Pitching adjusting mechanism and hanger

Abstract

The utility model provides a pitching adjusting mechanism and a hanging frame. The pitching adjusting mechanism is used for adjusting the pitching angle of the hanging frame; the pitching adjusting mechanism comprises an adjusting hole and an adjusting rod, the adjusting hole comprises at least two adjusting sub-holes formed in the front-back direction of the pitching adjusting mechanism, the distance between the circle centers of every two adjacent adjusting sub-holes is smaller than the diameter of each adjusting sub-hole, and the different adjusting sub-holes correspond to different pitching angles; the adjusting rod is provided with a flat part, the flat part comprises a cylindrical surface and planes located on the two opposite sides of the cylindrical surface, the diameter of the cylindrical surface is equal to that of the adjusting sub-holes, and the distance between the two planes is smaller than or equal to the width of the communicating position of every two adjacent adjusting sub-holes; when the adjusting rod rotates to the first position, the adjusting rod can penetrate through the communicating position of every two adjacent adjusting sub-holes; and when the adjusting rod rotates to the second position, the adjusting rod is locked relative to the adjusting hole. Therefore, according to the hanging frame, stepped adjustment of the pitching angle can be achieved, and reliable locking is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display device installation field especially relates to a pitch adjusting mechanism and hang rack. BACKGROUND

[0002] Display devices such as flat panel televisions and flat panel displays have been widely used due to their high definition, large screen, light weight and other advantages. The existing display devices such as flat panel televisions or flat panel displays are generally installed on the wall by using a wall-mounted rack, thereby saving space. However, the existing wall-mounted racks generally adjust the pitch angle by using a stepless adjustment mode, but this stepless adjustment mode has poor locking effect. SUMMARY

[0003] Therefore, the pitch adjusting mechanism and the hang rack can solve the above technical problems.

[0004] In a first aspect, the utility model provides a pitch adjusting mechanism, which comprises a first component and a second component, a first connecting hole and a second connecting hole are arranged on a first side wall of the first component, a first fulcrum hole and an adjusting hole are arranged on a second side wall of the second component, the adjusting hole comprises at least two adjusting sub-holes arranged along the front-back direction of the pitch adjusting mechanism, the distance between the centers of adjacent two adjusting sub-holes is smaller than the diameter of the adjusting sub-hole, and different adjusting sub-holes correspond to different pitch angles.

[0005] The pitch adjusting mechanism further comprises a connecting piece and an adjusting rod, the connecting piece is connected between the first connecting hole and the first fulcrum hole, and the adjusting rod is arranged between the adjusting hole and the second connecting hole.

[0006] A flat part is arranged on the adjusting rod, the flat part comprises a cylindrical surface and two planes located on the opposite sides of the cylindrical surface, the diameter of the cylindrical surface is equal to the diameter of the adjusting sub-hole, and the distance between the two planes is smaller than or equal to the width of the connecting part of adjacent two adjusting sub-holes.

[0007] When the adjusting rod is rotated to a first position, the adjusting rod can pass through the connecting part of adjacent two adjusting sub-holes.

[0008] When the adjusting rod is rotated to a second position, the adjusting rod is locked relative to the adjusting hole.

[0009] In some possible embodiments of the first aspect, the adjusting hole is an arc-shaped strip hole with the first fulcrum hole as the center.

[0010] In some possible embodiments of the first aspect, the extended lines of adjacent two adjusting sub-holes are arranged in intersecting mode to form a convex part.

[0011] In some possible embodiments of the first aspect, the pitch adjustment mechanism further comprises a wrench located on the outer side of the second side wall of the second member and rotationally connected with the flat portion of the adjustment rod, and the adjustment rod is driven to rotate between the first position and the second position by the wrench.

[0012] In some possible embodiments of the first aspect, the rotation angle of the wrench ranges from 0 to 90 degrees.

[0013] In some possible embodiments of the first aspect, the adjustment rod further comprises a round rod portion connected with the flat portion, and the pitch adjustment mechanism further comprises a rotation limiting piece, the rotation limiting piece comprising a rotating piece and a limiting column, the rotating piece being connected with the round rod portion, and the limiting column being fixed on the surface of the side of the first member facing the second member, and the rotation angle of the adjustment rod relative to the second member being defined by the cooperation between the rotating piece and the limiting column.

[0014] In some possible embodiments of the first aspect, the rotation limiting piece further comprises a fixing piece fixed on the surface of the side of the first member facing the second member, the fixing piece being provided with a through hole in the length direction parallel to the adjustment rod, the round rod portion being inserted into the through hole, and the limiting column being provided on the surface of the fixing piece, the rotating piece being provided with a first limiting portion and a second limiting portion, the limiting column being in engagement with the first limiting portion when the adjustment rod is rotated to the first position, and the limiting column being in engagement with the second limiting portion when the adjustment rod is rotated to the second position.

[0015] In some possible embodiments of the first aspect, the rotating piece comprises a circular ring portion and a first extending portion and a second extending portion extending outwardly from the circular ring portion in the radial direction, the first extending portion and the circular ring portion defining the first limiting portion, and the second extending portion and the circular ring portion defining the second limiting portion.

[0016] In some possible embodiments of the first aspect, the pitch adjustment mechanism further comprises an abutting piece sleeved on the round rod portion, and the opposite ends of the abutting piece abut against the second side wall of the second member and the fixing piece, respectively.

[0017] In some possible embodiments of the first aspect, the outer surface of the second side wall of the second member is provided with a scale mark corresponding to the position of the adjustment hole, and the pitch adjustment mechanism further comprises a pointer piece connected between the first member and the second member, the pointer piece indicating the pitch angle of the second member relative to the first member in combination with the scale mark when the first member has a different pitch angle relative to the second member.

[0018] In some possible embodiments of the first aspect, the pointer comprises a connecting portion, a plug-in portion and an indication arrow, the connecting portion is connected to the first member, the plug-in portion is connected between the connecting portion and the indication arrow, the plug-in portion is plugged on the first side wall of the first member and the second side wall of the second member provided with the adjusting hole, and the indication arrow is located on the outer surface of the second side wall of the second member provided with the adjusting hole and points to the scale mark.

[0019] In some possible embodiments of the first aspect, the plug-in portion is in a U shape, the connecting portion is connected to one arm of the plug-in portion, and the connecting portion is connected to the top surface of the second member.

[0020] In some possible embodiments of the first aspect, the pointer is a ratchet mechanism, the pointer comprises a spring pin assembly and a clamping member, the clamping member is fixed to the second side wall of the second member, the clamping member is provided with at least two clamping teeth, different clamping teeth correspond to different pitch angles, the spring pin assembly is fixed to the first side wall of the first member, and when the second member has different pitch angles relative to the first member, the spring pin assembly is engaged with the corresponding clamping teeth to indicate the pitch angle of the second member relative to the first member.

[0021] In some possible embodiments of the first aspect, the spring pin assembly comprises a resilient abutting member and a spring pin, one end of the resilient abutting member is fixed to the first side wall of the first member, the other end of the resilient abutting member is connected to one end of the spring pin, and the end of the spring pin facing the clamping teeth can be engaged with the clamping teeth.

[0022] In some possible embodiments of the first aspect, the clamping teeth and the end of the spring pin facing the clamping teeth are both in a sharp angle shape.

[0023] In some possible embodiments of the first aspect, the resilient abutting member comprises a spring seat and a first spring, the spring seat is fixed to the first side wall of the first member, the spring seat is provided with a receiving groove and an abutting column in the receiving groove on the side facing the inner side surface of the first side wall of the first member, the spring pin is provided with a strip-shaped hole extending along the height direction of the pitch adjusting mechanism, the abutting column is plugged in the strip-shaped hole, and the first spring is also located in the strip-shaped hole and abuts between the abutting column and the top end of the strip-shaped hole.

[0024] In some possible embodiments of the first aspect, the openings of the first member and the second member are oppositely arranged, the pitch adjustment mechanism further comprises a rotating shaft pivotally connected between a first side wall of the first member and a second side wall of the second member, the pitch adjustment mechanism comprises an elastic abutting member arranged between the first member and the second member, the elastic abutting member and the adjustment rod are respectively located on opposite sides of the rotating shaft, and an elastic restoring force of the elastic abutting member is used to offset at least part of gravity of the display device.

