WO2021217766A1

WO2021217766A1 - Lock rod member, lock body, lock assembly and display screen

Info

Publication number: WO2021217766A1
Application number: PCT/CN2020/092466
Authority: WO
Inventors: 李展强; 陆晨
Original assignee: 深圳市雷迪奥视觉技术有限公司
Priority date: 2020-04-30
Filing date: 2020-05-27
Publication date: 2021-11-04
Also published as: CN111425719A

Abstract

A lock rod member, a lock body, a lock assembly and a display screen. The lock rod member comprises a first positioning sleeve (1), a lock rod (2), a handle (3), a first support rod (4) and a second support rod (5); the lock rod (2) is slidably sleeved in the first positioning sleeve (1), the first support rod (4) is fixed on the first positioning sleeve (1) and hinged to one end of the handle (3), and the second support rod (5) is hinged to the lock rod (2) and the handle (3) respectively. The first support rod (4), the handle (3) and the second support rod (5) form a lever structure. The lock rod member uses the lever principle to enable a force acting on the lock rod (2) to be greater than a force acting on the handle (3) by a user, so that it is labor-saving for the user to push the lock rod (2), and even if the lock rod (2) is slightly misaligned with the lock base, the user can also push out the lock rod (2) easily, allowing for convenient and smooth user operations, and greatly improving the operation experience of the user.

Description

Lock rod, lock body, lock assembly and display screen

Technical field

The invention relates to the technical field of locks, in particular to a lock rod, a lock body, a lock assembly and a display screen.

Background technique

When the existing LED display screen is spliced, it is necessary to use a connection lock to connect multiple screen bodies. In the existing connection lock structure that directly pushes the lock rod to achieve locking, when the user applies force to the lock body lock rod in a direction other than the axial direction of the lock rod, the lock rod cannot be pushed or the lock rod jams. The problem requires the user to use greater force to complete the locking of the connection lock, which is not very convenient for the user to use.

technical problem

The technical problem to be solved by the present invention is to provide a lock rod, a lock body with the lock rod, a lock assembly with the lock body, and a display screen with the lock assembly.

Technical solutions

In order to solve the above technical problems, the first technical solution adopted by the present invention is: a lock rod member, including a first positioning sleeve, a lock rod, a handle, a first support rod, and a second support rod. The lock rod is slidably sleeved on the first support rod. In the positioning sleeve, the first support rod is fixed on the first positioning sleeve and is hinged with one end of the handle, and the second support rod is hinged with the lock rod and the handle respectively.

In order to solve the above-mentioned technical problems, the second technical solution adopted by the present invention is: the lock body includes the above-mentioned lock rod member.

In order to solve the above technical problems, the third technical solution adopted by the present invention is: the lock assembly includes a matching lock body and a lock seat, and the lock body is the above lock body.

In order to solve the above-mentioned technical problems, the fourth technical solution adopted by the present invention is: a display screen, including the above-mentioned lock assembly.

Beneficial effect

The beneficial effect of the present invention is that the first support rod, the handle, and the second support rod form a lever structure. The lock rod uses the principle of leverage to make the force applied to the lock rod greater than the force applied to the handle by the user, so that the user is pushing The lock lever can be more labor-saving. Even if the lock lever and the lock base are slightly misaligned, the user can easily push the lock lever out, which makes the user's operation more convenient and smoother, and greatly improves the user's operating experience.

Description of the drawings

Fig. 1 is a schematic structural diagram of a lock rod according to the first embodiment of the present invention;

Figure 2 is an exploded view of the lock body of the second embodiment/the third embodiment of the present invention;

Figure 3 is an exploded view of the lock body of the second/third embodiment of the present invention;

Figure 4 is a cross-sectional view of the lock body of the second/third embodiment of the present invention;

Figure 5 is a schematic structural view of the second positioning sleeve in the lock body of the second/third embodiment of the present invention;

Fig. 6 is a schematic structural diagram of a lock assembly according to a third embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a lock assembly according to the third embodiment of the present invention;

Figure 8 is an exploded view of the lock seat in the lock assembly of the third embodiment of the present invention;

Figure 9 is an exploded view of the lock seat in the lock assembly of the third embodiment of the present invention;

Figure 10 is a cross-sectional view of the lock base in the lock assembly of the third embodiment of the present invention.

