Quick mounting and dismounting connecting structure and display support frame thereof

Abstract

The utility model provides a kind of quick installation and disassembly connecting structure and its display support frame, it is related to display support technical field, wherein connecting structure includes: base, stand and slider;The bottom of stand is provided with jack, the bottom of jack is provided with first limit hole;Upwardly protruding setting is provided on base with connecting column;The top of connecting column is provided with second limit hole;After connecting column is inserted into the jack, the both ends of slider are respectively inserted into the first limit hole and second limit hole;The cross-sectional shape of the both ends of slider and first limit hole and second limit hole is adapted, and it is non-circular, for avoiding connecting column rotates along the circumferential direction of stand;Sliding limit structure is further provided between connecting column and stand, for avoiding connecting column slides along the length direction of stand relative to stand.The utility model design is ingenious, can realize the quick installation or disassembly of stand and base, after connection and fixation, both connection is stable, not easy to separate, improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of display support technology, and in particular to a quick-installation and disassembly connection structure and its display support frame. Background Technology

[0002] Currently, various displays are widely used in modern life. Among them, LCD displays have become the mainstream product. LCD displays are a type of display that is almost panel-shaped. They cannot stand on their own and must be supported by support devices such as support frames to be used.

[0003] Most existing support frames are sold in a disassembled state, with the base and uprights separated, to facilitate transportation and reduce packaging volume. However, consumers then need to assemble them themselves after receiving the product. This results in a relatively complex structure and a cumbersome assembly process. Utility Model Content

[0004] The purpose of this utility model is to provide a quick-installation and disassembly connection structure and its display support frame to solve at least one of the above-mentioned technical problems existing in the prior art.

[0005] To solve the above-mentioned technical problems, this utility model provides a quick installation and disassembly connection structure, including: a base, a column, and a slider;

[0006] The bottom of the column is provided with an insertion hole, and the bottom of the insertion hole is provided with a first limiting hole;

[0007] The base is provided with an upwardly protruding connecting post; the top of the connecting post is provided with a second limiting hole;

[0008] After the connecting post is inserted into the insertion hole, both ends of the slider are respectively inserted into the first limiting hole and the second limiting hole;

[0009] The two ends of the slider are adapted to the cross-sectional shape of the first limiting hole and the second limiting hole, and are non-circular, in order to prevent the connecting column from rotating along the circumference of the column.

[0010] A sliding limit structure is also provided between the connecting column and the upright column to prevent the connecting column from sliding relative to the upright column along the length direction of the upright column.

[0011] Furthermore, the slider can be slidably inserted into the limiting hole along the length direction (or height direction) of the column.

[0012] Furthermore, it also includes a compression spring, which is disposed in the first limiting hole, with its two ends abutting against the top of the slider and the bottom of the first limiting hole, respectively. When the compression spring is compressed, it tends to force the lower end of the slider to extend out of the first limiting hole and then into the second limiting hole.

[0013] Furthermore, the sliding limiting structure includes a positioning groove provided on the outer circle of the connecting column or the side wall of the column insertion hole, and a limiting protrusion on the side wall of the column insertion hole or the outer circle of the connecting column.

[0014] Preferably, the positioning groove is L-shaped and includes a guide section along the length of the connecting post and a transverse section perpendicular to the guide section and arranged circumferentially along the connecting post or the insertion hole. During the insertion of the connecting post into the insertion hole, the limiting protrusion first slides relative to the guide section. After the connecting post is inserted into place and the limiting protrusion slides to the bottom of the guide section, the limiting protrusion slides into the transverse section by rotating the base and the connecting post. The limiting protrusion and the transverse section engage with each other to prevent the connecting post from sliding relative to the post along the length of the post.

[0015] Preferably, the limiting protrusion is a limiting pin or a limiting screw, which is inserted radially into the insertion hole and the positioning groove on the outer circle of the connecting column through the pin hole on the column.

[0016] Preferably, a blind hole is provided on the side wall of the connecting post or column insertion hole, the limiting protrusion is a pin inserted into the blind hole, a spring is provided in the blind hole, and the spring tends to force the front end of the pin to extend out of the blind hole and then insert into the positioning groove.

