A climbing bracket

Abstract

The present invention relates to the field of display screen installation, and discloses an angle adjustment block. At least two fitting planes are wound around the outer periphery of the angle adjustment block, and at least one fitting plane is inclined axially along the rotation axis of the angle adjustment block. A groove is provided between adjacent fitting planes. By providing a groove as a locking structure on the angle adjustment block, the present invention helps to simplify the structure of the angle adjustment block and achieve quick locking / separation between the angle adjustment block and an external locking device.

Description

Technical Field

[0001] The present invention relates to the field of display installation, and in particular to a climbing bracket for adjusting the angle of a display screen. Background Art

[0002] With the development of technology, display screens have been increasingly used in people's lives and work. At the same time, the size of display screens has become larger and larger. For large-sized display screens, in order to reduce costs in production, transportation, storage, etc., they are usually composed of multiple small-sized display screens spliced together. Further, multiple small-sized display screens can also form an arc-shaped display screen through a splicing method with a certain included angle between each other. In the prior art, there is an angle adjustment device for adjusting the included angle between small-sized display screens, which includes an angle adjustment device and a locking device respectively installed on two adjacent display screens. When the angle adjustment device is adjusted to the required angle, the adjacent display screens can be fixed by locking through the locking device. However, the locking device in the prior art has a complex structure, resulting in the need to add a complex locking structure to the angle adjustment device, thereby increasing the cost of the angle adjustment device and also being inconvenient for disassembly and assembly; in addition, problems such as inaccurate positioning and loose locking also exist when using large-sized, complex-structured, and heavy display screens or climbing brackets. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an angle adjustment block to solve the problems of complex locking structure and inconvenient disassembly and assembly of the multi-angle adjustment connection device in the prior art.

[0004] The technical solution adopted by the present invention to solve its technical problems is:

[0005] An angle adjustment block, at least two splicing planes are wound around the outer periphery of the angle adjustment block, and at least one splicing plane is inclined along the axial direction of the rotation axis of the angle adjustment block, and a groove is provided between adjacent splicing planes.

[0006] As a further improvement of the above solution, a through hole is provided on the rotation axis of the angle adjustment block.

[0007] As a further improvement of the above solution, a stop surface is provided on the inner wall of the through hole, and the stop surface is parallel to the axis of the through hole.

[0008] As a further improvement of the above solution, both ends of the angle adjustment block along the rotation axis direction have end faces, and locking holes or locking posts are provided on the end faces along the rotation axis direction.

[0009] As a further improvement of the above solution, concave holes or ball head stud pins are provided on the end face of the angle adjustment block along the axial direction of the through hole.

[0010] As a further improvement of the above solution, a boss coaxial with the through hole is provided on the end face of the angle adjustment block.

[0011] As a further improvement of the above solution, positioning holes and / or positioning posts are provided on the mating plane.

[0012] As a further improvement of the above solution, at least two tooth-shaped protrusions are provided on the outer periphery of the main body, and a mating plane is provided on the tooth-shaped protrusions.

[0013] As a further improvement of the above solution, along the rotation direction of the angle adjustment block, each tooth-shaped protrusion is connected to a groove in sequence, and the tooth-shaped protrusion and the groove it is connected to are a matching use group.

[0014] As a further improvement of the above solution, the inclination angle directions of the mating plane on the tooth-shaped protrusion and the groove of the matching use group are the same.

[0015] The beneficial effects of the present invention are:

[0016] By providing a groove on the angle adjustment block as a locking structure, the present invention helps to simplify the structure of the angle adjustment block and achieve rapid locking / separation between the angle adjustment block and an external locking device. When the mating block on the locking device is mated with the mating plane on the angle adjustment block, the hook on the locking device can be quickly locked / separated between the climbing brackets by being inserted into / removed from the groove corresponding to the mating plane, with high disassembly and assembly efficiency, and at the same time helps to simplify the structure of the angle adjustment block; the mating plane of the angle adjustment block can also be assembled with the mating plane of the mating block in the locking device, with high positioning accuracy and more convenient alignment during assembly; in addition, the cooperation between the hook and the groove can achieve a large locking range, making the locking tighter, helping to improve the stability of the overall structure of the climbing bracket or display screen after locking, greatly increasing the force contact points at the structure connection, significantly improving the load-bearing effect, and improving durability, which can effectively reduce the production and use costs. Description of the Drawings

[0017] The present invention will be further described below in conjunction with the drawings and embodiments.

