CN221171423U - Coupling assembling, locking mechanical system and LED display device - Google Patents

Abstract

The utility model provides a connecting component, a locking mechanism and an LED display device, wherein the connecting component comprises: the base comprises a lock sleeve, wherein the side wall of the lock sleeve is provided with a containing hole, and the containing hole penetrates through the side wall of the lock sleeve; the driving handle comprises a handle part and a driving sleeve, the inner surface of the driving sleeve is provided with a containing concave part, and the driving sleeve is rotatably sleeved on the periphery of the lock sleeve and is provided with a locking position for misplacement of the containing concave part and the containing hole and an unlocking position for corresponding to the containing concave part and the containing hole; the locking piece is movably arranged between the lock sleeve and the driving sleeve along the radial direction of the lock sleeve, the locking piece is provided with an unlocking state and a locking state, wherein the unlocking state and the locking state are simultaneously positioned in the accommodating hole and the accommodating concave part, the locking state is separated from the accommodating concave part, and the inner surface of the driving sleeve can be in pushing fit with the locking piece so that the locking piece is switched from the unlocking state to the locking state. The technical scheme of the utility model can effectively solve the problem that the locking mechanism in the related technology needs to be matched with an external operation tool for use, so that the operation is complex.

Description

Coupling assembling, locking mechanical system and LED display device

Technical Field

The utility model relates to the technical field of LED display, in particular to a connecting assembly, a locking mechanism and an LED display device.

Background

In the related art, an LED display device is generally formed by splicing a plurality of LED boxes together, and the adjacent LED boxes need to be locked and connected by using a locking mechanism.

Specifically, the locking mechanism generally comprises a lock cylinder and a lock seat, wherein a strip-shaped locking block is arranged on the lock cylinder, a stepped hole is formed in the lock seat, the lock cylinder can penetrate into the stepped hole of the lock seat, and a worker rotates the lock cylinder to enable the locking block to be matched with a step surface stop of the stepped hole, so that locking can be achieved; when the LED box body needs to be disassembled, a worker rotates the lock cylinder to enable the lock block not to be matched with the step surface stop of the step hole. In order to realize the rotation of the lock cylinder, an operation hole is generally formed in the end portion of the lock cylinder, and when the lock cylinder and the lock seat are required to be locked or unlocked, a worker generally uses an operation tool to extend into the operation hole to rotate the lock cylinder.

When the locking mechanism is used, the locking mechanism needs to be matched with an external operation tool, so that the external operation tool needs to be stored, and the operation is complex.

Disclosure of utility model

The utility model mainly aims to provide a connecting component, a locking mechanism and an LED display device, so as to solve the problem that the locking mechanism in the related art needs to be matched with an external operation tool for use, so that the operation is complex.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a connection assembly comprising: the base comprises a lock sleeve, wherein the side wall of the lock sleeve is provided with a containing hole, and the containing hole penetrates through the side wall of the lock sleeve; the driving handle comprises a handle part and a driving sleeve, the inner surface of the driving sleeve is provided with a containing concave part, and the driving sleeve is rotatably sleeved on the periphery of the lock sleeve and is provided with a locking position for misplacement of the containing concave part and the containing hole and an unlocking position for corresponding to the containing concave part and the containing hole; the locking piece is movably arranged between the lock sleeve and the driving sleeve along the radial direction of the lock sleeve, the locking piece is provided with an unlocking state and a locking state, the unlocking state is positioned in the accommodating hole and the accommodating concave part at the same time, the locking state is separated from the accommodating concave part, and the inner surface of the driving sleeve can be in pushing fit with the locking piece so as to enable the locking piece to be switched from the unlocking state to the locking state; wherein the locking member is switchable between a locked state and an unlocked state when the drive sleeve is in the unlocked position, and is maintained in the locked state when the drive sleeve is in the locked position.

Further, the locking member is a locking ball.

Further, the inner surface of the accommodation recess is a part of a spherical surface; and/or one end of the containing hole, which is close to the inner surface of the lock sleeve, is provided with a reducing section, and the aperture of the reducing section is gradually reduced in the direction from the outer surface to the inner surface of the lock sleeve so as to limit the locking piece from being separated from the containing hole inwards.

