A support device, a door assembly and a vehicle

Abstract

The present invention belongs to the technical field of vehicle accessories, and particularly relates to a support device, a door assembly and a vehicle. A support device includes a first component: the first component has a connection end, and the connection end is adapted to be rotatably connected to the vehicle body frame; a second component, the second component is slidably connected to the first component, and one end of the second component away from the connection end is adapted to be rotatably connected to the door; a locking device, the locking device is configured to: when the flipping of the door drives the second component to move relative to the first component in a first direction to a target position, restrict the second component from moving relative to the first component in a second direction; wherein, the first direction and the second direction are opposite, and the target position is any position in the movement track of the second component relative to the first component. When the door is flipped in the opening direction, the second component cannot slide relative to the first component in the direction close to the connection end, and the door is in a state where closing is blocked.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle accessories, and particularly relates to a support device, a door assembly and a vehicle. Background Art

[0002] In the related art, a manual strut structure installed on the hatch door of a passenger car includes a strut, a support base and a support slot. The support slot is installed on the hatch door. The upper end of the strut is connected to the hatch door through a ball joint hinge. The strut can rotate around the ball joint hinge. A lower support is provided at the lower end of the strut. The support base is installed on the side wall of the body hatch opening skeleton. When the hatch door is closed, the strut is manually retracted and horizontally placed on the support slot. When the hatch door is opened, the lower support is temporarily connected to the support base, so that the strut supports the opening of the hatch door to realize the opening of the hatch door.

[0003] However, for the above-mentioned manual strut structure, since the length of the strut is fixed, the hatch door can only be opened to a fixed angle, resulting in that the user cannot change the opening angle according to the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: aiming at the problem that in the existing manual strut structure, since the length of the strut is fixed, the hatch door can only be opened to a fixed angle, resulting in that the user cannot change the opening angle according to the needs, a support device, a door assembly and a vehicle are provided.

[0005] To solve the above technical problem, on the one hand, an embodiment of the present invention provides a support device, which includes a first component: the first component has a connection end, and the connection end is adapted to be rotatably connected to the vehicle body skeleton;

[0006] A second component, the second component is slidably connected to the first component, and one end of the second component away from the connection end is adapted to be rotatably connected to the door body;

[0007] A locking device, the locking device is configured to: when the turning of the door body drives the second component to move relative to the first component in a first direction to a target position, restrict the second component from moving relative to the first component in a second direction; wherein, the first direction and the second direction are opposite, and the target position is any position in the movement track of the second component relative to the first component.

[0008] Optionally, it further includes: a switching device, the switching device is configured to: when the door body is in a closed state, control the locking device to be in a first state, and the first state is characterized in that: the locking device restricts the second component from sliding in a direction away from the connection end;

[0009] When the door body is in the open state, control the locking device to be in the second state, where the second state is characterized in that the locking device restricts the second component from sliding in the direction close to the connection end.

[0010] Optionally, the locking device includes a support, a moving member, and a locking member. The moving member and the locking member are respectively installed on the support. The support is movably connected to the second component, and the moving member is in transmission connection with the first component;

[0011] In the first state, the locking member restricts the moving member from moving in the direction away from the connection end, and the moving member can only move in the direction close to the connection end to restrict the second component from sliding in the direction away from the connection end; in the second state, the locking member restricts the moving member from moving in the direction close to the connection end, and the moving member can only move in the direction away from the connection end to restrict the second component from sliding in the direction close to the connection end.

[0012] Optionally, the moving member is a ratchet wheel, and the locking member is a ratchet pawl. The ratchet wheel and the ratchet pawl are respectively rotatably installed on the support. The ratchet wheel rotates when the second component slides relative to the first component; when switching from the first state to the second state, the transmission direction between the ratchet wheel and the first component is reversed;

[0013] In the first state, the ratchet pawl unidirectionally locks the ratchet wheel, the ratchet pawl restricts the ratchet wheel from rotating in the first rotation direction, and the ratchet wheel can only rotate in the second rotation direction to move in the direction close to the connection end; in the second state, the ratchet pawl unidirectionally locks the ratchet wheel, the ratchet pawl restricts the ratchet wheel from rotating in the first rotation direction, and the ratchet wheel can only rotate in the second rotation direction to move in the direction away from the connection end; where the first rotation direction and the second rotation direction are opposite.

[0014] Optionally, the ratchet wheel has an internal gear ring, and the internal gear ring is provided with a plurality of ratchet teeth spaced along its circumferential direction. A ratchet tooth groove is formed between adjacent ratchet teeth;

[0015] The support includes a column body. The internal gear ring is sleeved on the outer periphery of the column body. The column body is provided with a mounting groove, and the opening of the mounting groove exposes the outer peripheral surface of the column body. The ratchet pawl is rotatably installed in the mounting groove, and the ratchet pawl can extend out of the opening of the mounting groove and engage with the ratchet tooth groove.

[0016] Optionally, the rotation axis of the ratchet wheel is parallel to the rotation axis of the ratchet pawl.

[0017] Optionally, an external supporting elastic member is further included. The external supporting elastic member is installed in the installation groove and abuts between the side wall of the installation groove and the ratchet pawl. The elastic force of the external supporting elastic member causes the ratchet pawl to always have a tendency to rotate towards the direction of engaging with the ratchet tooth groove.

[0018] Optionally, a plurality of ratchet pawls are provided, and the plurality of ratchet pawls are spaced apart along the circumferential direction of the column body.

[0019] Optionally, the support further includes a connecting plate. The connecting plate has a first surface and a second surface opposite to each other along the axial direction of the column body. One axial end of the column body is fixed on the first surface, the other axial end of the column body abuts against the second component, and the second surface is movably connected to the second component.

