Detachable large-diameter anti-cracking screw structure

Abstract

The utility model relates to a detachable large-caliber anti-cracking screw structure which comprises a large-caliber screw body, an auxiliary assembly is arranged outside the large-caliber screw body in a sleeved mode, and a set of T-shaped screw rods are symmetrically clamped in the large-caliber screw body. The large-caliber screw comprises a large-caliber screw body, the large-caliber screw body comprises a hexagonal screw head, a smooth rod is fixedly connected to the bottom of the hexagonal screw head, and limiting grooves are formed in the middle of the hexagonal screw head and the middle of the smooth rod. The hexagonal screw head, the smooth rod, the threaded rod and the tip form the screw which is integrally convenient to use, when the hexagonal screw head and the limiting rod are detached, parts can be conveniently and selectively replaced, the replacement cost is reduced, and due to the fact that the edges of the limiting rod are subjected to rounding treatment to form smooth arc transition, stress can be more evenly distributed on the rod portion, and the service life of the screw is prolonged. The local stress peak value is reduced, and the anti-fatigue and anti-cracking capabilities of the limiting rod are improved.

Description

Technical Field

[0001] This utility model relates to the field of large-diameter screw technology, and in particular to a detachable large-diameter anti-breakage screw structure. Background Technology

[0002] Large-diameter screws have a larger diameter than ordinary screws. The larger diameter can provide greater load-bearing capacity and connection strength, and can withstand greater tensile and shear forces, making them suitable for situations that require connecting large or heavy components.

[0003] Existing large-diameter screws are used to connect large or heavy components, and therefore need to withstand extremely high axial tensile and shear forces. Under long-term high load pressure, the threads are squeezed against each other, and the contact stress on the thread surface is too large, causing the top and root of the thread to gradually undergo plastic deformation, changing the shape and size of the thread, thus leading to accelerated wear. Existing large-diameter screws are often integrally molded, and after wear, the whole thing needs to be replaced, which increases the replacement cost. In view of this, we propose a detachable large-diameter anti-breakage screw structure. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a detachable large-diameter anti-breakage screw structure. This addresses the problem that existing large-diameter screws are used to connect large or heavy components and therefore need to withstand extremely high axial tensile and shear forces. Under long-term high load pressure, the threads are squeezed against each other, and the contact stress on the thread surface is too high, causing the top and root of the thread to gradually undergo plastic deformation, changing the shape and size of the thread, thus leading to accelerated wear. Existing large-diameter screws are often integrally molded, and after wear, the whole unit needs to be replaced, increasing replacement costs.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a detachable large-diameter anti-breakage screw structure is designed, including a large-diameter screw body, an auxiliary component is sleeved on the outside of the large-diameter screw body, and a set of T-shaped screws are symmetrically engaged inside the large-diameter screw body.

[0006] The large-diameter screw body includes a hexagonal screw head, a smooth rod fixedly connected to the bottom of the hexagonal screw head, and a limiting groove opened in the middle of both the hexagonal screw head and the smooth rod. The limiting groove is matched and engaged with the limiting rod. A set of threaded holes are symmetrically opened on the inner side of the limiting rod. A threaded rod is fixedly connected to the bottom end of the limiting rod, and a tip is fixedly connected to the bottom end of the threaded rod.

[0007] Preferably, the hexagonal screw head and the smooth rod are integrally formed, and the height of the hexagonal screw head and smooth rod assembly is the same as the height of the limiting rod.

[0008] Preferably, the limiting rod is hexagonal prism-shaped, and the edges of the limiting rod are rounded to form a smooth arc transition.

[0009] Preferably, after the T-shaped screw passes through the side of the hexagonal screw head, its end is screwed into the threaded hole, and the outer end face of the large diameter of the T-shaped screw is flush with the side surface of the hexagonal screw head.

[0010] Preferably, the auxiliary component includes an anti-slip toothed pad, which is fitted onto the outside of the smooth rod. A set of positioning plates are symmetrically fixed on the left and right sides of the top of the anti-slip toothed pad, and a through hole is opened in the middle of the positioning plate. A set of auxiliary plates are symmetrically fixed on the front and rear sides of the top of the anti-slip toothed pad, and guide grooves are attached to the outer sides of the positioning plate and the auxiliary plates.

[0011] Preferably, the T-shaped screw passes through the interior of the positioning plate and is threadedly connected to the through hole.

