CN219204914U - Lockset and LED display device with same - Google Patents

Abstract

The utility model provides a lock and an LED display device with the same, wherein the lock is arranged at an assembly through hole, and comprises: the mounting seat is provided with a mounting hole, the side wall of the mounting hole is provided with an annular guide chute, and the annular guide chute comprises a first limit position, a second limit position, a first bending switching section and a second bending switching section; the locking block is arranged outside the mounting seat and provided with a locking position and an unlocking position; the lock cylinder is movably and rotatably arranged in the mounting hole, the first end of the lock cylinder is connected with the locking piece, the lock cylinder is provided with a guide part, and the guide part is slidably inserted in the annular guide sliding groove and drives the locking piece to switch between an unlocking position and a locking position; and the resetting piece is arranged in the mounting hole and can enable the guide part to be kept at the first limit position or the second limit position. The technical scheme of the application can effectively solve the problem that the driving end of the tool in the related technology is easy to break to influence maintenance efficiency.

Description

Lockset and LED display device with same

Technical Field

The utility model relates to the technical field of LED display, in particular to a lockset and an LED display device with the lockset.

Background

In the related art, an LED display device generally includes an LED housing and an LED module detachably connected to a front side of the LED housing through a lock.

The lock generally comprises a locking block, wherein the locking block is provided with a locking position which is intersected with the assembly through hole on the LED box body and an unlocking position which corresponds to the assembly through hole, and when the LED module needs to be taken down from the LED box body, the lock needs to be rotated to enable the locking block to be switched from the locking position to the unlocking position.

For the small-spacing LED display device which can only be subjected to front maintenance, the tool with smaller diameter at the driving end can only be used for driving the lockset to rotate, the driving end of the tool is easily broken under the influence of torsional force, and the maintenance efficiency is affected.

Disclosure of Invention

The utility model mainly aims to provide a lockset and an LED display device with the lockset, so as to solve the problem that the driving end of a tool in the related art is easy to break and the maintenance efficiency is affected.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a lock for an LED display device, the lock being provided at an assembly through hole, the lock comprising: the mounting seat is provided with a mounting hole, the side wall of the mounting hole is provided with an annular guide chute, and the annular guide chute comprises a first limit position, a second limit position, and a first bending switching section and a second bending switching section which are connected between the first limit position and the second limit position; the locking block is arranged outside the mounting seat and provided with a locking position intersected with the assembly through hole and an unlocking position corresponding to the assembly through hole; the lock cylinder is movably and rotatably arranged in the mounting hole, the first end of the lock cylinder is connected with the locking piece, the lock cylinder is provided with a guide part, the guide part is slidably inserted in the annular guide sliding groove and drives the locking piece to switch between an unlocking position and a locking position, the locking piece is positioned at the locking position when the guide part is positioned at the first limiting position, and the locking piece is positioned at the unlocking position when the guide part is positioned at the second limiting position; the reset piece is arranged in the mounting hole, and two ends of the reset piece respectively abut against the mounting seat and the lock cylinder to apply reset force to the lock cylinder in a direction away from the lock block, so that the guide part is kept at a first limit position or a second limit position; when an acting force in the opposite direction to the reset force is applied to the locking piece or the lock cylinder, the guide part enters the first bending switching section and moves to the second limiting position under the action of the reset force, or the guide part enters the second bending switching section and moves to the first limiting position under the action of the reset force, so that the locking piece is switched between the unlocking position and the locking position.

Further, the first bending switching section is arranged to protrude toward the locking piece, and the first bending switching section comprises a first inclined section and a second inclined section which are communicated with each other.

Further, the second bending switching section is arranged to protrude towards the locking piece, the second bending switching section comprises a third inclined section and a fourth inclined section which are communicated with each other, and the third inclined section is arranged adjacent to the second inclined section.

Further, the annular guide chute further comprises a first straight chute section extending along the axial direction of the mounting seat, the first straight chute section is located between the fourth inclined section and the first inclined section and is communicated with the fourth inclined section and the first inclined section, the first straight chute section extends towards the direction away from the locking piece relative to the fourth inclined section and the first inclined section, and the first limiting position is located in the first straight chute section.

Further, an inflection point between the fourth sloped segment and the first sloped segment is proximate to the fourth sloped segment relative to an axis of the first straight segment.

Further, the annular guide chute further comprises a second straight chute section extending along the axial direction of the mounting seat, the second straight chute section is positioned between the first inclined section and the second inclined section and is communicated with the first inclined section and the second inclined section, and the second straight chute section extends towards the direction approaching the locking block relative to the first inclined section and the second inclined section; an inflection point between the first inclined section and the second inclined section is adjacent to the first inclined section with respect to an axis of the second straight flute section.

Further, the central angle corresponding to the first bending switching section and/or the central angle corresponding to the second bending switching section is 90 degrees.