[0020] Optionally, two ratchets are provided, including a first ratchet and a second ratchet. The centers of the first ratchet and the second ratchet are symmetric about the connection position between the second surface and the second component. The spiral directions of the ratchet tooth grooves on the first ratchet and the second ratchet are opposite; when the second component slides relative to the first component, the rotation directions of the first ratchet and the second ratchet are opposite;

[0021] Two column bodies are provided at intervals, and the two column bodies correspond to the two ratchets one by one. At least one ratchet pawl is rotatably installed on each column body.

[0022] Optionally, both the first ratchet and the second ratchet have external tooth rings. The second component is provided with a first rack and a second rack extending along the first direction;

[0023] In the first state, the external tooth ring of the first ratchet meshes with the first rack, the external tooth ring of the second ratchet meshes with the second rack, and the second ratchet is closer to the connection end than the first ratchet;

[0024] In the second state, the external tooth ring of the second ratchet meshes with the first rack, the external tooth ring of the first ratchet meshes with the second rack, and the second ratchet is closer to the connection end than the first ratchet.

[0025] Optionally, only one ratchet is provided. The ratchet has an external tooth ring. The second component is provided with a third rack and a fourth rack extending along the first direction;

[0026] In the first state, the external tooth ring of the ratchet meshes with the third rack, and in the second state, the external tooth ring of the ratchet meshes with the fourth rack.

[0027] Optionally, a torsion spring is further included, one end of the torsion spring is fixed on the second component, and the other end is fixed on the support; the switching device includes a traction rope and a knob lock, the knob lock is rotatably mounted on the door body, one end of the traction rope is connected to and wound around the torsion spring, and the other end is wound around the knob lock;

[0028] Rotate the knob lock to contract or release the traction rope, thereby driving the torsion spring to rotate, so that the support rotates, and the locking device switches between the first state and the second state.

[0029] Optionally, the first component includes a support shell, the support shell has a long groove extending along the first direction, the long groove has a mounting opening extending along the first direction, and the locking device is installed into the long groove through the mounting opening;

[0030] The second component includes a sliding shell, the sliding shell covers the support shell and covers the mounting opening, one side of the support along the opening direction of the mounting opening abuts against the bottom wall of the long groove, and the other side of the support along the opening direction of the mounting opening abuts against the sliding shell.

[0031] Optionally, the connecting end rotates around a first rotation axis, the second component rotates around a second rotation axis, the first rotation axis is parallel to the second rotation axis, and the first rotation axis is perpendicular to the first direction.

[0032] On the other hand, an embodiment of the present invention provides a door body assembly, including a door body and the above-mentioned support device, the door body is rotatably mounted on the vehicle body frame, and is used to open or close an opening on the vehicle body frame, and the connecting end is rotatably connected to the opening.

[0033] Optionally, there are two support devices, one end of the second component away from the connecting end is rotatably connected to one side of the door body along the rotation axis, and one end of the other second component away from the connecting end is rotatably connected to the other side of the door body along the rotation axis.

[0034] In the door body assembly of the present invention, since the locking device can limit the movement of the second component in the second direction when the second component moves to the target position along the first direction, when the door body is flipped in the opening direction and the door body drives the second component to slide relative to the first component in a direction away from the connecting end, the second component cannot slide relative to the first component in a direction close to the connecting end, and the door body cannot be flipped in the closing direction, being in a closed-blocked state, so that the door body can hover at the target angle, thereby the opening angle of the door body can be changed as required and the opening degree can be controlled.

[0035] On the other hand, an embodiment of the present invention provides a vehicle, including a body frame and the above-mentioned door assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. 6 is a schematic structural diagram of the door assembly provided by an embodiment of the present invention mounted on a vehicle;

[0037] Figure 2 FIG. Figure 1 is a schematic structural diagram of another perspective of FIG.

[0038] Figure 3 FIG. Figure 1 is a schematic structural diagram when the door assembly in FIG. is opened;

[0039] Figure 4 FIG. Figure 3 is an exploded view of FIG.

[0040] Figure 5 FIG. Figure 4 is a schematic structural diagram of the support device in FIG.

[0041] Figure 6 FIG. Figure 5 is an exploded view of the locking device in FIG.

[0042] Figure 7 FIG. Figure 6 is an assembly diagram of the locking device in FIG.

[0043] Figure 8 FIG. Figure 5 is a schematic structural diagram when the locking device is in the first state and locked;

[0044] Figure 9 FIG. Figure 8 is a schematic structural diagram when the locking device in FIG. is switched to the second state and unlocked;

[0045] Figure 10 FIG. Figure 9 is a schematic structural diagram of the support device in FIG. after the second component slides a certain distance.

[0046] The reference numerals in the specification are as follows:

[0047] 1. Door body; 2. Body frame; 21. Opening and closing opening; 3. Second component; 4. First component; 41. Connection end; 42. First rack; 43. Second rack; 5. Towing rope; 6. Knob lock; 7. Locking device; 71. Ratchet wheel; 71A. First ratchet wheel; 71B. Second ratchet wheel; 711. Inner gear ring; 712. Outer gear ring; 72. Pawl; 73. Support; 731. Cylinder; 732. Installation groove; 733. Connection plate; 74. Outer support elastic member; 75. Torsion spring; 8. Hinge. DETAILED DESCRIPTION OF THE INVENTION

[0048] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] In the manual strut structure of the prior art, since the length of the strut is fixed, the hatch door can only be opened to a fixed angle, resulting in the user being unable to change the opening angle according to requirements. For example, when the opening space of the hatch door is limited and the fixed angle cannot be opened, the manual strut cannot support the hatch door. For example, after the hatch door is opened at a fixed angle, the height of the hatch door is relatively high, and some users cannot close the hatch door. Therefore, it is necessary to reduce the opening angle of the hatch door when opening. At this time, the manual strut structure cannot support the hatch door. To solve the above problems, the present invention provides a door body assembly.

