Support leg structure of a bulletin board
By designing a detachable bolt-connected ground-mounted support leg structure, the problem of fixed installation position of the bulletin board was solved, enabling flexible installation and convenient disassembly, thus improving the ease of use and stability of the bulletin board.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LUYI PUBLIC FACILITIES CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-02
AI Technical Summary
The existing method of fixing bulletin boards requires the pre-fabrication of concrete foundations, resulting in a fixed installation location that is not conducive to flexibility and convenience.
Design a support leg structure including a ground-inserting end and a main body end, using a bolt-detachable connection. The ground-inserting end can be inserted into soft soil and fixed to the main body end by bolts, and the connection stability is improved by combining a limiter.
It enables flexible installation and convenient disassembly of the bulletin board, improving installation convenience and fixing firmness, and adapting to different environmental conditions.
Smart Images

Figure CN224318136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of support structure technology, and in particular to a support structure for a bulletin board. Background Technology
[0002] As an important platform for information dissemination and public awareness, bulletin boards play multiple roles, including transmitting information, publicizing policies and regulations, popularizing scientific knowledge, promoting social justice, enhancing the community's image, enriching community cultural life, and educating and guiding the public. They are widely used in various public places such as schools, communities, shopping malls, and parks.
[0003] The support legs are an important component of the bulletin board, playing a crucial role in supporting the main body and ensuring its stability and safety. A well-designed support leg structure ensures the bulletin board remains stable under different environmental conditions, extends its service life, and facilitates installation and maintenance.
[0004] For example, the utility model disclosed in announcement number CN222028776U discloses a public service information board, which has a frame with bolts on it. These bolts are used to fix the information board to a pre-installed concrete foundation on the ground, thus securing the information board to the external ground. However, this fixing method requires the pre-fabrication of the concrete foundation at the display location, and once the fixing location is determined, it is not easy to change, which is detrimental to improving the installation flexibility of the information board. Utility Model Content
[0005] In view of this, the present invention proposes a support leg structure for a bulletin board, which enables flexible installation of the bulletin board and improves its ease of use.
[0006] The technical solution of this utility model is implemented as follows: This utility model provides a support leg structure for a bulletin board, including a ground-inserting end, a main body end, and bolts. The ground-inserting end includes an outer tube and a positioning plate, and the main body end includes an inner tube and a fixing plate.
[0007] One end of the outer tube is pointed, and the other end is provided with a cavity;
[0008] The positioning plate is fixedly mounted on the outer tube, and a first connecting hole is provided inside it;
[0009] The inner tube is slidably disposed within the cavity;
[0010] The fixing plate is fixedly mounted on the inner tube and abuts against the positioning plate, and a second connecting hole is provided inside it;
[0011] The bolt is slidably disposed in the second connecting hole and the first connecting hole, and abuts against the positioning plate and the fixing plate.
[0012] More preferably, the first connecting hole is a round hole, and the second connecting hole is an elongated hole;
[0013] The first connecting hole is provided in multiple ways, and the multiple first connecting holes are arranged in a circumferential array around the axis of the inner tube. The second connecting hole and the bolt are provided in multiple ways, and each of them corresponds to one of the first connecting holes.
[0014] More preferably, the straight line passing through the center point of the second connecting hole and intersecting the axis of the inner tube is the connecting line, and the connecting line is perpendicular to the length direction of the second connecting hole;
[0015] The width of the second connecting hole is equal to the inner diameter of the first connecting hole.
[0016] More preferably, the bolt includes a threaded rod, a threaded head, and a nut, wherein,
[0017] The screw is slidably disposed within the first connecting hole and the second connecting hole;
[0018] The screw head is fixedly disposed at one end of the screw rod and abuts against the positioning plate;
[0019] The nut is threaded onto the screw and abuts against the fixing plate.
[0020] More preferably, the width of the second connecting hole is greater than the inner diameter of the first connecting hole;
[0021] The bolt also includes a limiter, which is disposed on the screw and engages with the second connecting hole.