Label description:

1. The first positioning set;

2. Lock rod; 21, U-shaped guide groove;

3. Handle; 31. The first limit slot; 32. The receiving cavity;

4. The first support rod;

5. The second support rod;

61. Guide block; 62. Guide groove;

7. The second positioning sleeve; 71, the fixed part; 72, the socket part; 73, the gap; 74, the boss; 75, the limit post; 76, the locking groove;

8. Avoidance;

9. The first elastic member; 91. The abutting part;

10. Teeth;

11. Locking components;

12. Seat body; 121. The third limit slot; 122. Mounting hole;

13. The second elastic member;

14. Extension piece; 141, second limiting groove; 142, first guiding surface; 143, second guiding surface;

15. Limit rod.

Embodiments of the present invention

In order to describe in detail the technical content, the achieved objectives and effects of the present invention, the following description will be given in conjunction with the embodiments and the accompanying drawings.

Please refer to Figures 1 to 10, a lock rod member, including a first positioning sleeve 1, a lock rod 2, a handle 3, a first support rod 4 and a second support rod 5, the lock rod 2 is slidably sleeved in the first positioning In the sleeve 1, the first support rod 4 is fixed on the first positioning sleeve 1 and is hinged with one end of the handle 3, and the second support rod 5 is hinged with the lock rod 2 and the handle 3, respectively.

It can be seen from the above description that the beneficial effects of the present invention are: the first support rod 4, the handle 3, and the second support rod 5 form a lever structure. The force on the handle 3 allows the user to save effort when pushing the lock lever 2. Even if the lock lever 2 and the lock base are slightly misaligned, the user can easily push the lock lever 2 out, making the user's operation more convenient and smoother. , Which greatly enhances the user's operating experience.

Further, the distance from the hinged joint between the second support rod 5 and the lock rod 2 to the first support rod 4 is smaller than the distance from the hinged joint between the second support rod 5 and the handle 3 to the first support rod 4.

It can be seen from the above description that the lock rod works stably, moves smoothly, and does not jam.

Furthermore, the handle 3 is provided with a receiving cavity 32 for receiving the end of the lock rod 2.

It can be seen from the above description that the accommodating cavity 32 can protect the lock rod 2 and at the same time can make the appearance of the lock rod more concise.

Furthermore, the handle 3 is provided with a first limiting slot 31, and one end of the second support rod 5 is located in the first limiting slot 31.

It can be seen from the above description that the first limiting slot 31 is used to limit the rotation angle and the swing amplitude of the second support rod 5, which is beneficial to ensure the working stability of the lock rod.

Further, the first support rod 4 and the first positioning sleeve 1 are integrally formed, or the first support rod 4 and the first positioning sleeve 1 are detachably connected.

It can be seen from the above description that the first support rod 4 can be arranged in a variety of ways, which is beneficial to enhance the diversity of the lock rods.

Further, the lock rod 2 is provided with a guide block 61, and the first positioning sleeve 1 is provided with a guide groove 62 that matches the guide block 61; or, the lock rod 2 is provided with a guide groove 62, and the first positioning sleeve 1 is provided with a guide groove 62. A guide block 61 matched with the guide groove 62 is provided.

It can be seen from the above description that the cooperation of the guide block 61 and the guide groove 62 enables the lock rod 2 to slide more smoothly in the first positioning sleeve 1.

The lock body includes the above-mentioned lock rod.

It can be seen from the above description that the lock body with the above lock lever is convenient for users to operate.

Further, it also includes a second positioning sleeve 7, and the first positioning sleeve 1 is rotatably sleeved in the second positioning sleeve 7.