[0025] In a second aspect, the application provides a hanging rack, comprising a wall plate, a support arm, a pitch adjustment mechanism, a panel and a hanging piece.

[0026] The wall plate is arranged on a wall.

[0027] One end of the support arm is pivotally connected to the wall plate.

[0028] The pitch adjustment mechanism is connected between the other end of the support arm and the panel.

[0029] The hanging piece is fixedly connected to a back surface of a display device and hung on the panel, and the pitch adjustment mechanism is the pitch adjustment mechanism as described in the first aspect.

[0030] In some possible embodiments of the second aspect, the hanging rack further comprises a horizontal adjustment mechanism, the horizontal adjustment mechanism comprises a horizontal adjustment plate, a first connecting piece and a second connecting piece, one side of the horizontal adjustment plate is connected to the other end of the support arm, the horizontal adjustment plate comprises a second fulcrum hole and an arc-shaped hole, the arc-shaped hole has the second fulcrum hole as a center, the first connecting piece is connected to the first member through the second fulcrum hole, and the second connecting piece is connected to the first member through the arc-shaped hole.

[0031] In some possible embodiments of the first aspect, a clamping groove is arranged at an edge position of the wall plate, the clamping groove is used to clamp a clamping protrusion at an edge position of a multimedia plate, and / or the clamping groove has a semicircular shape.

[0032] Therefore, in the present application, the first position refers to the position in which the two planes of the flat part of the adjusting rod are generally directed towards the circular arc surface of the adjusting sub-hole, and thus when the adjusting rod is rotated to the first position, the flat part of the adjusting rod can pass through the connection of the two adjacent adjusting sub-holes, and thus the adjusting rod can be adjusted in the adjusting hole along the front-back direction of the pitch adjusting mechanism to adjust the pitch angle of the second member relative to the first member; the second position refers to the position in which the two planes of the flat part of the adjusting rod are generally directed towards the connection of the two adjacent adjusting sub-holes, and thus when the adjusting rod is rotated to the second position, the cylindrical surface of the flat part of the adjusting rod is adapted to the circular arc surface of the adjusting sub-hole, and the plane of the flat part of the adjusting member is directed towards the connection of the two adjacent adjusting sub-holes, and the adjusting rod cannot pass through the connection of the two adjacent adjusting sub-holes, and thus the adjusting rod is locked relative to the adjusting hole. Therefore, the hanger of the present application can realize step adjustment of the pitch angle and is easy to lock, and when the pitch adjusting mechanism is locked, the pitch angle of the hanger will not change under the action of the gravity force of the display device, and the locking reliability of the pitch angle of the hanger after adjustment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of the three-dimensional structure of the hanger for mounting the display device in the embodiment of the present application;

[0034] Figure 2 It is a schematic diagram of the display state of the hanger for mounting the display device in another direction in the embodiment of the present application;

[0035] Figure 3 It is a schematic diagram of the folding state of the hanger for mounting the display device in another direction in the embodiment of the present application;

[0036] Figure 4 It is a schematic diagram of the three-dimensional structure of the pitch adjusting mechanism in the first embodiment of the present application;

[0037] Figure 5 It is an exploded schematic diagram of Figure 4 ;

[0038] Figure 6 It is an exploded schematic diagram of part of the assembly of the pitch adjusting mechanism in the embodiment of the present application;

[0039] Figure 7 It is an exploded and partially enlarged schematic diagram of the pitch adjusting mechanism in Figure 4 ;

[0040] Figure 8 It is a schematic diagram of the assembly structure of the first member and the pointer member in another direction in Figure 7 ;

[0041] Figure 9 It is an exploded and partially enlarged schematic diagram of the tilt adjusting mechanism in the embodiment of the present application;

[0042] Figure 10 is a structural schematic view of a structure in which the pitch angle of the second member relative to the first member is 0 degree in the embodiment of the present application;

[0043] Figure 11 is a structural schematic view of a structure in which the pitch angle of the second member relative to the first member is +5 degrees in the embodiment of the present application;

[0044] Figure 12 is a structural schematic view of a structure in which the pitch angle of the second member relative to the first member is -15 degrees in the embodiment of the present application;

[0045] Figure 13 is a three-dimensional structural schematic view of the pitch adjusting mechanism in the second embodiment of the present application;

[0046] Figure 14 is an exploded schematic view of Figure 13 ;

[0047] Figure 15 is a three-dimensional structural schematic view of Figure 14 in another direction;

[0048] Figure 16 is a three-dimensional structural schematic view of Figure 14 in yet another direction;

[0049] Figure 17 is an exploded and partially enlarged schematic view of the pitch adjusting mechanism in Figure 13 ;

[0050] Figure 18 is a three-dimensional structural schematic view of the pylon in which the pitch angle is 0 degree in the second embodiment of the present application;

[0051] Figure 19 is a three-dimensional structural schematic view of the pylon in which the pitch angle is +5 degrees in the second embodiment of the present application;

[0052] Figure 20 is a three-dimensional structural schematic view of the pylon in which the pitch angle is -15 degrees in the second embodiment of the present application;

[0053] Figure 21 is an exploded schematic view of the elastic abutting member in the tilt adjusting mechanism in the embodiment of the present application;

[0054] Figure 22 illustrates a pitch angle range schematic view of the second member relative to the first member;

[0055] Figure 23 illustrates a schematic view in which the second member is pitched upward by 5 degrees relative to the first member;

[0056] Figure 24A diagram illustrating the second member inclined 15 degrees downward relative to the first member;

[0057] Figure 25 A diagram illustrating the disassembly of the wallboard in the embodiment of the present application;

[0058] Figure 26 A diagram illustrating the structure and installation of the multimedia board in the embodiment of the present application;

[0059] Figure 27 A diagram illustrating the fitting connection between the multimedia board and the wallboard in the embodiment of the present application;

[0060] Figure 28 A diagram illustrating the fitting connection between the different edges of the multimedia board and the wallboard in the embodiment of the present application;

[0061] Figure 29 A diagram illustrating the disassembly of the support arm in the embodiment of the present application;

[0062] Figure 30 A diagram illustrating the disassembly of the second member and the horizontal adjustment mechanism in the embodiment of the present application;

[0063] Figure 31 A diagram illustrating the disassembly of the panel in the embodiment of the present application;

[0064] Figure 32 A diagram illustrating the disassembly of the hanging piece in the embodiment of the present application. DETAILED DESCRIPTION

[0065] Embodiments of the present application are described in detail below with reference to the attached drawings. The embodiments of the present application described below are examples and are intended to explain the present application, and should not be understood as limiting the present application.

[0066] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0067] In the present application, unless otherwise explicitly specified and limited, the terms "connected", "fixed" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0068] Please refer to Figure 1 , Figure 1 is a schematic diagram of the three-dimensional structure of the hanging rack 100 for mounting the display device in the embodiment of the present application. For the convenience of description, it is defined that Figure 1 The front-rear direction of the hanging rack 100 shown in the figure is the Y-axis direction, that is, the thickness direction, the left-right direction is the X-axis direction, that is, the length direction, and the height direction is the Z-axis direction. The "top", "bottom", "left" and "right" and other orientation words mentioned in the description of the hanging rack 100 in the embodiment of the present application are described according to the orientation shown in the drawing of the specification, that is, the positive direction of the Z-axis is "top", the negative direction of the Z-axis is "bottom", the negative direction of the X-axis is "left", the positive direction of the X-axis is "right", the negative direction of the Y-axis is "back", and the positive direction of the Y-axis is "front". It does not form a limitation on the hanging rack 100 in the actual application scenario. In the embodiment, the display device is a television set. In other embodiments, the display device can also be a display or other device with a display screen, which is not limited here. Figure 1

[0069] Please refer to Figure 1 and Figure 2 , Figure 2 is a schematic diagram of the display state of the hanging rack 100 for mounting the display device in another direction in the embodiment of the present application. The hanging rack 100 includes a wall plate 1. The wall plate 1 is used to be mounted on a wall, wherein the wall can be but not limited to a wooden column gypsum board wall, a reinforced concrete wall, a brick-concrete structure wall, etc., and can also be a cabinet plate mounted on the wall, etc. As shown in Figure 1 and Figure 2 , the wall plate 1 includes a rectangular frame 11 and a connecting plate 12, wherein the rectangular frame 11 includes an upper wall plate 111 and a lower wall plate 112, the upper wall plate 111 and the lower wall plate 112 are arranged in parallel, and a plurality of mounting holes are respectively arranged on the upper wall plate 111 and the lower wall plate 112 Figure 1 and Figure 2 ​The mounting member is inserted into the mounting hole and is nailed into the wall, so that the wallboard 1 can be fixed to the wall. The connecting plate 12 is arranged in the rectangular frame 11 and is connected between the upper wallboard 111 and the lower wallboard 112 of the rectangular frame 11. It can be understood that in other embodiments, the wallboard 1 can have other structures, for example, the wallboard 1 can also be a split wallboard, that is, a double wallboard structure, which is not limited herein.

