Linear motion type door lock opening mechanism

Abstract

The utility model provides a linear motion type door lock opening mechanism which comprises a ratchet wheel shaft, a pawl shaft and a pawl linkage arm shaft which are arranged in sequence, a ratchet wheel capable of rotating freely is sleeved on the ratchet wheel shaft, a lock bolt clamping groove is arranged on the ratchet wheel, a pawl capable of rotating freely is sleeved on the pawl shaft, and the pawl linkage arm shaft is arranged on the pawl shaft. The pawl linkage arm shaft is sleeved with a pawl linkage arm capable of rotating freely, the upper end of the pawl is meshed with the lower end of the ratchet wheel in a locking mode, and the lower end of the pawl is meshed with the upper end of the pawl linkage arm in a locking mode. A push rod is arranged on the side face of the lower end of the pawl linkage arm, and the inner end of the push rod can push the pawl linkage arm to rotate around the pawl linkage arm shaft. And a ratchet wheel return spring, a pawl return spring and a pawl linkage arm return spring are respectively sleeved on the ratchet wheel shaft, the pawl shaft and the pawl linkage arm shaft. The linear motion type door lock opening mechanism provided by the utility model realizes door lock opening by utilizing the linear motion of the button, is simple and convenient to operate and small in occupied space, and has the advantages of lightness, compactness, practicability and the like.

Description

Technical Field

[0001] The utility model relates to a door lock opening mechanism, in particular to a linear motion door lock opening mechanism. Background Art

[0002] In recent years, new energy vehicles have developed rapidly, impacting the traditional automobile industry and placing higher requirements on automobile door lock manufacturers. Traditional door lock opening devices are placed on a plane perpendicular to the lock ratchet and pawl, and are opened by rotating transmission, resulting in a large door lock volume, which is contrary to the concept of new forces in car manufacturing. How to design a lock body with stable performance, complete functions, but cost-saving, lightweight body, and easy operation is an urgent problem that every auto parts supplier needs to solve. Utility Model Content

[0003] The purpose of the utility model is to overcome the existing defects, provide a linear motion door lock opening mechanism, and solve the problem of large volume of the current rotary transmission door lock.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] A linear motion door lock opening mechanism comprises a ratchet shaft, a pawl shaft and a pawl linkage arm shaft arranged in sequence, the ratchet shaft is sleeved with a ratchet that can rotate freely, the ratchet is provided with a lock bolt slot, the pawl shaft is sleeved with a pawl that can rotate freely, the pawl linkage arm shaft is sleeved with a pawl that can rotate freely, the upper end of the pawl is locked and engaged with the lower end of the ratchet, and the lower end of the pawl is locked and engaged with the upper end of the pawl linkage arm; a push rod is provided on the side surface of the lower end of the pawl linkage arm, and the inner end of the push rod can push the pawl linkage arm to rotate around the pawl linkage arm shaft; the ratchet shaft, pawl shaft and pawl linkage arm shaft are respectively sleeved with a ratchet return spring, a pawl return spring and a pawl linkage arm return spring.

[0006] Furthermore, it includes a shell and a cover plate that can be relatively buckled to form an internal cavity, the two ends of the ratchet shaft, the pawl shaft and the pawl linkage arm shaft are respectively fixedly connected to the shell and the cover plate, the ratchet, pawl, pawl linkage arm and push rod are all located in the internal cavity, the shell is provided with a locking bolt inlet and outlet at the position corresponding to the ratchet, and the shell is provided with a pressing port at the position corresponding to the outer end of the push rod.

[0007] Furthermore, a guide sleeve is provided in the internal cavity at a position corresponding to the push rod, the guide sleeve is fixedly connected to the shell and the cover plate respectively, the push rod is located in the guide sleeve and can slide freely in the guide sleeve, and the guide sleeve is correspondingly connected to the pressing port.

[0008] Furthermore, a plurality of rivet shafts are arranged between the shell and the cover plate, and two ends of each rivet shaft are fixedly connected to the shell and the cover plate respectively.

[0009] Furthermore, a shock-absorbing block is provided at the connection between the rivet shaft and the cover plate.

[0010] Furthermore, a micro switch is arranged on the circumferential side of the pawl in the internal cavity, and the micro switch is connected to an external connector through a wiring harness.

[0011] Furthermore, the micro switch is fixed to the housing via a connecting assembly, and the connecting assembly consists of a cross recessed pan head screw, a spring washer and a flat washer.

