CN211654171U

CN211654171U - Lock mechanism and display screen with same

Info

Publication number: CN211654171U
Application number: CN201922229670.1U
Authority: CN
Inventors: 李炳锋; 袁天浩
Original assignee: Shenzhen Leyard Optoelectronic Co Ltd
Current assignee: Shenzhen Leyard Optoelectronic Co Ltd
Priority date: 2019-12-11
Filing date: 2019-12-11
Publication date: 2020-10-09
Anticipated expiration: 2029-12-11

Abstract

The utility model provides a lock mechanism and have its display screen, wherein, the lock mechanism includes lock body, first lockpin subassembly and second lockpin subassembly, the first lockpin subassembly sets up on first installation body, the first lockpin subassembly has the locking position with the lock body locking and the unblock position with lock body unblock; the mounting base of the second lock pin component is fixedly connected with the second mounting body, the mounting base is rotatably connected with the lock body, the second lock pin mechanism of the second lock pin component is connected with the mounting base, and the second lock pin component is provided with a locking position for locking the lock body and an adjusting position which is in a free rotation state relative to the lock body. The utility model provides a tool to lock mechanism among the prior art's structure complicated, can't guarantee two adjacent braced frame's connection stability, and be not convenient for adjust two adjacent braced frame's installation angle, increased the problem of the adjustment degree of difficulty of the radian of the apparent image plane of LED display screen.

Description

Lock mechanism and display screen with same

Technical Field

The utility model relates to a display screen technical field particularly, relates to a tool to lock mechanism's of display screen institutional advancement.

Background

The LED display screen is a display device for displaying information such as characters, images, videos, video signals and the like, and is widely applied to places such as markets, high-speed rails, subways, cinemas, exhibitions, office buildings and the like because the LED display screen can be freely extended, seamless splicing is realized, the operation time is long, an interaction technology can be applied, and the display effect is good.

LED display screen is formed by a plurality of display screen module concatenation usually, each display screen module all includes braced frame and the lamp plate module of setting on braced frame, in order to improve the video display effect of LED display screen, be provided with tool to lock mechanism between two adjacent braced frames usually, a radian for adjusting the image plane that shows of LED display screen, current tool to lock mechanism's structure is complicated, can't guarantee two adjacent braced frame's connection stability, and be not convenient for adjust two adjacent braced frame's installation angle, the adjustment degree of difficulty of the radian that shows the image plane of LED display screen has been increased.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a tool to lock mechanism and have its display screen to the structure of solving the tool to lock mechanism among the prior art is complicated, can't guarantee two adjacent braced frame's connection stability, and is not convenient for adjust two adjacent braced frame's installation angle, has increased the problem of the adjustment degree of difficulty of the radian that shows the image plane of LED display screen.

In order to achieve the above object, according to one aspect of the present invention, there is provided a lock mechanism comprising a lock body, a first lock pin assembly and a second lock pin assembly, wherein the first lock pin assembly is configured to be disposed on a first mounting body, the first lock pin assembly having a locked position locked with the lock body and an unlocked position unlocked with the lock body; the second lock pin assembly comprises a mounting base and a second lock pin mechanism, wherein the mounting base is used for being fixedly connected with the second mounting body, the mounting base is rotatably connected with the lock body, the second lock pin mechanism is connected with the mounting base, and the second lock pin assembly is provided with a locking position for locking the lock body and an adjusting position which is in a free rotation state relative to the lock body; when the first lock pin assembly is located at the locking position and the second lock pin assembly is located at the adjusting position, the second installation body drives the second lock pin assembly to rotate relative to the lock body so as to adjust an installation included angle between the second installation body and the first installation body.

Further, the first locking pin assembly comprises a fixing base, a locking element and a first locking pin, wherein the fixing base is used for being fixedly connected with the first mounting body, and the fixing base is provided with an assembling hole; the locking element is adjustably arranged on the fixed base along the axial position of the assembling hole, and an avoiding through hole is formed in the locking element; the first lock pin penetrates through the avoiding through hole and the assembling hole, and the two ends of the first lock pin are respectively provided with a clamping end and a locking end, wherein the clamping end is used for clamping and matching with the lock body, and the locking end is used for resisting and matching with the locking element; the locking element pushes against the locking end to enable the clamping end to be clamped with the lock body, and the first locking pin component is switched to the locking position.