[0070] The hanging rack 100 further comprises a support arm 2. One end of the support arm 2 is pivotally connected to the wallboard 1. As shown in Figure 1 and Figure 2 , the support arm 2 has a two-segment structure, which specifically comprises a rear support arm 21 and a front support arm 22. One end of the rear support arm 21 is pivotally connected to the connecting plate 12 of the wallboard 1, and the other end is pivotally connected to one end of the front support arm 22. The central axes of the pivot shafts of the rear support arm 21 and the front support arm 22 are parallel to the height direction Z.

[0071] In this embodiment, the hanging rack 100 comprises two support arms 2, each of which comprises a rear support arm 21 and a front support arm 22, and the rear support arms 21 of the two support arms 2 are respectively pivotally connected to different positions of the connecting plate 12 in the left-right direction (X-axis direction). In other embodiments, the support arm 2 can be one, which is not limited herein.

[0072] In this embodiment, each support arm 2 comprises two rear support arms 21 and one front support arm 22, and one end of each of the two rear support arms 21 of each support arm 2 is respectively pivotally connected to different positions of the connecting plate 12 in the height direction (Z-axis direction), and one end of the front support arm 22 is respectively pivotally connected to the other end of the two rear support arms 21 on the opposite sides in the height direction. In other embodiments, each support arm 2 can comprise one rear support arm 21 and one front support arm 22, and thus the number of the rear support arms 21 and the front support arms 22 is not limited herein.

[0073] The hanging rack 100 further comprises a pitch adjusting mechanism 3, a panel 4 and a hanging piece 5. The pitch adjusting mechanism 3 is connected between the other end of the support arm 2 and the panel 4. The hanging piece 5 is used to be fixedly connected to the back of the display device and is hung on the panel 4.

[0074] When the hanging rack 100 comprises two support arms 2, the other ends of the two support arms 2 are respectively connected to the pitch adjusting mechanism 3.

[0075] When each support arm 2 comprises two rear support arms 21 and one front support arm 22, the other ends of the front support arms 22 of the two support arms 2 are respectively connected to the pitch adjusting mechanism 3.

[0076] As shown in Figure 1 and Figure 2 , the pitch adjusting mechanism 3 comprises a pitch adjusting mechanism body 31 and a pitch adjusting mechanism cover 32. The pitch adjusting mechanism body 31 is connected to the other end of the support arm 2, and the pitch adjusting mechanism cover 32 is connected to the panel 4.As shown, the panel 4 is substantially rectangular, comprising an upper horizontal bar 41 and a lower horizontal bar 42. The upper horizontal bar 41 and the lower horizontal bar 42 are arranged in parallel.

[0077] As shown, the hanging piece 5 is provided with a hook 51. The hook 51 is hung on the upper horizontal bar 41.

[0078] As shown, the hanging piece 5 is further locked on the lower horizontal bar 42.

[0079] As shown in Figure 2 and Figure 3 As shown in Figure 2 As shown, the hanger 100 is in an unfolded state, as shown in Figure 3 As shown, the hanger 100 is in a folded state. As can be seen from Figure 3 , when the hanger 100 is in a folded state, the rear support arm 21 and the front support arm 22 are completely attached, so that the thickness of the hanger 100 in the front and rear directions can be reduced when the hanger 100 is in a folded state.

[0080] As shown in Figure 4 and Figure 5 , Figure 4 is a perspective view of the pitch adjusting mechanism 3 in the first embodiment of the present application, Figure 5 is an exploded view of Figure 4 . As shown in Figure 4 and Figure 5 , the pitch adjusting mechanism 3 comprises a first member 31 and a second member 32, the first side wall 311 of the first member 31 is provided with a first connecting hole 312 and a second connecting hole 313, the second side wall 321 of the second member 32 is provided with a first fulcrum hole 323 and an adjusting hole 322, the adjusting hole 322 comprises at least two adjusting sub-holes 322a arranged along the front and rear directions of the pitch adjusting mechanism 3, the distance between the centers of the adjacent two adjusting sub-holes 322a is less than the diameter of the adjusting sub-hole 322a, and different adjusting sub-holes 322a correspond to different pitch angles.

[0081] The pitch adjusting mechanism 3 further comprises a connecting piece 33 and an adjusting rod 34, the connecting piece 33 is connected between the first connecting hole 312 and the first fulcrum hole 323, and the adjusting rod 34 is arranged between the adjusting hole 322 and the second connecting hole 313.

[0082] The adjusting rod 34 is provided with a flat portion 341, the flat portion 341 comprises a cylindrical surface 341a and two planes 341b located on opposite sides of the cylindrical surface 341a, the diameter of the cylindrical surface 341a is equal to the diameter of the adjusting sub-hole 322a, and the distance between the two planes 341b is less than or equal to the width of the connecting portion of the adjacent two adjusting sub-holes 322a.

[0083] When the adjusting rod 34 is rotated to a first position, the adjusting rod 34 can pass through the connecting portion of the adjacent two adjusting sub-holes 322a.

[0084] When the adjusting rod 34 is rotated to the second position, the adjusting rod 34 is locked relative to the adjusting hole 322.

[0085] Therefore, in the present application, the first position refers to the position where the two planes 341b of the flat part 341 of the adjusting rod 34 are generally directed to the arc surface of the adjacent two adjusting sub-holes 322a, and thus when the adjusting rod 34 is rotated to the first position, the flat part 341 of the adjusting rod 34 can pass through the connection part of the adjacent two adjusting sub-holes 322a, and thus the adjusting rod 34 can be slid along the front-back direction of the pitch adjusting mechanism 3 in the adjusting hole 322 to adjust the pitch angle (the angle of rotation around the X axis) of the second member 32 relative to the first member 31; the second position refers to the position where the two planes 341b of the flat part 341 of the adjusting rod 34 are generally directed to the connection part of the adjacent two adjusting sub-holes 322a, and thus when the adjusting rod 34 is rotated to the second position, the cylindrical surface 341a of the flat part 341 of the adjusting rod 34 is adapted to the arc surface of the adjusting sub-hole 322a, and the plane 341b of the flat part 341 of the adjusting rod 34 is directed to the connection part of the adjacent two adjusting sub-holes 322a, the adjusting rod 34 cannot pass through the connection part of the adjacent two adjusting sub-holes 322a, and thus the adjusting rod 34 is locked relative to the adjusting hole 322. Therefore, the hanging rack 100 of the present application can realize step adjustment of the pitch angle and is easy to lock, and when the pitch adjusting mechanism 3 is locked, the pitch angle of the hanging rack 100 will not change under the action of the gravity of the display device, and the locking reliability of the pitch angle of the hanging rack 100 after adjustment is improved.

[0086] In some embodiments, the front-back direction of the pitch adjusting mechanism 3 is generally parallel to the Y axis direction of the hanging rack 100.

[0087] In some embodiments, the diameters of the at least two adjusting sub-holes 322a are the same, and the width of the connection part of the adjacent two adjusting sub-holes 322a is smaller than the diameter of the adjusting sub-hole 322a.

