An automatic connector for long span overhead lines

Abstract

The application relates to the technical field of line connection, in particular to an automatic connector for a large-span overhead line, which comprises a first shell and a second shell that are buckled to each other to form a sealed cavity, a first clamp body, a second clamp body and a fastener penetrating through the first clamp body and the second clamp body are arranged in the sealed cavity, a limiting structure is arranged between the first clamp body and the second clamp body, and elastic sliding members are arranged between the first clamp body and the first shell and between the second clamp body and the second shell. The first clamp body, the second clamp body, a reinforcing associated piece, a compression sealing piece and the first shell and the second shell are fastened together to form an integrated stable structure through the fastening connection of the fastener, the relative movement of the first clamp body, the second clamp body and the first shell and the second shell can be effectively avoided, then the influence of external force on the overall sealing performance can be avoided, and the waterproof performance of the whole body is effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of line connection, in particular to an automatic connector for a large-span overhead line. BACKGROUND

[0002] In overhead line engineering such as power transmission and communication network, a wire clamp as a key connection component mainly includes a clamp body and a bolt fastener, and the clamp body is fastened by the bolt to provide sufficient clamping force, effectively meeting the strength requirement of line connection. Especially in the field of large-span power transmission scenarios (such as cross-mountain and cross-bridge lines), bolt fastening can effectively prevent the wire clamp from loosening under strong wind, vibration or mechanical load, and ensure the stability of line operation. In order to further improve the stability of the line in complex climate conditions (such as rain, snow and hail climate), an outer shell is usually added to resist the erosion and impact of rain, snow and hail.

[0003] However, the existing outer shell and clamp body are usually independent of each other. During the line connection process, the clamp body needs to be installed first and fastened by the bolt to complete the clamping and fixing of the wire body, and then the outer shell is installed, the outer shell is directly sleeved on the clamp body and buckled together to form a sealed cavity, and the clamp body and the bolt are located in the sealed cavity. The convenience of the whole line connection process is low, and the shell is only simply buckled and connected, the sealing performance is low, and the waterproof performance is poor. Moreover, the integration degree of the whole structure of the wire clamp is low, when the outer shell is subjected to external force, the relative movement between the clamp body and the outer shell is easy to occur, small gaps are formed or the sealing of some areas is invalid, which further reduces the overall sealing performance. After the sealing performance is reduced, external moisture, salt mist and the like may easily enter the sealed cavity, corrode the clamp body, the bolt or the wire body, eventually cause short circuit or poor contact, and then reduce the stability of long-term operation of the line. In addition, in order to enhance the sealing performance of the shell, some wire clamps will use fasteners to fasten the shell, but this will further reduce the convenience of line connection. SUMMARY

[0004] The present application provides an automatic connector for a large-span overhead line to solve the problem of low sealing performance and poor waterproof effect of line connection under complex climate conditions in the related art.

[0005] The application provides an automatic connector for a large-span overhead line, which comprises a first shell and a second shell that are buckled to form a sealed cavity, a first clamp body, a second clamp body and a fastener penetrating through the first clamp body and the second clamp body are arranged in the sealed cavity, a limiting structure is arranged between the first clamp body and the second clamp body, the first clamp body corresponds to the first shell, the second clamp body corresponds to the second shell, elastic sliding members are arranged between the first clamp body and the first shell and between the second clamp body and the second shell, the first clamp body and the first shell and the second clamp body and the second shell move along the fastener in the axial direction; a reinforcing associated member is slidably arranged on the fastener, the first shell and the second shell are each provided with the reinforcing associated member; a sealing body is fixedly connected to the first shell and the second shell; a compression sealing member is in one-to-one correspondence with the sealing body and is slidably arranged on the fastener; when the first shell and the second shell are buckled, the elastic sliding members generate an elastic force for pre-clamping the line body by the first clamp body and the second clamp body; the reinforcing associated member, the compression sealing member, the first clamp body and the second clamp body are tightly connected through the fastener, the reinforcing associated member rigidly connects the first clamp body and the first shell and the second clamp body and the second shell; the compression sealing member compresses the sealing body to form a two-stage sealing area; the first shell is provided with a fastening opening and a sealing cover.