Further, first latch includes telescopic link, joint arm and backstop board, and wherein, the joint arm sets up the one end that is close to the lock body at the telescopic link to form the joint end, the backstop board sets up the one end of keeping away from the lock body at the telescopic link, in order to form the locking end.

Furthermore, a clamping hole is formed in the lock body, and the clamping arm penetrates through the clamping hole and then rotates along with the telescopic rod to be clamped at the edge of the clamping hole.

Furthermore, the joint arm is arranged on the telescopic rod along the radial direction of the telescopic rod in a detachable mode, and an arc-shaped limiting groove used for being matched with the stop of the joint arm is formed in the wall face, located at the joint hole, of the lock body.

Further, the first lock pin assembly further comprises a first return spring, the first return spring is sleeved on the telescopic rod and is abutted against the locking element and the stop plate so as to provide restoring force for the first lock pin to move towards one side far away from the lock body.

Furthermore, the locking element comprises an installation barrel, an external thread end head and an operating handle, wherein the external thread end head is arranged at one axial end of the installation barrel, the external thread end head is used for being matched with a thread structure in the assembling hole, and the operating handle is connected with the outer wall surface of the installation barrel.

Furthermore, an arc-shaped limiting hole is formed in the lock body, an arc-shaped boss extending into the arc-shaped limiting hole is arranged on the mounting base in a protruding mode, and when the second lock pin assembly is located at the adjusting position, the second lock pin assembly rotates relative to the lock body along the direction of the arc-shaped limiting hole along with the second mounting body.

Further, the lock body covers and establishes the outside of installing at the mounting base, wherein, still seted up the arc on the lock body and kept away the hole, and second lockpin mechanism includes guide bar and retaining member, and the first end of guide bar is connected with the mounting base and passes the arc and keep away the hole setting, and retaining member slidable ground cover is established on the guide bar to dodge the outer wall of hole department with the arc of the one side of lock body that deviates from the mounting base and support the press fit, so that second lockpin subassembly and lock body are locked.

Furthermore, a through hole opposite to the arc avoiding hole is formed in the mounting base, and the second lock pin mechanism further comprises a connecting pin which is connected with the guide rod and matched with the mounting base in a stopping mode at the position of the through hole.

Furtherly, the mounting base keep away the hole with the arc and seted up the spacing groove on the surface relatively, the via hole is seted up on the tank bottom surface of spacing groove, the retaining member is including supporting pressure disk and spacing boss, supports the pressure disk and has and support press fit's the surface of pressing with the lock body, spacing boss sets up and stretches into the spacing inslot after supporting on pressing the surface and passing the arc and keep away the hole.

Furthermore, the cross section of the limiting groove and the cross section of the limiting boss are polygons matched with each other.

Furthermore, the second locking pin mechanism further comprises a driving pressing piece, the driving pressing piece is in pivot connection with the second end of the guide rod, and the driving pressing piece is provided with a pressing driving boss in contact fit with the locking piece.

Furthermore, the second end of the guide rod is provided with a first pivot hole, the driving pressing piece is provided with a second pivot hole, and the second lock pin mechanism further comprises a pivot shaft which sequentially penetrates through the first pivot hole and the second pivot hole to be connected with the guide rod and the driving pressing piece.

Further, the second latch mechanism further includes a second return spring provided between the driving pressing piece and the locking piece to provide an elastic force to the locking piece to move toward the side of the mounting base.

Further, the second lockpin subassembly still includes the limiting plate, and the limiting plate passes through fastener and arc boss detachably connected.

According to the utility model discloses an on the other hand provides a display screen, including the display screen module of a plurality of concatenation installations, each display screen module includes braced frame and the lamp plate module of setting on braced frame, and wherein, two adjacent braced frame pass through tool to lock mechanism pivotal connection to the radian of the apparent image plane of adjustment display screen, tool to lock mechanism is foretell tool to lock mechanism, and two adjacent braced frame are first installation body and second installation body respectively.

Use the technical scheme of the utility model, a have locking function and angle modulation function's tool to lock mechanism concurrently is provided to use it on the display screen, when guaranteeing two adjacent braced frame's of display screen connection stability, the image display face that has still guaranteed the display screen can adjust predetermined radian, thereby promotes viewer's the experience of vwatching and feels good.

