Lock catch and display device

Abstract

The utility model provides a lock catch and a display device, and the lock catch comprises a lock seat, a lock pin and a positioning piece. The lock seat is used for being connected with a first to-be-connected piece, a locking block is movably installed in the lock seat, and the locking block is provided with a locking position and a releasing position. The lock pin is used for being connected with a second to-be-connected piece, the lock pin is provided with a connecting plug inserted into the lock seat, and the connecting plug is provided with a limiting part and an avoiding part; the lock pin is further configured to be rotatable between a lock angle and a release angle. And the positioning piece is connected with the lock pin and is used for keeping the lock pin at a locking angle. When the locking block is located at the locking position and the lock pin is located at the locking angle, the limiting part corresponds to the locking block so as to prevent the lock pin from being separated from the lock seat; when the locking block is located at the locking position and the lock pin is located at the release angle, the avoiding part corresponds to the locking block, and the lock pin avoids the locking block through the avoiding part so that the lock pin can be separated from the lock seat. And when the locking block is in the release position, the lock pin can be separated from the lock seat.

Description

Technical Field

[0001] The present application relates to the technical field of display screens, and in particular to a lock and display device. Background Art

[0002] In the field of display technology, in order to facilitate disassembly, assembly and maintenance, the LED display module is mainly fixed to the box body by a detachable lock. However, the existing detachable lock can only be disassembled from a single direction, that is, the disassembly operation can only be performed from the front of the LED display module to achieve front maintenance (i.e. maintenance and repair from the front of the box body), or the disassembly operation can only be performed from the back of the box body to achieve rear maintenance (i.e. maintenance and repair from the back of the box body), but it is impossible to perform front and back bidirectional disassembly, and thus cannot meet the complex and changeable maintenance needs. Utility Model Content

[0003] The embodiment of the present application provides a lock buckle to solve the technical problem that the existing lock buckle cannot achieve two-way disassembly.

[0004] To achieve the above-mentioned purpose, the lock buckle proposed in the present application includes a lock seat, a lock pin and a positioning member. The lock seat is used to connect with the first member to be connected, and a locking block is movably installed in the lock seat, and the locking block has a locking position and a release position. The lock pin is used to connect with the second member to be connected, and the lock pin has a plug connector plugged into the lock seat, and the plug connector is provided with a limit portion and an avoidance portion; the lock pin is also configured to be able to rotate between a locking angle and a release angle. The positioning member is connected to the lock pin, and the positioning member is used to keep the lock pin at the locking angle.

[0005] When the locking block is at the locking position and the locking pin is at the locking angle, the limiting portion corresponds to the locking block, and the locking block prevents the limiting portion from moving in a direction away from the lock seat;

[0006] When the locking block is at the locking position and the locking pin is at the release angle, the avoidance portion corresponds to the locking block, and the locking pin avoids the locking block through the avoidance portion so as to be able to detach from the lock seat;

[0007] When the locking block is in the releasing position, the locking pin can be disengaged from the locking seat.

[0008] Optionally, in one embodiment, the locking pin also includes a mating shaft segment, and the plug connector is connected to one end of the mating shaft segment in the axial direction; the surface of the limiting portion is a convex arc surface, and the surface of the avoidance portion is an avoidance plane, the convex arc surface and the avoidance plane are connected along the circumferential direction of the plug connector, and the surface of the mating shaft segment is at least recessed relative to the convex arc surface.

[0009] Optionally, in one embodiment, the lock seat is provided with a locking cavity and a socket connected to the locking cavity, the socket is used for the plug connector to be inserted into the locking cavity; the locking block is movably installed in the locking cavity, and there are multiple locking blocks, and the multiple locking blocks are evenly arranged along the circumferential direction of the socket; the limiting portion and the avoidance portion are respectively adapted to the multiple locking blocks in quantity, and in the circumferential direction of the plug connector, one avoidance portion is connected between any two adjacent limiting portions.

[0010] Optionally, in one embodiment, the angle that the locking pin needs to rotate when switching between the locking angle and the release angle is less than 360° and greater than or equal to 90°.

[0011] Optionally, in one embodiment, the locking block is a magnetic ball block, and a reset piece is further provided in the locking cavity, wherein the reset piece is used to drive the locking block to move toward the locking position, and the locking block can overcome the elastic force of the reset piece under the action of an external magnetic force and move to the release position; the mating shaft section is recessed with an annular groove, and the annular groove is an arc-shaped recessed to adapt to the locking block; the avoidance portion includes a first avoidance area and a second avoidance area, the first avoidance area is connected between two adjacent limiting portions along the circumferential direction of the plug connector, and the second avoidance area extends from the first avoidance area into the annular groove, and the second avoidance area is flush with the bottom of the annular groove.

[0012] Optionally, in one embodiment, a guide portion is connected to a side of each of the limiting portions away from the annular groove, and while the guide portion extends in a direction away from the limiting portion, it gradually inclines toward a central axis of the locking pin; the avoidance portion also includes a third avoidance area, and the third avoidance area is connected to a side of the first avoidance area away from the second avoidance area, and the third avoidance area is connected between two adjacent guide portions, and any position on the guide portion is located on the same side of the plane where the third avoidance area is located.

[0013] Optionally, in one embodiment, the locking cavity comprises a limiting cavity and an avoidance cavity which are interconnected, the limiting cavity is connected to the insertion hole; in the axial direction of the insertion hole, the avoidance cavity is located on a side of the limiting cavity away from the insertion hole, and in the radial direction of the insertion hole, the avoidance cavity is located on a side of the limiting cavity away from the insertion hole;

[0014] When the locking block is located in the limiting cavity, the locking block is in the locking position;

[0015] When the locking block is acted upon by an external magnetic force and presses the reset member, the locking block moves into the avoidance cavity and switches to the release position;

[0016] And / or, a pressure plate is further provided in the locking cavity, the reset member presses the locking block through the pressure plate, a limiting groove is further provided on the pressure plate at a position corresponding to the locking block, and the locking block is partially sunk into the limiting groove.

[0017] Optionally, in one embodiment, the locking pin also includes a sealing shaft segment, which is connected to a side of the mating shaft segment away from the plug connector, and a sealing ring groove is recessed on the outer periphery of the sealing shaft segment; when the locking pin is inserted into the lock seat, the sealing ring groove is located in the socket, and the sealing ring groove is used to install a sealing ring.