[0012] Preferably, the guide groove and the hexagonal screw head are integrally formed, and the two sets of guide grooves are evenly distributed inside the hexagonal screw head.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model effectively realizes the assembly and disassembly of the hexagonal screw head and the limiting rod through the T-shaped screw. When assembling the hexagonal screw head and the limiting rod, the hexagonal screw head, the smooth rod, the threaded rod and the tip form a complete screw body for easy use. When disassembling the hexagonal screw head and the limiting rod, it is convenient to selectively replace the parts and reduce replacement costs. Since the edges of the limiting rod are rounded to form a smooth arc transition, the stress can be more evenly distributed on the rod, reducing local stress peaks and improving the fatigue resistance and crack resistance of the limiting rod.

[0015] 2. This utility model can quickly guide and initially limit the positioning plate and auxiliary plate through the guide groove, and then complete the final limiting of the positioning plate through the T-screw. At this time, the anti-slip tooth pad is firmly attached to the bottom of the hexagonal screw head. The teeth on the surface of the anti-slip tooth pad are embedded into the surface of the connected parts, increasing the roughness of the contact surface, thereby effectively increasing the friction. This can prevent the large-diameter screw body from loosening due to vibration, impact or other external forces during use, ensuring the reliability of the connection. Subsequently, the auxiliary component can be removed from the large-diameter screw body by disassembling the T-screw, which is convenient for the replacement of the auxiliary component. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3This is a schematic diagram of the disassembled structure from another perspective of the present invention;

[0019] In the diagram: 1. Large-diameter screw body; 2. Auxiliary components; 3. T-screw;

[0020] 101. Hexagonal screw head; 102. Smooth rod; 103. Limiting groove; 104. Limiting rod; 105. Threaded hole; 106. Threaded rod; 107. Tip;

[0021] 201. Anti-slip toothed pad; 202. Positioning plate; 203. Through hole; 204. Auxiliary plate; 205. Guide groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Detachable large-diameter anti-breakage screw structure, see [link / reference] Figures 1 to 3 It includes a large-diameter screw body 1, an auxiliary component 2 is sleeved on the outside of the large-diameter screw body 1, and a set of T-shaped screws 3 are symmetrically engaged inside the large-diameter screw body 1.

[0024] The large-diameter screw body 1 includes a hexagonal screw head 101, with a smooth rod 102 fixedly connected to the bottom of the hexagonal screw head 101. Both the hexagonal screw head 101 and the smooth rod 102 have limiting grooves 103 in their middle portions. A limiting rod 104 is fitted and engaged within the limiting grooves 103. The hexagonal screw head 101 and the smooth rod 102 are integrally formed, and the height of the assembly of the hexagonal screw head 101 and the smooth rod 102 is the same as the height of the limiting rod 104. Furthermore, the limiting rod 104... 4 is hexagonal prism shaped. The edges of the limiting rod 104 are rounded to form a smooth arc transition. A set of threaded holes 105 are symmetrically opened on the inner side of the limiting rod 104. Furthermore, the T-shaped screw 3 passes through the side of the hexagonal screw head 101 and its end is screwed into the threaded hole 105. The outer end face of the large diameter of the T-shaped screw 3 is flush with the side surface of the hexagonal screw head 101. A threaded rod 106 is fixedly connected to the bottom end of the limiting rod 104, and a tip 107 is fixedly connected to the bottom end of the threaded rod 106. This utility model effectively realizes the assembly and disassembly of the hexagonal screw head 101 and the limiting rod 104 through the T-shaped screw 3. When the hexagonal screw head 101 and the limiting rod 104 are assembled, the hexagonal screw head 101, the smooth rod 102, the threaded rod 106 and the tip 107 form a complete screw body for easy use. When the hexagonal screw head 101 and the limiting rod 104 are disassembled, it is convenient to selectively replace the parts and reduce replacement costs. Since the edges of the limiting rod 104 are rounded to form a smooth arc transition, the stress can be more evenly distributed on the rod, reducing local stress peaks and improving the fatigue resistance and crack resistance of the limiting rod 104.

[0025] It is worth noting that the auxiliary component 2 includes an anti-slip toothed pad 201, which is fitted onto the outside of the smooth rod 102. A set of positioning plates 202 are symmetrically fixed on the left and right sides of the top of the anti-slip toothed pad 201. A through hole 203 is opened in the middle of the positioning plate 202. The T-shaped screw 3 passes through the inside of the positioning plate 202 and is threadedly connected to the through hole 203. A set of auxiliary plates 204 are symmetrically fixed on the front and rear sides of the top of the anti-slip toothed pad 201. Guide grooves 205 are attached to the outer sides of both the positioning plate 202 and the auxiliary plate 204. Furthermore, the guide grooves 205 are integrally formed with the hexagonal screw head 101. The two sets of guide grooves 205 are evenly distributed inside the hexagonal screw head 101. This utility model can quickly guide and initially limit the positioning plate 202 and auxiliary plate 204 through the guide groove 205, and then complete the final limit of the positioning plate 202 through the T-screw 3. At this time, the anti-slip tooth pad 201 is firmly attached to the bottom of the hexagonal screw head 101. The teeth on the surface of the anti-slip tooth pad 201 are embedded in the surface of the connected parts, increasing the roughness of the contact surface, thereby effectively increasing the friction. This can prevent the large-diameter screw body 1 from loosening due to vibration, impact or other external forces during use, ensuring the reliability of the connection. Subsequently, the auxiliary component 2 can be removed from the large-diameter screw body 1 by disassembling the T-screw 3, which facilitates the replacement of the auxiliary component 2.