[0022] More preferably, the limiter includes an upper locking strip and a lower locking strip, wherein,
[0023] The upper retaining strip is fitted onto the screw and slidably connected thereto, and the upper retaining strip is abutting between the nut and the fixing plate;
[0024] The lower clip is fixedly mounted on the upper clip and engages with the second connecting hole.
[0025] More preferably, the upper and lower card strips have the same shape and are arranged in a cross pattern.
[0026] Based on the above technical solutions, preferably, the cross-sections of the insertion end, the cavity, and the main body end are all circular.
[0027] Based on the above technical solutions, preferably, the cross-sections of the grounding end, the cavity, and the main body end are all rectangular.
[0028] The support structure for a bulletin board according to this utility model has the following advantages over the prior art:
[0029] 1. By setting the support leg structure to include a ground insertion end and a main body end, and making the two detachably fixed together with bolts, the bulletin board can be easily assembled and disassembled. By setting the ground insertion end to be pointed at one end, it can be easily inserted directly into relatively soft soil, which improves the ease of installation of the bulletin board. By setting a cavity and utilizing its sliding fit with the main body end, the connection stability of the support leg structure can be improved.
[0030] 2. By setting a limit switch, and utilizing its cooperation with the screw and the second connecting hole, the connection stability of the screw can be improved, preventing it from shaking, thereby improving the fixation of the bulletin board. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a perspective view of the support leg structure of a bulletin board according to the present invention, when the cross-section of the outer tube is rectangular.
[0033] Figure 2 This is a cross-sectional view of the support leg structure of a bulletin board according to the present invention;
[0034] Figure 3 This is a partial perspective view of the ground-inserting end of the support leg structure of a bulletin board according to the present invention;
[0035] Figure 4 This is an exploded view of the bolt location in the support leg structure of a bulletin board according to this utility model.
[0036] Figure 5 This is a perspective view of the support leg structure of a bulletin board according to the present invention, when the cross-section of the outer tube is circular.
[0037] The components are: 1. Grounding end; 11. Outer tube; 12. Positioning plate; 101. Cavity; 102. First connecting hole; 2. Main body end; 21. Inner tube; 22. Fixing plate; 201. Second connecting hole; 3. Bolt; 31. Screw; 32. Screw head; 33. Nut; 34. Limiter; 341. Upper retaining strip; 342. Lower retaining strip. Detailed Implementation
[0038] The technical solutions of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. 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.
[0039] like Figure 1 As shown, the present invention discloses a support leg structure for a bulletin board, including a ground-inserting end 1, a main body end 2, and bolts 3, which are used to support and fix the bulletin board. This support leg structure is a ground-inserting support leg structure, which is used for installation in a relatively soft environment. The texture of this environment is relatively soft compared to hardened ground or stone surface, rather than similar to the softness of wetland, thus achieving stable support for the bulletin board.
[0040] The main body end 2 is used to be fixedly connected to or integrally formed with the main structure of the bulletin board, and the ground insertion end 1 is used to be inserted into the external ground, such as... Figure 1 As shown, to improve the ease of inserting the grounding end 1 into the ground, one end of the grounding end 1 is designed to be pointed, such as... Figure 3 As shown, the other end of the insertion end 1 is provided with a cavity 101. After the insertion end 1 is inserted into the ground, the main body end 2 is slid into the cavity 101, and the main body end 2 and the insertion end 1 are fixedly connected by bolts 3, thereby improving the installation convenience of the bulletin board.
[0041] The ground-mounted support structure greatly improves the ease of installation of the bulletin board, while bolt 3 is a detachable connection method. By using the detachable operation of bolt 3, the main body of the bulletin board can be disassembled and assembled, thus facilitating the replacement or maintenance of the main body of the bulletin board.
[0042] like Figure 2 and Figure 4 As shown, the insertion end 1 includes an outer tube 11 and a positioning plate 12, and the main body end 2 includes an inner tube 21 and a fixing plate 22. One end of the outer tube 11 is pointed, and the other end is provided with a cavity 101. The positioning plate 12 is fixedly installed on the outer tube 11. The inner tube 21 is used to fix and connect to the main body of the bulletin board. The inner tube 21 is slidably installed in the cavity 101. The outer diameter of the inner tube 21 is preferably equal to the inner diameter of the cavity 101 to improve the sliding stability and anti-shaking performance of the inner tube 21. The fixing plate 22 is fixedly installed on the inner tube 21. When the main body end 2 is installed on the insertion end 1, the fixing plate 22 abuts against the top side of the positioning plate 12.
