Lock body buckle box

Abstract

The utility model provides a lock body buckling box which is suitable for containing a spring bolt of a lock body, the spring bolt comprises an end face and a side face which are connected, the lock body buckling box comprises a shell and a rotating assembly, and the shell is provided with a containing cavity capable of containing the spring bolt. The rotating assembly is rotatably arranged in the containing cavity and comprises a first rotating arm and a second rotating arm which are fixedly connected, and the second rotating arm can rotate in the extending process of the spring bolt and keep abutting against the end face of the spring bolt; the first rotating arm can rotate in the extending process of the spring bolt and abut against the side face of the spring bolt so as to reduce the distance from the end face to the cavity bottom face of the containing cavity. According to the lock body buckling box provided by the utility model, the second rotating arm can be driven to rotate by extension of the spring bolt, so that the first rotating arm is driven to rotate to abut against the side face of the spring bolt, the distance from the end face to the cavity bottom face of the containing cavity is reduced, a gap between a door leaf and a door frame is reduced, the door leaf and the door frame are matched more tightly, and shaking of the door leaf is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a lock body buckle box. Background Art

[0002] The lock body buckle box is usually embedded in the door frame and is used to cooperate with the lock tongue of the lock body embedded in the door leaf. Specifically, the lock tongue of the lock body extends into the lock hole of the lock body buckle box to achieve locking of the door leaf on which the lock body is set.

[0003] However, for the lock body buckle box on the market, after the lock tongue is inserted into the lock hole of the lock body buckle box, the fit between the door leaf and the door frame is still relatively loose, making the door leaf easy to shake under the action of external force, affecting the user experience. Utility Model Content

[0004] The purpose of the embodiment of the utility model is to provide a lock body buckle box to solve the above problem. The embodiment of the utility model achieves the above purpose through the following technical solutions.

[0005] The utility model provides a lock body buckle box, which is suitable for accommodating a lock tongue of a lock body, wherein the lock tongue comprises a connected end face and a side face, and the lock body buckle box comprises:

[0006] A housing, wherein the housing is specifically capable of accommodating a receiving cavity of the locking tongue; and

[0007] A rotating assembly, which is rotatably disposed in the receiving cavity, and includes a first rotating arm and a second rotating arm that are fixedly connected, the second rotating arm being able to rotate and remain against the end face of the locking tongue during the extension of the locking tongue, and the rotation of the second rotating arm being able to drive the first rotating arm to rotate until it is against the side face of the locking tongue, so as to reduce the distance from the end face to the bottom face of the receiving cavity.

[0008] In one embodiment, the first rotating arm has a first contact surface away from the second rotating arm, the first contact surface can contact the side surface of the locking tongue, and the first contact surface is an arc surface.

[0009] In one embodiment, the second rotating arm includes a first rotating portion and a second rotating portion connected at an angle, the first rotating portion is connected to the first rotating arm, and the second rotating portion is provided with a second contact surface at one end away from the first rotating portion, and the second contact surface is an arc surface.

[0010] In one embodiment, the rotating assembly also includes a rotating shaft, which is passed through the joint of the first rotating arm and the second rotating arm and is rotatably disposed in the accommodating cavity. The shell has a length direction, and the extension direction of the rotating shaft is consistent with the length direction of the shell.

[0011] In one embodiment, the lock body buckle box also includes an adjustment seat and an adjustment piece, the adjustment seat is arranged in the shell, the rotating shaft is rotatably arranged on the adjustment seat, the adjustment piece passes through the shell and is connected to the adjustment seat to drive the adjustment seat to move along the width direction of the shell.

[0012] In one embodiment, the shell includes a bottom shell and a buckle plate, the bottom shell is provided with the accommodating cavity, the buckle plate cover is provided on the bottom shell, the buckle plate is provided with an avoidance hole for the locking tongue to extend into, and the adjusting member is passed through the buckle plate and is threadedly connected to the adjusting seat.

[0013] In one embodiment, the lock body buckle box further includes an elastic member, which is sleeved on the outer periphery of the adjusting member and is disposed between the adjusting seat and the buckle plate.

[0014] In one embodiment, the adjustment seat includes a base plate and a first connecting portion and a second connecting portion connected to opposite ends of the base plate, and the number of the adjustment members is two, one of which is passed through the buckle plate and connected to the first connecting portion, and the other of which is passed through the buckle plate and connected to the second connecting portion.

