Door opening positioning device and hinged door

Abstract

The door opening positioning device comprises a stop seat and a door leaf hinged to a vehicle body, the stop seat comprises a sliding block and a fixing seat connected to the vehicle body, the side face, close to the vehicle body, of the fixing seat is connected with a soft cushion, the fixing seat is provided with a mounting hole in the thickness direction of the vehicle body, and the sliding block is slidably connected into the mounting hole through an elastic piece; when the sliding block is located in the fixing base, the elastic piece is in a natural state, and when the outer end face of the sliding block is located on the outer side of the soft cushion, the elastic piece is stretched or compressed. The door leaf is connected with magnetic steel matched with the sliding block, so that when the door leaf is close to the vehicle body, the elastic piece is stretched or compressed, and the magnetic steel and the sliding block are attracted.

Description

Technical Field

[0001] The present application relates to the technical field of hinged doors, and in particular to a door opening positioning device and a hinged door. Background Art

[0002] Currently, most rail train driver's cab doors are hinged doors. In order to ensure that the driver's cab door can move stably and smoothly during opening and provide effective limiting when needed, a stop structure is generally set inside the door.

[0003] The existing stop structure of the driver's cab door has the following problems: the existing stop structure consists of two parts: a stop pin and a stop seat, the stop seat is installed on the floor inside the vehicle or the end wall of the vehicle body, and the stop pin is installed on the inner side of the door leaf. When the door is opened, the stop pin on the inner side of the door leaf hits the stop seat on the floor inside the vehicle or the end wall of the vehicle body and is inserted into the socket of the stop seat, thereby achieving the limit of door opening; 1) When the stop structure collides, due to the large instantaneous impact force, a large noise may be generated, causing discomfort to the surrounding environment and passengers, and affecting the comfort of the passengers; 2) The stop structure adopts hard materials such as metal. Long-term use and frequent collisions may cause damage and loosening of the stop structure, affecting its service life; 3) The stop pin and the stop seat protrude from the installation surface, resulting in a decrease in the overall appearance quality of the vehicle interior, and it is also easy to accidentally injure the operator, posing a safety hazard. Summary of the Invention

[0004] The purpose of this application is to provide a door opening positioning device and a hinged door to solve the problems of high noise caused by door opening impact and large space occupied in the appearance quality in the prior art.

[0005] To achieve the above objectives, this application is implemented using the following technical solutions:

[0006] A door opening positioning device includes a door leaf hinged to a vehicle body, and further includes:

[0007] The stopper includes a slider and a fixing seat connected to the vehicle body, wherein a soft pad is connected to a side of the fixing seat close to the vehicle body, and a mounting hole is provided on the fixing seat along the thickness direction of the vehicle body. The slider is slidably connected to the mounting hole via an elastic member. When the slider is in the fixing seat, the elastic member is in a natural state. When the outer end surface of the slider is located outside the soft pad, the elastic member is stretched or compressed.

[0008] The door leaf is connected to a magnetic steel that is adapted to the slider, so that when the door leaf approaches the vehicle body, the elastic member is stretched or compressed, and the magnetic steel and the slider are attracted.

[0009] Furthermore, the stop seat further includes a baffle and a rotating shaft, wherein the rotating shaft passes through the through hole of the slider and is connected to the baffle located outside the fixed seat;

[0010] The elastic member is a compression spring, which is sleeved on the rotating shaft and located between the baffle and the fixing seat.

[0011] Furthermore, the slider is provided with a screw hole, the baffle is provided with a countersunk hole, and the baffle and the slider are connected by a hexagon socket countersunk screw.

[0012] Furthermore, the baffle is sleeved on the rotating shaft, and a hexagonal nut is connected to the rotating shaft, and the hexagonal nut is located on a side of the baffle away from the fixing seat;

[0013] A washer is provided between the hexagonal nut and the baffle.

[0014] Furthermore, a cylindrical pin is provided in the mounting hole of the fixing seat, and the cylindrical pin is located on a side close to the cushion;

[0015] The slider has a protrusion on one side close to the baffle, which is matched with the cylindrical pin, so that when the slider compresses the compression spring, the cylindrical pin limits the protrusion.