[0012] Furthermore, the lower end of the ratchet linkage arm is hinged to the push rod via a connecting shaft, and the connecting shaft is parallel to the ratchet linkage arm axis.

[0013] Furthermore, one end of the connecting shaft is a limiting end, and the other end of the connecting shaft is sleeved with a gasket.

[0014] The utility model discloses a linear motion door lock opening mechanism, which utilizes the linear motion of a button to open the door lock, is easy to operate, occupies a small space, and has the advantages of being light, compact, practical, and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a main schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the main cross-sectional view of the utility model;

[0018] Figure 3 It is a schematic diagram of the explosion structure of the utility model. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] like Figure 1-3As shown, a linear motion door lock opening mechanism comprises a ratchet shaft 1, a pawl shaft 2 and a pawl linkage arm shaft 3 which are arranged in sequence from top to bottom, the ratchet shaft 1 is sleeved with a ratchet wheel 4 which can rotate freely, the ratchet wheel 4 is provided with a bolt slot, the pawl shaft 2 is sleeved with a pawl 5 which can rotate freely, the pawl linkage arm shaft 3 is sleeved with a pawl linkage arm 6 which can rotate freely, the upper end of the pawl 5 is locked and meshed with the lower end of the ratchet wheel 4, and the lower end of the pawl 5 is locked and meshed with the ratchet wheel 4. The upper end of the pawl linkage arm 6 is locked and engaged; a push rod 7 is provided on the side of the lower end of the pawl linkage arm 6, and the lower end of the pawl linkage arm 6 is hinged to the push rod 7 through a connecting shaft 8, and the connecting shaft 8 is parallel to the pawl linkage arm shaft 3. The inner end of the push rod 7 can push the pawl linkage arm 6 to rotate around the pawl linkage arm shaft 3; a ratchet return spring 9, a pawl return spring 10 and a pawl linkage arm return spring 11 are respectively provided on the ratchet shaft 1, the pawl shaft 2 and the pawl linkage arm shaft 3.

[0021] It includes a shell 12 and a cover plate 13 that can be relatively buckled to form an internal cavity. The two ends of the ratchet shaft 1, the pawl shaft 2 and the pawl linkage arm shaft 3 are respectively fixedly connected to the shell 12 and the cover plate 13. The ratchet 4, the pawl 5, the pawl linkage arm 6 and the push rod 7 are all located in the internal cavity. The shell 12 is provided with a locking bolt inlet and outlet at the position corresponding to the ratchet 4, and the shell 12 is provided with a pressing port at the position corresponding to the outer end of the push rod 7.

[0022] A guide sleeve 14 is provided at a position corresponding to the push rod 7 in the internal cavity. The guide sleeve 14 is fixedly connected to the shell 12 and the cover plate 13 respectively. The push rod 7 is located in the guide sleeve 14 and can slide freely in the guide sleeve 14. The guide sleeve 14 is correspondingly connected to the pressing port.

[0023] A micro switch 15 is provided on the circumferential side of the pawl 5 in the internal cavity, and the micro switch 15 is connected to an external connector through a wiring harness.

[0024] Working principle:

[0025] When unlocking is to be performed, the push rod 7 is pressed, the ratchet linkage arm 6 rotates counterclockwise around the ratchet linkage arm shaft 3, and the ratchet linkage arm 6 drives the ratchet 5 to rotate clockwise around the ratchet shaft 2. After the ratchet 5 rotates, the lock of the ratchet wheel 4 is released. Under the action of the ratchet return spring 9, the ratchet wheel 4 rotates clockwise around the ratchet shaft 1, so that the lock bolt slot is connected with the lock bolt inlet and outlet, thereby unlocking the door lock. When the ratchet 5 rotates, the micro switch 15 is triggered to output an unlocking signal to the outside.

