Locking mechanism and vehicle

Abstract

The utility model provides a locking mechanism. The locking mechanism comprises a wedge-shaped block, a locking block, a mounting frame, a connecting rod assembly and a driving piece, the wedge-shaped block is used for being fixed on a battery box body, and the wedge-shaped block is matched with the locking block; the mounting frame is used for being fixed on a frame and comprises a locking seat arranged close to the battery box body; the locking block is arranged in the locking seat in a sleeving manner; the connecting rod assembly is installed on the installation frame, one end of the connecting rod assembly is connected with the locking block, the other end is connected with the driving piece, and the connecting rod assembly has a dead point position in the rotating process; the driving piece drives the connecting rod assembly to rotate and drives the locking block to move in the locking seat, and when the connecting rod assembly rotates to the dead point position, the locking block abuts against the wedge-shaped block; and when the connecting rod assembly is separated from the dead point position, the locking block and the wedge-shaped block are released from abutting. The battery box is reliably fixed, components are not prone to abrasion and failure, the movement form is relatively simple, the locking state and the unlocking state can be switched only by driving the connecting rod assembly to rotate through the driving piece, and the failure rate is low.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and specifically relates to a locking mechanism and a vehicle. Background Art

[0002] Currently, new energy vehicle battery charging operates in two modes: charging and battery swapping. Large heavy-duty trucks have large batteries and slow charging speeds, so using a battery swapping system can reduce waiting times. In the new energy battery swapping sector, vehicle battery packs are often packaged in a whole-box packaging technology, with the battery box placed on the vehicle frame. When replacing the battery, the entire battery box is hoisted and replaced, requiring a locking mechanism on the vehicle frame to securely secure the battery box.

[0003] In the existing technology, the battery locking mechanism mainly relies on the rolling friction between the locking mechanism and the battery case to lock the battery case. It is easy to wear out after long-term use and cannot be locked tightly. In addition, the existing locking mechanism has many action forms and complex structure, and is not reliable enough, and the failure rate of locking and unlocking is high.

[0004] Therefore, it is necessary to design a new locking mechanism to solve the above problems. Utility Model Content

[0005] The present application aims to provide a locking mechanism and a vehicle to solve the problems of the battery locking mechanism having multiple action forms, complex structure, insufficient reliability, and easy wear during long-term use.

[0006] In a first aspect, an embodiment of the present application provides a locking mechanism, comprising: a wedge block, a locking block, a mounting bracket, a connecting rod assembly, and a driving member;

[0007] The wedge block is used to be fixed on the battery box, and the wedge block and the locking block cooperate with each other;

[0008] The mounting bracket is used to be fixed on the vehicle frame, and the mounting bracket includes a locking seat arranged near the battery box;

[0009] The locking block is sleeved in the locking seat;

[0010] The connecting rod assembly is mounted on the mounting frame, one end of the connecting rod assembly is connected to the locking block, and the other end is connected to the driving member, and the connecting rod assembly has a dead point position during the rotation process;

[0011] The driving member drives the connecting rod assembly to rotate, driving the locking block to move in the locking seat. When the connecting rod assembly rotates to the dead point position, the locking block abuts against the wedge block; when the connecting rod assembly leaves the dead point position, the locking block releases the abutment with the wedge block.

[0012] Optionally, the connecting rod assembly includes: a connecting rod, an L-shaped mounting bracket, a driving member joint, a first rotating shaft, a second rotating shaft, and a third rotating shaft;

[0013] One end of the connecting rod is hinged to the locking block via the first rotating shaft, and the other end of the connecting rod is hinged to the corner of the L-shaped mounting frame via the second rotating shaft;

[0014] One end of the L-shaped mounting bracket is hinged to the driving member joint via the third rotating shaft, and the other end is hinged to the mounting bracket;

[0015] The driving member connector is connected to the driving member.

[0016] Optionally, the mounting frame further comprises: a first mounting plate, a second mounting plate, a locking mounting seat plate and a fourth rotating shaft;

[0017] The locking seat, the first mounting plate, and the second mounting plate are fixed to the locking mounting seat plate;

[0018] The locking seat is arranged at one end close to the battery box, the second mounting plate is arranged at one end away from the battery box, and the first mounting plate is arranged between the locking seat and the second mounting plate;

[0019] The fourth rotating shaft is arranged on the first mounting plate;

[0020] The locking mounting seat plate is used to be fixed on the vehicle frame.