[0018] Optionally, in one embodiment, the lock further includes a fixing frame and a positioning member; the locking pin is rotatably mounted on the fixing frame to be connected to the second member to be connected through the fixing frame; the positioning member is a torsion spring and surrounds the outside of the locking pin, one end of the positioning member is fixed relative to the locking pin, and the other end is fixed relative to the fixing frame.

[0019] Optionally, in one embodiment, the lock further includes a screw cap, the screw cap cover is arranged outside the positioning member, and the screw cap is fixedly connected to the locking pin; one end of the positioning member is fixed to the screw cap, and the other end is fixed to the fixing frame.

[0020] Optionally, in one embodiment, the fixed frame is provided with an angle limit groove, the angle limit groove extends along the circumferential direction of the locking pin, and the angle limit groove has a relative locking end and a release end; the locking pin or the screw cap is provided with an angle limit block, and the angle limit block is located in the angle limit groove; when the angle limit block abuts against the locking end as the locking pin or the screw cap rotates, the locking pin is at the locking angle; when the angle limit block abuts against the release end as the locking pin or the screw cap rotates, the locking pin is at the release angle.

[0021] Optionally, in one embodiment, when the angle limit block abuts against the locking end, the positioning member also has a tendency to drive the angle limit block to rotate in a direction away from the release end.

[0022] Optionally, in one embodiment, the angle limit block is arranged on the screw cap, and a shift block is protrudingly provided on the outer circumferential surface of the screw cap at a position corresponding to the angle limit block, and the shift block protrudes relative to other surfaces of the screw cap; and / or, a plurality of anti-slip protrusions are provided on the outer circumferential surface of the screw cap, and the plurality of anti-slip protrusions are arranged at intervals along the circumferential direction of the screw cap.

[0023] The present application also proposes a display device, which includes a display module, a fixed box and the lock described in any one of the above embodiments, wherein the lock seat is installed on the display module, the locking pin is installed on the fixed box, and the locking pin is inserted into the lock seat to fix the display module on the fixed box.

[0024] When the lock provided in the present application is used to connect a display device, the display module in the display device can be used as the first part to be connected, and the fixed box can be used as the second part to be connected, that is, the lock seat can be installed on the display module, and the locking pin can be installed on the fixed box.

[0025] When assembly is required, the plug connector of the locking pin can be plugged into the lock seat, and the locking block in the lock seat can be switched to the locking position, and the locking pin can be rotated to the locking angle. At this time, the locking block can prevent the limiting part on the plug connector from detaching from the lock seat, that is, the locking pin cannot detach from the lock seat, thereby achieving a fixed connection between the display module and the fixed box.

[0026] When front maintenance is required, a disassembly operation can be performed on the lock seat, that is, the locking block in the lock seat can be switched to the release position. At this time, the locking pin can be disengaged from the lock seat, and then at least part of the display module can be removed from the fixed box to achieve front maintenance.

[0027] When post-maintenance is required, the disassembly operation can be performed on the lock pin, that is, the lock pin can be rotated to a release angle. At this time, the lock pin can avoid the locking block in the lock seat through the avoidance portion on the plug connector, and then can be pulled out from the lock seat, that is, the fixed box can be removed from the display module to achieve post-maintenance.

[0028] From the above, it can be understood that the lock provided in the present application can be disassembled from the lock seat side or from the lock pin side, realizing front and back two-way disassembly, so that the connected display device can be maintained from both the front and the back, meeting complex and changeable maintenance needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0030] Figure 1 This is a schematic structural diagram of an embodiment of a lock of the present application;

[0031] Figure 2 This is a structural exploded diagram of an embodiment of the lock of the present application;

[0032] Figure 3 This is a structural schematic diagram of an embodiment of a lock pin in the lock buckle of the present application;

[0033] Figure 4 This is a structural schematic diagram of an embodiment of a lock seat in the lock buckle of the present application;

[0034] Figure 5 It is a structural schematic diagram of an embodiment of the present invention when the locking block in the lock buckle is in the locking position and the locking pin is at the locking angle;

[0035] Figure 6 It is a structural schematic diagram of an embodiment of the present invention when the locking block in the lock buckle is in the locking position and the locking pin is in the release angle;

[0036] Figure 7 This is a structural schematic diagram of an embodiment of the present invention when the locking block in the lock buckle is in the release position;

[0037] Figure 8 It is a partial structural schematic diagram of another angle when the locking block in the lock buckle of the present application is in the locking position and the locking pin is at the locking angle;

[0038] Fig. 9 It is a partial structural schematic diagram of another angle when the locking block in the lock buckle of the present application is in the locking position and the locking pin is in the release angle;

[0039] Fig.10 This is a structural schematic diagram of an embodiment of a screw cap in the lock buckle of the present application;

[0040] Fig.11 It is a schematic structural diagram of an embodiment of the display device of the present application before being assembled.

[0041] Description of Figure Numbers:

[0042]

[0043]

[0044] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0046] In the existing display installation technology, in order to facilitate disassembly and maintenance, the display module is mainly fixed to the box body by a detachable lock. Specifically, Fig.11 For reference, some existing detachable locks mainly include a lock base 10 and a lock pin 20, wherein the lock base 10 is fixed on the display module 200, and the lock pin 20 is fixed on the fixed box 300. Figure 5 For reference, the lock seat 10 is provided with a socket 13 for inserting the locking pin 20, and a plurality of steel balls (i.e., locking blocks 11) are provided in the lock seat. A spring (i.e., a reset member 14) is provided on the side of the plurality of steel balls facing away from the socket 13. The spring is always in a compressed state and squeezes the plurality of steel balls so as to keep the plurality of steel balls in a position close to the socket 13.

[0047] When the lock pin 20 is inserted into the lock base 10 through the insertion hole 13, the multiple steel balls just clamp the lock pin 20, so that the lock pin 20 cannot be pulled out of the lock base 10, thereby achieving a fixed connection between the display module 200 and the fixed box 300.