[0017] Furthermore, it also includes a push rod, and the connecting column is provided with a through hole that connects its bottom surface and the second limiting hole. The push rod extends from the bottom into the through hole, passes through the hole into the second limiting hole, and then abuts against the bottom of the slider to force the lower end of the slider to exit the second limiting hole.

[0018] Furthermore, a limiting structure is provided between the top rod and the connecting post to prevent the top rod from detaching from the connecting post.

[0019] The limiting structure is existing technology and comes in various forms. For example, a limiting platform with radial protrusion is provided on the base, and the compression spring tends to force the top rod to move downward through the slider, thereby abutting against the limiting platform to prevent the top rod from falling out of the through hole.

[0020] Furthermore, the base includes a chassis and a chassis connector. The chassis connector includes an integrally formed disc body and a connecting column. The connecting column stands on the disc body and is detachably connected to the chassis through the disc body.

[0021] Furthermore, the lower end of the top rod is provided with a button in the shape of an end cap, and the lower port edge of the through hole is provided with a countersunk hole, and the button is slidably disposed in the countersunk hole.

[0022] Preferably, the bottom of the disc body and the lower port edge of the through hole are provided with the countersunk hole; a radially protruding limiting platform is provided at the upper end of the button part; the base also includes a first cover plate, which is detachably fixed to the bottom of the disc body by fasteners such as screws, the button part protrudes from the middle hole of the first cover plate, and the limiting platform abuts against the inner side of the first cover plate under the action of the compression spring to prevent the push rod from falling out of the through hole.

[0023] Similarly, the upper end of the slider is a relatively thick section, and the lower end of the slider is a relatively thin section; it also includes a second cover plate, which is detachably fixed to the bottom of the insertion hole by fasteners such as screws. Under the action of the compression spring, the thin section of the slider tends to extend out from the middle hole of the second cover plate and into the first limiting hole; the thick section of the slider abuts against the inner end face of the second cover plate under the action of the compression spring to prevent the slider from detaching from the first limiting hole;

[0024] Alternatively, the slider can be a rectangular or other polygonal cylinder with guide protrusions on one side or opposite sides. The guide protrusions are adapted to the guide grooves on the sidewall of the socket. Under the action of the compression spring, the slider tends to slide downwards. Under the action of the compression spring, the guide protrusions abut against the inner end face of the second cover plate to prevent the slider from disengaging from the first limiting hole.

[0025] More preferably, it also includes a plug-in block, the bottom of which is provided with the plug hole, and the bottom of the column is provided with a mounting hole; the plug-in block is detachably inserted into the mounting hole. That is, preferably, the above-mentioned quick-installation and disassembly connection structure is provided between the plug-in block and the base, and the column is indirectly connected to the base through the plug-in block.

[0026] The cross-sectional shape of the slider or plug can be square, triangular, pentagonal, hexagonal, or other polygons.

[0027] The overall plug-in block is wedge-shaped, with a thinner top and a thicker bottom. Correspondingly, the mounting holes are also wedge-shaped, with a thinner top and a thicker bottom, which facilitates quick insertion of both parts and makes the connection more secure.

[0028] Taking the L-shaped positioning groove as an example, during installation, the connecting post is inserted into the insertion hole. During the insertion process, the limiting protrusion slides relative to the guide section. After the connecting post is inserted into place and the limiting protrusion slides to the bottom of the guide section, the base and the connecting post are rotated, and the limiting protrusion slides into the transverse section. The limiting protrusion and the transverse section are engaged with each other. At the same time, under the action of the compression spring, the lower end of the slider is inserted into the second limiting hole, thereby fixing the connecting post and the column relative to each other in both the length and circumferential directions, thus achieving a fixed connection between the column and the base.

[0029] When disassembly is required, press the top rod to force the lower end of the slider to exit the second limiting hole. At this time, the connecting column can rotate relative to the column and its insertion hole. Rotate the connecting column in the opposite direction to make the limiting protrusion return to the guide section in the transverse direction. Then pull the connecting column out of the insertion hole to achieve quick disassembly.

[0030] The second aspect of this application discloses a monitor support frame with the aforementioned quick-installation and disassembly connection structure.