[0050] As Figures 1 to 3 shown, an embodiment of the present invention provides a door body assembly for being installed on a vehicle body frame 2, and an opening and closing opening 21 is provided on the vehicle body frame 2. The door body assembly includes a door body 1 and a support device. The door body 1 is rotatably installed on the vehicle body frame 2 and is used to open or close the opening and closing opening 21.

[0051] As Figure 3 and Figure 4 shown, the support device includes a first component 4, a second component 3 and a locking device 7. The first component 4 has a connection end 41, and the connection end 41 is rotatably connected to the vehicle body frame 2.

[0052] The second component 3 is slidably connected to the first component 4, and one end of the second component 3 away from the connection end 41 is rotatably connected to the door body 1.

[0053] The locking device 7 is configured to: when the flipping of the door body 1 drives the second component 3 to move relative to the first component 4 in a first direction to a target position, restrict the second component 3 from moving relative to the first component 4 in a second direction. Wherein, the first direction and the second direction are opposite, and the target position is any position in the movement track of the second component 3 relative to the first component 4.

[0054] Specifically, as Figure 3As shown in the figure, when the door body 1 is flipped in the opening direction, the door body 1 drives the second component 3 to slide relative to the first component 4 in a direction away from the connection end 41. The first direction refers to the direction in which the second component 3 slides relative to the first component 4 away from the connection end 41, and the second direction opposite to the first direction refers to the direction in which the second component 3 slides relative to the first component 4 towards the connection end 41. Since the locking device 7 can limit the movement of the second component 3 in the second direction when the second component 3 moves in the first direction to the target position, the second component 3 cannot slide relative to the first component 4 towards the connection end 41, and the door body 1 cannot be flipped in the closing direction, being in a state of blocked closing, so that the door body 1 can hover at the target angle, and thus the opening angle of the door body 1 can be changed as needed and the opening degree can be controlled.

[0055] When the door body 1 is flipped in the closing direction, the door body 1 drives the second component 3 to slide relative to the first component 4 in a direction towards the connection end 41. The first direction refers to the direction in which the second component 3 slides relative to the first component 4 towards the connection end 41, and the second direction opposite to the first direction refers to the direction in which the second component 3 slides relative to the first component 4 away from the connection end 41. Since the locking device 7 can limit the movement of the second component 3 in the second direction when the second component 3 moves in the first direction to the target position, the second component 3 cannot slide relative to the first component 4 away from the connection end 41, preventing the door body 1 from being accidentally flipped in the opening direction during the closing process.

[0056] It should be noted that the door body 1 includes, but is not limited to, hatch doors of passenger cars, commercial vehicles, etc., or objects such as vehicle windows that need to be flipped open.

[0057] The support device is a pure mechanical device, not affected by external factors such as temperature, and is convenient for design and selection.

[0058] In the door body assembly of the present invention, since the locking device 7 can limit the movement of the second component 3 in the second direction when the second component 3 moves in the first direction to the target position, when the door body 1 is flipped in the opening direction and the door body 1 drives the second component 3 to slide relative to the first component 4 in a direction away from the connection end 41, the second component 3 cannot slide relative to the first component 4 towards the connection end 41, and the door body 1 cannot be flipped in the closing direction, being in a state of blocked closing, so that the door body 1 can hover at the target angle, and thus the opening angle of the door body 1 can be changed as needed and the opening degree can be controlled.

[0059] In an embodiment, as shown in the figure, the support device further includes a switching device, and the switching device is configured to: when the door body 1 is in the closed state, control the locking device 7 to be in the first state, and the first state is characterized in that: the locking device 7 restricts the second component 3 from sliding in a direction away from the connection end 41.

[0060] When the door body 1 is in the open state, the locking device 7 is controlled to be in the second state, and the second state is characterized in that: the locking device 7 restricts the second component 3 from sliding in the direction approaching the connection end 41. The "open state" includes the state where the door body 1 is in the fully open state and the state where the door body 1 is opened at any position.

[0061] Since when the door body 1 is in the closed state, the locking device 7 in the first state restricts the second component 3 from sliding in the direction away from the connection end 41, restricting the opening of the door body 1. And when the user needs to open the door body 1, it is necessary to first use the switching device to switch the locking device 7 from the first state to the second state for unlocking before the door body 1 can be opened to drive the second component 3 to move in the direction away from the connection end 41, avoiding accidental opening of the door body 1 when it is closed and causing injury to personnel. At the same time, it saves the need to separately provide a locking structure on the door body 1 to lock the door body 1 in the closed state.

[0062] In one embodiment, as Figure 5 and Figure 6 shown, the locking device 7 includes a support 73, a moving member, and a locking member. The support 73 is movably connected to the second component 3, the moving member and the locking member are respectively installed on the support 73, and the moving member is in driving connection with the second component 3.

[0063] In the first state, the locking member restricts the moving member from moving in the direction away from the connection end 41. The moving member can only move in the direction approaching the connection end 41 to restrict the second component 3 from sliding in the direction away from the connection end 41, and the support 73 and the second component 3 can only slide in the direction approaching the connection end 41.

[0064] In the second state, the locking member restricts the moving member from moving in the direction approaching the connection end 41. The moving member can only move in the direction away from the connection end 41 to restrict the second component 3 from sliding in the direction approaching the connection end 41, and the support 73 and the second component 3 can only slide in the direction away from the connection end 41.

[0065] Specifically, when the second component 3 slides relative to the second component 3, the locking member and the moving member installed on the support 73 can move together with the second component 3, so that the locking of the locking member and the moving member can restrict the movement of the second component 3 at different target positions.

[0066] Among them, the locking member in the first state restricts the moving member from moving in the direction away from the connection end 41, so that the support 73 and the second component 3 can only slide in the direction approaching the connection end 41, and the door body 1 is in a state where the opening is blocked, thereby being able to lock the door body 1 closed at the opening 21.

