Door lock mechanism assembly of heavy truck

Abstract

The utility model relates to a heavy truck door lock mechanism assembly which comprises a lock body, an opening linkage arm, an inner opening arm, an inner locking arm and an opening connecting piece. The inner opening shaft body is sleeved with the inner opening connecting piece, a linkage part located between the two torsion arms of the inner opening torsion spring is formed on the inner opening connecting piece, a limiting protrusion is formed in the lock body, a limiting part matched with the limiting protrusion in an abutting mode is formed on the inner opening connecting piece, and an unlocking part matched with the limiting part in an abutting mode is formed on the inner opening arm. A first inclined section of the inner locking arm is rotationally connected with the inner opening connecting piece, a locking torsional spring is arranged between a second inclined section and the lock body, a vertical section of the inner locking arm is movably connected with the safety arm, and the opening linkage arm is connected with the inner opening arm through a transmission connecting rod. According to the heavy truck door lock mechanism assembly, the inner opening arm and the inner locking arm are linked through the inner opening connecting piece, so that the structure is simplified, and the operation when a truck door is opened is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of automotive door lock technology, and in particular to a heavy-duty truck door lock mechanism assembly. Background Technology

[0002] The car door lock assembly is used to cooperate with the latch on the vehicle body to lock the door when it is closed. In order to achieve anti-theft and security, a locking structure is set in the lock body to prevent the door from being opened at will. For example, the invention patent: integrated door lock for heavy trucks and light trucks (publication number: CN108019101B) discloses a door lock that can lock the lock body. However, in the structure of the above door lock, the inward opening rocker arm that realizes the inward opening function and the inward locking rocker arm that realizes the inward locking are two separate components that operate independently. There is no linkage between the two. When opening the door from the inside, the locking push rod needs to be driven by the inward locking rocker arm or electric mechanism to unlock, and then the inward opening rocker arm is used to open the door from the inside. The structure is relatively complex and the operation of opening the door is inconvenient.

[0003] To address the aforementioned problems, this utility model provides improvements. Utility Model Content

[0004] This utility model proposes a heavy-duty truck door lock mechanism assembly, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A heavy-duty truck door lock mechanism assembly includes a lock body, a ratchet plate, a stop pawl, an opening linkage arm, an inner opening arm, an inner locking arm, an outer opening arm, an outer locking arm, a safety arm, a safety linkage, and an electric drive structure. It also includes an inner opening connector. The inner opening arm is sleeved on an inner opening shaft formed within the lock body, and an inner opening torsion spring is disposed within the inner opening arm. The inner opening connector is sleeved on the inner opening shaft, and a linkage portion is formed on the inner opening connector between the two torsion arms of the inner opening torsion spring. The lock body has a limiting protrusion on one side of the inner opening connector. The inner opening connector has a limiting part that abuts against the limiting protrusion. The inner opening arm has an unlocking part that abuts against the limiting part. The inner locking arm is Y-shaped. The first inclined section of the inner locking arm is rotatably connected to the inner opening connector. A locking torsion spring is provided between the second inclined section and the lock body. The vertical section of the inner locking arm is movably connected to the safety arm. The opening linkage arm is connected to the inner opening arm through a transmission linkage.

[0007] Preferably, the inner opening arm has a stepped hole, and the inner opening connector has a snap-fit ​​sleeve that matches the stepped hole. After the snap-fit ​​sleeve passes through the stepped hole, it abuts against the end face of the stepped hole to axially limit the inner opening connector and the inner opening arm. The inner opening shaft is inserted into the snap-fit ​​sleeve.

[0008] Preferably, the inner opening connector has a waist hole, and the first inclined section of the inner locking arm has a first connecting post that passes through the waist hole.

[0009] Preferably, a first connecting hole is provided on the second inclined section of the inner locking arm, one end of the locking torsion spring is fixedly connected to the lock body, and the other end passes through the first connecting hole.

[0010] Preferably, the transmission link consists of a steel rope segment and an injection molding segment. The end of the steel rope segment is rotatably connected to the inner opening arm via a cylindrical fastener. The injection molding segment has an I-shaped cross-section, and the middle part of the injection molding segment is slidably held in the second connecting hole provided on the opening link arm.

[0011] Preferably, an anti-mislocking paddle is rotatably connected to the second inclined section of the inner locking arm, and a through hole is provided on the lock body on one side of the rotation path of the ratchet plate. The anti-mislocking paddle can be transmitted out of the through hole as the inner locking arm swings.

[0012] Preferably, the anti-locking paddle has a third connecting hole at its end, and a second connecting post is formed on the second inclined section of the inner locking arm that passes through the third connecting hole, thereby realizing the rotational connection between the anti-locking paddle and the second inclined section of the inner locking arm.

