Connecting structure for table legs and supporting plate of billiard table

Abstract

The utility model discloses a connecting structure of table legs and a supporting plate of a billiard table, and belongs to the technical field of billiard tables. A first groove is formed in the outer end face of the supporting plate; the first fastener is provided with a plane end and a threaded hole, and the first fastener is embedded in the first groove; connecting through holes are formed in the table legs of the billiard table and the supporting plate; a screw of the bolt penetrates through the connecting through hole and is in threaded connection with the threaded hole in the first fastener, so that the plane end of the first fastener is attached to the plane wall of the first groove, and the head of the bolt is connected to the table leg of the billiard table in a pressed mode. In this way, the first fastener is embedded in the first groove, and the reliability of the connecting structure can be enhanced; the plane end of the first fastener is attached to the plane wall of the first groove to form surface contact instead of only point or line contact, so that the contact area between the first fastener and the first groove is increased, and the connection stability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of billiard tables, and in particular relates to a connection structure between billiard table legs and a supporting plate. Background Art

[0002] At present, the legs of a billiard table are connected to the support plate by bolts, and then a rectangular frame is formed by multiple legs and four support plates to support the billiard table top composed of multiple stone slabs. As a common indoor sports facility, the stability and durability of the connection structure between the billiard table legs and the support plate are crucial to providing a good gaming experience. The traditional connection method between the billiard table legs and the support plate is usually connected by semi-cylindrical nuts and bolts. Figure 1 What is shown is an existing connection structure of a leg and a support plate, including an upper support plate 101 and a lower support leg 102. The support plate 101 and the support leg 102 have cylindrical connection holes. The screw rod of the bolt 103 is passed through the cylindrical connection hole and is threadedly connected to a semi-cylindrical nut 105 provided in a support plate groove 104. The head of the bolt 103 is pressed tightly against the support leg 102.

[0003] However, Figure 1 The connection method in the embodiment has a technical problem of small contact area, because the curved surface of the semi-cylindrical nut 105 is difficult to completely match the curvature of the inner wall of the curved surface of the support plate groove 104, so that the curved surface of the semi-cylindrical nut 105 and the inner wall of the curved surface of the support plate groove 104 are usually point contact or line contact, and the contact area is very small, which limits the bearing capacity of the connection structure and is also prone to cause local deformation when subjected to force. During long-term use, since the billiard table is often subjected to the impact force from the cue and the handling of the billiard table itself, the traditional connection method may cause the connection to gradually loosen, affecting the stability of the billiard table. Utility Model Content

[0004] In view of this, the utility model provides a connection structure between the legs and the support plate of a billiard table, which solves the technical problem that the stability of the billiard table is affected by the small contact area between the legs and the support plate of a traditional billiard table.

[0005] The utility model adopts the following technical solutions:

[0006] A connection structure between a billiard table leg and a support plate, comprising a billiard table leg, a support plate, a first fastener and a bolt;

[0007] A first groove is provided on the outer end surface of the support plate;

[0008] The first fastener is provided with a flat end and a threaded hole, and the first fastener is embedded in the first groove;

[0009] The billiard table legs and the support plate are provided with connecting through holes;

[0010] The screw rod of the bolt is passed through the connecting through hole and is threadedly connected with the threaded hole on the first fastener, so that the plane end of the first fastener fits with the plane wall of the first groove, and the head of the bolt is crimped to the billiard table leg.

[0011] Furthermore, the first fastener is also provided with a curved end;

[0012] The curved surface ends are symmetrically arranged on both sides of the flat surface end of the fastener;

[0013] The curved surface end of the first fastener is in contact with the curved surface wall of the first groove.

[0014] Further, the thickness of the plane end of the first fastener is greater than the thickness of the curved end;

[0015] The curved surface end has a predetermined elastic deformation capability and can be fitted with the curved surface wall of the first groove by applying prestress during assembly.

[0016] Further, the first fastener is provided with a positioning flange;

[0017] The positioning flange is in contact with the outer end surface of the support plate and is used to position the depth of the first fastener embedded in the first groove.

[0018] Furthermore, it also includes an anti-loosening member;

[0019] The anti-loosening member is pressed onto the billiard table leg by the head of the bolt.

[0020] Furthermore, the anti-loosening component is a spring washer.

