Outdoor anti-loosening and anti-theft nut for power transmission tower

Abstract

The utility model relates to the technical field of nuts, and discloses an outdoor anti-loosening and anti-theft nut for a power transmission tower, which comprises a bolt, a first nut and a second nut are sleeved on the outer side of the bolt, and an anti-loosening and anti-theft component is arranged at the upper end of the first nut. According to the anti-loosening nut, the protruding part, the first thread, the second thread, the concave part, the third thread and the fourth thread are arranged, so that when the first nut and the second nut are loosened respectively, the other nut can limit the first nut and the second nut, and therefore the anti-loosening effect is achieved; through the arrangement of the trapezoidal grooves, the trapezoidal holes and the trapezoidal insertion strips, when the first nut and the second nut are screwed or unscrewed, the trapezoidal strips need to be inserted into the limiting holes and the limiting grooves in the two sides, at the moment, the first nut is rotated, the second nut can be driven to rotate synchronously through the trapezoidal strips, and then the second nut can be screwed or unscrewed; when one of the nuts is rotated singly, the nut can be clamped under the limiting effect of the other nut, and therefore the anti-theft performance is improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of nuts, in particular to an external anti-loosening and anti-theft nut for transmission towers for users. Background Technique

[0002] A transmission tower is a support point for overhead lines. A single-circuit transmission tower has one circuit erected on it, and a double-circuit transmission tower has two circuits erected on it. A single circuit means a circuit with one power supply for one load, and a double circuit means a circuit with two power supplies for one load. Generally, enterprises with high requirements for power supply reliability or important substations in a region adopt double-circuit power supply, so that in case one power supply fails, the other power supply can continue to supply power. However, for general small and medium-sized users with low requirements for power supply reliability, single-power supply is often adopted. Many bolts are used when installing and building transmission towers.

[0003] At present, most of the external nuts for transmission towers on the market do not have the function of anti-theft, and after long-term use, the nuts may be loosened under the influence of external vibration, and thus potential safety hazards may occur. Content of the Utility Model

[0004] The purpose of the utility model is to provide an external anti-loosening and anti-theft nut for transmission towers for users, which can solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: an external anti-loosening and anti-theft nut for transmission towers for users, including a bolt, a nut one and a nut two are sleeved on the outside of the bolt, and an anti-loosening and anti-theft component is arranged at the upper end of the nut one.

[0006] Preferably, the anti-loosening and anti-theft component includes a convex part, a thread one, a thread two, a concave part, a thread three and a thread four. A convex part is arranged at the upper end of the nut one, a concave part is opened at the lower end of the nut two, and the concave part and the convex part are mutually matched.

[0007] Preferably, a thread one is arranged on the outside of the convex part, and a thread three is arranged on the inner side wall of the concave part. The thread one and the thread three are mutually matched.

[0008] Preferably, a thread two is opened on the upper end surface of the nut one, and a thread four is opened on the upper end surface of the nut two. The thread directions of the thread four and the thread two are the same, and the thread four and the thread two are mutually matched with the bolt.

[0009] Preferably, the thread direction of the thread one is opposite to that of the thread on the bolt, and connection components are arranged on the left and right sides of the upper end of the nut two.

[0010] Preferably, the connecting component includes a trapezoidal groove, a trapezoidal hole, and a trapezoidal insert. Trapezoidal grooves are provided on both the left and right sides of the upper end surface of the first nut, trapezoidal holes are provided on both the left and right sides of the upper end surface of the second nut, and a trapezoidal insert is arranged inside the trapezoidal hole and the trapezoidal groove.

[0011] Compared with the prior art, the utility model provides an external anti-loosening and anti-theft nut for a transmission tower user, which has the following beneficial effects:

[0012] By providing a convex portion, a first thread, a second thread, a concave portion, a third thread, and a fourth thread, when the first nut and the second nut are loosened respectively, the other nut will play a limiting role on it, thus playing an anti-loosening role; the arrangement of the trapezoidal groove, the trapezoidal hole, and the trapezoidal insert makes it necessary to insert the trapezoidal bar into the limiting holes and limiting grooves on both sides when the first nut and the second nut are tightened or loosened. At this time, when the first nut is rotated, the first nut can drive the second nut to rotate synchronously through the trapezoidal bar, and then it can be tightened or loosened. If someone steals it, when only one of the nuts is rotated, the nut will be stuck under the limiting action of the other nut, thus improving the anti-theft performance to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural diagram of the utility model;

[0014] Figure 2 is a three-dimensional structural diagram of the first nut of the utility model;

[0015] Figure 3 is a sectional structural diagram of the utility model;

[0016] Figure 4 is the utility model Figure 2 the enlarged structural diagram at A in.