[0016] Furthermore, the soft pad is a rubber pad, and there are two rubber pads that are symmetrical about the mounting hole of the fixing seat.

[0017] Furthermore, the dimension of the fixing seat protruding from the vehicle body is less than 5 mm;

[0018] The dimension of the door panel portion of the magnetic steel protruding from the door leaf is less than 5 mm.

[0019] Furthermore, the door leaf includes a door panel, and the magnet is connected to the door panel via a magnet flange and a limit plate.

[0020] Furthermore, the vehicle body is also connected with a lower locking gear, a middle locking gear and an upper locking gear for locking the door leaf.

[0021] In a second aspect, the present application discloses a hinged door, comprising the door opening positioning device described in any one of the first aspects.

[0022] The beneficial effects of this application are:

[0023] When the door leaf approaches the vehicle body, an attractive force is generated between the magnet and the slider, prompting the slider to move along the mounting hole, compressing or stretching the elastic member. This process not only realizes the automatic positioning of the door leaf, but also reduces the impact when the door leaf is opened due to the elastic member between the slider and the fixed seat acting as a buffer, thus extending the service life of the door leaf and the positioning device.

[0024] Using magnetic attraction instead of traditional mechanical snaps or locking methods avoids direct hard contact between metal parts. The magnetic attraction process is relatively smooth, which helps reduce noise generated when the door leaf opens, improving the user experience and enhancing passenger comfort.

[0025] The cushions on the fixing base can provide additional cushioning before the door leaf is fully opened, further reducing contact impact and noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the hinged door when it is closed in this application.

[0027] Figure 2 This is a schematic diagram of the structure when the hinged door is opened in this application.

[0028] Figure 3 This is a schematic diagram of the structure of the door leaf in this application; wherein, Figure 3 (a) is a schematic diagram of the front of the door leaf. Figure 3 (b) is a schematic diagram of the back of the door leaf.

[0029] Figure 4 Schematic diagram of the structure of the magnetic steel in this application; wherein, Figure 4 (a) is a schematic diagram of the front of the magnetic steel. Figure 4 (b) is a schematic diagram of the back side of the magnet.

[0030] Figure 5 This is a schematic diagram of the structure of the stop block in this application, wherein: Figure 5 (a) is the bottom view of the stop seat. Figure 5 (b) is the front view of the stop seat. Figure 5 (c) is a top view of the stop seat. Figure 5 Middle (d) is a side view of the stop seat.

[0031] Among them: 1. Car body; 2. Lower lock gear; 3. Middle lock gear; 4. Door leaf; 5. Upper lock gear; 6. Stop seat; 7. Door sill; 8. Handrail assembly; 9. Rubber strip assembly; 401. Door panel; 402. Upper hinge; 403. Lower hinge; 404. Door glass; 405. Magnetic flange; 406. Magnetic steel; 407. Middle lock; 408. Lower lock; 409. Upper lock tongue; 410. Middle lock tongue; 411. Lower lock tongue; 412. Reinforcement plate; 413. Limit plate; 601. Fixed seat; 602. Slider; 603. Rubber pad; 604. Rotating shaft; 605. Compression spring; 606. Cylindrical pin; 607. Baffle; 608. Washer; 609. Hexagonal nut; 610. Hexagon socket countersunk screw. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by this application easy to understand, this application is further explained below in conjunction with specific implementation methods.

[0033] It should be noted that in the description of this application, the terms "front", "rear", "left", "right", "up", "down", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and do not require that this application must be constructed and operated in a specific direction. Therefore, they should not be understood as limiting this application. The terms "front", "rear", "left", "right", "up", and "down" used in the description of this application refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0034] like Figure 1 、 Figure 2 As shown, a door opening positioning device includes a stop seat 6 and a door leaf 4 hinged on the vehicle body 1. The stop seat 6 includes a slider 602 and a fixed seat 601 connected to the vehicle body 1. The fixed seat 601 is connected to a cushion on the side close to the vehicle body 1. The fixed seat 601 is provided with a mounting hole along the thickness direction of the vehicle body 1. The slider 602 is slidably connected to the mounting hole through an elastic member. When the slider 602 is in the fixed seat 601, the elastic member is in a natural state. When the outer end face of the slider 602 is located on the outside of the cushion, the elastic member is stretched or compressed; a magnet 406 adapted to the slider 602 is connected to the door leaf 4, so that when the door leaf 4 is close to the vehicle body 1, the elastic member is stretched or compressed, and the magnet 406 and the slider 602 are attracted.