[0048] Please repeat Figure 7 For reference, when disassembly and maintenance are required, a magnet can be used to magnetically attract multiple steel balls from the outside of the display module 200. Specifically, the magnet is placed on the side of the compression spring facing away from the steel balls, so that the steel balls can compress the spring and disengage from the locking pin 20. In this way, the locking pin 20 can be pulled out of the lock seat 10, and the display module 200 can be removed from the fixed box 300 for maintenance.

[0049] However, the above lock can only be disassembled from a single direction, that is, it can only be disassembled from the front side of the display module 200 (that is, the side of the display module 200 away from the fixed box 300) by means of magnet attraction. As the application scenarios of display screens are constantly changing and increasing, many existing display screens need to be able to be disassembled in both directions during installation. That is, in addition to being able to remove at least part of the structure of the display module 200 from the fixed box 300 from the front side of the display module 200, it is also necessary to be able to remove the fixed box 300 from the display module 200 from the back side of the fixed box 300 (that is, the side of the fixed box 300 away from the display module 200). Obviously, the above lock cannot meet the requirement of two-way disassembly.

[0050] Therefore, the embodiment of the present application provides a lock buckle 100, which can be disassembled by switching the locking block 11 in the lock seat 10 to the release position, and can also be disassembled by the avoidance portion 212 on the locking pin 20 to avoid the locking block 11, thereby solving the problem that the existing lock buckle cannot achieve two-way disassembly.

[0051] The lock buckle 100 of the present application will be described in detail below with reference to the accompanying drawings.

[0052] like Figure 2 As shown, the lock buckle 100 mainly includes a lock seat 10 and a lock pin 20 .

[0053] The lock base 10 is used to connect with the first to-be-connected member, and a locking block 11 is movably installed in the lock base 10, and the locking block 11 has a locking position and a release position. Fig.11 When the lock 100 of the present application is applied to the assembly of the display device 1000, the first part to be connected may be the display module 200. Fig.11 In the structural scheme shown, the display module 200 mainly includes a display screen 210 and a module bottom shell 220. The display screen 210 is mounted on the module bottom shell 220, and the lock base 10 is mounted on the module bottom shell 220. It should be noted here that the lock base 10 can be connected to the first part to be connected by screw connection, clamping, bonding, welding, etc., or it can be integrally formed with the first part to be connected, for example, a part of the shell of the module bottom shell 220 forms the lock base 10. In short, the connection method between the lock base 10 and the first part to be connected is not limited, and the specific connection method can be flexibly selected according to needs. For example, in this embodiment, Figure 2 As shown, the lock base 10 is provided with a screw hole 17, so that it can be fixed to the first to-be-connected member by means of screw connection.

[0054] like Figure 4 As shown, Figure 4 for Figure 2 The lock base 10 is a view at another angle, wherein the lock base 10 is provided with a locking cavity 12 and a plug hole 13 communicating with the locking cavity 12, and the plug hole 13 is used for inserting the plug connector 21 of the lock pin 20 into the locking cavity 12, as shown in FIG. Figure 5 As shown, the locking block 11 is movably installed in the locking cavity 12. In this embodiment, the locking block 11 is in the shape of a magnetic ball, and a reset member 14 is further provided in the locking cavity 12. The reset member 14 is specifically a compression spring, and one end of the reset member 14 directly or indirectly squeezes the locking block 11, and the other end abuts against the cavity wall of the locking cavity 12 or abuts against the first part to be connected (i.e., the module bottom shell 220). The reset member 14 is always in a compressed state in the locking cavity 12 to push the locking block 11 to the locking position or keep the locking block 11 in the locking position. Because the locking block 11 is in the shape of a magnetic ball, the locking block 11 overcomes the elastic force of the reset member 14 under the action of an external magnetic force (which can be generated by a magnetic suction tool) and moves to the release position.

[0055] For the locking position and the release position defined in this application, Figure 5 As shown, when the locking block 11 can prevent the limiting portion 211 of the locking pin 20 from approaching the insertion hole 13, thereby preventing the locking pin 20 from being separated from the lock seat 10, the position of the locking block 11 is the locking position. Figure 7As shown, when the locking block 11 does not interfere with the locking pin being inserted into or released from the lock seat 10 , the position of the locking block 11 is the release position.

[0056] Specifically, in one embodiment, if Figure 4 As shown, the lock base 10 includes a docking top plate 16, and the plug hole 13 is arranged on the docking top plate 16. The locking cavity 12 in the lock base 10 includes a limiting cavity 121 and an avoidance cavity 122. The limiting cavity 121 is connected with the plug hole 13, and the avoidance cavity 122 is not only located on a side of the limiting cavity 121 away from the plug hole 13 along the axial direction of the plug hole 13, but also located on a side of the limiting cavity 121 away from the plug hole 13 along the radial direction of the plug hole 13.

[0057] The locking block 11 is a magnetic spherical shape and is provided with two, such as Figure 5 As shown, when the two locking blocks 11 are pushed into the limiting cavity 121 by the reset member 14 and abut against the docking top plate 16, the limiting portion 211 on the locking pin 20 is located on the side of the locking block 11 away from the insertion hole 13, so that the two locking blocks 11 can limit the locking pin 20 from being separated from the lock seat 10. At this time, the position of the locking block 11 is the locking position.

[0058] like Figure 7 As shown, when the two locking blocks 11 overcome the elastic force of the reset member 14 under the action of the external magnetic force and move into the avoidance cavity 122, the two locking blocks 11 are respectively located on both sides of the two limiting portions 211, and the distance between the two locking blocks 11 is greater than the outer diameter of the locking pin 20 at the two limiting portions 211, so that the locking pin 20 can freely detach from the lock seat 10, and the position of the locking block 11 is the release position.

[0059] Of course, in other embodiments, the locking block 11 in the lock seat 10 can also be electrically controlled to achieve movement and switching between the locking position and the release position. The specific electric control structure can be designed by yourself, as long as the locking block 11 can be moved and switched between the locking position and the release position. In addition, the shape of the locking block 11 is not limited to a spherical shape, and can also be a square block, a cone block or other shapes, as long as it can effectively prevent the lock pin 20 from leaving the lock seat 10.