[0043] The positioning plate 12 has a first connecting hole 102 inside, and the fixing plate 22 has a second connecting hole 201 inside. The bolt 3 is slidably disposed in the second connecting hole 201 and the first connecting hole 102, and abuts against the side of the positioning plate 12 away from the fixing plate 22 and the side of the fixing plate 22 away from the positioning plate 12, thereby fixing the positioning plate 12 and the fixing plate 22 with the bolt 3.
[0044] To improve the stability and firmness of the connection between the main body end 2 and the grounding end 1, it is preferable to set multiple bolts 3, second connecting holes 201 and first connecting holes 102, and arrange multiple bolts 3, multiple second connecting holes 201 and multiple first connecting holes 102 in a circumferential array around the axis of the inner tube 21, and make them correspond one to one.
[0045] The cross-sectional shape of the support structure can be changed according to the purpose, style, and practicality of the bulletin board, such as... Figure 1 As shown, the cross-section of the support leg structure can be rectangular. In this case, the cross-sections of the ground insertion end 1, the cavity 101, and the main body end 2 are all rectangular; as shown... Figure 5 As shown, the cross-section of the support leg structure can also be circular. In this case, the cross-sections of the ground insertion end 1, the cavity 101, and the main body end 2 are all circular.
[0046] After the bolt 3 is inserted into the first connecting hole 102, in order to make it easier for the bolt 3 to be inserted into the second connecting hole 201, the first connecting hole 102 is set as a round hole, and the inner diameter of the second connecting hole 201 is larger than the inner diameter of the first connecting hole 102. Preferably, the second connecting hole 201 is set as an elongated hole.
[0047] Due to processing errors, the outer diameter of the inner tube 21 may be slightly smaller than the inner diameter of the outer tube 11. In this case, the bolt 3 may slide in the second connecting hole 201, which is not conducive to improving the stability of the bulletin board. To solve this problem, this utility model proposes two solutions, as follows.
[0048] The first solution is to make the width of the second connecting hole 201 equal to the inner diameter of the first connecting hole 102. Assuming that the straight line passing through the center point of the second connecting hole 201 and intersecting the axis of the inner tube 21 is the connecting line, and the connecting line is perpendicular to the length direction of the second connecting hole 201, when selecting bolts 3 that match the inner diameter of the first connecting hole 102, the cooperation of multiple bolts 3 with multiple first connecting holes 102 can prevent the bolts 3 from sliding in the second connecting hole 201.
[0049] The second solution is as follows: Figure 2As shown, the width of the second connecting hole 201 is greater than the inner diameter of the first connecting hole 102. The bolt 3 is configured to include a screw 31, a screw head 32, a nut 33, and a limiter 34. The screw 31 is slidably disposed in the first connecting hole 102 and the second connecting hole 201. The screw head 32 is fixedly disposed at one end of the screw 31 and abuts against the positioning plate 12. The nut 33 is threadedly connected to the screw 31 and abuts against the fixing plate 22. The limiter 34 is disposed on the screw 31 and can be fixed relative to the screw 31. The limiter 34 is engaged with the second connecting hole 201, so that the screw 31 can only slide along its axial direction in the second connecting hole 201 and cannot slide along its radial direction in the second connecting hole 201.
[0050] like Figure 4 As shown, the limiter 34 includes an upper retaining strip 341 and a lower retaining strip 342. The upper retaining strip 341 is sleeved on the screw 31 and slidably connected to it. The upper retaining strip 341 is abutting between the nut 33 and the fixing plate 22 to prevent the fixing plate 22 from being worn when the nut 33 rotates. The lower retaining strip 342 is fixedly mounted on the upper retaining strip 341 and engages with the second connecting hole 201 to achieve positioning of the screw 31.
