Middle sliding door limiting structure

Abstract

The utility model relates to the field of vehicle doors, and particularly discloses a middle sliding door limiting structure. Comprising a handle unit, a lower arm limiting lock and a limiting lock catch, the lower arm limiting lock can rotate relative to an automobile door, the projection of the limiting lock catch in the automobile door sliding direction is located on the lower arm limiting lock and can push the lower arm limiting lock to rotate, and the lower arm limiting lock is connected with a first elastic piece used for resetting the lower arm limiting lock; the handle unit comprises a handle and a lower arm limiting lock connecting rotating arm, the handle and the lower arm limiting lock connecting rotating arm are both in rotating fit with the automobile door, and a second elastic piece used for enabling the lower arm limiting lock connecting rotating arm to reset is arranged between the lower arm limiting lock connecting rotating arm and the automobile door. A first push rod used for pushing the lower arm limiting lock connecting rotating arm to rotate is fixed to the handle, and an inhaul cable is connected between the lower arm limiting lock connecting rotating arm and the lower arm limiting lock. The middle sliding door limiting structure can limit the middle sliding door when the middle sliding door is opened to the maximum.

Description

Technical Field

[0001] The utility model relates to the field of vehicle doors, in particular to a middle sliding door limiting structure. Background Art

[0002] The VAN car includes a middle sliding door. In order to limit the sliding distance of the middle sliding door, a limit structure is also required. The traditional limit structure adopts the following method: Figure 1 The limit spring shown here contacts the center door when it is fully opened, securing it in place. However, when the limit spring contacts the door, the curved portion of the limit spring undergoes elastic deformation. This type of limit spring is not very durable and can easily lose its retaining force over time, leading to insufficient retaining. Furthermore, some users forcefully open the door, causing it to open quickly. This can create a significant impact between the door and the limit spring, creating the risk of the spring blade breaking, which could render the center door unrestricted.

[0003] Later, a vehicle sliding door opening interlock mechanism assembly as disclosed in application number CN201711377236.7 appeared, including an interlock mechanism mounting base, which is installed on the interlock mechanism mounting bracket in the lower slide groove of the middle door; a limit locking block, when the interlock mechanism is activated, the limit locking block pops up, and the lower arm of the middle door is restricted in displacement by the locking block; a rotating shaft pin, the locking block rotates around the rotating shaft pin to achieve opening and closing; a return torsion spring, the locking block automatically returns to its original position through the return torsion spring, keeping the locking block in a closed state, and the return torsion spring is provided with an anti-slip bending structure at the end of the locking block; a bushing, which reduces the friction between the locking block and the rotating shaft during rotation to prevent the torsion spring and the rotating shaft pin from sliding and producing abnormal noise; a clip, which is clamped on the locking block and connected to the interlock opening cable. The clip rotates flexibly on the locking block and cannot be stuck.

[0004] However, the above interlocking mechanism requires the rotation of the fuel tank door arm to drive the middle door interlocking cable to achieve the interlocking of the middle sliding door. When the fuel tank door of the fuel tank cover assembly does not need to be opened, the interlocking mechanism cannot be started. Utility Model Content

[0005] The utility model aims to provide a middle sliding door limiting structure, so as to solve the problem of limiting the middle sliding door when the middle sliding door is opened to the maximum.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a middle sliding door limit structure, including a handle unit, a lower arm limit lock and a limit lock buckle, the lower arm limit lock can rotate relative to the vehicle door, the projection of the limit lock buckle along the sliding direction of the vehicle door is located on the lower arm limit lock and can push the lower arm limit lock to rotate, the lower arm limit lock is connected with a first elastic member for resetting the lower arm limit lock; the handle unit includes a handle and a lower arm limit lock connecting rotating arm, the handle and the lower arm limit lock connecting rotating arm both cooperate with the rotation of the vehicle door, a second elastic member for resetting the lower arm limit lock connecting rotating arm is provided between the lower arm limit lock connecting rotating arm and the vehicle door, a first push rod for pushing the lower arm limit lock connecting rotating arm to rotate is fixed on the handle, and a pull rope is connected between the lower arm limit lock connecting rotating arm and the lower arm limit lock.