[0021] Further, it also includes a second fastener;

[0022] The second fastener is provided with a bottom wall and a side wall, the side wall is provided on the bottom wall to form a cap-shaped structure with one end open, and an anti-slip protrusion is provided on the inner side of the bottom wall, and a through hole is provided in the middle of the bottom wall;

[0023] The spring washer is accommodated in the second fastener and is located on the anti-slip protrusion;

[0024] The outer side of the bottom wall of the second fastener is pressed against the billiard table leg by the head of the bolt.

[0025] Furthermore, the anti-slip protrusions are distributed radially.

[0026] Further, the billiard table legs are provided with a second groove;

[0027] The second fastener is accommodated in the second groove, and the opening of the second fastener faces away from the first fastener.

[0028] Beneficial effects:

[0029] 1. A first groove is provided on the outer end surface of the support plate; a first fastener is provided with a plane end and a threaded hole, and the first fastener is embedded in the first groove; a connecting through hole is provided on the leg and the support plate of the billiard table; a screw of the bolt is passed through the connecting through hole and is threadedly connected with the threaded hole on the first fastener, so that the plane end of the first fastener fits with the plane wall of the first groove, and the head of the bolt is crimped to the leg of the billiard table.

[0030] In this way, the first fastener is embedded in the first groove, which can enhance the reliability of the connection structure; the planar end of the first fastener fits against the planar wall of the first groove to form surface contact rather than just point or line contact, which increases the contact area between the first fastener and the first groove, thereby improving the stability of the connection.

[0031] 2. The first fastener is also provided with a curved surface end; the curved surface ends are symmetrically arranged on both sides of the plane end of the fastener; the curved surface end of the first fastener is in contact with the curved surface wall of the first groove.

[0032] In this way, since the curved end fits the curved wall of the first groove, the fastening force can be distributed more evenly and local stress concentration can be reduced, which helps to improve the fastening strength of the entire connection structure; the design of the curved end helps to further lock the position of the first fastener in the first groove, so that the first fastener and the first groove are tightly matched, reducing loosening caused by vibration or impact, thereby improving the anti-loosening performance of the connection.

[0033] 3. The thickness of the plane end of the first fastener is greater than the thickness of the curved end; the curved end has a predetermined elastic deformation capacity and can be fitted with the curved wall of the first groove by applying prestress during assembly.

[0034] In this way, the thicker design of the plane end can provide greater fastening force, ensuring that the first fastener is not easily damaged even under high load; the elastic curved end can adapt to the specific shape of the first groove through elastic deformation, which facilitates installation and disassembly and improves installation efficiency; the elastic curved end can be slightly adjusted according to the actual situation of the support plate to improve the adaptability of the connection structure; the thickness of the plane end and the curved end, as well as the elasticity of the curved end can be adjusted as needed to adapt to different design requirements and application scenarios.

[0035] 4. A positioning flange is provided on the first fastener; the positioning flange is in contact with the outer end surface of the support plate and is used to position the depth of the first fastener embedded in the first groove.

[0036] In this way, the positioning flange fits with the outer end surface of the support plate, which can ensure that the embedding depth of the first fastener in the first groove remains consistent, so that the threaded hole on the first fastener is coaxial with the billiard table leg and the connecting through hole on the support plate, ensuring smooth assembly; there will inevitably be errors in the position of the threaded hole opening on the first fastener, and the setting of the positioning flange makes the outer end surface of the support plate serve as the positioning reference surface of the threaded hole.

[0037] 5. The connection structure between the billiard table legs and the support plate also includes an anti-loosening member. The combination of the anti-loosening member and the first fastener can effectively prevent the first fastener from loosening due to vibration during the use of the billiard table, thereby improving the reliability of the connection structure.

[0038] 6. The second fastener is provided with a bottom wall and a side wall, the side wall is provided on the bottom wall to form a cap-like structure with one end open, and an anti-slip protrusion is provided on the inner side of the bottom wall, and a through hole is provided in the middle of the bottom wall; the spring washer is accommodated in the second fastener and is located on the anti-slip protrusion; the second fastener is crimped to the leg of the billiard table, and the opening of the second fastener faces the side away from the first fastener.