[0006] In a possible implementation mode, the elastic sliding member comprises a limiting track, a spring column, a limiting block and a sliding block, the first shell and the second shell are fixedly connected with corresponding limiting tracks and spring columns respectively, the first clamp body and the second clamp body are fixedly connected with corresponding limiting blocks and sliding blocks respectively, the sliding block moves in the axial direction along the spring column and is subjected to an elastic force, the limiting block slides along the limiting track, and the end of the spring column is detachably connected with a limiting end for limiting the limiting block.

[0007] In a possible implementation mode, the spring column comprises a first spring, a second spring and a connecting column, the first spring, the second spring and the sliding block are slidably sleeved on the connecting column, the connecting column is fixedly installed in the first shell / second shell, and the sliding block is located between the first spring and the second spring.

[0008] In a possible implementation mode, the compression sealing member is located between the reinforcing associated member and the first clamp body / second clamp body, and a limiting table is fixedly connected to the compression sealing member, the reinforcing associated member is slidably connected with the fastener through the limiting table, and the limiting table rigidly connects the compression sealing member and the first clamp body / second clamp body.

[0009] In a possible implementation mode, the reinforcing associated member comprises a clamping seat, a connecting body that is slidably sleeved on the fastener and is provided with a clamping head, the first shell and the second shell are fixedly connected with corresponding clamping seats respectively, and the clamping head and the clamping seat are buckled together.

[0010] In a possible implementation mode, the clamping head and the clamping seat are in one-to-one correspondence with the edges of the first shell, and the sealing bodies are continuously distributed along the buckling edges of the sealed cavity.

[0011] In a possible implementation mode, a waterproof platform is arranged at the fastening opening, and the sealing cover is sealingly connected with the waterproof platform.

[0012] In a possible implementation mode, the limiting structure comprises a limiting column fixedly arranged on the first clamping body and a limiting slot arranged on the second clamping body, and the limiting column is slidingly inserted into the limiting slot.

[0013] The one or more technical solutions in the embodiments of the present application have at least one of the following technical effects: the automatic connector for the large-span overhead line provided by the embodiments of the present application is fastened and connected by the fastener, so that the first clamping body, the second clamping body, the reinforcing associated piece, the compression sealing piece, and the first shell and the second shell are fastened and connected together to form an integrated stable structure, which can effectively prevent the first clamping body and the second clamping body from moving relative to the first shell and the second shell, thereby avoiding the influence of external force on the overall sealing performance, and effectively improving the overall waterproof performance; the reinforcing associated piece synchronously enhances the sealing performance of the primary sealing area during the fastening and connecting process; the compression sealing piece forms a secondary sealing area at the inside buckle edge of the sealing cavity during the fastening and connecting process, further improves the overall sealing performance, and the secondary sealing area and the primary sealing area are in a relatively independent state, which can effectively reduce the mutual influence between the two and improve the reliability of the overall sealing performance. In addition, the present application also has the advantages of convenient and fast connection process and convenient production and assembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a whole structure schematic diagram of an automatic connector for a large-span overhead line provided by the embodiments of the present application.

[0015] Figure 2 is a local structure schematic diagram of an automatic connector for a large-span overhead line provided by the embodiments of the present application.

[0016] Figure 3 is a local sectional view schematic diagram of an automatic connector for a large-span overhead line provided by the embodiments of the present application.

[0017] Figure 4 is an explosion structure schematic diagram of a limiting rail, a limiting block, a clamping seat and a clamping head of an automatic connector for a large-span overhead line provided by the embodiments of the present application.

[0018] Figure 5 is a structure schematic diagram of a connecting body and a clamping seat of an automatic connector for a large-span overhead line provided by the embodiments of the present application.

[0019] Figure 6It is a structural schematic view of an elastic sliding piece of an automatic connector for a large-span overhead line provided by the embodiment of the present application.