Specifically, a first lock pin component of the lock mechanism is arranged on a first installation body, and meanwhile, an installation base of a second lock pin component is fixedly connected with a second installation body; after the installation contained angle between the first installation body of having adjusted the display screen and the second installation body, operating personnel only need switch over the second lockpin subassembly by adjusting position to the locking position with lock body locking, and first lockpin subassembly is in the locking position with the lock body locking, ensure the connection stability of the first installation body and the second installation body of display screen, avoid the display screen to appear in the course of the work because of the display screen adjacent first installation body and the second installation body be connected unstable and influence the video picture effect on the video display face of display screen, be favorable to promoting viewer's the good sense of experience of vwatching.

It should be noted that, in the present application, the first mounting body and the second mounting body are both support frames of the display screen.

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 illustrating two adjacent supporting frames of a display screen in a splicing state according to an alternative embodiment of the present invention;

FIG. 2 shows an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic structural view of the two support frames of FIG. 1 in a first installed condition;

FIG. 4 is a schematic structural view of the two support frames of FIG. 1 in a second installed condition;

FIG. 5 shows a schematic structural view of a support frame of the display screen of FIG. 1;

FIG. 6 shows an enlarged schematic view at B in FIG. 5;

FIG. 7 shows an enlarged schematic view at C in FIG. 5;

FIG. 8 is an exploded schematic view of a first latch assembly of the latch mechanism of the display screen of FIG. 6;

FIG. 9 is an exploded schematic view of the second locking pin assembly, lock body, limit plate, and fastener of the latch mechanism of the display screen of FIG. 7;

figure 10 shows a schematic structural view of the lock body of figure 9;

FIG. 11 shows a schematic view of the retaining member of FIG. 9;

fig. 12 shows a schematic view of the bottom view of the retaining member of fig. 11.

Wherein the figures include the following reference numerals:

1. a first mounting body; 2. a second mounting body; 10. a lock body; 11. a clamping hole; 12. an arc-shaped limiting groove; 13. an arc-shaped limiting hole; 14. an arc avoidance hole; 15. a screw; 20. a first locking pin assembly; 21. a fixed base; 211. an assembly hole; 2111. a thread structure; 22. a locking element; 221. avoiding a via hole; 222. installing a cylinder body; 223. an external thread end; 224. an operating handle; 23. a first lock pin; 231. a telescopic rod; 232. a clamping arm; 233. a stopper plate; 24. a first return spring; 30. a second locking pin assembly; 31. mounting a base; 311. an arc-shaped boss; 312. a via hole; 313. a limiting groove; 32. a second latch mechanism; 321. a guide bar; 3211. a first pivot hole; 322. a locking member; 3221. pressing the disc; 3222. a limiting boss; 3223. an installation section; 3224. a rotation stopping section; 323. connecting pins; 324. driving the pressing member; 3241. the driving boss is pressed; 3242. a second pivot hole; 325. a pivot shaft; 326. a second return spring; 33. a limiting plate; 34. a fastener; 100. against the surface.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In order to solve the structure complicacy of tool to lock mechanism among the prior art, can't guarantee two adjacent braced frame's connection stability, and be not convenient for adjust two adjacent braced frame's installation angle, increased the problem of the adjustment degree of difficulty of the radian of the image plane of LED display screen, the utility model provides a tool to lock mechanism and have its display screen, wherein, as shown in fig. 1 to 4, the display screen includes the display screen module of a plurality of concatenation installations, each display screen module includes braced frame and the lamp plate module of setting on braced frame, two adjacent braced frame pass through tool to lock mechanism pivotal connection to adjust the radian of the image plane of display screen, tool to lock mechanism be above-mentioned and following tool to lock mechanism, two adjacent braced frame are first installation body 1 and second installation body 2 respectively.

It should be noted that, in this application, in order to ensure that the adjacent first installation body 1 and second installation body 2 of each display screen module can be pivotally connected through the lock mechanism, as shown in fig. 1, a second lock pin assembly 30 is disposed at a relative position where the first lock pin assembly 20 is disposed on the first installation body 1, and meanwhile, a first lock pin assembly 20 is disposed at a relative position where the second installation body 2 is disposed at the second lock pin assembly 30, considering that the display screen includes a plurality of display screen modules installed in a spliced manner, and each display screen module includes a support frame and a lamp panel module disposed on the support frame.