[0060] The locking pin 20 is used to connect with the second member to be connected, and Figure 2 As shown, the lock pin 20 has a plug connector 21 plugged into the lock base 10, and the plug connector 21 is provided with a limit portion 211 and an avoidance portion 212. Specifically, when the lock buckle 100 of the present application is applied to the assembly of the display device 1000, reference can be made to Fig.11The second member to be connected may be a fixed box 300, and the locking pin 20 may be directly connected to the fixed box 300, or indirectly connected to the fixed box 300 through an intermediate member (such as a fixing frame 30). At the same time, the locking pin 20 is also configured to be rotatable relative to the second member to be connected, that is, during assembly, the locking pin 20 is rotatably mounted on the second member to be connected or the intermediate member so as to be rotatable between a locking angle and a release angle.

[0061] It should be noted that, in order to ensure the connection stability, the locking pin 20 can be maintained at the locking angle by the friction between it and the second member to be connected or the fixing frame 30, or a positioning mechanism (such as Figure 2 The locking pin 20 is provided with a positioning member 40 as shown to keep the locking pin 20 at the locking angle in the absence of other external forces.

[0062] like Figure 5 and Figure 6 As shown, the lock pin 20 is plugged into the lock base 10 through the plug connector 21, and the plug connector 21 is provided with a limit portion 211 and an avoidance portion 212. The limit portion 211 is used to interfere with the locking block 11 to limit the lock pin 20 from being separated from the lock base 10, thereby ensuring a stable connection between the first to-be-connected component (display module 200) and the second to-be-connected component (fixed box 300). The avoidance portion 212 is used to avoid the locking block 11, so that the lock pin 20 can release the restriction of the locking block 11 and be separated from the lock base 10.

[0063] Specifically, in this embodiment, if Figure 5 As shown, when the locking block 11 is in the locking position and the locking pin 20 is at the locking angle, the limiting portion 211 corresponds to the locking block 11. Specifically, the limiting portion 211 is located on the side of the locking block 11 away from the insertion hole 13, and the limiting portion 211 and the locking block 11 have an overlapping area in their positive projection on the docking top plate 16 (i.e., projected toward the docking top plate 16 along the axial direction of the insertion hole 13). At this time, the locking block 11 can prevent the limiting portion 211 from moving in the direction of disengaging from the lock seat 10, that is, the locking pin 20 cannot disengage from the lock seat 10.

[0064] like Figure 6 As shown, when the locking block 11 is in the locking position and the locking pin 20 is at the release angle, the avoidance portion 212 corresponds to the locking block 11. Specifically, the avoidance portion 212 is located on the side of the locking block 11 away from the insertion hole 13, and the avoidance portion 212 and the positive projection of the locking block 11 on the docking top plate 16 (that is, the projection onto the docking top plate 16 along the axial direction of the insertion hole 13) have no overlapping area, that is, the locking block 11 cannot prevent the avoidance portion 212 from approaching the insertion hole 13. At this time, the locking pin 20 avoids the locking block 11 through the avoidance portion 212, and can then be separated from the lock seat 10.

[0065] like Figure 7As shown, when the locking block 11 is in the release position, there is no overlapping area between the positive projection of the locking block 11 and any part of the plug connector 21 on the docking top plate 16 (i.e., the projection onto the docking top plate 16 along the axial direction of the socket 13), so the locking pin 20 can be disengaged from the lock seat 10.

[0066] Therefore, it can be understood that when the lock 100 provided by the present application is applied to the connection of the display device 1000, reference can be made to Fig.11 The display module 200 in the display device 1000 can be used as the first part to be connected, and the fixed box 300 can be used as the second part to be connected, that is, the lock seat 10 can be installed on the display module 200, and the lock pin 20 can be installed on the fixed box 300.

[0067] When assembly is required, Figure 5 As shown, the plug connector 21 of the locking pin 20 can be plugged into the lock base 10, and the locking block 11 in the lock base 10 can be switched to the locking position, and the locking pin 20 can be rotated to the locking angle. At this time, the locking block 11 can prevent the limiting portion 211 on the plug connector 21 from detaching from the lock base 10, that is, the locking pin 20 cannot detach from the lock base 10, thereby realizing a fixed connection between the display module 200 and the fixed box 300.

[0068] When pre-maintenance is required, Figure 7 As shown, the disassembly operation can be performed on the lock seat side, that is, the locking block 11 in the lock seat 10 can be switched to the release position. At this time, the locking pin 20 can be separated from the lock seat 10, and then at least part of the display module 200 can be removed from the fixed box 300 to achieve front maintenance.

[0069] When post-maintenance is required, Figure 6 As shown, the disassembly operation can be performed on the lock pin side, that is, the lock pin 20 can be rotated to make the lock pin 20 rotate to the release angle. At this time, the lock pin 20 can avoid the locking block 11 in the lock seat 10 through the avoidance portion 212 on the plug connector 21, and then can be pulled out from the lock seat 10, that is, the fixed box 300 can be removed from the display module 200 to achieve post-maintenance.

[0070] In summary, the lock buckle 100 provided in the present application can be disassembled from the lock seat 10 side or the lock pin 20 side, realizing front-to-back bidirectional disassembly, so that the connected display device 1000 can be maintained from both the front and the back, meeting complex and changeable maintenance needs.

[0071] Optionally, in one embodiment, as Figure 3As shown, the lock pin 20 also includes a mating shaft section 22, the plug connector 21 is connected to one end of the mating shaft section 22 in the axial direction, and the other end of the mating shaft section 22 in the axial direction extends toward the second member to be connected. The surface of the limiting portion 211 is a convex arc surface, and the surface of the avoidance portion 212 is an avoidance plane. The convex arc surface and the avoidance plane are connected along the circumferential direction of the plug connector 21, and the surface of the mating shaft section 22 is at least concave relative to the convex arc surface, so that a concave space capable of accommodating the locking block 11 is formed between the limiting portion 211 and the mating shaft section 22.

[0072] That is, in this embodiment, the plug connector 21 is a cylindrical structure with at least one side flattened, the position on the plug connector 21 that is not flattened is the limit portion 211 with a convex arc surface, and the position on the plug connector 21 that is flattened is the avoidance portion 212 with a avoidance plane surface. It can be understood that the configuration of the plug connector 21 in this embodiment can make the structure of the plug connector 21 simple and easy to produce. As long as a cylindrical plug connector 21 is provided and a plane is cut out on one side of the plug connector 21, the limit portion 211 and the avoidance portion 212 can be formed. In addition, because the plug connector 21 in this embodiment, no matter to which angle the plug connector 21 is rotated, the size of the plug connector 21 in all directions will not be greater than the outer diameter of the convex arc surface, so the plug hole 13 on the lock seat 10 can be designed as a simple round hole, thereby simplifying the structure and production process of the lock seat 10.