Further, be provided with the installation concave part with the inside intercommunication of driving sleeve on the actuating lever, coupling assembling still is provided with first spacing portion and second spacing portion including setting up the locating part in the installation concave part on the surface of lock sleeve, first spacing portion and second spacing portion set up along the circumference direction interval of lock sleeve and homoenergetic and spacing cooperation with the locating part, when the driving sleeve is located the locked position, spacing piece and the spacing cooperation of first spacing portion in order to make the driving sleeve keep in the locked position, when the driving sleeve is located the unlocked position, spacing piece and the spacing cooperation of second spacing portion in order to make the driving sleeve keep in the unlocked position.

Further, the locating part is movably set up in the installation concave part along the radial direction of lock sleeve and has the spacing state that is close to the lock sleeve and keep away from the movable state of lock sleeve, and when the locating part was in spacing state, the locating part can with first spacing portion or spacing cooperation of second spacing portion, when the locating part was in movable state, the locating part all separated in order to make the drive sleeve rotate for the lock sleeve with first spacing portion and second spacing portion, and coupling assembling still includes: the control button is movably arranged on the driving handle, and comprises a driving part and an operating part, the operating part extends outwards from the driving handle, and the driving part is positioned in the mounting concave part and is in driving connection with the limiting part so as to drive the limiting part to move from a limiting state to a movable state; and the reset piece is arranged in the mounting concave part and can apply a propping force to the limiting piece so as to keep the limiting piece in a limiting state.

Further, the driving part comprises a driving plate and a hinge block arranged at the first end of the driving plate, the operating part is connected to the second end of the driving plate, the limiting piece is connected to the driving plate, the inner surface of the mounting concave part is provided with a hinge concave part, and the hinge block is rotatably arranged in the hinge concave part so that the control button can swing relative to the driving handle and drive the limiting piece to switch between a limiting state and a movable state.

Further, the limiting piece comprises a limiting block and a limiting rod, the reset piece is a spring sleeved on the limiting rod, and two ends of the spring respectively abut against the inner surfaces of the limiting block and the mounting concave part so as to apply an abutting force towards the lock sleeve to the limiting block.

Further, the limiting piece comprises a limiting block, a first matching tooth is arranged at one end of the limiting block, facing the lock sleeve, of the limiting block, a second matching tooth capable of being meshed with the first matching tooth is arranged on the first limiting part, and a third matching tooth capable of being meshed with the first matching tooth is arranged on the second limiting part; and/or the driving handle further comprises a cover plate, wherein the cover plate is arranged at the mounting concave part and can seal the mounting concave part.

According to another aspect of the present utility model, there is provided a locking mechanism comprising a lock cylinder structure and a connection assembly, wherein the connection assembly is the connection assembly described above; the lock cylinder structure is provided with a locking rod which can extend into the lock sleeve, a locking concave part is arranged on the outer surface of the locking rod, when the driving sleeve is positioned at the unlocking position, the locking rod can move along the axial direction relative to the lock sleeve, and when the driving sleeve is positioned at the locking position, the locking piece extends into the locking concave part and limits the locking rod to move along the axial direction relative to the lock sleeve.

According to another aspect of the present utility model, there is provided an LED display device including a locking mechanism, wherein the locking mechanism is the locking mechanism described above.

