Overhead line cotter pin

Abstract

The invention discloses a split pin for an overhead line. The split pin comprises a pin and a fixed pin shaft, one end of the fixed pin shaft is fixedly connected with a first connecting end, and the bottom end of the first connecting end is fixedly connected with a second connecting end; one end of the second connecting end is fixedly connected with a bent end, the front end of the fixed pin shaft is located between the bent end and the second connecting end, and the bent end hooks the front end of the fixed pin shaft, so that the fixed pin shaft is stably fixed in the pin. Through the innovative structural design, the stability and identifiability of the overhead line cotter pin are remarkably improved. Through the synergistic effect of the fixed pin shaft, the first connecting end, the second connecting end, the barbs, the pin withdrawing groove and the bending end, the stable positioning of the fixed pin shaft in the pin is realized, the falling and displacement caused by external force or metal fatigue are effectively prevented, and the safety of an electric power circuit is enhanced. According to the invention, the maintenance cost is reduced, and the reliability and safety of the power line are improved.

Description

Technical Field

[0001] The invention relates to the technical field of overhead line equipment, and in particular to an overhead line split pin. Background Art

[0002] In transmission lines, overhead lines usually use ordinary cotter pins to prevent the fastening nuts from loosening and falling off. Currently, the commonly used pins are cotter pins, closed pins and spring pins. Pins are generally used on bolts of various hardware, mainly for limiting the role. In the field of transmission line hardware protection, cotter pins are more commonly used.

[0003] An existing cotter pin that does not fall off includes a pin body and a clamping pin. The two opposite inner sides of the open side of the pin body are provided with grooves. The ends of the two grooves close to the closed side of the pin body are provided with limit holes. The two ends of the clamping pin slide along the grooves and are respectively clamped in the two limit holes. The clamping pin of the cotter pin that does not fall off strengthens the opening ability of the cotter pin. At the same time, the clamping pin is made of a material with strong rigidity, which prevents the open side of the cotter pin from closing, adds double insurance, prevents the pin from falling off due to metal fatigue during long-term use, and avoids the loss of elasticity of the open side of the cotter pin.

[0004] However, the clamping pin and the clamping pin of the above-mentioned structure are separated, which makes it difficult to ensure the long-term use of the clamping pin. In addition, the clamping pin may be easily detached due to wind and sun, rust, breakage and loosening, resulting in disconnection and other faults. In addition, due to problems such as installation angle and on-site lighting, there are disadvantages such as low recognition rate, long time consumption and low efficiency when personnel operate the drone to detect the status of the clamping pin. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an overhead line cotter pin to improve the stability and identifiability of the cotter pin, reduce the risk of falling off and displacement, and facilitate drone detection.

[0006] In order to solve the above technical problems, the present invention provides an overhead line split pin, comprising:

[0007] Pins and retaining pins;

[0008] One end of the fixed pin is fixedly connected to a first connection end, and a bottom end of the first connection end is fixedly connected to a second connection end;

[0009] One end of the second connecting end is fixedly connected to a bent end, the front end of the fixed pin is located between the bent end and the second connecting end, and the bent end hooks the front end of the fixed pin to firmly fix the fixed pin in the pin.

[0010] Preferably, a first indicator is provided on the surface of the fixing pin.

[0011] Preferably, a plurality of first slots are formed on the surface of the fixing pin, a plurality of second slots are formed on the inner wall of the first display element, and the inside of the first display element is adhered to the surface of the fixing pin by glue.

[0012] Preferably, a second display component is sleeved on the surface of the fixing pin, and the second display component is located below the first display component.

[0013] Preferably, a plurality of first reflective stickers are fixedly connected to the surface of the first display element, and a plurality of second reflective stickers are fixedly connected to the surface of the second display element.

[0014] Preferably, the second display element is cylindrical, the first display element is spherical, and both the second display element and the first display element are made of opaque acrylic material.

[0015] Preferably, a barb is fixedly connected to the front end of the fixing pin shaft, and the right end of the barb is located above the pin hole of the pin.