[0020] In the figure: 1, first clamping body; 2, second clamping body; 3, fastener; 31, bolt; 32, nut; 4, first shell; 5, second shell; 6, elastic sliding piece; 61, limiting track; 62, spring column; 621, first spring; 622, second spring; 623, connecting column; 63, limiting block; 64, sliding block; 65, limiting end; 7, reinforcing associated piece; 71, clamping seat; 72, clamping head; 73, connecting body; 8, sealing cover; 9, fastening opening; 10, limiting structure; 101, limiting column; 102, limiting groove; 11, sealing body; 12, compression sealing piece; 13, limiting platform; 14, waterproof platform; 15, wire body. DETAILED DESCRIPTION

[0021] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6The utility model provides an automatic connector for long-span overhead line, including first clamping body 1, second clamping body 2, fastener 3 and the first shell 4 and the second shell 5 that can mutually buckle and form sealed cavity, the first shell 4 and the second shell 5 are provided with sealing element on the buckling surface, and form primary sealed area after buckling, fastener 3 passes through first clamping body 1 and second clamping body 2, and three are located in sealed cavity, and first clamping body 1 and second clamping body 2 are correspondingly installed in first shell 4 and second shell 5 through elastic slide 6 respectively, first clamping body 1 is installed in first shell 4, and second clamping body 2 is installed in second shell 5, and the limiting structure 10 is arranged between first clamping body 1 and second clamping body 2, the limiting structure 10 makes first clamping body 1 and second clamping body 2 mutually align, and elastic slide 6 makes first clamping body 1 and first shell 4 and second clamping body 2 and second shell 5 elastically slide and connect in the axial direction of fastener 3, to make first shell 4 and second shell 5 mutually align, and be connected together quickly with two quick buckling.

[0023] Referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5The first shell 4 and the second shell 5 are connected with reinforcing associated parts 7, the reinforcing associated parts 7 are slidingly arranged on the fastener 3, the sealing cavity is continuously provided with sealing bodies 11 on the clamping edges, the first shell 4 and the second shell 5 are fixedly connected with the corresponding sealing bodies 11, the sealing bodies 11 on the first shell 4 and the second shell 5 are preliminarily adhered together after the first shell 4 and the second shell 5 are clamped, the first shell 4 and the second shell 5 are both provided with compression sealing parts 12, and the compression sealing parts 12 are slidingly arranged on the fastener 3. When the fastener 3 is tightened, the reinforcing associated parts 7, the compression sealing parts 12 and the first clamping body 1 and the second clamping body 2 are tightly connected together, wherein the first clamping body 1 and the first shell 4 and the second clamping body 2 and the second shell 5 are respectively rigidly connected with the corresponding reinforcing associated parts 7, and form a stable integrated structure as a whole, so that the situation that the sealing performance is affected due to displacement of the shell (the shell composed of the first shell 4 and the second shell 5) caused by external force is effectively avoided, and in the connecting process, the reinforcing associated parts 7 synchronously enhance the secondary compression force of the clamping surface of the first shell 4 and the second shell 5, the sealing performance of the primary sealing area is improved, the waterproof performance of the overall structure is enhanced, the compression sealing parts 12 compress the preliminarily adhered sealing bodies 11, the sealing bodies 11 form a secondary sealing area at the clamping edge on the inner side of the shell, the sealing performance of the overall structure is further improved, and the waterproof performance of the overall structure is further improved, and the secondary sealing area and the primary sealing area are relatively independent, the influence between them is small, and the reliability of the overall sealing structure is improved.