[0007] The beneficial effects of this program are:

[0008] The limit lock buckle in this solution is installed on the vehicle body. Since the limit lock buckle is opposite to the lower arm limit lock, when the middle sliding door slides to the maximum angle, the lower arm limit lock rotates under the interaction with the limit lock buckle, so that the limit lock buckle is stuck in the lower arm limit lock. Then the lower arm limit lock rotates in the opposite direction under the action of the first elastic member. The middle sliding door is limited by the lower arm limit lock and the limit lock buckle that cooperate with each other to prevent the middle sliding door from sliding too far and colliding with the rear structure or falling off the slide rail. At the same time, it can also prevent the middle sliding door from automatically closing forward, thereby avoiding the middle sliding door from pinching passengers.

[0009] Compared with the traditional limit spring, since the present solution limits the center sliding door by means of the lower arm limit lock and the limit lock buckle, and the lower arm limit lock and the limit lock buckle will not undergo large elastic deformation like the limit spring during limiting, it is not easy to have insufficient limiting or even failure to limit during use due to reduced durability, spring sheet breakage, etc.

[0010] Secondly, the lower arm limit lock and the limit lock catch in this solution work together through the interaction force when the middle sliding door is opened, automatically limiting the position without the need for additional control, thus preventing the middle sliding door from being unlocked due to forgetting to lock it. Furthermore, the lower arm limit lock can be controlled to rotate in the opposite direction through a handle, automatically releasing the limit lock catch, making operation simple.

[0011] Furthermore, the lower arm limit lock includes a limit block and a clamping block, the clamping block is opposite to the limit lock buckle, the first elastic member is connected to the clamping block, the limit block and the clamping block are abutted against each other and are used to limit the clamping block; the limit block is connected to a third elastic member for resetting the limit block; the pull cable is used to rotate the limit block.

[0012] The beneficial effect of this solution is that the engaging block and the limiting block in this solution form a ratchet-pawl-like structure in their natural state, so that the engaging block can only rotate after contacting the limiting lock catch. After passing the limiting lock catch, it resets in the opposite direction under the action of the first elastic member, thereby cooperating with the limiting lock catch to limit the center sliding door. If the limiting lock catch wants to disengage from the engaging block, the engaging block needs to continue to rotate in the opposite direction. However, at this time, the limiting block contacts the engaging block, preventing the engaging block from continuing to rotate in the opposite direction. This prevents the limiting lock catch from disengaging from the engaging block. In other words, even when the center sliding door is subjected to a certain force, the limiting lock catch will not separate from the lower arm limiting lock, thereby further improving the limiting effect of the center sliding door.

[0013] Furthermore, one end of the cable away from the handle is connected to a pull rod, and the pull rod is hinged to the limit block.

[0014] The beneficial effect of this solution is that when the cable in this solution drives the limit block to rotate through the pull rod, the pull rod can swing, so the bending amplitude of the cable is reduced, and the cable can better drive the limit block to rotate.

[0015] Furthermore, a mounting bracket is provided, and the limiting block and the clamping block are both provided on the mounting bracket and are both rotatably matched with the mounting bracket.

[0016] The beneficial effect of this solution is that the mounting bracket in this solution provides installation space for the limit block and the clamping block, so the limit block and the clamping block do not need to be directly installed on the car door, so that the size of the clamping block does not need to be large to cooperate with the limit lock.

[0017] Furthermore, the handle unit also includes a rear door lock connecting arm, which cooperates with the vehicle door to rotate. A fourth elastic member is provided between the rear door lock connecting arm and the vehicle door for resetting the rear door lock connecting arm. A second push rod is fixed on the handle for pushing the rear door lock connecting arm to rotate.

[0018] The beneficial effects of this solution are as follows: the rear door lock connecting arm in this solution is used to connect to the rear door lock cable that controls the opening of the rear door lock. At this time, the handle can simultaneously control the opening of the rear door lock and the lower arm limit lock, that is, opening and closing the door only need to be controlled by the handle, which is simple to operate.

[0019] Furthermore, the first push rod and the second push rod are respectively located on both sides of the rotation center of the handle.

[0020] The beneficial effect of this solution is that the handle can be rotated in different directions to respectively unlock the rear door lock or the lower arm limit lock. Specifically, when opening the middle sliding door, the handle is rotated toward the rear of the vehicle. At this time, the handle can finally drive the rear door lock cable through the second push rod to control the rear door lock to open. When closing the middle sliding door, the handle is rotated toward the front of the vehicle. At this time, the handle can finally drive the cable through the first push rod to open the lower arm limit lock, which is convenient to operate.

[0021] Furthermore, the cross-sections of the first push rod and the second push rod are E-shaped.