[0015] In one embodiment, the lock body buckle box also includes a torsion spring, which includes a torsion spring body and a first torsion arm and a second torsion arm extending from the torsion spring body in different directions. The torsion spring body is wound around the rotating shaft, the first torsion arm is fixed to the shell, and the second torsion arm is against one of the first rotating arm and the second rotating arm.

[0016] In one embodiment, the lock body buckle box also includes a fixed seat, the fixed seat includes a top plate, a first side plate and a second side plate, the first side plate and the second side plate are opposite to each other and are fixedly connected to the side wall of the shell, the top plate is connected between the first side plate and the second side plate, the shell includes a bottom shell and a buckle plate, the bottom shell is provided with the accommodating cavity, the buckle plate cover is provided on the bottom shell, and is fixedly connected to the top plate.

[0017] The lock body buckle box provided by the utility model comprises a shell and a rotating assembly, wherein the shell is specifically capable of accommodating a receiving cavity of a lock tongue; the rotating assembly is rotatably arranged in the receiving cavity, and the rotating assembly comprises a first rotating arm and a second rotating arm which are fixedly connected. Since the second rotating arm of the rotating assembly can rotate and keep against the end face of the lock tongue during the extension process of the lock tongue, the extension of the lock tongue can drive the rotation of the second rotating arm, thereby driving the first rotating arm to rotate to against the side face of the lock tongue, so as to reduce the distance from the end face to the bottom face of the receiving cavity, thereby reducing the gap between the door leaf and the door frame, so that the door leaf and the door frame are more closely matched, and the shaking of the door leaf is reduced.

[0018] These and other aspects of the present invention will be more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a structural schematic diagram of a lock body buckle box provided by the utility model.

[0021] Figure 2 yes Figure 1 The structure diagram of the lock body buckle box and the lock tongue shown.

[0022] Figure 3 yes Figure 2 Another structural schematic diagram of the lock body buckle box and the lock tongue is shown.

[0023] Figures 4 to 6 yes Figure 3 Cross-sectional view along the AA direction (state change diagram as the lock tongue gradually extends).

[0024] Figure 7 yes Figure 1 A longitudinal sectional view of the lock body buckle box shown.

[0025] Figure 8 yes Figure 7 A partial enlarged view at point B.

[0026] Fig. 9 yes Figure 1 A partial exploded view of the lock body buckle box is shown.

[0027] Fig.10 yes Figure 1 The structure diagram of the lock body buckle box with the shell removed is shown.

[0028] Fig.11 yes Fig.10 Another structural schematic diagram of the lock body buckle box with the shell removed is shown. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the embodiments of the present invention, the embodiments of the present invention will be described more comprehensively with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the embodiments of the present invention are only for the purpose of describing specific implementations and are not intended to limit the present invention.

[0031] For smart locks, after the door leaf is closed, the lock tongue is controlled to extend into the inner cavity of the lock body buckle box, thereby locking the door leaf. The inventor of the present application found that after the existing lock body buckle box accommodates the lock tongue of the lock body, the fit between the door leaf and the door frame is still relatively loose, making the door leaf easily shake under the action of external force, affecting the user experience.

[0032] In order to improve at least some of the above problems, the utility model provides a lock body buckle box, which can drive the rotation of the second rotating arm by means of the extension of the lock tongue, thereby driving the first rotating arm to rotate to abut against the side of the lock tongue, so as to reduce the distance from the end face to the bottom surface of the cavity of the receiving cavity, thereby reducing the gap between the door leaf and the door frame, making the door leaf and the door frame fit more closely and reducing the shaking of the door leaf. The lock body buckle box uses the end face of the lock tongue as the power source, and then transmits the force to the side of the lock tongue. The lock tongue will only be loaded when the door leaf is closed, the lock tongue is about to be fully in place and the end face touches the rotating shaft. Compared with the method in which the side of the lock tongue is always squeezed, it can effectively reduce power consumption and load force. The lock body buckle box provided by the utility model is described in detail below in conjunction with the specific implementation method and the drawings in the specification.

