Lock seat, connecting device and display screen

Abstract

The invention discloses a lock seat, a connecting device and a display screen, the display screen comprises the connecting device, the connecting device comprises the lock seat, the lock seat comprises a fixed seat, a sliding seat, a rotating piece, a locking piece and a wave bead, and the fixed seat is in sliding connection with the sliding seat; the fixed seat is provided with a first mounting hole, and the rotating piece and the locking piece are arranged in the first mounting hole; the locking piece can move in the axial direction relative to the first mounting hole; the locking piece is arranged between the rotating piece and the sliding seat; a sliding groove is formed in the first face, opposite to the rotating piece, of the locking piece. The sliding groove is provided with a first section and a second section, and the groove depth of the first section is larger than that of the second section. The wave bead is connected with the rotating piece; the ball is arranged in the sliding groove, the rotating piece is rotated, the ball is switched between the first section and the second section, and when the ball is located on the second section, the locking piece abuts against the sliding seat so as to achieve locking of the fixed seat and the sliding seat. Only by rotating the rotating piece, locking of the fixed seat and the sliding seat can be achieved, and operation is easy and convenient.

Description

Technical Field

[0001] The present invention relates to the field of displays, and particularly to a lock base, a connecting device and a display screen. Background Art

[0002] In occasions such as exhibitions and stages, generally a large display screen is required. To achieve a large display screen, multiple display screens are generally spliced. Sometimes an arc-shaped display screen needs to be spliced, and in this case, an arc-shaped lock base is required. The inventor found that the existing arc-shaped lock base is troublesome to operate when locking. Summary of the Invention

[0003] The problem to be solved by the present invention is that the existing arc-shaped lock base is troublesome to operate when locking.

[0004] The technical solution adopted by the present invention is as follows:

[0005] A lock base, comprising:

[0006] A fixed seat and a sliding seat, the fixed seat and the sliding seat are slidably connected, and the sliding track is arc-shaped;

[0007] A rotating member, the fixed seat is provided with a first mounting hole, the rotating member is arranged in the first mounting hole, and the rotating member can rotate relative to the fixed seat;

[0008] A locking member, arranged in the first mounting hole and capable of axially moving relative to the first mounting hole; the locking member is arranged between the rotating member and the sliding seat; a chute is provided on a first surface of the locking member opposite to the rotating member, and the chute extends circumferentially; the chute has a first section and a second section, the first section and the second section are communicated, and the groove depth of the first section is greater than that of the second section;

[0009] A ball, connected to the rotating member; and the ball is arranged in the chute. Rotating the rotating member, the ball is switched between the first section and the second section. Wherein, when the ball is in the second section, the locking member abuts against the sliding seat to realize the locking of the fixed seat and the sliding seat.

[0010] Further, an elastic member is further included, the elastic member is sleeved on the locking member, and one end of the elastic member abuts against the locking member, and the other end of the elastic member abuts against the sliding seat.

[0011] Further, a silica gel member is further included, the silica gel member is fixedly connected to the locking member, and the silica gel member is arranged between the locking member and the sliding seat.

[0012] Further, it further includes a handle which is fixedly connected to the rotating member. The handle extends outside the first mounting hole. By rotating the handle, the handle drives the rotating member to rotate.

[0013] Further, it further includes a lead screw and a threaded sleeve. The threaded sleeve is sleeved on the lead screw. The sliding seat is provided with a second mounting hole. The lead screw and the threaded sleeve are arranged in the second mounting hole, and the lead screw can rotate relative to the second mounting hole but cannot slide along the axial direction of the second mounting hole. The threaded sleeve is connected to the fixed seat.

[0014] Further, it further includes a first screw. The sliding seat is provided with a first arc-shaped groove which coincides with the sliding tracks of the fixed seat and the sliding seat. The threaded sleeve is provided with a limiting groove. After the first screw is threadedly connected to the fixed seat, it passes through the first arc-shaped groove and extends into the limiting groove.

