Back door lock and vehicle

Abstract

The utility model relates to the technical field of automobile doors, and particularly provides a back door lock and an automobile. The back door lock comprises a locking piece arranged on a door frame and a locking matching piece arranged on a back door corresponding to the locking piece. The locking piece comprises a base fixedly arranged on the door frame, a driving mechanism and a locking block, wherein the driving mechanism and the locking block are arranged on the base. The locking matching piece comprises a connecting base fixedly arranged on the back door and a locking column arranged on the connecting base. When the back door is closed, the lock column can move to one side of the locking block, and the driving mechanism can drive the locking block to move and abut against the column face of the lock column. Threads are arranged on the cylindrical surface of the lock column, teeth are arranged on the abutting surface of the locking block, and when the locking block abuts against the lock column, the teeth and the threads are meshed so as to limit axial movement of the lock column. According to the back door lock, the connecting point capable of being flexibly separated and locked is arranged between the vehicle door and the door frame, and the problem that abnormal sound is generated due to the fact that the vehicle door shakes relative to the door frame is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile doors, and particularly relates to a rear door lock. In addition, the utility model also relates to a vehicle. Background Technique

[0002] In order to facilitate the entry and exit of personnel or the taking and placing of works, doors are generally provided on the side of the vehicle, and a rear door that opens laterally and has a spare tire hanging on it is also provided at the rear of the vehicle. The side doors generally adopt outward-opening flat doors, and are locked and fixed on the door frame through two hinges on one side and a door lock on the other side. The rear door mostly adopts an upward-opening outward-opening door or an outward-opening flat door; for off-road vehicles, the spare tire is generally placed by hanging the spare tire on the rear door. In this case, the rear door generally adopts an outward-opening flat door, and is also locked and fixed on the door frame through two hinges on one side and a door lock on the other side.

[0003] For the rear door with an automobile spare tire hanging on the back, two hinges and a door lock achieve three-point locking and fixing of the rear door on the door frame; however, when the rear door is in the closed state, the hinges and the door lock form a triangular structure to fix the rear door. Since there is only one fixed point (door lock connection position) on one side of the door lock (usually the left side, or it can also be the right side), the structure from this point to the upper corner of the door frame on the same side is a cantilever structure, and the center of gravity of the rear spare tire is at the rear of the rear door. Under the action of gravity, the rear door will generate a moment of backward outward turning, which will cause the upper left corner of the door body of the rear door to turn outward; especially on bumpy roads, the top of the rear door will repeatedly turn outward and recover, resulting in a slapping noise between the rear door and the door frame.

[0004] In this case, even if a common mechanical lock is added to the upper end of the side of the laterally-opening rear door lock, due to the large space occupied by the layout and the difficulty of installation; and the locking position of the common mechanical lock is fixed and cannot adaptively adjust the opening or locking state according to the door state. Summary of the Utility Model

[0005] In view of this, the utility model aims to propose a rear door lock to improve the problem of abnormal noise caused by the shaking of the rear door relative to the door frame.

[0006] To achieve the above object, the technical solution of the utility model is realized as follows:

[0007] A back door lock, comprising a locking piece arranged on a door frame, and a locking fitting corresponding to the locking piece and arranged on the back door; the locking piece comprises a base fixed on the door frame, and a driving mechanism and a locking block arranged on the base; the locking fitting comprises a connecting seat fixed on the back door, and a locking column arranged on the connecting seat; as the back door is closed, the locking column can move to one side of the locking block, and the driving mechanism can drive the locking block to move and abut against the cylindrical surface of the locking column;

[0008] The cylinder surface of the lock cylinder is provided with threads, and the abutting surface of the locking block is provided with teeth. When the locking block abuts against the lock cylinder, the teeth and the threads are engaged to limit the axial movement of the lock cylinder.

[0009] Furthermore, the base includes a mounting chassis and a connecting sleeve arranged on the mounting chassis, and the locking column can extend into the inner cavity of the connecting sleeve; a locking window is opened on the side wall of the connecting sleeve, and the locking block is arranged in the locking window; under the drive of the driving mechanism, the locking block can swing so that the abutting surface enters the inner cavity and abuts the locking column.

