Screw with conical tooth section

Abstract

The utility model discloses a screw with a conical tooth section, which relates to the field of screws and comprises a screw body, a screw end and a nut end, the screw body comprises the screw end and the nut end, the top of the screw end is fixedly connected with the nut end through a thread mechanism, and the screw end comprises a main screw rod, a conical rod and an auxiliary screw rod. The bottom of the main screw rod is fixedly connected with a conical rod, the bottom of the conical rod is fixedly connected with an auxiliary screw rod, the rod wall of the screw end is provided with a conical tooth thread, one end of the rod wall of the main screw rod is fixedly connected with a limiting ring, and the other end of the rod wall of the main screw rod is slidably connected with a damping gasket. The nut end comprises a connecting arc-shaped plate, a connecting block and a nut. According to the screw body, the screw end and the nut end, the anti-theft function is achieved on the basis that loosening is avoided after an object is driven in, and therefore the problems that an existing screw is prone to shaking in the using process, the screw rotates reversely to be loosened, and good anti-theft performance does not exist are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of screw, concretely relates to a screw with taper tooth section. BACKGROUND

[0002] Screw is the physical and mathematical principle of using the inclined plane circular rotation and friction of object, gradually tightens the tool of machine part, mainly is together with two workpieces, the effect of fastening, is the indispensable industrial necessities in daily life.

[0003] The existing screw is hit into the inside of the article by machine or manually during use, but is loose due to the reverse rotation of the screw caused by the vibration under the long-term use, the screw fastening effect is reduced, the screw is unstable, and the screw cap is exposed after installation, is easy to be screwed out with general tools, does not have good anti-theft performance, therefore, the problem that the existing screw is loose during use and does not have good anti-theft performance needs to be solved. UTILITY MODEL CONTENT

[0004] In view of the above-mentioned problems existing in the prior art, the utility model is provided.

[0005] Therefore, the utility model aims at providing a screw with taper tooth section, solving the problem that the existing screw is loose during use and does not have good anti-theft performance.

[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A screw with taper tooth section, including screw body, screw end and screw cap end, the screw body includes screw end and screw cap end, the top of the screw end is fixedly connected with the screw cap end through a thread mechanism, the screw end includes a main screw rod, a taper rod and a secondary screw rod, the bottom of the main screw rod is fixedly connected with the taper rod, the bottom of the taper rod is fixedly connected with the secondary screw rod, the rod wall of the screw end is provided with taper tooth thread, one end of the rod wall of the main screw rod is fixedly connected with a limiting ring, the other end of the rod wall of the main screw rod is slidably connected with a damping washer, the screw cap end includes a corresponding plug, a connecting block and a screw cap, the top of the corresponding plug is fixedly connected with the connecting block, and the top of the connecting block is fixedly connected with the screw cap.

[0008] Preferably, the thread mechanism includes a socket, corresponding threads and a mounting screw sleeve, the top of the screw end is provided with the socket, the two end side walls of the corresponding plug are provided with the corresponding threads, one end of the connecting arc-shaped plate is inserted into the socket and is connected with the mounting screw sleeve in a threaded mode.

[0009] Preferably, the damping washer comprises an upper washer and a lower washer, the bottom of the upper washer is fixedly connected with a plurality of positive clamping teeth, the top of the lower washer is fixedly connected with a plurality of reverse clamping teeth, the other end of each positive clamping tooth is clamped with a reverse clamping tooth, and the top of the upper washer and the bottom of the lower washer are fixedly connected with damping teeth.

[0010] Preferably, the cavity of the screw body is provided with an oil injection through hole, and the sidewall of the two ends of the screw end is provided with an oil removal slot, and the oil removal slot and the oil injection through hole are communicated.

[0011] Further, the top of the nut is provided with a cross clamping groove.

[0012] Preferably, the sidewall of the connecting block is provided with a through insertion hole.

[0013] In the above technical scheme, the technical effects and advantages of the utility model are provided:

[0014] 1. The utility model discloses a taper rod arranged between the main screw rod and the auxiliary screw rod, which can adapt to holes with different diameters, especially when the diameter of the hole is slightly larger than the diameter of the screw, the taper design can provide better fastening effect.

[0015] 2. The utility model discloses a socket arranged on the top of the screw end, which facilitates the insertion and positioning between the corresponding plug and the main screw rod, and a corresponding thread arranged on the sidewall of the corresponding plug, which facilitates the fastening of the corresponding plug and the main screw rod through the mounting sleeve, and facilitates quick separation and disassembly, avoiding the theft of objects by the nut end.

