Electric anti-theft nut

Abstract

The utility model relates to the technical field of fasteners, and provides an electric anti-theft nut which comprises a nut body, the nut body is provided with a threaded hole, a limiting groove is formed in the inner wall of the threaded hole and is in an arc shape, an anti-theft bead is arranged in the limiting groove, a built-in sleeve is arranged in the threaded hole, and the anti-theft bead abuts against the outer wall of the built-in sleeve. By means of the technical scheme, the technical problem that in the prior art, a built-in sleeve of an electric anti-theft nut is not easy to reset after falling off is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field, specifically, relate to a power theftproof nut. BACKGROUND

[0002] In the field of power facility installation and maintenance, as a common part of connection and fixing components, the anti-theft performance and installation convenience of nuts are crucial. However, the traditional ball-type theftproof nut has exposed many problems in practical application, which is difficult to meet the growing demand of the power industry.

[0003] The traditional ball-type theftproof nut has great difficulty in assembly process. Because the position and state of the ball are difficult to adjust accurately, the operator often needs to spend a lot of time and effort when installing the ball into the limiting groove of the nut. This not only reduces the assembly efficiency, but also may affect the anti-theft effect due to improper installation. In large-scale power facility construction projects, the assembly work of numerous nuts is time-consuming and laborious, which greatly affects the project progress.

[0004] In actual use, the built-in sleeve of the traditional theftproof nut is easy to fall off. Once the built-in sleeve falls off, if you want to continue using the original nut, the process of reinstalling the theftproof ball is very tedious. The traditional way usually needs to smear oil on the theftproof ball, or rely on the operator to try to install repeatedly several times, which not only wastes a lot of manpower and material resources, but also may cause the anti-theft performance of the nut to be unstable after reinstallation. Moreover, in the construction site, once the built-in sleeve falls off, due to the lack of convenient assembly method, it may affect the entire construction progress and increase the construction cost.

[0005] In addition, the traditional theftproof nut also has deficiencies in spare parts procurement and environmental impact. Because of its complex structure, when purchasing spare parts, a large number of complete nuts need to be purchased, which increases the cost of spare parts. At the same time, a large number of non-degradable built-in sleeves cause great decomposition pressure on the environment after use, which does not meet the current environmental protection concept.

[0006] With the rapid development of the power industry, higher requirements are put forward for the safety and installation and maintenance efficiency of power facilities. The traditional ball-type theftproof nut has been unable to meet these demands, and there is an urgent need for a new type of power theftproof nut to solve the problems of traditional nuts in assembly, use, spare parts procurement and environmental protection, and improve the safety and maintenance efficiency of power facilities. SUMMARY

[0007] To overcome the above-mentioned defects, the embodiments of the present disclosure provide a power theftproof nut, which solves the technical problem that the built-in sleeve of the existing power theftproof nut is not easy to reset after falling off.

[0008] According to one aspect, at least one embodiment of the present disclosure provides a power theftproof nut, comprising:

[0009] A nut has a threaded hole, the inner wall of the threaded hole has a limiting slot, the limiting slot is arc-shaped;

[0010] An anti-theft bead is arranged in the limiting slot;

[0011] An inner sleeve is arranged in the threaded hole, the anti-theft bead abuts against the outer wall of the inner sleeve, the inner sleeve has a poking part, the poking part is located on one side of the limiting slot, a channel is formed between the poking part and the inner wall of the threaded hole, the channel is enlarged or reduced after the poking part is poked, the channel leads to the limiting slot, and the channel is used for passing of the anti-theft bead after being enlarged.

[0012] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the inner sleeve arranged in the threaded hole in a rotating manner, the inner sleeve has an abutting surface, the abutting surface is located on both sides of the poking part, and the anti-theft bead abuts against the abutting surface after the inner sleeve is rotated.

[0013] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the poking part having an operation part, and the operation part is used for rotating the inner sleeve by an operator.

[0014] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the poking part having a guide surface, and the guide surface is configured to push the anti-theft bead into the limiting slot after the inner sleeve is rotated, so that the abutting surface abuts against the anti-theft bead.

[0015] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the bottom of the poking part away from one side of the limiting slot having a swing accommodation slot.

[0016] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the inner sleeve having an abutting part, and the abutting part is used for abutting against the end surface of the nut.

[0017] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the abutting part located on one side of the abutting surface.

[0018] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has a spacing between the limiting slot and the lower end of the poking part.

[0019] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the minimum width of the channel being smaller than the radius of the anti-theft bead.

[0020] For example, the electric anti-theft nut provided by at least one embodiment of the present disclosure has the limiting slot being at least three and arranged in a circumferential direction.

