Binding-free anti-off insulator

Abstract

The invention discloses a binding-free anti-off insulator, and belongs to the technical field of insulators. The binding-free anti-off insulator comprises an end, external threads, a positioning locking hole, a gland, internal threads and a positioning locking pin, the external threads are arranged on the outer wall of the end, the positioning locking hole is formed in the top of the end, the internal threads are arranged on the inner wall of the gland, the internal threads are matched with the external threads, the positioning locking pin is arranged on the gland, and the positioning locking hole is matched with the positioning locking pin. And the positioning locking pin is inserted into the positioning locking hole. In order to solve the problems that a conventional fixing structure is complex in binding, prone to loosening and the like, the gland and the end are fixed through a threaded connection structure, on the basis, a pin hole structure is additionally arranged between the gland and the end, and the situation that the gland rotates on the end to be loosened is avoided. Compared with a binding structure, the fixing efficiency is improved, and the fixing structure is more stable and reliable and has good operation performance and outstanding technical advantages.

Description

Technical Field

[0001] The invention belongs to the technical field of insulators, and in particular relates to a binding-free anti-line-off insulator. Background Art

[0002] Overhead lines are mainly used for long-distance transmission of electric energy, which are mainly composed of wires, towers, connected insulators and accessories. Insulators are devices installed between conductors of different potentials or between conductors and grounded components, which can withstand voltage and mechanical stress. There are many types of insulators with different shapes. Although the structures and appearances of different types of insulators are quite different, they are all composed of two major parts: insulating parts and connecting hardware.

[0003] For a typical post insulator, a wire groove is provided at the end of the hardware. After the cable is embedded in the wire groove, a gland is used to fix the cable at the end of the hardware so that the cable is pressed and fixed in the wire groove. In the prior art, the gland is fixed to the end of the hardware by a binding structure. Since the binding process is relatively cumbersome, it takes less man-hours in the installation process. Moreover, the stability of the binding structure is not reliable enough, and the phenomenon of wire derailment caused by the loosening of the binding structure often occurs. Summary of the invention

[0004] The technical problem to be solved by the present invention is: how to design an insulator that is free of binding and prevents line derailment.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] The invention discloses a binding-free anti-line insulator, comprising an end, an external thread, a positioning locking hole, a pressure cover, an internal thread, and a positioning locking pin, wherein an external thread is provided on the outer wall of the end, a positioning locking hole is provided on the top of the end, an internal thread is provided on the inner wall of the pressure cover, the internal thread cooperates with the external thread, a positioning locking pin is provided on the pressure cover, and the positioning locking pin is inserted into the positioning locking hole.

[0007] Preferably, there are two positioning locking holes, which are respectively located on both sides of the wire groove on the end.

[0008] Preferably, the positioning locking pin vertically penetrates the top wall of the pressure cover, and a spring is connected between the positioning locking pin and the pressure cover, and the spring continuously applies a downward force to the positioning locking pin.

[0009] Preferably, when viewed from a top perspective, when the gland is rotated counterclockwise on the end head, the internal thread and the external thread are in a tightening process.

[0010] Preferably, the positioning locking pin has an insertion hole extending in the horizontal direction and penetrating therethrough.

[0011] In the above technical scheme, the end head is the end structure of the insulator fitting, which is used to set the wire groove and embed the cable therein, so as to achieve the fixing effect of the cable and the insulator; the external thread of the end head is used to thread with the internal thread of the gland, so as to achieve the fastening of the gland and the end head; in order to prevent the external thread and the internal thread from loosening, the present invention sets a vertically penetrating positioning locking pin on the gland, and inserts the positioning locking pin into the positioning locking hole on the end head, so as to avoid the rotation and loosening of the threaded connection. On this basis, a spring can be set between the positioning locking pin and the gland, and the spring is used to apply a continuous downward force to the positioning locking pin to ensure that the positioning locking pin will not fall out of the positioning locking hole without external force interference. A socket extending in the horizontal direction and passing through can also be provided on the positioning locking pin. When the positioning locking pin is lifted to expose the socket, a small stick can be inserted into the socket horizontally. The blocking effect of the stick can prevent the positioning locking pin from falling, making it convenient for the staff to screw the cover. After the cover is screwed, the stick can be pulled out to allow the positioning locking pin to completely fall into the positioning locking hole.

[0012] The present invention discloses a binding-free anti-derailment insulator. In view of the problems of complicated binding and easy loosening of conventional fixed structures, the present invention uses a threaded connection structure to fix the gland and the end head. On this basis, a pin hole structure is added between the gland and the end head to prevent the gland from rotating on the end head and loosening. Compared with the binding structure, the present invention not only improves the fixing efficiency, but also makes the fixing structure more stable and reliable, and has good operating performance and outstanding technical advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view of the present invention as a whole before assembly;

[0014] Figure 2 is a cross-sectional view of the gland in the present invention;

[0015] Figure 3 It is a three-dimensional diagram of the end in the present invention;

[0016] Figure 4 It is a front view of the whole of the present invention after assembly;

[0017] Figure 5 It is a front view of the positioning locking pin and the insertion hole in the present invention;

[0018] In the figure:

[0019] 1. Terminal 2. External thread 3. Positioning locking hole 4. Gland

[0020] 5. Internal thread 6. Positioning locking pin 7. Wire groove 8. Socket. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention will be described in detail below. In order to avoid too much unnecessary details, the well-known structures or functions will not be described in detail in the following examples. The approximate language used in the following examples can be used for quantitative expression, indicating that the quantity can be allowed to have a certain change without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following examples have the same meaning as those generally understood by those skilled in the art to which the present invention belongs.