[0033] See also Figures 1 to 4 The utility model provides a lock body buckle box 10, which is suitable for accommodating a lock tongue 20 of a lock body. The lock tongue 20 includes a connected end face 22 and a side face 24. The lock body buckle box 10 includes a shell 11 and a rotating assembly 12. The shell 11 can specifically accommodate a receiving cavity 1121 of the lock tongue 20; the rotating assembly 12 is rotatably arranged in the receiving cavity 1121, and the rotating assembly 12 includes a first rotating arm 121 and a second rotating arm 123 that are fixedly connected. The second rotating arm 123 can rotate and maintain abutment with the end face 22 of the lock tongue 20 during the extension of the lock tongue 20; the first rotating arm 121 can rotate and abut against the side face 24 of the lock tongue 20 during the extension of the lock tongue 20 to reduce the distance from the end face 22 to the bottom surface of the receiving cavity 1121.

[0034] Specifically, the housing 11 includes a bottom housing 112 and a pinch plate 114. The bottom housing 112 is provided with a receiving cavity 1121 for receiving the lock tongue 20 of the lock body. The pinch plate 114 is covered on the bottom housing 112. The housing 11 has a length direction and a width direction. The length direction of the housing 11 is consistent with the length direction of the pinch plate 114, and the width direction of the housing 11 is consistent with the width direction of the bottom housing 112.

[0035] The buckle plate 114 is a generally long strip-shaped plate-like structure, and the buckle plate 114 can be used to be fixed to the door frame to achieve the fixing of the lock body buckle box 10 to the door frame. For example, the buckle plate 114 can be fixed to the end surface 22 of the door frame by screws.

[0036] The buckle plate 114 is provided with an escape hole 1141 ( Fig. 9 ), the position of the avoidance hole 1141 corresponds to the position of the bottom shell 112, and is used to avoid the lock tongue 20 of the lock body installed on the door leaf. The number of the avoidance holes 1141 is two, and both are rectangular in shape. The two avoidance holes 1141 are arranged at intervals along the length direction of the pinch plate 114. In other embodiments, the number of the avoidance holes 1141 can also be one, three or other numbers, and the shape of the avoidance holes 1141 can also be oval, circular or square, which can be set according to actual conditions.

[0037] In this embodiment, the bottom shell 112 is a generally hollow rectangular parallelepiped structure, and the bottom shell 112 has a length direction and a width direction, wherein the length direction of the bottom shell 112 is consistent with the length direction of the buckle plate 114, and the width direction of the bottom shell 112 is perpendicular to the length direction of the bottom shell 112. For ease of description, the length direction and the width direction of the bottom shell 112 are defined as the D1 direction and the D2 direction, respectively.

[0038] See also Figures 4 to 6 , the rotating assembly 12 is rotatably disposed in the receiving cavity 1121, and the rotating assembly 12 can drive the locking tongue 20 to move toward the bottom surface of the receiving cavity 1121 by rotating, so that the door leaf and the door frame can be more closely matched. Specifically, the rotating assembly 12 includes a first rotating arm 121 and a second rotating arm 123 that are fixedly connected. In this embodiment, the first rotating arm 121 and the second rotating arm 123 are integrally arranged to ensure the connection strength of the first rotating arm 121 and the second rotating arm 123. In other embodiments, the first rotating arm 121 and the second rotating arm 123 can also be two independent structures, and the two can be fixedly connected by welding, bonding, etc.

[0039] The first rotating arm 121 is a substantially rectangular plate-shaped structure and includes a first plate body 1212 and a contact end 1214 disposed on the first plate body 1212 , wherein the thickness of the contact end 1214 is greater than the thickness of the first plate body 1212 .

[0040] The first rotating arm 121 has a first contact surface 1215 away from the second rotating arm 123, and the first contact surface 1215 is arranged at the contact end 1214, and the first contact surface 1215 can contact the side surface 24 of the locking tongue 20. In this embodiment, the first contact surface 1215 is an arc surface, so that no matter how the first rotating arm 121 rotates, the contact between the first rotating arm 121 and the side surface 24 of the locking tongue 20 is always a line contact, which can ensure that the contact area between the two is small enough and the contact area is unchanged, so that the first rotating arm 121 can stably drive the locking tongue 20 to move, and the rotation of the rotating assembly 12 is also smoother.