[0088] In some embodiments, the first connecting hole 312 and the second connecting hole 313 are arranged on the first side wall 311 of the first member 31 along the height direction of the hanging rack 100, and the first connecting hole 312 is located below the second connecting hole 313.

[0089] In some embodiments, the first supporting point hole 323 and the adjusting hole 322 are arranged on the second side wall 321 of the second member 32 along the height direction of the hanging rack 100, and the first supporting point hole 323 is located below the adjusting hole 322.

[0090] In some embodiments, the pitch angle refers to the angle of rotation of the panel 4 around the X axis direction relative to the wall plate 1.

[0091] In some embodiments, as shown in FIG. 1, the pitch adjusting mechanism 3 comprises a first member 31 and a second member 32, and the first member 31 and the second member 32 are connected to each other through a pitch adjusting mechanism 3. Figure 4and Figure 5 As shown, the at least two adjustment sub-holes 322a include five adjustment sub-holes 322a, which correspond to -15 degrees, -10 degrees, -5 degrees, 0 degrees, and +5 degrees from front to back, respectively. It can be understood that in other embodiments, the number of adjustment sub-holes 322a and the corresponding tilt adjustment angles of the adjustment sub-holes 322a can be adjusted as needed, which is not limited herein.

[0092] In some embodiments, the first member 31 is a large square plate, and the second member 32 is a connecting plate. The first member 31 includes a first plate body 310 and first side walls 311 connected to opposite sides of the first plate body 310, and the second member 32 includes a second plate body 320 and second side walls 321 connected to opposite sides of the second plate body 320. The opening of the first member 31 and the opening of the second member 32 are oppositely arranged, and the two first side walls 311 of the first member 31 can be embedded between the two second side walls 321 of the second member 32, so that the thickness dimension of the pitch adjustment mechanism 3 in the Y-axis direction of the hanger 100 can be reduced.

[0093] In some embodiments, the top end and the bottom end of the second side wall 321 are respectively provided with a first through hole 325 and a second through hole 326, and the upper cross bar 41 of the panel 4 is threaded through the first through hole 325, and the lower cross bar 42 of the panel 4 is threaded through the second through hole 326. Moreover, the second member 32 can slide on the upper cross bar 41 and the lower cross bar 42 along the X-axis direction of the hanger 100, so that the horizontal position of the display device relative to the hanger 100 can be adjusted.

[0094] In some embodiments, the adjustment hole 322 is provided on one of the second side walls 321, the adjustment hole 322 has an arc, the adjustment hole 322 is an arc-shaped strip hole with the first fulcrum hole 323 as the center, and is located between the first through hole 325 and the second through hole 326. The other second side wall 321 is provided with a first arc-shaped hole 327 at a position corresponding to the adjustment hole 322, and is provided with a circular hole 328 at a position corresponding to the first fulcrum hole 323. Correspondingly, the first side wall 311 is provided with a third connecting hole (not shown in the figure) and a fourth connecting hole (not shown in the figure) corresponding to the height direction (Z-axis direction). One of the connecting members 33 is connected between the circular hole 328 and the third connecting hole, and the other connecting member 33 is connected between the first arc-shaped hole 327 and the fourth connecting hole.

[0095] Therefore, the adjustment hole 322 has an arc, the adjustment hole 322 is an arc-shaped strip hole with the first fulcrum hole 323 as the center, and the sliding between the adjustment hole 322 and the adjustment rod 34 is smoother when adjusting the pitch angle.

[0096] It can be understood that the above connecting piece 33 is a matching structure of a screw rod and a nut, so that locking can be performed when locking is required, and the nut can be loosened to adjust the pitch angle, and the pitch angle is adjusted and locked again when the pitch angle needs to be adjusted.

[0097] In some embodiments, the two second side walls 321 can each be provided with an adjustment hole 322 and a first fulcrum hole 323, which are not limited herein.

[0098] In some embodiments, as shown in Figure 5 Because the adjustment hole 322 and the first arc-shaped hole 327 are strip-shaped, a preset length needs to be met in the front-rear direction (Y-axis direction) of the hanger 100, therefore, the position of the first side wall 311 corresponding to the adjustment hole 322 protrudes to the rear side along the front-rear direction of the hanger 100 compared to other positions, and the position of the second side wall 321 corresponding to the first arc-shaped hole 327 protrudes to the rear side along the front-rear direction of the hanger 100 compared to other positions.

[0099] Therefore, this partially protruding structure can make the size of other regions of the second side wall 321 of the second member 32 in the front-rear direction of the hanger 100 smaller, and can make the second member 32 more miniaturized.

[0100] In some embodiments, please refer to Figure 5 again, the circular arc extension lines of the two adjacent adjustment sub-holes 322a are cross arranged to form a protruding part 322b, that is, one protruding part 322b is formed between every two adjacent adjustment sub-holes 322a. When the adjustment rod 34 cooperates with one of the adjustment sub-holes 322a and the adjustment rod 34 is rotated to the second position, the protruding part 322b can block the sliding of the adjustment rod 34 in the adjustment hole 322 along the length direction of the adjustment hole 322, so that reliable locking can be achieved. The length direction of the adjustment hole 322 is substantially parallel to the Y-axis direction of the hanger 100.

[0101] In some embodiments, the pitch adjustment mechanism 3 further comprises a wrench 30, which is located on the outer side of the second side wall 321 of the second member 32 provided with the adjustment hole 322 and is rotationally connected with the flat part 341 of the adjustment rod 34, and the wrench 30 drives the adjustment rod 34 to rotate between the first position and the second position.

[0102] Therefore, the wrench 30 can more conveniently drive the rotation of the adjustment rod 34 and is more labor-saving. It can be understood that in other embodiments, a key matched with the flat part 341 of the adjustment rod 34 can be used to rotate the adjustment rod 34. Therefore, the wrench 30 can be omitted.

[0103] In some embodiments, when the adjusting rod 34 is rotated to the first position, the two planes 341b of the flat portion 341 of the adjusting rod 34 are substantially directed to the position of the arc surface of the adjusting sub-hole 322a, and when the adjusting rod 34 is rotated to the second position, the two planes 341b of the flat portion 341 of the adjusting rod 34 are substantially directed to the position of the connection of the two adjacent adjusting sub-holes 322a. Therefore, the rotation angle range of the wrench 30 is 0-90 degrees.

[0104] Therefore, compared with the prior art, in which the wrench 30 needs to be rotated several rounds to achieve locking, in the present application, the wrench 30 only needs to be rotated by 90 degrees to achieve locking, and the operation is more simple and convenient.

[0105] In some embodiments, referring to Figure 6 and Figure 7 , Figure 6 is an exploded view of part of the pitch adjusting mechanism 3 in the embodiments of the present application. Figure 7 is Figure 4 is an exploded view and a partially enlarged view of the pitch adjusting mechanism 3 in Figure 4 . The adjusting rod 34 further comprises a round rod portion 342 connected to the flat portion 341, and the pitch adjusting mechanism 3 further comprises a rotation limiting member 35, which comprises a rotating member 351 and a limiting column 352. The rotating member 351 is connected to the round rod portion 342, and the limiting column 352 is fixed to the surface of the first member 31 on the side facing the second member 32. The cooperation of the rotating member 351 and the limiting column 352 limits the rotation angle range of the adjusting rod 34 relative to the second member 32.

[0106] Therefore, since the limiting column 352 of the rotation limiting member 35 is fixed to the first member 31, and the first member 31 has no degree of freedom in the direction of rotation around the X axis (pitch), the rotation angle range of the rotating member 351 can be limited by the limiting column 352, and the rotation angle range of the adjusting rod 34 can be limited in turn, so as to avoid that the adjusting rod 34 is rotated by too large an angle and affects the operation.

[0107] In some embodiments, referring to Figure 6 and Figure 7 , the rotation limiting member 35 further comprises a fixed member 353, which is fixed to the surface of the first member 31 on the side facing the second member 32. The fixed member 353 is provided with a through hole 353a along the length direction parallel to the adjusting rod 34, and the round rod portion 342 is inserted into the through hole 353a. The limiting column 352 is provided on the surface of the fixed member 353. The rotating member 351 is provided with a first limiting portion 351a and a second limiting portion 351b. When the limiting column 352 is engaged with the first limiting portion 351a, the adjusting rod 34 is rotated to the first position, and when the limiting column 352 is engaged with the second limiting portion 351b, the adjusting rod 34 is rotated to the second position.