[0051] like Figure 4 As shown, it is preferable that the upper retaining strip 341 and the lower retaining strip 342 have the same shape and are arranged in a cross pattern, so that the limiter 34 can be flipped over for use, thereby improving the ease of installation of the limiter 34.
[0052] The method of using the support leg structure of this utility model for a bulletin board is as follows:
[0053] First, place the outer tube 11 on the installation ground and hammer it so that the tip of the outer tube 11 is inserted into the ground. Then, insert the inner tube 21, which is connected to the main body of the bulletin board, into the cavity 101 and make the fixing plate 22 abut against the positioning plate 12. Finally, use bolts 3 to fix the fixing plate 22 and the positioning plate 12 to achieve the fixation of the bulletin board. During this process, if the ground is too soft, an appropriate amount of concrete can be used to reinforce the outer tube 11 and the ground.
[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A support leg structure for a bulletin board, characterized in that: It includes a grounding end (1), a main body end (2), and a bolt (3). The grounding end (1) includes an outer tube (11) and a positioning plate (12). The main body end (2) includes an inner tube (21) and a fixing plate (22). One end of the outer tube (11) is pointed, and the other end is provided with a cavity (101). The positioning plate (12) is fixedly installed on the outer tube (11), and a first connecting hole (102) is provided inside it. The inner tube (21) is slidably disposed within the cavity (101); The fixing plate (22) is fixedly installed on the inner tube (21) and abuts against the positioning plate (12), and a second connecting hole (201) is provided inside it. The bolt (3) is slidably disposed in the second connecting hole (201) and the first connecting hole (102), and abuts against the positioning plate (12) and the fixing plate (22).
2. The support leg structure of a bulletin board as described in claim 1, characterized in that: The first connecting hole (102) is a round hole, and the second connecting hole (201) is an elongated hole; Multiple first connecting holes (102) are provided, and multiple first connecting holes (102) are arranged in a circumferential array around the axis of the inner tube (21). Multiple second connecting holes (201) and bolts (3) are provided, and each corresponds to a first connecting hole (102).
3. The support leg structure of a bulletin board as described in claim 2, characterized in that: The straight line passing through the center point of the second connecting hole (201) and intersecting the axis of the inner tube (21) is the connecting line, and the connecting line is perpendicular to the length direction of the second connecting hole (201); The width of the second connecting hole (201) is equal to the inner diameter of the first connecting hole (102).
4. The support leg structure of a bulletin board as described in claim 2, characterized in that: The bolt (3) includes a screw (31), a screw head (32), and a nut (33), wherein, The screw (31) is slidably disposed within the first connecting hole (102) and the second connecting hole (201); The screw head (32) is fixedly disposed at one end of the screw (31) and abuts against the positioning plate (12); The nut (33) is threadedly connected to the screw (31) and abuts against the fixing plate (22).
5. The support leg structure of a bulletin board as described in claim 4, characterized in that: The width of the second connecting hole (201) is greater than the inner diameter of the first connecting hole (102); The bolt (3) also includes a limiter (34), which is disposed on the screw (31) and engages with the second connecting hole (201).
6. The support leg structure of a bulletin board as described in claim 5, characterized in that: The limiter (34) includes an upper locking strip (341) and a lower locking strip (342), wherein, The upper retaining strip (341) is fitted onto the screw (31) and slidably connected thereto, and the upper retaining strip (341) is abutting between the nut (33) and the fixing plate (22); The lower locking strip (342) is fixedly mounted on the upper locking strip (341) and engages with the second connecting hole (201).
7. The support leg structure of a bulletin board as described in claim 6, characterized in that: The upper card strip (341) and the lower card strip (342) have the same shape and are arranged in a cross pattern.
8. The support leg structure of a bulletin board as described in claim 1, characterized in that: The cross-sections of the ground insertion end (1), the cavity (101), and the main body end (2) are all circular.
9. The support leg structure of a bulletin board as described in claim 1, characterized in that: The cross-sections of the insertion end (1), the cavity (101), and the main body end (2) are all rectangular.