[0016] 3. The utility model discloses a plurality of positive clamping teeth arranged on the bottom of the upper washer and a plurality of reverse clamping teeth arranged on the top of the lower washer, when the screw body is driven into the object, the lower washer is extruded to move upward and clamped with the positive clamping teeth through the reverse clamping teeth, the damping teeth at the bottom are embedded into the surface of the object after locking, and the damping teeth at the top are embedded into the surface of the limiting ring at the bottom, further tightening the screw body to avoid loosening caused by reverse rotation. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is the front structure schematic view of the utility model;

[0019] Figure 2The front structure sectional view of the utility model;

[0020] Figure 3 The nut end three-dimensional connection schematic view of the utility model;

[0021] Figure 4 The damping washer structure schematic view of the utility model.

[0022] Mark explanation:

[0023] 1, screw body;2, screw end;3, nut end;4, main screw;5, conical rod;6, vice screw;7, conical thread;8, limit ring;9, damping washer;10, corresponding plug;11, connecting block;12, nut;13, spigot;14, corresponding thread;15, mounting sleeve;16, upper washer;17, lower washer;18, positive clamping tooth;19, reverse clamping tooth;20, damping tooth;21, oil injection through hole;22, oil removal slot;23, cross clamping groove;24, through insertion hole. Specific implementation

[0024] In order to make the skilled in the art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0025] The utility model discloses a screw with conical tooth section.

[0026] The utility model provides a kind of screw with conical tooth section, it is including screw body, screw end, nut end, main screw, conical rod, vice screw, conical thread, limit ring, damping washer, corresponding plug, connecting block, nut, spigot, corresponding thread, mounting sleeve, upper washer, lower washer, positive clamping tooth, reverse clamping tooth, damping tooth, oil injection through hole, oil removal slot, cross clamping groove and through insertion hole. Figures 1-4The screw shown in the application comprises a screw body 1, a screw end 2 and a nut end 3, the screw body 1 comprises the screw end 2 and the nut end 3, the top of the screw end 2 is fixedly connected with the nut end 3 through a threaded mechanism, the screw end 2 comprises a main screw rod 4, a tapered rod 5 and a secondary screw rod 6, the bottom of the main screw rod 4 is fixedly connected with the tapered rod 5, the bottom of the tapered rod 5 is fixedly connected with the secondary screw rod 6, the rod wall of the screw end 2 is provided with a tapered thread 7, one end of the rod wall of the main screw rod 4 is fixedly connected with a limiting ring 8, the other end of the rod wall of the main screw rod 4 is slidably connected with a damping washer 9, the nut end 3 comprises a corresponding plug 10, a connecting block 11 and a nut 12, the top of the corresponding plug 10 is fixedly connected with the connecting block 11, the top of the connecting block 11 is fixedly connected with the nut 12, the tapered rod 5 is arranged between the main screw rod 4 and the secondary screw rod 6, so that the tapered rod 5 can adapt to holes of different diameters, especially when the diameter of the hole is slightly larger than the diameter of the screw, the tapered design can provide better fastening effect, the nut end 3 composed of the corresponding plug 10, the connecting block 11 and the nut 12 is arranged, the corresponding plug 10 can be quickly installed, connected and disassembled with the screw end 2 through the cooperation of the threaded mechanism, disassembly is avoided to prevent malicious disassembly, the damping washer 9 is arranged, so that the damping washer 9 rotates between the object and the screw body 1 after being driven into the object, preventing loosening caused by reverse rotation due to vibration, thereby solving the problem that existing screws are prone to loosening caused by reverse rotation due to shaking during use, and lacking good anti-theft performance.

[0027] In order to quickly install and disassemble the screw body 1 and the screw end 2, facilitate anti-theft protection, as shown, Figures 1-3 The threaded mechanism comprises a socket 13, a corresponding thread 14 and an installation screw sleeve 15, the top of the screw end 2 is provided with the socket 13, the sidewalls of the corresponding plug 10 are provided with the corresponding thread 14, one end of the connecting arc-shaped plate 10 is inserted into the socket 13 and is threadedly connected with the installation screw sleeve 15, the socket 13 arranged at the top of the screw end 2 is used to facilitate the insertion and positioning of the corresponding plug 10 and the main screw rod 4, the corresponding thread 14 arranged on the sidewall of the corresponding plug 10 is used to facilitate the fastening of the corresponding plug 10 and the main screw rod 4 together through the installation screw sleeve 15, and facilitate quick separation and disassembly, preventing people from disassembling and stealing objects through the nut end 3.

[0028] In order to make the damping washer 9 achieve damping to prevent the screw body from loosening, as Figure 1 , 2As shown in Figure 4, the damping washer 9 includes an upper washer 16 and a lower washer 17. The bottom of the upper washer 16 is fixedly connected with a plurality of positive engaging teeth 18, and the top of the lower washer 17 is fixedly connected with a plurality of negative engaging teeth 19. The other end of each positive engaging tooth 18 is engaged with the negative engaging tooth 19. The top of the upper washer 16 and the bottom of the lower washer 17 are fixedly connected with the damping teeth 20. By utilizing the plurality of positive engaging teeth 18 at the bottom of the upper washer 16 and the negative engaging teeth 19 at the top of the lower washer 17, when the screw body 1 is driven into the object, the lower washer 17 is squeezed and moves upward to engage with the positive engaging teeth 18 through the negative engaging teeth 19. After locking, the damping teeth 20 at the bottom will be embedded in the surface of the object, and the damping teeth 20 at the top will be embedded in the bottom surface of the limit ring, further tightening the screw body 1 to prevent loosening due to reverse rotation.