By applying the technical scheme of the utility model, the connecting component comprises a base, a driving handle and a locking piece, wherein the base comprises a lock sleeve, and a structure matched with the connecting component can extend into the lock sleeve; the driving sleeve of the driving handle is sleeved on the periphery of the lock sleeve and can rotate relative to the lock sleeve; the locking piece is positioned between the lock sleeve and the driving sleeve, in particular in a containing hole arranged on the lock sleeve, the inner surface of the driving sleeve is provided with a containing concave part, when the driving sleeve is positioned at the unlocking position, the containing concave part is correspondingly arranged with the containing hole, at the moment, the locking piece can be positioned in the containing hole and the containing concave part at the same time, the locking piece does not protrude out of the inner surface of the lock sleeve or protrudes inwards for a small distance out of the inner surface of the lock sleeve, and the locking piece does not block a structure matched with the connecting component from extending into or extending out of the lock sleeve; when the driving sleeve is positioned at the locking position, the accommodating concave part and the accommodating hole are arranged in a staggered mode, and the locking piece is pushed inwards by the inner surface of the driving sleeve and is separated from the accommodating concave part, at the moment, the locking piece is only positioned in the accommodating hole and is not positioned in the accommodating concave part any more, the locking piece protrudes inwards for a larger distance from the inner surface of the locking sleeve, and the locking piece can stop the structure matched with the connecting assembly to limit the locking piece from extending out of the locking sleeve so as to realize locking connection with the structure matched with the connecting assembly. The connecting component does not need to be matched with other external operation tools for use, a worker only needs to rotate the handle part of the driving handle to drive the driving sleeve to rotate, and the connecting component has the advantage of simplicity in operation. Therefore, the technical scheme of the utility model can effectively solve the problem that the locking mechanism in the related art needs to be matched with an external operation tool for use, so that the operation is complex.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic perspective view of an embodiment of a connection assembly according to the present utility model;

FIG. 2 illustrates an exploded view of the connection assembly of FIG. 1;

FIG. 3 illustrates an exploded view of the connection assembly of FIG. 1 mated with a connection plate;

Fig. 4 is a schematic perspective view showing a first LED housing of an embodiment of an LED display device according to the present utility model;

Fig. 5 shows an enlarged view at a of the first LED housing of fig. 4;

fig. 6 is an enlarged view showing a part of the structure of an embodiment of an LED display device according to the present utility model;

FIG. 7 shows a schematic cross-sectional view of the cover plate position of the LED display device of FIG. 6 with the locking member in an unlocked state and the drive sleeve in an unlocked position;

Fig. 8 shows an enlarged view at B of the LED display device of fig. 7;

FIG. 9 shows a schematic cross-sectional view of the control knob position of the LED display device of FIG. 6 with the locking member in an unlocked state and the drive sleeve in an unlocked position;

fig. 10 shows an enlarged view at C of the LED display device of fig. 9;

FIG. 11 shows a schematic cross-sectional view of the control knob position of the LED display device of FIG. 6 with the locking member in an unlocked state and the drive sleeve in an unlocked position;

FIG. 12 shows a schematic cross-sectional view of the cover plate position of the LED display device of FIG. 6 with the locking member in a locked state and the drive sleeve in a locked position;

Fig. 13 shows a schematic cross-sectional view of the position of the stop of the LED display device of fig. 6 with the locking member in a locked state and the drive sleeve in a locked position.

Wherein the above figures include the following reference numerals:

1. a first LED box; 2. a second LED box;

10. A base; 11. a lock sleeve; 12. a receiving hole; 121. a reducing section; 13. a first limit part; 131. a second mating tooth; 14. a second limit part; 141. a third mating tooth; 15. a bottom plate; 151. a first lock hole;

20. A drive handle; 21. a handle portion; 22. a drive sleeve; 23. a receiving recess; 24. a mounting recess; 25. a hinge recess; 26. a cover plate;

30. a locking member;

40. a limiting piece; 41. a limiting block; 411. a first mating tooth; 42. a limit rod;

50. A control knob; 51. a driving section; 511. a driving plate; 512. a hinge block; 52. an operation unit;

60. a reset member;

70. a lock core structure; 71. a locking lever; 72. a locking recess;