As shown in fig. 1 and 2, the lock mechanism includes a lock body 10, a first lock pin assembly 20 and a second lock pin assembly 30, wherein the first lock pin assembly 20 is configured to be disposed on a first mounting body 1, the first lock pin assembly 20 has a locked position locked with the lock body 10 and an unlocked position unlocked with the lock body 10; the second lock pin assembly 30 comprises a mounting base 31 and a second lock pin mechanism 32, wherein the mounting base 31 is used for being fixedly connected with the second mounting body 2, the mounting base 31 is rotatably connected with the lock body 10, the second lock pin mechanism 32 is connected with the mounting base 31, and the second lock pin assembly 30 has a locking position for being locked with the lock body 10 and an adjusting position in a free rotation state relative to the lock body 10; when the first lock pin assembly 20 is in the locking position and the second lock pin assembly 30 is in the adjusting position, the second mounting body 2 drives the second lock pin assembly 30 to rotate relative to the lock body 10, so as to adjust the mounting included angle between the second mounting body 2 and the first mounting body 1.

The application provides a have locking function and angle modulation function's tool to lock mechanism concurrently to use it on the display screen, when guaranteeing two adjacent braced frame's of display screen connection stability, the image plane that has still guaranteed the display screen can adjust predetermined radian, thereby promotes viewer's the experience of vwatching and feels good.

Specifically, a first lock pin assembly 20 of the lock mechanism is provided on the first mounting body 1, while fixedly connecting the mounting base 31 of the second latch assembly 30 with the second mounting body 2, since the mounting base 31 is rotatably coupled to the lock body 10 and the second detent mechanism 32 of the second detent assembly 30 is coupled to the mounting base 31, in this way, when the installation included angle between the first installation body 1 and the second installation body 2 of the display screen needs to be adjusted, the operator simply adjusts the first locking pin assembly 20 to the locked position, and the second locking pin assembly 30 to the adjusted position, thereby ensuring that the second mounting body 2 can bring the second lock pin assembly 30 into rotation relative to the lock body 10, the installation included angle between the first installation body 1 and the second installation body 2 of the display screen is adjusted, and the image display surface of the display screen can be adjusted to a preset radian; after the installation contained angle between the first installation body 1 of having adjusted the display screen and the second installation body 2, operating personnel only need switch over second lockpin subassembly 30 to the locking position with lock body 10 locking by adjusting position, and first lockpin subassembly 20 is in the locking position with lock body 10 locking, ensure the connection stability of the first installation body 1 and the second installation body 2 of display screen, avoid the display screen to appear in the course of the work because of the connection unstability of the adjacent first installation body 1 of display screen and second installation body 2 influences the video image effect of the display screen, be favorable to promoting the good sense of experience of vwatching of viewer.

It should be noted that the first installation body 1 and the second installation body 2 described in the present application are both support frames of the display screen.

In the present application, as shown in fig. 7, the mounting base 31 is mounted to the first mounting body 1 by three screws.

As shown in fig. 5, 6 and 8, the first locking pin assembly 20 includes a fixing base 21, a locking element 22 and a first locking pin 23, wherein the fixing base 21 is used for being fixedly connected with the first mounting body 1, and the fixing base 21 is provided with an assembling hole 211; the locking element 22 is adjustably arranged on the fixed base 21 along the axial position of the assembling hole 211, and an avoiding through hole 221 is formed in the locking element 22; the first lock pin 23 penetrates through the avoiding through hole 221 and the assembling hole 211, and two ends of the first lock pin 23 are respectively a clamping end and a locking end, wherein the clamping end is used for being clamped and matched with the lock body 10, and the locking end is used for being abutted and matched with the locking element 22; the locking element 22 pushes against the locking end to clamp the clamping end with the lock body 10, and the first lock pin assembly 20 is switched to the locking position. In this way, the arrangement of the fixing base 21 ensures the connection stability of the first lock pin assembly 20 and the first installation body 1, and the locking element 22 pushes against the locking end of the first lock pin 23, so that the clamping end of the first lock pin 23 is clamped with the lock body 10, thereby switching the first lock pin assembly 20 from the unlocking position to the locking position, and ensuring the locking reliability of the first lock pin assembly 20 and the lock body 10.