[0108] Therefore, the application adopts the mode of arranging the limiting column 352 on the fixed connecting piece 353, and the fitting relationship between the limiting column 352 and the rotating piece 351 can be more stable and reliable. It should be understood that in other embodiments, the limiting column 352 can extend to the surface of the first component 31 and be fixed on the surface of the first component 31, which is not limited herein.

[0109] In the embodiment, the fixed connecting piece 353 is substantially L-shaped, and the fixed connecting piece 353 includes a first plate portion 353b and a second plate portion 353c, which are arranged substantially perpendicularly. The first plate portion 353b is fixed on the first disc body 310 of the first component 31, and the second plate portion 353c is substantially parallel to the second side wall 321. The second plate portion 353c is provided with a through hole 353a along the length direction parallel to the adjusting rod 34. The limiting column 352 is arranged on the surface of the second plate portion 353c away from the second side wall 321. The limiting column 352 is a column body protruding from the surface of the second plate portion 353c away from the second side wall 321. It can be understood that the limiting column 352 is arranged on the rotating path of the rotating piece 351, so as to limit the rotation angle of the rotating piece 351.

[0110] In some embodiments, referring again to Figure 6 , the rotating piece 351 includes a circular ring portion 351c, and a first extending portion 351d and a second extending portion 351e located at two different positions of the circular ring portion 351c and extending outward along the radial direction of the circular ring portion 351c, and the first extending portion 351d and the circular ring portion 351c form a first limiting portion 351a, and the second extending portion 351e and the circular ring portion 351c form a second limiting portion 351b. Therefore, the first limiting portion 351a and the second limiting portion 351b are substantially V-shaped, and the V-shaped openings of the first limiting portion 351a and the second limiting portion 351b are arranged oppositely. A segment of circular arc between the V-shaped openings of the first limiting portion 351a and the second limiting portion 351b is the rotating stroke of the rotating piece 351. Therefore, the rotating stroke of the rotating piece 351 can be adjusted by adjusting the size of the arc length between the first limiting portion 351a and the second limiting portion 351b. In the embodiment, the rotating stroke of the rotating piece 351 is 90 degrees.

[0111] In some embodiments, referring again to Figure 6 and Figure 7 , the pitch adjusting mechanism 3 further includes an abutting piece 36, the abutting piece 36 is sleeved on the circular rod portion 342, and opposite ends of the abutting piece 36 abut between the second side wall 321 of the second component 32 and the fixed connecting piece 353, respectively.

[0112] In the embodiment, the abutting piece 36 is cylindrical, and a through hole is arranged at the middle position. The circular rod portion 342 is inserted into the through hole of the abutting piece 36.

[0113] It can be understood that the shape of the abutting member 36 is not limited to a cylindrical shape in other embodiments, but can also be a prism, a square column or other shapes, which are not limited herein.

[0114] Therefore, the abutting member 36 provides a support force for the fixing member 353, so that the fixing member 353 is more stable and reliable in installation.

[0115] In some embodiments, referring again to Figure 5 , the second side wall 321 of the second member 32 is provided with a scale mark 324 at a position corresponding to the adjusting hole 322 on the outer surface of the second side wall 321, and the scale mark 324 is used to identify the pitch angle, for example, -15 degrees, -10 degrees, -5 degrees, 0 degrees, +5 degrees. The pitch adjusting mechanism 3 further comprises a pointer member 37 connected between the first member 31 and the second member 32, and when the first member 31 has different pitch angles relative to the second member 32, the pointer member 37 indicates the pitch angle of the second member 32 relative to the first member 31 in combination with the scale mark 324.

[0116] Therefore, in the present application, the adjusting hole 322 is a stepped adjusting hole, and the adjusting rod 34 needs to cooperate with any one of the adjusting sub-holes 322a of the adjusting hole 322 to limit the pitch angle of the second member 32 relative to the first member 31, and only when the center of the flat portion 341 of the adjusting rod 34 coincides with the center of any one of the adjusting sub-holes 322a of the adjusting hole 322, the adjusting rod 34 can be rotated, so that the cylindrical surface 341a of the flat portion 341 of the adjusting rod 34 is adapted to the arc surface of the adjusting sub-hole 322a, and the flat surface 341b of the flat portion 341 of the adjusting member faces the connection between the adjacent two adjusting sub-holes 322a, the adjusting rod 34 cannot pass through the connection between the adjacent two adjusting sub-holes 322a, and the adjusting rod 34 is locked relative to the adjusting hole 322. Therefore, if the center of the flat portion 341 of the adjusting rod 34 does not coincide with the center of any one of the adjusting sub-holes 322a of the adjusting hole 322, the adjusting rod 34 cannot be rotated by the wrench 30 due to the interference of the protrusion between the adjacent two adjusting sub-holes 322a. Therefore, the pitch angle of the second member 32 relative to the first member 31 is indicated by the pointer member 37, and whether the center of the flat portion 341 of the adjusting rod 34 coincides with the center of any one of the adjusting sub-holes 322a of the adjusting hole 322 can be determined by the scale indicated by the pointer member 37, for example, the scales corresponding to the five adjusting sub-holes 322a are -15 degrees, -10 degrees, -5 degrees, 0 degrees and +5 degrees, and when the scale indicated by the pointer member 37 is exactly 0 degrees, it can be determined that the center of the flat portion 341 of the adjusting rod 34 coincides with the center of the 0-degree adjusting sub-hole 322a of the adjusting hole 322.

[0117] Please refer to Figure 5 , Figure 7、 Figure 8 and Figure 9 In the first embodiment, the pointer 37 is a structural member fixedly connected to the first member 31 and inserted into the second side wall 321 of the second member 32 provided with the adjusting hole 322. Specifically, the pointer 37 includes a connecting portion 371, an inserting portion 372 and an indicating arrow 373. The connecting portion 371 is connected to the first member 31. The inserting portion 372 is connected between the connecting portion 371 and the indicating arrow 373. The inserting portion 372 is inserted into the first side wall 311 of the first member 31 and the second side wall 321 of the second member 32 provided with the adjusting hole 322. The indicating arrow 373 is located on the second side wall 321 of the second member 32 provided with the adjusting hole 322 and points to the scale mark 324.

[0118] Therefore, in the present application, the structure of the pointer 37 is set such that the pointer 37 can be fixed to the first member 31 and inserted into the first side wall 311 of the first member 31 and the second side wall 321 of the second member 32 provided with the adjusting hole 322, and can point to the scale mark 324 located on the outer surface of the second side wall 321. The structure is simple and reliable.

[0119] In some embodiments, the inserting portion 372 is in a U shape. The connecting portion 371 is perpendicularly connected to one arm of the inserting portion 372. The connecting portion 371 is connected to the top surface of the second member 32. Specifically, the top end of the first disc body 310 of the first member 31 has a convex edge in a planar state. The first side wall 311 of the first member 31 for setting the pointer 37 protrudes a predetermined length along the height direction relative to the convex edge. Therefore, the inserting portion 372 of the pointer 37 can be inserted from the rear of the first side wall 311 into the position where the first side wall 311 protrudes relative to the convex edge. The connecting portion 371 of the pointer 37 is bent and extends from one arm of the inserting portion 372 towards the surface of the convex edge to be fixed to the convex edge. The arm of the inserting portion 372 is fixed to the first side wall 311 of the first member 31. The width between the two arms of the inserting portion 372 is greater than or equal to the sum of the thicknesses of the first side wall 311 and the second side wall 321. Therefore, the second side wall 321 can also be inserted into the U-shaped space of the inserting portion 372, so that the pointer can point to the scale mark 324 located on the outer surface of the second side wall 321.

