Locking mechanism, stamping storage battery bolt, storage battery and motor vehicle

Abstract

The utility model discloses a locking mechanism, a stamping storage battery bolt, a storage battery and a motor vehicle. The locking mechanism comprises a connecting piece and a locking hole formed in the connecting piece, a first clamping arm and a second clamping arm are arranged, and an abutting piece is installed between a bolt and the first clamping arm and between the bolt and the second clamping arm; an elastic piece used for keeping the separation trend of the bolt and the abutting piece is arranged between the head of the bolt and the abutting piece. The bolt sequentially penetrates through the elastic piece, the second channel and the first channel and is matched with the nut to be installed on the first clamping arm and the second clamping arm. The technical scheme has the advantages that the elastic piece is arranged between the head of the bolt and the abutting piece, the bolt and the abutting piece are normally separated by providing elastic force, so that rotation of the nut in a natural state cannot drive the locking mechanism to act, misoperation is prevented, and the locking mechanism can be locked only after the elastic force is overcome to enable the bolt to abut against the abutting piece. Locking can be effectively driven through rotation of the nut, and therefore reliable separation of a safe state and a working state is achieved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical connection, and more specifically, to a locking mechanism, a stamped battery plug, a storage battery, and a motor vehicle. Background Technology

[0002] In the field of mechanical connections and equipment maintenance, using bolts and nuts for locking and adjustment is a basic and widely used method. However, this conventional structure has an inherent drawback: the nut is always in a directly driveable working state. There is no clutch mechanism, and it tightens directly during the tightening operation. In certain scenarios, it is necessary to avoid premature tightening due to misoperation or accidental contact, such as in situations where tightening would cause deformation. Premature deformation caused by early misoperation needs to be avoided, as it could affect subsequent installation. Utility Model Content

[0003] To address the shortcomings of existing technologies, a locking mechanism, a stamped battery plug, a storage battery, and a motor vehicle are provided. This device can effectively prevent bolts and nuts from being accidentally tightened due to misoperation or accidental contact.

[0004] To achieve the above objectives, the following technical solution is provided: a locking mechanism, including a connecting member;

[0005] The connector is provided with a locking hole, and the locking hole has an opening in its radial direction;

[0006] The connector has a first clamping arm and a second clamping arm extending from the opening, and a first channel for the bolt to pass through is formed between the first clamping arm and the second clamping arm.

[0007] An abutting element is installed between the bolt and the first and second clamping arms;

[0008] The abutting component is provided with a second channel for the bolt to pass through;

[0009] An elastic element is provided between the head of the bolt and the abutting member to maintain the tendency of the bolt to separate from the abutting member;

[0010] The bolt passes through the elastic element, the second channel and the first channel in sequence, and is fitted with a nut on the first clamping arm and the second clamping arm;

[0011] When the bolt separates from the contacting part, rotating the nut causes the bolt to spin freely.

[0012] When the pressing bolt is pressed to make it contact the abutment, the rotating nut is used to make it cooperate with the bolt to drive the abutment to move, which in turn causes the abutment to move the first clamping arm and the second clamping arm, thereby reducing or expanding the formed first channel, so as to reduce the diameter of the locking hole.

[0013] A further optimization of this utility model is that an engagement mechanism is provided between the bolt and the contacting part;

[0014] The bolt is connected to the contacting part through an engagement mechanism, and the engagement mechanism restricts the rotation of the bolt.

[0015] In a further optimization of this utility model, the engagement mechanism includes a first mating part installed on the bolt head and a second mating part installed on the side of the contact member near the bolt head;

[0016] When the bolt is pressed, the first mating part and the second mating part engage with the keyway and cooperate with the nut to drive the abutment to move.

[0017] In a further optimization of this utility model, the second mating part is set as V-shaped, and the first mating part is arranged along the circumference of the bolt shank and is adapted to the shape of the second mating part.

[0018] A further optimization of this utility model is that the first clamping arm and / or the second clamping arm are provided with mating grooves;

[0019] The abutting member is provided with a guide corresponding to the position of the mating groove;

[0020] The guide is connected to the abutment;

[0021] When the abutting member abuts against the first clamping arm and the second clamping arm, the guide member is inserted into the mating groove and moves with the abutting member. The guide member and the mating groove cooperate with each other to guide the first channel formed by the first clamping arm and the second clamping arm to increase or decrease.

