CN217950901U

CN217950901U - Quick connection lock and LED display screen with same

Info

Publication number: CN217950901U
Application number: CN202221722049.4U
Authority: CN
Inventors: 李军; 郑金龙
Original assignee: Lemass Hunan Optoelectronic Co Ltd
Current assignee: Lemass Hunan Optoelectronic Co Ltd
Priority date: 2022-07-05
Filing date: 2022-07-05
Publication date: 2022-12-02
Anticipated expiration: 2032-07-05

Abstract

The utility model provides a quick connect lock and have its LED display screen, this quick connect lock includes: the base body is provided with a through hole which penetrates through the base body; the locking rod is rotatably and movably arranged in the through hole along the axial direction of the locking rod in a penetrating way, and one end of the locking rod is provided with a locking boss positioned outside the through hole; be provided with guide structure between the pore wall of the lateral wall of locking lever and through-hole, guide structure includes the guide way and stretches into the guide post in the guide way, the guide way includes first groove section and second groove section, the axial extension of locking lever is followed to first groove section, the one end of second groove section is linked together with the one end of keeping away from the locking boss of first groove section, the second groove section extends along locking lever circumference, the guide post sets up on the pedestal and stretches into in the through-hole, the guide way sets up on the lateral wall of locking lever, perhaps, the guide post sets up on the lateral wall of locking lever, the guide way sets up on the pore wall of through-hole. Through the technical scheme provided by the application, the problem that the connection lock in the related technology is inconvenient to operate can be solved.

Description

Quick connection lock and LED display screen with same

Technical Field

The utility model relates to a display screen connects technical field, particularly, relates to a quick connect lock and have its LED display screen.

Background

Due to the excellent display effect and applicability of the LED display screen, the LED display screen is widely applied to the industries of stages, commercial performances, advertisements, exhibitions and the like. The general LED display screen is composed of smaller display screen units, and when the display area requirement is larger, a large number of display screen units are needed to be assembled.

In the related art, a plurality of display screen units are connected and fixed by using a connecting lock.

However, the connection lock in the related art requires a large force during operation, so that the connection lock has a problem of inconvenient operation.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick connect lock and have its LED display screen to solve the problem that the connection lock in the correlation technique has inconvenient operation.

According to an aspect of the utility model, a quick connect lock is provided, and quick connect lock includes: the base body is provided with a through hole which penetrates through the base body; the locking rod is rotatably and movably arranged in the through hole along the axial direction of the locking rod in a penetrating way, and one end of the locking rod is provided with a locking boss positioned outside the through hole; wherein, be provided with guide structure between the pore wall of the lateral wall of locking lever and through-hole, guide structure includes the guide way and stretches into the guide post in the guide way, the guide way includes first groove section and second groove section, the axial extension of locking lever is followed to first groove section, the one end of second groove section is linked together with the one end of keeping away from the locking boss of first groove section, the second groove section extends along locking lever circumference, the guide post sets up on the pedestal and stretches into in the through-hole, the guide way sets up on the lateral wall of locking lever, perhaps, the guide post sets up on the lateral wall of locking lever, the guide way sets up on the pore wall of through-hole.

Furthermore, the quick connection lock further comprises a handle, the handle is connected with one end, far away from the locking boss, of the locking rod, and the locking boss and the handle are respectively located on two sides of the seat body.

Further, the quick connect lock still includes the rotation feedback structure, rotates the feedback structure and sets up between handle and pedestal.

Further, the pedestal includes the pedestal body and with this body coupling's of pedestal first barrel, the handle cover is established on first barrel, the locking lever wears to locate first barrel, rotates the feedback structure and sets up between the inner wall of handle and the lateral wall of first barrel.

Further, the rotational feedback structure includes: the feedback teeth are arranged on the outer side wall of the first cylinder at intervals along the circumferential direction of the first cylinder; the button is rotatably arranged on the handle, a first end of the button extends into the handle, a second end of the button is positioned on the outer side of the handle, and a feedback boss meshed with the feedback teeth is arranged at the first end of the button; and the button resetting piece is arranged between the button and the handle.

Furthermore, the quick connect lock also comprises a return spring, the base body comprises a base body and a first cylinder body connected with the base body, the handle sleeve is arranged on the first cylinder body, the lock rod penetrates through the first cylinder body, the return spring is arranged in the first cylinder body and is sleeved on the lock rod, and two ends of the return spring are respectively abutted to the first cylinder body and the handle.