[0039] In this way, the presence of the anti-slip protrusion on the inner side of the bottom wall increases the friction between the spring washer and the second fastener, making the spring washer less likely to loosen, thereby improving the fastening effect of the overall connection; the elastic deformation of the spring washer can generate a pre-tightening force, and the anti-slip protrusion helps to maintain this pre-tightening state, preventing the pre-tightening force from decreasing due to the displacement of the spring washer; the cap-shaped structure of the second fastener provides a stable accommodation space for the spring washer, protecting the spring washer from damage, while ensuring that the anti-loosening function of the spring washer is fully exerted.

[0040] 7. The anti-slip protrusions are distributed radially, which can increase the contact area between the anti-slip protrusions and the spring washers, increase friction, and thus enhance the anti-loosening effect.

[0041] 8. The legs of the billiard table are provided with a second groove; the second fastener is accommodated in the second groove, and the opening of the second fastener faces away from the first fastener. In this way, the second fastener is located in the second groove, which increases the stability of the connection structure because the second fastener is given additional support; the second groove provides a fixed position for the second fastener, reducing the displacement of the second fastener due to external force or vibration, thereby reducing the risk of loosening of the spring washer and the entire connection structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the connection structure between the billiard table legs and the support plate in the prior art;

[0043] Figure 2 It is a schematic diagram of the connection structure between the legs and the support plate of the billiard table provided by the utility model;

[0044] Figure 3 yes Figure 1 Schematic diagram of the structure after removing the connected support plate;

[0045] Figure 4 yes Figure 1 Structural schematic diagram of the middle support plate;

[0046] Figure 5 yes Figure 1 Schematic diagram of the assembly structure of the connecting parts;

[0047] Figure 6 yes Figure 4 A schematic structural diagram of a first fastener from one perspective;

[0048] Figure 7 yes Figure 4 A schematic structural diagram of the first fastener from another perspective;

[0049] Figure 8 yes Figure 4 A schematic diagram of the structure of the second fastener;

[0050] Fig. 9 yes Figure 4 Schematic diagram of the structure of the middle spring washer;

[0051] Among them, 1 is the billiard table leg; 2 is the support plate; 3 is the first fastener; 4 is the bolt; 5 is the connecting hole; 6 is the first groove; 7 is the flat end; 8 is the curved end; 9 is the thickened protrusion; 10 is the positioning flange; 11 is the spring washer; 12 is the second fastener; 13 is the anti-slip protrusion; 14 is the second groove; 101 is the support plate; 102 is the support leg; 103 is the bolt; 104 is the support plate groove; 105 is the semi-cylindrical nut. DETAILED DESCRIPTION

[0052] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0053] Reference Figure 2 to Figure 9 This embodiment provides a connection structure between a billiard table leg 1 and a support plate 2, comprising a billiard table leg 1, a support plate 2, a first fastener 3 and a bolt 4, wherein:

[0054] Reference Figure 2 to Figure 5A first groove 6 is provided on the outer end surface of the support plate 2; the first fastener 3 is provided with a plane end and a threaded hole, the first fastener 3 is embedded in the first groove 6, and the plane end 7 of the first fastener 3 is in contact with the inner wall of the first groove 6 (more specifically, the plane end 7 of the first fastener 3 is in contact with the plane wall of the first groove 6); connecting through holes are provided on the billiard table leg 1 and the support plate 2, the screw of the bolt 4 is passed through the connecting through holes on the billiard table leg 1 and the support plate 2, and is threadedly connected with the threaded hole on the first fastener 3, and the head of the bolt 4 is crimped to the billiard table leg 1.

[0055] In this way, the first fastener 3 is embedded in the first groove 6, which can enhance the reliability of the connection structure; the planar end of the first fastener 3 fits against the planar wall of the first groove 6 to form surface contact rather than just point or line contact, which increases the contact area between the first fastener 3 and the first groove 6, thereby improving the stability of the connection.

[0056] As an improvement, refer to Figure 6 and Figure 7 , the first fastener 3 is also provided with a curved end 8; the curved end 8 is symmetrically arranged on both sides of the plane end 7 of the first fastener 3; the curved end 8 of the first fastener 3 fits with the curved wall of the first groove 6. In this way, due to the fit of the curved end 8 with the curved wall of the first groove 6, the fastening force can be more evenly distributed, reducing local stress concentration, which helps to improve the fastening strength of the entire connection structure; moreover, the design of the curved end 8 helps to further lock the position of the first fastener 3 in the first groove 6, so that the first fastener 3 and the first groove 6 are tightly matched, reducing loosening caused by vibration or impact, thereby improving the anti-loosening performance of the connection.