[0035] When used in this application, the initial state is: when the door leaf 4 is closed, the slider 602 is in its natural position within the fixed seat 601. At this time, the elastic member is in a natural, unstressed state, and the outer end surface of the slider does not extend beyond the outside of the cushion. The door leaf opening process: When the operator begins to open the door leaf, the door leaf gradually approaches the vehicle body. During this process, the magnet 406 on the door leaf also begins to approach the slider 602. Magnetic attraction and movement of the slider 602: When the distance between the magnet 406 and the slider 602 decreases to a certain range, the magnetic field of the magnet 406 begins to act on the slider 602, generating a suction force. As the door leaf continues to approach, the suction force gradually increases, overcoming the resistance of the elastic member and forcing the slider 602 to move outward along the mounting hole until the outer end surface of the slider 602 extends beyond the outside of the cushion. During this process, the elastic member is stretched or compressed, storing energy. When the door leaf contacts the cushion, because the slider has been attracted and extended by the magnet, the cushion provides initial cushioning, reducing the possibility of the door leaf directly hitting the vehicle body. Subsequently, the slider 602 is fully engaged with the magnet 406, and the door leaf 4 is firmly positioned under the action of the magnetic force. At the same time, the cushioning effect of the elastic member further absorbs the remaining kinetic energy, ensuring that the door leaf is parked smoothly and avoiding excessive impact. Maintaining the Positioned State: Once the door leaf is positioned, the magnetic attraction between the magnet 406 and the slider 602, as well as the reaction force of the elastic member, work together to maintain the door leaf in the correct position until the door leaf is next closed. The slider 602 rebounds to its initial position under the action of the restoring force of the elastic member, breaking the attraction with the magnet 406.

[0036] Through the above process, the door opening positioning device not only realizes the automatic positioning and buffering of the door leaf, but also ensures the safety and comfort of operation, while reducing mechanical wear and extending the service life of the device.

[0037] After the door is fully opened, the strong magnetic force generated by the magnetic steel on the inside of the door leaf tightly adsorbs the door leaf on the stop seat of the vehicle body, thereby achieving door opening limit; the principle of magnetic adsorption is used to avoid physical impact, greatly reduce noise and improve passenger comfort.

[0038] The lower lock block 2, the middle lock block 3, the door leaf 4, the upper lock block 5, the stop seat 6, the door sill 7, the handrail assembly 8 and the rubber strip assembly 9 are all mounted on the vehicle body 1 through fasteners.

[0039] like Figure 3 As shown in (a) and (b), the door leaf 4 is mainly composed of a door panel 401, an upper hinge 402, a lower hinge 403, a door glass 404, a magnetic flange 405, a magnetic steel 406, an intermediate lock 407, a lower lock 408, an upper lock tongue 409, an intermediate lock tongue 410, and a lower lock tongue 411.

[0040] Door panel 401 is connected to vehicle body 1 via upper hinge 402 and lower hinge 403. A magnetic flange 405, magnet 406, intermediate lock 407, lower lock 408, upper lock tongue 409, intermediate lock tongue 410, and lower lock tongue 411 are all mounted on door panel 401. When the vehicle door is closed, the upper lock tongue 409, intermediate lock tongue 410, and lower lock tongue 411 respectively overlap with the upper lock stop 5, intermediate lock stop 3, and lower lock stop 2 fixed to vehicle body 2, ensuring that door leaf 4 remains closed and in close contact with rubber strip assembly 9, achieving a sealed door. The intermediate lock 407 and lower lock 408 work in tandem; operating either one retracts the upper lock tongue 409, intermediate lock tongue 410, and lower lock tongue 411, unlocking the vehicle door.