Further, the pedestal includes pedestal body, first barrel and second barrel, and first barrel and second barrel are connected with the both sides of pedestal body respectively, and first barrel, pedestal body and second barrel are worn to locate by the locking lever, and the lateral wall of locking lever and the inside wall clearance fit of second barrel.

Further, the length of the second groove section is equal to one fourth of the perimeter of the outer contour of the cross section of the locking rod; and/or the first groove section is perpendicular to the second groove section.

Furthermore, the guide structure comprises two guide grooves and two guide columns which are correspondingly arranged, the two guide grooves are arranged at intervals along the circumferential direction of the lock rod, the first groove sections of the two guide grooves are parallel to each other, and the extension directions of the second groove sections of the two guide grooves are the same; and/or the guide post comprises a fastener, one end of the fastener is in threaded connection with the seat body, and the other end of the fastener extends into the guide groove; and/or one side of the seat body close to the locking boss is provided with a positioning column.

According to the utility model discloses an on the other hand provides a LED display screen, and the LED display screen includes: at least two display units; the quick connection lock is arranged between two adjacent display units, one of the two adjacent display units is provided with a lock hole, the other of the two adjacent display units is provided with the quick connection lock, a locking boss of the quick connection lock has a locking state connected with the lock hole and an unlocking state separated from the lock hole, and the quick connection lock is the quick connection lock provided by the above.

Use the technical scheme of the utility model, the high-speed joint lock includes pedestal and locking lever, with pedestal and a display screen unit connection, sets up the lockhole on another display screen unit, utilizes the locking boss of locking lever to be connected with the lockhole, and then accomplishes assembling of two display screen units. A guide groove and a guide post extending into the guide groove are arranged between the outer side wall of the lock rod and the hole wall of the through hole, the guide groove comprises a first groove section extending along the axial direction of the lock rod and a second groove section extending along the circumferential direction of the lock rod, when the lock rod extends or retracts relative to the through hole along the axial direction of the lock rod, the guide post extends into the first groove section, the guide post and the first groove section move relatively in the extending direction of the first groove section, and the lock rod is guided in the extending or retracting process of the lock rod relative to the through hole through the mutual matching between the first groove section and the guide post; when the locking rod rotates around the axis of the locking rod relative to the through hole, the guide post extends into the second groove section, and the guide post and the second groove section move relatively in the extending direction of the second groove section, and the locking rod is guided relative to the through hole in the rotating process through the mutual matching between the second groove section and the guide post. Through set up guide structure between the lateral wall at the locking lever and the pore wall of through-hole for the locking lever all receives the guide effect for the rotation and the removal of through-hole, reduces the frictional force of locking lever when for the through-hole motion, and then reduces the required effort of high-speed joint lock in the course of the work, improves the just easy degree of operation of high-speed joint lock.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a quick connect lock provided by an embodiment of the present invention;

fig. 2 is a schematic structural view illustrating an unassembled seat of the quick-connect lock according to an embodiment of the present invention;

fig. 3 is a schematic structural view illustrating an unassembled handle of the quick-connect lock according to an embodiment of the present invention;

FIG. 4 illustrates a top view of a quick connect lock provided by an embodiment of the present invention;

FIG. 5 showsbase:Sub>A cross-sectional view at A-A in FIG. 4;

FIG. 6 shows a cross-sectional view at B-B in FIG. 4;

FIG. 7 shows a cross-sectional view at C-C in FIG. 4;

FIG. 8 illustrates a side view of a quick connect lock provided by an embodiment of the present invention;

fig. 9 is a schematic structural diagram illustrating another view angle of the quick connect lock according to an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. a base body; 11. a through hole; 12. a seat body; 13. a first cylinder; 14. a second cylinder; 15. a positioning column;

20. a lock lever; 21. locking the boss;

30. a guide structure; 31. a guide groove; 311. a first groove section; 312. a second groove section; 32. a guide post; 321. a fastener;

40. a handle; 41. a hinged column;

50. a rotation feedback structure; 51. a feedback tooth; 52. a button; 521. a feedback boss; 53. a button reset; 531. a torsion spring;