[0026] Working principle: The T-screw 3 facilitates the assembly and disassembly of the hexagonal screw head 101 and the limiting rod 104. When assembling the hexagonal screw head 101 and the limiting rod 104, the hexagonal screw head 101, smooth rod 102, threaded rod 106, and tip 107 form a complete screw unit for easy use. When disassembling the hexagonal screw head 101 and the limiting rod 104, selective replacement of parts is convenient, reducing replacement costs. Because the edges of the limiting rod 104 are rounded to form a smooth arc transition, stress can be distributed more evenly on the rod, reducing local stress peaks and improving the fatigue resistance and fracture resistance of the limiting rod 104, thus guiding the movement. The groove 205 is used to guide and initially limit the positioning plate 202 and the auxiliary plate 204. Then, the T-screw 3 completes the final limiting of the positioning plate 202. At this time, the anti-slip toothed pad 201 is firmly attached to the bottom of the hexagonal screw head 101. The teeth on the surface of the anti-slip toothed pad 201 are embedded in the surface of the connected parts, increasing the roughness of the contact surface, thereby effectively increasing the friction. This can prevent the large-diameter screw body 1 from loosening due to vibration, impact or other external forces during use, ensuring the reliability of the connection. Afterwards, the auxiliary component 2 can be removed from the large-diameter screw body 1 by disassembling the T-screw 3, which facilitates the replacement of the auxiliary component 2.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A detachable large-diameter anti-collapse screw structure, characterized in that, It includes a large-diameter screw body (1), an auxiliary component (2) is sleeved on the outside of the large-diameter screw body (1), and a set of T-shaped screws (3) are symmetrically engaged inside the large-diameter screw body (1). The large-diameter screw body (1) includes a hexagonal screw head (101), a smooth rod (102) is fixedly connected to the bottom of the hexagonal screw head (101), and a limiting groove (103) is opened in the middle of both the hexagonal screw head (101) and the smooth rod (102). A limiting rod (104) is matched and engaged inside the limiting groove (103). A set of threaded holes (105) are symmetrically opened on the inner side of the limiting rod (104). A threaded rod (106) is fixedly connected to the bottom end of the limiting rod (104), and a tip (107) is fixedly connected to the bottom end of the threaded rod (106).

2. The detachable large-diameter anti-breakage screw structure as described in claim 1, characterized in that, The hexagonal screw head (101) and the smooth rod (102) are integrally formed, and the height of the hexagonal screw head (101) and the smooth rod (102) assembly is the same as the height of the limiting rod (104).

3. The detachable large-diameter breakage-proof screw structure according to claim 1, wherein The limiting rod (104) is hexagonal prism in shape, and the edges of the limiting rod (104) are rounded to form a smooth arc transition.

4. The detachable large-diameter breakage-proof screw structure according to claim 1, wherein After the T-shaped screw (3) passes through the side of the hexagonal screw head (101), its end is screwed into the threaded hole (105). The outer end face of the large diameter of the T-shaped screw (3) is flush with the side surface of the hexagonal screw head (101).

5. The detachable large-diameter breakage-proof screw structure according to claim 1, wherein The auxiliary component (2) includes an anti-slip toothed pad (201), which is fitted onto the outside of the smooth rod (102). A set of positioning plates (202) are symmetrically fixed on the left and right sides of the top of the anti-slip toothed pad (201). A through hole (203) is opened in the middle of the positioning plate (202). A set of auxiliary plates (204) are symmetrically fixed on the front and rear sides of the top of the anti-slip toothed pad (201). Guide grooves (205) are attached to the outer sides of both the positioning plate (202) and the auxiliary plate (204).

6. The detachable large-diameter breakage-proof screw structure according to claim 5, wherein The T-shaped screw (3) passes through the interior of the positioning plate (202) and is threadedly connected to the through hole (203).

7. The detachable large-diameter breakage-proof screw structure according to claim 5, wherein The guide groove (205) and the hexagonal screw head (101) are integrally formed, and the two sets of guide grooves (205) are evenly distributed inside the hexagonal screw head (101).

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