Door lock mechanism and vehicle door

Abstract

The utility model belongs to the technical field of door locks, and particularly relates to a door lock mechanism which comprises a door outer handle and a transmission system, the door outer handle comprises an outer shell, an outer handle body and a third shifting block, and the outer handle body is movably arranged on the outer shell and used for driving the third shifting block to rotate; the transmission system comprises a mounting plate, a limiting plate, a first rotating arm and a second rotating arm, the first rotating arm and the second rotating arm are rotationally arranged on the mounting plate, and the limiting plate is slidably arranged on the mounting plate and used for driving the first rotating arm and the second rotating arm to rotate at the same time; the transmission system further comprises a lever arm which is rotationally arranged on the mounting plate, and the middle of the lever arm acts on the limiting plate to drive the limiting plate to slide. When the outer handle body drives the third shifting block to rotate, the third shifting block acts on one end of the lever arm to drive the lever arm to rotate, and at the moment, the middle of the lever arm acts on the limiting plate to drive the limiting plate to slide. According to the door lock mechanism, the lever arm is designed, the lever principle is ingeniously utilized, and easy unlocking is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of door locks, and in particular relates to a door lock mechanism and a vehicle door. Background Art

[0002] With the development of economy and technology, recreational vehicles (RV) are chosen by more and more users, but how to occupy a place in the automotive industry and expand more markets is closely related to the handling feel of RVs. Most of the existing door handles are integrated with the car lock system. For example, the published patent applications CN108468485A, CN208236175U, CN208380339U, CN208830844U and CN208830845U all disclose car door lock systems. When unlocking, the outer handle body of the door handle is manually stretched outward, and the outer handle body drives the third and fourth dial heads to tilt forward. The fourth dial head drives the limit plate transmission column to move, so that the limit plate drives the first rotating arm to tighten the first pull rope, and the limit plate drives the second rotating arm to tighten the second pull rope. The upper lock body and the lower lock body connected to it are unlocked at the same time through the first and second pull ropes. Users reported that the car lock system is more laborious to unlock during use, and the experience is not good. The inventor found the problem through research and development tests. The two existing L-shaped first rotating arms and the second rotating arms are symmetrically cross-arranged, and the limit plate drives the first rotating arm and the second rotating arm at the same time. The fourth dial head directly drives the limit plate to move through the limit plate transmission column. This requires a lot of force to drive the first rotating arm and the second rotating arm to rotate at the same time to complete unlocking. Unlocking is more laborious and the experience is not good. Utility Model Content

[0003] In order to solve the problem in the prior art that it is laborious to unlock a vehicle door, resulting in a poor user experience, the utility model provides a door lock mechanism and a vehicle door.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: a door lock mechanism, including an outer door handle and a transmission system, wherein the outer door handle includes an outer shell, an outer handle body and a third dial head, wherein the outer handle body is movably arranged on the outer shell, and the outer handle body is used to drive the third dial head to rotate; the transmission system includes a mounting plate, a limit plate, a first rotating arm and a second rotating arm, wherein the first rotating arm and the second rotating arm are both rotatably arranged on the mounting plate, and the limit plate is slidably arranged on the mounting plate, and the limit plate is used to simultaneously drive the first rotating arm and the second rotating arm to rotate;

[0005] The transmission system also includes a lever arm, which is rotatably set on the mounting plate, and the middle part of the lever arm acts on the limit plate to drive the limit plate to slide; when the outer handle body drives the third dial head to rotate, the third dial head acts on one end of the lever arm to drive the lever arm to rotate, and at this time, the middle part of the lever arm acts on the limit plate to drive the limit plate to slide.

[0006] Preferably, a counterweight is provided at one end of the lever arm away from the third shifting head. The counterweight is simply and ingeniously arranged to ensure the balance of the lever arm and improve the reliability and stability of the lever arm.

[0007] Furthermore, the counterweight block is a cylinder, which is convenient for production and manufacturing, and the counterweight is stable and reliable.

