Monitor stand with quick disassembly structure

Abstract

The present invention relates to a display stand with a quick disassembly structure, comprising a cantilever, a connector and a mounting plate, wherein one end of the cantilever is provided with a shaft seat, the shaft seat is provided with a shaft hole, the connector is provided with a shaft, the connector is pressed on it, the shaft is rotatably inserted into the shaft hole, the lower end of the shaft is connected with an expansion member and an adjustment mechanism for controlling the expansion member to perform radial expansion and contraction, the expansion member is located outside the shaft hole, the adjustment mechanism stretches the expansion member outward, and presses the expansion member onto the shaft seat at the lower end of the shaft hole; when the adjustment mechanism is adjusted to retract the expansion member inward to the initial state, the compression state between the expansion member and the shaft seat is released, and in the process of the shaft being inserted into or detached from the shaft hole, the adjustment mechanism and the expansion member can pass through the shaft hole from top to bottom or from bottom to top. The advantages of the present invention are: making the disassembly and assembly between the display stand and the display more time-saving and labor-saving, and the user can complete the display fixing operation alone.

Description

Technical Field

[0001] The invention relates to the technical field of instrument brackets, in particular to a display bracket with a quick disassembly and assembly structure. Background Art

[0002] The monitor is one of the essential devices in people's daily life. It is generally placed on the desktop through a fixed seat or hung through a monitor stand. The existing monitor stand generally includes a fixed clamp seat, a cantilever, a connecting head and a mounting plate. The fixed clamp seat is used to be fixed on the table. The mounting plate is connected to the connecting head and is used to connect the monitor. One end of the cantilever is rotatably connected to the fixed clamp seat, and the other end of the cantilever is rotatably connected to the connecting head. When using the above-mentioned monitor stand, the user generally fixes the fixed clamp seat on the table first, then lifts the monitor, makes the mounting plate stick to the mounting position on the back of the monitor, and finally uses multiple screws to lock and fix the mounting plate to the monitor. During the entire monitor fixing process, the user needs to keep lifting the monitor until all the screws are assembled. This not only takes a lot of assembly time, but also is very laborious. Users usually cannot complete the monitor fixing operation alone. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a display stand with a quick disassembly structure, so that the disassembly and assembly between the display stand and the display can become more time-saving and labor-saving, and the user can complete the display fixing operation alone.

[0004] In order to solve the above technical problems, the present invention provides a rotating joint with the following structure: it includes a cantilever, a connecting head and a mounting plate, the mounting plate is connected to the connecting head, wherein a rotating shaft seat is provided at one end of the cantilever, a vertically penetrating axial hole is provided on the rotating shaft seat, a rotating shaft is provided at the lower end of the connecting head, the connecting head is pressed on the rotating shaft seat at the upper end of the axial hole, the rotating shaft can be rotatably inserted into the axial hole, an expansion piece and an adjusting mechanism for controlling the radial extension and contraction of the expansion piece are connected to the lower end of the rotating shaft, the expansion piece is located outside the axial hole, the adjusting mechanism stretches the expansion piece outward and presses the expansion piece on the rotating shaft seat at the lower end of the axial hole; when the adjusting mechanism is adjusted to retract the expansion piece inward to the initial state, the pressing state between the expansion piece and the rotating shaft seat is released, and in the process of the rotating shaft being inserted into or detached from the axial hole, the adjusting mechanism and the expansion piece can pass through the axial hole from top to bottom or from bottom to top.