[0010] Furthermore, the abutting surface is constructed as an arc surface that follows the cylindrical surface of the locking cylinder, and the teeth are provided on the abutting surface in the form of internal threads.

[0011] Furthermore, the locking windows are two and are relatively arranged on the side wall of the connecting sleeve, and one locking block is arranged in each of the two locking windows.

[0012] Furthermore, the locking block is connected to a driving rod, and the driving rod is inserted through the base parallel to the axis of the connecting sleeve; the driving mechanism is transmission-connected to the driving rod, and can drive the driving rod to rotate around its own axis to drive the locking block to swing.

[0013] Furthermore, relative to one end connected to the locking block, a swing arm is provided at the other end of the driving rod; the driving mechanism drives the driving rod to rotate by driving the swing arm to swing.

[0014] Furthermore, the driving mechanism includes a driving motor, a lead screw connected to a power output shaft of the driving motor, and a driving frame slidably arranged on the base; a long hole is opened on the swing arm, and the driving frame includes a nut screwed on the lead screw, and a push rod connected to the nut; the push rod is inserted into the long hole, and as the lead screw rotates, the driving frame slides along the axial direction of the lead screw to drive the swing arm to swing.

[0015] Further, the driving mechanism is arranged on the side of the mounting chassis facing away from the connecting sleeve, and the axis of the lead screw intersects the axis of the connecting sleeve perpendicularly; one push rod is arranged on each side of the nut, and the two push rods drive the swing arms corresponding to the two locking blocks to swing respectively.

[0016] Compared with the prior art, the present utility model has the following advantages:

[0017] For the rear door lock of the present utility model, by arranging a driving mechanism on the locking member and a locking block that moves under the drive of the driving mechanism, the locking block can be in abutting cooperation with the lock post extending into the locking member by using its abutting surface, and the locking is achieved by the tooth engagement between the abutting surface and the cylindrical surface of the lock post, so that the flexible locking and detachment between the locking member and the locking and cooperating member are realized; the locking member and the locking and cooperating member are respectively arranged on the vehicle door and the door frame, so that a connection point that can be flexibly detached and locked is arranged between the vehicle door and the door frame, which helps to improve the problem of abnormal noise generated by the vehicle door shaking relative to the door frame.

[0018] In addition, a connecting sleeve is arranged on the base of the locking member, and a locking window is opened on the side wall of the connecting sleeve. The locking block is swingably arranged in the locking window, which can not only well clamp the lock post extending into the inner cavity, but also help to reduce the radial dimension of the whole base, thereby reducing the occupation of the internal space of the door frame sheet metal by the locking member.

[0019] Moreover, two locking blocks are symmetrically arranged with the axis of the lock post as the center. While the locking blocks are engaged and locked with the lock post, the two locking blocks also form a clamping and fixing of the lock post, which can further improve the locking and fixing effect of the locking member on the locking and cooperating member and prevent the locking and cooperating member from slipping out and disengaging from the locked state.

[0020] Another object of the present utility model is to provide a vehicle, the rear of which is provided with a side-opening rear door, and the rear door lock of the present utility model is arranged between the rear door and the door frame.

[0021] Further, the rear door lock is arranged at the top position on the side where the door lock of the rear door is located.

[0022] The vehicle of the present utility model has the technical advantages possessed by the above-mentioned rear door lock; moreover, when the rear door is closed, the rear door lock is in the locked state, adding a fixed connection point between the rear door and the door frame. Even if the rear door is affected by the gravity of the rear-mounted spare tire, when the vehicle bumps, the shaking of the rear door will be greatly reduced, thereby improving the problem of easy abnormal noise between the side-opening rear door and the door frame. Description of the Drawings

[0023] The accompanying drawings, which form a part of the present utility model, are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model. The front-back, up-down and other orientation words involved only represent relative positional relationships and do not constitute improper limitations on the present utility model. In the accompanying drawings:

[0024] Figure 1 is a schematic three-dimensional structure diagram of the rear door lock according to the embodiment of the present utility model;

[0025] Figure 2 is Figure 1 a schematic structure diagram of the rear door lock shown after hiding the base;

[0026] Figure 3 is Figure 1 an exploded view of the rear door lock shown;

[0027] Figure 4 is a schematic three-dimensional structure diagram of the base according to the embodiment of the present utility model;

[0028] Figure 5 is a schematic diagram showing the distribution of the connection positions between the rear door and the door frame according to the embodiment of the present utility model.