[0057] As a further improvement, refer to Figure 6 and Figure 7 , the plane end 7 of the first fastener 3 is provided with a thickened protrusion 9, so that the thickness of the plane end 7 of the first fastener 3 is greater than the thickness of the curved end 8; the curved end 8 has a predetermined elastic deformation capacity, and can achieve a tight fit with the curved wall of the first groove 6 by applying prestress during assembly. In this way, the thicker design of the plane end 7 can provide a greater fastening force, ensuring that the first fastener 3 is not easily damaged even under high loads; the elastic curved end 8 can adapt to the specific shape of the first groove 6 through elastic deformation, which is convenient for installation and disassembly and improves installation efficiency; the elastic curved end 8 can be slightly adjusted according to the actual situation of the support plate 2 to improve the adaptability of the connection structure; the thickness of the plane end 7 and the curved end 8, as well as the elasticity of the curved end 8, can be adjusted as needed to adapt to different design requirements and application scenarios.

[0058] As a further improvement, refer to Figure 6 and Figure 7, a positioning flange 10 is provided on the first fastener 3; the positioning flange 10 is fitted with the outer end surface of the support plate 2, and is used to position the depth of the first fastener 3 embedded in the first groove 6. In this way, the positioning flange 10 is fitted with the outer end surface of the support plate 2, which can ensure that the embedding depth of the first fastener 3 in the first groove 6 remains consistent, so that the threaded hole on the first fastener 3 is coaxial with the billiard table leg 1 and the connecting through hole 5 on the support plate 2, ensuring smooth assembly; the position of the threaded hole opening on the first fastener 3 inevitably has an error, and the setting of the positioning flange 10 makes the outer end surface of the support plate 2 serve as the positioning reference surface of the threaded hole.

[0059] As a further improvement, the connection structure between the billiard table legs 1 and the support plate 2 provided in this embodiment also includes an anti-loosening member. The combination of the anti-loosening member and the first fastener 3 can effectively prevent the first fastener 3 from loosening due to vibration during the use of the billiard table, thereby improving the reliability of the connection structure. It should be noted that the anti-loosening member can be a spring washer 11, a locking washer, a nylon locking nut, a full metal locking nut, a cotter pin, a stop block or a stop ring, etc. In this embodiment, refer to Fig. 9 , the anti-loosening part is a spring washer 11.

[0060] Moreover, the connection structure between the billiard table legs 1 and the support plate 2 provided by the present invention also includes a second fastener 12, referring to Figure 5 and Figure 8 The second fastener 12 is provided with a bottom wall and a side wall, the side wall is arranged on the bottom wall to form a cap-shaped structure with one end open, and an anti-slip protrusion 13 is arranged on the inner side of the bottom wall, and a through hole is arranged in the middle of the bottom wall; the spring washer 11 is accommodated in the second fastener 12 and is located on the anti-slip protrusion 13; the outer side of the bottom wall of the second fastener 12 is pressed to the billiard table leg 1 by the head of the bolt 4. In this way, the presence of the anti-slip protrusions 13 on the inner side of the bottom wall increases the friction between the spring washer 11 and the second fastener 12, making the spring washer 11 less likely to loosen, thereby improving the fastening effect of the overall connection. In a possible embodiment, the anti-slip protrusions 13 can be radially distributed on the inner side of the bottom wall of the second fastener 12, which can increase the contact area between the anti-slip protrusions 13 and the spring washer 11, increase the friction, and thus enhance the anti-loosening effect; the elastic deformation of the spring washer 11 can generate a pre-tightening force, and the anti-slip protrusions 13 help maintain this pre-tightening state to prevent the pre-tightening force from decreasing due to the displacement of the spring washer 11; the cap-shaped structure of the second fastener 12 provides a stable accommodation space for the spring washer, protects the spring washer 11 from damage, and ensures that the anti-loosening function of the spring washer 11 is fully exerted.