[0067] When it is necessary to open the door body 1, the locking device 7 is switched from the first state to the second state by using the switching device. The locking member in the second state restricts the moving member from moving towards the connection end 41, so that the support 73 and the second component 3 can only slide away from the connection end 41, and the door body 1 is in a state where closing is blocked. Thus, the door body 1 can be opened and hover-locked at different angles.

[0068] In one embodiment, as Figure 6 and Figure 7 shown, the moving member is a ratchet wheel 71, the locking member is a pawl 72. The ratchet wheel 71 and the pawl 72 are respectively rotatably mounted on the support 73. The ratchet wheel 71 is in driving connection with the second component 3, and the ratchet wheel 71 rotates when the second component 3 slides relative to the second component 3. When switching from the first state to the second state, the driving direction between the ratchet wheel 71 and the second component 3 is reversed.

[0069] In the first state, the pawl 72 unidirectionally locks the ratchet wheel 71. The pawl 72 restricts the ratchet wheel 71 from rotating in the first rotation direction, and the ratchet wheel 71 can only rotate in the second rotation direction to move towards the connection end 41.

[0070] In the second state, the pawl 72 unidirectionally locks the ratchet wheel 71. The pawl 72 restricts the ratchet wheel 71 from rotating in the first rotation direction, and the ratchet wheel 71 can only rotate in the second rotation direction to move away from the connection end 41; wherein, the first rotation direction and the second rotation direction are opposite.

[0071] The so-called "the driving direction is reversed" means that: in the first state, when the ratchet wheel 71 rotates in the second rotation direction, the ratchet wheel 71 in driving connection with the second component 3 moves towards the connection end 41, while in the second state, when the ratchet wheel 71 rotates in the second rotation direction, the ratchet wheel 71 in driving connection with the second component 3 moves away from the connection end 41.

[0072] Specifically, as Figure 1 and Figure 8 shown, when the door body 1 is closed at the opening 21 and the locking device 7 is in the first state, the pawl 72 unidirectionally locks the ratchet wheel 71. The pawl 72 restricts the ratchet wheel 71 from rotating in the first rotation direction, and the ratchet wheel 71 can only rotate in the second rotation direction to move towards the connection end 41. The support 73 and the second component 3 can only slide towards the connection end 41, that is, the door body 1 is in a state where opening is blocked, so as to lock the door body 1 at the opening 21 to prevent the door body 1 from being accidentally opened.

[0073] As Figure 3 and Figure 9As shown, when it is necessary to flip the closed door body 1 in the opening direction, first use the switching device to switch the locking device 7 from the first state to the second state. The driving direction of the ratchet wheel 71 in the second state and the second component 3 is opposite to the driving direction of the ratchet wheel 71 in the first state and the second component 3. The pawl 72 restricts the ratchet wheel 71 from rotating in the first rotation direction, and the ratchet wheel 71 can only rotate in the second rotation direction to move away from the connection end 41. At this time, the door body 1 is in a state where closing is blocked and can only be flipped in the opening direction.

[0074] Then, as Figure 9 shown, flip the door body 1 in the opening direction. During the opening process of the door body 1, the support 73 and the second component 3 slide away from the connection end 41, and the ratchet wheel 71 rotatably mounted on the support 73 moves away from the connection end 41. The pawl 72 slides on the ratchet teeth of the ratchet wheel 71 when the ratchet wheel 71 rotates.

[0075] As Figure 10 shown, when the door body 1 rotates to a certain angle and needs to hover, the one-way locking of the pawl 72 and the ratchet wheel 71 can restrict the ratchet wheel 71 from moving towards the connection end 41, so as to restrict the support 73 and the second component 3 from sliding towards the connection end 41, that is, restrict the door body 1 from flipping in the closing direction. The support device can support the door body 1 to achieve hovering of the door body 1 at the target angle, so that the user can control the opening angle of the door body 1 according to needs.

[0076] When the opened door body 1 needs to be closed, first use the switching device to switch the locking device 7 from the second state to the first state. The door body 1 is in a state where opening is blocked and can only be flipped in the closing direction. Then flip the door body 1 to close it. And after the door body 1 is flipped to close the opening 21, the locking device 7 in the first state can lock the second component 3 in one direction to restrict the door body 1 from opening, realizing the locking of the door body 1.

[0077] The locking of the door body 1 in the closed state and when hovering after opening is realized by a set of locking devices 7, which simplifies the structure, reduces the number of components, and reduces the volume of the support device.

[0078] In an embodiment, as Figure 6 and Figure 7 shown, the ratchet wheel 71 has an inner gear ring 711, and the inner gear ring 711 is provided with a plurality of ratchet teeth spaced apart along its circumferential direction, and a ratchet tooth groove is formed between adjacent ratchet teeth.

[0079] The support 73 includes a column body 731. The internal gear ring 711 is sleeved on the outer periphery of the column body 731. An installation groove 732 is provided on the column body 731. The opening of the installation groove 732 exposes the outer peripheral surface of the column body 731. The pawl 72 is rotatably installed in the installation groove 732 around the third rotation axis. The pawl 72 can extend out from the opening of the installation groove 732 and be inserted into the ratchet tooth groove. Compared with the external ratchet wheel 71, the pawl 72 cooperating with the internal gear ring 711 is installed inside the internal gear ring 711. The volume of the locking device 7 is smaller and it occupies less space, which is beneficial to arranging the locking device 7 between the second component 3 and the second component 3 with limited space.

[0080] In one embodiment, the rotation axis of the ratchet wheel 71 is parallel to the rotation axis of the pawl 72 to simplify the structure of the internal gear ring 711.

[0081] In one embodiment, an external support elastic member 74 is further included. The external support elastic member 74 is installed in the installation groove 732 and abuts between the side wall of the installation groove 732 and the pawl 72. The elastic force of the external support elastic member 74 makes the pawl 72 always have a tendency to rotate towards the direction of being inserted into the ratchet tooth groove.