[0021] The embodiments of the present disclosure have the following beneficial effects:

[0022] In the present disclosure, the arc-shaped limiting groove is arranged on the inner wall of the threaded hole to place the anti-theft bead. When installed, the built-in sleeve is pushed out by the screw rod, the anti-theft bead is effective, and rolls in the arc-shaped limiting groove. When the screw rod is retracted, the anti-theft bead rolls in the arc-shaped limiting groove and enters the small groove end of the arc-shaped limiting groove to increase the resistance and achieve anti-theft. When assembling the nut, the operator can move the moving part to the position where the channel is enlarged. At this time, the anti-theft bead can pass through the channel and enter the limiting groove, facilitating the assembly of the nut. Compared with the traditional ball type anti-theft nut, the design greatly simplifies the assembly process and improves the assembly efficiency. In the construction site, when the built-in sleeve falls off and the nut needs to be reassembled, on-site assembly can be realized, the built-in sleeve can be reused and recycled. Compared with the existing ball type anti-theft nut, once the built-in sleeve falls off, the original nut needs to be oiled or installed by the operator for multiple attempts, which greatly wastes manpower and resources. The structural design of the built-in sleeve in the present scheme makes it possible to assemble the built-in sleeve that falls off during transportation on site. At the same time, the construction personnel can choose the planned use quantity when purchasing the corresponding nut, and the spare parts only need to purchase part of the nut and part of the anti-theft bead, thereby reducing the spare part cost demand. At the same time, by reducing the use of the built-in sleeve, the decomposition pressure of the environment on the built-in sleeve is also reduced. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0024] Figure 1 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure.

[0025] Figure 2 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure. Figure 1 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure.

[0026] Figure 3 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure. Figure 1 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure.

[0027] Figure 4 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure. Figure 2 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure.

[0028] Figure 5 The structural schematic diagram of one embodiment of the present disclosure is shown in the figure.

[0029] In the figure: nut-1, threaded hole-101, limiting groove-102, anti-theft bead-2, built-in sleeve-3, actuating portion-301, channel-302, abutting surface-303, guide surface-304, swing accommodation groove-305, abutting portion-306, interval-307, operating portion-308. DETAILED DESCRIPTION

[0030] The disclosure will be further described below in conjunction with the drawings and examples. It can be understood that the specific examples described herein are only used to explain the disclosure, and not to limit the disclosure.

[0031] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the components with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0032] In this paper, it should be noted that unless otherwise specified and limited, the terms "mounting", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the disclosure can be understood according to the specific circumstances.

[0033] In the disclosure, unless otherwise specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0034] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of description and simplification of operation, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the disclosure.

[0035] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0036] As shown in Figures 1-5 The power anti-theft nut is shown in an embodiment of the present disclosure, which includes a nut 1, the nut 1 has a threaded hole 101, the inner wall of the threaded hole 101 has a limiting groove 102, the limiting groove 102 is arc-shaped, an anti-theft bead 2 is arranged in the limiting groove 102, an embedded sleeve 3 is arranged in the threaded hole 101, the anti-theft bead 2 abuts against the outer wall of the embedded sleeve 3, the embedded sleeve 3 has a poking part 301, the poking part 301 is located on one side of the limiting groove 102, a channel 302 is formed between the poking part 301 and the inner wall of the threaded hole 101, after the poking part 301 is poked, the channel 302 is enlarged or reduced, the channel 302 leads to the limiting groove 102, and the channel 302 is used for passing of the anti-theft bead 2.

[0037] For example, as shown in Figures 1-5 The arc-shaped limiting groove 102 is arranged on the inner wall of the threaded hole 101 to place the anti-theft bead 2, when installation, the embedded sleeve 3 is pushed out by a screw rod, the anti-theft bead 3 takes effect, and rolls in the arc-shaped limiting groove 102, when the screw rod is retracted, the anti-theft bead 2 rolls in the arc-shaped limiting groove 102, enters a small groove end of the arc-shaped limiting groove 102, increases resistance, and realizes anti-theft. When assembling the nut, an operator can poke the poking part 301 to a position where the channel 302 is enlarged. At this time, the anti-theft bead 2 can pass through the channel 302 to enter the limiting groove 102, facilitating nut assembly. Compared with the traditional ball type anti-theft nut, the design greatly simplifies the assembly process and improves the assembly efficiency. In the construction site, when the embedded sleeve 3 falls off, causing the nut to be reassembled, on-site assembly can be realized, the embedded sleeve 3 can be reused, recycling, compared with the ball type anti-theft nut of the prior art, once the embedded sleeve 3 falls off, the original nut needs to be oiled or installed by the operator for multiple attempts, which greatly wastes manpower and material resources. The structural design of the embedded sleeve 3 in the present scheme makes it possible to assemble the embedded sleeve 3 that falls off during transportation on site, at the same time, the construction personnel on site can choose the planned use quantity when purchasing the corresponding nut, and the spare parts only need to purchase part of the nut 1 and part of the anti-theft bead 2, which reduces the demand for spare parts cost, at the same time, by reducing the use of the embedded sleeve, the decomposition pressure of the environment on the embedded sleeve is also reduced.