[0029] Explanation of reference numerals:

[0030] 1. Base; 10. Mounting chassis; 100. Mounting hole; 11. Connecting sleeve; 110. Inner cavity; 111. Locking window;

[0031] 2. Locking block; 21. Contact surface; 211. Teeth;

[0032] 3. Driving mechanism; 30. Driving motor; 31. Lead screw; 32. Driving frame; 320. Nut; 321. Push rod; 33. Driving rod; 330. Swing arm;

[0033] 4. Locking and fitting member; 40. Connecting seat; 41. Locking column; 410. Thread;

[0034] 50. Door body; 51. Rear-mounted spare tire; 52. Hinge connection position; 53. Door lock connection position. Detailed implementation manners

[0035] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.

[0036] In the description of the present utility model, it should be stated that if terms indicating orientation or positional relationship such as "upper, lower, left, right, front, rear, inner, outer" appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed or operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0037] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connector" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood in combination with specific situations.

[0038] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments.

[0039] Embodiment 1

[0040] This embodiment relates to a rear door lock, which can improve the problem of abnormal noise generated by the rear door shaking relative to the door frame; an exemplary structure thereof is as shown in Figure 1 , Figure 2 and Figure 3 .

[0041] Generally speaking, the rear door lock includes a locking member provided on the door frame and a locking cooperation member 4 correspondingly provided on the rear door. Among them, the locking member includes a base 1 fixed on the door frame, a driving mechanism 3 and a locking block 2 provided on the base 1; the locking cooperation member 4 includes a connecting seat 40 fixed on the rear door and a locking column 41 provided on the connecting seat 40. As the rear door closes, the locking column 41 can move to one side of the locking block 2, and the driving mechanism 3 can drive the locking block 2 to move and abut against the column surface of the locking column 41; at the same time, a thread 410 is provided on the column surface of the locking column 41, and teeth 211 are provided on the abutting surface 21 of the locking block 2. When the locking block 2 abuts against the locking column 41, the teeth 211 and the thread 410 are engaged to restrict the axial movement of the locking column 41.

[0042] It should be noted that based on the above overall design concept, the technical solution of the present utility model can adopt a variety of different specific implementation structures, forms or configuration sequences. For example, the above-mentioned rear door can also be a door on the side of the vehicle; and when the locking member is provided on the door, the locking cooperation member 4 can be provided on the door frame; when the locking cooperation member 4 is provided on the door, the locking member can be provided on the door frame. Taking the rear door as an example, it is preferred to fix the base 1 of the locking member on the door frame and fix the connecting seat 40 of the locking cooperation member 4 on the rear door.

[0043] For the parts required for the implementation of the overall solution but not involved in the above overall settings, reasonable and flexible designs can be made with reference to the mature setting means in the art, the actual situation during implementation, etc. The following specific implementation solutions of this embodiment are only one of the relatively better solutions among the many solutions that can be formed by the above various combinations and their variations. In actual implementation, those skilled in the art can make flexible adjustments and improvements in combination with the actual situation. Obviously, the many solutions that can be formed by the above various specific form combinations and their variations, as well as the specific implementation solutions of this embodiment, are all within the protection scope of the present utility model.

[0044] Specifically, in this embodiment, as Figure 3 and in combination with Figure 4 shown, the base 1 of this embodiment includes an installation chassis 10 and a connecting sleeve 11 provided on the installation chassis 10. The locking column 41 can extend into the inner cavity 110 of the connecting sleeve 11. At the same time, a locking window 111 is opened on the side wall of the connecting sleeve 11, and the locking block 2 is arranged in the locking window 111; driven by the driving mechanism 3, the locking block 2 can swing so that the abutting surface 21 enters the inner cavity 110 to abut against the locking column 41. By providing the connecting sleeve 11 on the base 1 of the locking member and opening the locking window 111 on the side wall of the connecting sleeve 11, and the locking block 2 is swingably arranged in the locking window 111, not only can the locking column 41 extending into the inner cavity 110 be well clamped, but also it is beneficial to reduce the radial dimension of the entire base 1, thereby reducing the occupation of the internal space of the door frame sheet metal by the locking member.