[0015] Further, it further includes a turntable which is fixedly connected to the lead screw, and a part of the turntable is exposed outside the sliding seat.

[0016] Further, the fixed seat is provided with a first angle reading serving as a main scale, and the sliding seat is provided with a second angle reading serving as a vernier scale.

[0017] A connecting device includes a connecting lock and the above-mentioned lock seat, and the connecting lock is connected to the sliding seat.

[0018] A display screen includes:

[0019] A frame and a display module, and the display module is installed on the frame;

[0020] A connecting lock and the above-mentioned lock seat, the connecting lock is fixedly connected to one end of the frame, and the lock seat is fixedly connected to the other end of the frame.

[0021] In summary, the beneficial effects of the present invention are:

[0022] In this application, only by rotating the rotating member can the locking of the fixed seat and the sliding seat be achieved, and the operation is simple and convenient. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the connecting device;

[0024] Figure 2 It is a schematic structural diagram of the lock seat;

[0025] Figure 3 It is a cross-sectional view of the lock seat;

[0026] Figure 4 It is a schematic structural diagram of the locking member;

[0027] Figure 5 is an exploded view of the lock base;

[0028] Figure 6 is a sectional view of the lock base;

[0029] Figure 7 is a schematic structural diagram of the lock base. Specific embodiments

[0030] In order to make the above - mentioned objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific embodiments of the present invention will be made with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] A display screen includes a display module, a frame, and a connecting device. The display module includes a light - guide plate, and the light - guide plate includes a circuit board and LED lamp beads. The LED lamp beads are installed on the circuit board. In some embodiments, the display module further includes a bottom case, and the bottom case is arranged on the side of the circuit board without lamp beads. In some embodiments, the frame is in a shape of a square, a rectangle with a horizontal bar in the middle, or a rectangle with a cross in the middle.

[0034] The connecting device includes a lock base 1 and a connecting lock 30. The lock base 1 is installed on the left side of the frame, and the connecting lock 30 is installed on the right side of the frame. When two display screens are spliced, the connecting lock 30 of one display screen is connected to the lock base 1 of the other display screen, thereby realizing the splicing of the two display screens.

[0035] See Figure 3 、 Figure 4 and Figure 5, the lock base 1 includes a fixed base 2, a sliding base 3, a rotating member 4, a locking member 5, and a ball 6. The fixed base 2 is fixedly installed on the frame by screws. The fixed base 2 and the sliding base 3 are slidably connected, and the sliding trajectory is arc-shaped. Specifically, in some embodiments, the sliding base 3 is provided with a first arc-shaped groove 301, and a first guiding protrusion 201 is provided on the surface of the fixed base 2 facing the sliding base 3. When the sliding base 3 slides relative to the fixed base 2, the first guiding protrusion 201 slides in the first arc-shaped groove 301, so that the sliding trajectories of the fixed base 2 and the sliding base 3 are arc-shaped. The sliding of the sliding base 3 relative to the fixed base 2 can adjust the splicing arc (angle) of the two display screens. In some embodiments, the sliding base 3 is provided with a card slot 302, and the buckle 31 of the connecting lock 30 is arranged in the card slot 302 (see Figure 1 ), so as to realize the connection between the lock base 1 and the connecting lock 30. In some embodiments, the sliding base 3 is provided with a lock hole, and the connecting lock 30 is inserted into the lock hole, so as to realize the connection between the lock base 1 and the connecting lock 30. The fixed base 2 is provided with a first mounting hole 202, the rotating member 4 is arranged in the first mounting hole 202, and the rotating member 4 can rotate relative to the fixed base 2. The locking member 5 is arranged in the first mounting hole 202 and can move axially relative to the first mounting hole 202; the locking member 5 is arranged between the rotating member 4 and the sliding base 3; a first surface 501 of the locking member 5 opposite to the rotating member 4 is provided with a sliding groove 502, and the sliding groove 502 extends circumferentially; the sliding groove 502 has a first section 5021 and a second section 5022, the first section 5021 and the second section 5022 are communicated, and the groove depth of the first section 5021 is greater than the groove depth of the second section 5022; the ball 6 is connected to the rotating member 4; and the ball 6 is arranged in the sliding groove 502. By rotating the rotating member 4, the ball 6 is converted between the first section 5021 and the second section 5022. Among them, when the ball 6 is in the second section 5022, the locking member 5 presses against the sliding base 3 to realize the locking of the fixed base 2 and the sliding base 3. In this application, only by rotating the rotating member 4 can the locking of the fixed base 2 and the sliding base 3 be realized, and the operation is simple and convenient.