[0038] In some examples, the embedded sleeve 3 is rotationally arranged in the threaded hole 101, the embedded sleeve 3 has an abutting surface 303, the abutting surface 303 is located on both sides of the poking part 301, after the embedded sleeve 3 is rotated, the anti-theft bead 2 abuts against the abutting surface 303, the poking part 301 has an operating part 308, and the operating part 308 is used to rotate the embedded sleeve 3 by an operator.

[0039] For example, as shown in Figures 1-5 The built-in sleeve 3 is arranged in the threaded hole 101 in rotation, and the dialing part 301 has an operation part 308, which provides a clear and convenient operation interface for the operator. When assembling the nut, the operator can easily rotate the built-in sleeve 3 through the operation part 308. Compared with the traditional complex operation mode, this design greatly reduces the operation difficulty and improves the work efficiency. On the construction site, the worker can quickly rotate the built-in sleeve 3 through the operation part 308, so that the anti-theft bead 2 enters or leaves the limiting groove 102, and the assembly of the nut is completed.

[0040] In some examples, the dialing part 301 has a guide surface 304, which is configured to push the anti-theft bead 2 into the limiting groove 102 after the built-in sleeve 3 is rotated, and the abutting surface 303 abuts against the anti-theft bead 2.

[0041] For example, as shown in Figures 1-3 The guide surface 304 of the dialing part 301 provides precise guidance for the anti-theft bead 2 to enter the limiting groove 102. When assembling the nut, the operator rotates the built-in sleeve 3, and the anti-theft bead 2 will be smoothly sent into the limiting groove 102 along the guide of the guide surface 304. This precise guidance design avoids problems such as jamming and deviation of the anti-theft bead 2 during the process of entering the limiting groove 102, making the assembly process more smooth and greatly improving the assembly efficiency. Compared with the situation that the position of the anti-theft bead may need to be adjusted repeatedly during the assembly of the traditional nut, this design greatly simplifies the operation process and saves the assembly time.

[0042] When the anti-theft bead 2 is pushed into the limiting groove 102 by the guide surface 304, the abutting surface 303 abuts against the anti-theft bead 2 tightly. This tight abutting relationship makes the position of the anti-theft bead 2 in the limiting groove 102 more stable, so that even if the nut is subjected to strong vibration, impact or external force torsion, the anti-theft bead 2 is also difficult to come out of the limiting groove 102, effectively preventing the nut from failing.

[0043] In some examples, the dialing part 301 has a swing accommodation groove 305 at the bottom far away from the side of the limiting groove 102.

[0044] For example, as shown in Figure 2 The core function of the swing accommodation groove 305 is to facilitate the swing of the dialing part 301. When the operator rotates the built-in sleeve 3 through the operation part 308, the swing accommodation groove 305 provides sufficient swing space for the dialing part 301, reduces the difficulty of swing, and greatly reduces the resistance in the swing process.

[0045] In some examples, the built-in sleeve 3 has an abutting part 306 for abutting against the end face of the nut 1.

[0046] For example, as shown in Figures 1-2As shown, during assembling the nut, the abutment portion 306 allows the operator to quickly determine whether the inner sleeve 3 is installed correctly. Simply insert the inner sleeve 3 into the threaded hole 101 of the nut 1; when the abutment portion 306 contacts the corresponding part of the nut 1, it indicates that the installation position is accurate, eliminating the need for repeated adjustments, greatly saving assembly time and improving assembly efficiency. The precise limiting function ensures that the inner sleeve 3 is in the same correct position every time it is installed, guaranteeing the fitting accuracy between the anti-theft bead 2, the limiting groove 102, and other components.

[0047] In some examples, the abutment portion 306 is located on one side of the abutment surface 303.

[0048] For example, such as Figures 1-2 As shown, the abutment part 306 is located on one side of the abutment surface 303, making reasonable use of the space of the inner sleeve 3 without occupying too much internal or external space, thus making the entire nut structure compact. Within the limited space, this layout design allows for a tighter fit between the inner sleeve 3, the anti-theft ball 2, and the nut 1, without affecting the function of each component.

[0049] The contact surface 303 is mainly responsible for contacting the anti-theft bead 2 to ensure the anti-theft function; the contact part 306 is responsible for limiting the relative position of the inner sleeve 3 and the nut 1. Both are located on the same side, forming a cooperative relationship in structure. When the inner sleeve 3 rotates, the contact state between the contact surface 303 and the anti-theft bead 2 and the limiting state between the contact part 306 and the nut 1 are interconnected, ensuring the quality stability during the nut assembly process.