[0073] Of course, in other embodiments, the surface of the avoidance portion 212 may also be a concave arc surface, which can just avoid the spherical locking block 11. Alternatively, the plug connector 21 may also be in the shape of a rectangular block, and the two ends of the plug connector 21 in the length direction protrude relative to the surface of the mating shaft section 22, thereby forming a limit portion 211. The two sides of the plug connector 21 in the width direction are flush or concave relative to the surface of the mating shaft section 22 (or the two sides of the plug connector 21 in the width direction protrude less than the mating shaft section 22), thereby forming the avoidance portion 212. In short, the specific formation methods of the limit portion 211 and the avoidance portion 212 can be flexibly changed according to the above embodiments, as long as the limit portion 211 can be blocked by the locking block 11 on the side away from the jack 13 when the lock pin 20 rotates to the locking angle, and the avoidance portion 212 can avoid the locking block 11 when the lock pin 20 rotates to the release angle.

[0074] It should be noted that the number of the limiting portion 211 and the avoiding portion 212 can be one or more. For example, in one embodiment, Figure 2 , Figure 5 and Figure 6As shown, there are multiple locking blocks 11, and the multiple locking blocks 11 are evenly arranged along the circumferential direction of the plug hole 13. The limiting parts 211 and the avoiding parts 212 are respectively adapted to the multiple locking blocks 11 in quantity, and in the circumferential direction of the plug connector 21, there is an avoiding part 212 connected between any two adjacent limiting parts 211. Figure 5 As shown, when the locking block 11 is in the locking position and the locking pin 20 is at the locking angle, the plurality of limiting portions 211 correspond to the plurality of locking blocks 11 one by one; Figure 6 As shown, when the locking block 11 is at the locking position and the locking pin 20 is at the release angle, the plurality of avoidance portions 212 correspond to the plurality of locking blocks 11 one by one.

[0075] It can be understood that by providing multiple locking blocks 11 and multiple limiting portions 211, the lock pin 20 can be more stably clamped in the lock base 10, thereby making the connection between the display module 200 and the fixed box 300 more stable. On the basis of providing multiple locking blocks 11, by providing multiple avoiding portions 212, the lock pin 20 can avoid multiple locking blocks 11 at the same time, thereby making the lock pin 20 able to smoothly detach from the lock base 10.

[0076] It should be noted that the number of the locking block 11, the limiting portion 211 and the avoiding portion 212 can be flexibly designed according to the needs. Figure 8 and Fig. 9 As shown, the number of the locking block 11, the limiting portion 211 and the avoiding portion 212 are all two, which can not only ensure the stable engagement of the locking pin 20 in the lock seat 10, but also avoid the structure being too complicated.

[0077] It should also be noted that the "circumferential direction of the plug connector" mentioned above can refer to Figure 3 As shown in the circumferential direction arrow, the circumferential direction of the plug connector is the direction of rotation around the central axis 23 of the locking pin.

[0078] Optionally, in one embodiment, the angle that the locking pin 20 needs to rotate when switching between the locking angle and the release angle is less than 360° and greater than or equal to 90°, for example, Figure 8 or Fig. 9 As shown, the number of the locking block 11, the limiting portion 211 and the avoiding portion 212 are all two, and the two locking blocks 11 are spaced and opposite to each other along the first direction. Figure 8 As shown, when the locking pin 20 is at the locking angle, the two limiting portions 211 are opposite to each other along the first direction, and the two limiting portions 211 correspond to the two locking blocks 11 one by one, and the two avoiding portions 212 are opposite to each other along the second direction. Fig. 9As shown, when the lock pin 20 rotates to the locking angle, the two avoidance portions 212 are opposite to each other along the first direction, and the two avoidance portions 212 correspond to the two locking blocks 11 one by one, and the two limit portions 211 are opposite to each other along the second direction. The first direction and the second direction are perpendicular to each other, and the angle required for the lock pin 20 to rotate between the locking angle and the release angle is 90°.

[0079] Of course, in other embodiments, the number of the locking block 11, the limiting portion 211 and the avoidance portion 212 can be one respectively, and by setting the positional relationship of the locking block 11, the limiting portion 211 and the avoidance portion 212, the locking pin 20 needs to rotate more than 90° to switch from the locking angle to the release angle. For example, the angle required for the locking pin 20 to rotate from the locking angle to the release angle can be designed to be 120°, 150°, 180°, 240°, 270°, 300°, etc.

[0080] It can be understood that in this embodiment, the angle required for the lock pin 20 to rotate from the locking angle to the release angle is less than 360° and greater than or equal to 90°, that is, the lock pin 20 needs to rotate at least 90° to switch from the locking angle to the release angle. This can prevent the lock pin 20 from accidentally rotating to the release angle and detaching from the lock seat 10 due to vibration, bump, etc., thereby improving the connection stability and safety of the lock buckle 100.

[0081] Optionally, in one embodiment, as Figure 3 As shown, the mating shaft section 22 is provided with an annular groove 221, which is arc-shaped and recessed to fit with the spherical locking block 11. Figure 5 As shown, when the lock pin 20 is inserted into the lock seat 10 and the locking block 11 is in the locked position, the locking block 11 is just stuck in the annular groove 221, which not only can more stably hold the lock pin 20, but also makes the structure of the lock buckle 100 more compact. Figure 3 The avoidance portion 212 includes a first avoidance area 2121 and a second avoidance area 2122. The first avoidance area 2121 is connected between two adjacent limiting portions 211 along the circumferential direction of the plug connector 21. The second avoidance area 2122 extends from the first avoidance area 2121 to the annular groove 221, and the second avoidance area 2122 is flush with the bottom of the annular groove 221. It can be understood that when the spherical locking block 11 is engaged in the annular groove 221, the locking block 11 at most abuts against the bottom of the annular groove 221. Because the second avoidance area 2122 of the avoidance portion 212 extends into the annular groove 221 and is flush with the bottom of the annular groove 221, the avoidance portion 212 will not interfere with the locking block 11 during the rotation of the locking pin 20, thereby ensuring that the locking block 11 can accurately and smoothly correspond to the avoidance portion 212, and further ensuring that the locking pin 20 can avoid the locking block 11 and disengage from the lock seat 10.