[0005] After adopting the above structure, compared with the prior art, the display bracket with a quick disassembly structure of the present invention has the following advantages: when installing the display, the user can first remove the connector from the shaft seat, and then place the display to be fixed on the table with its back facing up, and then the mounting plate can be placed on the back of the display and the two can be fixed together with screws, while the rest of the display bracket can be fixed on the table in advance by the self-provided fixing clamp seat. After completing the above operations, the user only needs to retract the expansion piece inward to the initial state through the adjustment mechanism, and then lift the display, insert the shaft into the shaft hole, and finally adjust the adjustment mechanism to fix the display. The structure pushes the expansion piece outward so that the expansion piece is pressed against the shaft seat at the lower end of the shaft hole. At this time, the user only needs to apply a little force to make the connecting head overcome the friction between the expansion piece and the shaft seat and rotate relative to the shaft seat. In other words, the cooperation between the expansion piece and the shaft seat produces a damping effect. When the monitor needs to be removed from the monitor bracket, the user can first retract the expansion piece inward to the initial state through the adjustment mechanism, and then lift the monitor upward so that the connecting head can be removed from the shaft seat, and then place the monitor flat on the table with its back facing up, and finally remove the mounting plate from the monitor. From the above-mentioned disassembly and assembly steps of the display and the display stand, it can be known that: 1. Since the weight of the connecting head and the mounting plate is relatively light, and the user does not need to apply force to the display during the disassembly and assembly process of the two, the connection between the display and the mounting plate becomes very easy and convenient, saving time and effort; 2. Under the cooperation of the rotating shaft and the shaft hole and the supporting effect of the rotating shaft seat on the connecting head, the display can be stably fixed on the display stand, so during the disassembly and assembly process between the connecting head and the rotating shaft seat, the user does not need to lift the display for a long time, thereby further making the fixing operation of the display easier and more convenient, saving time and effort; 3. During the disassembly and assembly process between the connecting head and the rotating shaft seat, the adjustment mechanism and the expansion member are always connected to the connecting head, and there is no need to take them in and out separately, thereby further making the fixing operation of the display easier, more convenient, saving time and effort. In summary, the display stand with a quick disassembly and assembly structure of the present invention is not only easy to use, but also very easy and convenient to disassemble and assemble with the display, saving time and effort, so that the user can complete the fixing operation of the display alone.

[0006] The display bracket with a quick disassembly and assembly structure described in the present invention comprises a bolt and a pressure block, the pressure block is an annular structure, the expansion piece is an unclosed annular structure with an opening, a guide boss is provided in the middle of the lower end of the rotating shaft, the pressure block can be slidably sleeved on the guide boss, a vertical threaded hole is provided at the lower end of the guide boss, the screw portion of the bolt is threadedly connected with the threaded hole, the head of the bolt is pressed tightly at the lower end of the pressure block, an annular convex stop is provided on the outer side of the upper end of the pressure block, and a first conical surface is provided on the circumferential side wall of the convex stop which gradually inclines inward from bottom to top, the expansion piece is sleeved on the convex stop at the upper end of the pressure block, and the pressure block stretches the expansion piece outward through the first conical surface, so that the upper end of the outer side of the expansion piece is pressed tightly against the bottom of the rotating shaft seat, the upper end of the inner side of the expansion piece is pressed tightly against the lower end surface of the rotating shaft, and the lower end of the expansion piece is pressed tightly against the bottom surface of the convex stop; when the adjusting bolt makes it move downward, as the pressure block slides downward, the expansion piece can gradually retract inward to its initial state.

[0007] The above-mentioned coordination structure between the adjustment mechanism and the expansion piece is not only simple in structure, convenient and simple to operate, saves time and effort, and is convenient for axial fixation or separation between the connecting head and the rotating shaft seat, but also when adjusting the telescopic extension of the expansion piece through the adjustment mechanism, it can effectively reduce or even avoid the axial movement of the expansion piece, thereby greatly reducing the shaking of the expansion piece, making it easier for the expansion piece to pass through the shaft hole smoothly, and ultimately facilitating the disassembly and assembly between the connecting head and the rotating shaft seat.

[0008] The display bracket with a quick disassembly and assembly structure described in the present invention is characterized in that an annular fixed boss is provided on the lower end surface of the rotating shaft outside the guide boss, the expansion piece is sleeved outside the fixed boss, and when the expansion piece is retracted to the initial state, the inner circumferential wall of the expansion piece is pressed against the circumferential side wall of the fixed boss.

[0009] The above structure enables the expansion member to be effectively fixed on the rotating shaft in the initial state, thereby preventing the expansion member from radial shaking, making it easier for the expansion member to pass through the shaft hole smoothly, and ultimately facilitating the disassembly and assembly between the connector and the rotating shaft seat.