[0031] By adopting the above technical solution, this utility model has the following beneficial effects:

[0032] This utility model provides a quick-installation and disassembly connection structure and its display support frame, which is ingeniously designed to enable quick installation or disassembly of the column and base. After the connection is fixed, the two are firmly connected and not easy to detach, thus improving the user experience. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 A perspective view of the quick-installation and disassembly connection structure provided in the embodiments of this utility model;

[0035] Figure 2 for Figure 1 A second-view perspective perspective of the quick-installation and disassembly connection structure shown.

[0036] Figure 3 for Figure 1 The front view of the quick-installation and disassembly connection structure shown;

[0037] Figure 4 for Figure 3 BB section view;

[0038] Figure 5 This is a schematic diagram of the structure of the base and its positioning groove in this utility model;

[0039] Figure 6 for Figure 5 Exploded view of the base;

[0040] Figure 7 This is a schematic diagram showing the state before the connecting post is inserted into the bottom of the socket and touches the slider, and before the slider is inserted into the second limiting hole.

[0041] Figure 8 This is a schematic diagram showing the state after the connecting post is inserted into the bottom of the socket and touches the slider, and the slider is inserted into the second limiting hole.

[0042] Figure 9 This is an exploded view of the plug-in block.

[0043] Figure label:

[0044] 1-Compression spring; 2-Limiting protrusion; 3-Second cover plate; 10-Base; 11-Connecting column; 11a-Second limiting hole; 11b-Through hole; 11c-Counterpart hole; 12-Positioning groove; 12a-Guide section; 12b-Transverse section; 13-Chassis; 14-Disc body; 15-Chassis connector; 16-First cover plate; 20-Column; 21-Plug-in block; 22-Plug-in hole; 23-First limiting hole; 30-Slider; 31-Thick section; 32-Thin section; 33-Guide protrusion; 40-Top rod; 41-Button part; 42-Limiting platform. Detailed Implementation

[0045] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0046] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0048] The present invention will be further explained below with reference to specific embodiments.

[0049] like Figure 1-4 As shown, this embodiment provides a quick installation and disassembly connection structure, including: a base 10, a column 20 and a slider 30; wherein, the base 10 and the column 20 are typically components, including an intermediate main body, an outer shell and other intermediate connecting parts, etc.

[0050] The bottom of the column 20 is provided with an insertion hole 22, and the bottom of the insertion hole 22 is provided with a first limiting hole 23;

[0051] The base 10 is provided with an upwardly protruding connecting post 11; the top of the connecting post 11 is provided with a second limiting hole 11a;

[0052] After the connecting post 11 is inserted into the insertion hole 22, the two ends of the slider 30 are respectively inserted into the first limiting hole 23 and the second limiting hole 11a;

[0053] The two ends of the slider 30 are adapted to the cross-sectional shape of the first limiting hole 23 and the second limiting hole 11a, and are non-circular, in order to prevent the connecting column 11 from rotating along the circumference of the column 20.

[0054] A sliding limit structure is also provided between the connecting column 11 and the column 20 to prevent the connecting column 11 from sliding relative to the column 20 along the length direction of the column 20.

[0055] Preferably, the slider 30 is slidably inserted into the limiting hole along the length (or height) direction of the column 20. This embodiment also includes a compression spring 1, which is disposed in the first limiting hole 23, with its two ends abutting against the top of the slider 30 and the bottom of the first limiting hole 23, respectively. When the compression spring 1 is compressed, it tends to force the lower end of the slider 30 to extend out of the first limiting hole 23 and then into the second limiting hole 11a.

[0056] The sliding limiting structure preferably includes a positioning groove 12 provided on the outer circle of the connecting column 11 or on the side wall of the insertion hole 22 of the column 20, and a limiting protrusion 2 on the side wall of the insertion hole 22 of the column 20 or on the outer circle of the connecting column 11.