[0041] Please continue reading Figures 4 to 6 The second rotating arm 123 can rotate and keep against the end surface 22 of the lock tongue 20 during the extension of the lock tongue 20, that is, during the extension of the lock tongue 20, the end surface 22 of the lock tongue 20 always abuts against the second rotating arm 123; the rotation of the second rotating arm 123 can drive the first rotating arm 121 to rotate until it abuts against the side surface 24 of the lock tongue 20 (see Figures 4 to 5 ), so as to reduce the distance from the end face 22 to the bottom face of the receiving cavity 1121, that is, the first rotating arm 121 can rotate with the second rotating arm 123, thereby driving the lock tongue 20 to continue to extend into the receiving cavity 1121. Since the second rotating arm 123 of the rotating assembly 12 can rotate and keep against the end face 22 of the lock tongue 20 during the extension process of the lock tongue 20, the extension of the lock tongue 20 can drive the rotation of the second rotating arm 123, thereby driving the first rotating arm 121 to rotate to abut against the side face 24 of the lock tongue 20, so as to reduce the distance from the end face 22 to the bottom face of the receiving cavity 1121, thereby reducing the gap between the door leaf and the door frame, making the door leaf and the door frame fit more closely, and reducing the shaking of the door leaf.

[0042] The second rotating arm 123 includes a first rotating portion 1232 and a second rotating portion 1234 connected at an angle, wherein the first rotating portion 1232 and the second rotating portion 1234 are roughly rectangular plate structures, wherein a second contact surface 1235 is provided at one end of the second rotating portion 1234 away from the first rotating portion 1232, and the second contact surface 1235 is also an arc surface, so that no matter how the second rotating arm 123 rotates, the contact between the second rotating arm 123 and the end surface 22 of the locking tongue 20 is always a line contact, which can ensure that the contact area between the two is small enough and the contact area remains unchanged, and the rotation of the rotating assembly 12 is also smoother. In this embodiment, the angle between the first rotating portion 1232 and the second rotating portion 1234 is roughly 90°. In other embodiments, the angle between the first rotating portion 1232 and the second rotating portion 1234 can also be an acute angle or an obtuse angle. The first rotating portion 1232 is connected to the first rotating arm 121 , wherein the included angle between the first rotating portion 1232 and the first rotating arm 121 may be 150°, 160°, or 175°, etc., which may be specifically set according to actual conditions.

[0043] The rotating assembly 12 further includes a rotating shaft 125, which is disposed at the joint of the first rotating arm 121 and the second rotating arm 123 and is rotatably disposed in the receiving cavity 1121. The extending direction of the rotating shaft 125 is consistent with the length direction of the first rotating arm 121 and the second rotating arm 123. In this embodiment, the extending direction of the rotating shaft 125 is consistent with the length direction of the housing 11, so that the first rotating arm 121 can contact the side surface 24 of the locking tongue 20 with a larger area, so that the first rotating arm 121 can more easily drive the locking tongue 20 to move.

[0044] See also Figures 7 to 9 The lock body buckle box 10 further includes an adjustment seat 13 and an adjustment member 14. The adjustment seat 13 is arranged in the housing 11. The rotating shaft 125 is rotatably arranged on the adjustment seat 13. The adjustment member 14 is penetrated through the housing 11 and connected with the adjustment seat 13 to drive the adjustment seat 13 to move along the width direction of the housing 11. The adjustment member 14 can drive the adjustment seat 13 to move toward the direction close to the buckle plate 114, so that when the door gap is larger (the length of the lock tongue 20 extending into the receiving cavity 1121 is shorter), the interaction force between the lock tongue 20 and the rotating assembly 12 can be guaranteed. That is to say, even if the length of the lock tongue 20 extending into the receiving cavity 1121 is shorter, the extension of the lock tongue 20 can drive the rotation of the second rotating arm 123, thereby driving the first rotating arm 121 to rotate to abut against the side surface 24 of the lock tongue 20, so as to reduce the distance from the end surface 22 to the cavity bottom surface of the receiving cavity 1121. Therefore, by adjusting the adjusting member 14 , the lock body buckle box 10 can adapt to usage scenarios with different door gap sizes, thereby expanding the application scope of the lock body buckle box 10 .

[0045] See also Fig.10 and Fig.11 The adjustment seat 13 includes a bottom plate 132 and a first connection portion 134 and a second connection portion 136 connected to opposite ends of the bottom plate 132. In this embodiment, the first connection portion 134 and the second connection portion 136 are integrally arranged with the bottom plate 132 to ensure the connection strength between the three. The first connection portion 134 and the second connection portion 136 are both roughly inverted U-shaped structures, so that the adjustment seat 13 is roughly a multi-section continuous bending structure. The adjustment seat 13 is used to install the rotating assembly 12. Specifically, the rotating shaft 125 of the rotating assembly 12 is rotatably connected between the first connection portion 134 and the second connection portion 136.