[0010] The display bracket with a quick disassembly structure described in the present invention has a plurality of tooth grooves evenly distributed circumferentially on the upper end of the pressing block, a plurality of convex teeth evenly distributed circumferentially on the lower end of the rotating shaft outside the guide boss, and each convex tooth is located in one of the tooth grooves.

[0011] The above structure can realize synchronous rotation of the pressing block and the rotating shaft, thereby effectively avoiding relative rotation between the expansion member, the pressing block and the rotating shaft, thereby effectively ensuring the fixing stability of the expansion member and effectively reducing the wear of the expansion member.

[0012] The display stand with a quick disassembly and assembly structure of the present invention has a receiving groove on the rotating shaft seat at the lower end of the shaft hole, and the bolt, the pressing block and the expansion member are all located in the receiving groove.

[0013] The above structure can hide the bolts, pressure blocks and expansion pieces in the accommodating groove, which not only makes the display stand more beautiful, but also protects the bolts, pressure blocks and expansion pieces to prevent users from accidentally touching them and ensure the fixing stability between the rotating shaft and the rotating shaft seat.

[0014] The display stand with a quick disassembly and assembly structure described in the present invention is characterized in that the lower end of the inner circumferential wall of the pressing block is provided with a third conical surface which is gradually inclined outward from top to bottom, and the outer circumferential wall of the bolt head is provided with a fourth conical surface which is gradually inclined inward from bottom to top, and the third conical surface is pressed against the fourth conical surface.

[0015] The above structure can not only effectively reduce the axial length of the adjustment mechanism, making the structure of the adjustment mechanism more compact, but also effectively improve the coaxiality between the pressing block and the guide boss, making the pressing block slide up and down more smoothly.

[0016] In the display stand with a quick disassembly and assembly structure described in the present invention, the shaft hole and the rotating shaft are both in the shape of a truncated cone that gradually tilts inward from top to bottom.

[0017] The above structure can make it easier to connect or separate the shaft hole and the rotating shaft, thereby making the disassembly and assembly between the connector and the rotating shaft seat easier and more convenient, saving time and effort.

[0018] The display stand with a quick disassembly and assembly structure described in the present invention, wherein a sleeve is further provided between the shaft hole and the rotating shaft, the sleeve is connected in the shaft hole, and the rotating shaft is rotatably inserted in the sleeve, and when the adjusting mechanism is adjusted to retract the expansion member inward to an initial state, during the process of the rotating shaft being inserted into the shaft hole or detached from the shaft hole, the adjusting mechanism and the expansion member can pass through the sleeve from top to bottom or from bottom to top.

[0019] The arrangement of the shaft sleeve can facilitate the mutual rotation between the shaft hole and the rotating shaft, making the angle adjustment of the display easier and more convenient, saving time and effort.

[0020] The display stand with a quick disassembly structure described in the present invention has an upper folding edge folded outward at the upper end of the sleeve, the lower end of the upper folding edge is pressed tightly on the rotating shaft seat at the upper end of the shaft hole, and the connecting head is pressed tightly at the upper end of the upper folding edge.

[0021] The above structure makes it easy to fix the shaft sleeve and facilitates the assembly between the connector and the rotating shaft seat.

[0022] The display bracket with a quick disassembly and assembly structure described in the present invention is characterized in that the upper end of the sleeve is provided with a lower folded edge folded outward, the upper end of the lower folded edge is pressed tightly on the shaft seat at the lower end of the shaft hole, the sleeve is provided with a notch axially passing through the entire sleeve, and the upper end of the outer side of the expansion piece is pressed tightly on the lower end of the lower folded edge.

[0023] The above structure not only makes the fixing of the shaft sleeve convenient and reliable, and not easy to fall off, and facilitates the disassembly and assembly between the connector and the rotating shaft seat, but also can effectively reduce the mutual wear between the expansion piece and the rotating shaft seat.

[0024] The display bracket with a quick disassembly structure of the present invention has a second conical surface which is gradually inclined inward from bottom to top on the inner side of the lower end of the lower folded edge, and the upper end of the outer side of the expansion piece is pressed tightly against the second conical surface.