[0008] Furthermore, the mounting plate is provided with a mounting bracket, the lever arm is rotatably arranged on the mounting bracket, a limited position is extended on the mounting bracket, and when the lever arm is reversely rotated and reset under the action of the counterweight, the lever arm abuts against the limited position. The reset of the lever arm and the counterweight are cleverly combined, the reset structure is simple, the operation is reliable and stable, and the cost is low.

[0009] Preferably, the end of the lever arm close to the third shifter extends to the third shifter with a first force-bearing portion, and the third shifter acts on the first force-bearing portion. The existing fourth shifter can be directly removed and the existing third shifter can be directly used, which cleverly utilizes the existing structure without opening a separate mold, greatly reducing R&D and manufacturing costs.

[0010] Furthermore, the first rotating arm and the second rotating arm are both L-shaped, the first rotating arm and the second rotating arm are symmetrically arranged, the limiting plate is provided with a first waist-shaped hole, the first rotating arm has a first rotating shaft extending toward the first waist-shaped hole, the second rotating arm is provided with a second waist-shaped hole, and the first rotating arm has a second rotating shaft extending toward the second waist-shaped hole. The first rotating arm and the second rotating arm have simple structures, reasonable and compact layouts, and reliable and stable operations.

[0011] Preferably, a third force-bearing portion extends from the limit plate, a second force-bearing portion extends from the middle of the lever arm toward the third force-bearing portion, and the second force-bearing portion acts on the third force-bearing portion. The overall layout of the lever arm and the limit plate is reasonable and compact, effectively avoiding interference from other structures, and operating reliably and stably.

[0012] Preferably, a first return spring is provided on the first rotating arm or the second rotating arm, and the other end of the first return spring is connected to the mounting plate; a second return spring is provided on the third dial head, and the second return spring is provided between the third dial head and the outer shell.

[0013] A vehicle door is provided with any one of the above-mentioned door lock mechanisms, and the vehicle door also includes an upper lock body and a lower lock body, the door lock mechanism is arranged between the upper lock body and the lower lock body, the first rotating arm is connected to the upper lock body through a first pull rope, and the second rotating arm is connected to the upper lock body through a second pull rope.

[0014] Beneficial effect: When unlocking, the door lock mechanism of the utility model stretches the outer handle body outward, and the outer handle body drives the third dial head to rotate. At this time, the third dial head acts on the first force-bearing part of the lever arm to drive the lever arm to rotate, and at the same time, the second force-bearing part of the lever arm acts on the third force-bearing part of the limit plate to drive the limit plate to slide. The sliding of the limit plate simultaneously drives the first rotating arm and the second rotating arm to rotate to unlock. The door lock mechanism is designed with a lever arm, which cleverly utilizes the lever principle to greatly reduce the force during unlocking. The user can easily unlock the door, and the user experience is greatly improved. The door lock mechanism has a simple structure, a clever overall design, and a compact layout. It utilizes the existing vehicle door lock system and does not require major changes to achieve the purpose of easy unlocking, greatly reducing R&D and manufacturing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the door lock mechanism of the utility model;

[0017] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure after the outer shell is removed;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the transmission system of the door lock mechanism of the utility model;

[0019] Figure 4 yes Figure 3 A schematic diagram of a three-dimensional structure from another angle;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the outer door handle of the door lock mechanism of the utility model;

[0021] In the figure: 1. outer door handle, 11. outer shell, 12. outer handle body, 13. third dial head, 14. second return spring, 2. transmission system, 21. mounting plate, 22. limit plate, 221. first waist-shaped hole, 222. third force-bearing part, 23. first rotating arm, 231. first rotating shaft, 232. second rotating shaft, 24. second rotating arm, 241. second waist-shaped hole, 25. lever arm, 251. counterweight, 252. first force-bearing part, 253. second force-bearing part, 26. mounting bracket, 261. limit point, 27. first return spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Example