[0017] Among them: 1. Bolt; 2. First nut; 3. Second nut; 4. Convex portion; 5. First thread; 6. Second thread; 7. Concave portion; 8. Third thread; 9. Fourth thread; 10. Trapezoidal groove; 11. Trapezoidal hole; 12. Trapezoidal insert; 13. Anti-loosening and anti-theft component; 14. Connecting component. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Embodiment 1

[0020] Please refer to Figure 1-2 , in the figure, there is an outdoor anti-loosening and anti-theft nut for a transmission tower, including bolt 1. A first nut 2 and a second nut 3 are sleeved outside bolt 1, and an anti-loosening and anti-theft component 13 is arranged at the upper end of the first nut 2.

[0021] Please refer to Figure 2-3 , the anti-loosening and anti-theft component 13 includes a convex part 4, a first thread 5, a second thread 6, a concave part 7, a third thread 8, and a fourth thread 9. A convex part 4 is arranged at the upper end of the first nut 2, and a concave part 7 is opened at the lower end of the second nut 3. The concave part 7 and the convex part 4 match each other.

[0022] In this embodiment: The concave part 7 and the convex part 4 match each other so that the concave part 7 on the second nut 3 can be screwed onto the convex part 4 of the first nut 2.

[0023] Please refer to Figure 2-3 , a first thread 5 is arranged on the outside of the convex part 4, and a third thread 8 is arranged on the inner side wall of the concave part 7. The first thread 5 and the third thread 8 match each other.

[0024] In this embodiment: A person can screw the second nut 3 onto the first nut 2 through the third thread 8 on the concave part 7 and the first thread 5 on the convex part 4.

[0025] Please refer to Figure 2-3 , a second thread 6 is opened on the upper end surface of the first nut 2, a fourth thread 9 is opened on the upper end surface of the second nut 3. The fourth thread 9 and the second thread 6 have the same thread direction, and the fourth thread 9 and the second thread 6 match bolt 1.

[0026] In this embodiment: The fourth thread 9 and the second thread 6 match bolt 1 so that the first nut 2 and the second nut 3 can be screwed onto bolt 1.

[0027] Please refer to Figure 3-4 , the first thread 5 has a thread direction opposite to that of bolt 1, and connection components 14 are arranged on both the left and right sides of the upper end of the second nut 3.

[0028] In this embodiment: The thread 1 of the first nut 5 is opposite to the thread on the bolt 1, so that when the first nut 2 and the second nut 3 are rotated clockwise, they can be tightened downward on the bolt 1, and when the second nut 3 is rotated counterclockwise, it can be tightened downward on the first nut 2; after the bolt 1, the first nut 2, and the second nut 3 are fastened, if the first nut 2 becomes loose, it will rotate counterclockwise upward on the bolt 1 to a certain extent, and when the first nut 2 rotates counterclockwise inside the second nut 3, it will move downward. Thus, the second nut 3 can play a role in restricting the loosening of the first nut 2. If the second nut 3 becomes loose, it will rotate counterclockwise upward on the bolt 1 to a certain extent, and when the second nut 3 rotates counterclockwise on the first nut 2, it will move downward. Thus, the first nut 2 can play a role in restricting the loosening of the second nut 3. The first nut 2 and the second nut 3 restrict each other, so that a good anti-loosening effect can be achieved.