[0082] When the pawl 72 unidirectionally locks the ratchet wheel 71, the external support elastic member 74 elastically supports the pawl 72 to extend out of the installation groove 732 so that the pawl 72 is inserted into the ratchet tooth groove. When the ratchet wheel 71 rotates relative to the pawl 72, the ratchet wheel 71 intermittently overcomes the elastic force of the external support elastic member 74 to press the pawl 72 into the installation groove 732, and the pawl 72 slides on the ratchet teeth of the internal gear ring 711.

[0083] The elastic force of the external support elastic member 74 makes the pawl 72 always have a tendency to rotate towards the direction of being inserted into the ratchet tooth groove. Therefore, the setting of the external support elastic member 74 can increase the speed of the pawl 72 being inserted into the ratchet tooth groove, and further improve the sensitivity of the pawl 72 to lock the ratchet tooth groove.

[0084] In one embodiment, the external support elastic member 74 is a spring.

[0085] In other embodiments, the external support elastic member 74 can be a rubber member.

[0086] In one embodiment, protruding rotating shaft portions are respectively provided on both sides of the pawl 72 along the rotation axis. The rotating shaft portions are columnar. Rotating shaft holes are provided on two opposite side walls of the installation groove 732. The rotating shaft portions on both sides are respectively inserted into the two rotating shaft holes so that the pawl 72 is rotatably installed in the installation groove 732.

[0087] In one embodiment, the outer peripheral surface of the pawl 72 extending in the direction of its axis of rotation includes a sliding surface, an abutting surface, and a transition surface that are connected end to end in sequence. The outer support elastic member 74 abuts between the abutting surface and the side wall of the mounting groove 732. When the ratchet wheel 71 rotates relative to the pawl 72, one side wall of the ratchet tooth groove slides over the sliding surface in the circumferential direction, so that the pawl 72 gradually disengages from the ratchet tooth groove. When the pawl 72 and the ratchet wheel 71 are locked unidirectionally, the other side wall of the ratchet tooth groove in the circumferential direction is in blocking cooperation with the abutting surface.

[0088] In one embodiment, a plurality of pawls 72 are provided, and the plurality of pawls 72 are spaced apart in the circumferential direction of the column body 731 to increase the number of pawls 72 locked with the ratchet wheel 71, improve the uniformity of the force on the ratchet wheel 71, and further improve the stability when the ratchet wheel 71 is locked.

[0089] In one embodiment, two pawls 72 are provided, and the two pawls 72 are arranged on opposite sides of the ratchet wheel 71 in its radial direction.

[0090] In one embodiment, as Figure 6 and Figure 7 shown, the support 73 further includes a connecting plate 733. The connecting plate 733 has a first surface and a second surface that are opposite to each other in the axial direction of the column body 731. One axial end of the column body 731 is fixed on the first surface, the other axial end of the column body 731 abuts against the second component 3, and the second surface is movably connected to the second component 3. The area of the second surface of the connecting plate 733 is larger than the area of the end surface of one axial end of the column body 731, which is convenient for movably connecting the second component 3.

[0091] In one embodiment, as Figures 6 to 8 shown, two ratchet wheels 71 are provided, including a first ratchet wheel 71A and a second ratchet wheel 71B. The center of the first ratchet wheel 71A and the center of the second ratchet wheel 71B are symmetric about the connection position of the second surface and the second component 3, and the spiral directions of the ratchet tooth grooves on the first ratchet wheel 71A and the second ratchet wheel 71B are opposite. When the second component 3 slides relative to the second component 3, the rotation directions of the first ratchet wheel 71A and the second ratchet wheel 71B are opposite.

[0092] The so-called "spiral direction of the ratchet tooth groove" refers to the direction in which the ratchet tooth groove inclines from the radially inner side to the radially outer side along the circumferential direction of the ratchet wheel 71.

[0093] Two column bodies 731 are provided at intervals, and the two column bodies 731 correspond to the two ratchet wheels 71 one by one. At least one pawl 72 is rotatably mounted on each column body 731.

[0094] Specifically, since the rotation directions of the first ratchet wheel 71A and the second ratchet wheel 71B are opposite when the second component 3 slides, the ratchet tooth grooves on the first ratchet wheel 71A and the second ratchet wheel 71B are designed to have opposite helix directions, so that the first ratchet wheel 71A and the corresponding pawl 72, and the second ratchet wheel 71B and the corresponding pawl 72 can jointly limit the sliding of the second component 3 in the same direction, thereby improving the locking strength of the locking device 7 on the second component 3.

[0095] In one embodiment, the first ratchet wheel 71A and the corresponding pawl 72 are locked in the counterclockwise direction, that is, the first rotation direction of the first ratchet wheel 71A is the counterclockwise direction, and the second ratchet wheel 71B and the corresponding pawl 72 are locked in the clockwise direction, that is, the first rotation direction of the second ratchet wheel 71B is the clockwise direction.

[0096] In one embodiment, as Figure 7 and Figure 8 shown, both the first ratchet wheel 71A and the second ratchet wheel 71B have an outer tooth ring 712, and the second component 3 includes a first rack 42 and a second rack 43 extending in the first direction.

[0097] In the first state, the outer tooth ring 712 of the first ratchet wheel 71A meshes with the first rack 42, the outer tooth ring 712 of the second ratchet wheel 71B meshes with the second rack 43, and the second ratchet wheel 71B is closer to the connection end 41 than the first ratchet wheel 71A.

[0098] In the second state, the outer tooth ring 712 of the second ratchet wheel 71B meshes with the first rack 42, the outer tooth ring 712 of the first ratchet wheel 71A meshes with the second rack 43, and the second ratchet wheel 71B is closer to the connection end 41 than the first ratchet wheel 71A.