[0022] A further optimization of this utility model is that the guide is provided with a first inclined surface;

[0023] The mating groove is provided with a second inclined surface that matches the shape of the first inclined surface;

[0024] The guide and the mating groove cooperate with each other through the first inclined surface and the second inclined surface to guide the first channel formed by the first clamping arm and the second clamping arm to increase or decrease.

[0025] A stamped battery plug, including the locking mechanism as described above;

[0026] The connector is connected to the battery pack terminal through a locking hole, and the locking hole is tightened or released by the cooperation of bolts and nuts.

[0027] A storage battery includes a battery pack and a locking mechanism;

[0028] The locking mechanism is as described above.

[0029] The connector is connected to the battery pack terminal through a locking hole, and the locking hole is tightened or released by the cooperation of bolts and nuts.

[0030] A motor vehicle, including a battery pack and a locking mechanism;

[0031] The locking mechanism is as described above.

[0032] The connector is connected to the battery pack terminal through a locking hole, and the locking hole is tightened or released by the cooperation of bolts and nuts.

[0033] The technical solution has the following advantages: by placing the elastic element between the bolt head and the contacting element, the bolt and the contacting element are kept normally separated by the elastic force, so that the rotation of the nut in the natural state cannot drive the locking mechanism to operate, thus preventing misoperation. Only after overcoming the elastic force and causing the bolt and the contacting element to come into contact can the rotation of the nut effectively drive the locking, thus achieving a reliable separation between the safe state and the working state. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of the locking mechanism in this solution.

[0035] Figure 2 This is an exploded structural diagram of the locking mechanism in this design.

[0036] Figure 3 This is a three-dimensional structural diagram of the connector in this solution.

[0037] Figure 4 This is a three-dimensional structural diagram of the contact component in this design.

[0038] Figure 5 This is a three-dimensional structural diagram of the bolts in this design.

[0039] Figure 6 This is a three-dimensional structural diagram of the contact component of this solution cooperating with the first and second clamping arms.

[0040] Figure 7 This is a three-dimensional structural diagram of the locking mechanism in its natural state.

[0041] Reference numerals: 1. Connector; 11. Locking hole; 12. Opening; 13. First clamping arm; 131. Mating groove; 1311. Second inclined surface; 14. Second clamping arm; 15. First channel; 2. Bolt; 3. Abutting element; 31. Second channel; 4. Elastic element; 5. Nut; 6. Engaging mechanism; 61. First mating part; 62. Second mating part; 7. Guide element; 71. First inclined surface. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0043] Reference Figure 1-7 As shown, a locking mechanism includes a connector 1;

[0044] The connector 1 is provided with a locking hole 11, and the locking hole 11 has an opening 12 in its radial direction;

[0045] The connector 1 extends at the opening 12 and is provided with a first clamping arm 13 and a second clamping arm 14, and a first channel 15 for the bolt 2 to pass through is formed between the first clamping arm 13 and the second clamping arm 14.

[0046] An abutting element 3 is installed between bolt 2 and the first clamping arm 13 and the second clamping arm 14;

[0047] The contacting member 3 is provided with a second channel 31 for the bolt 2 to pass through;

[0048] An elastic element 4 is provided between the head of the bolt 2 and the abutting part 3 to maintain the tendency of the bolt 2 to separate from the abutting part 3;

[0049] Bolt 2 passes through elastic element 4, second channel 31 and first channel 15 in sequence, and is installed on first clamping arm 13 and second clamping arm 14 in conjunction with nut 5;

[0050] When bolt 2 separates from the contacting part 3, rotate nut 5, and bolt 2 is in a free-spinning state;

[0051] When the bolt 2 is pressed to make it contact the abutment 3, the nut 5 is rotated to make it cooperate with the bolt 2 to drive the abutment 3 to move. The abutment 3 drives the first clamping arm 13 and the second clamping arm 14 to move, thereby reducing or expanding the formed first channel 15, so as to reduce the diameter of the locking hole 11.

[0052] Connector 1 is used to connect the object to be locked (e.g., battery terminals), such as Figure 3 As shown, the locking hole 11 and the radial opening 12 on the connector 1 constitute a retractable clamping structure;

[0053] The first clamping arm 13 and the second clamping arm 14 extend from both sides of the opening 12, forming a shape like... Figure 3 The first channel 15 is shown;

[0054] The second channel 31 of the contact element 3, as shown Figure 4As shown, the rod part of the bolt 2 inserted into the second channel 31 is in a separated state from the second channel 31.