[0025] The above structure not only makes the extension of the expansion piece smoother and more convenient, and is more convenient for the compression fit of the expansion piece and the sleeve, but also can effectively reduce the contact area between the expansion piece and the sleeve, thereby effectively reducing the mutual wear between the expansion piece and the sleeve, and can also more easily rotate the connecting head, making the angle adjustment of the display more labor-saving.

[0026] In the display stand with a quick disassembly and assembly structure of the present invention, a vertical first limiting protrusion is provided on the inner peripheral wall of the rotating shaft, and the first limiting protrusion is located in the notch.

[0027] The above structure can avoid relative rotation between the shaft sleeve and the rotating shaft seat, thereby reducing the wear of the shaft sleeve.

[0028] The display stand with a quick disassembly and assembly structure described in the present invention is characterized in that a pair of limit strips are provided at the lower parts of the two side walls of the notch, the inner walls of the limit strips are integrated with the inner circumferential wall of the sleeve, and the thickness of the limit strips gradually decreases from bottom to top, the first limit protrusion extends downward from the upper end of the inner circumferential wall of the rotating shaft, and the protruding thickness of the first limit protrusion gradually decreases from top to bottom, and a second limit protrusion is also provided on the inner circumferential wall of the rotating shaft, the second limit protrusion extends upward from the lower end of the inner circumferential wall of the rotating shaft, and the upper part of the second limit protrusion is located on the inner wall of the first limit protrusion, and the protruding thickness of the second limit protrusion gradually decreases from bottom to top, and the second limit protrusion is located in the notch between the pair of limit strips, and the inner wall of the first limit protrusion is in contact with the outer wall of the corresponding limit strip.

[0029] The above structure ensures that the sleeve has sufficient deformation so that the sleeve can be smoothly fixed on the shaft seat. It can not only greatly improve the limiting effect of the shaft seat on the sleeve, but also effectively increase the contact area between the outer wall of the sleeve and the inner wall of the shaft hole, making the force on the sleeve more uniform, thereby effectively reducing damage and wear of the sleeve.

[0030] The display stand with a quick disassembly and assembly structure described in the present invention has an arc-shaped limiting groove at the lower end of the connecting head outside the rotating shaft, and a third limiting protrusion is provided at the upper end of the rotating shaft seat, and the third limiting protrusion can be movably located in the limiting groove.

[0031] The above structure effectively prevents the connector from rotating 360 degrees relative to the rotating shaft seat, thereby preventing various wires connected to the display from getting tangled. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the partial three-dimensional structure of the display stand with a quick disassembly structure of the present invention;

[0033] Figure 2 It is a half-section view of the display stand with a quick disassembly structure of the present invention;

[0034] Figure 3 It is a partial exploded view of the display stand with a quick disassembly structure of the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the central shaft sleeve of the display stand with a quick disassembly structure of the present invention;

[0036] Figure 5 The utility model is a schematic diagram of the three-dimensional structure appearance of the rotating shaft seat of the display stand with a quick disassembly structure of the present invention.

[0037] Explanation of the reference numerals in the accompanying drawings: 1. cantilever; 2. connector; 3. mounting plate; 4. shaft seat; 5. shaft hole; 6. shaft; 7. expansion piece; 8. bolt; 9. pressure block; 10. opening; 11. guide boss; 12. threaded hole; 13. convex stop; 14. first conical surface; 15. fixing boss; 16. tooth groove; 17. convex tooth; 18. accommodating groove; 19. third conical surface; 20. fourth conical surface; 21. bushing; 22. upper folded edge; 23. lower folded edge; 24. notch; 25. second conical surface; 26. first limiting protrusion; 27. limiting strip; 28. second limiting protrusion; 29. ​​limiting groove; 30. third limiting protrusion. DETAILED DESCRIPTION