In the present application, as shown in fig. 6, the first latch assembly 20 is fixedly attached to the first mounting body 1 via the fixing base 21.

As shown in fig. 8, the first lock pin 23 includes a telescopic rod 231, a snap arm 232 and a stop plate 233, wherein the snap arm 232 is disposed at an end of the telescopic rod 231 close to the lock body 10 to form a snap end, and the stop plate 233 is disposed at an end of the telescopic rod 231 far from the lock body 10 to form a lock end. In this way, the structure of the first lock pin 23 is ensured to be simple enough, and the locking reliability of the first lock pin assembly 20 and the lock body 10 can also be ensured.

As shown in fig. 8 and 10, the lock body 10 is provided with a clamping hole 11, and the clamping arm 232 passes through the clamping hole 11 and then rotates along with the telescopic rod 231 to be clamped at the edge of the clamping hole 11. In this way, the connection relationship between the first lock pin assembly 20 and the lock body 10 is simplified, and the difficulty in manufacturing the first lock pin assembly 20 and the lock body 10 is reduced while the connection stability of the first lock pin assembly 20 and the lock body 10 is ensured.

As shown in fig. 8 and 10, the snap arm 232 is detachably disposed on the telescopic rod 231 along the radial direction of the telescopic rod 231, and an arc-shaped limiting groove 12 for stopping and matching with the snap arm 232 is formed on the wall surface of the lock body 10 located at the snap hole 11. In this way, after the telescopic rod 231 of the first lock pin 23 sequentially passes through the avoiding via hole 221 and the assembling hole 211, the clamping arm 232 is mounted on the telescopic rod 231 to ensure that the telescopic rod 231 telescopically penetrates through the avoiding via hole 221 and the assembling hole 211, and the clamping arm 232 is arranged along the radial direction of the telescopic rod 231 and can be stopped at the orifice of the avoiding via hole 221, so that the telescopic rod 231 is prevented from falling off from the avoiding via hole 221 and the assembling hole 211 when the first lock pin assembly 20 is in the unlocking position; in addition, the arc-shaped limiting groove 12 is arranged to ensure that the arc-shaped limiting groove 12 is matched with the clamping arm 232, and the arc-shaped limiting groove 12 plays a role in limiting the stop of the clamping arm 232, so that the locking reliability of the first lock pin assembly 20 and the lock body 10 is ensured.

As shown in fig. 8, the first lock pin assembly 20 further includes a first return spring 24, and the first return spring 24 is disposed on the telescopic rod 231 and abuts against the locking element 22 and the stop plate 233 to provide a restoring force for the first lock pin 23 to move toward a side away from the lock body 10. Thus, when the clamping arm 232 of the first lock pin assembly 20 passes through the clamping hole 11 of the lock body 10, rotates with the telescopic rod 231 and is clamped at the edge of the clamping hole 11, the first return spring 24 in a compressed state can provide a force for the first lock pin 23 to move towards the side far away from the lock body 10, so as to provide a pre-tightening force for the clamping end of the first lock pin 23.

As shown in fig. 8, the locking element 22 includes a mounting cylinder 222, a male screw head 223 and an operating handle 224, wherein the male screw head 223 is disposed at one axial end of the mounting cylinder 222, the male screw head 223 is used for matching with the screw structure 2111 in the assembly hole 211, and the operating handle 224 is connected with the outer wall surface of the mounting cylinder 222. In this way, due to the threaded connection between the locking element 22 and the fixed base 21, the stability of the connection between the locking element 22 and the fixed base 21 is ensured, and meanwhile, the relative position between the locking element 22 and the fixed base 21 can be conveniently adjusted by an operator in a screwing mode through the operating handle 224, so that the adjustment convenience of the lock mechanism is improved.

As shown in fig. 9 and 10, an arc-shaped limiting hole 13 is formed in the lock body 10, an arc-shaped boss 311 extending into the arc-shaped limiting hole 13 is protruded from the mounting base 31, and when the second lock pin assembly 30 is located at the adjusting position, the second lock pin assembly 30 rotates with the second mounting body 2 along the direction of the arc-shaped limiting hole 13 relative to the lock body 10. Like this, the spacing hole 13 of arc plays the backstop limiting displacement to arc boss 311, ensures that second lockpin subassembly 30 can rotate predetermined angle for lock body 10 along the direction of the spacing hole 13 of arc along second installation body 2 to the installation contained angle between adjustment second installation body 2 and the first installation body 1.