60. a return spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 8, the embodiment of the present invention provides a quick connection lock, this quick connection lock includes pedestal 10 and locking lever 20, pedestal 10 has through-hole 11 that runs through the setting, locking lever 20 is rotatable and can wear to locate through-hole 11 along its axial displacement, the one end of locking lever 20 is provided with the locking boss 21 that is located the outside of through-hole 11, wherein, be provided with guide structure 30 between the lateral wall of locking lever 20 and the pore wall of through-hole 11, guide structure 30 includes guide way 31 and stretches into the guide post 32 in the guide way 31, guide way 31 includes first groove section 311 and second groove section 312, first groove section 311 is along the axial extension of locking lever 20, the one end of second groove section 312 is linked together with the one end of keeping away from locking boss 21 of first groove section 311, second groove section 312 is along locking lever 20 circumference extension, guide post 32 sets up on pedestal 10 and stretches into in through-hole 11, guide way 31 sets up on the lateral wall of locking lever 20, or, guide post 32 sets up on the lateral wall of locking lever 20, guide way 31 sets up on the lateral wall of through-hole 11.

The quick connection lock provided by the embodiment comprises a base body 10 and a lock rod 20, wherein the base body 10 is connected with one display screen unit, a lock hole is formed in the other display screen unit, and the locking boss 21 of the lock rod 20 can be connected with the lock hole to further complete the assembly of the two display screen units. A guide groove 31 and a guide post 32 extending into the guide groove 31 are arranged between the outer side wall of the lock rod 20 and the hole wall of the through hole 11, the guide groove 31 comprises a first groove section 311 extending along the axial direction of the lock rod 20 and a second groove section 312 extending along the circumferential direction of the lock rod 20, when the lock rod 20 extends or retracts relative to the through hole 11 along the axial direction of the lock rod 20, the guide post 32 extends into the first groove section 311, the guide post 32 and the first groove section 311 move relatively in the extending direction of the first groove section 311, and the lock rod 20 is guided in the extending or retracting process of the lock rod 20 relative to the through hole 11 through the mutual matching between the first groove section 311 and the guide post 32; when the locking rod 20 rotates around the axis of the locking rod 20 relative to the through hole 11, the guide post 32 extends into the second groove section 312, and the guide post 32 and the second groove section 312 move relative to each other in the extending direction of the second groove section 312, so that the locking rod 20 is guided during the rotation of the locking rod 20 relative to the through hole 11 by the cooperation between the second groove section 312 and the guide post 32. Through set up guide structure 30 between the pore wall at the lateral wall of locking lever 20 and through-hole 11 for locking lever 20 all receives the guide effect for the rotation and the removal of through-hole 11, reduces the frictional force when locking lever 20 moves for through-hole 11, and then reduces the required effort of high-speed joint lock in the course of the work, improves the just degree of ease of operation of high-speed joint lock.

Specifically, when the quick-connect lock is installed, the lock rod 20 is pushed to enable the locking boss 21 to extend into the lock hole, torque is applied to the lock rod 20 again, the locking boss 21 is made to rotate to a locking state connected with the lock hole, the quick-connect lock is installed, when the quick-connect lock is disassembled, reverse torque is applied to the lock rod 20, the locking boss 21 is made to rotate to an unlocking state separated from the lock hole, the lock rod 20 is pulled to enable the locking boss 21 to be separated from the lock hole, and the quick-connect lock is disassembled.

In the present embodiment, the guide post 32 is provided on the housing 10 and extends into the through hole 11, and the guide groove 31 is provided on the outer side wall of the lock lever 20.

As shown in fig. 1, the quick-connect lock further includes a handle 40, the handle 40 is connected to an end of the lock rod 20 far away from the locking boss 21, and the locking boss 21 and the handle 40 are respectively located at two sides of the seat body 10. The locking lever 20 is driven to rotate or move relative to the through hole 11 by applying a force to the handle 40. Because be provided with guide structure 30 between the pore wall of locking lever 20's lateral wall and through-hole 11, when locking lever 20 moved for through-hole 11, can reduce the frictional force between locking lever 20 and the through-hole 11 to reduce the required external drive power of quick-connect lock, improve the connection efficiency and the use of quick-connect lock and experience.

As shown in fig. 1 to 3, the quick-connect lock further includes a rotation feedback structure 50, and the rotation feedback structure 50 is disposed between the handle 40 and the housing 10. By providing the rotation feedback structure 50 between the handle 40 and the housing 10, the rotation feedback structure 50 is triggered when the handle 40 drives the lock rod 20 to rotate relative to the through hole 11, thereby enhancing the user's experience of applying torque to the handle 40.