It can be seen from the above description that the second positioning sleeve 7 is used to connect with external components. The lock rod 2 is rotatable relative to the second positioning sleeve 7.

Further, the second positioning sleeve 7 includes a fixed portion 71 and a sleeve portion 72 connected to each other. The sleeve portion 72 is provided with a notch 73, and the first support rod 4 is located in the notch 73.

It can be seen from the above description that the notch 73 can play a role in avoiding the first support rod 4, and at the same time, can also play a role in limiting the angle range of the first positioning sleeve 1 that can be rotated.

Further, a boss 74 is provided on the fixing portion 71, the boss 74 is located in the notch 73, the height of the boss 74 gradually increases from one end to the other end, and the end of the first support rod 4 away from the handle 3 abuts against the boss 74 The top surface.

It can be seen from the above description that the arrangement of the boss 74 can play a pre-tightening effect, so that the lock rod 2 can be more closely connected with the lock base when locked, thereby improving the stability of the connection between the lock body and the lock base.

Further, the second positioning sleeve 7 is provided with a first elastic member 9, one end of the first elastic member 9 is provided with an abutting portion 91, and the outer peripheral wall of the first positioning sleeve 1 is provided with a rack, and the abutting portion 91 abuts Lean on the rack.

It can be seen from the above description that when the first positioning sleeve 1 rotates, the abutting portion 91 will abut the teeth 10 in the rack one by one, thereby making a sound, acting as an operation prompt, and helping the user to estimate the first positioning. The angle of rotation of the sleeve 1 not only effectively improves the mechanical feel of the lock body, but also allows the user to more easily control the working condition of the lock body.

Furthermore, the second positioning sleeve 7 is provided with a mounting post for fixing the first elastic member 9.

It can be seen from the above description that the first elastic member 9 is easy to install.

Further, a U-shaped guide groove 21 is provided on the lock rod 2, and a limit post 75 that matches the U-shaped guide groove 21 is provided on the second positioning sleeve 7.

It can be seen from the above description that the locking/unlocking action of the lock lever 2 is simple, and the user's operation is simple. The cooperation of the U-shaped guide groove 21 and the limit post 75 is matched with the first positioning sleeve 1 and the boss 74 so that the lock body and the lock seat can be completely locked when they are locked, which effectively improves the lock body and the lock seat. The stability of the connection. It should be noted that if only the locking of the lock body and the lock seat is required, regardless of whether it can be completely locked, the matching structure of the U-shaped guide groove 21 and the limit post 75 and the first positioning sleeve 1 and the boss 74 Choose one of the two to match the structure.

Furthermore, the second positioning sleeve 7 is provided with at least two locking grooves 76, and the handle 3 is provided with a locking assembly 11 that cooperates with the locking grooves 76.

It can be seen from the above description that the cooperation of the locking assembly 11 and the locking groove 76 can prevent the first positioning sleeve 1/lock rod 2 from rotating unexpectedly with respect to the second positioning sleeve 7, which is beneficial to ensure the working stability of the lock body.

Further, the locking assembly 11 includes a reset elastic member and a locking member rotatably arranged on the handle 3, one end of the locking member has a button exposed on the handle 3, and the other end of the locking member is provided with a locking groove 76 to cooperate with. The locking lever, the reset elastic member connects the locking member and the handle 3.

It can be seen from the above description that the locking assembly 11 has a simple structure, easy processing, low manufacturing cost, and good working stability.

The lock assembly includes a matched lock body and a lock base, and the lock body is the above lock body.

It can be seen from the above description that the lock assembly has simple structure, easy operation and good working stability.

Further, the lock seat includes a seat body 12, a second elastic member 13 and a protruding member 14 slidingly sleeved in the seat body 12. The second elastic member 13 connects the seat body 12 and the protruding member 14, on the protruding member 14 A lock hole matched with the lock lever 2 is provided.