[0021] Optionally, the other end of the L-shaped mounting bracket is connected to the first mounting plate via the fourth rotating shaft, and the driving member is rotationally connected to the second mounting plate.

[0022] Optionally, the first rotating shaft and the fourth rotating shaft have the same height from the locking mounting seat plate, the driving member drives the first rotating shaft, the second rotating shaft and the fourth rotating shaft to rotate to a straight line, the locking mechanism is at a dead point position, and enters a locked state; when the first rotating shaft, the second rotating shaft and the fourth rotating shaft are not in a straight line, they enter an unlocked state.

[0023] Optionally, a side of the wedge block facing the locking block is a first inclined surface, and a side of the locking block facing the wedge block is a second inclined surface, and the first inclined surface and the second inclined surface cooperate with each other.

[0024] Optionally, a cavity is provided inside the locking seat, the size of the cavity matches the locking block, and the locking block passes through the cavity and cooperates with the wedge block to achieve locking.

[0025] Optionally, a shaft sleeve is provided on the inner wall of the cavity, and the locking block slides in the shaft sleeve.

[0026] Optionally, the locking mounting seat plate is mounted on a third mounting plate by bolts, and the third mounting plate is welded to the vehicle frame.

[0027] In a second aspect, an embodiment of the present application provides a vehicle, comprising a locking mechanism as provided in the first aspect of the present application.

[0028] The utility model provides a locking mechanism, including a wedge block, a locking block, a mounting bracket, a connecting rod assembly, and a driving member; the wedge block is used to be fixed on a battery box, and the wedge block and the locking block cooperate with each other; the mounting bracket is used to be fixed on a vehicle frame, and the mounting bracket includes a locking seat arranged near the battery box; the locking block is sleeved in the locking seat; the connecting rod assembly is installed on the mounting bracket, one end of the connecting rod assembly is connected to the locking block, and the other end is connected to the driving member, and the connecting rod assembly has a dead point position during rotation; the driving member drives the connecting rod assembly to rotate, driving the locking block to move in the locking seat, and when the connecting rod assembly rotates to the dead point position, the locking block abuts against the wedge block; when the connecting rod assembly is out of the dead point position, the locking block and the wedge block are released from abutment.

[0029] The connecting rod assembly in the present invention has a dead point position during the rotation process. When the driving member drives the connecting rod assembly to rotate to this position, the locking block connected to the connecting rod assembly also moves to a position abutting against the wedge block, pressing the battery case and the battery base to achieve wedge self-locking. At this time, if the battery case is to be moved, the locking block and the wedge block must be released from abutment, and the force acting on the locking block is axial when transmitted to the connecting rod assembly. At the dead point position, the axial force transmission angle is 0, and the connecting rod assembly cannot be rotated, and the locking block naturally cannot move. The locking mechanism in the present invention presses the battery case to the frame through the abutment of the wedge block and the locking block. It is not easy for the components to wear and fail due to friction, and reliable fixation of the battery case is achieved. The movement form is relatively simple. The switching between the locked and unlocked states can be achieved by only the driving member driving the connecting rod assembly to rotate, and the failure rate is low.

[0030] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0032] Figure 1 is a schematic diagram of a locking mechanism according to an embodiment of the present utility model;

[0033] Figure 2 This is a front view of the locking mechanism according to an embodiment of the present utility model in an unlocked state;

[0034] Figure 3 This is a front view of the locking mechanism according to an embodiment of the present utility model in a locked state;

[0035] Figure 4 is a schematic diagram of a mounting bracket according to an embodiment of the present utility model being installed on a battery base frame;

[0036] Figure 5 is a schematic diagram of a mounting bracket according to an embodiment of the present utility model;

[0037] Figure 6 It is a schematic diagram of a locking block according to an embodiment of the present utility model.

[0038] Figure markings: 1: wedge block; 2: locking block; 3: mounting bracket; 31: locking seat; 32: first mounting plate; 33: second mounting plate; 34: locking mounting seat plate; 35: fourth rotating shaft; 4: connecting rod assembly; 41: connecting rod; 42: L-shaped mounting bracket; 43: driving member joint; 44: first rotating shaft; 45: second rotating shaft; 46: third rotating shaft; 5: driving member; 6: battery box cross beam; 7: battery base frame; 71: battery base cross beam; 72: battery base middle vertical beam; 73: third mounting plate; 8: pad block; 9: third mounting plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the fixed scope of the present invention.

