CN215830237U

CN215830237U - Machinery vehicle door lock and vehicle

Info

Publication number: CN215830237U
Application number: CN202122133819.3U
Authority: CN
Inventors: 王海旭; 李大禹; 孙万来; 桂堂军; 王新; 张卓俊; 李孟华; 阎阔
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-02-15
Anticipated expiration: 2031-09-06

Abstract

The utility model relates to a mechanical vehicle door lock, which comprises a lock body assembly, a lock seat and an internal locking assembly. The lock body subassembly is including locking shell, handle, spring bolt and spring bolt push pedal, and the handle sets up in the lock shell outside, rotates the handle and can drive the spring bolt push pedal and drive the spring bolt and stretch out or contract to locking in the shell. The lock seat is arranged opposite to the lock body component and is provided with a lock groove. The inner locking assembly comprises an inner locking button, a safety pin pushing piece, a safety pin and a safety pin fixing piece, the inner locking button is rotationally fixed on the lock shell, the safety pin pushing piece is in transmission connection with the inner locking button, the safety pin fixing piece is fixed on the lock shell, and the safety pin penetrates through the safety pin fixing piece and can move along the axial direction of the safety pin. The inner locking button can be rotated to drive the safety pin pushing piece to push the safety pin, and the safety pin is clamped into the clamping groove formed in the lock tongue pushing plate. The mechanical vehicle door lock is strong in impact resistance, parts are not prone to being damaged due to impact, the vehicle door can be locked by locking the spring bolt push plate through the safety pin, and stability is strong.

Description

Machinery vehicle door lock and vehicle

Technical Field

The utility model relates to the technical field of lock structures, in particular to a mechanical vehicle door lock and a vehicle.

Background

With the development of automobile technology, various vehicles with different main application scenes appear. Compared with private cars, special vehicles face more complicated road conditions and often run in harsh environments, doors of the special vehicles are heavier, and the positions of the doors are often greatly impacted in bumping or other complex conditions.

In the prior art, a mechanical vehicle door lock realizes locking by matching a latch driving ratchet wheel with a pawl, and the latch, the ratchet wheel and the pawl of the vehicle door lock are easily damaged under the collision of a special vehicle in running, so that the reliability of the vehicle door lock is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide a mechanical door lock that can accommodate and withstand an impact in view of the above-described problems.

It is also necessary to provide a vehicle comprising the above-described mechanical door lock.

A mechanical vehicle door lock, comprising:

the lock body assembly comprises a lock shell, a handle, a bolt and a bolt push plate, wherein the handle is arranged outside the lock shell and is in transmission connection with the bolt push plate, at least part of the bolt is arranged in the lock shell, and the bolt can extend out or retract relative to the lock shell under the driving of the bolt push plate along with the operation of the handle;

the lock seat is arranged opposite to the lock body assembly and is provided with a lock groove, and the lock groove at least accommodates a part of the lock tongue extending out of the lock shell; and

the inner locking assembly comprises an inner locking button, a safety pin pushing piece, a safety pin and a safety pin fixing piece, the inner locking button is rotatably fixed on the lock shell and at least partially positioned outside the lock shell, the safety pin pushing piece is in transmission connection with the inner locking button, and the safety pin fixing piece is fixed on the lock shell and arranged between the safety pin pushing piece and the lock tongue push plate;

the safety pin penetrates through the safety pin fixing part in an axially movable mode, the lock tongue push plate is located on a moving path of the safety pin, a clamping groove is formed in the moving path of the safety pin, and the safety pin can be clamped into the clamping groove and fixed along with operation of the inner locking button.

According to the mechanical vehicle door lock, the lock tongue extends out and is clamped into the lock groove, so that the vehicle door can be fixed. The inner locking button is rotated to drive the safety pin pushing piece to push the safety pin to be clamped into the clamping groove, so that the lock tongue pushing plate is limited and cannot rotate, and the locking of the vehicle door is completed. The mechanical structure does not have a structure similar to a ratchet wheel and a pawl which need high matching degree and precision, so that the shock resistance is strong, parts are not easy to damage due to impact, the performance is stable and reliable, the lock tongue push plate can be locked by the safety pin, and the stability is strong.

