Split type billiard cue connecting structure and billiard cue

Abstract

The utility model relates to the field of sports goods, and disclose a kind of split billiard cue connecting structure and billiard cue, it includes detachably connected front section assembly and rear section assembly, front section assembly includes the fixed seat of fixed connection front branch, fixed seat front end is sequentially coaxially connected with first screw rod, extension rod and second screw rod;Rear section assembly includes the connecting sleeve of fixed connection rear branch, and connecting sleeve front end is respectively provided with internal thread and locking nut corresponding first screw rod and second screw rod.The utility model adopts two-stage thread connection, by first screw rod and second screw rod respectively screw connecting sleeve and the segmented locking mode of locking nut, significantly enhance the connection stability and firmness of front branch and rear branch, effectively reduce the risk of billiard cue connecting part loosening, improve the problem that front branch is prone to droop;Connecting structure uses bakelite material close to natural wood, improves the conduction efficiency of hitting ball force, ensures the connection stability while improving the permeability of hitting ball force, improves the feeling of hitting ball.

Description

Technical Field

[0001] This utility model relates to the field of sporting goods, and in particular to a split billiard cue connection structure and a billiard cue. Background Technology

[0002] Split-type billiard cues, with their detachable front and rear sections, offer significant advantages over traditional one-piece cues, including easier portability, storage, and lower maintenance costs, making them widely used by both amateur and professional players. The detachable connection methods for split-type billiard cues mainly include threaded connections, plug-in connections, and magnetic connections, but all have significant limitations: ordinary threaded connections, while simple in structure and low in cost, are prone to loosening and indirect power transmission, leading to front section sagging after prolonged use; plug-in connections are easy to assemble, but their strength depends on the precision of the fit and is prone to loosening after wear; magnetic connections are easy to disassemble, but suffer from insufficient connection strength. In short, existing split-type billiard cues generally suffer from problems such as loosening and sagging of the front section during actual use, affecting shot accuracy and stability; at the same time, the poor connection transparency of existing split-type cues also affects the shot feel.

[0003] In view of this, developing a new connection structure and billiard cue that can prevent sagging while optimizing the transmission of power, improving connection stability and durability, and thus enhancing the overall performance and user experience of the cue, is a technical problem that urgently needs to be solved. Utility Model Content

[0004] The purpose of this utility model is to address the above-mentioned problems by providing a split-type billiard cue connection structure and billiard cue, so as to solve the problem that the front support of the existing split-type billiard cue is prone to sagging, which affects the accuracy and stability of the shot, and at the same time solve the problem of poor shot penetration of the existing split-type billiard cue.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A split-type billiard cue connection structure includes a front section assembly and a rear section assembly, which are detachably connected. The front section assembly includes a fixing seat that is fixedly connected to the front support. A first screw is coaxially disposed at the front end of the fixing seat. An extension rod is coaxially connected to the front end of the first screw. A second screw is connected to the front end of the extension rod. The rear section assembly includes a connecting sleeve that is fixedly connected to the rear support. The front end of the connecting sleeve is provided with an internal thread corresponding to the first screw, and the tail end of the connecting sleeve is provided with a locking nut corresponding to the second screw.

[0006] Preferably, the end of the connecting sleeve has a positioning shaft hole corresponding to the extension rod, the extension rod is inserted into the positioning shaft hole, and the locking nut is fixedly connected to the end of the positioning shaft hole.

[0007] Preferably, both the fixing base and the connecting sleeve are made of non-metallic materials to avoid the rigid material absorbing part of the impact vibration when hitting the ball, thus affecting the ball's permeability.

[0008] Preferably, both the fixing base and the connecting sleeve are made of bakelite.

[0009] Preferably, the first screw, the second screw, and the locking nut are all made of metal.

[0010] Preferably, the first screw and the second screw are nested and connected to the fixed base and the extension rod, respectively.