[0040] It should be understood that references throughout this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Therefore, the appearances of "in one embodiment" or "in an embodiment" throughout this specification do not necessarily refer to the same embodiment. Furthermore, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0041] Reference Figure 1 , shows a schematic diagram of the locking mechanism in the embodiment of the present utility model; Figure 2 , shows a front view of the locking mechanism in the unlocked state according to an embodiment of the present invention; Figure 3 , shows a front view of the locking mechanism in the locked state according to an embodiment of the present invention; Figure 4 and Figure 5 , shows a schematic diagram of the mounting bracket 3 of the locking mechanism in the embodiment of the present utility model; Figure 6 , shows a schematic diagram of the locking block 2 of the locking mechanism in an embodiment of the present utility model.

[0042] like Figure 1 and Figure 2 As shown, the present application discloses a locking mechanism, including: a wedge block 1, a locking block 2, a mounting bracket 3, a connecting rod assembly 4, and a driving member 5; the wedge block 1 is used to be fixed on the battery box, and the wedge block 1 and the locking block 2 cooperate with each other; the mounting bracket 3 is used to be fixed on the vehicle frame, and the mounting bracket 3 includes a locking seat 31 arranged near the battery box; the locking block 2 is sleeved in the locking seat 31; the connecting rod assembly 4 is installed on the mounting bracket 3, one end of the connecting rod assembly 4 is connected to the locking block 2, and the other end is connected to the driving member 5, and the connecting rod assembly 4 has a dead point position during rotation; the driving member 5 drives the connecting rod assembly 4 to rotate, driving the locking block 2 to move in the locking seat 31, and when the connecting rod assembly 4 rotates to the dead point position, the locking block 2 abuts against the wedge block 1; when the connecting rod assembly 4 is out of the dead point position, the locking block 2 and the wedge block 1 are released from abutment.

[0043] In this embodiment of the utility model, the battery case cross beam 6, the battery base cross beam 71, and the battery base middle vertical beam 72 constitute the battery case locking contact frame. The battery base cross beam 71 and the battery base middle vertical beam 72 are vertically welded together to form the battery base frame 7. The battery case cross beam 6 is located above the battery base cross beam 71. The locking mechanism installed on the battery base middle vertical beam 72 applies pressure to the battery case cross beam 6, causing it to be pressed tightly against the battery base cross beam 71. The battery base cross beam 71 is provided with a pad 8 to act as a buffer when the battery case is lifted onto the battery base and fixed.

[0044] The mounting bracket 3 is fixed to the battery base frame 7. Specifically, the mounting bracket 3 is welded to the vertical beam 72 in the battery base. The locking seat 31 and the driving member 5 are respectively mounted at both ends of the mounting bracket 3. A connecting rod assembly 4 is installed in the middle. One end of the connecting rod assembly 4 is connected to the driving member 5, and the other end is connected to the locking block 2. The shape and size of the locking block 2 match the locking seat 31. The locking seat 31 can accommodate the locking block 2 to slide inside the locking seat 31. The connecting rod assembly 4 transmits the movement of the driving member 5 to the locking block 2, causing the locking block 2 to slide in or out of the locking seat 31. In this embodiment, the locking block 2 is a cylinder with an occlusal surface at one end. Accordingly, the locking seat 31 is hollow inside and is a cylindrical channel with the same size as the locking block 2. Other shapes such as a rectangular parallelepiped and a cone can also be used. This application does not further limit the specific shapes of the locking seat 31 and the locking block 2.

[0045] The wedge block 1 is welded to the battery box cross beam 6. The wedge block 1 cooperates with the locking block 2. When the driving member 5 extends outward, it drives the connecting rod assembly 4 to move forward. The connecting rod assembly 4 drives the locking block 2 to move forward, forming a self-locking with the wedge block 3, pressing the battery box onto the frame. At this time, the connecting rod assembly 4 is in a dead point position, and the transmission angle is 0. The connecting rod assembly 4 cannot be rotated, and the locking block 2 cannot move. No matter how large the reaction force is (except the destructive reaction force), the battery box cannot be loosened. The dead point compression principle in mechanical mechanics is used to achieve reliable fixation of the battery box.

[0046] Furthermore, multiple pressing positions can be provided on the battery base frame 7 and multiple locking mechanisms can be installed.