[0038] The display stand with a quick disassembly structure of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0039] In the description of the present invention, unless otherwise specified, the terms "up", "down", "left", "right", "front", "back", "inside", "outside", etc. indicating directions or state relationships are based on the directions or state relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred mechanism or component must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] like Figures 1 to 5 As shown, the display bracket with a quick disassembly structure of the present invention includes a cantilever 1, a connector 2 and a mounting plate 3, the mounting plate 3 is connected to the connector 2, a rotating shaft seat 4 is provided at one end of the cantilever 1, a vertically penetrating shaft hole 5 is provided on the rotating shaft seat 4, the above-mentioned "vertical" does not specifically refer to the vertical direction, when the axis of the shaft hole 5 has a small inclination angle with the vertical direction, such as 1 degree, 3 degrees, 5 degrees, etc., these are all within the meaning of "vertical"; a rotating shaft 6 is provided at the lower end of the connector 2, the connector 2 is pressed on the rotating shaft seat 4 at the upper end of the shaft hole 5, the rotating shaft 6 can be rotatably inserted into the shaft hole 5, and the lower end of the rotating shaft 6 is connected with an expansion member 7 and a member for controlling the expansion The expansion member 7 is an adjusting mechanism for radially extending and retracting the expansion member 7, and the expansion member 7 is located outside the shaft hole 5. The adjusting mechanism stretches the expansion member 7 outward and presses the expansion member 7 on the rotating shaft seat 4 at the lower end of the shaft hole 5; when the adjusting mechanism is adjusted to retract the expansion member 7 inward to the initial state, the pressing state between the expansion member 7 and the rotating shaft seat 4 is released, and in the process of the rotating shaft 6 being inserted into the shaft hole 5 or detached from the shaft hole 5, the adjusting mechanism and the expansion member 7 can pass through the shaft hole 5 from top to bottom or from bottom to top; in the present invention, the expansion member 7 retracting inward to the initial state refers to the minimum state that the expansion member 7 can reach when it is connected to the connecting head 2.

[0042] The adjusting mechanism includes a bolt 8 and a pressure block 9. The pressure block 9 is an annular structure. The expansion member 7 is an unclosed annular structure with an opening 10. A guide boss 11 is provided in the middle of the lower end of the rotating shaft 6. The pressure block 9 can be slidably sleeved on the guide boss 11 up and down. A vertical threaded hole 12 is provided at the lower end of the guide boss 11. The screw portion of the bolt 8 is threadedly connected with the threaded hole 12. The head of the bolt 8 is pressed tightly at the lower end of the pressure block 9. An annular convex stop 13 is provided on the outer side of the upper end of the pressure block 9. The circumferential side wall of the convex stop 13 is provided with a gradually inclined inward from bottom to top. The first conical surface 14, the entire circumferential side wall of the convex stop 13 in the present invention is the first conical surface 14, the expansion member 7 is sleeved on the convex stop 13 at the upper end of the pressure block 9, and the pressure block 9 pushes the expansion member 7 outward through the first conical surface 14, so that the upper end of the outer side of the expansion member 7 is pressed against the bottom of the shaft seat 4, the upper end of the inner side of the expansion member 7 is pressed against the lower end surface of the shaft 6, and the lower end of the expansion member 7 is pressed against the bottom surface of the convex stop 13; when the adjusting bolt 8 moves it downward, as the pressure block 9 slides downward, the expansion member 7 can gradually retract inward to its initial state.

[0043] In order to facilitate smoother sliding of the expansion member 7 on the first conical surface 14 , the lower end of the inner side of the expansion member 7 is in an arc shape.

[0044] An annular fixed boss 15 is provided on the lower end surface of the rotating shaft 6 outside the guide boss 11 , and the expansion member 7 is sleeved outside the fixed boss 15 , and when the expansion member 7 is retracted to the initial state, the inner circumferential wall of the expansion member 7 is pressed against the circumferential side wall of the fixed boss 15 .

[0045] A plurality of tooth grooves 16 are evenly distributed circumferentially on the upper end of the pressing block 9, and a plurality of convex teeth 17 are evenly distributed circumferentially on the lower end of the rotating shaft 6 outside the guide boss 11, and each convex tooth 17 is located in one of the tooth grooves 16; in the present invention, the convex teeth 17 are arranged on the fixed boss 15, and preferably, all the convex teeth 17 constitute the fixed boss 15.

[0046] A receiving groove 18 is provided on the shaft seat 4 at the lower end of the shaft hole 5, and the bolt 8, the pressure block 9 and the expansion member 7 are all located in the receiving groove 18. At this time, the upper end of the outer side of the expansion member 7 is pressed against the top of the receiving groove 18 at the lower end of the shaft hole 5.