[0046] The bottom plate 132 is provided with an avoidance opening 1321 , which is used to avoid the rotation of the rotating assembly 12 , thereby preventing the rotating assembly 12 from interfering with the bottom plate 132 during the rotation process, and ensuring that the rotating assembly 12 can rotate smoothly.

[0047] In this embodiment, the adjustment member 14 is passed through the buckle plate 114 and is threadedly connected to the adjustment seat 13, that is, rotating the adjustment member 14 can make the adjustment seat 13 rise or fall, thereby adjusting the height of the rotating component 12 in the receiving cavity 1121 to adapt to different door gap sizes.

[0048] In this embodiment, there are two adjusting members 14, one of which is passed through the buckle plate 114 and connected to the first connecting portion 134, and the other is passed through the buckle plate 114 and connected to the second connecting portion 136. The two adjusting members 14 can ensure that the bottom plate 132 of the adjusting seat 13 is parallel to the bottom surface of the accommodating cavity 1121, thereby avoiding the tilt of the rotating component 12.

[0049] Please continue reading Figure 8 The lock body buckle box 10 further includes an elastic member 16, which is sleeved on the outer periphery of the adjusting member 14 and is disposed between the adjusting seat 13 and the buckle plate 114. Specifically, one end of the elastic member 16 abuts against the first connecting portion 134 (or the second connecting portion 136), so that the rising process of the adjusting seat 13 can be affected by the elastic force of the elastic member 16. By providing the elastic member 16, the adjustment process of the adjusting member 14 can be made smoother, and the phenomenon of the adjusting seat 13 moving up and down can be prevented.

[0050] Please continue reading Fig.10 and Fig.11The lock body buckle box 10 also includes a torsion spring 17, which includes a torsion spring body 172 and a first torsion arm 174 and a second torsion arm 176 extending from the torsion spring body 172 in different directions. The torsion spring body 172 is wound around the rotating shaft 125, the first torsion arm 174 is fixed to the housing 11, and the second torsion arm 176 is against one of the first rotating arm 121 and the second rotating arm 123 to provide a force for the rotation of the rotating assembly 12, so as to facilitate the subsequent closing of the door and continue to drive the lock tongue 20 to move toward the direction close to the bottom surface of the receiving cavity 1121. For example, the lock tongue 20 can drive the rotating assembly 12 to rotate clockwise. When the lock tongue 20 is retracted, the rotating assembly 12 rotates counterclockwise under the action of the torsion spring 17, so that the lock tongue 20 drives the rotating assembly 12 to rotate clockwise next time.

[0051] The lock body buckle box 10 further includes a fixing seat 18, which includes a top plate 181, a first side plate 183 and a second side plate 185. The first side plate 183 and the second side plate 185 are opposite to each other and are both fixed to the side wall of the housing 11. For example, the first side plate 183 and the second side plate 185 are both fixed to the side wall of the housing 11 by screws or by welding. The top plate 181 is connected between the first side plate 183 and the second side plate 185. The top plate 181 is fixedly connected to the buckle plate 114 to fix the buckle plate 114. The top plate 181 can also support the buckle plate 114 to prevent the buckle plate 114 from deforming.

[0052] The lock body buckle box 10 also includes a fastener 19 ( Figure 8 ), the fastener 19 is provided through the top plate 181 and the gusset plate 114. In this embodiment, the fastener 19 is a rivet. In other embodiments, the fastener 19 can also be a screw to fix the top plate 181 and the gusset plate 114.

[0053] In summary, the lock body buckle box 10 provided by the utility model includes a shell 11 and a rotating assembly 12. The shell 11 can specifically accommodate a receiving cavity 1121 of the lock tongue 20. The rotating assembly 12 is rotatably arranged in the receiving cavity 1121, and the rotating assembly 12 includes a first rotating arm 121 and a second rotating arm 123 that are fixedly connected. Since the second rotating arm 123 of the rotating assembly 12 can rotate and keep against the end face 22 of the lock tongue 20 during the extension process of the lock tongue 20, the extension of the lock tongue 20 can drive the rotation of the second rotating arm 123, thereby driving the first rotating arm 121 to rotate to against the side face 24 of the lock tongue 20, so as to reduce the distance from the end face 22 to the bottom surface of the receiving cavity 1121, thereby reducing the gap between the door leaf and the door frame, so that the door leaf and the door frame are more closely matched, and the shaking of the door leaf is reduced. The lock body buckle box 10 uses the end face 22 of the lock tongue 20 as a power source, and then transmits the force to the side face 24 of the lock tongue 20. The lock tongue 20 will only be loaded when the door leaf is closed, the lock tongue 20 is almost completely in place and the end face 22 touches the rotating shaft 125. Compared with the method in which the side face 24 of the lock tongue 20 is always squeezed, it can effectively reduce power consumption and load force.