80. a connecting plate; 81. a concave portion; 82. and a second lock hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, 2, 7, 8 and 12, an embodiment of the connection assembly of the present application includes: base 10, drive handle 20 and locking member 30. Wherein, the base 10 comprises a lock sleeve 11, the side wall of the lock sleeve 11 is provided with a containing hole 12, and the containing hole 12 penetrates through the side wall of the lock sleeve 11; the drive handle 20 includes a handle portion 21 and a drive sleeve 22, the drive sleeve 22 being provided with a receiving recess 23 on an inner surface thereof, the drive sleeve 22 being rotatably sleeved on an outer periphery of the lock sleeve 11 and having a locking position for dislocating the receiving recess 23 with the receiving hole 12 and an unlocking position for corresponding the receiving recess 23 with the receiving hole 12; the locking member 30 is movably disposed between the lock sleeve 11 and the driving sleeve 22 in the radial direction of the lock sleeve 11, the locking member 30 has an unlocked state located in both the accommodation hole 12 and the accommodation recess 23 and a locked state disengaged from the accommodation recess 23, and an inner surface of the driving sleeve 22 can be in pushing engagement with the locking member 30 to switch the locking member 30 from the unlocked state to the locked state; wherein the locking member 30 is switchable between a locked state and an unlocked state when the drive sleeve 22 is in the unlocked position, and wherein the locking member 30 remains in the locked state when the drive sleeve 22 is in the locked position.

By applying the technical scheme of the embodiment, the connecting assembly comprises a base 10, a driving handle 20 and a locking piece 30, wherein the base 10 comprises a lock sleeve 11, and a structure matched with the connecting assembly (particularly a lock cylinder structure 70 mentioned later) can extend into the lock sleeve 11; the driving sleeve 22 of the driving handle 20 is sleeved on the periphery of the lock sleeve 11 and can rotate relative to the lock sleeve 11; the locking piece 30 is located between the lock sleeve 11 and the driving sleeve 22, specifically, is arranged in the accommodating hole 12 on the lock sleeve 11, the accommodating concave part 23 is arranged on the inner surface of the driving sleeve 22, when the driving sleeve 22 is located at the unlocking position, the accommodating concave part 23 is arranged corresponding to the accommodating hole 12, at this time, the locking piece 30 can be located in the accommodating hole 12 and the accommodating concave part 23 at the same time, the locking piece 30 does not protrude from the inner surface of the lock sleeve 11 or protrudes inwards from the inner surface of the lock sleeve 11 only by a small distance, and the locking piece 30 does not block the structure matched with the connecting component from extending into or extending out of the lock sleeve 11; when the driving sleeve 22 is located at the locking position, the accommodating concave part 23 and the accommodating hole 12 are arranged in a staggered manner, the locking piece 30 is pushed inwards by the inner surface of the driving sleeve 22 and is separated from the accommodating concave part 23, at this time, the locking piece 30 is only located in the accommodating hole 12 and is not located in the accommodating concave part 23 any more, the locking piece 30 protrudes inwards from the inner surface of the lock sleeve 11 for a larger distance, and the locking piece 30 can stop the structure matched with the connecting component to limit the locking piece from extending out of the lock sleeve 11 so as to realize locking connection with the structure matched with the connecting component. The connecting assembly of the embodiment does not need to be matched with other external operation tools, a worker only needs to rotate the handle part 21 of the driving handle 20 to drive the driving sleeve 22 to rotate, and the connecting assembly has the advantage of simplicity in operation. Therefore, the technical scheme of the embodiment can effectively solve the problem that the locking mechanism in the related art needs to be matched with an external operation tool for use, so that the operation is complex.

As shown in fig. 2, 7, 8 and 12, in the present embodiment, the locking member 30 is a locking ball. The engagement between the locking balls and the inner surfaces of the receiving hole 12, the receiving recess 23 and the driving sleeve 22 is a rolling engagement, facilitating the state switching of the locking balls.

Specifically, in the present embodiment, the number of locking balls is three, and correspondingly, the number of the accommodation holes 12 and the accommodation recesses 23 is three.

As shown in fig. 2, 7, 8 and 12, the inner surface of the accommodation recess 23 is a part of a spherical surface. The shape of the inner surface of the receiving recess 23 is adapted to the shape of the outer surface of the locking ball, which is easier to push the locking ball inwardly out of the receiving recess 23.

As shown in fig. 7 and 8, the end of the receiving hole 12 near the inner surface of the lock sleeve 11 is provided with a variable diameter section 121, and the diameter of the variable diameter section 121 is gradually reduced in the direction from the outer surface to the inner surface of the lock sleeve 11 to restrict the locking piece 30 from being inwardly separated from the receiving hole 12.