[0047] The lower end of the inner circumferential wall of the pressing block 9 is provided with a third conical surface 19 which is gradually inclined outward from top to bottom. The outer circumferential wall of the head of the bolt 8 is provided with a fourth conical surface 20 which is gradually inclined inward from bottom to top. The third conical surface 19 is pressed against the fourth conical surface 20.

[0048] The shaft hole 5 and the rotating shaft 6 are both in the shape of a truncated cone which is gradually inclined inward from top to bottom.

[0049] A sleeve 21 is also provided between the shaft hole 5 and the rotating shaft. The sleeve 21 is connected to the shaft hole 5. The rotating shaft 6 can be rotatably inserted into the sleeve 21. When the adjusting mechanism is adjusted to retract the expansion member 7 inward to the initial state, during the process of the rotating shaft 6 being inserted into the shaft hole 5 or detached from the shaft hole 5, the adjusting mechanism and the expansion member 7 can pass through the sleeve 21 from top to bottom or from bottom to top.

[0050] An outwardly folded upper edge 22 is provided at the upper end of the shaft sleeve 21 , the lower end of the upper edge 22 is pressed tightly on the shaft seat 4 at the upper end of the shaft hole 5 , and the connector 2 is pressed tightly at the upper end of the upper edge 22 .

[0051] The upper end of the sleeve 21 is provided with a lower folded edge 23 folded outward, and the upper end of the lower folded edge 23 is pressed tightly on the shaft seat 4 at the lower end of the shaft hole 5. The sleeve 21 is provided with a notch 24 axially penetrating the entire sleeve 21, and the upper end of the outer side of the expansion piece 7 is pressed tightly at the lower end of the lower folded edge 23.

[0052] A second conical surface 25 which is gradually inclined inward from bottom to top is provided on the inner side of the lower end of the lower folded edge 23 , and the upper end of the outer side of the expansion member 7 is pressed tightly against the second conical surface 25 .

[0053] In order to facilitate smoother sliding of the expansion member 7 on the second conical surface 25 , the upper end of the outer side of the expansion member 7 is in an arc shape.

[0054] A vertical first limiting protrusion 26 is provided on the inner peripheral wall of the rotating shaft 6 , and the first limiting protrusion 26 is located in the notch 24 .

[0055] A pair of limiting strips 27 are provided at the lower part of the two side walls of the notch 24, the inner wall of the limiting strip 27 is integral with the inner circumferential wall of the sleeve 21, and the thickness of the limiting strip 27 gradually decreases from bottom to top, the first limiting protrusion 26 extends downward from the upper end of the inner circumferential wall of the rotating shaft 6, and the protruding thickness of the first limiting protrusion 26 gradually decreases from top to bottom, and a second limiting protrusion 28 is also provided on the inner circumferential wall of the rotating shaft 6, the second limiting protrusion 28 extends upward from the lower end of the inner circumferential wall of the rotating shaft 6, and the upper part of the second limiting protrusion 28 is located on the inner wall of the first limiting protrusion 26, and the protruding thickness of the second limiting protrusion 28 gradually decreases from bottom to top, the second limiting protrusion 28 is located in the notch 24 between the pair of limiting strips 27, and the inner wall of the first limiting protrusion 26 is in contact with the outer wall of the corresponding limiting strip 27; the thickness of the limiting strip 27 in the present invention refers to the radial width of the limiting strip 27.

[0056] An arc-shaped limiting groove 29 is provided at the lower end of the connector 2 outside the rotating shaft 6 , and a third limiting protrusion 30 is provided at the upper end of the rotating shaft seat 4 . The third limiting protrusion 30 can be movably located in the limiting groove 29 .

[0057] The curvature of the limiting groove 29 can be set at 90-270 degrees, preferably 180 degrees.

[0058] The third limiting protrusion 30 in the present invention is formed by the portion of the first limiting protrusion 26 extending upwardly out of the shaft hole 5 . This arrangement can make the manufacture of the rotating shaft seat 4 simpler.