[0022] The beneficial effect of this solution is that the first push rod and the second push rod in this solution are stronger and less likely to deform during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A perspective view of a limit spring in the prior art;

[0024] Figure 2 It is a front view of an embodiment of the utility model;

[0025] Figure 3 for Figure 2 Rear view;

[0026] Figure 4 for Figure 2 A perspective view of the mounting bracket;

[0027] Figure 5 for Figure 4 A top view of the middle clamping block;

[0028] Figure 6 for Figure 5 A three-dimensional diagram of the middle clamping block;

[0029] Figure 7 for Figure 2 A perspective view of the middle handle unit;

[0030] Figure 8 for Figure 7 Schematic diagram of the middle handle and the lower arm limit lock connecting the rotating arm;

[0031] Figure 9 for Figure 7 A perspective view of the middle handle;

[0032] Figure 10 It is a three-dimensional diagram of the limiting lock in the embodiment of the present utility model. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The figure marks in the drawings of the specification include: vehicle door 1, mounting seat 11, limit lock buckle 12, mounting bracket 2, rear door lock cable 3, cable 4, pull rod 41, clamping block 5, clamping groove 51, first elastic member 52, limit block 6, third elastic member 61, handle 7, first push rod 71, second push rod 72, lower arm limit lock connecting rotating arm 8, rear door lock connecting rotating arm 9.

[0035] Example

[0036] The embodiment is basically as follows Figure 2 、 Figure 3 、 Figure 5 、 Figure 6 and Figure 10 As shown, a middle sliding door limit structure includes a handle unit, a lower arm limit lock, a limit lock buckle 12 and a mounting bracket 2. The mounting bracket 2 is mounted on the inner side wall of the door 1 by screws. Specifically, the mounting bracket 2 and the handle unit are both located at the left end of the door 1. The lower arm limit lock includes a limit block 6 and a clamping block 5. Figure 4 As shown, the connecting block 5 is rotatably connected to the mounting bracket 2 via a latch, with a first elastic member 52 disposed between the connecting block 5 and the mounting bracket 2. The connecting block 5 is provided with a connecting slot 51 opening toward the interior of the vehicle. The limiting latch 12 is U-shaped and mounted to the vehicle body via screws. Specifically, the limiting latch 12 faces the right portion of the vehicle door 1, with its leftward projection facing the connecting block 5. When the middle sliding door slides to the right to its maximum angle, it abuts against the right side wall of the connecting block 5, causing the connecting block 5 to rotate clockwise and engage into the connecting slot 51.

[0037] Combine Figure 5 As shown, the limit block 6 is located above the clamping block 5. In this embodiment, the limit block 6 is in an inverted V-shape, with the left end of the limit block 6 higher than the right end. The limit block 6 is rotatably engaged with the mounting bracket 2 via a latch, and a third elastic member 61 is provided between the limit block 6 and the mounting bracket 2. A protrusion is provided on the side wall of the clamping block 5 facing the limit block 6. The right end of the limit block 6 abuts against the protrusion on the clamping block 5, allowing the clamping block 5 to rotate only clockwise and not counterclockwise. A pull rod 41 is hinged to the left end of the limit block 6, which is connected to a cable 4. The cable 4 is mounted on the vehicle door 1 via a buckle.

[0038] Combine Figure 7 、 Figure 8 and Figure 9 As shown, the handle unit includes a handle 7, a lower arm limit lock connecting arm 8 and a rear door lock connecting arm 9. A mounting seat 11 is provided on the vehicle door 1, and the mounting seat 11 passes through the vehicle door 1. The handle 7 is located on the outside of the vehicle door 1 and is hinged to the mounting seat 11. The lower arm limit lock connecting arm 8 and the rear door lock connecting arm 9 are both located on the side of the vehicle door 1 facing the interior of the vehicle. The lower arm limit lock connecting arm 8 and the rear door lock connecting arm 9 are both rotatably matched with the mounting seat 11 through a pin, and the rotation center is perpendicular to the mounting seat 11. The lower arm limit lock connecting arm 8 is L-shaped and a second elastic member is provided between the mounting seat 11, and a fourth elastic member is provided between the rear door lock connecting arm 9 and the mounting seat 11. In this embodiment, the first elastic member 52, the second elastic member, the third elastic member 61 and the fourth elastic member are all torsion springs, which are respectively used to reset the clamping block 5, the lower arm limit lock connecting arm 8, the limit block 6 and the rear door lock connecting arm 9. In actual implementation, the first elastic member 52, the second elastic member, the third elastic member 61 and the fourth elastic member can also be coil springs.

