High-strength fastening screw with pressure-bearing structure

Abstract

The high-strength fastening screw with the pressure-bearing structure comprises a lower screw seat, an upper screw seat is connected to the top of the lower screw seat in an inserted mode, two installation grooves are formed in the two sides of the outer portion of the upper screw seat, an installation plate is installed in the two installation grooves, one side of the installation plate is fixedly connected with a first telescopic rod, and the other side of the installation plate is fixedly connected with a second telescopic rod. And the end part of the first telescopic rod is connected with a first limiting plate. By pulling the upper screw seat, the upper screw seat is separated from the lower screw seat, and in the upward pulling process, an inserting block and a notch formed in the lower screw seat are squeezed, so that the inserting block drives a first reset spring outside a first telescopic rod to contract in the squeezing process; and the first sliding block slides along the limiting groove in the shrinking process, so that the stability during shrinking movement is improved, the upper screw seat and the lower screw seat after screw slipping are separated, and the problem that the screw cannot be disassembled after screw slipping is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of fastening screws, and in particular relates to a high-strength fastening screw with a pressure-bearing structure. Background Art

[0002] A screw is a tool that uses the physical and mathematical principles of the circular rotation of the inclined surface of an object and the friction force to gradually fasten objects and parts. For example, the application number is: CN216343300U, which is called a high-strength fastening screw with a pressure-bearing structure, and relates to the technical field of bolts. It is to solve the problem that the existing fastening screws have poor pressure-bearing performance during use, resulting in the top of the screw being easily deformed due to pressure. The upper end of the screw rod is provided with a support seat, the upper end of the support seat is provided with a screw end cap, and the upper end of the screw end cap is provided with a pressure-bearing end cap. The screw end cap and the pressure-bearing end cap are respectively provided with a first bearing groove and a second bearing groove inside, a buffer spring is provided between the first bearing groove and the second bearing groove, and a damping rod is provided inside the buffer spring. The top of the pressure-bearing end cap is provided with a cross-arch top seat, and a lining circular groove is provided at the center of the cross-arch top seat. Four movable guide rods are provided outside the buffer spring.

[0003] Although the high-strength fastening screw with a pressure-bearing structure can withstand the pressure on the top without deformation during use, no relevant disassembly components are provided, resulting in the cracking of the groove wall of the cross screw groove when the screwdriver is used to disassemble and rotate, causing thread slippage, increasing the difficulty of disassembling the fastening screw, and the screw cannot be reused, resulting in waste. Therefore, an improvement is now made to a high-strength fastening screw with a pressure-bearing structure. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a high-strength fastening screw with a pressure-bearing structure, and the upper screw seat can be quickly replaced through the mutual cooperation of the upper screw seat and the lower screw seat to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the utility model proposes a high-strength fastening screw with a pressure-bearing structure, comprising a lower wire seat, an upper wire seat being plugged into the top of the lower wire seat, two mounting grooves being provided on both sides of the outside of the upper wire seat, mounting plates being installed inside the two mounting grooves, a first telescopic rod being fixedly connected to one side of the mounting plate, a first limit plate being connected to the end of the first telescopic rod, a first return spring being sleeved on the outside of the first telescopic rod, and a plug-in block being connected to one side of the first limit plate.

[0006] Preferably, two plug-in slots are provided on both sides of the exterior of the upper wire seat, a fixing plate is installed inside the plug-in slot, the exterior of the fixing plate is connected to a second telescopic rod, the exterior of the second telescopic rod is connected to a second limiting plate, the exterior of the second telescopic rod is sleeved with a second return spring, and the exterior of the second limiting plate is fixedly connected to a pressure block.

[0007] Preferably, a first slider and a second slider are respectively installed on both sides of the outside of the first limiting plate and the second limiting plate, and limiting grooves are provided inside the installation groove and the plug-in groove, and the first slider and the second slider are slidably connected to the limiting grooves.

[0008] Preferably, a thread post is fixedly connected to the bottom of the lower thread seat, and a thread is formed on the outside of the thread post.

[0009] Preferably, a cross groove is provided at the bottom of the upper wire seat.

[0010] Preferably, the lower wire seat is provided with a notch.