[0059] The expansion member 7, pressure block 9 and guide boss 11 in the present invention are all in a circular ring shape. The bolt 8, pressure block 9, expansion member 7, limit groove 29, shaft sleeve 21, rotating shaft 6, fixed boss 15, guide boss 11 and shaft hole 5 are coaxially arranged. The outer diameter of the pressure block 9 is smaller than the minimum inner diameter of the shaft sleeve 21. When the expansion member 7 retracts inward to the initial state, the outer diameter of the expansion member 7 is smaller than the minimum inner diameter of the shaft sleeve 21.

[0060] The above embodiments are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A display stand with a quick disassembly structure, comprising a cantilever (1), a connector (2) and a mounting plate (3), wherein the mounting plate (3) is connected to the connector (2), and is characterized in that: A rotating shaft seat (4) is provided at one end of the cantilever (1), and a vertically penetrating shaft hole (5) is provided on the rotating shaft seat (4). A rotating shaft (6) is provided at the lower end of the connecting head (2). The connecting head (2) is pressed tightly on the rotating shaft seat (4) at the upper end of the shaft hole (5). The rotating shaft (6) is rotatably inserted into the shaft hole (5). An expansion member (7) and an adjusting mechanism for controlling the radial expansion and contraction of the expansion member (7) are connected to the lower end of the rotating shaft (6). The expansion member (7) is located outside the shaft hole (5). The adjusting mechanism The mechanism expands the expansion member (7) outward and presses the expansion member (7) onto the rotating shaft seat (4) at the lower end of the shaft hole (5); when the adjustment mechanism is adjusted to make the expansion member (7) retract inward to the initial state, the pressing state between the expansion member (7) and the rotating shaft seat (4) is released, and in the process of the rotating shaft (6) being inserted into the shaft hole (5) or being separated from the shaft hole (5), the adjustment mechanism and the expansion member (7) can pass through the shaft hole (5) from top to bottom or from bottom to top; The adjusting mechanism comprises a bolt (8) and a pressure block (9), wherein the pressure block (9) is an annular structure, and the expansion member (7) is an open annular structure with an opening (10). A guide boss (11) is provided in the middle of the lower end of the rotating shaft (6), and the pressure block (9) can be slidably sleeved on the guide boss (11) up and down. A vertical threaded hole (12) is provided at the lower end of the guide boss (11), and the screw portion of the bolt (8) is threadedly connected to the threaded hole (12). The head of the bolt (8) is pressed tightly at the lower end of the pressure block (9), and an annular convex stop (13) is provided on the outer side of the upper end of the pressure block (9), and a circumferential side wall of the convex stop (13) is provided from bottom to top. The expansion member (7) is sleeved on the convex stop (13) at the upper end of the pressure block (9), and the pressure block (9) pushes the expansion member (7) outward through the first conical surface (14), so that the upper end of the outer side of the expansion member (7) is pressed against the bottom of the shaft seat (4), the upper end of the inner side of the expansion member (7) is pressed against the lower end surface of the shaft (6), and the lower end of the expansion member (7) is pressed against the bottom surface of the convex stop (13); when the bolt (8) is adjusted to move downward, as the pressure block (9) slides downward, the expansion member (7) can gradually retract inward to its initial state; wherein the lower end of the inner side of the expansion member (7) is in an arc shape.

2. The display stand with a quick disassembly structure according to claim 1, characterized in that: An annular fixed boss (15) is provided on the lower end surface of the rotating shaft (6) outside the guide boss (11), and the expansion member (7) is sleeved outside the fixed boss (15). When the expansion member (7) is retracted to an initial state, the inner circumferential wall of the expansion member (7) is pressed against the circumferential side wall of the fixed boss (15).

3. The display stand with a quick disassembly structure according to claim 1, characterized in that: The upper end of the pressing block (9) is evenly distributed with a plurality of tooth grooves (16) in the circumferential direction, and the lower end of the rotating shaft (6) outside the guide boss (11) is evenly distributed with a plurality of convex teeth (17) in the circumferential direction, and each of the convex teeth (17) is located in one of the tooth grooves (16).

4. The display stand with a quick disassembly structure according to claim 1, characterized in that: A receiving groove (18) is provided on the rotating shaft seat (4) at the lower end of the shaft hole (5), and the bolt (8), the pressing block (9) and the expansion member (7) are all located in the receiving groove (18).