[0061] As a further improvement, refer to Figure 2 and Figure 3The billiard table leg 1 is provided with a second groove 14, and the second fastener 12 is accommodated in the second groove 14, and the opening of the second fastener 12 faces the side away from the first fastener 3. In this way, the second fastener 12 is located in the second groove 14, which increases the stability of the connection structure because the second fastener 12 is additionally supported; the second groove 14 provides a fixed position for the second fastener 12, reduces the displacement of the second fastener 12 due to external force or vibration, and thus reduces the risk of loosening of the spring washer 11 and the entire connection structure.

[0062] It is understandable that the bolt 4 in this embodiment can be replaced by a stud, because the stud has no head and is a type of fastener with threads on both ends. Therefore, when the stud is used to replace the bolt 4 in this embodiment, the stud is inserted into the connecting through hole between the billiard table leg 1 and the support plate 2, and one end of the stud is threadedly connected to the first fastener 3, and the other end is screwed with a nut and pressed on the billiard table leg 1. The stud connection is suitable for occasions where one of the connected parts is thicker. In this example, the billiard table leg 1 is thicker, and the thickness of the connection between the support plate 2 and the billiard table 1 is also thicker (that is, the depth of the connecting through hole on the support plate 2 is relatively deep). At the same time, when the second fastener 12 or the anti-loosening member in the second fastener 12 needs to be replaced, it is not necessary to separate the stud from the first fastener 3, and only the nut on the stud that is pressed on the billiard table leg 1 needs to be screwed off, which is very convenient to disassemble.

[0063] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention. For example, replacing the bolt connection in the present embodiment with a stud connection shall be included in the scope of protection of the present invention.

Claims

1. A connection structure between a billiard table leg and a support plate, characterized in that: It includes billiard table legs, a support plate, a first fastener and bolts; A first groove is provided on the outer end surface of the support plate; The first fastener is provided with a flat end and a threaded hole, and the first fastener is embedded in the first groove; The billiard table legs and the support plate are provided with connecting through holes; The screw rod of the bolt is passed through the connecting through hole and is threadedly connected with the threaded hole on the first fastener, so that the plane end of the first fastener fits with the plane wall of the first groove, and the head of the bolt is crimped to the billiard table leg.

2. The connection structure between the billiard table legs and the support plate according to claim 1, characterized in that: The first fastener is also provided with a curved end; The curved surface ends are symmetrically arranged on both sides of the flat surface end of the fastener; The curved surface end of the first fastener is in contact with the curved surface wall of the first groove.

3. The connection structure between the billiard table legs and the support plate according to claim 2, characterized in that: The thickness of the plane end of the first fastener is greater than the thickness of the curved end; The curved surface end has a predetermined elastic deformation capability and can be fitted with the curved surface wall of the first groove by applying prestress during assembly.

4. The connection structure between the billiard table legs and the support plate according to claim 2, characterized in that: The first fastener is provided with a positioning flange; The positioning flange is in contact with the outer end surface of the support plate and is used to position the depth of the first fastener embedded in the first groove.

5. A connection structure between a billiard table leg and a support plate according to any one of claims 1 to 4, characterized in that: Also includes anti-loosening parts; The anti-loosening member is pressed onto the billiard table leg by the head of the bolt.

6. The connection structure between the legs and the support plate of a billiard table according to claim 5, characterized in that: The anti-loosening component is a spring washer.

7. The connection structure between the billiard table legs and the support plate according to claim 6, characterized in that: Also included is a second fastener; The second fastener is provided with a bottom wall and a side wall, the side wall is provided on the bottom wall to form a cap-shaped structure with one end open, and an anti-slip protrusion is provided on the inner side of the bottom wall, and a through hole is provided in the middle of the bottom wall; The spring washer is accommodated in the second fastener and is located on the anti-slip protrusion; The outer side of the bottom wall of the second fastener is pressed against the billiard table leg by the head of the bolt.

8. The connection structure between the billiard table legs and the support plate according to claim 7, characterized in that: The anti-slip protrusions are distributed radially.

9. A connection structure between a billiard table leg and a support plate according to claim 7 or 8, characterized in that: The billiard table legs are provided with a second groove; The second fastener is accommodated in the second groove, and the opening of the second fastener faces away from the first fastener.

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