[0011] Preferably, the front end face of the threaded sleeve is recessed into the connecting sleeve, so that the front end face of the non-metallic connecting sleeve is higher than the front end face of the threaded sleeve.

[0012] Preferably, the front end of the first screw is provided with a smooth rod section, and the connecting sleeve is provided with a light hole section corresponding to the smooth rod section, and the smooth rod section and the light hole section are inserted and matched.

[0013] Meanwhile, this utility model also provides a billiard cue using the above-mentioned connection structure, which includes a front support and a rear support. The front support is fixedly connected to the front section assembly, and the rear support is fixedly connected to the rear section assembly. The front support and the rear support are detachably connected through the front section assembly and the rear section assembly.

[0014] The beneficial effects of this utility model are as follows: The split-type billiard cue connection structure provided by this utility model adopts a two-stage threaded connection. The first screw and the second screw are respectively screwed into the connecting sleeve and the locking nut in a segmented locking method, which significantly enhances the connection stability and reliability of the front and rear supports, effectively reduces the risk of loosening of the billiard cue connection parts, and improves the problem of the front support of the traditional split-type billiard cue sagging. The connection structure uses bakelite material that is close to natural wood, which improves the transmission efficiency of the hitting force, thereby improving the penetration of the hitting force while ensuring the connection stability and improving the hitting feel. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the billiard cue connection structure of this utility model.

[0017] Figure 2 for Figure 1 Exploded view.

[0018] Figure 3 for Figure 1 Axial cross-sectional view.

[0019] Figure 4 This is a schematic diagram of the structure of the billiard cue of this utility model.

[0020] In the diagram: 1--Front support; 10--Front section assembly; 11--Fixed base; 12--First screw; 13--Extension rod; 14--Second screw; 15--Smooth rod section; 2--Rear support; 20--Rear section assembly; 21--Connecting sleeve; 22--Internal thread; 23--Positioning shaft hole; 24--Locking nut; 25--Threaded sleeve; 26--Smooth hole section. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] like Figure 1-4 As shown, a split-type billiard cue connection structure includes a front section assembly 10 for connecting the front support 1 of the billiard cue and a rear section assembly 20 for connecting the rear support 2 of the billiard cue. The front section assembly 10 and the rear section assembly 20 are detachably connected to achieve a quick-release connection between the front support 1 and the rear support 2. Specifically, the front section assembly 10 includes a fixing seat 11 for fixing the front support 1. A first screw 12 is coaxially disposed at the front end of the fixing seat 11. An extension rod 13 is coaxially connected to the front end of the first screw 12. A second screw 14 is connected to the front end of the extension rod 13. The rear section assembly 20 includes a connecting sleeve 21 for fixing the rear support 2. The front end of the connecting sleeve 21 is provided with an internal thread 22 corresponding to the first screw 12, and the tail end of the connecting sleeve 21 is provided with a locking nut 24 corresponding to the second screw 14.

[0023] In use, the front section assembly 10 is pre-fixed to the front support 1 via the fixing seat 11, and the rear section assembly 20 is pre-fixed to the rear support 2 via the connecting sleeve 21, forming a two-section split structure for the billiard cue. During connection, the front section assembly 10 and the rear section assembly 20 are joined together to achieve a quick connection between the front support 1 and the rear support 2. Specifically, the extension rod 13 of the front section assembly 10 passes through the connecting sleeve 21 of the rear section assembly 20, and the first screw 12 and the second screw 14 in the front section assembly 10 are respectively screwed onto the connecting sleeve 21 and the locking nut 24 on the rear section assembly 20, securely fixing the front support 1 and the rear support 2. This embodiment adopts a two-stage threaded connection structure, using a segmented locking method where the first screw 12 and the second screw 14 are respectively screwed onto the connecting sleeve 21 and the locking nut 24, ensuring the stability and reliability of the connection between the front support 1 and the rear support 2, effectively reducing the risk of loosening of the connection structure, and improving the problem of the front support 1 of the traditional split billiard cue easily drooping.