It can be seen from the above description that when there is a locking gap between the lock body and the lock base, the lock rod 2 will pull the extension piece 14 so that the extension piece 14 extends into the adjacent side frame where the lock body is installed for the lock rod 2 to enter and exit. In this way, the two adjacent frames can be aligned accurately during splicing and locking, so that one-time locking can be realized, and the misalignment between the frames during locking can be avoided, and the accuracy of locking can be improved.

Further, a limit rod 15 is provided on the seat body 12, a second limit groove 141 is provided on the extension member 14 along the sliding direction thereof, and one end of the limit rod 15 is located in the second limit groove 141.

It can be seen from the above description that the cooperation of the limiting rod 15 and the second limiting groove 141 can limit the maximum sliding stroke of the extension member 14, which is beneficial to improve the structural stability and working stability of the lock base.

Furthermore, a first guide surface 142 for guiding the lock rod 2 is provided on the inner side of one end of the extension member 14 close to the lock body.

It can be seen from the above description that the arrangement of the first guide surface 142 enables the lock rod 2 to extend into the extension member 14 more smoothly.

Further, a second guide surface 143 is provided on the outer edge of one end of the extension member 14 close to the lock body.

It can be seen from the above description that the second guide surface 143 is arranged to facilitate a part of the extension member 14 to extend into the access hole on the adjacent side frame where the lock body is installed for the lock rod 2 to enter and exit.

The display screen includes the above-mentioned lock assembly.

It can be seen from the above description that the display screen is easy to assemble and has good structural stability.

Example one

Please refer to Figure 1, the first embodiment of the present invention is: a lock rod member, which can be used in a lock assembly, which includes a first positioning sleeve 1, a lock rod 2, a handle 3, a first support rod 4, and a second support rod 5. The lock rod 2 is slidably sleeved in the first positioning sleeve 1, the first support rod 4 is fixed on the first positioning sleeve 1 and is hinged with one end of the handle 3, and the second support rod 5 is respectively connected to the lock rod 2 and the handle 3 Hingedly, the end of the lock rod 2 away from the second support rod 5 is provided with a lock head.

The movement of the lock rod in the prior art is a linear movement along its axial direction, and the direction of applying force is the same as the direction of its movement, and there is a problem that it cannot be pushed or jammed if the force is not enough. However, the lock rod of this embodiment is essentially a lever structure, the handle 3 is set to turn around the first support rod 4, and its length is the length of the first power arm, and the second support rod 5 is connected to the handle 3 close to The position of the first support rod 4, the length from the connection between the second support rod 5 and the handle 3 to the connection between the handle 3 and the first support rod 4 is the length of the second power arm, and the length of the first power arm is greater than that of the first power arm. For the length of the second power arm, the user can apply a relatively small force on the handle 3 to form a relatively large force on the second support rod 5 and then push the lock rod 2. Therefore, compared with the prior art, the above lock rod can make The lock lever 2 can save effort when being pushed.

The distance from the hinge joint between the second support rod 5 and the lock rod 2 to the first support rod 4 is smaller than the distance from the hinge joint between the second support rod 5 and the handle 3 to the first support rod 4.

Preferably, the handle 3 is provided with a receiving cavity for receiving the end of the lock rod 2.

The handle 3 is provided with a first limit slot, and one end of the second support rod 5 is located in the first limit slot, so that the maximum rotation range of the second support rod 5 can be limited, thereby ensuring the working stability of the lock rod .

The first support rod 4 and the first positioning sleeve 1 are integrally formed, or the first support rod 4 and the first positioning sleeve 1 are detachably connected.

The lock rod 2 is provided with a guide block, and the first positioning sleeve 1 is provided with a guide groove matching the guide block; or, the lock rod 2 is provided with a guide groove, and the first positioning sleeve 1 is provided with a guide groove matching the guide groove The guide block.