[0013] Preferably, the lock body has a guide groove located on one side of the end of the second connecting pile, and the end of the second connecting pile is held in the guide groove after passing through the third connecting hole.

[0014] In summary, the beneficial effects of this utility model are as follows:

[0015] 1. The inner opening arm and the inner locking arm are linked by the inner opening connector, which simplifies the structure of the lock body. The door can be unlocked and opened by pulling the inner opening cable twice, which makes it convenient to open the door.

[0016] 2. The anti-lock function is achieved by using an anti-locking paddle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention;

[0021] Figure 4 This is a structural schematic diagram of the inner opening arm and the inner opening connector in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the inner locking arm and the anti-mislocking lever in this utility model;

[0023] Figure 6 This is a schematic diagram of the internal locking arm in this utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the inner opening arm and the inner opening connector, which are rotatably mounted on the lock body in this utility model.

[0025] In the diagram: 1. Lock body; 2. Racket plate; 3. Stop pawl; 4. Opening linkage arm; 41. Second connecting hole; 5. Inner opening arm; 51. Unlocking part; 52. Step hole; 6. Inner locking arm; 61. First inclined section; 62. Second inclined section; 63. Vertical section; 64. First connecting post; 65. First connecting hole; 66. Second connecting post; 7. Outer opening arm; 8. Outer locking arm; 9. Safety arm; 10. Safety linkage. 11. Electric drive structure; 12. Internal opening connector; 121. Linkage part; 122. Limiting part; 123. Snap-fit ​​sleeve; 124. Waist hole; 13. Internal opening shaft; 14. Internal opening torsion spring; 15. Limiting protrusion; 16. Transmission connecting rod; 161. Steel rope section; 162. Injection molding section; 17. Anti-locking paddle; 171. Third connecting hole; 18. Through hole; 19. Guide groove; 20. Locking torsion spring; 21. Internal opening pull cable. Detailed Implementation

[0026] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] As shown in the figure, a heavy-duty truck door lock mechanism assembly includes a lock body 1, a ratchet plate 2, a stop pawl 3, an opening linkage arm 4, an inner opening arm 5, an inner locking arm, an outer opening arm 7, an outer locking arm 8, a safety arm 9, a safety linkage 10, an electric drive structure 11, and an inner opening connector 12. The inner opening arm 5 is sleeved on an inner opening shaft 13 formed inside the lock body 1, and an inner opening torsion spring 14 is provided inside the inner opening arm 5. The inner opening connector 12 is sleeved on the inner opening shaft 13, and a linkage part 121 is formed on the inner opening connector 12 between the two torsion arms of the inner opening torsion spring 14. The lock body 1 has a... A limiting protrusion 15 is located on one side of the inner opening connector 12. A limiting part 122 is formed on the inner opening connector 12 to abut against the limiting protrusion 15. An unlocking part 51 is formed on the inner opening arm 5 to abut against the limiting part 122. The inner locking arm 6 is rotatably disposed in the lock body 1 and is Y-shaped. The first inclined section 61 of the inner locking arm is rotatably connected to the inner opening connector 12. A locking torsion spring 20 is provided between the second inclined section 62 and the lock body 1. The vertical section 63 of the inner locking arm is movably connected to the safety arm 9. The opening linkage arm 4 and the inner opening arm 5 are connected by a transmission linkage 16.

[0028] Specifically, the inner opening arm 5 and the inner opening connector 12 are rotatably sleeved on the inner opening shaft: the inner opening arm 5 has a stepped hole 52, and the inner opening connector 12 has a snap-fit ​​sleeve 123 that matches the stepped hole 52. The snap-fit ​​sleeve 123 passes through the stepped hole 52 and abuts against the end face of the stepped hole 52 to axially limit the inner opening connector 12 and the inner opening arm 5. The inner opening shaft 13 passes into the snap-fit ​​sleeve 123. Through the cooperation between the snap-fit ​​sleeve 123 and the stepped hole 52, the inner opening connector 12 can achieve stable relative rotation with the inner opening arm 5, ensuring the stability during transmission.

[0029] Specifically, the structure in which the first inclined section 61 of the inner locking arm is rotatably connected to the inner opening connector 12 is as follows: the inner opening connector 12 is provided with a waist hole 124, and the first inclined section 61 of the inner locking arm is provided with a first connecting post 64 that passes through the waist hole 124.

[0030] Specifically, the locking torsion spring 20 has a structure in which both ends are connected to the second inclined section 62 of the inner locking wall and the lock body 1 respectively: the second inclined section 62 of the inner locking arm is provided with a first connecting hole 65, one end of the locking torsion spring 20 is fixedly connected to the lock body 1, and the other end passes through the first connecting hole 65.