[0036] See Figure 3 and Figure 5 , in some embodiments, the lock base 1 further includes an elastic member 7. The elastic member 7 is sleeved on the locking member 5, and one end of the elastic member 7 abuts against the locking member 5, and the other end of the elastic member 7 abuts against the sliding base 3. With the arrangement of the elastic member 7, when the ball 6 is in the first section 5021, the extrusion force of the locking member 5 on the sliding base 3 disappears. Under the elastic force of the elastic member 7, the locking member 5 moves in a direction away from the sliding, so that when the sliding base 3 slides relative to the fixed base 2, it is more smooth. In some embodiments, the elastic member 7 is a spring.

[0037] See Figure 3 and Figure 5 In some embodiments, the [device] further includes a silica gel member 8, which is fixedly connected to the locking member 5 (for example, the silica gel member 8 is adhered to the locking member 5), and the silica gel member 8 is disposed between the locking member 5 and the sliding seat 3. Adding the silica gel member 8 to the locking member 5 to make the silica gel member 8 abut against the sliding seat 3 can increase the friction between the silica gel member 8 and the sliding seat 3, so as to better lock the fixed seat 2 and the sliding seat 3.

[0038] See Figure 3 and Figure 5 In some embodiments, the rotating member 4 is fixedly connected to the handle 9 by screws, and the handle 9 extends outside the first mounting hole 202. Rotating the handle 9 drives the rotating member 4 to rotate. The setting of the handle 9 facilitates the rotation of the rotating member 4.

[0039] See Figure 5 and Figure 6 In some embodiments, the lock base 1 further includes a lead screw 10 and a threaded sleeve 11, and the threaded sleeve 11 is sleeved on the lead screw 10; the sliding seat 3 is provided with a second mounting hole 302 (see Figure 5 ), the lead screw 10 and the threaded sleeve 11 are disposed in the second mounting hole 302, and the lead screw 10 can rotate relative to the second mounting hole 302. The lock base 1 further includes a cover plate 12, and the cover plate 12 is fixedly connected to the sliding seat 3 by screws, and the cover plate 12 covers the second mounting hole 302. One end of the lead screw 10 abuts against the sliding seat 3, and the other end of the lead screw 10 abuts against the cover plate 12, so that the lead screw 10 cannot slide along the axial direction of the second mounting hole 302; the threaded sleeve 11 is connected to the fixed seat 2. Specifically, the threaded sleeve 11 is provided with a limiting groove 111. After the first screw 13 is threadedly connected to the fixed seat 2, it passes through the first arc-shaped groove 301 and extends into the limiting groove 111. When the lead screw 10 rotates, due to the limiting effect of the first screw 13 on the threaded sleeve 11, the threaded sleeve 11 cannot move in the axial direction of the lead screw 10. Since the threaded sleeve 11 cannot move, only the lead screw 10 can move. The movement of the lead screw 10 drives the sliding seat 3 to move, so that the sliding seat 3 slides relative to the fixed seat 2. Using the lead screw 10 as the driving member can, on the one hand, finely adjust the angle between the fixed seat 2 and the sliding seat 3; on the other hand, the lead screw 10 has a self-locking function to prevent the sliding seat 3 and the fixed seat 2 from accidentally sliding.