[0018] Figure 1 is an exploded schematic view of the multi-angle adjustment connection device of the present invention in one direction;

[0019] Figure 2 is an exploded schematic view of the multi-angle adjustment connection device of the present invention in another direction;

[0020] Figure 3 is a front view of an embodiment of the angle adjustment block of the present invention;

[0021] Figure 4 is a three-dimensional schematic view of an embodiment of the climbing bracket of the present invention;

[0022] Figure 5 is a perspective schematic view of an embodiment of the latch device of the present invention;

[0023] Figure 6 is an exploded schematic view of the connection between the latch device of the present invention and the multi-angle adjustment connection device;

[0024] Figure 7 is a perspective schematic view of the connection between the latch device of the present invention and the multi-angle adjustment connection device;

[0025] Figure 8 is a top view of the connection between the latch device of the present invention and the multi-angle adjustment connection device;

[0026] Figure 9 is a top view of the inner arc splicing of the display screen assembly of the present invention;

[0027] Figure 10 is a top view of the outer arc splicing of the display screen assembly of the present invention. Detailed Embodiments

[0028] Referring to Figure 1 、 Figure 2 , exploded schematic views of the multi-angle adjustment connection device of the present invention in different directions are respectively shown. As shown in the figure, the multi-angle adjustment connection device includes a first fixing seat 110, a second fixing seat 120, a rotating shaft 130, an angle adjustment block 140 and a locking device.

[0029] The first fixing seat 110 is preferably a circular ring, which is fixedly connected to an external component through a threaded fastener such as a screw. The second fixing seat 120 has a stepped hole 121 coaxial with the first fixing seat 110, and a rotating shaft hole 122 coaxial with the stepped hole 121 is provided at the center of the stepped hole 121. The second fixing seat 120 is also provided with mounting holes (not shown), and the mounting holes are arranged along the radial direction of the rotating shaft hole 122 and communicate with the rotating shaft hole 122.

[0030] Both ends of the rotating shaft 130 are rotatably connected to the first fixing seat 110 and the second fixing seat 120 respectively. Specifically, the rotating shaft 130 includes a head end connected to the first fixing seat 110 and a tail end connected to the second fixing seat 120. The rotating shaft 130 is provided with at least one groove along the circumferential direction. At the same time, the rotating shaft 130 is provided with at least two rows of the above grooves along the axial direction. Among them, the grooves include a first groove 131 arranged close to the tail end and a second groove 132 arranged close to the head end. Preferably, a plurality of first grooves 131 and a plurality of second grooves 132 are evenly distributed along the circumference of the head end. A ring groove is provided at the tail end of the rotating shaft 130, and a plurality of tooth grooves are provided at the bottom of the ring groove, and the tooth teeth 133 are convex between the tooth grooves. A flat mating surface 135 is provided on the outer surface of the rotating shaft 130, and the mating surface is parallel to the axis of the rotating shaft 130.

[0031] The angle adjustment block 140 includes a main body. A through hole is provided on the main body, and a stop surface 1411 is provided in the through hole. The stop surface is parallel to the axis of the rotating shaft 130. The stop surface 1411 of the angle adjustment block 140 matches and clamps with the mating surface 135 of the rotating shaft 130, so that the two cannot rotate relative to each other. When the angle adjustment block 140 rotates, the rotating shaft 130 rotates simultaneously. That is, the angle adjustment block 140 can rotate relative to the first fixed seat 110 and the second fixed seat 120 respectively through the rotating shaft 130. Of course, it is also possible that both ends of the rotating shaft 130 are fixedly connected to the first fixed seat 110 and the second fixed seat 120, and the angle adjustment block 140 can rotate relative to the rotating shaft 130.