[0024] like Figures 1 to 5 As shown, a door lock mechanism includes an outer door handle 1 and a transmission system 2, wherein the outer door handle 1 includes an outer shell 11, an outer handle body 12 and a third dial head 13, wherein the outer handle body 12 is movably arranged on the outer shell 11, and the outer handle body 12 is used to drive the third dial head 13 to rotate; the transmission system 2 includes a mounting plate 21, a limiting plate 22, a first rotating arm 23 and a second rotating arm 24, wherein the first rotating arm 23 and the second rotating arm 24 are both rotatably arranged on the mounting plate 21, and the limiting plate 22 is slidably arranged on the mounting plate 2 1, the limit plate 22 is used to simultaneously drive the first rotating arm 23 and the second rotating arm 24 to rotate; the transmission system 2 also includes a lever arm 25, which is rotatably arranged on the mounting plate 21, and the middle part of the lever arm 25 acts on the limit plate 22 to drive the limit plate 22 to slide; when the outer handle body 12 drives the third dial head 13 to rotate, the third dial head 13 acts on one end of the lever arm 25 to drive the lever arm 25 to rotate, and at this time, the middle part of the lever arm 25 acts on the limit plate 22 to drive the limit plate 22 to slide.

[0025] In order to ensure the balance of the lever arm 25 and improve the reliability and stability of the lever arm 25, in this embodiment, Figures 2 to 4As shown, a counterweight block 251 is provided at one end of the lever arm 25 away from the third dial head 13, and the counterweight block 251 in this embodiment is a cylinder; further, in this embodiment, a mounting bracket 26 is provided on the mounting plate 21, and the lever arm 25 is rotatably set on the mounting bracket 26, and a limited point 261 extends from the mounting bracket 26. When the lever arm 25 is reversely rotated and reset under the action of the counterweight block 251, the lever arm 25 abuts against the limit point 261.

[0026] In this embodiment, the door handle 1 in the background art can be directly used, such as Figure 1 , Figure 2 and Figure 5 As shown, the end of the lever arm 25 close to the third dial head 13 extends toward the third dial head 13 with a first force-bearing portion 252, the third dial head 13 acts on the first force-bearing portion 252, the third dial head 13 is provided with a second return spring 14, the second return spring 14 is arranged between the third dial head 13 and the outer shell 11, that is, only the fourth dial head in the background technology needs to be removed, and the third dial head 13 in the background technology is directly used, the existing structure is cleverly used, no additional mold is needed, and the R&D and manufacturing costs are greatly reduced; further, in this embodiment, as Figures 2 to 4 As shown, the first rotating arm 23 and the second rotating arm 24 are both L-shaped, and the first rotating arm 23 and the second rotating arm 24 are symmetrically arranged. A first return spring 27 is arranged on the first rotating arm 23 or the second rotating arm 24, and the other end of the first return spring 27 is connected to the mounting plate 21. A first waist-shaped hole 221 is opened on the limiting plate 22, and a first rotating shaft 231 extends from the first rotating arm 23 to the first waist-shaped hole 221. A second waist-shaped hole 241 is arranged on the second rotating arm 24. A second rotating shaft 232 extends from the first rotating arm 23 to the second waist-shaped hole 241; further, in the present embodiment, a third force-bearing portion 222 extends from the limiting plate 22, and a second force-bearing portion 253 extends from the middle portion of the lever arm 25 to the third force-bearing portion 222, and the second force-bearing portion 253 acts on the third force-bearing portion 222. The overall layout of the first rotating arm 23, the second rotating arm 24, the lever arm 25 and the limiting plate 22 of the present embodiment is reasonable and compact, which effectively avoids interference from other structures and operates reliably and stably.

[0027] A vehicle door is provided with the door lock mechanism of the present embodiment, and the vehicle door also includes an upper lock body and a lower lock body (not shown in the figure). The door lock mechanism is arranged between the upper lock body and the lower lock body. The first rotating arm 23 is connected to the upper lock body through a first pull rope, and the second rotating arm 24 is connected to the upper lock body through a second pull rope. The upper lock body, lower lock body, first pull rope and second pull rope of the present embodiment can be selected from existing ones.

[0028] Here’s how it works:

[0029] When unlocking, the outer handle body 12 is stretched outward, and the outer handle body 12 drives the third dial head 13 to rotate. At this time, the third dial head 13 acts on the first force-bearing part 252 of the lever arm 25 to drive the lever arm 25 to rotate. At the same time, the second force-bearing part 253 of the lever arm 25 acts on the third force-bearing part 222 of the limit plate 22 to drive the limit plate 22 to slide. The sliding of the limit plate 22 simultaneously drives the first rotating arm 23 and the second rotating arm 24 to rotate, so that the first rotating arm 23 tightens the first pull rope to unlock the upper lock body, and the second rotating arm 24 tightens the second pull rope to unlock the second lock body, completing the unlocking process.