Example two

Please refer to Figures 1 to 5, the second embodiment of the present invention is: please refer to Figures 1 to 3, a lock body of a lock assembly, including a first positioning sleeve 1, a lock rod 2, a handle 3, a first support rod 4. The second support rod 5 and the second positioning sleeve 7, the first positioning sleeve 1 is rotatably sleeved in the second positioning sleeve 7, the lock rod 2 is slidably sleeved in the first positioning sleeve 1, and the first support rod 4 is fixed On the first positioning sleeve 1 and hinged with one end of the handle 3, the second support rod 5 is hinged with the lock rod 2 and the handle 3 respectively, and the end of the lock rod 2 away from the second support rod 5 is provided with a lock head. Rotate the handle 3 around the first support rod 4, and at the same time, because the second support rod 5 connects the handle 3 and the lock rod 2, the handle 3 will pull the lock rod 2 so that the lock rod 2 will follow the first positioning sleeve 1. At the same time, since the first support rod 4 and the first positioning sleeve 1 are fixed together, when the handle 3 is turned to make the handle 3 rotate in the circumferential direction around the lock rod 2, the handle 3, the first positioning sleeve 1 and the lock The rods 2 all rotate at the same time, and the first positioning sleeve 1 also rotates in the second positioning sleeve 7.

Specifically, the distance from the hinge joint of the second support rod 5 and the lock rod 2 to the first support rod 4 is smaller than the distance from the hinge joint of the second support rod 5 and the handle 3 to the first support rod 4.

3 and 4, the handle 3 is provided with a first limiting slot 31, one end of the second support rod 5 is located in the first limiting slot 31, so that the maximum rotation range of the second support rod 5 can be limited .

The first support rod 4 and the first positioning sleeve 1 are integrally formed. However, in this embodiment, the first support rod 4 and the first positioning sleeve 1 are detachably connected. In this way, the processing and later maintenance of the lock body parts can be facilitated. The first support rod 4 is fixedly arranged on the first positioning sleeve 1 to increase the height of the hinge point on the first positioning sleeve 1.

As shown in Figure 3, the lock lever 2 is provided with a guide block 61, and the first positioning sleeve 1 is provided with a guide groove 62 matching the guide block 61; in other embodiments, the guide groove 62 can also be selected On the lock rod 2, a guide block 61 matched with the guide groove 62 is arranged on the first positioning sleeve 1. It is easy to understand that the guide groove 62 is arranged along the axial direction of the lock rod 2.

Please combine Figure 2, Figure 3 and Figure 5, in order to make the lock rod 2 of the lock body and the lock hole in the lock seat of the lock assembly be completely locked, the second positioning sleeve 7 includes a fixed portion 71 and a socket portion 72 connected to each other. , The socket portion 72 is provided with a gap 73, the first support rod 4 is located in the gap 73, and the fixing portion 71 is provided with a boss 74, the boss 74 is located in the gap 73, and the height of the boss 74 is from one end to the other end As the height gradually becomes higher, the end of the first support rod 4 away from the handle 3 abuts against the top surface of the boss 74 and is slidably arranged along the top surface of the boss 74. The lock rod 2 is provided with a U-shaped guide groove 21, and the second positioning sleeve 7 is provided with a limit post 75 that cooperates with the U-shaped guide groove 21. The U-shaped guide groove 21 includes a sliding guide groove and two rotation guide grooves. The sliding guide groove is arranged along the axial direction of the lock rod 2, and the rotation guide groove is respectively connected to two ends of the sliding guide groove. Specifically, the first positioning sleeve 1 is provided with an escape opening 8 at a position corresponding to the U-shaped guide groove 21, and one end of the limiting post 75 passes through the escape opening 8 and is inserted into the U-shaped guide groove 21. In more detail, the opening angle of the avoidance port 8 is greater than or equal to 90 degrees, that is, the length of the avoidance port 8 is greater than or equal to the length of the rotating guide groove, so that it will not affect the first positioning sleeve 1 and the lock lever 2. Rotate.