[0047] The utility model provides a locking mechanism, wherein the locking block 2 mounted on the battery base frame 7 cooperates with the wedge block 1 mounted on the battery box cross beam 6, the driving member 5 drives the connecting rod assembly 4 to rotate, and drives the locking block 2 to slide in the locking seat 31, and when the connecting rod assembly 4 rotates to the dead point position, the locking block 2 also reaches a position that fits with the wedge block 1, and applies a downward force to the battery box cross beam 6 connected to the wedge block 1, pressing the battery box and the frame to achieve wedge self-locking. At this time, the compressed box cannot be loosened no matter how much reaction force (except destructive reaction force) there is. If the battery box is to be moved, the locking block 2 and the wedge block 1 must be released from contact, and the force acting on the locking block 2 is axial when transmitted to the connecting rod assembly 4. At the dead point position, the axial force transmission angle is 0, which cannot make the connecting rod assembly 4 rotate, and the locking block 2 naturally cannot move. The locking mechanism in the present application presses the battery box onto the frame by abutting the wedge block 1 and the locking block 2, which is not prone to component wear and failure due to friction, thereby achieving reliable fixation of the battery box. The movement form is relatively simple, and the switching between the locked and unlocked states can be achieved only by the driving member driving the connecting rod assembly 4 to rotate, and is not prone to failure.

[0048] In addition, in some optional embodiments, the side of the wedge block 1 facing the locking block 2 is a first inclined surface. The side of the locking block 2 facing the wedge block 1 is a second inclined surface, and the first inclined surface and the second inclined surface cooperate with each other.

[0049] When the driving member 5 drives the locking block 2 to move forward, the second inclined surface of the locking block 2 is pressed forward on the first inclined surface of the wedge block 1, and a downward force is applied to the battery box cross beam 6 connected to the wedge block 1 through the inclined contact surface, so that the battery box cross beam 6 is pressed against the battery base frame 7.

[0050] In addition, as attached Figure 2 and attached Figure 3As shown, in some optional embodiments, the connecting rod assembly 4 includes: a connecting rod 41, an L-shaped mounting bracket 42, a driving member joint 43, a first rotating shaft 44, a second rotating shaft 45, and a third rotating shaft 46; one end of the connecting rod 41 is hinged to the locking block 2 through the first rotating shaft 44, and the other end is hinged to the corner of the L-shaped mounting bracket 42 through the second rotating shaft 45; one end of the L-shaped mounting bracket 42 is hinged to the driving member joint 43 through the third rotating shaft 46, and the other end is hinged to the mounting bracket 3; the driving member joint 43 is connected to the driving member 5.

[0051] In this embodiment of the utility model, the connecting rod assembly 4 includes two connecting rods 41, an L-shaped mounting bracket 42, and a drive member connector 43, which together with the wedge block 1 and the locking block 2 form a double rocker wedge self-locking mechanism. The two connecting rods 41 are symmetrically hinged to the end of the locking block 2 away from the wedge block 1 via a first rotating shaft 44. The two connecting rods 41 on either side of the locking block 2 are fixed by a combination of washers and hexagonal nuts. The connecting rods 41 can drive the locking block 2 to move back and forth in the locking seat 31. The thickness of the L-shaped mounting bracket 42 is the same as that of the locking block 2. A second rotating shaft 45 is provided at the corners of the two opposing L-shaped surfaces. The two connecting rods 41 are respectively connected to the two ends of the second rotating shaft 45, so that the two connecting rods 41 always remain parallel in both motion and static states. One end of the L-shaped mounting bracket 42 is connected to the drive member connector 43 via a third rotating shaft 46, and the other end is movably connected to the mounting bracket 3. One end of the driving member joint 43 is connected to the L-shaped mounting bracket 42, and the other end is connected to the driving member 5. The driving member joint 43 can adopt a fisheye joint, which can withstand a large load, and can withstand radial load, axial load or a combined load of radial and axial loads at the same time, thereby reducing the problem of cylinder leakage or cylinder rod diameter fracture caused by the driving member 5 being subjected to a large axial force of the vehicle.

[0052] Attachment Figure 2 The unlocked state of the locking mechanism is shown. When the locking mechanism starts working, the driving member 5 extends outward to drive the L-shaped mounting bracket 42 connected to the driving member 5 to rotate. The L-shaped mounting bracket 42 rotates to drive the connecting rod 41 to move forward. The connecting rod 41 drives the locking block 2 to move forward and form a self-locking with the wedge block 1. Figure 3 As shown, when the connecting rod 41 and the end of the L-shaped mounting bracket 42 connected to the mounting bracket 3 are in a horizontal state, the locking mechanism is in a dead point position. At this time, the box body is compressed and cannot be loosened no matter how large the reaction force is. This locking mechanism utilizes the dead point compression principle in mechanical mechanics.