[0011] The high-strength fastening screw with a pressure-bearing structure proposed by the utility model can bring the following beneficial effects:

[0012] 1. The upper screw seat is pulled to separate the upper screw seat from the lower screw seat. In the process of pulling upward, the plug-in block and the notch opened by the lower screw seat are squeezed, so that the plug-in block drives the first return spring outside the first telescopic rod to contract during the squeezing process, and then the first slider slides along the limit groove during the contraction process, thereby increasing the stability during the contraction movement, and then separating the upper screw seat from the lower screw seat after the screw is slipped, avoiding the problem that the screw cannot be disassembled after the screw is slipped.

[0013] 2. During the plug-in process, the plug-in block is contacted and squeezed with the notch outside the lower wire seat due to the downward force, so that the first return spring drives the first telescopic rod to contract. When the plug-in block is inside the plug-in slot, the reaction force of the first return spring drives the plug-in block to contact with the pressing block, so that the pressing block receives the reaction force from the first return spring to squeeze the plug-in block, so that the second return spring outside the second telescopic rod contracts, so that the plug-in block contacts with the pressing block and is plugged into the plug-in slot at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0015] In the attached picture:

[0016] Figure 1The utility model is a schematic diagram of the overall structure of a high-strength fastening screw with a pressure-bearing structure.

[0017] Figure 2 The utility model is a schematic diagram of the exploded structure of a high-strength fastening screw with a pressure-bearing structure.

[0018] Figure 3 The utility model is a schematic diagram of a cross-sectional structure of a high-strength fastening screw with a pressure-bearing structure.

[0019] Figure 4 The utility model is a high-strength fastening screw with a pressure-bearing structure Figure 3 Schematic diagram of the structure at point A in the middle.

[0020] Figure 5 The utility model is a high-strength fastening screw with a pressure-bearing structure Figure 2 Schematic diagram of the structure of B.

[0021] In the figure: 1, screw column; 2, thread; 3, lower screw seat; 4, upper screw seat; 5, cross slot; 6, mounting slot; 7, mounting plate; 8, first telescopic rod; 9, first return spring; 10, first limit plate; 11, first slider; 12, plug-in block; 13, limit slot; 14, plug-in slot; 15, fixing plate; 16, second telescopic rod; 17, second return spring; 18, second limit plate; 19, second slider; 20, pressure block; 21, notch. DETAILED DESCRIPTION

[0022] like Figure 1 to Figure 4 As shown, an embodiment of the utility model proposes a high-strength fastening screw with a pressure-bearing structure, including a lower wire seat 3, an upper wire seat 4 is plugged into the top of the lower wire seat 3, two mounting grooves 6 are provided on the outer sides of the upper wire seat 4, and mounting plates 7 are installed inside the two mounting grooves 6. A first telescopic rod 8 is fixedly connected to one side of the mounting plate 7, and a first limit plate 10 is connected to the end of the first telescopic rod 8. A first return spring 9 is sleeved on the outside of the first telescopic rod 8, and a plug-in block 12 is connected to one side of the first limit plate 10.

[0023] like Figure 4 As shown, two plug-in grooves 14 are provided on both sides of the outside of the upper wire seat 4, a fixing plate 15 is installed inside the plug-in groove 14, the outside of the fixing plate 15 is connected to a second telescopic rod 16, the outside of the second telescopic rod 16 is connected to a second limiting plate 18, the outside of the second telescopic rod 16 is sleeved with a second return spring 17, and the outside of the second limiting plate 18 is fixedly connected to a pressure block 20.

[0024] like Figure 3 and Figure 4As shown, the first and second sliders 11 and 19 are respectively installed on the outer sides of the first and second limit plates 10 and 18, and the inner parts of the installation groove 6 and the plug-in groove 14 are provided with limit grooves 13, and the first and second sliders 11 and 19 are slidably connected with the limit grooves 13.

[0025] like Figure 3 As shown, the bottom of the lower wire seat 3 is fixedly connected with a wire post 1, and the outside of the wire post 1 is provided with a thread 2. When the wire post 1 is fixed to an object, the thread 2 plays a role of biting the object, thereby increasing the fixity of the wire post 1.