[0050] In some examples, there is a gap 307 between the limiting groove 102 and the lower end of the actuating part 301.

[0051] For example, such as Figure 2 , Figure 4 As shown, the interval 307 provides more space for the anti-theft bead 2 to enter or leave the limiting groove 102 through the channel 302. When the actuating part 301 rotates to expand or shrink the channel 302, the anti-theft bead 2 can pass through smoothly without obstruction, avoiding jamming caused by narrow space, ensuring the normal movement of the anti-theft bead 2, and ensuring the smooth assembly of the nut.

[0052] In some examples, the minimum width of channel 302 is less than the radius of anti-theft bead 2.

[0053] For example, such as Figure 2As shown, the minimum width of channel 302 is less than the radius of anti-theft bead 2, meaning that under normal circumstances, anti-theft bead 2 cannot leave the limiting groove 102 by itself through channel 302. When the nut is subjected to external forces such as vibration or impact, anti-theft bead 2 will not accidentally fall off through channel 302. During installation, the operator can rotate the inner sleeve 3 and use the guide surface 304 to precisely guide anti-theft bead 2 into the limiting groove 102. Because the minimum width of channel 302 is less than the radius of anti-theft bead 2, anti-theft bead 2 will not arbitrarily fall off after installation, ensuring a smooth assembly process and a stable and reliable assembly result.

[0054] In some examples, there are at least three limiting slots 102, which are arranged in a circular pattern.

[0055] For example, such as Figure 3 As shown, the presence of multiple limiting slots 102 means that more anti-theft beads 2 participate in the anti-theft mechanism. When an unauthorized person attempts to turn the nut, they must simultaneously overcome the obstruction of multiple anti-theft beads 2. Each anti-theft bead 2 within its respective limiting slot 102 generates resistance in different directions against the disassembly tool, greatly increasing the difficulty of disassembly and making unauthorized disassembly almost impossible, thus significantly improving the nut's anti-theft capability. Even if an anti-theft bead 2 in one limiting slot 102 experiences a temporary positional shift or malfunction due to unforeseen circumstances, the anti-theft beads 2 in other limiting slots 102 can still maintain their anti-theft function, ensuring that the nut's anti-theft function is not completely lost due to the problem of individual anti-theft beads 2, thereby improving the reliability and stability of the anti-theft system.

[0056] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. An electric power theft-preventing nut, characterized by comprising: The utility model relates to a nut (1) with a threaded hole (101) having a limiting groove (102) on the inner wall, the limiting groove (102) is arc-shaped; an anti-theft bead (2) is arranged in the limiting groove (102); an inner sleeve (3) is arranged in the threaded hole (101), the anti-theft bead (2) abuts against the outer wall of the inner sleeve (3), the inner sleeve (3) has a knob (301), the knob (301) is located on one side of the limiting groove (102), a channel (302) is formed between the knob (301) and the inner wall of the threaded hole (101), the channel (302) is enlarged or reduced after the knob (301) is actuated, the channel (302) leads to the limiting groove (102), and the channel (302) is used for the anti-theft bead (2) to pass through after being enlarged. The inner sleeve (3) is rotationally arranged in the threaded hole (101), the inner sleeve (3) has an abutting surface (303) located on both sides of the knob (301), and the anti-theft bead (2) abuts against the abutting surface (303) after the inner sleeve (3) is rotated. The knob (301) has an operation part (308) for an operator to rotate the inner sleeve (3). The knob (301) has a guide surface (304) configured to push the anti-theft bead (2) into the limiting groove (102) after the inner sleeve (3) is rotated, and the abutting surface (303) abuts against the anti-theft bead (2).

2. The power theft-proof nut according to claim 1, wherein The bottom of the knob (301) away from one side of the limiting groove (102) has a swing accommodation groove (305).

3. The power theft-proof nut according to claim 1, wherein The inner sleeve (3) has an abutting part (306) for abutting against the end face of the nut (1).

4. The power theft-proof nut according to claim 2, wherein The abutting part (306) is located on one side of the abutting surface (303).

5. The power theft-proof nut according to claim 1, wherein There is a gap (307) between the limiting groove (102) and the lower end of the knob (301).

6. The power theft-proof nut according to claim 2, wherein The minimum width of the channel (302) is smaller than the radius of the anti-theft bead (2).

7. The power theft-proof nut according to claim 6, wherein The limiting groove (102) is at least three and arranged in a circle.

8. The power theft-proof nut according to claim 1, wherein ​ 9. The power theft-proof nut according to claim 1, wherein ​ 10. The power theft-proof nut according to claim 1, wherein ​

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