[0082] Optionally, in one embodiment, as Figure 3 As shown, a guide portion 213 is further connected to one side of each limiting portion 211 away from the annular groove 221. The guide portion 213 gradually tilts toward the central axis 23 of the lock pin 20 while extending in a direction away from the limiting portion 211. It can be understood that before the lock pin 20 is inserted into the lock seat 10, the locking block 11 is kept in the locked position under the action of the reset member 14, which will form a certain resistance to the insertion of the limiting portion 211. Therefore, by arranging the guide portion 213 at the position corresponding to the limiting portion 211, the lock pin 20 can be inserted into the lock seat 10 more smoothly.

[0083] On the basis of providing the guide portion 213, in order to avoid the interference between the guide portion 213 and the locking block 11 during disassembly, thereby affecting the situation where the lock pin 20 is separated from the lock seat 10, in this embodiment, Figure 3 As shown, the avoidance portion 212 also includes a third avoidance area 2123, which is connected to the side of the first avoidance area 2121 away from the second avoidance area 2122, and the third avoidance area 2123 is connected between two adjacent guide portions 213, and any position on the guide portion 213 is located on the same side of the plane where the third avoidance area 2123 is located. That is, it is ensured that the guide portion 213 will not protrude relative to the surface of the avoidance portion 212 to the side where the locking block 11 is located, and then when the lock pin 20 is separated from the lock seat 10 along the axial direction of the insertion hole 13, it is ensured that the guide portion 213 will not interfere with the locking block 11, so that the lock pin 20 can be smoothly separated from the lock seat 10 and disassembled.

[0084] It should be noted here that Figure 3 The dotted line between the first avoidance area 2121 and the second avoidance area 2122 , and the dotted line between the first avoidance area 2121 and the third avoidance area 2123 are both imaginary lines, and are not physical structures on the plug connector 21 .

[0085] Optionally, in one embodiment, as Figure 2 or Figure 5 As shown, a pressing plate 15 is further provided in the locking cavity 12, and the pressing plate 15 is located between the locking block 11 and the reset member 14. The reset member 14 presses the locking block 11 through the pressing plate 15, so that the force on the locking block 11 can be more uniform, and thus the locking block 11 can be more stably switched between the locking position and the release position. Figure 2As shown, a limiting groove 151 is also provided at the position corresponding to the locking block 11 on the pressure plate 15, and the locking block 11 is partially immersed in the limiting groove 151, which can better limit the movement of the locking block 11 in the radial direction of the locking pin 20, so that the movement of the locking block 11 is smoother, and it can also prevent the locking block 11 from hitting the locking pin 20 or the lock seat 10 due to shaking along the radial direction of the locking pin 20.

[0086] Optionally, in one embodiment, the lock pin 20 further includes a sealing shaft section, which is connected to the side of the mating shaft section 22 away from the plug connector 21, and a sealing ring groove is concavely provided on the outer circumference of the sealing shaft section; when the lock pin 20 is plugged into the lock base 10, the sealing ring groove is located in the plug hole 13, and the sealing ring groove is used to install a sealing ring (not shown), which can abut against the inner circumferential wall of the plug hole 13, thereby preventing water vapor from entering the lock base 10 through the gap between the lock pin 20 and the plug hole 13. For details, please refer to Fig.11 In one embodiment, the lock base 10 is installed on the display module 200, and the locking cavity 12 in the lock base 10 is connected to the interior of the display module 200. At this time, it is necessary to install a sealing ring in the sealing ring groove to prevent water vapor from entering the locking cavity 12 and the interior of the display module 200 through the gap between the locking pin 20 and the jack 13, thereby avoiding affecting the performance of the display module 200.

[0087] Optionally, in one embodiment, please combine Figure 2 and Figure 5 The lock buckle 100 also includes a fixing frame 30, and the locking pin 20 is rotatably mounted on the fixing frame 30 to be connected to the second member to be connected through the fixing frame 30. Specifically, the fixing frame 30 can be fixed to the second member to be connected by screws. The positioning member 40 is a torsion spring and surrounds the outside of the locking pin 20. One end of the positioning member 40 is fixed relative to the locking pin 20, and the other end is fixed relative to the fixing frame 30. When the locking pin 20 rotates relative to the fixing frame 30, one end of the positioning member 40 will follow the movement of the locking pin 20, and the other end will be fixed relative to the fixing frame 30, and the positioning member 40 will be deformed; when the locking pin 20 is released, the positioning member 40 will restore the elastic deformation, thereby driving the locking pin 20 to rotate back to the angle state before the rotation.

[0088] Specifically, in this embodiment, after the lock pin 20 and the positioning member 40 are assembled on the fixing frame 30, the initial state of the lock pin 20 is at the locking angle, so when connecting the first to-be-connected member and the second to-be-connected member, the lock pin 20 can be directly inserted into the lock seat 10, without the need for the staff to first rotate the lock pin 20. After the lock pin 20 is rotated to the release angle and the lock seat 10 is pulled out, the positioning member 40 can drive the lock pin 20 to rotate back to the locking angle, preparing for the lock pin 20 to be reinserted into the lock seat 10, thereby avoiding the situation where the staff forgets to reset the lock pin 20 and the two to-be-connected members are not connected properly.

[0089] Of course, the positioning member 40 may be a compression spring in addition to a torsion spring. Specifically, when the positioning member is a compression spring, a pressing protrusion (not shown) may be convexly provided on the outer peripheral surface of the lock pin 20, one end of the compression spring is fixed relative to the fixing frame 30, and the other end is fixed relative to the pressing protrusion; when the lock pin 20 rotates, the compression spring is squeezed, so that the compression spring has a spring restoring force to drive the lock pin 20 to rotate, so that the lock pin 20 can automatically reset after the screwing is completed.