In one embodiment, the inner locking button is rotatably fixed on the lock shell through a button shaft, and the safety pin pushing piece is a cam sleeved on the button shaft.

In one embodiment, the safety pin comprises a pushed end facing the safety pin pushing piece and a clamping end facing the bolt push plate; the locking end is an arc surface or a conical surface, and the safety pin is clamped along with the operation of the inner locking button and is abutted against the spring bolt push plate during the clamping.

In one embodiment, the internal locking assembly comprises a deadbolt and a cylinder block, the deadbolt is arranged in the lock shell and at least partially and controllably extends into or out of the lock slot; the lock cylinder shifting block is in transmission connection with the inner locking button and synchronously rotates with the safety pin pushing piece, so that the dead bolt extends or contracts relative to the lock shell.

In one embodiment, the deadbolt comprises a clamping body part which can be controlled to extend into the lock slot and a main body part which is always positioned in the lock shell, the main body part is respectively configured and formed with two toggle positions, namely an inner lock toggle position and an unlocking toggle position, at two ends of a rotation path of the lock cylinder toggle block, and the lock cylinder toggle block pushes the main body part to drive the clamping body part to extend into the lock slot when rotating to the inner lock toggle position; when the lock cylinder shifting block rotates to the unlocking shifting position, the main body part is pushed to drive the clamping body part to be separated from the lock groove.

In one embodiment, the internal locking assembly comprises a tongue-out limiting column and an internal locking torsion spring, the main body part is provided with a limiting moving groove extending along the self-expansion direction, the tongue-out limiting column is fixedly arranged on the lock shell and penetrates through the limiting moving groove, one end of the internal locking torsion spring is connected with the lock cylinder shifting block, and the other end of the internal locking torsion spring is rotatably wound and sleeved on the tongue-out limiting column.

In one embodiment, the lock base includes a plurality of buffer pieces, and the buffer pieces are arranged on the inner peripheral side of the lock groove.

In one embodiment, the lock body assembly comprises a spring bolt spring, a spring bolt push rod, a first limiting plate and a second limiting plate, the first limiting plate is fixed on the lock shell, one end of the spring bolt push rod is connected with the spring bolt, the other end of the spring bolt push rod is connected with the second limiting plate, the first limiting plate can be axially movably arranged in the penetrating mode, the spring bolt spring is sleeved on the spring bolt push rod, one end of the spring bolt spring is abutted to the spring bolt, the other end of the spring bolt spring is abutted to the first limiting plate, and the second limiting plate is close to one side of the spring bolt and abutted to the spring bolt push plate.

In one embodiment, the bolt pushing plate is composed of two sub pushing plates fixed to each other, a certain distance is reserved between the two sub pushing plates, the two sub pushing plates are abutted to the second limiting plate together, and the bolt pushing rod is connected with the second limiting plate through the distance between the bolt pushing rod and the second limiting plate.

A vehicle comprises at least one mechanical door lock.

Drawings

FIG. 1 is a schematic view of a mechanical vehicle door lock according to an embodiment of the present invention;

FIG. 2 is a schematic view of the interior of the mechanical vehicle door latch of FIG. 1;

FIG. 3 is a schematic view of another angular internal configuration of the mechanical vehicle door latch of FIG. 1;

fig. 4 is a schematic view of a lock seat structure of the mechanical vehicle door lock shown in fig. 1.