[0016] Preferably, a pin withdrawal groove is provided at the front end of the fixed pin shaft, the left end of the barb is fixedly connected to the inner wall of the pin withdrawal groove, and the barb is adapted to the pin withdrawal groove.

[0017] Preferably, the second connection end is located directly above the pin, and the connection point between the first connection end and the second connection end is lower than the top end of the pin.

[0018] Preferably, the end of the bent end is bent upward and forms a U-shaped groove, and the front end of the fixing pin is tightly attached to the U-shaped groove formed by the bent end.

[0019] The implementation of the present invention has the following beneficial effects: The present invention significantly improves the stability and recognizability of the overhead line cotter pin through innovative structural design. Through the synergistic effect of the fixed pin shaft, the first connecting end, the second connecting end, the barb, the pin withdrawal groove and the bent end, the fixed pin shaft is firmly positioned in the pin, which effectively prevents the falling off and displacement caused by external force or metal fatigue, and enhances the safety of the power line. At the same time, the bright colors of the first display element and the second display element, as well as the matching first reflective sticker and the second reflective sticker, enable the drone to easily identify the state of the fixed pin shaft during inspections, and the reflective effect of the reflective sticker in the sun further improves the recognition efficiency, ensuring the high efficiency and accuracy of power line maintenance. The present invention not only reduces maintenance costs, but also improves the reliability and safety of power lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The present invention is a schematic structural diagram of an overhead line cotter pin according to an embodiment of the present invention.

[0022] Figure 2 The present invention is a schematic diagram of a front cross-sectional structure of an overhead line cotter pin according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure after the pins are removed according to an embodiment of the present invention.

[0024] Figure 4 Schematic diagram of the structure of the first display element in an embodiment of the present invention.

[0025] Figure 5 Schematic diagram of the structure of the second display element in an embodiment of the present invention.

[0026] Figure 6 For the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0027] Figure 7 Another schematic structural diagram of an overhead line cotter pin according to an embodiment of the present invention.

[0028] The accompanying drawings are marked as follows: 1. pin; 2. fixed pin shaft; 3. first display element; 4. first reflective tape; 5. second display element; 6. second reflective tape; 7. first connecting end; 8. second connecting end; 9. barb; 10. pin withdrawal groove; 11. bending end; 12. second slot; 13. first slot; 14. third display element; 15. transitional bending portion; 16. arc-shaped bending portion; 17. fixed bending portion. DETAILED DESCRIPTION

[0029] The following descriptions of the embodiments are with reference to the accompanying drawings to illustrate specific embodiments in which the present invention can be implemented. In the description of the present invention, it should be understood that the terms "longitudinal", "length", "circumferential", "front", "rear", "left", "right", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0030] Please refer to Figure 1 As shown, an embodiment of the present invention provides an overhead line split pin, comprising:

[0031] Pin 1 and fixing pin 2;

[0032] One end of the fixed pin shaft 2 is fixedly connected to a first connection end 7, and the bottom end of the first connection end 7 is fixedly connected to a second connection end 8;

[0033] One end of the second connecting end 8 is fixedly connected to a bent end 11, and the front end of the fixing pin 2 is located between the bent end 11 and the second connecting end 8. The bent end 11 hooks the front end of the fixing pin 2 so that the fixing pin 2 is firmly fixed in the pin 1.