As shown in Figure 3, the second positioning sleeve 7 is provided with a first elastic member 9, one end of the first elastic member 9 is provided with a butting portion 91, and the outer peripheral wall of the first positioning sleeve 1 is provided with a rack to abut against The portion 91 abuts against the rack. The rack includes a plurality of teeth 10. Optionally, the first elastic member 9 is a torsion spring, and the second positioning sleeve 7 is provided with a mounting post for fixing the first elastic member 9. The torsion spring is sleeved on the mounting post, one end of the torsion spring is fixed on the mounting post or the second positioning sleeve 7, and the other end of the torsion spring is bent toward the first positioning sleeve 1 to form the abutting portion 91. However, in this embodiment, the first elastic member 9 is an elastic piece, and one end or the middle area of the elastic piece is bent with a corner that abuts against the rack, and this corner is the abutting portion 91, and the mounting post is Mounting screws through the shrapnel.

2 and 3, in order to prevent accidental rotation of the first positioning sleeve 1/lock rod 2 relative to the second positioning sleeve 7, the second positioning sleeve 7 is provided with at least two locking grooves 76, and the handle 3 is provided There is a locking assembly 11 that cooperates with the locking groove 76. In this embodiment, since the lock lever 2 is rotated by 90° to lock/unlock, the two locking grooves 76 provided on the second positioning sleeve 7 of this embodiment are separated by 90°.

Specifically, the locking assembly 11 includes a reset elastic member and a locking member rotatably arranged on the handle 3, one end of the locking member has a button exposed on the handle 3, and the other end of the locking member is provided with a locking groove 76 In the locking lever, the reset elastic member connects the locking member and the handle 3. In this embodiment, the reset elastic member is a torsion spring.

As shown in FIG. 4, the handle 3 is provided with a receiving cavity 32 for receiving the end of the lock rod 2.

Example three

1-10, the third embodiment of the present invention is: the display screen includes a plurality of frames, two adjacent frames are connected and fixed by a lock assembly, as shown in FIGS. 6 and 7, the lock assembly includes The lock body and the lock seat are matched, the lock body is installed on one side of the frame, and the lock seat is installed on the other side of the frame to cooperate with the lock body on the adjacent side frame.

1 to 3, the lock body includes a first positioning sleeve 1, a lock rod 2, a handle 3, a first support rod 4, a second support rod 5, and a second positioning sleeve 7. The first positioning sleeve 1 rotates It is sleeved in the second positioning sleeve 7, the lock rod 2 is slidably sleeved in the first positioning sleeve 1, the first support rod 4 is fixed on the first positioning sleeve 1 and is hinged with one end of the handle 3, and the second support rod 5 They are hinged to the lock rod 2 and the handle 3 respectively, and the lock rod 2 is provided with a lock head at one end away from the second support rod 5. It is easy to understand that the side of the frame where the lock body is installed is provided with an access hole (not shown in the figure) for the lock rod 2 to enter and exit.

Please combine Figure 2, Figure 3 and Figure 5, in order to make the lock rod 2 of the lock body and the lock hole in the lock seat of the lock assembly be completely locked, the second positioning sleeve 7 includes a fixed portion 71 and a socket portion 72 connected to each other. , The socket portion 72 is provided with a gap 73, the first support rod 4 is located in the gap 73, and the fixing portion 71 is provided with a boss 74, the boss 74 is located in the gap 73, and the height of the boss 74 is from one end to the other end As the height gradually becomes higher, the end of the first support rod 4 away from the handle 3 abuts against the top surface of the boss 74 and is slidably arranged along the top surface of the boss 74. The lock rod 2 is provided with a U-shaped guide groove 21, and the second positioning sleeve 7 is provided with a limit post 75 that cooperates with the U-shaped guide groove 21. The U-shaped guide groove 21 includes a sliding guide groove and two rotation guide grooves. The sliding guide groove is arranged along the axial direction of the lock rod 2, and the rotation guide groove is respectively connected to two ends of the sliding guide groove. When the lock rod 2 rotates, there is an axial movement increment. After the lock head is engaged with the lock hole, the lock rod 2 and the lock seat are completely locked. Specifically, the first positioning sleeve 1 is provided with an escape opening 8 at a position corresponding to the U-shaped guide groove 21, and one end of the limiting post 75 passes through the escape opening 8 and is inserted into the U-shaped guide groove 21. In more detail, the opening angle of the escape opening 8 is greater than or equal to 90 degrees, that is, the length of the escape opening 8 is greater than or equal to the length of the rotation guide groove, so that the rotation of the lock body will not be affected.