Further, the mount pad includes first pedestal portion and with first pedestal portion nested complex second pedestal portion, first pedestal portion includes first installation sleeve, second pedestal portion is the second installation sleeve, first installation sleeve cover is established in the second installation sleeve, first installation telescopic hole and second installation telescopic hole form the mounting hole, first installation telescopic tip is provided with first profile of tooth portion, be provided with second profile of tooth portion on the inside wall of second installation telescopic, clearance between first profile of tooth portion and the second profile of tooth portion forms annular direction spout.

Further, the first seat body part further comprises a connecting plate, the connecting plate is arranged at one end, far away from the second seat body part, of the first mounting sleeve, a first through hole is formed in the connecting plate, and the first end of the lock cylinder penetrates through the first through hole.

Further, one end of the second seat body far away from the first seat body is provided with a second through hole, the second end of the lock cylinder and/or an external tool can pass through the second through hole, and the end wall of the second end of the lock cylinder is provided with a driving hole.

Further, the lock core comprises a rod body part and a cap body part arranged at one end, far away from the locking piece, of the rod body part, the reset piece is sleeved on the rod body part, two ends of the reset piece respectively abut against the connecting plate and the cap body part, the lock core further comprises a pin shaft penetrating through the cap body part, and the end part of the pin shaft protrudes out of the side wall of the cap body part to form a guide part.

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

By applying the technical scheme of the utility model, the lock is arranged between the LED box body and the LED module and is arranged at the assembly through hole of the LED box body, the lock comprises the locking piece, the LED module is locked on the LED box body when the locking piece is intersected with the assembly through hole, and the LED module and the LED box body are unlocked when the locking piece corresponds to the assembly through hole, so that the LED module can be taken down from the LED box body. The lock further comprises a mounting seat, a lock core and a resetting piece, wherein an annular guide chute is formed in the mounting seat, and a guide part on the lock core can slide in the annular guide chute to drive the lock block to switch between a locking position and an unlocking position. The annular guide sliding groove comprises a first bending switching section and a second bending switching section, when the position of the locking piece is required to be switched, the lock cylinder is only required to be pushed to move in the mounting seat along the axial direction of the mounting seat, the guide part slides along the first bending switching section or the second bending switching section, the lock cylinder can also rotate relative to the mounting seat in the axial direction moving process of the mounting seat, and the locking piece can further rotate along with the lock cylinder to switch the position. In the operation process, an operator does not need to directly rotate the lock cylinder or the locking piece, only the lock cylinder or the locking piece is required to be pushed along the axial direction of the mounting seat, namely, the driving end of the corresponding tool does not need to bear torsional force, and the tool is not easy to break even if the radial size of the tool is smaller. Therefore, the technical scheme of the application can effectively solve the problem that the driving end of the tool in the related technology is easy to break to influence the maintenance efficiency.

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 lock according to the utility model;

FIG. 2 shows an exploded view of the lock of FIG. 1;

FIG. 3 shows a schematic cross-sectional view of the lock of FIG. 1;

FIG. 4 shows an expanded view of the annular guide runner of the lock of FIG. 1;

FIG. 5 shows a schematic perspective view of a second housing of the lock of FIG. 1;

FIG. 6 shows a schematic perspective view of the second housing portion of FIG. 5 at another angle;

FIG. 7 shows a schematic perspective view of a first housing of the lock of FIG. 1;

FIG. 8 shows a schematic perspective view of the first housing portion of FIG. 7 at another angle;

FIG. 9 shows a schematic perspective view of a lock cylinder of the lock of FIG. 1;

FIG. 10 shows a schematic perspective view of a lock block of the lock of FIG. 1;

FIG. 11 shows a schematic view of the use of an external tool to drive the lock of FIG. 1;

fig. 12 shows a schematic perspective view of an embodiment of an LED display device according to the utility model;

FIG. 13 shows an enlarged view at A of the LED display device of FIG. 12;

FIG. 14 shows an exploded schematic view of the LED display device of FIG. 12;

fig. 15 shows an enlarged view at B of the LED display device of fig. 14;

FIG. 16 is a schematic cross-sectional view showing a part of the structure of the LED display device of FIG. 12; and

fig. 17 is a schematic perspective view showing an LED module of the LED display device of fig. 12.