[0090] Further, please combine Figure 2 and Figure 5 The lock buckle 100 further includes a screw cap 50, which is disposed outside the positioning member 40 and is fixedly connected to the lock pin 20. One end of the positioning member 40 is fixed to the screw cap 50, and the other end is fixed to the fixing frame 30. Fig.10 The screw cap 50 is hollow inside. During assembly, the screw cap 50 is coaxially fixed to the lock pin 20 by screws, and the screw cap 50 covers the outside of the positioning member 40, which is convenient for screwing the lock pin 20 and protecting the positioning member 40. Figure 2 As shown, the fixing frame 30 is provided with a fixing hole 32. Fig.10 As shown, a fixing groove 54 is provided on the screw cap 50, and one end of the positioning member 40 is inserted and fixed in the fixing hole 32, and the other end is inserted and fixed in the fixing groove 54. This can ensure that the positioning member 40 is deformed when the screw cap 50 and the locking pin 20 rotate, and it is also convenient for the assembly of the positioning member 40.

[0091] Optionally, in one embodiment, please combine Figure 1 and Figure 2 The fixing frame 30 is provided with an angle limiting groove 31, which extends along the circumferential direction of the locking pin 20, and has a relative locking end 311 and a release end 312. It should be noted that the angle limiting groove 31 can be a closed arc groove, or one side can be through to the side of the fixing frame 30 (that is, the angle limiting groove 31 is a notched groove). The locking pin 20 or the screw cap 50 is provided with an angle limiting block 51, which is located in the angle limiting groove 31. When the angle limiting block 51 rotates with the locking pin 20 or the screw cap 50 and abuts against the locking end 311, the locking pin 20 is at the locking angle; when the angle limiting block 51 rotates with the locking pin 20 or the screw cap 50 and abuts against the release end 312, the locking pin 20 is at the release angle. It can be understood that this can help the staff to accurately judge whether the locking pin is rotated to the release angle, and avoid the situation where the rotation angle is incorrect and affects the locking pin 20 from being separated from the lock seat 10.

[0092] Furthermore, in one embodiment, when the angle limit block 51 abuts against the locking end 311, the positioning member 40 also has a tendency to drive the angle limit block 51 to rotate in a direction away from the release end 312, that is, the positioning member 40 forms a certain pre-tightening effect on the locking pin 20 at the locking angle, so that the locking pin 20 has a tendency to rotate in a direction away from the release angle. In this way, it can be ensured that the locking pin 20 is less likely to rotate toward the release angle due to vibration or bump, thereby ensuring the stability and safety of the connection of the lock buckle 100.

[0093] Further, such as Fig.10 As shown, the angle limit block 51 is arranged on the screw cap 50, and a shift block 52 is protruded on the outer circumferential surface of the screw cap 50 at a position corresponding to the angle limit block 51. The shift block 52 protrudes relative to other surfaces of the screw cap 50. When screwing the screw cap 50, the staff's hand can be against the shift block 52, so that the screw cap 50 can be screwed better and more smoothly. Moreover, because the shift block 52 is arranged corresponding to the angle limit block 51, the position of the angle limit block 51 can also be determined with the help of the shift block 52. In this way, the position of the angle limit block 51 can be known more clearly, and it is easier to find out whether the locking pin 20 is reset.

[0094] Alternatively, in other embodiments, a plurality of anti-slip protrusions 53 may be provided on the outer circumferential surface of the screw cap 50, and the plurality of anti-slip protrusions 53 may be arranged at intervals along the circumferential direction of the screw cap 50. This may also increase the friction between the hand and the screw cap 50 when screwing, prevent the hand from slipping, and make the disassembly of the lock 100 easier.

[0095] like Fig.11 As shown, the embodiment of the present application further provides a display device 1000, which includes a display module 200, a fixed box 300 and a lock 100. The display module 200 mainly includes a display screen 210 and a module bottom shell 220, the display screen 210 is mounted on the module bottom shell 220, and the module bottom shell 220 is connected to the fixed box 300 through the lock 100. The specific structure of the lock 100 refers to the above embodiment, the lock seat 10 is mounted on the display module 200, the lock pin 20 is mounted on the fixed box 300, and the lock pin 20 is inserted into the lock seat 10, so that the display module 200 is fixedly connected to the fixed box 300.

[0096] It can be understood that since the display device 1000 of the present application adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0097] In the above embodiments, the description of each embodiment has its own emphasis. For parts not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. In the description of this application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features.

[0098] The lock provided in the embodiment of the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A lock buckle (100), characterized in that: include: A lock seat (10), the lock seat (10) is used to connect with the first to-be-connected member, and a locking block (11) is movably installed in the lock seat (10), and the locking block (11) has a locking position and a release position; A locking pin (20), the locking pin (20) being used to connect to a second member to be connected, and the locking pin (20) having a plug connector (21) plugged into the lock seat (10), the plug connector (21) being provided with a limiting portion (211) and an avoidance portion (212); the locking pin (20) being further configured to be rotatable between a locking angle and a release angle; and, a positioning member (40), the positioning member (40) being connected to the locking pin (20), and the positioning member (40) being used to keep the locking pin (20) at the locking angle; When the locking block (11) is at the locking position and the locking pin (20) is at the locking angle, the limiting portion (211) corresponds to the locking block (11), and the locking block (11) prevents the limiting portion (211) from moving in a direction away from the lock seat (10); When the locking block (11) is in the locking position and the locking pin (20) is at the release angle, the avoidance portion (212) corresponds to the locking block (11), and the locking pin (20) avoids the locking block (11) through the avoidance portion (212) so as to be able to disengage from the lock seat (10); When the locking block (11) is in the release position, the locking pin (20) can be separated from the lock seat (10).

2. The lock buckle according to claim 1, characterized in that: The locking pin (20) further comprises a mating shaft section (22), and the plug connector (21) is connected to one end of the mating shaft section (22) in the axial direction; The surface of the limiting portion (211) is a convex arc surface, the surface of the avoidance portion (212) is a avoidance plane, the convex arc surface and the avoidance plane are connected along the circumferential direction of the plug connector (21), and the surface of the mating shaft section (22) is at least concave relative to the convex arc surface.