[0057] Preferably, see Figure 5As shown, the positioning groove 12 is preferably L-shaped, including a guide section 12a arranged along the length of the connecting post 11, and a transverse section 12b perpendicular to the guide section 12a and arranged circumferentially along the connecting post 11 or the insertion hole 22. The upper end of the guide section 12a extends to the top surface above the connecting post 11 and extends downward to communicate with the transverse section 12b. During the insertion of the connecting post 11 into the insertion hole 22, the limiting protrusion 2 first slides relative to the guide section 12a. After the connecting post 11 is inserted into place and the limiting protrusion 2 slides to the bottom of the guide section 12a, the limiting protrusion 2 slides into the transverse section 12b by rotating the base 10 and the connecting post 11. The limiting protrusion 2 and the transverse section 12b engage with each other to prevent the connecting post 11 from sliding relative to the column 20 along the length of the column 20.

[0058] Preferably, the limiting protrusion 2 is a limiting pin or a limiting screw. The limiting pin or the limiting screw is inserted radially into the insertion hole 22 and the positioning groove 12 on the outer circle of the connecting column 11 through the pin hole (preferably a threaded hole) on the column 20. Preferably, the pin hole is a threaded hole. After the limiting screw, which is the limiting protrusion 2, is screwed into the threaded hole, its top extends into the positioning groove 12.

[0059] The limiting protrusion 2 can take many forms. For example, a blind hole is provided on the side wall of the insertion hole 22 of the connecting column 11 or the column 20. The limiting protrusion 2 is a pin inserted into the blind hole. A spring is provided in the blind hole. The spring tends to force the front end of the pin to extend out of the blind hole and then insert into the positioning groove 12.

[0060] This embodiment also includes a push rod 40. The connecting column 11 has a through hole 11b that connects its bottom surface and the second limiting hole 11a. The push rod 40 extends from the bottom of the base 10 into the through hole 11b, passes through the hole 11b into the second limiting hole 11a, and then abuts against the bottom of the slider 30 to force the lower end of the slider 30 out of the second limiting hole 11a. When the slider 30 exits the second limiting hole 11a, the connecting column 11 and the base 10 can rotate relative to the column 20.

[0061] Preferably, a limiting structure is provided between the push rod 40 and the connecting post 11 to prevent the push rod 40 from disengaging from the connecting post 11. This limiting structure is existing technology and can take various forms. For example, the base 10 may have a radially protruding limiting platform, and the compression spring 1, via the slider 30, tends to force the push rod 40 downwards, thereby pressing it against the limiting platform to prevent the push rod 40 from falling out of the through hole 11b.

[0062] See Figure 5 and 6As shown, the base 10 in this embodiment includes a chassis 13 and a chassis connector 15. The chassis connector 15 includes an integrally formed disc body 14 and the connecting post 11. The connecting post 11 is erected on the disc body 14 and is detachably connected to the main body chassis 13 of the base 10 through the disc body 14.

[0063] The lower end of the push rod 40 is provided with a cap-shaped button part 41, and the lower port edge of the through hole 11b is provided with a countersunk hole 11c, in which the button part 41 is slidably disposed. Preferably, the bottom of the disc body 14 and the lower port edge of the through hole 11b are provided with the countersunk hole 11c; a radially protruding limiting platform 42 is provided at the upper end of the button part 41; the base 10 also includes a first cover plate 16, which is detachably fixed to the bottom of the disc body 14 by screws or other fasteners, the button part 41 protrudes from the middle hole of the first cover plate 16, and the limiting platform 42 abuts against the inner side of the first cover plate 16 under the action of the compression spring 1 to prevent the push rod 40 from falling out of the through hole.

[0064] Similarly, the upper end of the slider 30 is a relatively thick section 31, and the lower end of the slider 30 is a relatively thin section 32; it also includes a second cover plate 3, which is detachably fixed to the bottom of the insertion hole 22 by screws or other fasteners. Under the action of the compression spring 1, the thin section 32 of the slider 30 tends to extend out from the middle hole of the second cover plate 3 and into the first limiting hole 23; the thick section 31 of the slider 30 abuts against the inner end face of the second cover plate 3 under the action of the compression spring 1, preventing the slider 30 from disengaging from the first limiting hole 23. Or, see Figure 5 and 7 As shown in Figure 9, the slider 30 is a rectangular or other polygonal prism with guide protrusions 33 on one side or opposite sides. The guide protrusions 33 are adapted to the guide grooves on the side wall of the insertion hole 22. Under the action of the compression spring 1, the slider 30 tends to slide downward. Under the action of the compression spring 1, the guide protrusions 33 abut against the inner end face of the second cover plate 3 to prevent the slider 30 from disengaging from the first limiting hole 23.