[0120] Please refer to Figure 10 , Figure 10 Figure 6 is a structural schematic view of the wrench 30 in the present application when the pitch angle of the second member 32 relative to the first member 31 is 0 degree. As shown in the figure, the indicating arrow 373 of the pointer 37 just points to 0 degree. The wrench 30 can be rotated from 0 degree to 90 degree state to realize locking. Figure 10

[0121] Please refer to Figure 11 ,​Figure 11 Fig. 6 is a structural schematic view of the second member 32 relative to the first member 31 in a third embodiment of the present application, in which the pitch angle of the second member 32 relative to the first member 31 is +5 degrees. Figure 11 As shown, the indicating arrow 373 of the pointer member 37 points to +5 degrees, and the wrench 30 can be rotated from 0 degrees to 90 degrees to be locked.

[0122] Please refer to Figure 12 , Figure 12 Fig. 7 is a structural schematic view of the second member 32 relative to the first member 31 in a fourth embodiment of the present application, in which the pitch angle of the second member 32 relative to the first member 31 is -15 degrees. Figure 12 As shown, the indicating arrow 373 of the pointer member 37 points to -15 degrees, and the wrench 30 can be rotated from 0 degrees to 90 degrees to be locked.

[0123] Please refer to Figure 13 and Figure 14 , Figure 13 Fig. 8 is a perspective structural schematic view of the pitch adjusting mechanism 3 in the second embodiment of the present application, Figure 14 Fig. 9 is an exploded schematic view of Figure 13 . As shown in Figure 13 and Figure 14 , in the second embodiment, the pointer member 37 is a ratchet mechanism, the pointer member 37 includes a spring pin assembly 374 and a clamping member 375, the clamping member 375 is fixed on the second side wall 321 of the second member 32, the clamping member 375 is provided with at least two clamping teeth 3751, different clamping teeth 3751 correspond to different pitch angles, the spring pin assembly 374 is fixed on the first side wall 311 of the first member 31, when the second member 32 has different pitch angles relative to the first member 31, the spring pin assembly 374 engages with the corresponding clamping tooth 3751 to indicate the pitch angle of the second member 32 relative to the first member 31.

[0124] Therefore, by the relative position of the wrench 30 in the adjusting hole 322 and the scale mark 324 located at the adjusting hole 322, the pitch angle between the first member 31 and the second member 32 can be roughly judged, combined with the "click" sound when the corresponding clamping tooth 3751 of the spring pin assembly 374 and the clamping member 375 is clamped in place, the current pitch angle between the first member 31 and the second member 32 can be accurately judged. For example, the expected pitch angle between the first member 31 and the second member 32 is +5 degrees, when combined with the relative position of the wrench 30 in the adjusting hole 322 and the scale mark 324 located at the adjusting hole 322, it is judged that the current pitch angle between the first member 31 and the second member 32 has approached the expected angle, combined with the "click" sound when the corresponding clamping tooth 3751 of the spring pin assembly 374 is clamped in place, if the "click" sound is heard, it can be determined that the pitch angle between the first member 31 and the second member 32 has reached the expected angle, and the wrench 30 can be rotated to be locked.

[0125] In some embodiments, referring to Figure 15 , the adjusting rod 34 is arranged on one of the second side walls 321, and the clamping member 375 of the pointer 37 is arranged on the other second side wall 321. In this way, movement interference between the adjusting rod 34 and the pointer 37 can be avoided.

[0126] In some embodiments, referring to Figure 16 and Figure 17 , the elastic pin assembly 374 includes an elastic abutting member 3741 and an elastic pin 3742. One end of the elastic abutting member 3741 is fixed to the first side wall 311 of the first member 31, and the other end of the elastic abutting member 3741 is connected to one end of the elastic pin 3742. The end of the elastic pin 3742 facing the clamping teeth 3751 is capable of engaging with the clamping teeth 3751.

[0127] Thus, the internal space of the first member 31 can be used to arrange the elastic pin assembly 374, and the size of the hanger 100 in the thickness direction can be reduced.

[0128] In some embodiments, the clamping teeth 3751 and the end of the elastic pin 3742 facing the clamping teeth 3751 are both in the shape of a sharp corner.

[0129] Thus, each clamping tooth 3751 includes two intersecting inclined surfaces, which can function as wedge surfaces, thereby guiding the elastic pin 3742 to move out of the clamping space of one clamping tooth 3751 and into the clamping space of another clamping tooth 3751. The end of the elastic pin 3742 facing the clamping teeth 3751 is in the shape of a sharp corner, which can better adapt to the shape of the clamping teeth 3751.

[0130] In some embodiments, the elastic abutting member 3741 includes a spring seat 3741a and a first spring 3741b. The spring seat 3741a is fixed to the inner side of the first side wall 311 of the first member 31. The spring seat 3741a is provided with a receiving groove 3741c and an abutting column located in the receiving groove 3741c on the side facing the inner side of the first side wall 311 of the first member 31. The elastic pin 3742 is provided with a strip-shaped hole 3742a extending along the height direction of the pitch adjusting mechanism 3, the abutting column is inserted into the strip-shaped hole 3742a, and the first spring 3741b is also located in the strip-shaped hole 3742a and abuts between the abutting column and the top end of the strip-shaped hole 3742a.

[0131] Thus, the spring seat 3741a and the first spring 3741b provide the elastic pin 3742 with an elastic force to move out of the clamping space of one clamping tooth 3751 and into the clamping space of another clamping tooth 3751, and the structure is stable and reliable.

[0132] Referring to Figure 18 ,Figure 18 Fig. 6 is a perspective view of the mounting rack 100 in the second embodiment of the present application, showing the mounting rack 100 in a horizontal position, i.e. the pitch angle of the mounting rack 100 is 0 degree. Figure 18 As can be seen, when the pitch angle between the first member 31 and the second member 32 is 0 degree, the elastic pin 3742 is just engaged in the engaging tooth 3751 of the engaging member 375 corresponding to 0 degree.

[0133] Please refer to Figure 19 , Figure 19 Fig. 7 is a perspective view of the mounting rack 100 in the second embodiment of the present application, showing the mounting rack 100 in a position with a pitch angle of +5 degrees. Figure 19 As can be seen, when the pitch angle between the first member 31 and the second member 32 is +5 degrees, the elastic pin 3742 is just engaged in the engaging tooth 3751 of the engaging member 375 corresponding to +5 degrees.

[0134] Please refer to Figure 20 , Figure 20 Fig. 8 is a perspective view of the mounting rack 100 in the second embodiment of the present application, showing the mounting rack 100 in a position with a pitch angle of -15 degrees. Figure 20 As can be seen, when the pitch angle between the first member 31 and the second member 32 is -15 degrees, the elastic pin 3742 is just engaged in the engaging tooth 3751 of the engaging member 375 corresponding to -15 degrees.

[0135] In some embodiments, please refer to Figure 15 and Figure 21 , the opening of the first member 31 and the opening of the second member 32 are oppositely arranged, and the two first side walls 311 of the first member 31 can be embedded between the two second side walls 321 of the second member 32, the pitch adjusting mechanism 3 further comprises a rotating shaft 38 pivotally connected between the first side wall 311 of the first member 31 and the second side wall 321 of the second member 32, and the pitch adjusting mechanism 3 comprises an elastic abutting member 39 arranged between the first member 31 and the second member 32, the elastic abutting member 39 and the adjusting rod 34 are respectively located on opposite sides of the rotating shaft 38, and the elastic restoring force of the elastic abutting member 39 is used to offset at least part of the gravity of the display device.

[0136] Thus, the rotating shaft 38 acts as a fulcrum when the first member 31 and the second member 32 rotate relative to each other, and the rotating shaft 38 is located below the rotating shaft 38 in the height direction. When the top end of the second member 32 is subjected to the gravity of the display device and has a downward inclination tendency around the rotating shaft 38, the elastic abutting member 39 abuts between the first member 31 and the second member 32, which can offset the gravity of the display device, and avoid the display device from lowering due to gravity when the adjusting rod 34 is in the unlocked state and adjusts the pitch angle between the first member 31 and the second member 32.

[0137] Please refer to Figure 22 , Figure 22The pitch angle range of the second member 32 relative to the first member 31 is shown, specifically, +5 degrees to -15 degrees.