[0031] Specifically, the transmission link 16 is connected to the inner opening arm 5 and the opening linkage arm 4 respectively. The transmission link 16 is composed of a steel rope section 161 and an injection-molded section 162. The end of the steel rope section 161 is rotatably connected to the inner opening arm 5 through a cylindrical fastener. The injection-molded section 162 has an I-shaped cross-section and the middle part of the injection-molded section 162 is slidably held in the second connecting hole 41 provided on the opening linkage arm 4. The transmission link 16 with the above structure facilitates the operation during door lock assembly.

[0032] In the above structure, the arrangement of the ratchet plate 2, the stop pawl 3, the opening linkage arm 4, the outer opening arm 7, the outer locking arm 8, the safety arm 9, the safety link 10, and the electric drive structure 11 within the lock body 1, as well as their interrelationships, have been fully described in the prior art and will not be elaborated here. When the outer locking arm 8 or the electric drive structure 11 drives the safety arm 9 to rotate, causing the safety link 10 to slide, the stop pawl 3 is locked by the misalignment of the end of the safety link 10 with the stop pawl 3 (i.e., the action of the opening linkage arm 4 cannot drive the stop pawl 3 to move), thus locking the ratchet plate. Figure 1As shown, the rotation of the safety arm 9 causes the inner locking arm to swing counterclockwise. The inner locking arm 6, through the cooperation of the first connecting post 64 and the waist hole 124, causes the inner opening connecting piece 12 to rotate clockwise. The inner opening arm 5, connected to the inner opening pull line 21, is kept stationary by the limit of the inner opening pull line 21, causing the inner opening connecting piece 12 to rotate relative to the inner opening arm 5, thereby twisting the inner opening torsion spring 14 through the linkage part 121. The limiting part 122 rotates with the inner opening connecting piece 12 and abuts against the unlocking part 51. At the same time, the second tilting arm swings with the inner locking arm 6. The inner locking torsion spring 20 is twisted, and under its action, the second tilting arm is held in the position after rotation and locking. When the inner opening cable 21 is pulled to open the door lock, the first pull of the inner opening cable 21 causes the inner opening arm 5 to rotate counterclockwise. The inner opening arm 5, through the unlocking part 51, abuts against the limiting part 122, causing the inner opening connector 12 to rotate counterclockwise. The inner opening connector 12 causes the inner locking arm 6 to swing clockwise. The inner locking arm 6 causes the safety arm 9 to rotate, thereby unlocking (specific unlocking...). The process and working principle have been fully disclosed in existing technology and will not be repeated here. During the rotation or swing of the inner opening connector 12 and the inner locking arm 6, the torsioned inner opening torsion spring 14 and the inner locking torsion spring 20 reset, causing the inner opening connector 12 and the inner locking arm 6 to rotate or swing rapidly, achieving rapid unlocking. During the unlocking process, the inner opening arm 5 drives the opening linkage arm 4 to rotate freely through the transmission link 16, making it impossible to open the car door. Then, the inner opening cable 21 is pulled a second time, causing the inner opening arm 5 to rotate, and the inner opening connector... The component 12 is kept stationary by the limiting part 122 and the limiting protrusion 15, which keeps the inner locking arm 6 and the safety arm 9 in the unlocked position. At this time, the inner opening arm 5 drives the opening linkage arm 4 to rotate through the transmission link 16, thus opening the car door. It can be seen that in the above structure, the inner opening arm 5 and the inner locking arm 6 are linked by the inner opening connector 12, which simplifies the structure of the lock body 1. Moreover, the unlocking and opening of the car door can be achieved by pulling the inner opening cable 21 twice, which facilitates the operation when opening the car door.

[0033] As a further preferred embodiment of the above structure, an anti-mislocking paddle 17 is rotatably connected to the second inclined section 62 of the inner locking arm, and a through hole 18 is provided on the lock body 1 on one side of the rotation path of the ratchet plate 2. The anti-mislocking paddle 17 can be transmitted out of the through hole 18 as the inner locking arm swings.

[0034] Specifically, the anti-locking lever 17 is rotatably connected to the second inclined section 62: the end of the anti-locking lever 17 is provided with a third connecting hole 171, and a second connecting post 66 is formed on the second inclined section 62 of the inner locking arm that passes through the third connecting hole 171, thereby realizing the rotatable connection between the anti-locking lever 17 and the second inclined section 62 of the inner locking arm.

[0035] In the above structure, when the ratchet plate 2 rotates to the door open position (i.e.) Figure 2 (The ratchet plate 2 is in the state after being rotated counterclockwise). The ratchet plate 2 is located on one side of the through hole 18 and blocks the transmission. When it is desired to lock by rotating the safety arm 9, the anti-locking paddle 17 cannot pass through the through hole 18 and is limited because the through hole 18 is blocked. This also limits the inner locking arm 6, and consequently limits the safety arm 9 so that it cannot rotate. Therefore, the door lock cannot be locked when the door is open, thus achieving the anti-locking function. When the door is closed, the ratchet plate 2 rotates to expose the through hole 18, allowing the anti-locking paddle 17 to pass through the through hole 18 under the action of the inner locking arm 6, and allowing the safety arm 9 to rotate to lock the door.