[0099] The ratchet wheel 71 integrates an inner tooth ring 711 and an outer tooth ring 712, so that the ratchet wheel 71 can mesh with the rack while having the locking function with the pawl 72. When the ratchet wheel 71 and the pawl 72 are unlocked and the second component 3 slides relative to the second component 3, the outer tooth ring 712 meshes with the rack for transmission, so that the ratchet wheel 71 rolls in the first direction. The meshing transmission between the outer tooth ring 712 and the rack has high stability and is not easily damaged.

[0100] The arrangement of the two racks and the two ratchet wheels 71 enables both relative sides of the locking device 7 in the first state and the second state to mesh with the rack, improving the balance of the force on the locking device 7, and further improving the stability when the second component 3 slides and locks, and enhancing the safety of the support device.

[0101] In one embodiment, it further includes a torsion spring 75. One end of the torsion spring 75 is fixed on the second component 3, and the other end is fixed on the support 73. The switching device includes a traction rope 5 and a knob lock 6. The knob lock 6 is rotatably mounted on the door body 1. One end of the traction rope 5 is connected to and wound around the torsion spring 75, and the other end is wound around the knob lock 6.

[0102] Rotate the knob lock 6 to contract or release the traction rope 5, thereby driving the torsion spring 75 to rotate, so that the support 73 rotates, causing the locking device 7 to switch between the first state and the second state.

[0103] It should be noted that the initial state of the locking device 7 is the first state. As Figure 8 shown, in the first state, the corresponding pawl 72 of the first ratchet 71A restricts the first ratchet 71A from rotating counterclockwise. The torsion spring 75 has a tendency to keep the first ratchet 71A rotating counterclockwise, so that the first ratchet 71A and the corresponding pawl 72 can be locked.

[0104] As Figure 4 and Figure 9 shown, when it is necessary to switch to the second state, rotate the knob lock 6 to contract the traction rope 5, overcome the elastic force of the torsion spring 75, drive the torsion spring 75 to rotate clockwise, and then drive the locking device 7 to rotate clockwise to the second state.

[0105] When switching from the second state to the first state, rotate the knob lock 6 in the reverse direction to release the traction rope 5. The torsion spring 75 releases the elastic force, and the traction rope 5 is wound around the torsion spring 75. The torsion spring 75 drives the locking device 7 to rotate counterclockwise to the first state.

[0106] In one embodiment, the connecting end 41 rotates around the first rotation axis, and the second component 3 rotates around the second rotation axis. The first rotation axis is parallel to the second rotation axis, and the first rotation axis is perpendicular to the first direction.

[0107] In one embodiment, as Figure 5 shown, the first component 4 includes a support shell. The support shell has a long groove extending in the first direction. The long groove has an installation opening extending in the first direction. The locking device 7 is installed in the long groove through the installation opening.

[0108] The second component 3 includes a sliding shell. The sliding shell covers the second component 3 and seals the installation opening. One side of the support 73 along the opening direction of the installation opening abuts against the bottom wall of the long groove, and the other side of the support 73 along the opening direction of the installation opening abuts against the sliding shell, so as to limit both sides of the support 73 along the rotation axis by using the support shell and the sliding shell, without additional limiting parts, simplifying the structure of the support device.

[0109] In one embodiment, the first rack 42 and the second rack 43 are formed on opposite sides of the support shell in the width direction of the installation opening.

[0110] In one embodiment, the locking device 7 is located at one end of the second component 3 close to the connection end 41 of the second component 3, so as to increase the distance between the locking device 7 and the other end of the second component 3, increase the maximum sliding stroke of the second component 3 on the second component 3, and thus increase the maximum opening angle of the door body 1.

[0111] In one embodiment, both sides of the door body 1 in the direction of the rotation axis are hinged to the vehicle body frame 2 through hinges 8.

[0112] In one embodiment, a first through hole penetrating in the direction of its rotation axis is provided on the connection end 41 of the second component 3, a first hinge seat is provided on the vehicle body frame 2 at the opening and closing opening 21, a first hinge hole is provided on the first hinge seat, and one end of the rod portion of the bolt passes through the first through hole and the first hinge hole and is connected with a nut to hinge the connection end 41 to the first hinge seat.

[0113] In one embodiment, a second through hole penetrating in the direction of its rotation axis is provided at one end of the second component 3 away from the connection end 41 of the second component 3, a second hinge seat is provided on the door body 1, a second hinge hole is provided on the second hinge seat, and one end of the rod portion of the bolt passes through the second through hole and the second hinge hole and is connected with a nut to hinge the connection end 41 to the second hinge seat.

[0114] In one embodiment, as Figure 4 shown, there are two support devices. One end of the second component 3 away from the connection end 41 is rotatably connected to one side of the door body 1 along the rotation axis, and the other end of the second component 3 away from the connection end 41 is rotatably connected to the other side of the door body 1 along the rotation axis. The two support devices can jointly support the door body 1 to improve the stability of the door body 1 when hovering.

[0115] In one embodiment, the two support devices share a knob lock 6.

[0116] In other embodiments, the locking device 7 includes a displacement monitor, an elastic locking member, and a power device. The power device and the locking member are installed on the first component 4, and the power device is used to drive the locking member to move in a direction perpendicular to the first direction. The displacement monitor monitors the displacement change of the second component 3 at a set frequency. When the displacement monitor monitors that the displacement of the second component 3 is the same as the displacement data collected last time, the locking member is in a position to avoid the movement track of the second component 3, and when the displacement monitor monitors that the time of the second component 3 at the target position reaches the set time, the power device drives the locking member to extend to lock the second component 3.

[0117] In other embodiments, the moving member may be a limiting rod. A hook is provided on one side of the end of the limiting rod along the first direction. The locking member is a locking convex block, and a clamping groove is provided on the side of the locking convex block facing the hook. A plurality of avoiding grooves are provided on both opposite sides of the second component 3 at intervals along the first direction. When the door body 1 stops at an angle, the locking convex block protrudes from the corresponding avoiding groove, so that the hook of the limiting rod is clamped in the clamping groove, and the locking convex block restricts the movement of the limiting rod. In the first state, the locking convex block is located on the side of the limiting rod away from the connecting end 41 to restrict the limiting rod from moving away from the connecting end 41. The switching device controls the locking device 7 to rotate by a certain angle to the second state, so that the locking convex platform is located on the side of the limiting rod close to the connecting end 41 to restrict the limiting rod from moving towards the connecting end 41.