As shown in fig. 9, the lock body 10 is covered and installed on the outer side of the installation base 31, wherein the lock body 10 is further provided with an arc-shaped avoiding hole 14, the second locking pin mechanism 32 includes a guide rod 321 and a locking member 322, a first end of the guide rod 321 is connected with the installation base 31 and passes through the arc-shaped avoiding hole 14, the locking member 322 is slidably sleeved on the guide rod 321 and is in press fit with an outer wall surface of the arc-shaped avoiding hole 14 on the side of the lock body 10 away from the installation base 31, so that the second locking pin assembly 30 is locked with the lock body 10. Thus, when the second locking pin assembly 30 is switched from the adjusting position to the locking position, the locking member 322 is only required to be pressed against the outer wall surface of the arc-shaped avoiding hole 14 of the lock body 10, so that the second locking pin assembly 30 and the lock body 10 can be locked, and the operation is convenient and fast.

As shown in fig. 9, the mounting base 31 is provided with a through hole 312 opposite to the arc-shaped avoiding hole 14, and the second latch mechanism 32 further includes a connecting pin 323, wherein the connecting pin 323 is connected with the guide rod 321 and is in stop fit with the mounting base 31 at the position of the through hole 312. Thus, the guide rod 321 is firmly connected with the mounting base 31 through the connecting pin 323, and the guide rod 321 is prevented from shaking relative to the mounting base 31, so that the guiding reliability of the guide rod 321 for the locking piece 322 is ensured.

As shown in fig. 9 and 12, a limiting groove 313 is formed on a surface of the mounting base 31 opposite to the arc avoiding hole 14, the via hole 312 is formed on a groove bottom surface of the limiting groove 313, the locking member 322 includes a pressing disc 3221 and a limiting boss 3222, the pressing disc 3221 has a pressing surface 100 in pressing fit with the lock body 10, and the limiting boss 3222 is disposed on the pressing surface 100 and extends into the limiting groove 313 after passing through the arc avoiding hole 14. In this way, the limiting groove 313 plays a role in limiting the stop of the limiting boss 3222 of the locking piece 322, and ensures the connection reliability of the second latch mechanism 32 and the mounting base 31, so that when the second mounting body 2 rotates, the mounting base 31 can drive the second latch mechanism 32 to rotate together with the second mounting body 2.

It should be noted that, in the present application, the cross section of the limiting groove 313 and the cross section of the limiting projection 3222 are polygons matched with each other. In this way, the contact area between the two is increased, and it is ensured that the mounting base 31 can provide a sufficient driving force for the second latch mechanism 32, thereby ensuring that the second latch mechanism 32 can rotate together with the second mounting body 2.

As shown in fig. 9, the second latch mechanism 32 further includes a driving pressing member 324, the driving pressing member 324 is pivotally connected to the second end of the guide rod 321, and the driving pressing member 324 has a pressing driving protrusion 3241 which is in contact engagement with the locking member 322. Like this, when switching second lockpin subassembly 30 to the locking position from the regulation position, operating personnel only need press drive pressing piece 324 for the drive boss 3241 that supports of drive pressing piece 324 contacts with retaining member 322, ensures that the surface 100 that supports of retaining member 322 and the outer wall face of the arc department of dodging of lock body 10 department of dodging support the press fit, thereby locks second lockpin subassembly 30 and lock body 10, has promoted locking mechanism's operation convenience.

As shown in fig. 9, the second end of the guide rod 321 has a first pivot hole 3211, the driving pressing member 324 has a second pivot hole 3242, and the second latch mechanism 32 further includes a pivot shaft 325, and the pivot shaft 325 sequentially passes through the first pivot hole 3211 and the second pivot hole 3242 to connect the guide rod 321 and the driving pressing member 324. In this way, it is ensured that the guide rod 321 and the driving pressing piece 324 are pivotally connected by the pivot shaft 325, facilitating the operator to switch the position of the second locking pin assembly 30 in a manner of rotating the driving pressing piece 324.