Wherein the above figures include the following reference numerals:

10. an LED box; 11. assembling the through hole; 20. a mounting base; 21. a mounting hole; 22. an annular guide chute; 221. a first curved switching section; 2211. a first sloped section; 2212. a second sloped section; 222. a second curved switching section; 2221. a third sloped section; 2222. a fourth sloped section; 223. a first straight slot section; 224. a second straight trough section; 225. a third straight trough section; 226. a fourth straight trough section; 23. a first seat portion; 231. a first mounting sleeve; 2311. a first tooth-shaped portion; 232. a connecting plate; 2321. a first via; 233. a first abutment projection; 234. a third abutment protrusion; 24. a second seat portion; 241. a second tooth-shaped portion; 242. a second via; 243. a first docking recess; 30. a locking piece; 31. a second docking recess; 40. a lock core; 41. a guide part; 42. a rod body; 421. a second abutment protrusion; 43. a cap body; 431. a drive hole; 44. a pin shaft; 50. a reset member; 60. an external tool; 61. a handle; 62. a thimble; 70. a fastener; 80. an LED module; 81. a bracket; 811. a mounting part;

a. an inflection point between the fourth sloped section and the first sloped section; l1, the axis of the first straight groove section; b. an inflection point between the first sloped section and the second sloped section; l2, the axis of the second straight flute section; c. the central angle corresponding to the first bending switching section; d. and the central angle corresponding to the second bending switching section.

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 to 11, the present application provides a lock for an LED display device, the lock of the present embodiment is disposed at an assembly through hole 11 of an LED housing 10, the lock includes: mount 20, lock block 30, lock cylinder 40, and reset 50. The mounting seat 20 is provided with a mounting hole 21, an annular guide chute 22 is arranged on the side wall of the mounting hole 21, and the annular guide chute 22 comprises a first limit position, a second limit position, a first bending switching section 221 and a second bending switching section 222 which are connected between the first limit position and the second limit position; the locking piece 30 is provided outside the mount 20, and has a locking position intersecting the fitting through hole 11 and an unlocking position corresponding to the fitting through hole 11; the lock cylinder 40 is movably and rotatably arranged in the mounting hole 21, a first end of the lock cylinder 40 is connected with the lock block 30, a guide part 41 is arranged on the lock cylinder 40, the guide part 41 is slidably inserted in the annular guide sliding groove 22 and drives the lock block 30 to switch between an unlocking position and a locking position, the lock block 30 is positioned at the locking position when the guide part 41 is positioned at the first limiting position, and the lock block 30 is positioned at the unlocking position when the guide part 41 is positioned at the second limiting position; the reset piece 50 is arranged in the mounting hole 21, and two ends of the reset piece 50 respectively abut against the mounting seat 20 and the lock cylinder 40 to apply a reset force to the lock cylinder 40 in a direction away from the lock block 30 so as to enable the guide part 41 to be kept at a first limit position or a second limit position; when a force in a direction opposite to the reset force is applied to the lock block 30 or the lock cylinder 40, the guide portion 41 enters the first bending switching section 221 and moves to the second limit position under the reset force, or the guide portion 41 enters the second bending switching section 222 and moves to the first limit position under the reset force, so that the lock block 30 is switched between the unlock position and the lock position.

By applying the technical scheme of the embodiment, the lock is installed between the LED box 10 and the LED module 80 and is arranged at the position of the assembly through hole 11 of the LED box 10, the lock comprises the lock block 30, the LED module 80 is locked on the LED box 10 when the lock block 30 is intersected with the assembly through hole 11 (i.e. the lock block 30 is positioned at the locking position), and the LED module 80 and the LED box 10 are unlocked when the lock block 30 corresponds to the assembly through hole 11 (i.e. the lock block 30 is positioned at the unlocking position) so that the LED module 80 can be removed from the LED box 10. The lock further comprises a mounting seat 20, a lock cylinder 40 and a reset piece 50, wherein the mounting seat 20 is provided with an annular guide chute 22, and a guide part 41 on the lock cylinder 40 can slide in the annular guide chute 22 to drive the lock block 30 to switch between a locking position and an unlocking position. The annular guiding chute 22 comprises a first bending switching section 221 and a second bending switching section 222, when the position of the lock block 30 needs to be switched, the lock cylinder 40 is only required to be pushed to move in the mounting seat 20 along the axial direction of the mounting seat 20, the guiding part 41 slides along the first bending switching section 221 or the second bending switching section 222, so that the lock cylinder 40 can also rotate relative to the mounting seat 20 in the process of moving relative to the axial direction of the mounting seat 20, and the lock block 30 can further rotate along with the lock cylinder 40 to switch the position. That is, in the operation process, an operator does not need to directly rotate the lock cylinder 40 or the lock block 30, only needs to push the lock cylinder 40 or the lock block 30 along the axial direction of the mounting seat 20, that is, the driving end of the corresponding tool (that is, the thimble 62 of the external tool 60 in the embodiment) does not need to bear torsion force, and even if the radial dimension of the driving end is smaller, the driving end is not easy to break. Therefore, the technical scheme of the embodiment can effectively solve the problem that the driving end of the tool in the related technology is easy to break and the maintenance efficiency is affected.

