Middle sliding door limiting structure

Abstract

The invention 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 invention relates to the field of vehicle doors, and in particular to a middle sliding door limiting structure. Background Art

[0002] The VAN vehicle 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 in the figure abuts against the middle sliding door when the middle sliding door is opened to the maximum angle, thus limiting the middle sliding door. However, when the limit spring abuts against the middle sliding door, the bending part of the limit spring will undergo elastic deformation, and the durability of this limit spring is not high. After a period of use, it is easy to have insufficient limit due to the attenuation of the spring limit force. Secondly, some users open the car door with more force, causing the middle sliding door to open at a faster speed. At this time, the middle sliding door will have a strong impact with the limit spring, and there is also a risk of the spring sheet breaking, which will cause the middle sliding door to be unable to be limited.

[0003] Later, an automobile middle sliding door opening interlock mechanism assembly as disclosed in application number CN201711377236.7 appeared, including an interlock mechanism mounting base plate, which is installed on the interlock mechanism mounting bracket of the lower sliding groove of the middle door; a limit locking block, when the interlock mechanism is effective, the limit locking block pops up, and the lower arm of the middle door is limited 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 realizes automatic return of the locking block through the return torsion spring, and keeps 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, the locking block reduces the friction between 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, and the clip rotates flexibly on the locking block without getting stuck.

[0004] However, the above interlocking mechanism needs to drive the middle door interlocking cable through the rotation of the fuel tank door swing arm 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. Summary of the invention

[0005] The present invention is intended to provide a middle sliding door limiting structure 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 present invention adopts the following technical scheme: 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 cable 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 the present scheme 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, and 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, and 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 when 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 cooperation between the lower arm limit lock and the limit lock buckle in this solution is completed by the interaction force when the middle sliding door is opened, and the limit can be automatically performed without additional control, which can avoid the middle sliding door not being limited due to forgetting to lock. Moreover, the lower arm limit lock can be controlled to rotate in the opposite direction through the handle to automatically release the limit lock buckle, which is simple to operate.

[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; and the pull cable is used to rotate the limit block.

[0012] The beneficial effect of this solution is that the clamping block and the limiting block in this solution form a structure similar to a ratchet pawl in a natural state, so that the clamping block can only rotate after it abuts against the limiting lock buckle, and after passing the limiting lock buckle, it is reset in the opposite direction under the action of the first elastic member, thereby cooperating with the limiting lock buckle to limit the middle sliding door. If the limiting lock buckle wants to escape from the clamping block, the clamping block needs to continue to rotate in the opposite direction, but at this time the limiting block abuts against the clamping block, so that the clamping block cannot continue to rotate in the opposite direction, which makes it impossible for the limiting lock buckle to escape from the clamping block, that is, when the middle sliding door is subjected to a certain force, the limiting lock buckle will not be separated from the lower arm limiting lock, thereby further improving the limiting effect of the middle sliding door.

[0013] Furthermore, one end of the cable away from the handle is connected with 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 mounting space for the limit block and the snap-in block, so the limit block and the snap-in block do not need to be directly mounted on the door, so that the size of the snap-in block does not need to be very 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 with 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, and the operation is simple.

[0019] Furthermore, the first push rod and the second push rod are respectively located on two 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 open the rear door lock or the lower arm limit lock respectively. Specifically, when opening the middle sliding door, the handle is rotated toward the rear side of the vehicle, and the handle can finally drive the rear door lock cable through the second push rod to control the rear door lock to open; and when closing the middle sliding door, the handle is rotated toward the front side of the vehicle, and the handle can finally drive the cable through the first push rod to open the lower arm limit lock, which is easy to operate.

[0021] Further, 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 It is a three-dimensional diagram of a limit spring in the prior art;

[0024] Figure 2 A front view of an embodiment of the present invention;

[0025] Figure 3 for Figure 2 Rear view of

[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 coordination between the middle handle and the lower arm limit lock connecting the rotating arm;

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

[0032] Fig.10 It is a three-dimensional diagram of the limit lock in the embodiment of the present invention. 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 Fig.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 clamping block 5 is rotatably connected to the mounting bracket 2 through a latch, and a first elastic member 52 is provided between the clamping block 5 and the mounting bracket 2, and a clamping slot 51 with an opening facing the inside of the vehicle is provided on the clamping block 5. The limit lock buckle 12 is U-shaped and is mounted on the vehicle body through screws. Specifically, the limit lock buckle 12 is opposite to the right part of the vehicle door 1, and the left projection of the limit lock buckle 12 faces the connecting block 5, and when the middle sliding door slides to the right to the maximum angle, it abuts against the right side wall of the connecting block 5 and causes the connecting block 5 to rotate clockwise and be clamped into the clamping slot 51.