[0024] Referring to Figure 2 , Figure 4 and Figure 6 , the elastic sliding part 6 comprises a limiting track 61, a spring column 62, a limiting block 63 and a sliding block 64, the first shell 4 and the second shell 5 are fixedly connected with the corresponding limiting track 61 and spring column 62 respectively, the spring column 62 is symmetrically distributed front and back, the first clamping body 1 and the second clamping body 2 are fixedly connected with the corresponding limiting block 63 and sliding block 64 respectively, the limiting track 61 is several in number and two limiting tracks 61 form a group, one spring column 62 corresponds to one group of limiting tracks 61, the two limiting tracks 61 in the same group are symmetrically distributed left and right and are respectively located on the two sides of the spring column 62, the limiting block 63 corresponds to the limiting track 61 one by one and slides along the limiting track 61, the spring column 62 comprises a first spring 621, a second spring 622 and a connecting column 623, the first spring 621, the second spring 622 and the sliding block 64 are slidingly sleeved on the connecting column 623, the connecting column 623 is fixedly installed in the first shell 4 / second shell 5, the sliding block 64 is located between the first spring 621 and the second spring 622, and the top of the connecting column 623 is threadedly connected with a limiting end 65, in the assembly process, the first spring 621, the sliding block 64 and the second spring 622 are sleeved on the connecting column 623 in sequence, and then the limiting end 65 is screwed, so that the first clamping body 1 is quickly assembled in the first shell 4 and the second clamping body 2 is quickly assembled in the second shell 5.

[0025] Referring to Figure 2 , Figure 3 and Figure 4 , the fastener 3 includes a bolt 31 and a nut 32, the bolt 31 is sequentially penetrated through the second clamp body 2 and the first clamp body 1 from bottom to top and then is screwed with the nut 32, the compression sealing piece 12 is located between the reinforcing associated piece 7 and the first clamp body 1 / second clamp body 2 and is slidably arranged on the bolt 31, and a limiting table 13 is fixedly connected on the compression sealing piece 12, the reinforcing associated piece 7 is slidably connected with the bolt 31 through the limiting table 13, and the compression sealing piece 12 is gradually abutted with the first clamp body 1 / second clamp body 2 first, and then the reinforcing associated piece 7 is tightly connected with the compression sealing piece 12 under the limiting of the limiting table 13 by tightening the nut 32.

[0026] Referring to Figure 2 , Figure 3 , Figure 4 and Figure 5 , the reinforcing associated piece 7 includes a clamping seat 71, a connecting body 73 slidably arranged on the bolt 31 and provided with a clamping head 72, the first shell 4 and the second shell 5 are respectively fixedly connected with corresponding clamping seats 71, the clamping head 72 and the clamping seat 71 are buckled together, and the clamping head 72 and the clamping seat 71 are each corresponding to the edge of the first shell 4; as shown in Figure 5 , the clamping head 72 is arranged on each of the four side ends of the connecting body 73; the clamping head 72 on each side of the connecting body 73 is buckled with the corresponding clamping seat 71 to stably connect the first clamp body 1 and the first shell 4 and the second clamp body 2 and the second shell 5 together, and in the process of assembling the automatic connector, the connection of the connecting body 73 and the first shell 4 / second shell 5 can be completed by only pressing the clamping head 72 to buckle it with the clamping seat 71, which is very convenient and fast, wherein the clamping head 72 and the connecting body 73 are both made of metal material, and the clamping seat 71 and the first shell 4 and the second shell 5 are both made of insulating material, in addition, the reinforcing associated piece 7 can also be fixedly connected in the first shell 4 / second shell 5 by screws, and this connection mode has higher strength but relatively lower assembly convenience, which can be selected according to different needs.

[0027] Referring to Figure 1 and Figure 3 , the first shell 4 is provided with a fastening opening 9 and a sealing cover 8 corresponding to the fastening opening 9, the fastening opening 9 provides an operation space for tightening the nut 32, and the sealing cover 8 closes the fastening opening 9 after being clamped and fixed in the line body 15, so that the sealing cavity is in a completely sealed state.

[0028] Referring to Figure 2 and Figure 4The limiting structure 10 comprises a limiting column 101 fixed on the first clamping body 1 and a limiting groove 102 arranged on the second clamping body 2, and the limiting column 101 is slidingly inserted into the limiting groove 102, so that the first clamping body 1 and the second clamping body 2 are kept in the aligned state.