[0045] Of course, the abutting surface 21 on the locking block 2 can be in a planar shape or an arc shape, and the length of the teeth 211 on the abutting surface 21 can also be flexibly adjusted. However, in this embodiment, the abutting surface 21 is configured as an arc shape following the columnar surface of the locking column 41, and the teeth 211 are arranged on the abutting surface 21 in the form of internal threads. The abutting surface 21 is set as an arc shape following the columnar surface of the locking column 41, which can increase the contact area between the abutting surface 21 and the locking column 41, thereby increasing the tooth engagement area between the two, making the locking connection between the locking member and the locking cooperation member 4 more stable and reliable.

[0046] Based on the setting of the connecting sleeve 11, the locking windows 111 of this embodiment are two relatively arranged on the side wall of the connecting sleeve 11, and a locking block 2 is arranged in each of the two locking windows 111. With the axis of the locking column 41 as the center, the two locking blocks 2 are symmetrically arranged. When the locking blocks 2 and the locking column 41 are engaged and locked, the two locking blocks 2 also clamp and fix the locking column 41, which can further enhance the locking and fixing effect of the locking piece on the locking fitting 4, and prevent the locking fitting 4 from slipping out and leaving the locked state.

[0047] There are of course many different structural solutions available for the transmission connection between the locking block 2 and the driving mechanism 3. Figure 2 As shown, the locking block 2 is connected with a driving rod 33, and the driving rod 33 is arranged on the base 1 parallel to the axis of the connecting sleeve 11; at this time, the driving mechanism 3 is connected to the driving rod 33 by transmission, and can drive the driving rod 33 to rotate around its own axis to drive the locking block 2 to swing. It can be seen that the locking block 2 adopts the transmission form driven by the driving rod 33, which can greatly reduce the radial size of the entire locking piece; the driving rod 33 is arranged in the through-hole 100 formed on the wall of the mounting chassis 10 and the connecting sleeve 11, and the driving rod 33 can rotate in the through-hole 100. One end of the driving rod 33 is connected to the locking block 2, and the other end can be extended to the side of the mounting chassis 10 facing away from the connecting sleeve 11, so as to facilitate the transmission connection with the driving mechanism 3; in this way, the outside of the connecting sleeve 11 does not need to be provided with a transmission structure component, so that in the radial direction of the locking piece, the radial size of the part where the connecting sleeve 11 is located is very small, which can save the layout space of the locking piece.

[0048] Based on the above arrangement, a swing arm 330 is provided at the other end of the driving rod 33 relative to the end connected to the locking block 2; the driving mechanism 3 drives the driving rod 33 to rotate by driving the swing arm 330 to swing. The swing arm 330 swings the driving rod 33 to rotate, thereby driving the locking block 2 to swing. In the transmission path between the swing arm 330 and the locking block 2, a deceleration effect is effectively achieved. When driven by a motor, the swing speed of the locking block 2 can be reduced, and the swing torque of the locking block 2 can be increased.

[0049] There are of course many options for the arrangement of the drive mechanism 3; for example, a telescopic cylinder can be used as the driving form. Figure 3 As shown, the driving mechanism 3 includes a driving motor 30, a lead screw 31 connected to the power output shaft of the driving motor 30, and a driving frame 32 slidably disposed on the base 1. At the same time, a long hole is opened on the swing arm 330, and the driving frame 32 includes a nut 320 screwed on the lead screw 31 and a push rod 321 connected to the nut 320; and the push rod 321 is inserted into the long hole.

[0050] In this way, as the lead screw 31 rotates, the drive frame 32 will slide axially along the lead screw 31 on the base 1, driving the swing arm 330 to swing, and then driving the locking block 2 to swing into or out of the inner cavity 110 through the drive rod 33 (the swing-in and swing-out can be achieved by controlling the forward and reverse rotation directions of the drive motor 30). In the form of using the drive motor 30 to drive the lead screw 31, the lead screw 31 and the drive frame 32 realize the pushing and swinging of the swing arm 330 through the lead screw transmission structure. While reducing the transmission speed, it can further increase the driving torque for the swing of the locking block 2.