100. A mechanical vehicle door lock; 11. a lock case; 12. a handle; 121. an inner handle; 122. an outer handle; 123. a handle shaft; 124. a handle cover; 125. a handle torsion spring; 126. fixing a column; 127. a movable post; 13. a latch bolt; 131. a latch bolt spring; 132. a bolt push rod; 133. a first limit plate; 134. a second limiting plate; 14. a lock tongue push plate; 15. a lock body support block; 20. a lock seat; 21. locking the groove; 22. a buffer sheet; 30. an inner locking assembly; 31. an inner locking button; 311. a button shaft; 32. a cam; 33. a safety pin; 34. a safety pin fixing member; 35. dull tongue; 36. a lock cylinder shifting block; 37. a dead tongue limiting column; 38. the torsion spring is locked in the inner part.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 4, a mechanical vehicle door lock 100 according to an embodiment of the present invention includes a lock body assembly, a lock base 20, and an inner locking assembly 30. The lock body assembly and the lock base 20 are respectively installed on two parts to be locked, and the lock body assembly can perform locking operation and unlocking operation on the lock base 20 according to user operation. The inner locking member 30 is installed in the lock body member and is capable of performing a locking operation on the lock body member according to a user operation when the lock body member performs the locking operation on the lock holder 20.

Referring to fig. 1 and 2, in some embodiments, the lock assembly includes a lock housing 11, a handle 12, a bolt 13, and a bolt pushing plate 14, the handle 12 is disposed outside the lock housing 11 and is in transmission connection with the bolt pushing plate 14, the bolt 13 is at least partially disposed in the lock housing 11 and can extend or retract relative to the lock housing 11 under the driving of the bolt pushing plate 14 along with the operation of the handle 12, the handle 12 is in transmission connection with the bolt 13 through the bolt pushing plate 14, and the bolt pushing plate 14 can be driven to push the bolt 13 to retract into the lock housing 11 by rotating the handle 12.

In this embodiment, the handle 12 includes an inner handle 121 and an outer handle 122 disposed opposite to each other on both sides of the lock case 11, and a handle shaft 123 (shown in fig. 3). The handle shaft 123 is movably fixed on the lock case 11, and the inner handle 121 and the outer handle 122 are in transmission connection through the handle shaft 123. The bolt pushing plate 14 is sleeved on the handle shaft 123 and synchronously rotates along with the handle shaft 123 when external force acts on the inner handle 121 or the outer handle 122 and the handle shaft 123 rotates.

Referring to fig. 3, further, the lock body assembly further includes a handle cover 124 disposed on the handle shaft 123, the handle cover 124 is fixed on the outer panel of the door and covers the outer handle 122 when the door lock 100 is installed, and a sealing rubber pad is disposed inside the handle cover 124, thereby ensuring the sealing performance of the door lock. In other embodiments, the handle cover 124 may be disposed on the inner panel of the door and cover the inner handle 121, or only cover one of the inner handle 121 and the outer handle 122, as required, so as to improve the sealing performance of the door lock, which is not limited herein.

Further, the lock body assembly 10 further includes a handle torsion spring 125, a fixed post 126 and a movable post 127, wherein the fixed post 126 is fixed on the lock case 11, and the movable post 127 is fixed on the bolt pushing plate 14 and rotates synchronously with the bolt pushing plate 14 when an external force is applied to the inner handle 121 or the outer handle 122. One end of the handle torsion spring 125 abuts against the fixed post 126, and the other end abuts against the movable post 127. Thus, when the handle 12 (the inner handle 121 or the outer handle 122) is rotated, the movable post 127 rotates synchronously with the bolt pushing plate 14 and drives one end of the handle torsion spring 125 abutting against the bolt pushing plate to rotate, thereby gradually generating a restoring force. When the external force applied on the handle 12 disappears, the handle torsion spring 125 drives the corresponding inner handle 121 or outer handle 122 through the movable column 127 to be reset quickly, the transmission stability is strong, and meanwhile, better anti-seismic performance is provided for the handle 12.

In this embodiment, the handle torsion spring 125 is sleeved on the handle shaft 123 at the middle portion thereof. It is understood that in other embodiments, the middle portion of the handle torsion spring 125 is sleeved on other structures fixed relative to the lock housing 11, so as to fix the handle torsion spring 125 relative to the lock housing 11, which is not limited herein.