[0024] In a preferred embodiment, the end of the connecting sleeve 21 has a positioning shaft hole 23 corresponding to the extension rod 13. The extension rod 13 is inserted into the positioning shaft hole 23, and the locking nut 24 is fixedly connected to the end of the positioning shaft hole 23. During connection, the extension rod 13 passes through the connecting sleeve 21 and the positioning shaft hole 23 of the rear section assembly 20 in sequence, and is screwed onto the locking nut 24. In this embodiment, the positioning shaft hole 23 plays a radial positioning and correction role for the extension rod 13 extending to the end of the rear section assembly 20, improving the fitting accuracy and concentricity of the front support 1 and the rear support 2, enhancing the front section's anti-drop capability, and ensuring the accuracy and stability of the billiard cue's shot. Preferably, the radial fitting clearance between the positioning shaft hole 23 and the extension rod 13 is 0.1-0.2mm, which improves the fitting accuracy of the front support 1 and the rear support 2 while ensuring smooth assembly and disassembly of the front section assembly 10 and the rear section assembly 20.

[0025] Preferably, both the fixing base 11 and the connecting sleeve 21 are made of non-metallic materials, so that the contact surfaces of the front support 1 and the rear support 2 are made of non-metallic materials. This avoids the problem of rigid materials absorbing part of the impact vibration during the shot, reducing the transmission efficiency of the hitting force, and affecting the shot's clarity. More preferably, both the fixing base 11 and the connecting sleeve 21 are made of bakelite material. By utilizing the elasticity and mechanical properties close to natural wood, the transmission of force during the shot is smoother, greatly improving the shot's clarity and providing users with a better shooting experience.

[0026] The first screw 12, the second screw 14, and the locking nut 24 are all made of metal to ensure the strength of the threaded connection. The first screw 12 and the second screw 14 are nested and connected to the fixing base 11 and the extension rod 13, respectively. A metal threaded sleeve 25 is nested inside the connecting sleeve 21, and the first screw 12 is screwed onto the threaded sleeve 25. Preferably, the first screw 12, the second screw 14, the threaded sleeve 25, and the locking nut 24 are made of brass, which ensures the connection strength while also being aesthetically pleasing and corrosion-resistant.

[0027] Preferably, the front end face of the threaded sleeve 25 is recessed into the connecting sleeve 21, so that the front end face of the non-metallic connecting sleeve 21 is higher than the front end face of the threaded sleeve 25. During connection, the front end face of the connecting sleeve 21 will contact and pre-tighten with the front end face of the fixed seat 11, so that the entire contact end face of the billiard cue is made of natural wood or non-metallic material similar to natural wood, which reduces the adverse interference of rigid material connection on the transmission of hitting force and improves the penetration and feel of the shot.

[0028] To achieve better pre-tightening effect and connection accuracy, in this invention, the locking nut 24 is a post-installed component. First, the first screw 12 is screwed and pre-tightened to the connecting sleeve 21. Then, the locking nut 24 is screwed from the tail end of the rear assembly 20 to the second screw 14 at the front end of the extension rod 13 and pre-tightened. Finally, the locking nut 24 is bonded and fixed to the front end of the extension rod 13, ensuring that both the first screw 12 and the second screw 14 maintain a certain pre-tightening force, forming a segmented locking structure and improving the connection reliability between the front support 1 and the rear support 2. Simultaneously, the second screw 14 screwed to the locking nut 24 helps to eliminate gaps between the extension rod 13 and the positioning shaft hole 23, further restricting the radial freedom of the distal end of the extension rod 13 and ensuring connection accuracy.

[0029] Preferably, the front end of the first screw 12 is provided with a smooth rod section 15, and the connecting sleeve 21 is provided with a light hole section 26 corresponding to the smooth rod section 15. The smooth rod section 15 and the light hole section 26 are inserted and matched to form a radial positioning function for assembling the fixed seat 11 and the connecting sleeve 21.