[0029] In order to facilitate maintenance by operators and prevent the screw body 1 from rusting inside the object, Figure 1 and 2 As shown, an oil filling hole 21 is opened in the cavity of the screw body 1, and oil removal grooves 22 are opened on the side walls at both ends of the screw end 2. The oil removal grooves 22 at both ends are connected to the oil filling hole 21. Through the provided oil filling hole 21, after the lubricating oil is injected, it flows through the oil removal grooves 22 at both ends into the hole of the object, thereby preventing the screw body 1 from rusting inside the object.

[0030] In order to facilitate the installation or removal of the screw body 1, Figure 2 and 3 As shown, a cross slot 23 is provided on the top of the nut 12. By using the cross slot 23, the operator can easily install or remove the screw body 1 through the cross slot 23 provided on the top of the nut 12.

[0031] Finally, in order to facilitate the removal of the screw body 1 by a rod tool, as shown in FIG. Figure 2 As shown, a through hole 24 is provided on the side wall of the connecting block 11. The through hole 24 is provided so that an operator can directly rotate the screw body 1 by passing a rod tool through the through hole 24.

[0032] Directions:

[0033] During use, the screw body 1 is driven into the surface of an object by a machine such as a screw gun or manually. When the screw body 1 is driven into the object, the lower washer 17 is squeezed and moves upward to engage with the positive engaging teeth 18 through the reverse engaging teeth 19. After locking, the damping teeth 20 at the bottom will be embedded in the surface of the object, and the damping teeth 20 at the top will be embedded in the bottom surface of the limit ring, further tightening the screw body 1 to prevent loosening caused by reverse rotation. After driving in, the mounting screw sleeve 15 is rotated upward or downward to make the corresponding insert block 10 and the main screw 4 lose their limit, making it easy to disassemble and separate the nut end 3 and the screw end 2, to prevent malicious disassembly and theft of the object.

[0034] Certain exemplary embodiments of this application are described herein by way of illustration. It should be understood that to those skilled in the art, upon consideration of this disclosure, various modifications could be practiced without departing from the spirit and scope of the application. Thus, the foregoing description is by way of example only, and is not intended to be limiting.

Claims

1. A screw having a tapered thread section, comprising a screw body (1), a screw end (2) and a nut end (3), characterized in that, The screw body (1) includes a screw end (2) and a nut end (3), the top of the screw end (2) is fixedly connected with the nut end (3) through a threaded mechanism, the screw end (2) includes a main screw rod (4), a tapered rod (5) and a secondary screw rod (6), the bottom of the main screw rod (4) is fixedly connected with the tapered rod (5), the bottom of the tapered rod (5) is fixedly connected with the secondary screw rod (6), the rod wall of the screw end (2) is provided with a tapered thread (7), one end of the rod wall of the main screw rod (4) is fixedly connected with a limiting ring (8), the other end of the rod wall of the main screw rod (4) is slidably connected with a damping washer (9), the nut end (3) includes a corresponding plug block (10), a connecting block (11) and a nut (12), the top of the corresponding plug block (10) is fixedly connected with the connecting block (11), and the top of the connecting block (11) is fixedly connected with the nut (12).

2. The screw with tapered thread section according to claim 1, wherein The threaded mechanism includes a socket (13), a corresponding thread (14) and a mounting screw sleeve (15), the top of the screw end (2) is provided with the socket (13), the sidewall of the both ends of the corresponding plug block (10) is provided with the corresponding thread (14), one end of the plug block (10) is inserted into the socket (13) and is threadedly connected with the mounting screw sleeve (15).

3. The screw with tapered thread section according to claim 1, wherein The damping washer (9) includes an upper washer (16) and a lower washer (17), the bottom of the upper washer (16) is fixedly connected with a plurality of positive clamping teeth (18), the top of the lower washer (17) is fixedly connected with a plurality of reverse clamping teeth (19), the other end of each positive clamping tooth (18) is clamped with the reverse clamping tooth (19), and the top of the upper washer (16) and the bottom of the lower washer (17) are fixedly connected with damping teeth (20).

4. The screw with tapered thread section according to claim 1, wherein An oil injection through hole (21) is arranged in the cavity of the screw body (1), and oil removal grooves (22) are arranged in the sidewalls of the both ends of the screw end (2), and the oil removal grooves (22) and the oil injection through hole (21) are communicated.

5. The screw with tapered thread section according to claim 1, wherein A cross clamping groove (23) is arranged in the top of the nut (12).

6. The screw having a tapered thread section according to claim 1, wherein A through insertion hole (24) is arranged in the sidewall of the connecting block (11).

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