As shown in fig. 4 and 7, the seat body 10 includes a seat body 12 and a first cylinder 13 connected to the seat body 12, the handle 40 is sleeved on the first cylinder 13, a through hole 11 is formed in a space inside the first cylinder 13, the lock rod 20 is inserted into the first cylinder 13, and the rotation feedback structure 50 is disposed between an inner wall of the handle 40 and an outer side wall of the first cylinder 13. By disposing the rotation feedback structure 50 between the inner wall of the handle 40 and the outer wall of the first cylinder 13, the space between the handle 40 and the first cylinder 13 is fully utilized, so that the assembly among the lock rod 20, the handle 40 and the seat body 10 is compact, the overall size of the quick-connect lock is reduced, and the handle 40 rotates around the axis of the lock rod 20 relative to the first cylinder 13 when the handle 40 drives the lock rod 20 to rotate relative to the through hole 11.

As shown in fig. 3 and 7, the rotary feedback structure 50 includes a plurality of feedback teeth 51, a button 52 and a button reset 53, the plurality of feedback teeth 51 are disposed on the outer side wall of the first cylinder 13 at intervals along the circumferential direction of the first cylinder 13, the button 52 is rotatably disposed on the handle 40, a first end of the button 52 extends into the handle 40, a second end of the button 52 is located on the outer side of the handle 40, the first end of the button 52 is provided with a feedback boss 521 engaged with the feedback teeth 51, and the button reset 53 is disposed between the button 52 and the handle 40. When the quick connection lock is installed, pushing force is applied to the handle 40, after the locking boss 21 extends into the lock hole, torque is applied to the handle 40, the handle 40 rotates relative to the first barrel 13, the button 52 moves relative to the first barrel 13 along the circumferential direction of the first barrel 13, the feedback boss 521 and the feedback tooth 51 generate impact sound, the mechanical experience of a user is enhanced, the feedback boss 521 is meshed with the feedback tooth 51, the feedback tooth 51 has a stopping effect on the feedback boss 521, and the handle 40 cannot rotate reversely relative to the first barrel 13. When the quick connection lock is disassembled, the button 52 is pressed to drive the feedback boss 521 to be far away from the feedback tooth 51, the button resetting piece 53 is deformed to apply reverse torque to the handle 40, so that the handle 40 rotates reversely relative to the first cylinder 13, and after the button 52 is released, the button 52 is reset by the deformation force of the button resetting piece 53.

As shown in fig. 6 and 7, the middle of the button 52 is hinged to the hinge post 41 on the inner wall of the handle 40, so that the button 52 rotates around the axis of the hinge post 41 relative to the handle 40, and the axis of rotation of the button 52 is stable.

As shown in fig. 7, the button returning part 53 includes a torsion spring 531 sleeved on the hinge post 41, and two ends of the torsion spring 531 are respectively connected with the button 52 and the inner wall of the handle 40. When the quick-connect lock is removed, the first end of the button 52 is pushed to rotate the button 52 relative to the handle 40, the torsion spring 531 is compressed and deformed, and the button 52 is reset by the compression deformation force of the torsion spring 531 after the button 52 is released.

As shown in fig. 2 and 5, the quick connect lock further includes a return spring 60, the seat body 10 includes a seat body 12 and a first cylinder 13 connected to the seat body 12, the handle 40 is sleeved on the first cylinder 13, the lock rod 20 is inserted into the first cylinder 13, the return spring 60 is located in the first cylinder 13 and sleeved on the lock rod 20, and two ends of the return spring 60 are respectively abutted to the first cylinder 13 and the handle 40. When the quick connection lock is installed, thrust is applied to the handle 40, the locking boss 21 extends into the lock hole, the reset spring 60 is compressed and deformed, and when the quick connection lock is disassembled, when the locking boss 21 is separated from the lock hole, the compression deformation force of the reset spring 60 enables the locking boss 21 to be separated from the lock hole.

As shown in fig. 1 and 4, the seat body 10 includes a seat body 12, a first cylinder 13 and a second cylinder 14, the first cylinder 13 and the second cylinder 14 are respectively connected to two sides of the seat body 12, the lock rod 20 is inserted into the first cylinder 13, the seat body 12 and the second cylinder 14, and an outer side wall of the lock rod 20 is in clearance fit with an inner side wall of the second cylinder 14. When locking lever 20 is flexible for through-hole 11, because the lateral wall of locking lever 20 and the inside wall clearance fit of second barrel 14 for the inside wall of second barrel 14 plays the guide effect to locking lever 20, reduces the frictional force of locking lever 20 when flexible for through-hole 11, and then reduces the required effort of high-speed joint lock in the course of the work, improves the just degree of ease of operation of high-speed joint lock.