Referring to fig. 3 and 4, specifically, the lock body assembly further includes a bolt spring 131, a bolt pusher 132, a first limit plate 133, and a second limit plate 134. The first limit plate 133 is fixed on the lock case 11, one end of the bolt push rod 132 is connected with the bolt 13, the other end is connected with the second limit plate 134, and the bolt push rod 132 axially movably penetrates through the first limit plate 133, the bolt spring 131 is sleeved on the bolt push rod 132, one end of the bolt spring 131 abuts against the bolt 13, the other end abuts against the first limit plate 133, and one side of the second limit plate 134, which is close to the bolt 13, abuts against the bolt push plate 14. The handle 12 is rotated to drive the bolt pushing plate 14, the bolt pushing plate 14 pushes the second limiting plate 134, the second limiting plate 134 drives the bolt pushing rod 132 to drive the bolt 13 to move in the relative lock case 11, meanwhile, the bolt spring 131 between the first limiting plate 133 and the bolt 13 is compressed, and when the bolt pushing plate 14 does not apply external force to the second limiting plate 134, the bolt 13 is pushed by the bolt spring 131 to recover to the original position. The side of the bolt 13 facing the inner locking knob 31 is an inclined surface along the direction of the lock body assembly towards the lock base 20. The bolt 13 is in an extending state without any other external force, when the extending bolt 13 contacts the lock base 20 or the vehicle body, the force direction applied to the bolt 13 by door closing or inertia is perpendicular to the inclined plane, the force applied to the bolt 13 and pushing the bolt 13 to contract inwards can be decomposed to generate a force which is applied to the bolt 13 and pushes the bolt 13 to contract, when the bolt 13 reaches the position of the lock groove 21, the bolt 13 is respectively pushed to extend and clamp the lock groove 21 under the action of the bolt spring 131, and the vehicle door is automatically fixed.

Further, bolt push pedal 14 comprises two sub-push pedals that fix mutually, has the interval of certain distance between two sub-push pedals to jointly with second limiting plate 134 butt, bolt push rod 132 is connected with second limiting plate 134 through the interval between the two. So set up, can guarantee that spring bolt push pedal 14 can apply more balanced stable power to second limiting plate 134.

In this embodiment, the two sub-push plates are connected by the rivet column, and the rivet column connected to the two sub-push plates at the same time can serve as the movable column 127, and it can be understood that other connection modes can be adopted, and only the two sub-push plates need to be stably connected and a certain gap is left between the two sub-push plates, which is not specifically limited herein.

Referring again to fig. 1 and 2, in some embodiments, the inner locking assembly 30 includes an inner locking button 31, a safety pin pushing member, a safety pin 33, and a safety pin fixing member 34, the inner locking button 31 is rotatably fixed on the lock case 11 and at least partially located outside the lock case 11, the safety pin pushing member is in driving connection with the inner locking button 31, and the safety pin fixing member 34 is fixed on the lock case 11 and disposed between the safety pin pushing member 34 and the bolt pushing plate 14. The securing pin 33 is inserted into the securing pin holder 34 and is movable in its own axial direction relative to the securing pin holder 34. The bolt pushing plate 14 is provided with a clamping groove on the moving path of the safety pin 33, the safety pin 33 can be clamped into the clamping groove along with the operation of the inner locking button 31 and fixes the bolt pushing plate 14, a limiting effect is generated on the bolt pushing plate 14, and the bolt pushing plate 14 cannot rotate at the moment.

Specifically, the inner lock button 31 is rotatably fixed on the lock case 11 through a button shaft 311, the safety pin pushing member is a cam 32 sleeved on the button shaft 311, the cam 32 abuts against one end of the safety pin 33 far away from the bolt pushing plate 14, the abutting position changes along with the rotation of the cam 32, and the radius of the area where the cam 32 can abut against the safety pin 33 gradually increases along the circumferential direction. When the cam 32 rotates gradually with the inner locking button 31, the safety pin 33 is gradually pushed to be inserted into the slot due to the gradually increasing radius of the cam.