[0055] like Figure 2 As shown, bolt 2 passes through elastic element 4, second channel 31 and first channel 15 in sequence, and is installed on first clamping arm 13 and second clamping arm 14 in cooperation with nut 5;

[0056] like Figure 7 In the natural state shown, due to the elastic force of the elastic element 4 (such as a compression spring or rubber), the head of the bolt 2 is lifted, so that the shank of the bolt 2 and the contacting element 3 are in a separated or non-close contact state.

[0057] At this time, if the nut 5 is rotated, since the bolt 2 only contacts the elastic element 4 and does not contact the first channel 15 and the second channel 31, the elastic element 4 cannot provide enough friction to restrict the bolt 2 from rotating. Therefore, the bolt 2 and the nut 5 are in a state of synchronous rotation and cannot shorten the distance between the head of the nut 5 and the bolt 2. So the first clamping arm 13 and the second clamping arm 14 cannot be clamped by the abutting element 3 and the nut 5. At this time, rotating the nut 5 cannot reduce the diameter of the locking hole 11.

[0058] The free-spinning state of bolt 2 effectively prevents the locking hole 11 from accidentally shrinking due to unintentional operation (such as accidental contact or tightening of nut 5), thereby causing pre-existing and uncontrollable deformation or compression to the components installed therein (such as flexible battery terminals).

[0059] When a locking operation is required, the operator presses the head of bolt 2 to overcome the elastic force of elastic element 4, so that the head of bolt 2 comes into contact with the contacting element 3.

[0060] Alternatively, the operator may use tools to fix bolt 2, preventing bolt 2 from rotating synchronously with nut 5;

[0061] At this point, rotating nut 5 will cause its rotational motion to be converted into a linear motion tendency along the axial direction of bolt 2 through its threaded engagement with bolt 2.

[0062] As the distance between the nut 5 and the screw head continues to decrease, the contacting part 3 is driven to move axially along the bolt 2;

[0063] If the first clamping arm 13 and the second clamping arm 14 are as follows Figure 1 As shown, as the abutment 3 moves, the first clamping arm 13 and the second clamping arm 14 move closer to each other, thereby causing the diameter of the locking hole 11 to decrease.

[0064] If the first clamping arm 13 and the second clamping arm 14 are in a crossed state, as the abutment 3 moves, the first clamping arm 13 and the second clamping arm 14 move away from each other, thereby causing the diameter of the locking hole 11 to decrease.

[0065] The diameter of the locking hole 11 is reduced so that the connector 1 can be locked onto the battery terminal through the locking hole 11;

[0066] Compared with the existing technology, this solution uses the elastic element 4 to separate the bolt 2 and the contacting element 3 in their natural state. At this time, rotating the bolt 2 or the nut 5 in one direction will not shorten the distance between the head of the bolt 2 and the nut 5, and thus the diameter of the locking hole 11 cannot be adjusted. In specific scenarios, the locking hole 11 will not shrink unexpectedly due to misoperation, causing problems such as damage to the wires or the battery terminals.

[0067] Preferably, an engagement mechanism 6 is provided between the bolt 2 and the contacting member 3;

[0068] Bolt 2 is connected to the contact member 3 through the engagement mechanism 6, and the engagement mechanism 6 restricts the rotation of bolt 2.

[0069] The biting mechanism 6 is set in such a way as Figure 2 The bolt 2 shown is locked to restrict the circumferential movement of the bolt 2, so as to cooperate with the nut 5 to convert the rotational motion into linear motion.

[0070] When bolt 2 is lifted by elastic element 4 and is in a separated state, the engagement mechanism 6 is also in a disengaged or non-engaged state, at which time bolt 2 can rotate freely (free spin).

[0071] When the bolt 2 is pressed to make it abut against the contacting part 3, the engagement mechanism 6 simultaneously enters the engagement state, locking the bolt 2 and the contacting part 3 in the circumferential direction and restricting the relative rotation between them.

[0072] When the nut 5 is rotated again, the engagement mechanism 6 prevents the bolt 2 from rotating relative to the contacting part 3. The rotational motion of the nut 5 will be converted into a motion toward the head of the bolt 2 through the thread, thereby driving the first clamping arm 13 and the second clamping arm 14 to move.

[0073] The engagement mechanism 6 can be a keyway fit or a threaded fit. Any engagement mechanism 6 that can restrict the circumferential movement of the bolt 2 can be used as the engagement mechanism 6 in this scheme.