[0032] One surface of the angle adjustment block 140 for installing with the second fixed seat 120 has a boss 1412. The boss 1412 is fitted and installed with the stepped hole 121 of the second fixed seat 120 to provide support and guiding effects for the angle adjustment block 140 on the second fixed seat 120 during rotation. A ball plunger 124 with a ball head facing the boss 1412 is also installed on the second fixed seat 120. A concave hole for mating with the ball head is provided on the boss 1412. When the angle adjustment block 140 rotates, the ball plunger 124 slides through the concave hole to provide the rotation resistance of the angle adjustment block 140. When the rotation angle of the angle adjustment block 140 reaches a predetermined position, the ball head is located in the concave hole.

[0033] The locking device is used to lock and fix the angle adjustment block 140 after it rotates to a set position. As a preferred implementation of the locking device, it includes a sliding member 150 provided between the first fixed seat 110 and the angle adjustment block 140. The sliding member 150 is preferably a ring sleeved on the rotating shaft 130. A plurality of guiding columns 134 extending axially along the rotating shaft 130 are provided on the first fixed seat 110. A guiding hole is provided on the sliding member 150, and the guiding columns 134 are inserted into the guiding hole. In this way, the sliding member 150 can slide axially along the rotating shaft 130 and will not rotate at the same time. Of course, it is also possible that guiding columns are provided on the sliding member 150 and guiding holes are provided on the first fixed seat 110.

[0034] A locking column 151 is also provided on the sliding member 150, and a locking hole 147 is provided on the angle adjustment block 140. Slide the sliding member 150 so that the locking column 151 is inserted into the locking hole. Since the sliding member 150 cannot rotate, the rotation of the angle adjustment block 140 can be restricted. Slide the sliding member 150 so that the locking column 151 disengages from the locking hole, and at this time the angle adjustment block 140 can rotate freely.

[0035] Preferably, a plurality of ball plungers 152 are radially arranged on the circumference of the sliding member 150, and one end of the ball plunger 152 extending into the central through hole of the sliding member 150 is a ball head, and the ball plunger 152 is threadedly connected to the sliding member 150, so that the length of the ball head extending into the central through hole can be adjusted by rotating the sliding member 150 relative to the sliding member 150. When the sliding member 150 slides to the locking position for locking the angle adjustment block 140, the ball head of the ball plunger 152 is embedded in the first groove 131 at the head end of the rotating shaft 130, and when the sliding member 150 slides to the unlocking position separated from the angle adjustment block 140, the ball head of the ball plunger 152 is embedded in the second groove 132, thereby realizing the positioning of the sliding position of the sliding member 150.

[0036] In addition, the circumference of the sliding member 150 preferably further extends with a plurality of bosses 153, on which the locking posts 151 are distributed. The bosses 153 can be used as a handle for the user to push the sliding member 150, and can also increase the distribution radius of the locking posts 151, thereby enhancing the locking effect with the angle adjustment block 140.

[0037] Preferably, a telescopic tongue 160, a spring 170 and a mounting seat 180 are sequentially provided in the mounting hole on the second fixing seat 120 that is connected to the rotating shaft hole 122, and is connected and fixed in the radial mounting hole that is connected to the rotating shaft hole 122 via the mounting seat 180. The telescopic tongue 160 can elastically move in the mounting hole through the spring, and the tongue tip at the end of the telescopic tongue 160 is inserted and adapted in the tooth groove. Under the action of the spring 170, the tongue tip of the telescopic tongue 160 always applies a suitable rotational resistance to the rotating shaft 130. Through the cooperation between the telescopic tongue 160 and the tooth groove, the resistance of the rotating shaft 130 during rotation can be increased, thereby preventing the rotating shaft 130 from rotating at will.

[0038] Furthermore, a limiting groove is provided on the telescopic tongue 160 along the radial direction of the rotating shaft 130, and a limiting column 123 is correspondingly provided on the second fixed seat 120. The limiting column 123 is inserted into the limiting groove, thereby limiting the range of the telescopic tongue 160 to limit the jumping range, which can play a limiting role and avoid the situation where the telescopic tongue 160 is too tightly inserted into the tooth groove, resulting in the inability or uneven rotation of the rotating shaft.