3. The lock buckle according to claim 2, characterized in that: The lock seat (10) is provided with a locking cavity (12) and a socket (13) communicating with the locking cavity (12), wherein the socket (13) is used for inserting the plug connector (21) into the locking cavity (12); The locking block (11) is movably installed in the locking cavity (12), and a plurality of the locking blocks (11) are provided, and the plurality of locking blocks (11) are evenly arranged along the circumferential direction of the insertion hole (13); The limiting portion (211) and the avoiding portion (212) are respectively adapted to the plurality of locking blocks (11) in terms of quantity, and in the circumferential direction of the plug connector (21), one avoiding portion (212) is connected between any two adjacent limiting portions (211).

4. The lock buckle according to claim 3, characterized in that: The angle that the locking pin (20) needs to rotate when switching between the locking angle and the release angle is less than 360° and greater than or equal to 90°.

5. The lock buckle according to claim 3, characterized in that: The locking block (11) is a magnetic ball block, and a reset member (14) is further provided in the locking cavity (12). The reset member (14) is used to drive the locking block (11) to move toward the locking position. The locking block (11) can overcome the elastic force of the reset member (14) under the action of an external magnetic force and move toward the release position; The matching shaft section (22) is concavely provided with an annular clamping groove (221), and the annular clamping groove (221) is arc-shaped and concave, so as to be adapted to be clamped with the locking block (11); The avoidance portion (212) comprises a first avoidance area (2121) and a second avoidance area (2122), wherein the first avoidance area (2121) is connected between two adjacent limiting portions (211) along the circumferential direction of the plug connector (21), and the second avoidance area (2122) extends from the first avoidance area (2121) into the annular groove (221), and the second avoidance area (2122) is flush with the bottom of the annular groove (221).

6. The lock buckle according to claim 5, characterized in that: A guide portion (213) is further connected to a side of each of the limiting portions (211) away from the annular slot (221), and the guide portion (213) gradually tilts toward the central axis (23) of the locking pin (20) while extending in a direction away from the limiting portion (211); The avoidance portion (212) further includes a third avoidance area (2123), wherein the third avoidance area (2123) is connected to a side of the first avoidance area (2121) away from the second avoidance area (2122), and the third avoidance area (2123) is connected between two adjacent guide portions (213), and any position on the guide portion (213) is located on the same side of the plane where the third avoidance area (2123) is located.

7. The lock buckle according to claim 5, characterized in that: The locking cavity (12) comprises a limiting cavity (121) and an avoiding cavity (122) that are communicated with each other, and the limiting cavity (121) is communicated with the insertion hole (13); In the axial direction of the insertion hole (13), the avoidance cavity (122) is located on a side of the limiting cavity (121) away from the insertion hole (13), and in the radial direction of the insertion hole (13), the avoidance cavity (122) is located on a side of the limiting cavity (121) away from the insertion hole (13); When the locking block (11) is located in the limiting cavity (121), the locking block (11) is in the locking position; When the locking block (11) is acted upon by an external magnetic force and presses the reset member (14), the locking block (11) moves into the avoidance cavity (122) and switches to the release position; And / or, a pressure plate (15) is further provided in the locking cavity (12), the reset member (14) squeezes the locking block (11) through the pressure plate (15), and a limiting groove (151) is further provided on the pressure plate (15) at a position corresponding to the locking block (11), and the locking block (11) is partially immersed in the limiting groove (151).

8. The lock buckle according to claim 3, characterized in that: The locking pin (20) further comprises a sealing shaft section (24), the sealing shaft section (24) being connected to a side of the mating shaft section (22) away from the plug connector (21), and a sealing ring groove (241) being concavely provided on the outer periphery of the sealing shaft section (24); When the lock pin (20) is inserted into the lock seat (10), the sealing ring groove (241) is located in the insertion hole (13), and the sealing ring groove (241) is used to install a sealing ring.

9. The lock buckle according to any one of claims 1 to 8, characterized in that: The lock buckle further comprises a fixing frame (30), and the locking pin (20) is rotatably mounted on the fixing frame (30) so as to be connected to the second member to be connected via the fixing frame (30); The positioning member (40) is a torsion spring and surrounds the lock pin (20). One end of the positioning member (40) is fixed relative to the lock pin (20), and the other end is fixed relative to the fixing frame (30).

10. The lock buckle according to claim 9, characterized in that: The lock buckle further comprises a rotary cap (50), the rotary cap (50) is arranged outside the positioning member (40), and the rotary cap (50) is fixedly connected to the lock pin (20); One end of the positioning member (40) is fixed on the screw cap (50), and the other end is fixed on the fixing frame (30).

11. The lock buckle according to claim 10, wherein: The fixing frame (30) is provided with an angle limiting groove (31), the angle limiting groove (31) extends along the circumferential direction of the locking pin (20), and the angle limiting groove (31) has a locking end (311) and a releasing end (312) opposite to each other; the locking pin (20) or the screw cap (50) is provided with an angle limiting block (51), and the angle limiting block (51) is located in the angle limiting groove (31); When the angle limit block (51) rotates with the locking pin (20) or the rotary cap (50) and abuts against the locking end (311), the locking pin (20) is at the locking angle; When the angle limiting block (51) rotates with the locking pin (20) or the rotary cap (50) and abuts against the release end (312), the locking pin (20) is at the release angle.

12. The lock buckle according to claim 11, wherein: When the angle limit block (51) abuts against the locking end (311), the positioning member (40) also has a tendency to drive the angle limit block (51) to rotate in a direction away from the release end (312).

13. The lock buckle according to claim 11, wherein: The angle limit block (51) is provided on the screw cap (50), and a shift block (52) is protruded on the outer peripheral surface of the screw cap (50) at a position corresponding to the angle limit block (51), and the shift block (52) protrudes relative to other surfaces of the screw cap (50); And / or, a plurality of anti-slip protrusions (53) are provided on the outer peripheral surface of the screw cap (50), and the plurality of anti-slip protrusions (53) are arranged at intervals along the circumferential direction of the screw cap (50).

14. A display device (1000), characterized in that: The invention comprises a display module (200), a fixed housing (300) and a lock according to any one of claims 1 to 13, wherein the lock seat (10) is mounted on the display module (200), the lock pin (20) is mounted on the fixed housing (300), and the lock pin (20) is inserted into the lock seat (10) so that the display module (200) is fixed on the fixed housing (300).

Images