[0041] like Figure 4 As shown in Figures (a) and (b), after the magnet 406 passes through the notch of the magnet flange 405, the reinforcing plate 412 and the stop plate 413 are connected to the magnet flange 405 on the door panel 401 using fasteners. Furthermore, the outer surface of the magnet 406 does not protrude significantly from the outer surface of the door panel 401, and preferably, the two are flush to ensure the overall appearance quality.

[0042] like Figure 5 As shown in (a), (b), (c), and (d), the stopper 6 is mainly composed of a fixed seat 601, a slider 602, a rubber pad 603, a rotating shaft 604, a compression spring 605, a cylindrical pin 606, a baffle 607, a washer 608, a hexagonal nut 609, and a hexagon socket countersunk screw 610. There are two rubber pads 603, which are symmetrically arranged on both sides of the mounting hole of the fixed seat 601 to buffer the adsorption force of the magnet when the door is fully opened. The use of the rubber pad 603 effectively absorbs the impact force of the magnet and the slider when the door leaf 4 is opened, reduces vibration and noise, and improves the user experience. The two symmetrically arranged rubber pads ensure a uniform buffering effect and avoid structural damage that may be caused by unilateral stress concentration.

[0043] Slider 602 is first inserted into the mounting hole of fixed base 601. Rotating shaft 604 is then installed into the through hole of slider 602. Compression spring 605 is then passed through, and hexagon socket countersunk screw 610 is used to connect slider 602 and baffle 607. Washer 608 and hexagonal nut 609 are fixed to the end of rotating shaft 604 to keep slider 602 in its initial state.

[0044] Through the combined use of the rotating shaft 604, the compression spring 605, the baffle 607, and the hexagon socket countersunk screw 610, the slider 602 is precisely positioned in its initial state, ensuring smooth operation and accurate final position during the opening process of the door leaf 4. The presence of the compression spring 605 not only provides the necessary elastic restoring force for the slider 602, but also ensures that the slider can move smoothly when subjected to external forces such as the adsorption force of a magnetic steel, and can quickly reset when no external force is applied, thereby improving the response speed and reliability of the device. The use of the hexagon socket countersunk screw 610 in conjunction with the baffle 607 not only fixes the position of the slider 602, but also enhances the structural stability of the entire device, maintaining good mechanical properties even under long-term use and frequent switching operations. The use of standardized connectors such as the hexagon socket countersunk screw 610, washers 608, and hexagon nuts 609 makes the assembly process of the device simple and quick, while also facilitating future maintenance and component replacement.

[0045] The fixing base 601 is provided with a pin hole for mounting a cylindrical pin 606. Specifically, the cylindrical pin 606 is located on the side closest to the cushion; the slider 602 has a raised portion on the side closest to the baffle 607 that matches the cylindrical pin 606. When the slider 602 compresses the compression spring 605, the cylindrical pin 606 limits the raised portion, preventing the slider 602 from excessive movement and separation from the fixing base 601.

[0046] When the door leaf is almost opened, the slider 602 is attracted by the strong magnetic force of the magnet 406 on the door leaf 4, and the slider pops out and is adsorbed together with the magnet, moves to the position of the cylindrical pin and stops, so that the door leaf 4 remains in the open position; when the car door is closed, the slider 602 is affected by external force and is separated from the magnetic force of the magnet 406. The slider 602 is retracted under the action of the compression spring 605 and returns to its initial state, achieving automatic reset.

[0047] In summary, in this patent application, magnetic attraction is used to generate a positioning force: after the door is fully opened, the strong magnetic force generated by the magnet on the inside of the door leaf tightly adsorbs the door leaf onto the stop seat of the vehicle body, thereby achieving door opening limit; the principle of magnetic adsorption is used to avoid physical impact, greatly reduce noise and improve passenger comfort. In this patent application, a flat structure is adopted: the stop seat and magnet are respectively installed in the corresponding areas on the inside of the vehicle body and the door leaf. The stop seat and magnet are both flattened and do not protrude significantly from the installation surface; this solution takes up little space, significantly improves the appearance quality of the inside of the door, and reduces the risk of personal injury from collisions.