[0037] Combination Figure 5 As shown, the limit block 6 is located on the upper side of the clamping block 5. The limit block 6 in this embodiment is inverted V-shaped, and the left end of the limit block 6 is higher than the right end. The limit block 6 is rotatably matched with the mounting bracket 2 through a latch, and a third elastic member 61 is provided between the limit block 6 and the mounting bracket 2. The side wall of the clamping block 5 facing the limit block 6 is provided with a protrusion, and the right end of the limit block 6 abuts against the protrusion on the clamping block 5, so that the clamping block 5 can only rotate clockwise but not counterclockwise. The left end of the limit block 6 is hinged with a pull rod 41, and the pull rod 41 is connected to a cable 4, and the cable 4 is installed on the door 1 through a buckle.

[0038] Combination Figure 7 , Figure 8 and Fig. 9 As shown, the handle unit includes a handle 7, a lower arm limit lock connecting rotating arm 8 and a rear door lock connecting rotating 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 outer side of the vehicle door 1 and is hinged to the mounting seat 11, the lower arm limit lock connecting rotating arm 8 and the rear door lock connecting rotating 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 rotating arm 8 and the rear door lock connecting rotating 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] One end of the cable 4 away from the pull rod 41 is connected to the lower arm limit lock connecting arm 8, and the rear door lock connecting arm 9 is also connected to the existing rear door lock cable 3. The handle 7 is integrally injection molded with a first push rod 71 and a second push rod 72. The first push rod 71 and the second push rod 72 are respectively located on the left and right sides of the handle 7. The cross-sections of the first push rod 71 and the second push rod 72 in this embodiment are both E-shaped. The first push rod 71 is opposite to the upper end of the lower arm limit lock connecting arm 8, and is used to push the lower arm limit lock connecting arm 8 to rotate; the second push rod 72 is opposite to the rear door lock connecting arm 9, and is used to push the rear door lock connecting arm 9 to rotate.

[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, and 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 the maximum angle, the clamping block 5 collides with the limit lock buckle 12. Under the interaction force between the clamping block 5 and the limit lock buckle 12, the clamping block 5 rotates clockwise. When the right end of the clamping slot 51 passes over the limit lock buckle 12, the clamping block 5 is reset counterclockwise under the action of the first elastic member 52. At this time, the limit lock buckle 12 is clamped into the clamping slot 51. Due to the limiting effect of the limiting block 6, the clamping block 5 can no longer rotate counterclockwise, so the limit lock buckle 12 will not fall out of the clamping slot 51, so 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 the rotating arm 8 to the right, causing the lower arm limit lock connecting the rotating arm 8 to rotate clockwise. At this time, the lower arm limit lock connecting the 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, so that the limit lock buckle 12 disengages from the clamping groove 51 and no longer limits 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 is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope 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 required by 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 in that: The invention comprises a handle unit, a lower arm limit lock and a limit lock buckle, wherein 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, and the lower arm limit lock is connected with a first elastic member for resetting the lower arm limit lock; the handle unit comprises a handle and a lower arm limit lock connecting rotating arm, and 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 cable is connected between the lower arm limit lock connecting rotating arm and the lower arm limit lock.

2. A 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. A 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 with the limit block.

4. A middle sliding door limiting structure according to claim 3, characterized in that: A mounting bracket is provided, and the limit block and the clamping block are both arranged on the mounting bracket and are 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 for rotation. A fourth elastic member for resetting the rear door lock connecting arm is provided between the rear door lock connecting arm and the vehicle door. A second push rod for pushing the rear door lock connecting arm to rotate is fixed on the handle.

6. A 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 two sides of the rotation center of the handle.

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

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