[0051] Based on the above settings, it is preferably to set the drive mechanism 3 of this embodiment on the side of the mounting chassis 10 facing away from the connecting sleeve 11, and at the same time, the axis of the lead screw 31 is perpendicular to and intersects with the axis of the connecting sleeve 11. A push rod 321 is provided on each side of the nut 320, and the two push rods 321 drive the swing arms 330 corresponding to the two locking blocks 2 to swing respectively. Based on the situation of setting two groups of locking blocks 2, the lead screw 31 in the drive mechanism 3 is arranged perpendicular to the connecting sleeve 11, and the axes of the lead screw 31 and the connecting sleeve 11 intersect, so that the lead screw 31 is arranged at the central position of the mounting chassis 10. In this way, a drive frame 32 can be well used to synchronously drive the two swing arms 330 on both sides to swing, and then drive the two groups of locking blocks 2 to synchronously perform the swing clamping action.

[0052] To sum up, for the rear door lock of this embodiment, by setting the drive mechanism 3 on the locking member and the locking block 2 that moves under the drive of the drive mechanism 3, the locking block 2 can be in abutting cooperation with the lock post 41 extending into the locking member by using its abutting surface 21, and the locking is achieved by the tooth engagement between the abutting surface 21 and the cylindrical surface of the lock post 41, enabling flexible locking and detachment between the locking member and the locking fitting 4; the locking member and the locking fitting 4 are respectively arranged on the vehicle door and the door frame, so that a connection point that can be flexibly detached and locked is set between the vehicle door and the door frame, which helps to improve the problem of abnormal noise generated by the vehicle door shaking relative to the door frame.

[0053] Embodiment Two

[0054] This embodiment relates to a vehicle. A side-opening rear door is provided at the rear of the vehicle, and the rear door lock provided in Embodiment One is provided between the rear door and the door frame; an exemplary structure of the rear door of this embodiment is as Figure 5 shown.

[0055] By providing the above-mentioned rear door lock between the rear door and its door frame, the technical advantages possessed by the above-mentioned rear door lock are achieved. Moreover, when the rear door is closed, the rear door lock is in a locked state, adding a fixed connection point between the rear door and the door frame. Even when the rear door is affected by the gravity of the spare tire 51 mounted on the back, the shaking of the rear door will be greatly reduced when the vehicle jolts, thereby improving the problem of easy abnormal noise generation between the side-opening rear door and the door frame.

[0056] Regarding the specific installation position of the rear door lock on the rear door, preferably, it is installed at Figure 5 the upper left corner of the door body 50 as shown; that is, the rear door lock is installed at the top position on the side of the rear door where the door lock is located.

[0057] For the case where there are two hinges on one side of the rear door and one door lock on the other side, when the door is closed, a three-point fixed connection form of two hinge connection positions 52 and one door lock connection position 53 as shown in Figure 5 is formed between the rear door and the door frame. The negative load point of the spare tire 51 mounted on the back is located outside the middle of the rear door. Since there is a lack of connection and fixation points at the top of the rear door, the top of the rear door on the door lock side is more likely to repeatedly turn outwards and recover when the vehicle jolts, thus generating abnormal noise due to shaking and slapping at this position. Based on the above situation, setting the rear door lock at the top position on the side of the rear door where the door lock is located, that is, setting the rear door lock at the position where the connection tightness needs to be strengthened the most, can better improve the problem of easy abnormal noise generation between the rear door and the door frame. Moreover, the rear door lock of the present utility model can be well controlled to achieve the disengaged and locked states to meet the requirements of door opening and closing control. During specific installation and arrangement, the locking and cooperating member 4 can be fixedly installed on the rear door, the locking member is arranged inside the sheet metal of the door frame, and an avoidance hole is provided on the sheet metal surface. When the rear door is closed, the locking post 41 can be inserted through the avoidance hole beside the locking block 2 of the locking member. Such a setting can keep the outer surfaces of the door and the door frame clean, and the installation and assembly operation is simple and feasible.