[0074] Preferably, the engagement mechanism 6 includes a first mating part 61 installed on the head of the bolt 2 and a second mating part 62 installed on the side of the contact member 3 near the head of the bolt 2;

[0075] When the bolt 2 is pressed, the first mating part 61 and the second mating part 62 engage with each other via keyways, and together with the nut 5, drive the contacting part 3 to move.

[0076] First Coordination Section 61 Figure 5 As shown, it is fixedly installed on the head of bolt 2;

[0077] Second coordination part 62 Figure 4 The contact part 3 is fixedly installed on the side surface facing the head of the bolt 2.

[0078] The two are arranged opposite each other in the axial direction;

[0079] When bolt 2 is not pressed, under the action of elastic element 4, as Figure 7 As shown, there is an axial gap between the first mating part 61 and the second mating part 62, and no effective fit is formed;

[0080] like Figure 1 As shown, when the bolt 2 is pressed, the bolt 2 moves axially against the elastic force of the elastic element 4, causing the first mating part 61 of its head to engage with the keyway of the second mating part 62 on the contacting element 3.

[0081] The first mating part 61 and the second mating part 62 achieve circumferential locking, that is, restrict the relative rotation between the bolt 2 and the contacting part 3;

[0082] At this time, when the nut 5 is rotated, the keyway fit between the first mating part 61 and the second mating part 62 prevents the bolt 2 from rotating relative to the contacting part 3, and the rotational motion of the nut 5 is converted into the axial movement of the nut 5 along the bolt 2.

[0083] Preferably, the second mating part 62 is configured as a V-shape, and the first mating part 61 is arranged along the circumference of the bolt 2 and is adapted to the shape of the second mating part 62.

[0084] like Figure 4 and Figure 5 As shown, both the first mating part 61 and the second mating part 62 are V-shaped;

[0085] At least one V-shaped groove or protrusion is provided on the end face of the contact member 3;

[0086] Accordingly, the first mating part 61 is arranged along the circumference of the bolt 2 shaft, and its shape and position are adapted to and correspond to the second mating part 62;

[0087] When the bolt 2 is pressed, the first mating part 61 (V-shaped protrusion) of the bolt 2 head is inserted into the second mating part 62 (V-shaped groove) of the contacting part 3;

[0088] Because the V-shaped inclined structure has a good guiding effect, it can guide the bolt 2 and the contacting part 3 to be smoothly inserted even when there is an angular deviation between them.

[0089] At the same time, the two inclined surfaces of the V-shaped mating surface can effectively transmit bidirectional torque.

[0090] When the contacting part 3 is fixed, the screw can be restricted from rotating by the inclined plane regardless of whether the nut 5 rotates in the forward (locking) or reverse (loosening) direction.

[0091] This V-shaped design increases the effective contact and force transmission area, resulting in a smoother bite, more even force distribution, and reduced localized stress.

[0092] Meanwhile, the circumferential arrangement along the bolt 2 shaft ensures that the first mating part 61 can find a meshing point with the second mating part 62 at any angle, eliminating the need for alignment and improving operational convenience.

[0093] Preferably, the first clamping arm 13 and / or the second clamping arm 14 are provided with mating grooves 131;

[0094] The abutting member 3 is provided with a guide member 7 corresponding to the position of the mating groove 131;

[0095] The guide 7 is connected to the abutment 3;

[0096] When the contacting member 3 contacts the first clamping arm 13 and the second clamping arm 14, the guide member 7 is inserted into the mating groove 131 and moves with the contacting member 3. The guide member 7 and the mating groove 131 cooperate with each other to guide the first channel 15 formed by the first clamping arm 13 and the second clamping arm 14 to increase or decrease.

[0097] like Figure 6 As shown, the mating groove 131 is provided on the first clamping arm 13 and / or the second clamping arm 14, and the guide 7 is fixed on the abutting member 3 and corresponds one-to-one with the position of the mating groove 131;

[0098] When the contacting part 3 moves axially due to being driven by the bolt 2, the guide part 7 fixed on it also moves axially synchronously.

[0099] Since the guide 7 is inserted into the mating groove 131 of the clamping arm, the axial movement of the guide 7 is abutted by the inner wall of the mating groove 131, thereby converting the axial movement of the guide 7 into a force on the side wall of the mating groove 131, and through this force, the first clamping arm 13 and / or the second clamping arm 14 can move.