As shown in fig. 2, 9, 10 and 13, the driving handle 20 is provided with a mounting recess 24 communicated with the interior of the driving sleeve 22, the connecting assembly further comprises a limiting piece 40 arranged in the mounting recess 24, the outer surface of the lock sleeve 11 is provided with a first limiting portion 13 and a second limiting portion 14, the first limiting portion 13 and the second limiting portion 14 are arranged at intervals along the circumferential direction of the lock sleeve 11 and can be in limiting fit with the limiting piece 40, when the driving sleeve 22 is located at the locking position, the limiting piece 40 is in limiting fit with the first limiting portion 13 so as to enable the driving sleeve 22 to be kept at the locking position, and when the driving sleeve 22 is located at the unlocking position, the limiting piece 40 is in limiting fit with the second limiting portion 14 so as to enable the driving sleeve 22 to be kept at the unlocking position. The limiting piece 40 enables the driving sleeve 22 to be stably kept at the locking position or the unlocking position, and prevents the driving handle 20 from being locked unstably after being touched by mistake.

As shown in fig. 2, 9, 10 and 13, the stopper 40 is movably disposed in the mounting recess 24 in the radial direction of the lock sleeve 11 and has a stopper state close to the lock sleeve 11 and an active state away from the lock sleeve 11, when the stopper 40 is in the stopper state, the stopper 40 can be in stopper engagement with the first stopper portion 13 or the second stopper portion 14, when the stopper 40 is in the active state, the stopper 40 is separated from both the first stopper portion 13 and the second stopper portion 14 to enable the drive sleeve 22 to rotate relative to the lock sleeve 11, and the connection assembly further includes: a control knob 50 and a reset element 60. The control button 50 is movably disposed on the driving handle 20, the control button 50 includes a driving portion 51 and an operating portion 52, the operating portion 52 extends out of the driving handle 20, and the driving portion 51 is disposed in the mounting recess 24 and is in driving connection with the limiting member 40 to drive the limiting member 40 to move from a limiting state to an active state; the return member 60 is disposed within the mounting recess 24 and is capable of applying a biasing force to the check member 40 to maintain the check member 40 in the check condition. When the driving handle 20 needs to be rotated to drive the locking member 30 to switch states, a worker can operate the control button 50 to enable the limiting member 40 to overcome the pushing force of the resetting member 60 and switch from the limiting state to the active state, and the driving handle 20 can rotate relative to the lock sleeve 11; when the driving handle 20 is rotated in place, the operator can not operate the control knob 50 any more, and the limiting member 40 is reset from the active state to the limiting state by the reset member 60, so that the driving handle 20 is stably maintained in this position. The operation portion 52 of the control knob 50 extends outward from the driving handle 20, so that a worker can operate the control knob 50.

Specifically, in the present embodiment, the operation portion 52 is a handle structure.

As shown in fig. 2 and 11, the driving part 51 includes a driving plate 511 and a hinge block 512 provided at a first end of the driving plate 511, the operating part 52 is connected to a second end of the driving plate 511, the stopper 40 is connected to the driving plate 511, the hinge recess 25 is provided on the inner surface of the mounting recess 24, and the hinge block 512 is rotatably provided in the hinge recess 25 so that the control knob 50 can swing with respect to the driving handle 20 and drive the stopper 40 to switch between a limit state and an active state. The driving part 51 is swingably arranged on the driving handle 20 through the running fit between the hinge block 512 and the hinge concave portion 25, the limiting piece 40 is connected to the driving plate 511, and the driving plate 511 swings to drive the limiting piece 40 to move along with the driving plate, so that the limiting piece 40 can be switched between a limiting state and an active state.

As shown in fig. 2, 9, 10 and 13, the limiting member 40 includes a limiting block 41 and a limiting rod 42, and the reset member 60 is a spring sleeved on the limiting rod 42, and two ends of the spring respectively abut against the limiting block 41 and the inner surface of the mounting recess 24 so as to apply an abutting force to the limiting block 41 toward the lock sleeve 11. The use of a spring as the return member 60 has the advantage of a simple structure.