As shown in fig. 6 and 7, the length dimension of the second groove section 312 is equal to one-fourth of the circumference of the outer profile of the cross-section of the locking bar 20. By adopting the second groove section 312 with the above size, when the quick connection lock is installed, the locking boss 21 is ensured to rotate 90 degrees to be in a locking state connected with the lock hole, the locking boss 21 is prevented from further rotating to a position separated from the lock hole, and the operation simplicity and reliability of the quick connection lock are improved.

It should be noted that the length of the second groove section 312 is equal to a quarter of the circumference of the cross section of the locking rod 20, which means that the central angle of the cross section of the locking rod 20 occupied by the second groove section 312 is 90 °.

As shown in fig. 2, the first slot segment 311 is perpendicular to the second slot segment 312. When torque is applied to the lock rod 20, the first groove section 311 is perpendicular to the second groove section 312, so that the lock rod 20 only rotates relative to the through hole 11 under the guiding action of the second groove section 312, the locking boss 21 is prevented from being disengaged from the lock hole in the rotating process, and the connection reliability of the quick connection lock is improved.

As shown in fig. 2 and 5, the guide structure 30 includes two guide grooves 31 and two guide posts 32, the two guide grooves 31 are disposed at intervals along the circumference of the lock rod 20, the first groove sections 311 of the two guide grooves 31 are parallel to each other, and the second groove sections 312 of the two guide grooves 31 extend in the same direction. Because the guiding structure 30 comprises two guiding grooves 31 and two guiding columns 32 which are correspondingly arranged, when the locking rod 20 moves relative to the through hole 11, the guiding function of the guiding structure 30 on the locking rod 20 is enhanced, the friction force when the locking rod 20 moves relative to the through hole 11 is further reduced, and the operation convenience and the operation easiness degree of the quick connection lock are improved.

As shown in fig. 5, the guide post 32 includes a fastening member 321, one end of the fastening member 321 is screwed to the housing 10, and the other end of the fastening member 321 extends into the guide slot 31. By adopting the guide post 32, only a threaded hole needs to be formed in the seat body 10 during processing, so that the processing difficulty of the seat body 10 is reduced.

As shown in fig. 4, a positioning column 15 is disposed on one side of the seat body 10 close to the locking boss 21. When the quick connection lock is installed, the accuracy of installation is guaranteed and the installation efficiency is improved through the positioning effect of the positioning column 15.

The utility model discloses a still another embodiment provides a LED display screen, this LED display screen includes two at least display element and high-speed joint lock, the display element includes the box and sets up the lamp plate module on the box, the high-speed joint lock sets up between two adjacent display element, be provided with the lockhole on one of them display element's in two adjacent display element's the box, be provided with the high-speed joint lock on another display element's in two adjacent display element's the box, the locking boss 21 of high-speed joint lock has the locking state that is connected with the lockhole and the unblock state that breaks away from mutually with the lockhole, the high-speed joint lock that the high-speed joint lock provided for the aforesaid. Therefore, this embodiment can reduce the frictional force of locking lever 20 when moving for through-hole 11 through the guide structure 30 that sets up between the lateral wall of locking lever 20 and the pore wall of through-hole 11, and then reduces the required effort of high-speed joint lock in the course of the work, improves the just degree of ease of the concatenation of LED display screen.

Use the utility model provides a technical scheme has following beneficial effect:

(1) The friction force of the locking rod 20 relative to the through hole 11 during movement is reduced through the guide structure 30 arranged between the outer side wall of the locking rod 20 and the hole wall of the through hole 11, so that the acting force required by the quick connection lock in the working process is reduced, and the connection efficiency of the quick connection lock is improved;

(2) By arranging the rotation feedback structure 50 between the handle 40 and the seat body 10, when the handle 40 drives the lock rod 20 to rotate relative to the through hole 11, the experience of applying torque to the handle 40 by a user is enhanced;