Further, the safety pin 33 includes a pushed end facing the safety pin pushing member and a locking end facing the tongue pushing plate 14, and the locking end is an arc surface or a conical surface and abuts against the tongue pushing plate 14 when the safety pin 33 is locked into the locking groove along with the operation of the inner locking button 31. When the inner lock button 31 drives the cam 32 to rotate in the direction of releasing the limit function of the lock tongue pushing plate 14, that is, in the direction opposite to the direction of abutting against the safety pin 33, the safety pin 33 loses the abutting against of the cam 32, and at this time, the lock tongue pushing plate 14 can be driven to rotate by rotating the handle 12 (the inner handle 121 or the outer handle 122), so that the safety pin 33 is pushed out from the slot by an oblique force generated on the surface abutting against the safety pin 33, and the limit function of the safety pin 33 on the lock tongue pushing plate 14 is released. It should be understood that other ways of releasing the limit function may also be adopted, for example, a return spring is installed on the safety pin 33, and the safety pin can be reset to be disengaged from the slot of the lock tongue pushing plate 14 after the cam 32 is lost, which is not limited in this respect.

In some embodiments, the internal locking assembly 30 further comprises a deadbolt 35 and a cylinder block 36, the deadbolt 35 being disposed within the housing 11 and controllably extending at least partially out of the housing 11, the cylinder block 36 being drivingly connected to the internal lock button 31 and being rotated in synchronism with the shear pin urging member to cause extension or retraction of the deadbolt 35 relative to the housing 11. The dead bolt 35 includes a clamping portion controllably extending into the lock slot 21 and a main portion located inside the lock case 11, and the main portion is respectively configured with two toggle positions, namely an inner lock toggle position and an unlocking toggle position, at two ends of a rotation path of the lock cylinder toggle block 36. The inner locking button 31 is rotated to drive the lock cylinder shifting block 36 to move between two shifting positions, and when the inner locking button 31 rotates to drive the safety pin pushing piece to push the safety pin 33 into the clamping groove, the inner locking button simultaneously drives the lock cylinder shifting block 36 to rotate to the inner locking shifting position, and the main body part is pushed to drive the clamping body part to extend into the locking groove 21 (shown in fig. 4). When the inner locking button 31 rotates in the other direction, the lock cylinder shifting block 36 is driven to rotate to the unlocking shifting position to push the main body part to drive the card body part to be separated from the lock slot 21. The inner locking button 31 is rotated to enable the dead bolt 35 to be inserted into the lock groove 21 or to be separated from the lock groove 21, so that inner locking or unlocking is achieved, the lock cylinder shifting block 36 and the safety pin pushing piece rotate synchronously, the inner lock and the safety pin 33 are clamped into the clamping groove to lock the lock bolt pushing plate 14, double safety is achieved, the vehicle door is fixed more reliably, the anti-bumping capability is high, and the performance is reliable.