[0022] Example 1

[0023] No need to tie off the anti-line insulator, such as Figure 1 to Figure 4 As shown, it includes a terminal 1, an external thread 2, a positioning locking hole 3, a gland 4, an internal thread 5, and a positioning locking pin 6, wherein an external thread 2 is provided on the outer wall of the terminal 1, a positioning locking hole 3 is provided on the top of the terminal 1, an internal thread 5 is provided on the inner wall of the gland 4, the internal thread 5 cooperates with the external thread 2, and a positioning locking pin 6 is provided on the gland 4, and the positioning locking pin 6 is inserted into the positioning locking hole 3. Among them, the terminal 1 is an end structure of an insulator hardware, which is used to set a wire groove 7 and embed the cable therein, so as to achieve the fixing effect of the cable and the insulator; the external thread 2 on the outside of the terminal 1 is used to be threadedly matched with the internal thread 5 inside the gland 4, so as to achieve the fastening of the gland 4 and the terminal 1; in order to prevent the external thread 2 and the internal thread 5 from loosening, the present invention provides a vertically penetrating positioning locking pin 6 on the gland 4, and inserts the positioning locking pin 6 into the positioning locking hole 3 on the terminal 1, so as to avoid the rotation and loosening problems of the threaded connection. On this basis, a spring can be arranged between the positioning locking pin 6 and the pressure cover 4, and the spring can be used to apply a continuous downward force to the positioning locking pin 6 to ensure that the positioning locking pin 6 will not fall out of the positioning locking hole 3 without external interference. A plug hole 8 extending in the horizontal direction and penetrating can also be provided on the positioning locking pin 6. When the positioning locking pin 6 is lifted and the plug hole 8 is exposed, a small stick can be inserted into the plug hole 8 horizontally. The interception effect of the stick can be used to prevent the positioning locking pin 6 from falling, making it easier for the staff to screw the cover. After the cover is screwed, the stick can be pulled out to make the positioning locking pin 6 completely fall into the positioning locking hole 3.

[0024] Example 2

[0025] No need to tie off the anti-line insulator, such as Figure 1 to Figure 4As shown, it includes a terminal 1, an external thread 2, a positioning locking hole 3, a gland 4, an internal thread 5, and a positioning locking pin 6, wherein an external thread 2 is provided on the outer wall of the terminal 1, a positioning locking hole 3 is provided on the top of the terminal 1, an internal thread 5 is provided on the inner wall of the gland 4, the internal thread 5 cooperates with the external thread 2, and a positioning locking pin 6 is provided on the gland 4, and the positioning locking pin 6 is inserted into the positioning locking hole 3. Among them, there are two positioning locking holes 3, and the two positioning locking holes 3 are respectively located on both sides of the wire groove 7 on the terminal 1. The positioning locking pin 6 vertically penetrates the top wall of the gland 4, and a spring is connected between the positioning locking pin 6 and the gland 4, and the spring continuously applies a downward force to the positioning locking pin 6. In a top view, when the gland 4 rotates counterclockwise on the terminal 1, the internal thread 5 and the external thread 2 are in a tightening process. There is a jack 8 extending and penetrating in the horizontal direction on the positioning locking pin 6.

[0026] The embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the scope of the present invention shall be included in the protection scope of the present invention.

Claims

1. Binding-free anti-offline insulator, characterized by The invention comprises an end (1), an external thread (2), a positioning locking hole (3), a pressure cover (4), an internal thread (5), and a positioning locking pin (6), wherein an external thread (2) is provided on the outer wall of the end (1), a positioning locking hole (3) is provided on the top of the end (1), an internal thread (5) is provided on the inner wall of the pressure cover (4), the internal thread (5) matches the external thread (2), a positioning locking pin (6) is provided on the pressure cover (4), and the positioning locking pin (6) is inserted into the positioning locking hole (3).

2. The binding-free anti-line insulator according to claim 1 is characterized in that: There are two positioning locking holes (3), and the two positioning locking holes (3) are respectively located on both sides of the wire groove (7) on the end head (1).

3. The binding-free anti-derailment insulator according to claim 1 is characterized in that: The positioning locking pin (6) vertically penetrates the top wall of the pressure cover (4), and a spring is connected between the positioning locking pin (6) and the pressure cover (4), and the spring continuously applies a downward force to the positioning locking pin (6).

4. The binding-free anti-derailment insulator according to claim 1 is characterized in that: When viewed from above, when the gland (4) is rotated counterclockwise on the end (1), the internal thread (5) and the external thread (2) are in the process of being tightened.

5. The binding-free anti-derailment insulator according to claim 1 is characterized in that: The positioning locking pin (6) is provided with an insertion hole (8) extending in the horizontal direction and penetrating therethrough.

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