(3) By applying force to the handle 40 to drive the locking rod 20 to rotate or move relative to the through hole 11, the handle 40 is ergonomic, improving the connection efficiency and use experience of the quick-connect lock.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick connect lock, comprising:

the seat body (10) is provided with a through hole (11) which penetrates through the seat body;

the locking rod (20) penetrates through the through hole (11) in a rotatable and axially movable mode, and one end of the locking rod (20) is provided with a locking boss (21) located on the outer side of the through hole (11);

wherein, the lateral wall of locking lever (20) with be provided with guide structure (30) between the pore wall of through-hole (11), guide structure (30) include guide way (31) and stretch into guide post (32) in guide way (31), guide way (31) include first groove section (311) and second groove section (312), first groove section (311) are followed the axial extension of locking lever (20), the one end of second groove section (312) with keeping away from of first groove section (311) the one end of locking boss (21) is linked together, second groove section (312) are followed locking lever (20) circumference extends, guide post (32) set up on pedestal (10) and stretch into in through-hole (11), guide way (31) set up on the lateral wall of locking lever (20), or, guide post (32) set up on the lateral wall of locking lever (20), guide way (31) set up on the through-hole (11).

2. The quick connect lock of claim 1 further comprising a handle (40), wherein said handle (40) is connected to an end of said locking bar (20) distal from said locking boss (21), and said locking boss (21) and said handle (40) are located on both sides of said seat (10) respectively.

3. The quick connect lock of claim 2 further comprising a rotational feedback feature (50), said rotational feedback feature (50) being disposed between said handle (40) and said seat (10).

4. The quick connect lock of claim 3, wherein the seat (10) comprises a seat body (12) and a first cylinder (13) connected to the seat body (12), the handle (40) is sleeved on the first cylinder (13), the lock rod (20) is inserted into the first cylinder (13), and the rotation feedback structure (50) is disposed between an inner wall of the handle (40) and an outer side wall of the first cylinder (13).

5. The quick connect lock of claim 4 wherein said rotational feedback mechanism (50) comprises:

a plurality of feedback teeth (51) arranged on the outer side wall of the first cylinder (13) at intervals along the circumferential direction of the first cylinder (13);

the button (52) is rotatably arranged on the handle (40), a first end of the button (52) extends into the handle (40), a second end of the button (52) is positioned on the outer side of the handle (40), and a feedback boss (521) meshed with the feedback tooth (51) is arranged at the first end of the button (52);

a button reset (53) disposed between the button (52) and the handle (40).

6. The quick connect lock according to claim 2, characterized in that, the quick connect lock further comprises a return spring (60), the base (10) comprises a base body (12) and a first cylinder (13) connected with the base body (12), the handle (40) is sleeved on the first cylinder (13), the lock rod (20) is arranged through the first cylinder (13), the return spring (60) is arranged in the first cylinder (13) and sleeved on the lock rod (20), and two ends of the return spring (60) are respectively abutted against the first cylinder (13) and the handle (40).

7. The quick connect lock according to claim 2, wherein the seat (10) comprises a seat body (12), a first cylinder (13) and a second cylinder (14), the first cylinder (13) and the second cylinder (14) are respectively connected to two sides of the seat body (12), the lock rod (20) is inserted into the first cylinder (13), the seat body (12) and the second cylinder (14), and the outer side wall of the lock rod (20) is in clearance fit with the inner side wall of the second cylinder (14).

8. The quick connect lock of any one of claims 1 to 7,

the length of the second groove section (312) is equal to one fourth of the perimeter of the outer contour of the cross section of the lock rod (20); and/or the presence of a gas in the gas,

the first groove section (311) is perpendicular to the second groove section (312).

9. The quick connect lock of any one of claims 1 to 7,

the guide structure (30) comprises two guide grooves (31) and two guide columns (32) which are correspondingly arranged, the two guide grooves (31) are arranged at intervals along the circumferential direction of the lock rod (20), first groove sections (311) of the two guide grooves (31) are parallel to each other, and the extending directions of second groove sections (312) of the two guide grooves (31) are the same; and/or the presence of a gas in the gas,

the guide post (32) comprises a fastening piece (321), one end of the fastening piece (321) is in threaded connection with the seat body (10), and the other end of the fastening piece (321) extends into the guide groove (31); and/or the presence of a gas in the gas,

and a positioning column (15) is arranged on one side of the base body (10) close to the locking boss (21).

10. An LED display screen, characterized in that, LED display screen includes:

at least two display units;

the quick connection lock is arranged between two adjacent display units, a lock hole is formed in one of the two adjacent display units, the quick connection lock is arranged on the other of the two adjacent display units, a locking boss (21) of the quick connection lock has a locking state connected with the lock hole and an unlocking state separated from the lock hole, and the quick connection lock is as defined in any one of claims 1 to 9.