[0065] More preferably, the column 20 also includes a column body (not shown) and a plug-in block 21, see [link to relevant documentation]. Figure 4 and 9 As shown, the bottom of the plug-in block 21 is provided with the plug hole 22, and the bottom of the column 20 is provided with a mounting hole; the plug-in block 21 is detachably inserted into the mounting hole. Preferably, the above-mentioned quick-installation and disassembly connection structure is provided between the plug-in block 21 and the base 10, and the column 20 is indirectly connected to the base 10 through the plug-in block 21. Furthermore, the top surface of the slider 30 and the bottom of the plug hole 22 of the plug-in block 21 are preferably provided with plug holes, and the two ends of the compression spring 1 are respectively inserted into the plug holes of the two components for positioning.

[0066] The cross-sectional shape of the slider 30 or the plug-in block 21 can be square, triangular, pentagonal, hexagonal, or other polygonal shapes. Overall, the plug-in block 21 is wedge-shaped with a narrow top and a wide bottom. Correspondingly, the mounting holes are wedge-shaped with a narrow top and a wide bottom, which facilitates quick insertion of both and makes the connection more secure.

[0067] See Figure 7 and 8 As shown, taking the L-shaped positioning groove 12 as an example, during installation, the connecting post 11 is inserted into the insertion hole 22. During the insertion process, the limiting protrusion 2 slides relative to the guide section 12a. After the connecting post 11 is inserted into place and the limiting protrusion 2 slides to the bottom of the guide section 12a, by rotating the base 10 and the connecting post 11, the limiting protrusion 2 slides into the transverse section 12b. The limiting protrusion 2 and the transverse section 12b are engaged with each other. At the same time, under the action of the compression spring 1, the lower end of the slider 30 is inserted into the second limiting hole 11a, thereby fixing the connecting post 11 and the column 20 relative to each other in both the length direction and the circumference direction, thus realizing the fixed connection between the column 20 and the base 10.

[0068] When disassembly is required, press the top rod 40 to force the lower end of the slider 30 to exit the second limiting hole 11a. At this time, the connecting post 11 can rotate relative to the column 20 and its insertion hole 22. Rotate the connecting post 11 in the opposite direction so that the limiting protrusion 2 and the transverse section 12b retract into the guide section 12a. Then pull the connecting post 11 out of the insertion hole 22 to achieve quick disassembly.

[0069] The second aspect of this application discloses a monitor support frame with the aforementioned quick-installation and disassembly connection structure.

[0070] This utility model is ingeniously designed to enable quick installation or disassembly of the column 20 and the base 10. Once connected and fixed, the two are firmly connected and not easily separated, thus improving the user experience.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A quick-installation and disassembly connection structure, characterized in that, include: Base, column, and slider; The bottom of the column is provided with an insertion hole, and the bottom of the insertion hole is provided with a first limiting hole; The base is provided with an upwardly protruding connecting post; the top of the connecting post is provided with a second limiting hole; After the connecting post is inserted into the insertion hole, both ends of the slider are respectively inserted into the first limiting hole and the second limiting hole; The two ends of the slider are adapted to the cross-sectional shape of the first limiting hole and the second limiting hole, and are non-circular, in order to prevent the connecting column from rotating along the circumference of the column. A sliding limit structure is also provided between the connecting column and the upright column to prevent the connecting column from sliding relative to the upright column along the length direction of the upright column.

2. The quick-installation and disassembly connection structure according to claim 1, characterized in that, The slider can be slidably inserted into the limiting hole along the length of the column.

3. The quick-installation and disassembly connection structure according to claim 2, characterized in that, It also includes a compression spring, which is disposed in the first limiting hole, with its two ends abutting against the top of the slider and the bottom of the first limiting hole, respectively. When the compression spring is compressed, it tends to force the lower end of the slider to extend out of the first limiting hole and then into the second limiting hole.