When the lock rod rotates, the first support rod 4 interferes with the boss 74, so that the lock rod produces a retracted displacement when it is locked. When the lock head buckles the lock hole in the extension member 14, This retraction displacement will cause the lock rod to pull the extension piece 14 so that the extension end of the extension piece 14 extends toward the lock rod side and enters the hole for the lock rod to enter and exit (the hole is on the side of the frame where the lock body is installed. On the side), through the alignment of the extension piece 14, an accurate splicing frame is realized and misalignment is reduced.

As shown in Figure 4, the handle 3 is provided with a receiving cavity 32 for receiving the end of the lock rod 2, that is, the hinge joint of the lock rod 2 and the second support rod 5 and at least part of the second support rod 5 can be received in In the receiving cavity 32.

Please refer to Figures 8 to 10, the lock seat includes a seat body 12, a second elastic member 13 and a protruding member 14 slidingly sleeved in the seat body 12, and the second elastic member 13 connects the seat body 12 and the protruding member 14. The extension piece 14 is provided with a lock hole that matches with the lock head of the lock rod 2. In detail, the seat body 12 is provided with a through hole for accommodating the protruding member 14, and at least a part of the protruding member 14 is slidably disposed in the through hole. The second elastic member 13 may be a spring.

In order to make the extension piece 14 slide more smoothly and prevent the extension piece 14 from escaping from the seat body 12, the seat body 12 is provided with a limiting rod 15 and the extension piece 14 has a second limiting groove 141 arranged along its sliding direction. One end of the limiting rod 15 is located in the second limiting groove 141.

As shown in FIG. 10, the inner side of one end of the extension member 14 close to the lock body is provided with a first guide surface 142 for guiding the lock rod 2.

A second guide surface 143 is provided on the outer edge of one end of the extension piece 14 close to the lock body. This facilitates the alignment of the extension piece 14 with the access hole, thereby realizing precise and rapid alignment of the lock body and the lock base. connect. In this embodiment, the end of the protruding end is provided with an inclined surface converging toward its center. When the protruding end extends into the access hole of the adjacent side frame for the lock rod 2 to enter and exit, it passes through the inclined surface (ie, the second guide surface 143). ) It can better guide the protruding end into the inlet and outlet holes accurately.

9 and 10, in this embodiment, the extension member 14 includes a connected extension end and a limiting end, the first guide surface 142 and the second guide surface 143 are respectively provided on the extension end, so The protruding end can extend relative to the end surface of the seat body 12, and the cooperation of the limiting rod 15 and the second limiting groove 141 can limit the protruding length of the extending end. In order to prevent the protrusion 14 from rotating relative to the seat body 12, a limit notch is provided on the limit end, and one end of the through hole is provided with a third limit slot 121 that matches the contour of the limit end. 121 is connected to the through hole. Since the third limiting slot 121 is non-circular, the inner side of the third limiting slot 121 has a limiting structure that matches with the limiting gap. In this embodiment, the limiting structure is a limiting structure. Piece.

As shown in Figure 9, the base body 12 is screwed, welded or snap-connected to the frame. In this embodiment, the base body 12 is provided with mounting holes 122 for installing thumb screws. In this way, the base body 12 and the frame can be conveniently connected The disassembly and assembly.

In summary, the lock rod, lock body, lock assembly and display screen provided by the present invention utilize the principle of leverage to allow users to join the display screen frame more labor-saving; the setting of the lock base extension can realize the lock base The automatic alignment with the lock body makes the splicing more convenient and the operation smoother, which greatly enhances the user's operating experience; the cooperation of the U-shaped guide groove and the limit post is matched with the first positioning sleeve and the boss to make the lock body When locked with the lock base, it can achieve a complete locking effect, which effectively improves the stability of the connection between the lock body and the lock base; the structural stability is good, and the operation feel is good.