Further, the inner locking assembly 30 includes a dead bolt limiting column 37 and an inner locking torsion spring 38, the main body portion is provided with a limiting moving slot extending along the self-extending direction, and the dead bolt limiting column 37 is disposed on the lock housing 11 and penetrates through the limiting moving slot. One end of the inner locking torsion spring 38 is connected with the lock core shifting block 36, and the other end is rotatably wound and sleeved on the dead bolt limiting column 37. The inner lock torsion spring 38 can rotate around the dead bolt limiting column 37, when the dead bolt 35 is in the extended state and the lock core shifting block 36 is in the inner lock shifting position, the inner lock torsion spring 38 is in the compressed state, and a force towards the outside of the lock shell is applied to the dead bolt 35 through the lock core shifting block 36, so that the dead bolt 35 can keep the extended state. The lock core shifting block 36 is rotated to enable the dead bolt 35 to be in a contracted state, the lock core shifting block 36 is located at an unlocking shifting position, at the moment, the internal lock torsion spring 38 is driven by the lock core shifting block 36 to rotate around the dead bolt limiting column 37, the rotated internal lock torsion spring 38 is also in a compressed state, but the force applied to the dead bolt 35 by the lock core shifting block 36 is changed into a force for pushing the dead bolt 35 inwards along with the rotation, so that the dead bolt 35 can keep in a contracted state. The movement of the dead tongue 35 is always limited by the dead tongue limiting column 37 through the limiting moving groove. The addition of the inner-locking torsion spring 38 can keep the state of the dead bolt 35 stable whether the dead bolt is locked or unlocked, which is beneficial to improving the working stability of the mechanical vehicle door lock 100.

Optionally, the lock body assembly further comprises a lock body supporting block 15, the lock body supporting block 15 is in an "E" shape and is fixed at one side of the inside of the lock shell 11 close to the lock base 20, and two inner concave parts are provided with guiding holes for the bolt 13 and the dead bolt 35 to pass through and extend out of the lock shell 11. The lock body supporting block 15 not only can improve the structural strength of the mechanical vehicle door lock 100, but also can play a good guiding role in the movement of the dead bolt 35 and the dead bolt 13, so that the extending direction positions of the dead bolt 35 and the dead bolt 13 are more stable, and the dead bolt is better matched with the lock groove 21.

Referring to fig. 1 and 4, in some embodiments, the lock base 20 is disposed opposite to the lock body assembly, and defines a lock slot 21, and the lock slot 21 at least partially accommodates a portion of the bolt 13 extending out of the lock housing 11.

Specifically, the lock case 20 includes a plurality of buffer pieces 22, and the buffer pieces 22 are disposed on the inner peripheral side of the lock groove 21. The buffer sheet 22 is made of rubber or other materials with certain elasticity and certain buffer effect, and the buffer sheet 22 is fixed by arranging a limiting structure in the lock groove 21. In this embodiment, four buffer pieces 22 are respectively disposed at the side of the locking slot 21 corresponding to the dead bolt 35 and the locking bolt 13 near the inside of the vehicle and the side near the outside of the vehicle. It is understood that the material and the number of the buffer sheet 22 can be set according to the requirement, and are not particularly limited herein. The buffer sheet 22 can prevent the bolt 13 and the dead bolt 35 from colliding with the lock seat 20 to cause damage, enhance the shock resistance of the door lock, reduce the noise generated by collision and improve the driving comfort.

In this embodiment, the lock base 20 further includes a plurality of adjusting washers, which are disposed at the bottom of the lock base 20 and fixed to the door frame, and have a contour identical to the bottom of the lock base 20. The same positions of the upper and lower ends of the lock seat 20 and the adjusting gasket are provided with mounting holes for fixing the lock seat 20 at the vehicle door through the adjusting gasket. The distance between the lock base 20 and the lock body assembly can be adjusted by increasing or decreasing the number of the adjusting gaskets so as to adapt to different doors and enhance the adaptability of the mechanical door lock 100.

In the mechanical door lock 100, the latch tongue 13 is extended and snapped into the lock groove 21 to fix the door. The inner locking button 31 is rotated to drive the safety pin pushing piece to push the safety pin 33 to be clamped into the clamping groove, so that the lock tongue pushing plate 14 is limited and cannot rotate, and the locking of the vehicle door is completed. The mechanical structure does not have a structure similar to a ratchet wheel and a pawl which need high matching degree and precision, so that the shock resistance is high, parts are not easy to damage due to impact, the performance is stable and reliable, the lock tongue push plate 14 is locked by the safety pin 33, the vehicle door can be locked, the vehicle door cannot be unlocked by rotating the handle 12, and the stability is high. The locking end of the safety pin 33 is a cambered surface or a conical surface, so that when the locking end is not held, the handle 12 is rotated to drive the bolt pushing plate 14 to push out the safety pin 33, and the locking is released. In addition, a dead bolt 35 is arranged, and the dead bolt 35 can extend into the lock groove 21 partially in a controlled manner, so that the inner lock and the safety pin 33 are clamped into the clamping groove to lock the bolt push plate 14, and double safety is realized, and the vehicle door is more reliably fixed. The handle torsion spring 125 and the inner lock torsion spring 38 are provided to improve the operational stability of the mechanical door lock 100.