Specifically, as shown in fig. 4, in the present embodiment, the annular guide chute 22 includes a first limit position, a second limit position, and a first curved switching section 221 and a second curved switching section 222 connected between the first limit position and the second limit position, the lock piece 30 is located at the lock position when the guide portion 41 is located at the first limit position, and the lock piece 30 is located at the unlock position when the guide portion 41 is located at the second limit position. When the lock block 30 needs to be subjected to position switching, the lock cylinder 40 or the lock block 30 only needs to be driven to move along the axial direction of the lock cylinder 40 or the lock block 30 relative to the mounting seat 20, specifically, when the guide part 41 moves from the first limit position to the second limit position through the first bending switching section 221, the lock block 30 is switched from the locking position to the unlocking position; when the guide portion 41 moves from the second limit position to the first limit position through the second bending switching section 222, the lock piece 30 switches the lock position from the unlock position.

Specifically, in this embodiment, the locking piece 30 is a cuboid structure, the assembly through hole 11 is a rectangular through hole adapted to the cross-sectional shape of the cuboid structure, and the above-mentioned "the locking piece 30 intersects with the assembly through hole 11" means that the long side of the cuboid structure intersects with the long side of the rectangular through hole and the cuboid structure is matched with the solid structure stop of the periphery of the assembly through hole 11; the above-mentioned "the lock piece 30 corresponds to the fitting through hole 11" means that the projection of the rectangular parallelepiped structure on the plane of the fitting through hole 11 falls entirely within the range of the fitting through hole 11. The above-mentioned "the reset member 50 keeps the guide portion 41 at the first limit position or the second limit position" means that the reset force of the reset member 50 can push the key cylinder 40 so that the guide portion 41 moves to the first limit position along the second bending switching section 222 and keeps at the first limit position or push the key cylinder 40 so that the guide portion 41 moves to the second limit position along the first bending switching section 221 and keeps at the second limit position.

As shown in fig. 1 to 4, the first bending switching section 221 is provided protruding toward the lock block 30, and the first bending switching section 221 includes a first inclined section 2211 and a second inclined section 2212 communicating with each other. After pushing the lock cylinder 40 to enter the first inclined section 2211 from the first limiting position, the guide part 41 moves to the intersection position of the first inclined section 2211 and the second inclined section 2212 along the first inclined section 2211, and in the process, the lock cylinder 40 drives the lock block 30 to move and rotate for a certain angle in a direction away from the mounting seat 20; when the pushing force on the lock cylinder 40 is removed, the lock cylinder 40 moves to the second limit position along the second inclined segment 2212 under the action of the restoring force of the restoring member 50 and is kept at the second limit position, and in this process, the lock cylinder 40 drives the lock block 30 to move toward the direction approaching the mounting base 20 and further rotate by a certain angle. After the above-described actions, the lock block 30 is moved from the locking position to the unlocking position (corresponding to the third to fifth states from top to bottom in fig. 11), so that the LED module 80 can be removed from the LED housing 10.

As shown in fig. 1 to 4, the second bending switching section 222 is provided protruding toward the lock block 30, the second bending switching section 222 includes a third inclined section 2221 and a fourth inclined section 2222 that are communicated with each other, and the third inclined section 2221 is provided adjacent to the second inclined section 2212. After pushing the lock cylinder 40 to enter the third inclined section 2221 from the second limiting position, the guide part 41 moves to the intersection position of the third inclined section 2221 and the fourth inclined section 2222 along the third inclined section 2221, and in this process, the lock cylinder 40 drives the lock block 30 to move and rotate for a certain angle in a direction away from the mounting seat 20; when the pushing force to the lock cylinder 40 is removed, the lock cylinder 40 moves to the first limit position along the fourth inclined section 2222 under the action of the restoring force of the restoring member 50 and is maintained at the first limit position, and in this process, the lock cylinder 40 drives the lock block 30 to move toward a direction approaching the mounting base 20 and further rotate by a certain angle. After the above-described actions, the lock block 30 is moved from the unlock position to the lock position (corresponding to the first to third states from top to bottom in fig. 11), so that the LED module 80 can be locked on the LED housing 10.

Specifically, the first inclined section 2211, the second inclined section 2212, the third inclined section 2221 and the fourth inclined section 2222 may be straight sections or curved sections, further, the first curved switching section 221 formed by the first inclined section 2211 and the second inclined section 2212 may be a polygonal chute or a curved chute, and the second curved switching section 222 formed by the third inclined section 2221 and the fourth inclined section 2222 may be a polygonal chute or a curved chute.

As shown in fig. 1 to 4, the annular guide chute 22 further includes a first straight groove section 223 extending in the axial direction of the mount 20, the first straight groove section 223 is located between the fourth inclined section 2222 and the first inclined section 2211 and is communicated with both the fourth inclined section 2222 and the first inclined section 2211, the first straight groove section 223 extends in a direction away from the lock block 30 with respect to the fourth inclined section 2222 and the first inclined section 2211, and the first limit position is located in the first straight groove section 223. The first straight groove section 223 is provided between the first inclined section 2211 and the fourth inclined section 2222 so that the guide 41 can be stably held at the first limit position between the first inclined section 2211 and the fourth inclined section 2222.