[0138] Please refer to Figure 23 , Figure 23 The diagram shows that the second member 32 is pitched up by 5 degrees relative to the first member 31. From Figure 23 It can be seen that when the second member 32 is pitched up by 5 degrees relative to the first member 31, the second member 32 and its display device should be in a pitched-up state.

[0139] Please refer to Figure 24 , Figure 24 The diagram shows that the second member 32 is pitched down by 15 degrees relative to the first member 31. From Figure 24 It can be seen that when the second member 32 is pitched down by 15 degrees relative to the first member 31, the second member 32 and its display device should be in a pitched-down state.

[0140] Please refer to Figure 25 , Figure 25 is an exploded view of the wallboard 1 in the embodiment of the present application. From Figure 25 It can be seen that the cross sections of the upper wallboard 111 are in U shape, and the upper wallboard 111 is provided with a plurality of first installation holes 113 in strip shape arranged transversely along the X axis direction at intervals, and the plurality of first installation holes 113 are symmetrically arranged relative to the center position of the upper wallboard 111. The center position of the upper wallboard 111 is further provided with a first center hole 113a, which identifies the center position of the upper wallboard 111. The cross sections of the lower wallboard 112 are in U shape, and the lower wallboard 112 is provided with a plurality of second installation holes 114 in strip shape arranged transversely along the X axis direction at intervals, and the plurality of second installation holes 114 are symmetrically arranged relative to the center position of the lower wallboard 112. The center position of the lower wallboard 112 is further provided with a second center hole, which identifies the center position of the lower wallboard 112.

[0141] The rectangular frame 11 further comprises a first vertical plate 115 and a second vertical plate 116, both ends of the first vertical plate 115 are connected to one end of the upper wallboard 111 and the lower wallboard 112 respectively, and both ends of the second vertical plate 116 are connected to the other end of the upper wallboard 111 and the lower wallboard 112 respectively.

[0142] The wallboard 1 further comprises a first protective cover 111b arranged corresponding to the upper wallboard 111, a second protective cover 112b arranged corresponding to the lower wallboard 112, a third protective cover 115b arranged corresponding to the first vertical plate 115, and a fourth protective cover 116b arranged corresponding to the second vertical plate 116. The first protective cover 111b is connected to the upper wallboard 111 in a slope surface shape, for fully covering the upper wallboard 111; the second protective cover 112b is connected to the lower wallboard 112 in a slope surface shape, for fully covering the lower wallboard 112; the third protective cover 115b is connected to the first vertical plate 115 in a slope surface shape, for fully covering the first vertical plate 115; and the fourth protective cover 116b is connected to the second vertical plate 116 in a slope surface shape, for fully covering the second vertical plate 116.

[0143] The connecting plate 12 is provided with a connecting assembly 121 for each rear support arm 21, and each connecting assembly 121 comprises two lug plates above and below, one end of the rear support arm 21 is inserted between the two lug plates and connected between the two lug plates through a corresponding screw assembly. In the embodiment, one of the two lug plates can be formed by a corresponding lug on the upper wallboard 111 or the lower wallboard 112, so that the wallboard 1 can be more compact in the height direction.

[0144] Please refer to Figure 26 , Figure 26 The structure and installation schematic diagram of the multimedia board 200 in the embodiment of the present application. As shown in Figure 26 , the multimedia board 200 comprises a plurality of horizontal strip-shaped holes 203 and a plurality of vertical strip-shaped holes 204, which are used for installing buckles to place set-top boxes, remote controls, optical modems, etc. Generally speaking, two screws are locked on the multimedia board 200 to be locked on the wall.

[0145] Please refer to Figure 27 , Figure 27 The schematic diagram of the embedded connection between the multimedia board 200 and the wallboard 1 in the embodiment of the present application. As shown in Figure 27 , the edge position of the wallboard 1 is provided with a clamping groove 118 on the side facing the wall, and the edge position of the multimedia board 200 is provided with a clamping protrusion 201 on the side away from the wall, and the shapes of the clamping groove 118 and the clamping protrusion 201 are adapted to each other, so that the wallboard 1 can clamp the clamping protrusion 201 of the multimedia board 200 through the clamping groove 118, and thus only one additional screw is needed to be fixed on the multimedia board 200.

[0146] It can be understood that, in some embodiments, the clamping grooves 118 are arranged at the edge positions of the upper wall plate 111, the lower wall plate 112, the first vertical plate 115 and the second vertical plate 116, and in some other embodiments, the clamping grooves 118 are arranged at the edge positions of the first protective cover 111b, the second protective cover 112b, the third protective cover 115b and the fourth protective cover 116b, which are not limited herein.

[0147] As shown in Figure 27 , the clamping grooves 118 and the clamping protrusions 201 are both semicircular in shape.

[0148] Please refer to Figure 28 , Figure 28 , which are schematic diagrams of the fitting connection between the multimedia plate 200 and the different edges of the wall plate 1 in the embodiments of the present application. As can be seen from Figure 28 , the multimedia plate 200 can be clamped with any one of the top side, the bottom side, the left side and the right side edges of the wall plate 1.

[0149] Please refer to Figure 29 , Figure 29 , which is an exploded schematic diagram of the support arm 2 in the embodiments of the present application. As can be seen, the hanging rack 100 includes two support arms 2, each of which includes two rear support arms 21 and a front support arm 22, one end of each of the two rear support arms 21 is pivotally connected to different positions of the connecting plate 12 in the height direction, and one end of the front support arm 22 is pivotally connected to the other end of each of the two rear support arms 21 on the upper and lower sides.

[0150] Please refer to Figure 30 , in some embodiments, the hanging rack 100 further includes a horizontal adjustment mechanism 7 connected between the pitch adjustment mechanism 3 and the support arm 2 to adjust the levelness of the display device. Specifically, as shown in Figure 30 , the horizontal adjustment mechanism 7 includes a horizontal adjustment plate 71, a first connecting piece 72 and a second connecting piece 73, one side of the horizontal adjustment plate 71 is connected to the other end of the support arm 2, the horizontal adjustment plate 71 includes a second fulcrum hole 711 and a second arc-shaped hole 712, the second arc-shaped hole 712 has the second fulcrum hole 711 as the center, the first connecting piece 72 is connected between the second fulcrum hole 711 and the first member 31, and the second connecting piece 73 is connected between the second arc-shaped hole 712 and the first member 31.

[0151] In the embodiments, the second arc-shaped hole 712 is two, and the two second arc-shaped holes 712 are arranged at intervals and both have the second fulcrum hole 711 as the center position.

[0152] As can be seen from Figure 30 , the horizontal adjustment plate 71 and the first member 31 are similar in shape and both are square disc-shaped. Moreover, the horizontal adjustment plate 71 is substantially parallel to the plane where the first disc body 310 of the first member 31 is located.

[0153] Please refer to Figure 31 , Figure 31 is an exploded schematic view of the panel 4 in the embodiments of the present application. As can be seen from Figure 31 , the upper crossbar 41 and the lower crossbar 42 of the panel 4 are of a segmented sleeve structure.

[0154] Thus, the segmented sleeve structure can be adapted to display devices of different sizes.

[0155] Please refer to Figure 32 , the hanging piece 5 comprises a hanging strip 50 and a locking piece 52, the hanging strip 50 is provided with a hook 51 for hanging with the upper crossbar 41. One end of the locking piece 52 is rotatably connected with the corresponding lower crossbar 42 of the hanging strip 50, and the other end of the locking piece 52 can pass around the lower crossbar 42 and be locked with the other position of the corresponding lower crossbar 42 of the hanging strip 50.

[0156] Thus, quick locking can be achieved through the locking piece 52.

[0157] In summary, the hanging rack 100 in the present application can realize four-dimensional angle adjustment, i.e. moving forward and backward along the Y-axis direction, moving left and right along the X-axis direction, rotating around the X-axis direction and rotating left and right around the Y-axis direction.

[0158] The above has introduced the subject technical scheme of the present application and the corresponding details. It can be understood that the above introduction is only some implementation of the subject technical scheme of the present application, and some details can be omitted in the specific implementation.

[0159] In addition, in some implementation of the above utility model, multiple implementations can be combined for implementation, and various combination schemes are not listed one by one due to the length. The person skilled in the art can freely combine the above implementation in the specific implementation according to the needs to obtain better application experience.