As shown in fig. 9, the second latch mechanism 32 further includes a second return spring 326, and the second return spring 326 is disposed between the driving pressure piece 324 and the locking member 322 to provide an elastic force for the locking member 322 to move toward the side of the mounting base 31. In this way, it is ensured that the retaining protrusions 3222 of the retaining member 322 can be always positioned in the retaining grooves 313 of the mounting base 31, thereby preventing the second latch mechanism 32 from moving relative to the mounting base 31 in the direction of the arc-shaped retaining holes 13.

It should be noted that, in the present application, in order to ensure that the arc-shaped boss 311 can be always located in the arc-shaped limiting hole 13, as shown in fig. 9, the second lock pin assembly 30 further includes a limiting plate 33, and the limiting plate 33 is detachably connected to the arc-shaped boss 311 through a fastener 34. In this way, the connection reliability of the mounting base 31 and the lock body 10 is ensured, and when the mounting base 31 rotates relative to the lock body 10, the arc-shaped boss 311 of the mounting base 31 is prevented from falling from the arc-shaped limiting hole 13.

As shown in fig. 11 and 12, the locking member 322 has a through hole structure, and the through hole structure includes a mounting section 3223 and a rotation stopping section 3224, which are communicated with each other, wherein the mounting section 3223 is used for mounting the second return spring 326, and the rotation stopping section 3224 is used for preventing the guide rod 321 from rotating.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

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 lock mechanism, comprising:

a lock body (10);

a first lock pin assembly (20) for being arranged on a first mounting body (1), the first lock pin assembly (20) having a locked position locked with the lock body (10) and an unlocked position unlocked with the lock body (10);

a second locking pin assembly (30), wherein the second locking pin assembly (30) comprises a mounting base (31) and a second locking pin mechanism (32), wherein the mounting base (31) is used for being fixedly connected with a second mounting body (2), the mounting base (31) is rotatably connected with the lock body (10), the second locking pin mechanism (32) is connected with the mounting base (31), and the second locking pin assembly (30) has a locking position for being locked with the lock body (10) and an adjusting position which is in a free rotation state relative to the lock body (10);

when the first lock pin assembly (20) is in a locking position and the second lock pin assembly (30) is in an adjusting position, the second mounting body (2) drives the second lock pin assembly (30) to rotate relative to the lock body (10) so as to adjust a mounting included angle between the second mounting body (2) and the first mounting body (1).

2. The lock mechanism as claimed in claim 1, wherein the first lock pin assembly (20) comprises:

the fixing base (21) is used for being fixedly connected with the first mounting body (1), and an assembling hole (211) is formed in the fixing base (21);

the locking element (22) is adjustably arranged on the fixed base (21) along the axial position of the assembling hole (211), and an avoiding through hole (221) is formed in the locking element (22);

the first lock pin (23) penetrates through the avoiding through hole (221) and the assembling hole (211), and two ends of the first lock pin (23) are respectively a clamping end and a locking end, wherein the clamping end is used for being clamped and matched with the lock body (10), and the locking end is used for being abutted and matched with the locking element (22);

the locking element (22) pushes against the locking end to enable the clamping end to be clamped with the lock body (10), and the first lock pin assembly (20) is switched to the locking position.

3. The lock mechanism according to claim 2, characterized in that the first locking pin (23) comprises a telescopic rod (231), a snap arm (232) and a stop plate (233), wherein the snap arm (232) is arranged at an end of the telescopic rod (231) close to the lock body (10) to form the snap end, and the stop plate (233) is arranged at an end of the telescopic rod (231) remote from the lock body (10) to form the locking end.

4. The lock mechanism as claimed in claim 3, wherein the lock body (10) has a locking hole (11), and the locking arm (232) passes through the locking hole (11) and then rotates with the telescopic rod (231) to lock at the edge of the locking hole (11).

5. The lock mechanism according to claim 4, wherein the locking arm (232) is detachably disposed on the telescopic rod (231) along a radial direction of the telescopic rod (231), and an arc-shaped limiting groove (12) for stopping and matching with the locking arm (232) is formed on a wall surface of the lock body (10) at the locking hole (11).

6. The lock mechanism as claimed in claim 3, wherein the first lock pin assembly (20) further comprises a first return spring (24), the first return spring (24) being fitted over the telescopic rod (231) and abutting the locking element (22) and the stop plate (233) to provide a return force for the first lock pin (23) to move towards the side away from the lock body (10).