As shown in fig. 1 to 4, the inflection point a between the fourth inclined section 2222 and the first inclined section 2211 is close to the fourth inclined section 2222 with respect to the axis L1 of the first straight groove section 223. Thus, when the lock cylinder 40 is pushed so that the guide part 41 moves along the first straight groove section 223 to the intersection between the fourth inclined section 2222 and the first inclined section 2211, the guide part 41 can continue to move towards the first inclined section 2211 without moving towards the fourth inclined section 2222, and the guide part 41 can move in the annular guide sliding groove 22 according to the preset direction without retreating.

Correspondingly, as shown in fig. 1 to 4, the annular guiding chute 22 further includes a third straight groove section 225 extending along the axial direction of the mounting base 20, the third straight groove section 225 is located between the second inclined section 2212 and the third inclined section 2221 and is communicated with both the second inclined section 2212 and the third inclined section 2221, the third straight groove section 225 extends toward a direction away from the locking piece 30 relative to the second inclined section 2212 and the third inclined section 2221, and the second limiting position is located in the third straight groove section 225. The inflection point between the second inclined section 2212 and the third inclined section 2221 is close to the second inclined section 2212 with respect to the axis of the third straight flute section 225.

As shown in fig. 1 to 4, the annular guide chute 22 further includes a second straight groove section 224 extending in the axial direction of the mount 20, the second straight groove section 224 being located between the first inclined section 2211 and the second inclined section 2212 and communicating with both the first inclined section 2211 and the second inclined section 2212, the second straight groove section 224 extending toward a direction approaching the lock block 30 with respect to the first inclined section 2211 and the second inclined section 2212; the inflection point b between the first inclined section 2211 and the second inclined section 2212 is close to the first inclined section 2211 with respect to the axis L2 of the second straight groove section 224. A second straight groove section 224 with an axis L2 offset from an inflection point b between the first inclined section 2211 and the second inclined section 2212 is provided between the first inclined section 2211 and the second inclined section 2212, so that after the pushing force to the lock cylinder 40 is removed, the guide portion 41 can be moved into the second inclined section 2212 by the restoring force of the restoring member 50 without moving toward the first inclined section 2211, ensuring that the guide portion 41 can be moved in the annular guide chute 22 in a preset direction without retracting.

Correspondingly, as shown in fig. 1 to 4, the annular guiding chute 22 further includes a fourth straight groove section 226 extending along the axial direction of the mount 20, the fourth straight groove section 226 being located between the third inclined section 2221 and the fourth inclined section 2222 and communicating with both the third inclined section 2221 and the fourth inclined section 2222, the fourth straight groove section 226 extending toward a direction approaching the lock block 30 with respect to the third inclined section 2221 and the fourth inclined section 2222; the inflection point between the third inclined section 2221 and the fourth inclined section 2222 is located close to the third inclined section 2221 with respect to the axis of the fourth straight flute section 226.

As shown in fig. 11, in the present embodiment, the central angle c corresponding to the first curved switching section 221 and the central angle d corresponding to the second curved switching section 222 are 90 °. The central angle corresponding to the first inclined segment 2211, the central angle corresponding to the second inclined segment 2212, the central angle corresponding to the third inclined segment 2221 and the central angle corresponding to the fourth inclined segment 2222 are all 45 °.

Fig. 4 shows an expanded view of the annular guide chute 22 of the lock of the present embodiment, and the guide portion 41 can be slid cyclically along the annular guide chute 22 in a prescribed direction (i.e., right-to-left direction in fig. 4).

The movement of the lock block 30 with respect to the fitting through hole 11 is explained below with reference to fig. 4 and 11:

when the lock block 30 is located at the unlock position (corresponding to the uppermost state in fig. 11), the axis of the lock block 30 coincides with the axis of the fitting through hole 11 or has only a small included angle, and the guide portion 41 is located at the second limit position within the third straight groove section 225;

when it is necessary to lock the LED housing 10 and the LED module 80, the lock cylinder 40 is pushed by using the external tool 60, the guide portion 41 moves along the third inclined section 2221, the lock block 30 rotates relative to the fitting through hole 11, the guide portion 41 is pushed into the fourth straight groove section 226, and the lock cylinder 40 rotates 45 ° relative to the fitting through hole 11 (corresponding to the second state from top to bottom in fig. 11); after the pushing force on the lock cylinder 40 is removed, the lock cylinder 40 moves the guide part 41 along the fourth inclined section 2222 under the action of the reset piece 50, the lock block 30 continues to rotate relative to the assembly through hole 11, the guide part 41 is pushed into the first straight groove section 223, the lock cylinder 40 rotates 45 degrees further relative to the assembly through hole 11 (corresponding to the third state from top to bottom in fig. 11), and at this time, an included angle of about 90 degrees is formed between the axis of the lock block 30 and the axis of the assembly through hole 11;