[0053] Similarly, when the locking mechanism contacts and locks, the driving member 5 retracts and drives the L-shaped mounting bracket 42 to rotate. The rotation of the L-shaped mounting bracket 42 drives the connecting rod 41 to move backward. The connecting rod 41 drives the locking block 2 to move backward, releasing the contact with the wedge block 1, forming an unlocking trend. When the locking block 2 moves into the locking seat 31, the locking mechanism is completely unlocked.

[0054] In addition, as attached Figure 4 and attached Figure 5 As shown, in some optional embodiments, the mounting frame 3 also includes: a first mounting plate 32, a second mounting plate 33, a locking mounting seat plate 34 and a fourth rotating shaft 35; the locking seat 31, the first mounting plate 32, and the second mounting plate 33 are fixed on the locking mounting seat plate 34; the locking seat 31 is arranged at one end close to the battery box cross beam 6, the second mounting plate 33 is arranged at one end away from the battery box cross beam 6, and the first mounting plate 32 is arranged between the locking seat 31 and the second mounting plate 33; the fourth rotating shaft 35 is arranged on the first mounting plate 32; the locking mounting seat plate 34 is used to be fixed on the battery base frame 7.

[0055] The mounting frame 3 provides a platform for the combined attachment of the driver 5, connecting rod assembly 4, and locking block 2. It comprises a locking base 31, a first mounting plate 32, a second mounting plate 33, and a locking mounting base plate 34. The locking base 31 limits the movement of the locking block 2. The first mounting plate 32 secures the connecting rod assembly 4 via a fourth pivot 35, allowing the connecting rod assembly 4 to rotate about the fourth pivot 35. The second mounting plate 33 secures the driver 5. The first mounting plate 32, the second mounting plate 33, and the locking mounting base plate 34 are sequentially mounted on the locking mounting base plate 34, gradually moving away from the battery compartment crossbeam 6. The locking mounting base plate 34 secures the structure to the battery base frame 7.

[0056] In addition, in some optional embodiments, the other end of the L-shaped mounting bracket 42 is connected to the first mounting plate 32 via a fourth rotating shaft 35 , and the driving member 5 is rotationally connected to the second mounting plate 33 .

[0057] One end of the L-shaped mounting bracket 42 is connected to the driver connector 43, and the other end is fixed to the first mounting plate 32 via the fourth rotating shaft 35. The middle portion of the L-shaped mounting bracket 42 is connected to the connecting rod 41 via the second rotating shaft 45 at the corner of the L-shaped surface. The end of the L-shaped mounting bracket 42 connected to the driver 5 is the movable end, while the other end connected to the first mounting plate 32 is the fixed end. Driven by the driver 5, the L-shaped mounting bracket 42 rotates about the fourth rotating shaft 35. The second rotating shaft 45 moves with the rotation of the L-shaped mounting bracket 42, driving the connecting rod 41 connected to the second rotating shaft 45 and the locking block 2 at the other end of the connecting rod 41.

[0058] In addition, in some optional embodiments, the first rotating shaft 44 and the fourth rotating shaft 35 are at the same height from the locking mounting seat plate 34, and the driving member 5 drives the first rotating shaft 44, the second rotating shaft 45 and the fourth rotating shaft 35 to rotate to a straight line, and the locking mechanism is at a dead point position and enters a locked state; when the first rotating shaft 44, the second rotating shaft 45 and the fourth rotating shaft 35 are not in a straight line, they enter an unlocked state.