[0030] Preferably, the fixing base 11, the first screw 12, the extension rod 13 and the second screw 14 are all fixed by adhesive bonding, and the connecting sleeve 21 and the threaded sleeve 25 are fixed by adhesive bonding.

[0031] Furthermore, this utility model also provides a billiard cue that utilizes the aforementioned connection structure, such as... Figure 4 As shown, it includes a front support 1 and a rear support 2. The front support 1 is fixedly connected to the front section assembly 10, and the rear support 2 is fixedly connected to the rear section assembly 20. The front support 1 and the rear support 2 are detachably connected via the front section assembly 10 and the rear section assembly 20. The billiard cue with this connection structure has significant advantages such as reliable front and rear support connections and high stability. It is less prone to sagging issues after long-term use and has a long service life. Furthermore, the use of bakelite material, which closely resembles solid wood, ensures excellent power transmission and a superior competitive experience.

[0032] The above-disclosed embodiments are merely specific examples of this utility model, but this utility model is not limited thereto. For those skilled in the art, any modifications made without departing from the principle of this utility model should be considered as protected by this utility model.

Claims

1. A split-type billiard cue connection structure, characterized in that: The assembly includes a front section (10) and a rear section (20). The front section (10) and the rear section (20) are detachably connected. The front section (10) includes a fixing seat (11) that is fixedly connected to the front support (1). A first screw (12) is coaxially provided at the front end of the fixing seat (11). An extension rod (13) is coaxially connected at the front end of the first screw (12). A second screw (14) is connected at the front end of the extension rod (13). The rear section (20) includes a connecting sleeve (21) that is fixedly connected to the rear support (2). An internal thread (22) is provided at the front end of the connecting sleeve (21) corresponding to the first screw (12). A locking nut (24) is provided at the tail end of the connecting sleeve (21) corresponding to the second screw (14).

2. The split-type billiard cue connection structure according to claim 1, characterized in that: The end of the connecting sleeve (21) is provided with a positioning shaft hole (23) corresponding to the extension rod (13). The extension rod (13) is inserted into the positioning shaft hole (23) and the locking nut (24) is fixedly connected to the end of the positioning shaft hole (23).

3. The split-type billiard cue connection structure according to claim 1, characterized in that: Both the fixed base (11) and the connecting sleeve (21) are made of non-metallic materials.

4. The split-type billiard cue connection structure according to claim 1, characterized in that: Both the fixed base (11) and the connecting sleeve (21) are made of bakelite.

5. The split-type billiard cue connection structure according to claim 1, characterized in that: The first screw (12) and the second screw (14) are nested and connected to the fixed seat (11) and the extension rod (13), respectively.

6. The split-type billiard cue connection structure according to claim 1, characterized in that: The connecting sleeve (21) is nested with a metal threaded sleeve (25), and the first screw (12) is screwed onto the threaded sleeve (25).

7. The split-type billiard cue connection structure according to claim 6, characterized in that: The first screw (12), the second screw (14), the threaded sleeve (25) and the locking nut (24) are made of brass.

8. The split-type billiard cue connection structure according to claim 6, characterized in that: The front end face of the threaded sleeve (25) is recessed into the connecting sleeve (21), so that the front end face of the non-metallic connecting sleeve (21) is higher than the front end face of the threaded sleeve (25).

9. The split-type billiard cue connection structure according to claim 1, characterized in that: The first screw (12) has a smooth rod section (15) at its front end, and a light hole section (26) is opened on the connecting sleeve (21) corresponding to the smooth rod section (15). The smooth rod section (15) and the light hole section (26) are inserted and matched.

10. A billiard cue using the connection structure described in any one of claims 1-9, characterized in that: It includes a front support (1) and a rear support (2), the front support (1) is fixedly connected to the front section assembly (10), and the rear support (2) is fixedly connected to the rear section assembly (20). The front support (1) and the rear support (2) are detachably connected through the front section assembly (10) and the rear section assembly (20).

Images