when it is necessary to unlock the LED box 10 and the LED module 80, the lock cylinder 40 is pushed by using the external tool 60, the guide portion 41 moves along the first inclined section 2211, the lock block 30 rotates relative to the assembly through hole 11, the guide portion 41 is pushed into the second straight groove section 224, and the lock cylinder 40 rotates 45 ° relative to the assembly through hole 11 (corresponding to the fourth state from top to bottom in fig. 11); after the ejection force on the lock cylinder 40 is removed, the lock cylinder 40 moves the guide portion 41 along the second inclined section 2212 under the action of the reset member 50, the lock block 30 continues to rotate relative to the fitting through hole 11, the guide portion 41 is ejected into the third straight groove section 225, and the lock cylinder 40 rotates by 45 ° further relative to the fitting through hole 11 (corresponding to the fifth state from top to bottom in fig. 11), at which time the axis of the lock block 30 coincides with the axis of the fitting through hole 11 or has only a small included angle.

The process of rotating the lock block 30 from the uppermost state in fig. 11 (setting the state in which the lock block 30 is located at the 0 ° position) 360 ° back to the state is: the external tool 60 first abuts against the lock cylinder 40, and the lock block 30 extends forwards and rotates to a 45-degree position; the first time the external tool 60 is released, the lock block 30 is retracted and rotated to the 90 position; the external tool 60 is propped against the lock cylinder 40 for the second time, and the lock block 30 extends forwards and rotates to a 135 DEG position; the outer tool 60 is released a second time and the lock block 30 is retracted and rotated to the 180 position; the external tool 60 abuts against the lock cylinder 40 for the third time, and the lock block 30 extends forwards and rotates to a 225-degree position; the outer tool 60 is released a third time and the lock block 30 is retracted and rotated to the 270 ° position; the external tool 60 abuts against the lock cylinder 40 for the fourth time, and the lock block 30 extends forwards and rotates to a 315 DEG position; the outer tool 60 is released a fourth time and the lock block 30 is retracted and rotated to the 360 position (i.e., back to the 0 position).

As shown in fig. 1 to 3 and fig. 5 to 8, the mounting base 20 includes a first base body 23 and a second base body 24 nested with the first base body 23, the first base body 23 includes a first mounting sleeve 231, the second base body 24 is a second mounting sleeve, the first mounting sleeve 231 is sleeved in the second mounting sleeve, an inner hole of the first mounting sleeve 231 and an inner hole of the second mounting sleeve form a mounting hole 21, a first tooth-shaped portion 2311 is provided at an end of the first mounting sleeve 231, a second tooth-shaped portion 241 is provided on an inner side wall of the second mounting sleeve, and a gap between the first tooth-shaped portion 2311 and the second tooth-shaped portion 241 forms an annular guiding chute 22. Providing the mount 20 as a separate structure facilitates the installation of the lock cylinder 40 and the reset member 50 into the mounting hole 21. The annular guide chute 22 is formed by arranging the first tooth-shaped portion 2311 on the first mounting sleeve 231 and the second tooth-shaped portion 241 on the second mounting sleeve and by the gap between the first tooth-shaped portion 2311 and the second tooth-shaped portion 241, and has the advantages of simple structure and convenience in processing.

Specifically, as shown in fig. 4, in the present embodiment, the first inclined section 2211 and the third inclined section 2221 are identical in structure, the second inclined section 2212 and the fourth inclined section 2222 are identical in structure, the first straight groove section 223 and the third straight groove section 225 are identical in structure, and the second straight groove section 224 and the fourth straight groove section 226 are identical in structure, so that the machining of the first tooth shape portion 2311 and the second tooth shape portion 241 is facilitated.

Specifically, as shown in fig. 5 to 8, the first docking protrusion 233 is provided on the outer side wall of the first mounting sleeve 231, the first docking recess 243 is provided on the second mounting sleeve, and when the first seat body 23 and the second seat body 24 are assembled, the first docking protrusion 233 is inserted into the first docking recess 243, so that the circumferential positioning between the first mounting sleeve 231 and the second mounting sleeve is achieved. The outer side wall of the first mounting sleeve 231 is further provided with a third butt joint convex part 234, and the third butt joint convex part 234 can be in propping fit with the end surface of the second mounting sleeve, so that axial positioning between the first mounting sleeve 231 and the second mounting sleeve is realized.

As shown in fig. 5 to 8, 12, 13 and 16, in the present embodiment, the lock is disposed on the LED module 80, the LED module 80 includes a bracket 81, the first housing portion 23 further includes a connection plate 232, the connection plate 232 is disposed at an end of the first mounting sleeve 231 away from the second housing portion 24, a first via hole 2321 is disposed on the connection plate 232, and a first end of the lock cylinder 40 is disposed through the first via hole 2321. The lock is mounted to the bracket 81 by a connection plate 232, and in particular is secured to the bracket 81 by fasteners passing through the bracket 81 and the connection plate 232.