[0034] Specifically, please combine Figures 2 to 6 As shown, in the embodiment of the present invention, a pin hole is radially provided at the front end of the pin 1, and the fixed pin shaft 2 is inserted into the pin hole at the front end of the pin 1, and the right end of the fixed pin shaft 2 is fixedly connected with a first connecting end 7, the first connecting end 7 is spiral-shaped, and the first connecting end 7 has elasticity, and the bottom end of the first connecting end 7 is fixedly connected with a second connecting end 8, so that the right end of the second connecting end 8 is connected to the left end of the first connecting end 7, and the second connecting end 8 is in an arc shape. In a normal state, the elastic force of the first connecting end 7 is used to make the second connecting end 8 have The left end of the second connecting end 8 is fixedly connected with the bending end 11 under the upward pulling force, and the front end of the fixed pin 2 is located between the bending end 11 and the second connecting end 8. Under the setting of the bending end 11, when the fixed pin 2 is inserted into the pin 1, the bending end 11 can be hooked on the front end of the fixed pin 2, so that the fixed pin 2 is firmly fixed in the pin 1, effectively reducing the risk of falling off and displacement, and using the elastic force of the first connecting end 7 to ensure the contact tightness between the fixed pin 2 and the bending end 11.

[0035] A first display component 3 is provided on the surface of the fixed pin shaft 2. Through the setting of the first display component 3, the state of the cotter pin can be identified more conveniently and intuitively, and the recognition rate of the drone in detecting the state of the fixed pin shaft 2 is improved. The surfaces of the fixed pin shaft 2, the first connecting end 7, the second connecting end 8 and the bending end 11 are distinguished from the surrounding hardware by electroplating, so that they are electroplated in red, thereby improving the accuracy and efficiency of the cotter pin identification. At the same time, thermochromic paint is sprayed on the surfaces of the fixed pin shaft 2, the first connecting end 7, the second connecting end 8 and the bending end 11. The color of the cotter pin is identified by an external online video device to judge the temperature of the corresponding hardware, thereby realizing remote monitoring of the line body temperature and heating defect judgment.

[0036] like Figure 1 , Figure 2 and Figure 3As shown, the front end of the fixed pin 2 is fixedly connected with a barb 9, and the right end of the barb 9 is located above the pin hole of the pin 1. The front end of the fixed pin 2 can be limited by the barb 9, thereby preventing the fixed pin 2 from being pulled out from the right side, and the barb 9 is elastic.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, a pin withdrawal groove 10 is provided at the front end of the fixed pin shaft 2, and the left end of the barb 9 is fixedly connected to the inner wall of the pin withdrawal groove 10, and the barb 9 is adapted to the pin withdrawal groove 10. Through the setting of the pin withdrawal groove 10, it is convenient to insert the front end of the fixed pin shaft 2 into the pin hole of the pin 1 at the beginning, until the barb 9 pops out from the pin withdrawal groove 10, and the fixed pin shaft 2 can be stuck at the front end of the pin 1, effectively preventing the fixed pin shaft 2 from slipping, and further preventing the fixed pin shaft 2 from falling off, and the barb 9 can be pressed into the pin withdrawal groove 10, so that the fixed pin shaft 2 can be pulled out from the right direction, so that the barb 9 pressed into the pin withdrawal groove 10 will not hinder the insertion of the fixed pin shaft 2.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, the first display component 3 is located at the right end of the fixed pin shaft 2, and the first display component 3 is sleeved on the surface of the fixed pin shaft 2, which can facilitate the installation of the first display component 3. It only needs to be inserted from the left end of the fixed pin shaft 2 and then moved upward.

[0039] like Figure 6 As shown, a plurality of first grooves 13 are provided on the surface of the fixed pin shaft 2, a plurality of second grooves 12 are provided on the inner wall of the first display component 3, and the inside of the first display component 3 is glued to the surface of the fixed pin shaft 2 by glue. By setting the second grooves 12 and the first grooves 13, the stability of the first display component 3 fixed to the surface of the fixed pin shaft 2 can be improved.

[0040] like Figure 1 , Figure 2 and Figure 3 As shown, the surface of the fixed pin shaft 2 is sleeved with a second display component 5, and the second display component 5 is located below the first display component 3. The setting of the second display component 5 can not only prevent the fixed pin shaft 2 from sliding freely in the pin 1, but also further enhance the observation and identification of the fixed pin shaft 2.