[0026] After unlocking is completed, the push rod 7 is released, and the pawl linkage arm return spring 11 gives the pawl linkage arm 6 a force to rotate it clockwise around the pawl linkage arm shaft 3. The pawl linkage arm 6 releases the movement of the pawl 5, and the pawl return spring 10 gives the pawl 5 a force to rotate it counterclockwise around the pawl shaft 2. However, because the ratchet 4 is in the unlocked position, the pawl linkage arm 6 and the pawl 5 cannot rotate freely, so the locking cannot be completed. When locking, the lock bolt enters the lock bolt slot through the lock bolt inlet and outlet, pushing the ratchet 4 to rotate counterclockwise around the ratchet shaft 1, and cooperating with the pawl 5 rotating counterclockwise around the pawl shaft 2. When the two reach the locked meshing position, the locking is completed and the locking is achieved. At this time, the pawl 5 and the ratchet linkage arm 6 are reset, and the push rod 7 is pushed out and reset by the ratchet linkage arm 6.

[0027] Two rivet shafts 16 are arranged between the shell 12 and the cover plate 13 , and two ends of each rivet shaft 16 are fixedly connected to the shell 12 and the cover plate 13 , respectively, so as to improve the connection strength between the shell 12 and the cover plate 13 .

[0028] A shock absorbing block 17 is provided at the connection between the riveting shaft 16 and the cover plate 13 .

[0029] The micro switch 15 is fixed to the housing 12 via a connecting assembly 18 , which is composed of a cross recessed pan head screw, a spring washer and a flat washer.

[0030] One end of the connecting shaft 8 is a limit end, and the other end of the connecting shaft 8 is sleeved with a gasket 19.

[0031] The utility model discloses a linear motion door lock opening mechanism, which utilizes the linear motion of a button to open the door lock, is easy to operate, occupies a small space, and has the advantages of being light, compact, practical, and the like.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A linear motion door lock opening mechanism, characterized in that: The invention comprises a ratchet shaft, a pawl shaft and a pawl linkage arm shaft which are arranged in sequence, wherein the ratchet shaft is sleeved with a ratchet wheel which can rotate freely, the ratchet wheel is provided with a locking bolt slot, the pawl shaft is sleeved with a pawl which can rotate freely, the pawl linkage arm shaft is sleeved with a pawl linkage arm which can rotate freely, the upper end of the pawl is locked and meshed with the lower end of the ratchet wheel, and the lower end of the pawl is locked and meshed with the upper end of the pawl linkage arm; A push rod is provided on the side of the lower end of the ratchet linkage arm, and the inner end of the push rod can push the ratchet linkage arm to rotate around the ratchet linkage arm axis; The ratchet shaft, the pawl shaft and the pawl linkage arm shaft are respectively sleeved with a ratchet return spring, a pawl return spring and a pawl linkage arm return spring; The lower end of the ratchet pawl linkage arm is hinged to the push rod through a connecting shaft, and the connecting shaft is parallel to the ratchet pawl linkage arm axis.

2. A linear motion door lock opening mechanism according to claim 1, characterized in that: It includes a shell and a cover plate that can be relatively buckled to form an internal cavity, the two ends of the ratchet shaft, the pawl shaft and the pawl linkage arm shaft are respectively fixedly connected to the shell and the cover plate, the ratchet, pawl, pawl linkage arm and push rod are all located in the internal cavity, the shell is provided with a locking bolt inlet and outlet at a position corresponding to the ratchet, and the shell is provided with a pressing port at a position corresponding to the outer end of the push rod.

3. A linear motion door lock opening mechanism according to claim 2, characterized in that: A guide sleeve is provided in the internal cavity at a position corresponding to the push rod, the guide sleeve is fixedly connected to the shell and the cover plate respectively, the push rod is located in the guide sleeve and can slide freely in the guide sleeve, and the guide sleeve is correspondingly connected to the pressing port.

4. A linear motion door lock opening mechanism according to claim 2, characterized in that: A plurality of rivet shafts are arranged between the shell and the cover plate, and two ends of each rivet shaft are fixedly connected to the shell and the cover plate respectively.

5. A linear motion door lock opening mechanism according to claim 4, characterized in that: A shock absorbing block is arranged at the connection between the riveting shaft and the cover plate.

6. A linear motion door lock opening mechanism according to claim 2, characterized in that: A micro switch is arranged on the circumferential side of the pawl in the internal cavity, and the micro switch is connected to an external connector through a wiring harness.

7. A linear motion door lock opening mechanism according to claim 6, characterized in that: The micro switch is fixed to the housing through a connecting assembly, which is composed of a cross-slot pan head screw, a spring washer and a flat washer.

8. The linear motion door lock opening mechanism according to claim 1, characterized in that: One end of the connecting shaft is a limiting end, and the other end of the connecting shaft is sleeved with a gasket.

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