[0058] By adding a rear door lock with an adaptive stroke at the weak stiffness position of the rear door, when the vehicle is in a bumpy and harsh road condition, the rear door lock can be used to increase the connection and fixation points between the rear door and the door frame to achieve auxiliary locking, thereby better fixing the rear door and the door frame together as a whole, and improving the problems of door frame deformation and abnormal noise of the rear door due to shaking.

[0059] The above are only the preferred embodiments of the present utility model. The explanations of the detailed configuration, examples of specific structural settings, or descriptions of assembly connection methods are all for the need of full disclosure, so that those skilled in the art can better implement the present utility model, rather than to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A back door lock, characterized in that: It comprises a locking piece arranged on the door frame, and a locking matching piece (4) arranged on the back door corresponding to the locking piece; The locking element comprises a base (1) fixed on the door frame, and a driving mechanism (3) and a locking block (2) arranged on the base (1); the locking fitting (4) comprises a connecting seat (40) fixed on the back door, and a locking column (41) arranged on the connecting seat (40); as the back door is closed, the locking column (41) can move to one side of the locking block (2), and the driving mechanism (3) can drive the locking block (2) to move and abut against the cylindrical surface of the locking column (41); The cylindrical surface of the locking column (41) is provided with a thread (410), and the abutting surface (21) of the locking block (2) is provided with teeth (211). When the locking block (2) abuts against the locking column (41), the teeth (211) and the thread (410) engage with each other to limit the axial movement of the locking column (41).

2. The rear door lock according to claim 1, characterized in that: The base (1) comprises a mounting chassis (10) and a connecting sleeve (11) arranged on the mounting chassis (10), and the locking column (41) can extend into an inner cavity (110) of the connecting sleeve (11); A locking window (111) is provided on the side wall of the connecting sleeve (11), and the locking block (2) is arranged in the locking window (111); under the driving of the driving mechanism (3), the locking block (2) can swing so that the abutting surface (21) enters the inner cavity (110) and abuts against the locking column (41).

3. The rear door lock according to claim 2, characterized in that: The abutting surface (21) is constructed as an arcuate surface arranged in accordance with the cylindrical surface of the locking column (41), and the teeth (211) are arranged on the abutting surface (21) in the form of internal threads.

4. The rear door lock according to claim 2 or 3, characterized in that: The locking windows (111) are two and are arranged on the side wall of the connecting sleeve (11) opposite to each other, and one locking block (2) is arranged in each of the two locking windows (111).

5. The rear door lock according to claim 4, characterized in that: The locking block (2) is connected to a driving rod (33), and the driving rod (33) is arranged on the base (1) in parallel with the axis of the connecting sleeve (11); The driving mechanism (3) is transmission-connected to the driving rod (33), and can drive the driving rod (33) to rotate around its own axis to drive the locking block (2) to swing.

6. The rear door lock according to claim 5, characterized in that: Relative to one end connected to the locking block (2), the other end of the driving rod (33) is provided with a swing arm (330); the driving mechanism (3) drives the swing arm (330) to swing so as to drive the driving rod (33) to rotate.

7. The rear door lock according to claim 6, characterized in that: The driving mechanism (3) comprises a driving motor (30), a lead screw (31) connected to a power output shaft of the driving motor (30), and a driving frame (32) slidably disposed on the base (1); The swing arm (330) is provided with a long hole, and the driving frame (32) comprises a nut (320) screwed on the lead screw (31), and a push rod (321) connected to the nut (320); the push rod (321) is inserted into the long hole, and as the lead screw (31) rotates, the driving frame (32) slides along the axial direction of the lead screw (31) to drive the swing arm (330) to swing.

8. The rear door lock according to claim 7, characterized in that: The driving mechanism (3) is arranged on a side of the mounting chassis (10) facing away from the connecting sleeve (11), and the axis of the lead screw (31) intersects perpendicularly with the axis of the connecting sleeve (11); A push rod (321) is respectively provided on both sides of the nut (320), and the two push rods (321) respectively drive the swing arms (330) corresponding to the two locking blocks (2) to swing.

9. A vehicle, characterized in that: A side-opening tailgate is provided at the rear of the vehicle, and a tailgate lock according to any one of claims 1 to 8 is provided between the tailgate and the door frame.

10. The vehicle according to claim 9, characterized in that: The rear door lock is arranged at the top position of the side where the door lock of the rear door is located.

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