[0041] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, a plurality of first reflective stickers 4 are fixedly connected to the surface of the first display member 3, and a plurality of second reflective stickers 6 are fixedly connected to the surface of the second display member 5. By setting the first reflective stickers 4 and the second reflective stickers 6, the first display member 3 and the second display member 5 can both have a reflective effect under the sunlight, so it is convenient for personnel to control the drone to observe the state of the fixed pin 2, and the first reflective stickers 4 and the second reflective stickers 6 are both made of high temperature resistant materials. At the same time, the first reflective stickers 4 and the second reflective stickers 6 have a contrasting color with the fixed pin 2, the first connecting end 7, the second connecting end 8 and the bending end 11, so as to improve the observation and recognition of the fixed pin 2.

[0042] like Figure 1 and Figure 2 As shown, the second connecting end 8 is located directly above the pin 1, and the connection between the first connecting end 7 and the second connecting end 8 is lower than the top of the pin 1. When the fixed pin 2 is fixedly connected to the pin 1, the second connecting end 8 does not contact the pin 1, and the connection between the first connecting end 7 and the second connecting end 8 can limit the right side of the pin 1. When the fixed pin 2 needs to be removed and replaced, it is only necessary to press the second connecting end 8 downward and drive the bending end 11 to move downward, so that the front end of the fixed pin 2 is separated from the bending end 11, and then the second connecting end 8 is moved toward the rear of the pin 1. At this time, the elastic force of the first connecting end 7 is used to make the bending end 11 automatically bounce upward, and then the fixed pin 2 can be slid to the right for removal.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, the end of the bending end 11 is bent upward and forms a U-shaped groove, and the front end of the fixed pin shaft 2 is tightly attached to the U-shaped groove formed by the bending end 11, so that the bending end 11 has a good fastening and limiting effect on the fixed pin shaft 2, preventing the fixed pin shaft 2 from falling off and displacement.

[0044] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, the second display element 5 is cylindrical, the first display element 3 is spherical, and the second display element 5 and the first display element 3 are both made of opaque acrylic material, so that the surface colors of the first display element 3 and the second display element 5 are bright, specifically set to green, so that the first display element 3 and the second display element 5 can be easily distinguished from the fixed pin 2 in color, and have good durability under long-term sunlight.

[0045] For example Figure 7As shown, as a further improvement of the embodiment of the present invention, a third display member 14, a transition curved portion 15, an arcuate curved portion 16 and a fixed curved portion 17 are provided on the fixed pin shaft 2. The third display member 14 is sleeved on the surface of the fixed pin shaft 2 and fixed on the fixed pin shaft 2 by glue to ensure that it does not fall off in harsh environments. Through the setting of the above structure, the third display member 14 adopts a green acrylic ball, so that the design of the green acrylic third display member 14 significantly improves the visibility of the fixed pin shaft 2. The end of the fixed curved portion 17 is bent upward to form a U-shaped groove, so that the front end of the fixed pin shaft 2 is set in the U-shaped groove of the fixed curved portion 17, ensuring that the opening part of the fixed pin shaft 2 is easy to open and close, and should fit tightly after closing to prevent loosening. Under the setting of the arcuate curved portion 16, the inner wall of the arcuate curved portion 16 is in close contact with the outer wall of the pin 1, ensuring the overall stability, and using the setting of the transition curved portion 15, it can prevent the fixed pin shaft 2 from sliding freely in the pin hole of the pin 1.

[0046] The working principle and use process of the present invention are as follows:

[0047] When in use, first insert the first display piece 3 into the right end of the fixed pin shaft 2 and glue it to the surface of the fixed pin shaft 2 by glue, then slide the second display piece 5 into the surface of the fixed pin shaft 2, and then directly insert the front end of the fixed pin shaft 2 into the pin hole of the pin 1 until the barb 9 disengages from the pin withdrawal groove 10 and limits the front end of the fixed pin shaft 2 to prevent it from sliding to the right, then press the second connecting end 8 downward, and press and move the bent end 11 to the bottom of the fixed pin shaft 2, and then make the front end of the fixed pin shaft 2 located in the U-shaped groove of the bent end 11, and the elastic force of the first connecting end 7 can be used to ensure the contact tightness of the bent end 11 and the fixed pin shaft 2, so that the special shape design can make the fixed pin shaft 2 more firmly fixed in the power line, effectively reducing the risk of falling off and displacement, and when the personnel control the drone to observe the pin 1, the clear colors of the first display piece 3 and the second display piece 5 can be used to identify the state of the fixed pin shaft 2, thereby improving the accuracy and efficiency of the split pin recognition.