[0030] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A door lock mechanism, characterized in that: The invention comprises an outer door handle (1) and a transmission system (2), wherein the outer door handle (1) comprises an outer shell (11), an outer handle body (12) and a third dial head (13), wherein the outer handle body (12) is movably arranged on the outer shell (11), and the outer handle body (12) is used to drive the third dial head (13) to rotate; the transmission system (2) comprises a mounting plate (21), a limiting plate (22), a first rotating arm (23) and a second rotating arm (24), wherein the first rotating arm (23) and the second rotating arm (24) are both rotatably arranged on the mounting plate (21), and the limiting plate (22) is slidably arranged on the mounting plate (21), and the limiting plate (22) is used to simultaneously drive the first rotating arm (23) and the second rotating arm (24) to rotate; The transmission system (2) further comprises a lever arm (25), wherein the lever arm (25) is rotatably arranged on the mounting plate (21), and the middle portion of the lever arm (25) acts on the limit plate (22) to drive the limit plate (22) to slide; when the outer handle body (12) drives the third dial head (13) to rotate, the third dial head (13) acts on one end of the lever arm (25) to drive the lever arm (25) to rotate, and at this time, the middle portion of the lever arm (25) acts on the limit plate (22) to drive the limit plate (22) to slide.

2. The door lock mechanism according to claim 1, characterized in that: A counterweight block (251) is provided at one end of the lever arm (25) away from the third shifting head (13).

3. The door lock mechanism according to claim 2, characterized in that: The counterweight block (251) is a cylinder.

4. The door lock mechanism according to claim 2, characterized in that: The mounting plate (21) is provided with a mounting bracket (26), the lever arm (25) is rotatably mounted on the mounting bracket (26), a limited position (261) extends from the mounting bracket (26), and when the lever arm (25) is reversely rotated and reset under the action of the counterweight (251), the lever arm (25) abuts against the limited position (261).

5. The door lock mechanism according to any one of claims 1 to 4, characterized in that: One end of the lever arm (25) close to the third shift head (13) is provided with a first force-bearing portion (252) extending toward the third shift head (13), and the third shift head (13) acts on the first force-bearing portion (252).

6. The door lock mechanism according to claim 5, characterized in that: The first rotating arm (23) and the second rotating arm (24) are both L-shaped, and the first rotating arm (23) and the second rotating arm (24) are symmetrically arranged. The limiting plate (22) is provided with a first waist-shaped hole (221), and a first rotating shaft (231) extends from the first waist-shaped hole (221) on the first rotating arm (23), and a second waist-shaped hole (241) is provided on the second rotating arm (24), and a second rotating shaft (232) extends from the first rotating arm (23) to the second waist-shaped hole (241).

7. The door lock mechanism according to any one of claims 1 to 4, characterized in that: A third force-bearing portion (222) extends from the limiting plate (22), a second force-bearing portion (253) extends from the middle of the lever arm (25) toward the third force-bearing portion (222), and the second force-bearing portion (253) acts on the third force-bearing portion (222).

8. The door lock mechanism according to any one of claims 1 to 4, characterized in that: A first return spring (27) is arranged on the first rotating arm (23) or the second rotating arm (24), and the other end of the first return spring (27) is connected to the mounting plate (21); a second return spring (14) is arranged on the third shifting head (13), and the second return spring (14) is arranged between the third shifting head (13) and the outer shell (11).

9. A vehicle door, characterized in that: The vehicle door is provided with a door lock mechanism according to any one of claims 1 to 8, and the vehicle door also includes an upper lock body and a lower lock body, the door lock mechanism is arranged between the upper lock body and the lower lock body, the first rotating arm (23) is connected to the upper lock body through a first pull rope, and the second rotating arm (24) is connected to the upper lock body through a second pull rope.

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