An embodiment of the present invention further provides a vehicle including at least one mechanical door lock 100 as described above.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A mechanical vehicle door lock, comprising:

2. The mechanical vehicle door lock of claim 1, wherein the inner locking button is rotatably secured to the lock housing by a button shaft, and the safety pin pusher is a cam that fits over the button shaft.

3. The mechanical vehicle door lock of claim 2, wherein the shear pin includes a pushed end facing the shear pin pusher and a retaining end facing the bolt pusher; the locking end is an arc surface or a conical surface, and the safety pin is clamped along with the operation of the inner locking button and is abutted against the spring bolt push plate during the clamping.

4. The mechanical vehicle door lock of claim 1, wherein the internal locking assembly includes a deadbolt and a cylinder tumbler, the deadbolt being disposed within the lock housing and being at least partially controllably extendable into or disengageable from the lock slot; the lock cylinder shifting block is in transmission connection with the inner locking button and synchronously rotates with the safety pin pushing piece, so that the dead bolt extends or contracts relative to the lock shell.

5. The mechanical vehicle door lock of claim 4, wherein the deadbolt includes a body portion controllably extending into the lock slot and a body portion always located in the lock housing, the body portion being configured with two toggle positions, an inner lock toggle position and an unlock toggle position, respectively, at two ends of the lock cylinder toggle path, the lock cylinder toggle pushing the body portion to drive the body portion to extend into the lock slot when rotated to the inner lock toggle position; when the lock cylinder shifting block rotates to the unlocking shifting position, the main body part is pushed to drive the clamping body part to be separated from the lock groove.

6. The mechanical vehicle door lock of claim 5, wherein the inner locking assembly includes a tongue-in-line limiting column and an inner locking torsion spring, the main body portion defines a limiting moving slot extending along a self-expanding direction, the tongue-in-line limiting column is fixedly disposed on the lock housing and passes through the limiting moving slot, one end of the inner locking torsion spring is connected to the lock cylinder shifting block, and the other end of the inner locking torsion spring is rotatably wound around the tongue-in-line limiting column.

7. The mechanical vehicle door lock of claim 4, wherein the lock housing includes a plurality of bumper tabs disposed on an inner peripheral side of the lock slot.

8. The mechanical vehicle door lock of claim 1, wherein the lock body assembly includes a spring bolt spring, a spring bolt push rod, a first limiting plate and a second limiting plate, the first limiting plate is fixed on the lock case, one end of the spring bolt push rod is connected with the spring bolt, the other end of the spring bolt push rod is connected with the second limiting plate, and the spring bolt push rod can axially and movably penetrate through the first limiting plate, the spring bolt spring is sleeved on the spring bolt push rod, one end of the spring bolt spring is abutted against the spring bolt, the other end of the spring bolt spring is abutted against the first limiting plate, and one side of the second limiting plate, which is close to the spring bolt, is abutted against a spring bolt push plate.

9. The mechanical vehicle door lock of claim 8, wherein the bolt pushing plate is composed of two sub pushing plates fixed to each other, a certain distance is formed between the two sub pushing plates, the two sub pushing plates are abutted to the second limiting plate together, and the bolt pushing rod is connected to the second limiting plate through the distance between the two sub pushing plates.

10. A vehicle comprising at least one mechanical door lock according to any one of claims 1 to 9.