As shown in fig. 2, 9, 10 and 13, the limiting member 40 includes a limiting member 41, a first engaging tooth 411 is disposed at an end of the limiting member 41 facing the lock sleeve 11, a second engaging tooth 131 capable of engaging with the first engaging tooth 411 is disposed on the first limiting member 13, and a third engaging tooth 141 capable of engaging with the first engaging tooth 411 is disposed on the second limiting member 14. Specifically, the first, second and third mating teeth 411, 131 and 141 each include a plurality of teeth, so that the stability of the stopper 40 when mated with the first and second stopper portions 13 and 14 can be ensured.

As shown in fig. 2, 7, 8 and 12, the driving handle 20 further includes a cover plate 26, and the cover plate 26 is disposed at the mounting recess 24 and is capable of blocking the mounting recess 24. The cover plate 26 can close the mounting recess 24, and prevent the stopper 40, the driving plate 511, the reset member 60, and the like provided in the driving handle 20 from being exposed, thereby protecting these components.

As shown in fig. 2, in this embodiment, the base 10 further includes a bottom plate 15 disposed at an end of the lock sleeve 11, and a first locking hole 151 corresponding to an inner hole of the lock sleeve 11 is disposed on the bottom plate 15.

Specifically, as shown in fig. 3, the connection assembly of the present embodiment further includes a connection plate 80, a plurality of concave portions 81 are provided on one connection plate 80, and a base 10, and a driving handle 20, a locking member 30, a limiting member 40, a control knob 50, and a reset member 60 corresponding to the base 10 are provided at each concave portion 81. The recess 81 is provided with a second lock hole 82 corresponding to the first lock hole 151, and a structure (specifically, a lock cylinder structure 70 mentioned later) that is in locking engagement with the connection component can penetrate through the second lock hole 82 and the first lock hole 151 and extend into the lock sleeve 11.

As shown in fig. 4, 5, 7, 8, 11 and 12, the present application further provides a locking mechanism, and an embodiment of the locking mechanism of the present application includes a lock cylinder structure 70 and a connection assembly, where the connection assembly is the connection assembly described above; the lock cylinder structure 70 has a lock lever 71 that can be inserted into the lock sleeve 11, a lock recess 72 is provided on an outer surface of the lock lever 71, the lock lever 71 can be moved in the axial direction with respect to the lock sleeve 11 when the drive sleeve 22 is in the unlock position, and the lock member 30 is inserted into the lock recess 72 and restricts the movement of the lock lever 71 in the axial direction with respect to the lock sleeve 11 when the drive sleeve 22 is in the lock position. The connecting component can effectively solve the problem that the locking mechanism in the related art needs to be matched with an external operation tool for use, so that the operation is complex, and the locking mechanism with the connecting component also has the advantages.

In this embodiment, the locking lever 71 is provided with the locking recess 72, and both side surfaces of the locking recess 72 can be in stop fit with the locking member 30, so that the locking lever 71 can be limited to move in the axial direction relative to the lock sleeve 11, and the locking reliability between the connection assembly and the lock cylinder structure 70 is ensured.

Of course, in an embodiment not shown in the figures, the lock cylinder structure may also be a structure comprising a locking lever and a locking block arranged at an end of the locking lever, the locking member being capable of cooperating with an end stop of the locking block near the locking lever when the drive sleeve is in the locked position, to limit movement of the lock cylinder structure in an axial direction relative to the lock sleeve.

The operation of the coupling assembly and the movement of its internal structure will now be described with reference to fig. 7 to 13, wherein fig. 7 to 11 show a state diagram of the locking member 30 in the unlocked state and the drive sleeve 22 in the unlocked position; fig. 12 to 13 show a state diagram of the locking member 30 in the locked state and the drive sleeve 22 in the locked position.

As shown in fig. 7 and 8, the driving handle 20 extends in the horizontal direction, the locking piece 30 is located in both the accommodation hole 12 and the accommodation recess 23, the locking piece 30 does not protrude inward from the inner surface of the lock case 11, and the locking lever 71 can smoothly move in the lock case 11.