[0059] The connecting rod 41 and L-shaped mounting bracket 42 in the connecting rod assembly 4 experience a dead point during their movement. When the two components are aligned, the transmission angle γ of the connecting rod assembly 4 is 0 degrees. At this point, the force exerted by the locking block 2 on the L-shaped mounting bracket 42 through the connecting rod 41 passes precisely through its center of rotation, resulting in a stuck state where the components cannot rotate. This position is called a dead point. Regardless of the driving force, the mechanism cannot be activated. In this embodiment, the first rotating shaft 44 and the fourth rotating shaft 35 are fixed to the mounting bracket 3, and the second rotating shaft 45 rotates with the rotation of the L-shaped mounting bracket 42. When the second rotating shaft 45 rotates to the line connecting the first rotating shaft 44 and the fourth rotating shaft 35, the connecting rod 41 and the L-shaped mounting bracket 42 near the fourth rotating shaft 35 become horizontal. The axial forces acting on the components are aligned, reaching the dead point of the mechanical connecting rod, and the locking mechanism enters the locked state. When the L-shaped mounting bracket 42 rotates, the second rotating shaft 45 leaves the dead point position, the first rotating shaft 44, the second rotating shaft 45 and the fourth rotating shaft 35 are no longer in a straight line, and the locking mechanism enters the unlocked state.

[0060] In addition, in some optional embodiments, there is a cavity inside the locking seat 31, the size of the cavity matches the locking block 2, and the locking block 2 passes through the cavity and cooperates with the wedge block 1 to achieve locking.

[0061] As attached Figure 6 As shown, locking seat 31 is hollow and forms a cylindrical channel with the same dimensions as locking block 2. The height of the cavity corresponds to the height of wedge block 1. This serves to limit the movement of locking block 2, allowing it to move toward and away from wedge block 1 under the drive of driver 5, switching between a locked and unlocked state. The cavity within locking seat 31 may also take other shapes, such as a rectangular parallelepiped or a cone, to match the shape of locking block 2. This application does not impose any further limitations on the specific shapes of locking seat 31 and locking block 2.

[0062] In addition, in some optional embodiments, a shaft sleeve 311 is provided on the inner wall of the cavity, and the locking block 2 slides in the shaft sleeve 311 .

[0063] The shaft sleeve 311 can be welded to the inner wall of the cavity of the locking seat 31 or can be installed. When the locking block 2 moves back and forth in the cavity of the locking seat 31, the shaft sleeve 311 can reduce friction and jamming.

[0064] In addition, if Figure 4 As shown, in some optional embodiments, the locking mounting seat plate 34 is mounted on the third mounting plate 9 by bolts, and the third mounting plate 9 is welded to the battery base frame 7.

[0065] A third mounting plate 9 is welded to the vertical beam 72 in the battery base, and together with the battery base crossbeam 71, it forms the battery base frame 7. The third mounting plate 9 is the same size as the locking mounting plate 34. It has holes extending through its surface for mounting bolts. The locking mounting plate 34 is bolted to the third mounting plate 9, facilitating removal and installation of the locking mechanism during battery replacement.

[0066] The utility model provides a locking mechanism, including a wedge block, a locking block, a mounting bracket, a connecting rod assembly, and a driving member; the wedge block is used to be fixed on the cross beam of the battery box, and the wedge block and the locking block cooperate with each other; the mounting bracket is used to be fixed on the battery base frame, and the mounting bracket includes a locking seat arranged near the cross beam of the battery box; the locking block is sleeved in the locking seat; the connecting rod assembly is installed on the mounting bracket, one end of the connecting rod assembly is movably connected to the locking block, and the other end is movably connected to the driving member; the driving member drives the connecting rod assembly to rotate, so as to drive the locking block to move in the locking seat, abut against and disengage from the wedge block, and realize locking and unlocking.

[0067] The locking block installed on the battery base frame cooperates with the wedge block installed on the battery box crossbeam. The driving member drives the connecting rod assembly to rotate and drives the locking block to slide in the locking seat. When the connecting rod assembly rotates to the dead point, the locking block also reaches a position that fits with the wedge block, exerting a downward force on the battery box crossbeam connected to the wedge block, pressing the battery box and the battery base together to achieve wedge self-locking. At this time, the compressed box cannot be loosened no matter how much reaction force (except destructive reaction force) there is. A strong locking force can be obtained through the wedge self-locking and mechanical connecting rod dead point principle, which can solve the problem of box Z-axis jump and loosening after compression. The movement form of the mechanism is simple, and the locking and unlocking states can be switched only by rotating the driving member, which is not prone to failure.

[0068] Another aspect of the present invention is to provide a vehicle equipped with the above-mentioned locking mechanism.

[0069] As for the above-mentioned vehicle embodiment, since it is basically similar to the locking mechanism embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the locking mechanism embodiment.

[0070] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0071] Although alternative embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including alternative embodiments and all changes and modifications that fall within the scope of the present invention.