[0026] like Figure 3 As shown, a cross groove 5 is provided at the bottom of the upper thread holder 4. This facilitates the installation of the thread column 1.

[0027] like Figure 3 As shown, the lower wire seat 3 is provided with a notch 21, which is convenient for disassembly and installation of the upper wire seat 4 and the lower wire seat 3.

[0028] Working principle:

[0029] When in use, the cross groove 5 opened on the surface of the upper thread seat 4 is conducive to driving the thread 2 into the position where it needs to be fixed. When the cross groove 5 is broken and the thread is slipped, the upper thread seat 4 is pulled to separate the upper thread seat 4 from the lower thread seat 3. In the process of pulling upward, the plug-in block 12 and the notch 21 opened in the lower thread seat 3 are squeezed, so that the plug-in block 12 drives the first return spring 9 outside the first telescopic rod 8 to contract during the squeezing process, and then the first slider 11 slides along the limiting groove 13 during the contraction process, thereby increasing the stability during the contraction movement, and then separating the upper thread seat 4 and the lower thread seat 3 after the thread slipping, avoiding the problem that the screw cannot be disassembled after the thread slips, and at the same time, the same upper thread seat 4 is plugged in with the lower thread seat 3, and then in the process of plugging, Due to the downward force, the plug-in block 12 is in contact with and squeezed by the notch 21 outside the lower wire seat 3, so that the first return spring 9 drives the first telescopic rod 8 to retract. When the plug-in block 12 is inside the plug-in slot 14, the reaction force of the first return spring 9 drives the plug-in block 12 to contact with the pressing block 20, so that the pressing block 20 is squeezed by the reaction force of the first return spring 9 on the plug-in block 12, so that the second return spring 17 outside the second telescopic rod 16 is retracted, so that the plug-in block 12 is in contact with the pressing block 20, and at the same time is plugged into the plug-in slot 14, so that the pressing block 20 is in pressing contact with the plug-in block 12, and the upper wire seat 4 and the lower wire seat 3 are fixed, so as to facilitate the replacement of the upper wire seat 4 after slippage.

[0030] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0031] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A high-strength fastening screw with a pressure-bearing structure, comprising a lower screw seat (3), characterized in that: The top of the lower wire seat (3) is plugged with an upper wire seat (4), two mounting grooves (6) are provided on both sides of the outer side of the upper wire seat (4), mounting plates (7) are installed inside the two mounting grooves (6), one side of the mounting plate (7) is fixedly connected with a first telescopic rod (8), the end of the first telescopic rod (8) is connected with a first limiting plate (10), the outer side of the first telescopic rod (8) is sleeved with a first return spring (9), and one side of the first limiting plate (10) is connected with a plug-in block (12).

2. A high-strength fastening screw with a pressure-bearing structure according to claim 1, characterized in that: Two plug-in slots (14) are provided on both sides of the exterior of the upper wire seat (4), a fixing plate (15) is installed inside the plug-in slot (14), the exterior of the fixing plate (15) is connected to a second telescopic rod (16), the exterior of the second telescopic rod (16) is connected to a second limiting plate (18), the exterior of the second telescopic rod (16) is sleeved with a second return spring (17), and the exterior of the second limiting plate (18) is fixedly connected to a pressing block (20).

3. The high-strength fastening screw with a pressure-bearing structure according to claim 1, characterized in that: A first slider (11) and a second slider (19) are respectively installed on both sides of the outside of the first limiting plate (10) and the second limiting plate (18); limiting grooves (13) are provided inside the installation groove (6) and the plug-in groove (14); and the first slider (11) and the second slider (19) are slidably connected to the limiting grooves (13).

4. The high-strength fastening screw with a pressure-bearing structure according to claim 1, characterized in that: A thread post (1) is fixedly connected to the bottom of the lower thread seat (3), and a thread (2) is formed on the outside of the thread post (1).

5. The high-strength fastening screw with a pressure-bearing structure according to claim 1, characterized in that: A cross groove (5) is provided at the bottom of the upper wire seat (4).

6. The high-strength fastening screw with a pressure-bearing structure according to claim 1, characterized in that: The lower wire seat (3) is provided with a notch (21).

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