As shown in fig. 9 and 10, the stopper 40 is in a stopper engagement with the second stopper 14 so that the driving handle 20 can be maintained in a position extending in the horizontal direction without being erroneously triggered.

Taking the driving handle 20 located at the upper right corner in fig. 11 as an example, when the state of the driving handle 20 needs to be adjusted, the control button 50 is pressed down in the clockwise direction b first, the control button 50 swings to drive the limiting piece 40 to move from the limiting state to the active state so that the driving handle 20 can rotate relative to the lock sleeve 11, then the driving handle 20 is rotated in the anticlockwise direction a to rotate to the state extending in the vertical direction shown in fig. 12, during the rotation of the driving handle 20, the locking piece 30 is pushed against the locking piece 30 to move inwards to the locking state protruding inwards from the inner surface of the lock sleeve 11 and extending into the locking concave portion 72 of the lock cylinder structure 70, then the control button 50 is not pressed any more, so that the limiting piece 40 is switched from the active state to the limiting state under the action of the reset piece 60 and is in limiting cooperation with the first limiting part 13, and the driving handle 20 is stably kept in the state extending in the vertical direction, namely, the connecting component and the lock cylinder structure 70 are stably kept in the locking state.

The application also provides an LED display device which comprises a locking mechanism, wherein the locking mechanism is the locking mechanism. The locking mechanism can effectively solve the problem that the locking mechanism in the related art needs to be matched with an external operation tool for use, so that the operation is complex, and the LED display device with the locking mechanism also has the advantages.

As shown in fig. 6 to 13, in the present embodiment, the connection plate 80 of the connection assembly is provided at the intersection of a plurality of LED cases that need to be connected together, for example, at the intersection of four LED cases arranged in a 2×2 form, and fig. 6 to 13 show only two of the four LED cases (i.e., the first LED case 1 and the second LED case 2). The corner of each LED box body is provided with a lock core structure 70, and the lock core structure 70 can penetrate through the second lock hole 82 and the first lock hole 151 and extend into the corresponding lock sleeve 11 to achieve locking fit, so that a plurality of LED box bodies are fixedly connected together.

Of course, in the embodiment not shown in the drawings, the connecting plate is not required, and the lock core structure and the connecting assembly not containing the connecting plate are directly arranged on the adjacent edges of the two adjacent LED boxes respectively, so as to realize the fixed connection and the disassembly of the two adjacent LED boxes.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A connection assembly, comprising:

The base (10) comprises a lock sleeve (11), wherein a containing hole (12) is formed in the side wall of the lock sleeve (11), and the containing hole (12) penetrates through the side wall of the lock sleeve (11);

A drive handle (20) comprising a handle portion (21) and a drive sleeve (22), wherein a containing recess (23) is arranged on the inner surface of the drive sleeve (22), and the drive sleeve (22) is rotatably sleeved on the periphery of the lock sleeve (11) and has a locking position for misplacement of the containing recess (23) and the containing hole (12) and an unlocking position for corresponding the containing recess (23) and the containing hole (12);

A locking member (30) movably disposed between the lock sleeve (11) and the drive sleeve (22) in a radial direction of the lock sleeve (11), the locking member (30) having an unlocked state located both in the accommodation hole (12) and in the accommodation recess (23) and a locked state disengaged from the accommodation recess (23), an inner surface of the drive sleeve (22) being capable of being in ejector-fit with the locking member (30) to switch the locking member (30) from the unlocked state to the locked state;

Wherein the locking member (30) is switchable between the locked and unlocked states when the drive sleeve (22) is in the unlocked position, the locking member (30) being maintained in the locked state when the drive sleeve (22) is in the locked position.

2. The connection assembly according to claim 1, wherein the locking member (30) is a locking ball.

3. The connection assembly of claim 2, wherein,

The inner surface of the accommodating recess (23) is a part of a sphere; and/or the number of the groups of groups,

One end of the accommodating hole (12) close to the inner surface of the lock sleeve (11) is provided with a reducing section (121), and the aperture of the reducing section (121) is gradually reduced in the direction from the outer surface to the inner surface of the lock sleeve (11) so as to limit the locking piece (30) to be separated from the accommodating hole (12) inwards.