[0160] As can be known from the above, the present application has the excellent characteristics described above, and can improve the performance of the prior art in use and has practicality, becoming a product with great practical value.

[0161] The above only describes the preferred embodiments of the present application and does not limit the present application. Any modification, equivalent replacement or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pitch adjustment mechanism, characterized by, The pitch adjusting mechanism comprises a first member and a second member, the first member is provided with a first connecting hole and a second connecting hole on a first sidewall, the second member is provided with a first fulcrum hole and an adjusting hole on a second sidewall, the adjusting hole comprises at least two adjusting sub-holes arranged along the front-back direction of the pitch adjusting mechanism, the distance between the centers of adjacent two adjusting sub-holes is smaller than the diameter of the adjusting sub-hole, and different adjusting sub-holes correspond to different pitch angles; The pitch adjusting mechanism further comprises a connecting piece and an adjusting rod, the connecting piece is connected between the first connecting hole and the first fulcrum hole, and the adjusting rod is arranged between the adjusting hole and the second connecting hole; The adjusting rod is provided with a flat part, the flat part comprises a cylindrical surface and two planes located on the opposite sides of the cylindrical surface, the diameter of the cylindrical surface is equal to the diameter of the adjusting sub-hole, and the distance between the two planes is smaller than or equal to the width of the connecting part of adjacent two adjusting sub-holes; When the adjusting rod is rotated to a first position, the adjusting rod can pass through the connecting part of adjacent two adjusting sub-holes; When the adjusting rod is rotated to a second position, the adjusting rod is locked relative to the adjusting hole.

2. The pitch adjustment mechanism of claim 1, wherein, The adjusting hole is an arc-shaped strip hole with the first fulcrum hole as the center.

3. The pitch adjustment mechanism of claim 1, wherein, The extended lines of the arcs of adjacent two adjusting sub-holes intersect to form a convex part.

4. The pitch adjustment mechanism according to any one of claims 1 to 3, characterized in that The pitch adjusting mechanism further comprises a wrench, the wrench is located on the outer side of the second sidewall of the second member and is rotationally connected with the flat part of the adjusting rod, and the adjusting rod is driven to rotate between the first position and the second position by the wrench.

5. The pitch adjustment mechanism of claim 4, wherein, The rotation angle range of the wrench is 0-90 degrees.

6. The pitch adjustment mechanism of claim 1, wherein, The adjusting rod further comprises a round rod part connected with the flat part, and the pitch adjusting mechanism further comprises a rotation limiting piece, the rotation limiting piece comprises a rotating piece and a limiting column, the rotating piece is connected with the round rod part, the limiting column is fixed on the surface of the side of the first member facing the second member, and the cooperation between the rotating piece and the limiting column limits the rotation angle of the adjusting rod relative to the second member.

7. The pitch adjustment mechanism of claim 6, wherein, The rotation limiting piece further comprises a fixing piece, the fixing piece is fixed on the surface of the side of the first member facing the second member, the fixing piece is provided with a through hole along the length direction parallel to the adjusting rod, the round rod part is inserted into the through hole, the limiting column is arranged on the surface of the fixing piece, the rotating piece is provided with a first limiting part and a second limiting part, when the limiting column is clamped with the first limiting part, the adjusting rod is rotated to the first position, and when the limiting column is clamped with the second limiting part, the adjusting rod is rotated to the second position.

8. The pitch adjustment mechanism of claim 7, wherein, The rotating piece comprises a ring part and a first extending part and a second extending part extending outward from two different positions of the ring part along the radial direction of the ring part, the first extending part and the ring part form the first limiting part, and the second extending part and the ring part form the second limiting part.

9. The pitch adjustment mechanism of claim 7, wherein, The pitch adjusting mechanism further comprises an abutting member sleeved on the round rod portion, and opposite ends of the abutting member abut against the second side wall of the second member and the fixed member respectively.

10. The pitch adjustment mechanism of claim 1, wherein, An outer surface of the second side wall of the second member is provided with a scale mark corresponding to a position of the adjusting hole, and the pitch adjusting mechanism further comprises a pointer member connected between the first member and the second member, and when the first member has different pitch angles relative to the second member, the pointer member indicates the pitch angle of the second member relative to the first member in combination with the scale mark.

11. The pitch adjustment mechanism of claim 10, wherein, The pointer member comprises a connecting portion, a plug-in portion and an indicating arrow, the connecting portion is connected to the first member, the plug-in portion is connected between the connecting portion and the indicating arrow, the plug-in portion is plugged into the first side wall of the first member and the second side wall of the second member provided with the adjusting hole, and the indicating arrow is located on an outer surface of the second side wall of the second member provided with the adjusting hole and points to the scale mark.

12. The pitch adjustment mechanism of claim 11, wherein, The plug-in portion is in U shape, the connecting portion is connected perpendicularly to one arm of the plug-in portion, and the connecting portion is connected to a top surface of the second member.

13. The pitch adjustment mechanism of claim 10, wherein, The pointer member is a ratchet mechanism, the pointer member comprises a spring pin assembly and a clamping member, the clamping member is fixed to the second side wall of the second member, the clamping member is provided with at least two clamping teeth, different clamping teeth correspond to different pitch angles, the spring pin assembly is fixed to the first side wall of the first member, and when the second member has different pitch angles relative to the first member, the spring pin assembly is engaged with the corresponding clamping teeth to indicate the pitch angle of the second member relative to the first member.

14. The pitch adjustment mechanism of claim 13, wherein, The spring pin assembly comprises an elastic abutting member and a spring pin, one end of the elastic abutting member is fixed to the first side wall of the first member, the other end of the elastic abutting member is connected to one end of the spring pin, and the end of the spring pin facing the clamping teeth can be engaged with the clamping teeth.

15. The pitch adjustment mechanism of claim 13, wherein, The clamping teeth and the end of the spring pin facing the clamping teeth are both in sharp angle shape.

16. The pitch adjustment mechanism of claim 14, wherein, The elastic abutting member comprises a spring seat and a first spring, the spring seat is fixed to the first side wall of the first member, one side of the spring seat facing an inner side surface of the first side wall is provided with a receiving groove and an abutting column located in the receiving groove, the spring pin is provided with a strip-shaped hole extending along a height direction of the pitch adjusting mechanism, the abutting column is plugged into the strip-shaped hole, and the first spring is also located in the strip-shaped hole and abuts against between the abutting column and a top end of the strip-shaped hole.

17. The pitch adjustment mechanism according to any one of claims 1 to 16, characterized in that The openings of the first member and the second member are oppositely arranged, the tilt adjusting mechanism further comprises a rotating shaft pivotally connected between a first side wall of the first member and a second side wall of the second member, the tilt adjusting mechanism comprises an elastic abutting member arranged between the first member and the second member, the elastic abutting member and the adjusting rod are respectively located on opposite sides of the rotating shaft, and an elastic restoring force of the elastic abutting member is used to offset at least part of gravity of the display device.

18. A rack, characterized in that The mounting frame comprises a wall plate, a support arm, a tilt adjusting mechanism, a panel and a hanging piece. The wall plate is arranged on a wall. One end of the support arm is pivotally connected to the wall plate. The tilt adjusting mechanism is connected between the other end of the support arm and the panel. The hanging piece is fixedly connected to the back of the display device and hung on the panel.

19. The rack of claim 18, wherein, The mounting frame further comprises a horizontal adjusting mechanism, the horizontal adjusting mechanism comprises a horizontal adjusting plate, a first connecting piece and a second connecting piece, one side of the horizontal adjusting plate is connected to the other end of the support arm, the horizontal adjusting plate comprises a second fulcrum hole and an arc-shaped hole, the arc-shaped hole has the second fulcrum hole as a center, the first connecting piece is connected between the second fulcrum hole and the first member, and the second connecting piece is connected between the arc-shaped hole and the first member.

20. The rack of claim 18, wherein, The edge of the wall plate is provided with a clamping groove, the clamping groove is used for clamping a clamping protrusion at an edge position of the multimedia plate, and / or the clamping groove is in a semicircular shape.

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