The above are only the embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent transformations made using the content of the description and drawings of the present invention, or directly or indirectly applied in related technical fields, are included in the same reasoning. Within the scope of patent protection of the present invention.

Claims

A lock rod member, which is characterized in that it comprises a first positioning sleeve, a lock rod, a handle, a first support rod and a second support rod. The lock rod is slidingly sleeved in the first positioning sleeve, and the first support rod is fixed on the first positioning sleeve. A positioning sleeve is attached and hinged with one end of the handle, and the second support rod is hinged with the lock rod and the handle respectively.
The lock rod member according to claim 1, wherein the distance from the hinge joint of the second support rod and the lock rod to the first support rod is smaller than the distance from the hinge joint of the second support rod and the handle to the first support rod.
The lock lever according to claim 1, wherein the handle is provided with a receiving cavity for receiving the end of the lock lever.
The lock rod member according to claim 1, wherein the handle is provided with a first limiting groove, and one end of the second supporting rod is located in the first limiting groove.
The lock rod according to claim 1, wherein the first support rod and the first positioning sleeve are integrally formed, or the first support rod and the first positioning sleeve are detachably connected.
The lock rod according to claim 1, wherein the lock rod is provided with a guide block, and the first positioning sleeve is provided with a guide groove matching the guide block; or, the lock rod is provided with a guide groove, A positioning sleeve is provided with a guide block matched with the guide groove.
The lock body is characterized in that it comprises the lock rod according to any one of claims 1-6.
The lock body according to claim 7, further comprising a second positioning sleeve, the first positioning sleeve is rotatably sleeved in the second positioning sleeve.
8. The lock body according to claim 8, wherein the second positioning sleeve comprises a fixed part and a socket part connected to each other, the socket part is provided with a notch, and the first support rod is located in the notch.
The lock body according to claim 9, wherein the fixing part is provided with a boss, the boss is located in the notch, the height of the boss gradually increases from one end to the other end, and the end of the first support rod away from the handle Contradict the top surface of the boss.
The lock body according to claim 8, wherein the second positioning sleeve is provided with a first elastic member, one end of the first elastic member is provided with an abutting portion, and the outer peripheral wall of the first positioning sleeve is provided with a rack , The abutment part abuts on the rack.
The lock body according to claim 9, wherein the second positioning sleeve is provided with a mounting post for fixing the first elastic member.
8. The lock body according to claim 8, wherein the lock rod is provided with a U-shaped guide groove, and the second positioning sleeve is provided with a limit post matching the U-shaped guide groove.
8. The lock body according to claim 8, wherein the second positioning sleeve is provided with at least two locking grooves, and the handle is provided with a locking component that cooperates with the locking grooves.
The lock body according to claim 14, wherein the locking assembly includes a reset elastic member and a locking member rotatably arranged on the handle, one end of the locking member has a button exposed on the handle, and the other end of the locking member A locking rod matched with the locking groove is provided, and the reset elastic piece is connected with the locking piece and the handle.
The lock assembly is characterized in that it comprises a matching lock body and a lock base, and the lock body is the lock body according to any one of claims 8-15.
The lock assembly according to claim 16, wherein the lock base includes a base body, a second elastic member, and an extension member slidingly sleeved in the base body, and the second elastic member connects the base body and the extension member to extend A lock hole matched with the lock rod is provided on the piece.
The lock assembly according to claim 17, wherein a limit rod is provided on the seat body, a second limit groove is provided on the extension member along the sliding direction thereof, and one end of the limit rod is located in the second limit groove Inside.
The lock assembly according to claim 17, wherein the inner side of one end of the protruding member close to the lock body is provided with a first guide surface for guiding the lock rod.
The lock assembly according to claim 17, wherein the outer edge of one end of the protruding member close to the lock body is provided with a second guide surface.
The display screen is characterized in that it comprises the lock assembly according to any one of claims 17-20.