5. The display stand with a quick disassembly structure according to claim 1, characterized in that: The lower end of the inner circumferential wall of the pressure block (9) is provided with a third conical surface (19) which is gradually inclined outward from top to bottom, and the outer circumferential wall of the head of the bolt (8) is provided with a fourth conical surface (20) which is gradually inclined inward from bottom to top, and the third conical surface (19) is pressed against the fourth conical surface (20).

6. The display stand with a quick disassembly structure according to claim 1, characterized in that: The shaft hole (5) and the rotating shaft (6) are both in the shape of a truncated cone that gradually tilts inwards from top to bottom.

7. The display stand with a quick disassembly structure according to any one of claims 1 to 6, characterized in that: A shaft sleeve (21) is further provided between the shaft hole (5) and the rotating shaft. The shaft sleeve (21) is connected to the shaft hole (5). The rotating shaft (6) is rotatably inserted into the shaft sleeve (21). When the adjusting mechanism is adjusted to retract the expansion member (7) inward to an initial state, during the process of the rotating shaft (6) being inserted into the shaft hole (5) or being separated from the shaft hole (5), the adjusting mechanism and the expansion member (7) can both pass through the shaft sleeve (21) from top to bottom or from bottom to top.

8. The display stand with a quick disassembly structure according to claim 7, characterized in that: The upper end of the shaft sleeve (21) is provided with an outwardly folded upper edge (22), the lower end of the upper edge (22) is pressed tightly against the rotating shaft seat (4) at the upper end of the shaft hole (5), and the connector (2) is pressed tightly against the upper end of the upper edge (22).

9. The display stand with a quick disassembly structure according to claim 8, characterized in that: The upper end of the shaft sleeve (21) is provided with a lower folded edge (23) folded outward, and the upper end of the lower folded edge (23) is pressed tightly on the rotating shaft seat (4) at the lower end of the shaft hole (5). The shaft sleeve (21) is provided with a notch (24) axially penetrating the entire shaft sleeve (21), and the upper end of the outer side of the expansion piece (7) is pressed tightly on the lower end of the lower folded edge (23).

10. The display stand with a quick disassembly structure according to claim 9, characterized in that: The inner side of the lower end of the lower folded edge (23) is provided with a second conical surface (25) which gradually tilts inward from bottom to top, and the upper end of the outer side of the expansion piece (7) is pressed tightly against the second conical surface (25).

11. The display stand with a quick disassembly structure according to claim 10, characterized in that: A vertical first limiting protrusion (26) is provided on the inner peripheral wall of the rotating shaft (6), and the first limiting protrusion (26) is located in the notch (24).

12. The display stand with a quick disassembly structure according to claim 11, characterized in that: A pair of limiting strips (27) are provided at the lower part of the two side walls of the notch (24); the inner wall of the limiting strip (27) is integral with the inner peripheral wall of the shaft sleeve (21); and the thickness of the limiting strip (27) gradually decreases from bottom to top; the first limiting protrusion (26) extends downward from the upper end of the inner peripheral wall of the rotating shaft (6); and the protrusion thickness of the first limiting protrusion (26) gradually decreases from top to bottom; and a second limiting protrusion (26) is also provided on the inner peripheral wall of the rotating shaft (6). 8), the second limiting protrusion (28) extends upward from the lower end of the inner peripheral wall of the rotating shaft (6), and the upper part of the second limiting protrusion (28) is located on the inner wall of the first limiting protrusion (26), the protrusion thickness of the second limiting protrusion (28) gradually decreases from bottom to top, the second limiting protrusion (28) is located in the gap (24) between a pair of limiting strips (27), and the inner wall of the first limiting protrusion (26) is in contact with the outer wall of the corresponding limiting strip (27).

13. The display stand with a quick disassembly structure according to any one of claims 1 to 6, characterized in that: A circular arc-shaped limiting groove (29) is provided at the lower end of the connecting head (2) outside the rotating shaft (6), and a third limiting protrusion (30) is provided at the upper end of the rotating shaft seat (4). The third limiting protrusion (30) is movably located in the limiting groove (29).

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