[0036] Additionally, the lock body 1 has a guide groove 19 located on one side of the end of the second connecting post 66. The end of the second connecting post 66 passes through the third connecting hole 171 and is held in the guide groove 19. The guide groove 19 and the second connecting post 66 cooperate to improve the stability of the second connecting post 66 when it moves with the inner locking arm 6, thereby improving the stability of the anti-mislocking paddle 17 when it moves and preventing the anti-mislocking paddle 17 from getting stuck during movement, thus ensuring that the anti-mislocking paddle 17 can stably perform the anti-mislocking function.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heavy truck door lock mechanism assembly, comprising a lock body (1), a ratchet card (2), a stop pawl (3), an opening linkage arm (4), an inner opening arm (5), an inner locking arm (6), an outer opening arm (7), an outer locking arm (8), a safety arm (9), a safety connecting rod (10) and an electric drive structure (11), characterized in that: Also include the inner open connector (12), the inner open arm (5) is sleeved in the inner open shaft body (13) formed in the lock body (1) and the inner open arm (5) is provided with the inner open torsion spring (14), the inner open connector (12) is sleeved on the inner open shaft body (13) and the inner open connector (12) is formed with the linkage (121) between the two torsion arms of the inner open torsion spring (14), the lock body (1) is formed with the limiting protrusion (15) on one side of the inner open connector (12), the inner open connector (12) is formed with the limiting portion (122) matched with the limiting protrusion (15), the inner open arm (5) is formed with the unlocking portion (51) matched with the limiting portion (122), the inner locking arm (6) is Y-shaped, the first inclined section (61) of the inner locking arm (6) is rotatably connected with the inner open connector (12), the second inclined section (62) is provided with the locking torsion spring (20) between the lock body (1), the vertical section (63) of the inner locking arm (6) is movably connected with the safety arm (9), the opening linkage arm (4) is connected with the inner open arm (5) through the transmission connecting rod (16).

2. The heavy duty truck door lock mechanism assembly of claim 1, wherein: The inner open arm (5) is provided with a stepped hole (52), the inner open connector (12) is formed with a clamping sleeve (123) matched with the stepped hole (52), the clamping sleeve (123) is passed through the stepped hole (52) and abuts on the end face of the stepped hole (52), so that the inner open connector (12) and the inner open arm (5) are axially limited, and the inner open shaft body (13) penetrates into the clamping sleeve (123).

3. The heavy duty truck door lock mechanism assembly of claim 2, wherein: The inner open connector (12) is provided with a waist hole (124), and the first connecting pile (64) is formed on the first inclined section (61) of the inner locking arm (6) and penetrates into the waist hole (124).

4. The heavy duty truck door lock mechanism assembly of claim 3, wherein: The second inclined section (62) of the inner locking arm (6) is provided with a first connecting hole (65), one end of the locking torsion spring (20) is fixedly connected to the lock body (1), and the other end penetrates into the first connecting hole (65).

5. The heavy duty truck door lock mechanism assembly of claim 4, wherein: The transmission connecting rod (16) is composed of a steel rope section (161) and an injection molding section (162), the end of the steel rope section (161) is rotatably connected to the inner open arm (5) through a cylindrical buckle, the cross section of the injection molding section (162) is in the shape of an I-beam, and the middle part of the injection molding section (162) is slidably retained in the second connecting hole (41) formed in the opening linkage arm (4).

6. The heavy duty truck door lock mechanism assembly of claim 5, wherein: The second inclined section (62) of the inner locking arm (6) is rotatably connected with the anti-mislock tab (17), the lock body (1) is provided with a through hole (18) on one side of the rotation path of the ratchet clamping plate (2), and the anti-mislock tab (17) can swing out of the through hole (18) with the inner locking arm (6).

7. The heavy duty truck door lock mechanism assembly of claim 6, wherein: The end of the anti-mislock tab (17) is provided with a third connecting hole (171), and the second connecting pile (66) is formed on the second inclined section (62) of the inner locking arm and penetrates into the third connecting hole (171), so as to realize the rotational connection between the anti-mislock tab (17) and the second inclined section (62) of the inner locking arm (6).

8. The heavy duty truck door lock mechanism assembly of claim 7, wherein: The lock body (1) is provided with a guide slot (19) at one side of the end of the second connecting stake (66), and the end of the second connecting stake (66) is kept in the guide slot (19) after passing through the third connecting hole (171).

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