[0118] In other embodiments, only one ratchet wheel 71 is provided. The ratchet wheel 71 has an external gear ring 712. A third rack and a fourth rack extending along the first direction are provided on the second component 3.

[0119] In the first state, the external gear ring 712 of the ratchet wheel 71 meshes with the third rack. In the second state, the external gear ring 712 of the ratchet wheel 71 meshes with the fourth rack. The so-called "third rack" and "fourth rack" have the same arrangement position and structure as the first rack 42 and the second rack 43 shown in the figure.

[0120] In other embodiments, the ratchet wheel 71 may be an external ratchet wheel 71, and a plurality of ratchet teeth are provided on the outer circumference of the ratchet wheel 71. At this time, the ratchet pawl 72 is located on the radial outside of the ratchet wheel 71 and is rotatably installed on the support 73. A rotating shaft may be provided on the support 73, and the ratchet wheel 71 is installed on the rotating shaft.

[0121] In other embodiments, the external support elastic member 74 may be cancelled, and the structure of the ratchet pawl 72 itself is used to make the ratchet pawl 72 always have a tendency to rotate towards the direction of engaging with the ratchet tooth groove.

[0122] In other embodiments, the number of ratchet pawls 72 can be adjusted according to design requirements. For example, one, three or more.

[0123] In other embodiments, the external gear ring 712 of the ratchet wheel 71 may be cancelled. The outer peripheral surface of the ratchet wheel 71 may be a friction surface, and the ratchet wheel 71 forms a friction wheel. Correspondingly, a friction column or a friction belt extending along the first direction is provided on the second component 3, and the outer peripheral surface of the ratchet wheel 71 presses against the friction column or the friction belt to rotate. Of course, an external gear may also be added. The rotating shaft of the external gear is connected to the rotating shaft of the ratchet wheel 71, and the external gear meshes with the rack.

[0124] In other embodiments, the rack may be cancelled, and a transmission belt extending along the first direction may be provided on the second component 3. Meshing teeth are provided on the transmission belt, and the external gear ring 712 of the ratchet wheel 71 meshes with the transmission belt.

[0125] In other embodiments, the switching device may include a first motor. The first motor is installed on the second component 3, and the support 73 is rotatably installed on the second component 3. The output end of the first motor drives the support 73 to rotate, so as to switch the locking device 7 between the first state and the second state.

[0126] In other embodiments, a second motor may be added. The output shaft of the second motor is drivingly connected to the rotating shaft of the ratchet wheel 71. The second motor is used to drive the ratchet wheel 71 to rotate along the engagement with the rack, so as to drive the second component 3 to slide and realize automatic opening and closing of the door body 1.

[0127] In addition, an embodiment of the present invention provides a vehicle, including a vehicle body frame 2 and the door body assembly in any of the above embodiments. It should be noted that the door body 1 includes, but is not limited to, hatches or windows on vehicles such as passenger cars and commercial vehicles that need to be flipped open.

[0128] In addition, an embodiment of the present invention provides a support device, the structure of which is the same as that of the support device in any of the above embodiments, and will not be described in detail here.

[0129] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A support device, characterized in that, It includes: The first component (4): The first component (4) has a connection end (41), and the connection end (41) is adapted to be rotatably connected to the vehicle body frame (2); The second component (3), the second component (3) is slidably connected to the first component (4), and one end of the second component (3) away from the connection end (41) is adapted to be rotatably connected to the door body (1); The locking device (7), the locking device (7) is configured such that when the flipping of the door body (1) drives the second component (3) to move relative to the first component (4) in a first direction to a target position, the second component (3) is restricted from moving relative to the first component (4) in a second direction; wherein, the first direction and the second direction are opposite, and the target position is any position in the movement trajectory of the second component (3) relative to the first component (4); It further includes: The switching device, the switching device is configured such that when the door body (1) is in the closed state, the locking device (7) is controlled to be in a first state, and the first state is characterized in that: the locking device (7) restricts the second component (3) from sliding in a direction away from the connection end (41); When the door body (1) is in the open state, the locking device (7) is controlled to be in a second state, and the second state is characterized in that: the locking device (7) restricts the second component (3) from sliding in a direction close to the connection end (41).

2. The support device according to claim 1, characterized in that, The locking device (7) includes a support (73), a moving member and a locking member, the moving member and the locking member are respectively installed on the support (73), the support (73) is movably connected to the second component (3), and the moving member is in transmission connection with the first component (4); In the first state, the locking member restricts the moving member from moving in a direction away from the connection end (41), and the moving member can only move in a direction close to the connection end (41) to restrict the second component (3) from sliding in a direction away from the connection end (41); in the second state, the locking member restricts the moving member from moving in a direction close to the connection end (41), and the moving member can only move in a direction away from the connection end (41) to restrict the second component (3) from sliding in a direction close to the connection end (41).

3. The support device according to claim 2, characterized in that, The moving member is a ratchet wheel (71), the locking member is a ratchet pawl (72), the ratchet wheel (71) and the ratchet pawl (72) are respectively rotatably installed on the support (73), and the ratchet wheel (71) rotates when the second component (3) slides relative to the first component (4); when switching from the first state to the second state, the transmission direction of the ratchet wheel (71) and the first component (4) is reversed; In the first state, the pawl (72) unidirectionally locks the ratchet wheel (71), the pawl (72) restricts the ratchet wheel (71) from rotating in the first rotation direction, and the ratchet wheel (71) can only rotate in the second rotation direction to move in the direction close to the connection end (41); in the second state, the pawl (72) unidirectionally locks the ratchet wheel (71), the pawl (72) restricts the ratchet wheel (71) from rotating in the first rotation direction, and the ratchet wheel (71) can only rotate in the second rotation direction to move in the direction away from the connection end (41); wherein, the first rotation direction and the second rotation direction are opposite to each other.