4. The quick-installation and disassembly connection structure according to claim 1, characterized in that, The sliding limiting structure includes a positioning groove provided on the outer circle of the connecting column or the side wall of the column insertion hole, and a limiting protrusion on the side wall of the column insertion hole or the outer circle of the connecting column.

5. The quick-installation and disassembly connection structure according to claim 4, characterized in that, The positioning groove is L-shaped and includes a guide section along the length of the connecting post and a transverse section perpendicular to the guide section and arranged circumferentially along the connecting post or the insertion hole. During the insertion of the connecting post into the insertion hole, the limiting protrusion first slides relative to the guide section. After the connecting post is inserted into place and the limiting protrusion slides to the bottom of the guide section, the limiting protrusion slides into the transverse section by rotating the base and the connecting post. The limiting protrusion and the transverse section engage with each other to prevent the connecting post from sliding relative to the post along the length of the post.

6. The quick-installation and disassembly connection structure according to claim 5, characterized in that, The limiting protrusion is a limiting pin or a limiting screw. The limiting pin or limiting screw is inserted radially into the insertion hole and the positioning groove on the outer circle of the connecting column through the pin hole on the column.

7. The quick-installation and disassembly connection structure according to claim 5, characterized in that, A blind hole is provided on the side wall of the connecting column or column insertion hole. The limiting protrusion is a pin inserted into the blind hole. A spring is provided in the blind hole. The spring tends to force the front end of the pin to extend out of the blind hole and then insert into the positioning groove.

8. The quick-installation and disassembly connection structure according to claim 1, characterized in that, It also includes a push rod, and the connecting column is provided with a through hole that connects its bottom surface and the second limiting hole. The push rod extends from the bottom into the through hole, passes through the hole into the second limiting hole, and then abuts against the bottom of the slider to force the lower end of the slider to exit the second limiting hole.

9. The quick-installation and disassembly connection structure according to claim 8, characterized in that, A limiting structure is provided between the top rod and the connecting column to prevent the top rod from detaching from the connecting column.

10. The quick-installation and disassembly connection structure according to claim 9, characterized in that, The base includes a chassis and a chassis connector. The chassis connector includes an integrally formed disc body and a connecting column. The connecting column stands on the disc body and is detachably connected to the chassis through the disc body.

11. The quick-installation and disassembly connection structure according to claim 10, characterized in that, The lower end of the top rod is provided with a button part in the shape of an end cap, and the lower port edge of the through hole is provided with a countersunk hole, and the button part is slidably disposed in the countersunk hole.

12. The quick-installation and disassembly connection structure according to claim 11, characterized in that, The bottom of the disc body and the lower port edge of the through hole are provided with the countersunk hole; a radially protruding limiting platform is provided at the upper end of the button part; the base also includes a first cover plate, which is detachably fixed to the bottom of the disc body by fasteners, the button part is exposed from the middle hole of the first cover plate, and the limiting platform abuts against the inner side of the first cover plate under the action of the compression spring to prevent the push rod from falling out of the through hole.

13. The quick-installation and disassembly connection structure according to claim 1, characterized in that, The upper end of the slider is a relatively thick section, and the lower end of the slider is a relatively thin section; it also includes a second cover plate, which is detachably fixed to the bottom of the insertion hole by fasteners. Under the action of the compression spring, the thin section of the slider tends to extend out from the middle hole of the second cover plate and into the first limiting hole; the thick section of the slider abuts against the inner end face of the second cover plate under the action of the compression spring to prevent the slider from detaching from the first limiting hole. Alternatively, the slider can be a polygonal cylinder with guide protrusions on one side or opposite sides. The guide protrusions are adapted to the guide grooves on the side wall of the socket. Under the action of the compression spring, the slider tends to slide downwards. Under the action of the compression spring, the guide protrusions abut against the inner end face of the second cover plate to prevent the slider from disengaging from the first limiting hole.

14. The quick-installation and disassembly connection structure according to claim 1, characterized in that, It also includes a plug-in block, the bottom of which is provided with the plug hole, and the bottom of the column is provided with a mounting hole; the plug-in block is detachably inserted into the mounting hole.

15. A display support frame, characterized in that, It has the quick-installation and disassembly connection structure as described in any one of claims 1-14.

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