4. A connection assembly according to any one of claims 1 to 3, wherein the drive handle (20) is provided with a mounting recess (24) communicating with the interior of the drive sleeve (22), the connection assembly further comprising a stop (40) provided in the mounting recess (24), the outer surface of the lock sleeve (11) being provided with a first stop (13) and a second stop (14), the first stop (13) and the second stop (14) being spaced apart in the circumferential direction of the lock sleeve (11) and each being capable of a stop fit with the stop (40), the stop (40) being in stop fit with the first stop (13) to retain the drive sleeve (22) in the locked position when the drive sleeve (22) is in the unlocked position, the stop (40) being in stop fit with the second stop (14) to retain the drive sleeve (22) in the unlocked position.

5. The connection assembly according to claim 4, wherein the stopper (40) is movably arranged in the mounting recess (24) in a radial direction of the lock sleeve (11) and has a stopper state close to the lock sleeve (11) and an active state away from the lock sleeve (11), the stopper (40) being capable of being in stopper engagement with the first stopper (13) or the second stopper (14) when the stopper (40) is in the stopper state, the stopper (40) being separated from both the first stopper (13) and the second stopper (14) to enable the drive sleeve (22) to rotate relative to the lock sleeve (11) when the stopper (40) is in the active state, the connection assembly further comprising:

A control button (50) movably arranged on the driving handle (20), wherein the control button (50) comprises a driving part (51) and an operating part (52), the operating part (52) extends outwards from the driving handle (20), and the driving part (51) is positioned in the mounting concave part (24) and is in driving connection with the limiting piece (40) so as to drive the limiting piece (40) to move from the limiting state to the movable state;

And a return member (60) provided in the mounting recess (24) and capable of applying a pressing force to the stopper (40) so that the stopper (40) is maintained in the stopper state.

6. The connection assembly according to claim 5, wherein the driving part (51) comprises a driving plate (511) and a hinge block (512) arranged at a first end of the driving plate (511), the operating part (52) is connected to a second end of the driving plate (511), the limiting member (40) is connected to the driving plate (511), a hinge recess (25) is arranged on an inner surface of the mounting recess (24), and the hinge block (512) is rotatably arranged in the hinge recess (25) so that the control knob (50) can swing relative to the driving handle (20) and drive the limiting member (40) to switch between the limiting state and the active state.

7. The connecting assembly according to claim 5, wherein the limiting member (40) comprises a limiting block (41) and a limiting rod (42), the reset member (60) is a spring sleeved on the limiting rod (42), and two ends of the spring respectively abut against the limiting block (41) and the inner surface of the mounting concave portion (24) so as to apply an abutting force towards the lock sleeve (11) to the limiting block (41).

8. The connection assembly of claim 4, wherein,

The limiting piece (40) comprises a limiting block (41), a first matching tooth (411) is arranged at one end, facing the lock sleeve (11), of the limiting block (41), a second matching tooth (131) capable of being meshed with the first matching tooth (411) is arranged on the first limiting part (13), and a third matching tooth (141) capable of being meshed with the first matching tooth (411) is arranged on the second limiting part (14); and/or the number of the groups of groups,

The drive handle (20) further comprises a cover plate (26), the cover plate (26) being arranged at the mounting recess (24) and being capable of blocking the mounting recess (24).

9. A locking mechanism comprising a lock cylinder structure (70) and a connection assembly, characterized in that,

The connection assembly is the connection assembly of any one of claims 1 to 8;

The lock cylinder structure (70) is provided with a locking rod (71) which can extend into the lock sleeve (11), a locking concave part (72) is arranged on the outer surface of the locking rod (71), when the driving sleeve (22) is positioned at the unlocking position, the locking rod (71) can move relative to the lock sleeve (11) along the axial direction, and when the driving sleeve (22) is positioned at the locking position, the locking piece (30) extends into the locking concave part (72) and limits the locking rod (71) to move relative to the lock sleeve (11) along the axial direction.

10. An LED display device comprising a locking mechanism, wherein the locking mechanism is the locking mechanism of claim 9.