4. The support device according to claim 3, characterized in that, The ratchet wheel (71) has an internal gear ring (711), and the internal gear ring (711) is provided with a plurality of ratchet teeth spaced apart along its circumferential direction, and a ratchet tooth groove is formed between adjacent ratchet teeth; The support (73) includes a column body (731), the internal gear ring (711) is sleeved on the outer periphery of the column body (731), an installation groove (732) is provided on the column body (731), an opening of the installation groove (732) exposes the outer peripheral surface of the column body (731), the pawl (72) is rotatably installed in the installation groove (732), and the pawl (72) can extend out from the opening of the installation groove (732) and be engaged with the ratchet tooth groove.

5. The support device according to claim 4, characterized in that, The rotation axis of the ratchet wheel (71) is parallel to the rotation axis of the pawl (72).

6. The support device according to claim 4, characterized in that, It further includes an outer support elastic member (74), the outer support elastic member (74) is installed in the installation groove (732) and abuts between the side wall of the installation groove (732) and the pawl (72), and the elastic force of the outer support elastic member (74) makes the pawl (72) always have a tendency to rotate in the direction of engaging with the ratchet tooth groove.

7. The support device according to claim 4, characterized in that, A plurality of pawls (72) are provided, and the plurality of pawls (72) are spaced apart along the circumferential direction of the column body (731).

8. The support device according to claim 4, characterized in that, The support (73) further includes a connecting plate (733), the connecting plate (733) has a first surface and a second surface opposite to each other along the axial direction of the column body (731), one axial end of the column body (731) is fixed on the first surface, the other axial end of the column body (731) abuts against the first component (4), and the second surface is movably connected to the second component (3).

9. The support device according to claim 8, wherein Two ratchet wheels (71) are provided, including a first ratchet wheel (71A) and a second ratchet wheel (71B), the centers of the first ratchet wheel (71A) and the second ratchet wheel (71B) are symmetrical about the connection position between the second surface and the second component (3), and the helix directions of the ratchet tooth grooves on the first ratchet wheel (71A) and the second ratchet wheel (71B) are opposite; when the second component (3) slides relative to the first component (4), the rotation directions of the first ratchet wheel (71A) and the second ratchet wheel (71B) are opposite; There are two spaced column bodies (731), and the two column bodies (731) correspond to the two ratchets (71) one by one. At least one pawl (72) is rotatably mounted on each column body (731).

10. The support device according to claim 9, characterized in that, Both the first ratchet (71A) and the second ratchet (71B) have external tooth rings (712). The first component (4) includes a first rack (42) and a second rack (43) extending along the first direction. In the first state, the external tooth ring (712) of the first ratchet (71A) meshes with the first rack (42), the external tooth ring (712) of the second ratchet (71B) meshes with the second rack (43), and the second ratchet (71B) is closer to the connection end (41) than the first ratchet (71A). In the second state, the external tooth ring (712) of the second ratchet (71B) meshes with the first rack (42), the external tooth ring (712) of the first ratchet (71A) meshes with the second rack (43), and the second ratchet (71B) is closer to the connection end (41) than the first ratchet (71A).

11. The support device according to claim 4, characterized in that, Only one ratchet (71) is provided. The ratchet (71) has an external tooth ring (712). The first component (4) includes a third rack and a fourth rack extending along the first direction. In the first state, the external tooth ring (712) of the ratchet (71) meshes with the third rack. In the second state, the external tooth ring (712) of the ratchet (71) meshes with the fourth rack.

12. The support device according to any one of claims 2 to 11, characterized in that It further includes a torsion spring (75). One end of the torsion spring (75) is fixed on the second component (3), and the other end is fixed on the support (73). The switching device includes a traction rope (5) and a knob lock (6). The knob lock (6) is rotatably mounted on the door body (1). One end of the traction rope (5) is connected to and wound around the torsion spring (75), and the other end is wound around the knob lock (6). Rotate the knob lock (6) to contract or release the traction rope (5), thereby driving the torsion spring (75) to rotate, so that the support (73) rotates, causing the locking device (7) to switch between the first state and the second state.

13. The support device according to any one of claims 2 to 11, characterized in that The first component (4) includes a support shell. The support shell has a long groove extending along the first direction. The long groove has a mounting opening extending along the first direction. The locking device (7) is inserted into the long groove through the mounting opening. The second component (3) includes a sliding shell. The sliding shell covers the support shell and seals the mounting opening. One side of the support (73) along the opening direction of the mounting opening abuts against the bottom wall of the long groove, and the other side of the support (73) along the opening direction of the mounting opening abuts against the sliding shell.

14. The support device according to any one of claims 1 to 11, characterized in that The connection end (41) can rotate around a first rotation axis. The second component (3) can rotate around a second rotation axis. The first rotation axis is parallel to the second rotation axis, and the first rotation axis is perpendicular to the first direction.

15. A door body assembly, characterized in that, Comprising a door body (1) and a support device as described in any one of claims 1 to 14, the door body (1) is adapted to be rotatably mounted on the vehicle body frame (2) for opening or closing an opening and closing opening (21) on the vehicle body frame (2), and the connecting end (41) is rotatably connected to the opening and closing opening (21).

16. The door body assembly according to claim 15, characterized in that, Two support devices are provided, and one end of one of the second components (3) away from the connecting end (41) is rotatably connected to one side of the door body (1) along the rotation axis, and one end of the other second component (3) away from the connecting end (41) is rotatably connected to the other side of the door body (1) along the rotation axis.

17. A vehicle, characterized in that, Comprising a vehicle body frame (2) and a door body assembly as described in claim 15 or 16.

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