[0100] They are driven to produce radial elastic deformation or displacement, thereby increasing or decreasing the size of the first channel 15;

[0101] Compared to existing technologies, this solution allows for the adjustment of the first channel 15 by rotating the nut 5, thereby indirectly adjusting the diameter of the locking hole 11. This facilitates installation. The locking hole 11 is fitted onto the terminal block, and then the nut 5 is rotated to lock it in place. Furthermore, the rotation of the nut 5 provides more precise control over the diameter of the locking hole 11 compared to linear motion.

[0102] Preferably, the guide 7 is provided with a first inclined surface 71;

[0103] The mating groove 131 is provided with a second inclined surface 1311 that matches the shape of the first inclined surface 71;

[0104] The guide 7 and the mating groove 131 cooperate with each other through the first inclined surface 71 and the second inclined surface 1311 to guide the first channel 15 formed by the first clamping arm 13 and the second clamping arm 14 to increase or decrease.

[0105] like Figure 6 As shown, a first inclined surface 71 is provided on the guide 7, and a second inclined surface 1311 adapted to its shape is provided in the mating groove 131;

[0106] When the abutting member 3 drives the guide member 7 to move axially, the first inclined surface 71 of the guide member 7 slides relative to the second inclined surface 1311 of the mating groove 131.

[0107] The inclined plane efficiently converts axial movement (the direction of movement of guide 7) into radial displacement of the first clamping arm 13 and the second clamping arm 14;

[0108] When locking is required, the abutment 3 drives the guide 7 to move axially, and the first inclined surface 71 slides along the second inclined surface 1311. Due to the existence of the inclined surface, the guide 7 will generate a radial force on the second inclined surface 1311 while moving axially. The radial component of the force directly acts on the first clamping arm 13 and / or the second clamping arm 14, thereby driving them to generate radial displacement.

[0109] By rationally designing the inclination angles of the first inclined surface 71 and the second inclined surface 1311, different radial movement distances of the first clamping arm 13 and the second clamping arm 14 can be accommodated.

[0110] A stamped battery plug, including the locking mechanism as described above;

[0111] The connector 1 is connected to the battery pack terminal through the locking hole 11, and the locking hole 11 is locked or released by the cooperation of the bolt 2 and the nut 5.

[0112] Locking hole 11 is used to connect the terminal (usually a post-shaped terminal) of the battery pack (such as lead-acid battery).

[0113] When installing or maintaining the battery, first place the locking hole 11 onto the battery terminal;

[0114] Before the locking operation is performed, due to the "free-spinning" characteristic of the locking mechanism, even if the nut 5 is rotated unintentionally, it will not drive the clamp arm to retract and squeeze the soft terminal. This avoids the problem of the terminal being deformed, damaged or having poor contact with the battery plug due to misoperation before formal installation or adjustment.

[0115] When the battery plug is confirmed to be in the correct position and final tightening is required, the operator presses the head of bolt 2 to put the mechanism into the "engagement drive" state, and then rotates nut 5.

[0116] The rotation of nut 5 drives the contact member 3 to move, and the mechanism converts the axial force into a radial clamping force, causing the first clamping arm 13 and the second clamping arm 14 to deform, thereby reducing the diameter of the locking hole 11 to clamp the battery terminal and form a stable electrical connection.

[0117] A storage battery includes a battery pack and a locking mechanism;

[0118] The locking mechanism is as described above.

[0119] The connector 1 is connected to the battery pack terminal through the locking hole 11, and the locking hole 11 is locked or released by the cooperation of the bolt 2 and the nut 5.

[0120] The battery pack here has at least one terminal, and the connecting part 1 of the locking mechanism can be a separate battery connection terminal, an integrated part on the battery cover, or part of the battery terminal.

[0121] Its working process is similar to that described above. Throughout the entire life cycle of the battery, such as during factory testing, warehousing and transportation, vehicle installation, and subsequent maintenance, the locking mechanism provides safety against misoperation, ensuring that accidental rotation of nut 5 will not cause the terminal to be clamped.

[0122] Unexpected rotation of nut 5 will not cause the terminal to be clamped, thus protecting the integrity of the terminal (especially soft lead or plating).

[0123] When operators need to connect or disconnect the battery, the clear two-step operation procedure of "pressing + rotating" improves the safety and reliability of the battery as a product and reduces failures caused by improper installation.

[0124] A motor vehicle, including a battery pack and a locking mechanism;

[0125] The locking mechanism is as described above.