[0029] Referring to Figure 3 The fastening opening 9 is provided with a waterproof platform 14, and the sealing cover 8 is sealingly connected with the waterproof platform 14, so that the waterproof performance of the sealing cavity is further improved. One side of the sealing cover 8 is hingedly connected with the first shell 4, and the other side is clamped with the first shell 4 (the technical features of the hinge and the clamp are not shown in the figure).

[0030] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature can be directly above or obliquely above the second feature, or it can only mean that the horizontal height of the first feature is higher than that of the second feature. The first feature can be directly below or obliquely below the second feature, or it can only mean that the horizontal height of the first feature is lower than that of the second feature.

[0031] In the description of the present application, it should be further pointed out that, unless otherwise clearly specified and limited, the terms "arranged", "connected", "mounted", and "connected" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection, or sliding connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium, or internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The embodiments of the specific implementation are the preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. An automatic connector for long-span overhead line, comprising a first shell and a second shell which are buckled to form a sealed cavity, and a first clamp, a second clamp and a fastener penetrating the first clamp and the second clamp are arranged in the sealed cavity, characterized in that: a limiting structure is arranged between the first clamp and the second clamp, the first clamp corresponds to the first shell, the second clamp corresponds to the second shell, and an elastic sliding part is arranged between the first clamp and the first shell and between the second clamp and the second shell, the first clamp and the first shell and the second clamp and the second shell move along the axial direction of the fastener; a fastening opening and a sealing cover are arranged on the first shell; the elastic sliding part comprises a limiting track, a spring column, a limiting block and a sliding block, the first shell and the second shell are fixedly connected with corresponding limiting tracks and spring columns, the first clamp and the second clamp are fixedly connected with corresponding limiting blocks and sliding blocks, the sliding block moves along the axial direction of the spring column and is subjected to elastic force, the limiting block slides along the limiting track, and the end of the spring column is detachably connected with a limiting end which limits the limiting block; a reinforcing associated part is arranged on the fastener, and the first shell and the second shell are both provided with the reinforcing associated part; the reinforcing associated part comprises a connecting body which is sleeved on the fastener and provided with a clamping head, and the first shell and the second shell are fixedly connected with corresponding clamping seats, the clamping head and the clamping seat are buckled together, and the clamping head and the clamping seat are in one-to-one correspondence with the edges of the first shell; a sealing body is fixedly connected to the first shell and the second shell; a compression sealing part is in one-to-one correspondence with the sealing body and is arranged on the fastener in a sliding manner; the compression sealing part is located between the reinforcing associated part and the first clamp / second clamp, a limiting table is fixedly connected to the compression sealing part, the reinforcing associated part is slidably connected to the fastener through the limiting table, and the reinforcing associated part is rigidly connected to the compression sealing part and the first clamp / second clamp through the limiting table; the compression sealing part compresses the sealing body to form a two-stage sealing area; when the first shell and the second shell are buckled, the elastic sliding part generates an elastic force for pre-clamping the wire body by the first clamp and the second clamp; the reinforcing associated part, the compression sealing part, the first clamp and the second clamp are tightly connected through the fastener, and the reinforcing associated part rigidly connects the first clamp and the first shell and the second clamp and the second shell. the spring column comprises a first spring, a second spring and a connecting column, the first spring, the second spring and the sliding block are sleeved on the connecting column, the connecting column is fixedly installed in the first shell / second shell, and the sliding block is located between the first spring and the second spring.

2. An automatic connector for long span overhead lines as claimed in claim 1, wherein: the clamping head and the clamping seat are in one-to-one correspondence with the edges of the first shell; the sealing bodies are continuously distributed along the buckling edges of the sealed cavity.

3. An automatic connector for long span overhead lines as claimed in claim 1, wherein: a waterproof table is arranged at the fastening opening, and the sealing cover is sealingly connected with the waterproof table.

4. An automatic connector for long span overhead lines as claimed in claim 1, wherein: the limiting structure comprises a limiting column fixedly arranged on the first clamp and a limiting groove arranged on the second clamp, and the limiting column is slidably inserted into the limiting groove.

5. An automatic connector for long span overhead lines as claimed in claim 1, wherein: ​

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