[0039] Reference Figure 3, showing a front view of an embodiment of the angle adjustment block of the present invention. As shown in the figure, a through hole for the rotation shaft 130 to pass through is provided at the center of the angle adjustment block, and at least two fitting planes are provided in the circumferential direction. At least one of the fitting planes is inclined relative to the rotation shaft along the axial direction of the rotation shaft, and positioning holes are provided on the fitting planes. Grooves are also provided between adjacent fitting planes. Preferably, the extending direction of each groove is parallel to the inclination direction of the adjacent fitting plane. Specifically, several inclined tooth-shaped protrusions are provided on the outer periphery of the angle adjustment block 140. The tooth-shaped protrusions are inclined clockwise or counterclockwise around the axis of the rotation shaft. Each tooth-shaped protrusion and the groove arranged close to it along the rotation direction of the angle adjustment block form a matching use group. Further, the inclination directions of the fitting plane and the groove on the tooth-shaped protrusion of the matching use group are the same. The fitting plane being axially inclined relative to the axis of the rotation shaft can be understood as that in three-dimensional space, when the fitting plane and the axis of the rotation shaft extend infinitely, the two will intersect.

[0040] Specifically, in this embodiment, the first fitting plane 141, the second fitting plane 142, the third fitting plane 143, the fourth fitting plane 144, the fifth fitting plane 145 and the sixth fitting plane 146 are sequentially arranged on the circumference of the angle adjustment block. Among them, the first fitting plane 141 is parallel to the axial direction of the rotation shaft 130, and the second fitting plane 142, the third fitting plane 143, the fourth fitting plane 144, the fifth fitting plane 145 and the sixth fitting plane 146 are inclined relative to the rotation shaft 130, and the inclination angles are different. The groove used in cooperation with the first fitting plane 141 is the first groove 148a, the groove used in cooperation with the second fitting plane 142 is the second groove 148b, the groove used in cooperation with the third fitting plane 143 is the third groove 148c, the groove used in cooperation with the fourth fitting plane 144 is the fourth groove 148d, the groove used in cooperation with the fifth fitting plane 145 is the fifth groove 148e, and the groove used in cooperation with the sixth fitting plane 146 is the sixth groove 148f.

[0041] The so-called different inclination angles in this article include both different angle values and different inclination directions. Define the inclination directions of the second fitting plane 142 and the third fitting plane 143 in the figure as negative, then the fourth fitting plane 144, the fifth fitting plane 145 and the sixth fitting plane 146 are positive. According to the above definition, the inclination angles of the first fitting plane 141 to the sixth fitting plane 146 in this embodiment are 0°, -10°, -5°, +5°, +15° and +10° respectively, and angle marks are provided on the angle adjustment block corresponding to each fitting plane. According to the different number of gears of angle adjustment, the number and inclination angle of the fitting planes can be freely adjusted.

[0042] When inward adjustment is required, the gears for the inner arc surface are the graduation marks of +5°, +10°, and +15°; when outward adjustment is required, the gears for the outer arc surface are the graduation marks of -5° and -10°; when adjustment to the same plane is required, the gear is the 0° graduation mark.

[0043] In addition, as shown in the figure, since the areas of the third mating plane 143 and the fourth mating plane 144 are small, in order to increase the contact area between the mating plane and the mating block, an extended surface is provided on the angle adjustment block, specifically including a first extended surface 149 flush with the third mating plane 143 and a second extended surface 1410 flush with the fourth mating plane 144, so as to increase the areas of the third mating plane 143 and the fourth mating plane 144 respectively. Specifically, the rule for setting the extended surface is that the extended surface and the mating plane to be adapted are arranged on both sides of the groove to be adapted, and the extended surface is parallel and at the same height relative to the mating plane.

[0044] Refer to Figure 4 , which shows a three-dimensional schematic diagram of an embodiment of the climbing bracket of the present invention. As shown in the figure, the climbing bracket includes a frame 200, a locking device 300 and the above-mentioned multi-angle adjustment connecting device 100. The locking device 300 and the multi-angle adjustment connecting device 100 are respectively fixed on different sides of the frame 200. In this embodiment, it is preferably arranged on the opposite sides of the frame 200.