Specifically, as shown in fig. 12, 13, 16 and 17, a mounting portion 811 matching the shape of the lock is provided on the bracket 81, the mounting portion 811 has a first accommodating chamber and a second accommodating chamber which are mutually communicated, the first mounting sleeve 231 and the second mounting sleeve are disposed in the first accommodating chamber, the connecting plate 232 is disposed in the second accommodating chamber, the first accommodating chamber has a bottom wall, the depth of the first accommodating chamber is adapted to the length after the first mounting sleeve 231 and the second mounting sleeve are abutted, when the lock is mounted on the mounting portion 811, one end of the second mounting sleeve away from the first mounting sleeve abuts against the bottom wall of the first accommodating chamber, the connecting plate 232 is fixedly connected with the bottom wall of the second accommodating chamber, and the relative positions between the first seat portion 23 and the second seat portion 24 are fixed, i.e., without additionally providing a fixing structure for fixing the first seat portion 23 and the second seat portion 24.

Of course, to ensure a secure connection between the second housing part and the second housing part, it is also possible to have both have an interference fit or to use a fastener (e.g. a screw) for the secure connection of both.

As shown in fig. 3, 5, 6, 11 and 16, the end of the second housing part 24 remote from the first housing part 23 has a second through hole 242, and the second end of the lock cylinder 40 and the external tool 60 can pass through the second through hole 242, and a driving hole 431 is provided in an end wall of the second end of the lock cylinder 40. The external tool 60 includes a handle 61 and a thimble 62, and when front maintenance is required for the LED display device, especially for a small-pitch LED display device (for example, a display device with pitch P3 or P4), a through hole may be provided on the bottom wall of the first accommodating cavity of the mounting portion 811 and on the lamp panel, so that the thimble can pass through the through hole and extend into the driving hole 431, and then an operator can hold the handle 61 and push the lock cylinder 40, so that the lock cylinder 40 moves and rotates to enable the lock block 30 to switch positions.

In particular, in the present embodiment, since it is not necessary to directly rotate the lock cylinder 40 or the lock block 30 using a tool, the radial dimension of the ejector pin 62 may be set smaller, for example, such that the diameter of the ejector pin 62 is between 0.5mm and 2 mm.

As shown in fig. 3 and 9, the lock cylinder 40 includes a rod body 42 and a cap body 43 disposed at one end of the rod body 42 far away from the lock block 30, the reset element 50 is sleeved on the rod body 42, two ends of the reset element 50 respectively abut against the connecting plate 232 and the cap body 43, the lock cylinder 40 further includes a pin 44 penetrating through the cap body 43, and an end of the pin 44 protrudes out of a side wall of the cap body 43 to form a guide portion 41. By providing the pin 44 on the cap body 43 to form the guide portion 41, the guide projection is simple in structure and easy to process compared with the guide projection which is directly processed on the cap body 43. Specifically, in the present embodiment, the restoring member 50 is a compression spring. The two ends of the compression spring respectively abut against the connecting plate 232 and the cap body 43, so that the guide part 41 can be kept at the first limit position or the second limit position, and the pin shaft 44 penetrates through the cap body 43, so that interference with the reset piece 50 can be avoided.

As shown in fig. 1 to 3, 9 and 10, the second docking protrusion 421 is provided on the rod body 42, the second docking recess 31 is provided on the lock block 30, and when assembling, the second docking protrusion 421 is inserted into the second docking recess 31, and then the lock cylinder 40 and the lock block 30 are fixed together by the fastener 70.

As shown in fig. 12 to 17, the present application further provides an LED display device, and an embodiment of the LED display device of the present application includes an LED housing 10, an LED module 80 disposed at a front side of the LED housing 10, and a lock disposed between the LED housing 10 and the LED module 80. The lockset is the lockset, and the problem that the maintenance efficiency is affected due to the fact that the driving end of a tool in the related technology is easy to break can be effectively solved by the lockset.

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 (12)

1. A lock for an LED display device, the lock being provided at an assembly through hole (11), characterized in that the lock comprises:

the mounting seat (20), the mounting seat (20) is provided with a mounting hole (21), an annular guide chute (22) is arranged on the side wall of the mounting hole (21), and the annular guide chute (22) comprises a first limit position, a second limit position, a first bending switching section (221) and a second bending switching section (222) which are connected between the first limit position and the second limit position;

a lock block (30) which is provided outside the mount (20) and has a locking position intersecting the fitting through hole (11) and an unlocking position corresponding to the fitting through hole (11);