[0029] Working principle: The thread 1 of the first nut 5 is opposite to the thread on the bolt 1, so that when the first nut 2 and the second nut 3 are rotated clockwise, they can be tightened downward on the bolt 1, and when the second nut 3 is rotated counterclockwise, it can be tightened downward on the first nut 2; after the bolt 1, the first nut 2, and the second nut 3 are fastened, if the first nut 2 becomes loose, it will rotate counterclockwise upward on the bolt 1 to a certain extent, and when the first nut 2 rotates counterclockwise inside the second nut 3, it will move downward. Thus, the second nut 3 can play a role in restricting the loosening of the first nut 2. If the second nut 3 becomes loose, it will rotate counterclockwise upward on the bolt 1 to a certain extent, and when the second nut 3 rotates counterclockwise on the first nut 2, it will move downward. Thus, the first nut 2 can play a role in restricting the loosening of the second nut 3. The first nut 2 and the second nut 3 restrict each other, so that a good anti-loosening effect can be achieved.

[0030] Embodiment 2

[0031] Please refer to Figure 1 、 Figure 4 As shown in the figure, the connection component 14 includes a trapezoidal groove 10, a trapezoidal hole 11, and a trapezoidal insert 12. Trapezoidal grooves 10 are provided on both the left and right sides of the upper end surface of the first nut 2, trapezoidal holes 11 are provided on both the left and right sides of the upper end surface of the second nut 3, and trapezoidal inserts 12 are arranged inside the trapezoidal holes 11 and the trapezoidal grooves 10.

[0032] In this embodiment: The trapezoidal insert 12 can play a role in connecting the second nut 3 and the first nut 2. When it is necessary to fasten the components, the operator first rotates the second nut 3 counterclockwise onto the first nut 2. After aligning the trapezoidal hole 11 with the trapezoidal groove 10, the trapezoidal insert 12 is inserted into the trapezoidal groove 10 through the trapezoidal hole 11. Then, the operator can use a hex wrench to rotate the second nut 3 clockwise. The second nut 3 drives the first nut 2 to rotate synchronously through the trapezoidal insert 12, and the first nut 2 and the second nut 3 can be tightened on the bolt 1 to fasten the components. After the fastening is completed, the operator removes the trapezoidal insert 12.

[0033] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising" - "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process - method - article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process - method - article or device.

[0034] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An outdoor anti-loosening and anti-theft nut for transmission towers, comprising a bolt (1), characterized in that: A nut one (2) and a nut two (3) are sleeved on the outer side of the bolt (1), and an anti-loosening and anti-theft component (13) is arranged at the upper end of the nut one (2); The anti-loosening and anti-theft component (13) includes a convex portion (4), a first thread (5), a second thread (6), a concave portion (7), a third thread (8), and a fourth thread (9). A convex portion (4) is arranged at the upper end of the nut one (2), and a concave portion (7) is formed at the lower end of the nut two (3). The concave portion (7) and the convex portion (4) are matched with each other.

2. The anti-loosening and anti-theft nut for outdoor use of a transmission tower according to claim 1, characterized in that: A first thread (5) is arranged on the outer side of the convex portion (4), and a third thread (8) is arranged on the side wall inside the concave portion (7). The first thread (5) and the third thread (8) are matched with each other.

3. The external anti-loosening and anti-theft nut for a transmission tower according to claim 2, characterized in that: A second thread (6) is formed on the upper end surface of the nut one (2), and a fourth thread (9) is formed on the upper end surface of the nut two (3). The fourth thread (9) and the second thread (6) have the same thread direction, and the fourth thread (9) and the second thread (6) are matched with the bolt (1).

4. The externally loosening-proof and theft-proof nut for a transmission tower according to claim 3, characterized in that: The first thread (5) has a thread direction opposite to that of the thread on the bolt (1), and connection components (14) are arranged on the left and right sides of the upper end of the nut two (3).

5. The anti-loosening and anti-theft nut for outdoor use of a transmission tower according to claim 4, characterized in that: The connection component (14) includes a trapezoidal groove (10), a trapezoidal hole (11), and a trapezoidal insert (12). Trapezoidal grooves (10) are formed on the left and right sides of the upper end surface of the nut one (2), trapezoidal holes (11) are formed on the left and right sides of the upper end surface of the nut two (3), and trapezoidal inserts (12) are arranged inside the trapezoidal holes (11) and the trapezoidal grooves (10).

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