7. The lock mechanism according to claim 2, wherein the locking element (22) comprises a mounting cylinder (222), an externally threaded stub (223) and an operating lever (224), wherein the externally threaded stub (223) is arranged at one axial end of the mounting cylinder (222), the externally threaded stub (223) is adapted to cooperate with a threaded structure (2111) in the mounting hole (211), and the operating lever (224) is connected with an outer wall surface of the mounting cylinder (222).

8. The lock mechanism as claimed in claim 1, wherein an arc-shaped limiting hole (13) is formed in the lock body (10), an arc-shaped boss (311) extending into the arc-shaped limiting hole (13) is protrudingly provided on the mounting base (31), and when the second lock pin assembly (30) is in the adjustment position, the second lock pin assembly (30) rotates with the second mounting body (2) relative to the lock body (10) along the direction of the arc-shaped limiting hole (13).

9. The lock mechanism according to claim 8, wherein the lock body (10) is covered and installed on the outer side of the installation base (31), wherein an arc-shaped avoiding hole (14) is further formed in the lock body (10), the second locking pin mechanism (32) comprises a guide rod (321) and a locking member (322), the first end of the guide rod (321) is connected with the installation base (31) and penetrates through the arc-shaped avoiding hole (14) to be arranged, the locking member (322) is slidably sleeved on the guide rod (321) and is in abutting press fit with the outer wall surface of the lock body (10) deviating from the arc-shaped avoiding hole (14) on one side of the installation base (31), so that the second locking pin assembly (30) is locked with the lock body (10).

10. The lock mechanism according to claim 9, wherein the mounting base (31) is provided with a through hole (312) opposite to the arc-shaped avoiding hole (14), and the second latch mechanism (32) further comprises a connecting pin (323), wherein the connecting pin (323) is connected with the guide rod (321) and is in stop fit with the mounting base (31) at the position of the through hole (312).

11. The lock mechanism according to claim 10, wherein a limiting groove (313) is formed in a surface of the mounting base (31) opposite to the arc avoiding hole (14), the via hole (312) is formed in a groove bottom surface of the limiting groove (313), the locking member (322) comprises a pressing plate (3221) and a limiting boss (3222), the pressing plate (3221) has a pressing surface (100) in pressing fit with the lock body (10), and the limiting boss (3222) is arranged on the pressing surface (100) and penetrates through the arc avoiding hole (14) and then extends into the limiting groove (313).

12. The lock mechanism as claimed in claim 11, wherein the cross-section of the retaining groove (313) and the cross-section of the retaining protrusion (3222) are adapted polygons.

13. The lock mechanism as claimed in claim 9, characterized in that the second detent mechanism (32) further comprises an actuation pressure piece (324), the actuation pressure piece (324) being pivotally connected to the second end of the guide rod (321), the actuation pressure piece (324) having a press-against actuation boss (3241) for contact engagement with the locking member (322).

14. The lock mechanism as claimed in claim 13, wherein the second end of the guide rod (321) has a first pivot hole (3211), the driving pressing piece (324) has a second pivot hole (3242), and the second latch mechanism (32) further comprises a pivot shaft (325), the pivot shaft (325) is sequentially disposed through the first pivot hole (3211) and the second pivot hole (3242) to connect the guide rod (321) and the driving pressing piece (324).

15. The lock mechanism according to claim 13, wherein the second detent mechanism (32) further comprises a second return spring (326), the second return spring (326) being disposed between the driven pressing piece (324) and the lock member (322) to provide the lock member (322) with a resilient force moving toward the side of the mounting base (31).

16. The lock mechanism as claimed in claim 8, wherein the second lock pin assembly (30) further comprises a retainer plate (33), the retainer plate (33) being removably connected to the arcuate boss (311) by a fastener (34).

17. The utility model provides a display screen, its characterized in that, includes the display screen module of a plurality of concatenation installations, each display screen module includes braced frame and sets up lamp plate module on the braced frame, wherein, adjacent two braced frame passes through tool to lock mechanism pivotal connection to the adjustment the radian in display image plane of display screen, tool to lock mechanism be any one of claims 1 to 16 tool to lock mechanism, adjacent two braced frame is first installation body (1) and second installation body (2) respectively.