[0072] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity from another, and do not necessarily require or imply any actual relationship or order between these entities. Moreover, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that an article or terminal device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such article or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the article or terminal device comprising the element.

[0073] The above is a detailed introduction to the technical solution provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. At the same time, for those skilled in the art, according to the principles and implementation methods of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A locking mechanism for locking a battery box to a vehicle frame, characterized in that: include: Wedge block (1), locking block (2), mounting frame (3), connecting rod assembly (4), driving member (5); The wedge block (1) is used to be fixed on the battery box, and the wedge block (1) and the locking block (2) cooperate with each other; The mounting frame (3) is used to be fixed on the vehicle frame, and the mounting frame (3) includes a locking seat (31) arranged near the battery box; The locking block (2) is sleeved in the locking seat (31); The connecting rod assembly (4) is mounted on the mounting frame (3), one end of the connecting rod assembly (4) is connected to the locking block (2), and the other end is connected to the driving member (5), and the connecting rod assembly (4) has a dead point position during the rotation process; The driving member (5) drives the connecting rod assembly (4) to rotate, thereby driving the locking block (2) to move in the locking seat (31); when the connecting rod assembly (4) rotates to a dead point position, the locking block (2) abuts against the wedge block (1); when the connecting rod assembly (4) leaves the dead point position, the locking block (2) and the wedge block (1) are released from abutment.

2. The locking mechanism according to claim 1, wherein: The connecting rod assembly (4) comprises: a connecting rod (41), an L-shaped mounting frame (42), a driving member joint (43), a first rotating shaft (44), a second rotating shaft (45), and a third rotating shaft (46); One end of the connecting rod (41) is hinged to the locking block (2) via the first rotating shaft (44), and the other end of the connecting rod (41) is hinged to the corner of the L-shaped mounting frame (42) via the second rotating shaft (45); One end of the L-shaped mounting frame (42) is hinged to the driving member joint (43) via the third rotating shaft (46), and the other end is hinged to the mounting frame (3); The driving member connector (43) is connected to the driving member (5).

3. The locking mechanism according to claim 2, wherein: The mounting frame (3) further comprises: a first mounting plate (32), a second mounting plate (33), a locking mounting seat plate (34) and a fourth rotating shaft (35). ； The locking seat (31), the first mounting plate (32), and the second mounting plate (33) are fixed on the locking mounting seat plate (34); The locking seat (31) is arranged at one end close to the battery box, the second mounting plate (33) is arranged at one end away from the battery box, and the first mounting plate (32) is arranged between the locking seat (31) and the second mounting plate (33); The fourth rotating shaft (35) is arranged on the first mounting plate (32); The locking mounting seat plate (34) is used for being fixed on the vehicle frame.

4. The locking mechanism according to claim 3, wherein: The other end of the L-shaped mounting frame (42) is connected to the first mounting plate (32) via the fourth rotating shaft (35), and the driving member (5) is rotationally connected to the second mounting plate (33).

5. The locking mechanism according to claim 4, characterized in that: The first rotating shaft (44) and the fourth rotating shaft (35) are at the same height from the locking mounting seat plate (34); the driving member (5) drives the first rotating shaft (44), the second rotating shaft (45) and the fourth rotating shaft (35) to rotate to a straight line, and the locking mechanism is at a dead point position and enters a locked state; when the first rotating shaft (44), the second rotating shaft (45) and the fourth rotating shaft (35) are not on a straight line, the locking mechanism enters an unlocked state.

6. The locking mechanism according to claim 1, wherein: The side of the wedge block (1) facing the locking block (2) is a first inclined surface; the side of the locking block (2) facing the wedge block (1) is a second inclined surface, and the first inclined surface and the second inclined surface cooperate with each other.

7. The locking mechanism according to claim 1, wherein: The locking seat (31) has a cavity inside, the size of the cavity matches the locking block (2), and the locking block (2) passes through the cavity to cooperate with the wedge block (1) to achieve locking.

8. The locking mechanism according to claim 7, wherein: A shaft sleeve (311) is provided on the inner wall of the cavity, and the locking block (2) slides in the shaft sleeve (311).

9. The locking mechanism according to claim 3, wherein: The locking mounting seat plate (34) is mounted on a third mounting plate (9) via bolts, and the third mounting plate (9) is welded to the vehicle frame.

10. A vehicle, characterized in that: The invention comprises a locking mechanism as claimed in any one of claims 1 to 9.

Images