[0045] Refer to Figure 5 , which shows a three-dimensional schematic diagram of an embodiment of the locking device of the present invention. As shown in the figure, the locking device 300 includes a base 310, a handle 320, a sub-handle 330, a mating block 340 and a hook 350. Among them, the mating block 340 is fixedly connected to the base 310, the handle 320 is rotatably connected to the base 310 through a rotating shaft 321, the sub-handle 330 is rotatably connected to the handle 320 through a rotating shaft 331, and the hook 350 is rotatably connected to the handle 320 through a rotating shaft 351. When the handle 320 rotates upward, the end of the hook 350 away from the rotating shaft 351 tilts upward, and the hook 350 enters the unlocked state; when the handle 320 rotates downward, the end of the hook 350 away from the rotating shaft 351 swings downward, and the hook 350 enters the locked state.

[0046] In addition, a positioning post 311 is provided on the base 310, and a bayonet is provided on the sub-handle 330. When the sub-handle 330 rotates downward through the rotating shaft 331 so that the positioning post 311 is buckled into the bayonet, the upward rotation of the handle 320 is restricted, and further the hook 350 is fixed in the locked state. At this time, the handle 320 can be held and limited by the cross bar 332 on the sub-handle 330.

[0047] In this embodiment, the splicing block 340 is preferably a rectangular block, and the plane thereof that is spliced with the angle adjustment block does not have an inclined angle. During processing, only the accuracy of the splicing plane on the angle adjustment block needs to be ensured. Compared with the solution of making the splicing block 340 have an inclined angle, this form in which the splicing plane of the angle adjustment block has an inclined angle while the splicing block does not have an inclined angle can reduce the processing difficulty, help improve the installation accuracy, and ensure more reliable and tight locking after splicing.

[0048] The hook 350 is in a U shape and includes connecting portions that are rotatably connected to the handle 320 on both sides of the handle 320, and an intermediate portion that connects the connecting portions on both sides. When the hook 350 is buckled with the angle adjustment block, the intermediate portion is stuck in the groove of the angle adjustment block 140, and the connecting portions on both sides are located outside the angle adjustment block 140. When the splicing planes of the angle adjustment block 140 and the splicing block are spliced, they are directly spliced with each other, and then the hook 350 is hung in the external groove of the angle adjustment block. There can be a sufficiently large contact surface between the splicing plane of the angle adjustment block 140 and the splicing plane of the splicing block 340 during splicing, so that the positioning between the two is more accurate and the alignment during splicing is more convenient. The hook 350 is a U-shaped hook, which completely encloses the spliced portion of the angle adjustment block and the splicing block within the hook 350. It can play a pulling role during locking, hold the angle adjustment block and the splicing block tightly, and at the same time achieve a larger locking range. Since the hook is U-shaped, it will enclose a certain space range. And the angle adjustment block is provided with tooth-shaped protrusions and grooves. When the hook is hung in the groove of the tooth-shaped protrusion, the hook will enclose a whole piece of tooth-shaped protrusion on the angle adjustment block, and the tooth-shaped protrusion plays a role in bearing force, so that there is a larger contact surface and pulling fulcrum for snap locking between the hook and the angle adjustment block, thus making the locking tighter. One end of the groove of the angle adjustment block 140 is completely open. When the hook 350 needs to be stuck in the groove, it can be put in very smoothly without the need for special alignment, which is more convenient for operation.

[0049] Referring to Figure 6 , preferably, an avoidance groove 341 and a positioning post 342 are further provided on the splicing plane of the splicing block 340. The avoidance groove is used to accommodate the part of the angle adjustment block that does not participate in splicing to avoid interference. The positioning post cooperates with the positioning hole 1413 on the splicing plane to realize the positioning connection between the splicing block and the splicing plane of the angle adjustment block 140, play a role in alignment and limit, and can further bear the force from the spliced climbing bracket. Of course, it can also be that the splicing block is provided with a positioning hole and the splicing plane is provided with a positioning post.