the lock cylinder (40) is movably and rotatably arranged in the mounting hole (21), a first end of the lock cylinder (40) is connected with the locking piece (30), a guide part (41) is arranged on the lock cylinder (40), the guide part (41) is slidably inserted into the annular guide sliding groove (22) and drives the locking piece (30) to switch between the unlocking position and the locking position, the locking piece (30) is positioned at the locking position when the guide part (41) is positioned at the first limiting position, and the locking piece (30) is positioned at the unlocking position when the guide part (41) is positioned at the second limiting position;

a reset piece (50) arranged in the mounting hole (21), wherein two ends of the reset piece (50) respectively prop against the mounting seat (20) and the lock cylinder (40) to apply a reset force to the lock cylinder (40) in a direction away from the lock block (30) so as to enable the guide part (41) to be kept at the first limit position or the second limit position;

when a force in the opposite direction to the reset force is applied to the lock block (30) or the lock cylinder (40), the guide part (41) enters the first bending switching section (221) and moves to the second limit position under the reset force or the guide part (41) enters the second bending switching section (222) and moves to the first limit position under the reset force, so that the lock block (30) is switched between the unlocking position and the locking position.

2. The lock according to claim 1, characterized in that the first curved switching section (221) is arranged protruding towards the locking piece (30), the first curved switching section (221) comprising a first inclined section (2211) and a second inclined section (2212) communicating with each other.

3. The lock according to claim 2, wherein the second curved switching section (222) is arranged protruding towards the lock block (30), the second curved switching section (222) comprising a third inclined section (2221) and a fourth inclined section (2222) communicating with each other, the third inclined section (2221) being arranged adjacent to the second inclined section (2212).

4. A lock according to claim 3, wherein the annular guide runner (22) further comprises a first straight groove section (223) extending in the axial direction of the mount (20), the first straight groove section (223) being located between the fourth inclined section (2222) and the first inclined section (2211) and being in communication with both the fourth inclined section (2222) and the first inclined section (2211), the first straight groove section (223) extending in a direction away from the lock block (30) with respect to the fourth inclined section (2222) and the first inclined section (2211), the first limit position being located within the first straight groove section (223).

5. The lock according to claim 4, characterized in that the inflection point (a) between the fourth inclined section (2222) and the first inclined section (2211) is close to the fourth inclined section (2222) with respect to the axis (L1) of the first straight slot section (223).

6. The lock according to claim 3, wherein,

the annular guide chute (22) further comprises a second straight chute section (224) extending in the axial direction of the mount (20), the second straight chute section (224) being located between the first inclined section (2211) and the second inclined section (2212) and communicating with both the first inclined section (2211) and the second inclined section (2212), the second straight chute section (224) extending in a direction towards the lock block (30) with respect to the first inclined section (2211) and the second inclined section (2212);

an inflection point (b) between the first inclined section (2211) and the second inclined section (2212) is close to the first inclined section (2211) with respect to an axis (L2) of the second straight groove section (224).

7. A lock according to claim 3, characterized in that the central angle (c) corresponding to the first curved switching section (221) and/or the central angle (d) corresponding to the second curved switching section (222) is 90 °.

8. The lock according to any one of claims 1 to 7, wherein the mounting base (20) comprises a first base body (23) and a second base body (24) nested with the first base body (23), the first base body (23) comprises a first mounting sleeve (231), the second base body (24) is a second mounting sleeve, the first mounting sleeve (231) is sleeved in the second mounting sleeve, an inner hole of the first mounting sleeve (231) and an inner hole of the second mounting sleeve form the mounting hole (21), a first tooth (2311) is arranged at an end of the first mounting sleeve (231), a second tooth (241) is arranged on an inner side wall of the second mounting sleeve, and a gap between the first tooth (2311) and the second tooth (241) forms the annular guide chute (22).

9. The lock according to claim 8, wherein the first housing portion (23) further comprises a connecting plate (232), the connecting plate (232) is disposed at an end of the first mounting sleeve (231) away from the second housing portion (24), a first through hole (2321) is disposed on the connecting plate (232), and the first end of the lock cylinder (40) is disposed through the first through hole (2321).

10. The lock according to claim 9, characterized in that the end of the second housing part (24) remote from the first housing part (23) has a second through hole (242), through which second through hole (242) the second end of the lock cylinder (40) and/or an external tool (60) can pass, the end wall of the second end of the lock cylinder (40) being provided with a drive hole (431).

11. The lock according to claim 10, wherein the lock core (40) comprises a rod body (42) and a cap body (43) arranged at one end of the rod body (42) away from the lock block (30), the reset piece (50) is sleeved on the rod body (42) and two ends of the reset piece (50) respectively abut against the connecting plate (232) and the cap body (43), the lock core (40) further comprises a pin shaft (44) penetrating through the cap body (43), and the end part of the pin shaft (44) protrudes out of the side wall of the cap body (43) to form the guide part (41).

12. An LED display device comprising a lock, characterized in that the lock is a lock according to any one of claims 1 to 11.

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