[0126] The connector 1 is connected to the battery pack terminal through the locking hole 11, and the locking hole 11 is locked or released by the cooperation of the bolt 2 and the nut 5.

[0127] In the electrical system of motor vehicles (such as cars, motorcycles, and electric vehicles), the storage battery is the core power component, and the reliability of its connection is directly related to vehicle starting, electronic equipment operation, and safety.

[0128] The locking mechanism of this solution is used for the connection of the terminal of the vehicle battery. In scenarios such as vehicle assembly line, after-sales repair workshop or user self-maintenance, when technicians are wiring, fixing or performing other peripheral operations, their tools or limbs will inevitably touch the nut 5 of the battery plug.

[0129] With this locking mechanism, such accidental contact will not cause the battery terminals to be accidentally locked or loosened, avoiding the risk of increased contact resistance, overheating or even sparking caused by terminal deformation, thus improving the safety level and long-term stability of the vehicle's electrical system.

[0130] A proper locking procedure requires a clear pressing motion, conforms to maintenance operating procedures, and helps ensure the construction quality of critical connection points.

[0131] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A locking mechanism, characterized in that, Including connectors; The connector is provided with a locking hole, and the locking hole has an opening in its radial direction; The connector has a first clamping arm and a second clamping arm extending from the opening, and a first channel for the bolt to pass through is formed between the first clamping arm and the second clamping arm. An abutting element is installed between the bolt and the first and second clamping arms; The abutting component is provided with a second channel for the bolt to pass through; An elastic element is provided between the head of the bolt and the abutting member to maintain the tendency of the bolt to separate from the abutting member; The bolt passes through the elastic element, the second channel and the first channel in sequence, and is fitted with a nut on the first clamping arm and the second clamping arm; When the bolt separates from the contacting part, rotating the nut causes the bolt to spin freely. When the pressing bolt is pressed to make it contact the abutment, the rotating nut is used to make it cooperate with the bolt to drive the abutment to move, which in turn causes the abutment to move the first clamping arm and the second clamping arm, thereby reducing or expanding the formed first channel, so as to reduce the diameter of the locking hole.

2. The locking mechanism according to claim 1, characterized in that, A meshing mechanism is provided between the bolt and the contacting part; The bolt is connected to the contacting part through an engagement mechanism, and the engagement mechanism restricts the rotation of the bolt.

3. The locking mechanism according to claim 2, characterized in that, The engagement mechanism includes a first mating part installed on the bolt head and a second mating part installed on the side of the contact member near the bolt head; When the bolt is pressed, the first mating part and the second mating part engage with the keyway and cooperate with the nut to drive the abutment to move.

4. The locking mechanism according to claim 3, characterized in that, The second mating part is configured as a V-shape, and the first mating part is arranged along the circumference of the bolt shaft and is adapted to the shape of the second mating part.

5. The locking mechanism according to claim 1, characterized in that, The first clamping arm and / or the second clamping arm are provided with mating grooves; The abutting member is provided with a guide corresponding to the position of the mating groove; The guide is connected to the abutment; When the abutting member abuts against the first clamping arm and the second clamping arm, the guide member is inserted into the mating groove and moves with the abutting member. The guide member and the mating groove cooperate with each other to guide the first channel formed by the first clamping arm and the second clamping arm to increase or decrease.

6. The locking mechanism according to claim 5, characterized in that, The guide is provided with a first inclined surface; The mating groove is provided with a second inclined surface that matches the shape of the first inclined surface; The guide and the mating groove cooperate with each other through the first inclined surface and the second inclined surface to guide the first channel formed by the first clamping arm and the second clamping arm to increase or decrease.

7. A stamped battery plug, characterized in that, Includes the locking mechanism as described in any one of claims 1-6; The connector is connected to the battery pack terminal through a locking hole, and the locking hole is tightened or released by the cooperation of bolts and nuts.

8. A storage battery, characterized in that, Includes battery pack and locking mechanism; The locking mechanism is as described in any one of claims 1-6; The connector is connected to the battery pack terminal through a locking hole, and the locking hole is tightened or released by the cooperation of bolts and nuts.

9. A motor vehicle, characterized in that, Includes battery pack and locking mechanism; The locking mechanism is as described in any one of claims 1-6; The connector is connected to the battery pack terminal through a locking hole, and the locking hole is tightened or released by the cooperation of bolts and nuts.

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