[0040] In some embodiments, a turntable 14 is fixed on the lead screw 10, and a part of the turntable 14 protrudes outside the sliding seat 3. When it is necessary to rotate the lead screw 10, rotating the turntable 14 can achieve the rotation of the lead screw 10. The setting of the turntable 14 facilitates the rotation of the lead screw 10.

[0041] See Figure 7 Figure 7 , in some embodiments, the fixed seat 2 is provided with a second arc-shaped groove 203, and a first angle reading 204 serving as a main scale is provided at the edge of the second arc-shaped groove 203. The sliding seat 3 is provided with a second protrusion 303. When the sliding seat 3 slides relative to the fixed seat 2, the second protrusion 303 slides in the second arc-shaped groove 203. A second angle reading 304 serving as a vernier scale is provided on the second protrusion 303. The first angle reading 204 and the second angle reading 304 form a vernier caliper, and the angle adjustment between the fixed seat 2 and the sliding seat 3 can be accurate to 0.1 degree.

[0042] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lock base, characterized in that, Comprising: A fixed seat and a sliding seat, the fixed seat and the sliding seat are slidably connected, and the sliding trajectory is arc-shaped; A rotating member, the fixed seat is provided with a first mounting hole, the rotating member is arranged in the first mounting hole, and the rotating member can rotate relative to the fixed seat; A locking member, arranged in the first mounting hole and capable of axially moving relative to the first mounting hole; the locking member is arranged between the rotating member and the sliding seat; a chute is provided on a first surface of the locking member opposite to the rotating member, and the chute extends circumferentially; the chute has a first section and a second section, the first section and the second section are communicated, and the groove depth of the first section is greater than that of the second section; A ball, connected to the rotating member; and the ball is arranged in the chute, rotating the rotating member, the ball is switched between the first section and the second section, wherein when the ball is in the second section, the locking member abuts against the sliding seat to realize the locking of the fixed seat and the sliding seat.

2. The lock base according to claim 1, characterized in that, It further includes an elastic member, the elastic member is sleeved on the locking member, and one end of the elastic member abuts against the locking member, and the other end of the elastic member abuts against the sliding seat.

3. The lock base according to claim 1, characterized in that, It further includes a silica gel member, the silica gel member is fixedly connected to the locking member, and the silica gel member is arranged between the locking member and the sliding seat.

4. A lock base according to claim 1, characterized in that, It further includes a handle, the handle is fixedly connected to the rotating member, the handle extends outside the first mounting hole, rotating the handle, the handle drives the rotating member to rotate.

5. A lock base as claimed in claim 1, characterized in that, It further includes a lead screw and a threaded sleeve, the threaded sleeve is sleeved on the lead screw; the sliding seat is provided with a second mounting hole, the lead screw and the threaded sleeve are arranged in the second mounting hole, and the lead screw can rotate relative to the second mounting hole and cannot slide axially along the second mounting hole; the threaded sleeve is connected to the fixed seat.

6. A lock base according to claim 5, characterized in that It further includes a first screw, the sliding seat is provided with a first arc-shaped groove, and the first arc-shaped groove coincides with the sliding trajectory of the fixed seat and the sliding seat; the threaded sleeve is provided with a limiting groove, after the first screw is threadedly connected to the fixed seat, it passes through the first arc-shaped groove and extends into the limiting groove.

7. A lock base according to claim 6, characterized in that, It further includes a turntable, the turntable is fixedly connected to the lead screw, and a part of the turntable is exposed outside the sliding seat.

8. A lock base according to claim 1, characterized in that, A first angle reading serving as a main scale is provided on the fixed seat, and a second angle reading serving as a vernier scale is provided on the sliding seat.

9. A connecting device, comprising a connecting lock and a lock seat according to any one of claims 1-8, the connecting lock is connected to the sliding seat.

10. A display screen, characterized in that, Comprising: A frame and a display module, the display module is installed on the frame; A connecting lock and a lock seat according to any one of claims 1-8, the connecting lock is fixedly connected to one end of the frame, and the lock seat is fixedly connected to the other end of the frame.

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