[0054] In the present invention, unless otherwise clearly specified or limited, the term "assembly" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be internal communication between two elements, it can be only surface contact, or it can be connected through surface contact of an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as a specific reference or special structure. The description of the term "some embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the present invention, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the present invention and the features of the different embodiments or examples without contradiction.

[0056] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A lock body buckle box, characterized in that: A lock tongue adapted to receive a lock body, the lock tongue comprising a connected end face and a side face, the lock body buckle box comprising: A housing, wherein the housing is specifically capable of accommodating a receiving cavity of the locking tongue; and A rotating assembly, which is rotatably disposed in the receiving cavity, and includes a first rotating arm and a second rotating arm that are fixedly connected, the second rotating arm being able to rotate and remain against the end face of the locking tongue during the extension of the locking tongue, and the rotation of the second rotating arm being able to drive the first rotating arm to rotate until it is against the side face of the locking tongue, so as to reduce the distance from the end face to the bottom face of the receiving cavity.

2. The lock body buckle box according to claim 1, characterized in that: The first rotating arm has a first contact surface away from the second rotating arm, the first contact surface can contact the side surface of the locking tongue, and the first contact surface is an arc surface.

3. The lock box according to claim 1, characterized in that: The second rotating arm includes a first rotating portion and a second rotating portion connected at an angle, the first rotating portion is connected to the first rotating arm, and an end of the second rotating portion away from the first rotating portion is provided with a second contact surface, and the second contact surface is an arc surface.

4. The lock box according to claim 1, characterized in that: The rotating assembly also includes a rotating shaft, which is passed through the joint of the first rotating arm and the second rotating arm and is rotatably arranged in the receiving cavity. The shell has a length direction, and the extension direction of the rotating shaft is consistent with the length direction of the shell.

5. The lock body buckle box according to claim 4, characterized in that: The lock body buckle box also includes an adjustment seat and an adjustment member, wherein the adjustment seat is arranged in the shell, the rotating shaft is rotatably arranged on the adjustment seat, and the adjustment member passes through the shell and is connected to the adjustment seat to drive the adjustment seat to move along the width direction of the shell.

6. The lock body buckle box according to claim 5, characterized in that: The shell comprises a bottom shell and a buckle plate, the bottom shell is provided with the receiving cavity, the buckle plate cover is provided on the bottom shell, the buckle plate is provided with an avoidance hole for the locking tongue to extend into, and the adjusting member is passed through the buckle plate and is threadedly connected with the adjusting seat.

7. The lock box according to claim 6, characterized in that: The lock body buckle box also includes an elastic member, which is sleeved on the outer periphery of the adjusting member and is arranged between the adjusting seat and the buckle plate.

8. The lock box according to claim 6, characterized in that: The adjustment seat includes a base plate and a first connecting portion and a second connecting portion connected to opposite ends of the base plate. The number of the adjustment members is two, one of which is passed through the buckle plate and connected to the first connecting portion, and the other of which is passed through the buckle plate and connected to the second connecting portion.

9. The lock box according to claim 4, characterized in that: The lock body buckle box also includes a torsion spring, which includes a torsion spring body and a first torsion arm and a second torsion arm extending from the torsion spring body in different directions. The torsion spring body is wound around the rotating shaft, the first torsion arm is fixed to the shell, and the second torsion arm is against one of the first rotating arm and the second rotating arm.

10. The lock body buckle box according to any one of claims 1 to 9, characterized in that: The lock body buckle box also includes a fixed seat, which includes a top plate, a first side plate and a second side plate. The first side plate and the second side plate are opposite to each other and are fixedly connected to the side walls of the shell. The top plate is connected between the first side plate and the second side plate. The shell includes a bottom shell and a buckle plate. The bottom shell is provided with the accommodating cavity. The buckle plate cover is provided on the bottom shell and is fixedly connected to the top plate.

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