[0048] From the above description, it can be seen that compared with the prior art, the beneficial effect brought by the embodiments of the present invention is that: the present invention can directly insert the front end of the fixed pin into the pin hole of the pin by setting the matching settings between the fixed pin shaft, the first connecting end, the second connecting end, the barb, the pin withdrawal groove and the bent end, until the barb disengages from the pin withdrawal groove and limits the front end of the fixed pin shaft to prevent it from sliding to the right, and then press the second connecting end downward, and press and move the bent end to the bottom of the fixed pin shaft, and then make the front end of the fixed pin shaft be located in the U-shaped groove of the bent end, and the elastic force of the first connecting end can be utilized to ensure the contact tightness between the bent end and the fixed pin shaft, so that the special shape design can make the fixed pin shaft more firmly fixed in the power line, effectively reducing the risk of falling off and displacement. The present invention can facilitate observation of the use status of the fixed pin shaft by setting the first display piece, the first reflective tape, the second display piece and the second reflective tape in coordination with each other, that is, a person controls the drone to observe the first display piece and the second display piece, and the bright colors of the first display piece and the second display piece are used to make it easy for the person to observe the status of the fixed pin shaft, and the first reflective tape and the second reflective tape can also reflect sunlight, so that the surfaces of the second display piece and the first display piece have a reflective effect, thereby improving the accuracy and efficiency of the split pin recognition.

[0049] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. An overhead line split pin, characterized in that: include: Pins and retaining pins; One end of the fixed pin is fixedly connected to a first connection end, and a bottom end of the first connection end is fixedly connected to a second connection end; One end of the second connecting end is fixedly connected to a bent end, the front end of the fixed pin is located between the bent end and the second connecting end, and the bent end hooks the front end of the fixed pin to firmly fix the fixed pin in the pin.

2. The overhead line split pin according to claim 1, characterized in that: A first display element is disposed on the surface of the fixing pin.

3. The overhead line split pin according to claim 2, characterized in that: The surface of the fixed pin shaft is provided with a plurality of first slots, the inner wall of the first display component is provided with a plurality of second slots, and the inside of the first display component is adhered to the surface of the fixed pin shaft by glue.

4. The overhead line split pin according to claim 3, characterized in that: A second display component is also sleeved on the surface of the fixed pin shaft, and the second display component is located below the first display component.

5. The overhead line split pin according to claim 4, characterized in that: A plurality of first reflective stickers are fixedly connected to the surface of the first display element, and a plurality of second reflective stickers are fixedly connected to the surface of the second display element.

6. The overhead line split pin according to claim 4, characterized in that: The second display element is cylindrical, the first display element is spherical, and both the second display element and the first display element are made of opaque acrylic material.

7. The overhead line split pin according to claim 1, characterized in that: The front end of the fixed pin shaft is fixedly connected with a barb, and the right end of the barb is located above the pin hole of the pin.

8. The overhead line split pin according to claim 7, characterized in that: A pin withdrawal groove is provided at the front end of the fixed pin shaft, the left end of the barb is fixedly connected to the inner wall of the pin withdrawal groove, and the barb is matched with the pin withdrawal groove.

9. The overhead line split pin according to claim 1, characterized in that: The second connection end is located directly above the pin, and a connection point between the first connection end and the second connection end is lower than a top end of the pin.

10. The overhead line split pin according to claim 1, characterized in that: The end of the bent end is bent upward and forms a U-shaped groove, and the front end of the fixed pin shaft is tightly attached to the U-shaped groove formed by the bent end.

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