[0039] The end of the cable 4, away from the pull rod 41, is connected to the lower arm limit lock connecting arm 8. The rear door lock connecting arm 9 is also connected to the existing rear door lock cable 3. A first push rod 71 and a second push rod 72 are integrally injection-molded on the handle 7. The first push rod 71 and the second push rod 72 are located on the left and right sides of the handle 7, respectively. In this embodiment, the first push rod 71 and the second push rod 72 have an E-shaped cross-section. The first push rod 71 opposes the upper end of the lower arm limit lock connecting arm 8 and is used to drive the lower arm limit lock connecting arm 8 for rotation. The second push rod 72 opposes the rear door lock connecting arm 9 and is used to drive the rear door lock connecting arm 9 for rotation.

[0040] The specific implementation process is as follows:

[0041] When the middle sliding door needs to be opened, the handle 7 is manually pulled to the right. Since the handle 7 is hinged to the mounting seat 11, the handle 7 rotates forward at this time, causing the second push rod 72 to push the rear door lock connecting arm 9 to the left. The rear door lock cable 3 can be pulled through the rear door lock connecting arm 9 to open the rear door lock; when the middle sliding door is opened to the maximum angle, the handle 7 is released, and the rear door lock connecting arm 9 rotates in the opposite direction and resets under the action of the fourth elastic member.

[0042] When the middle sliding door is opened to its maximum angle, the engaging block 5 collides with the limit lock 12. Due to the interaction between the engaging block 5 and the limit lock 12, the engaging block 5 rotates clockwise. When the right end of the engaging slot 51 passes over the limit lock 12, the engaging block 5 returns counterclockwise under the action of the first elastic member 52. At this time, the limit lock 12 is engaged in the engaging slot 51. Due to the restraining action of the limit block 6, the engaging block 5 cannot rotate counterclockwise any further. Therefore, the limit lock 12 will not disengage from the engaging slot 51, and the middle sliding door cannot slide to the left.

[0043] When it is necessary to close the middle sliding door to the left, the handle 7 is manually pulled to the left. At this time, the handle 7 rotates in the opposite direction, causing the first push rod 71 to push the upper part of the lower arm limit lock connecting rotating arm 8 to the right, causing the lower arm limit lock connecting rotating arm 8 to rotate clockwise. At this time, the lower arm limit lock connecting rotating arm 8 pulls the cable 4 upward, and the cable 4 drives the limit block 6 to rotate counterclockwise through the pull rod 41, so that the limit block 6 no longer resists the clamping block 5. At the same time, the leftward force applied to the middle sliding door by the handle 7 causes the clamping block 5 to overcome the elastic force of the first elastic member 52 and rotate counterclockwise, thereby causing the limit lock buckle 12 to disengage from the clamping groove 51 and no longer limit the middle sliding door. After the limit lock buckle 12 disengages, the clamping block 5 is reset under the action of the first elastic member 52.

[0044] The above description is merely an embodiment of the present invention, and the commonly known specific technical solutions and / or features of the solution are not described in detail here. It should be noted that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be considered as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection claimed in this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A middle sliding door limiting structure, characterized by: The lock assembly comprises a first spring, a second spring, and a second spring which is used to reset the lower arm limit lock when the handle is engaged.

2. The middle sliding door limiting structure according to claim 1, characterized in that: The lower arm limit lock includes a limit block and a clamping block, the clamping block is opposite to the limit lock buckle, the first elastic member is connected to the clamping block, the limit block and the clamping block are abutted against each other and are used to limit the clamping block; the limit block is connected to a third elastic member for resetting the limit block; the pull cable is used to rotate the limit block.

3. The middle sliding door limiting structure according to claim 2, characterized in that: One end of the pull cable away from the handle is connected with a pull rod, and the pull rod is hinged to the limit block.

4. The middle sliding door limiting structure according to claim 3, characterized in that: A mounting bracket is provided, and the limiting block and the clamping block are both provided on the mounting bracket and are both rotatably matched with the mounting bracket.

5. The middle sliding door limiting structure according to claim 1, characterized in that: The handle unit also includes a rear door lock connecting arm, which cooperates with the vehicle door to rotate. A fourth elastic member is provided between the rear door lock connecting arm and the vehicle door for resetting the rear door lock connecting arm. A second push rod is fixed on the handle for pushing the rear door lock connecting arm to rotate.

6. The middle sliding door limiting structure according to claim 5, characterized in that: The first push rod and the second push rod are respectively located on both sides of the rotation center of the handle.

7. The middle sliding door limiting structure according to claim 5, characterized in that: The cross-sections of the first push rod and the second push rod are E-shaped.

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