[0050] The present invention also discloses a display screen assembly applying the above climbing bracket, which includes a display screen and at least two of the above climbing brackets. Referring to Figure 7 、 Figure 8, respectively showing a three-dimensional schematic diagram and a top view of the connection between the buckle device of the present invention and the multi-angle adjustment connection device. As shown in the figure, the buckle device 300 on one climbing bracket is used in cooperation with the multi-angle adjustment connection device 100 on another climbing bracket. The fitting block 340 on the buckle device 300 fits with a certain fitting plane on the multi-angle adjustment connection device 100, and the hook 350 is buckled into the groove corresponding to the fitting plane, so that the quick connection between the two climbing brackets can be realized. When the fitting block 340 fits with the first positioning surface 141, the two climbing brackets are parallel to each other. When the fitting block 340 fits with any one of the second positioning surface 142 to the sixth positioning surface 146, there is an included angle between the two climbing brackets that is the same as the inclination angle of the fitting plane. As Figure 9 shown, when the fitting block 340 fits with the fitting plane of +10°, the side of the display screen assembly with the display screen forms a continuous concave arc shape facing inwards, which is the inner arc splicing method; as Figure 10 shown, when the fitting block 340 fits with the fitting plane of -10°, the side of the display screen assembly with the display screen forms a continuous convex arc shape facing outwards, which is the outer arc splicing method. The positive and negative indications of the splicing angle are: the angle is positive when the inner arc is spliced, and the angle is negative when the outer arc is spliced.

[0051] In this embodiment, the connection between the display screen and the climbing bracket is detachable. When the display screen assembly is used outdoors, since the display screen itself is relatively thin and not resistant to wind resistance, it needs to be fixed by the climbing bracket. At the same time, the climbing bracket can also play a role in supporting the maintenance personnel to climb. When the display screen assembly is used indoors, since the problem of wind resistance does not need to be considered, the climbing bracket can be not used. That is, the angle adjustment block and the buckle device 300 provided on the climbing bracket can lock the climbing bracket and can also lock the display screens. The multi-angle adjustment device of the present application has stronger adaptability and can be applied to lighter display screens and heavier climbing brackets, and its load-bearing effect is better.

[0052] The above is a specific description of the preferred embodiment of the present invention, but the present invention is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of the present application.

Claims

1. A climbing bracket, characterized in that, it includes a frame, a locking device and a multi-angle adjustment connecting device. The locking device and the multi-angle adjustment connecting device are respectively fixed on different sides of the frame. The multi-angle adjustment connecting device includes an angle adjustment block. The locking device includes a fitting block and a hook. At least two fitting planes are wound around the outer periphery of the angle adjustment block, and at least one of the fitting planes is inclined along the axial direction of the rotation axis of the angle adjustment block. A groove is provided between adjacent fitting planes; At least two tooth-shaped protrusions are provided on the outer periphery of the angle adjustment block, and the fitting planes are provided on the tooth-shaped protrusions; Along the rotation direction of the angle adjustment block, each tooth-shaped protrusion is connected to the groove, and the tooth-shaped protrusion and the groove it is connected to form a matching use group; The inclination directions of the fitting plane on the tooth-shaped protrusion and the groove that form a matching use group are the same; An extension surface is further provided on the angle adjustment block. The extension surface and the adapted fitting plane are arranged on both sides of the adapted groove, and the extension surface is parallel and at the same height as the fitting plane; The locking device on one climbing bracket is used in cooperation with the multi-angle adjustment connecting device on another climbing bracket. The fitting block on the locking device is attached to a fitting plane on the multi-angle adjustment connecting device on another climbing bracket, and the hook is inserted into the groove corresponding to the fitting plane.

2. The climbing bracket according to claim 1, characterized in that, a through hole is provided on the angle adjustment block along the direction of its rotation axis.

3. The climbing bracket according to claim 2, characterized in that, a stop surface is provided on the inner wall of the through hole, and the stop surface is parallel to the axis of the through hole.

4. The climbing bracket according to claim 2, characterized in that, both ends of the angle adjustment block along the rotation axis direction have end faces, and locking holes or locking posts are provided on the end faces along the rotation axis direction.

5. The climbing bracket according to claim 4, characterized in that, concave holes or ball head dowels are provided on the end face of the angle adjustment block along the axial direction of the through hole.

6. The climbing bracket according to claim 2, characterized in that, a boss coaxial with the through hole is provided on the end face of the angle adjustment block.

7. The climbing bracket according to any one of claims 1 to 6, characterized in that, positioning holes and / or positioning posts are provided on the fitting plane.

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