[0048] In this patent application, a hidden design is adopted: the slider in the stop seat adopts a compression spring to achieve automatic reset. After the door leaf is opened almost to the position, the slider pops out and is adsorbed together with the magnet under the adsorption force of the magnet, realizing the door opening positioning function; after the car door is closed, the slider is separated from the magnet and retracted under the action of the spring force, returning to its initial state.

[0049] This patent application has the advantages of simple structure, high reliability, low noise, long life, easy installation and maintenance, etc.

[0050] Based on the door opening positioning device of any of the above embodiments of the present application, the present application also discloses a hinged door, which includes the door opening positioning device of any embodiment.

[0051] It is understood from common technical knowledge that the present application may be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the embodiments disclosed above are merely illustrative in all respects and are not intended to be exclusive. All modifications that come within the scope of this application or are equivalent to the scope of this application are intended to be included in this application.

Claims

1. A door opening positioning device, comprising a door leaf (4) hinged to a vehicle body (1), characterized in that: Also includes: The stopper seat (6) comprises a slider (602) and a fixing seat (601) connected to the vehicle body (1); a soft cushion is connected to a side of the fixing seat (601) close to the vehicle body (1); a mounting hole is provided on the fixing seat (601) along the thickness direction of the vehicle body (1); the slider (602) is slidably connected in the mounting hole via an elastic member; when the slider (602) is in the fixing seat (601), the elastic member is in a natural state; when the outer end surface of the slider (602) is located outside the soft cushion, the elastic member is stretched or compressed; The door leaf (4) is connected to a magnetic steel (406) adapted to the slider (602), so that when the door leaf (4) approaches the vehicle body (1), the elastic member is stretched or compressed, and the magnetic steel (406) and the slider (602) are attracted.

2. The door opening positioning device according to claim 1, characterized in that: The stop seat (6) further comprises a baffle (607) and a rotating shaft (604), wherein the rotating shaft (604) passes through the through hole of the slider (602) and is connected to the baffle (607) located outside the fixed seat (601); The elastic member is a compression spring (605), which is sleeved on the rotating shaft (604) and located between the baffle (607) and the fixing seat (601).

3. The door opening positioning device according to claim 2, characterized in that: The slider (602) is provided with a screw hole, the baffle (607) is provided with a countersunk hole, and the baffle (607) and the slider (602) are connected via a hexagon socket countersunk screw (610).

4. The door opening positioning device according to claim 2, characterized in that: The baffle (607) is sleeved on the rotating shaft (604), and a hexagonal nut (609) is connected to the rotating shaft (604). The hexagonal nut (609) is located on a side of the baffle (607) away from the fixing seat (601); A washer (608) is provided between the hexagonal nut (609) and the baffle (607).

5. The door opening positioning device according to claim 2, characterized in that: A cylindrical pin (606) is provided in the mounting hole of the fixing seat (601), and the cylindrical pin (606) is located on a side close to the cushion; The slider (602) has a protrusion on one side close to the baffle (607) that matches the cylindrical pin (606), so that when the slider (602) compresses the compression spring (605), the cylindrical pin (606) limits the protrusion.

6. The door opening positioning device according to claim 1, characterized in that: The soft pad is a rubber pad (603), and there are two rubber pads (603) that are symmetrical about the mounting hole of the fixing seat (601).

7. The door opening positioning device according to claim 1, characterized in that: The dimension of the fixing seat (601) protruding from the vehicle body (1) is less than 5 mm; The size of the portion of the magnetic steel (406) protruding from the door panel (401) of the door leaf (4) is less than 5 mm.

8. The door opening positioning device according to claim 1, characterized in that: The door leaf (4) comprises a door panel (401), and the magnetic steel (406) is connected to the door panel (401) via a magnetic steel flange (405) and a limiting plate (413).

9. The door opening positioning device according to claim 1, characterized in that: The vehicle body (1) is also connected with a lower locking gear (2), a middle locking gear (3) and an upper locking gear (5) for locking the door leaf (4).

10. A hinged door, characterized in that: The invention comprises the door opening positioning device according to any one of claims 1 to 9.

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