A universal switching device for high and low voltage lines

Abstract

The present invention proposes a universal switching device for high and low voltage lines, which relates to the technical field of conductive connection of lines, including a shell with a semi-enclosed structure, a connecting mechanism that penetrates into the shell and is used to connect a secondary cable to electricity is arranged at the top of the shell, and two arc-shaped metal connecting plates are rotatably installed on the inner side of the shell, and the two metal connecting plates can be flipped in the outer shell to form a clamping space for wrapping the main cable with the connecting mechanism located in the shell; the present invention can quickly switch the main cable, reduce the time required for cable switching, and improve installation efficiency. The present invention can also realize the connection of sheathed cables and unsheathed cables through a needle mechanism, which is suitable for the connection of different cables and improves applicability.

Description

Technical Field

[0001] The invention relates to the technical field of line conductive connection, and in particular to a universal switching device for high and low voltage lines. Background Art

[0002] In the circuit, a conductive medium is needed to conduct and transport electricity. In the cable line, there are two transmission modes, high voltage and low voltage. Generally, the corresponding transmission cables are different. In the existing cable conduction, the conduction of electricity actually includes sheathed cables and pure metal cables. Sheathed cables are generally used underground or on poles with a height of less than 15 meters, and pure metal cables are generally used in the conduction direction of high-voltage lines. On the high-voltage line, the high-voltage line will be transposed to solve the transposition balance of the three-phase conductive impedance, and the low-voltage line will be connected to the power through an external line. When switching the low-voltage line and the high-voltage line, different connection devices are required for connection. The required linking device cannot be used for the connection of the two lines. At the same time, the connecting equipment needs to be fixed to the cable with bolts before it can be used, which consumes a lot of installation time and causes inconvenience in use. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a universal switching device for high and low voltage lines to solve the problem of inconvenience in using a cable connecting device.

[0004] Based on the technical problems existing in the background technology, the present invention proposes a universal switching device for high and low voltage lines, including a shell with a semi-enclosed structure, a connecting mechanism penetrating into the shell for connecting a secondary cable to electricity is arranged on the top of the shell, and two arc-shaped metal connecting plates are rotatably installed on the inside of the shell. The two metal connecting plates can be flipped in the outer shell and form a clamping space for wrapping the main cable with the connecting mechanism located in the shell.

[0005] Preferably, the connection mechanism comprises a clamping tube for clamping the auxiliary cable and a connection box located in the housing, the clamping tube is a tube body with an opening, and the clamping tube and the connection box are connected by conductive metal.

[0006] Preferably, the connecting box is provided with a conductive plate which can slide toward the main cable, a needle is connected to the side of the conductive plate facing the main cable, a first elastic member is provided on the side of the conductive plate away from the main cable, two ends of the first elastic member respectively abut the conductive plate and the connecting box, the conductive plate accumulates force through a trigger mechanism, and the trigger mechanism can control the needle to shoot toward the main cable to pierce the main cable.

[0007] Preferably, the trigger mechanism includes a box body, in which a locking plate is slidably installed along the conduction direction of the main cable, a first tooth key is provided on the side of the locking plate facing the conductive plate, and a second tooth key is provided on the side of the conductive plate facing the locking plate, the first tooth key is located on the side of the second tooth key facing the main cable, and the locking plate slides horizontally to cause the second tooth key to slide out of the gap of the first tooth key and pierce the main cable.

[0008] Preferably, a guide shaft is provided in the box body, the guide shaft passes through the locking plate, the guide shaft sleeve is provided with a second elastic member, the two ends of the second elastic member respectively abut one end of the locking plate and the box body, and a pressing cover is slidably installed at the end of the guide shaft away from the second elastic member, and the pressing cover passes from inside the box body to outside the box body.

[0009] Preferably, a bracket is provided in the shell, the middle part of the outer side surface of the metal connecting piece is rotatably connected to the end of the bracket, the outer side surface of the metal connecting piece is provided with a guide rail whose axis is parallel to the axis of the metal connecting piece, a slider is annularly sliding in the guide rail, a connecting block is provided in the shell between the connecting box and the bracket, and the connecting block and the slider are connected by a tension spring.

[0010] Preferably, two ends of the guide rail are respectively located on both sides of a connection point between the metal connecting piece and the bracket.

[0011] Preferably, the housing is provided with a guide groove for installing the connection block, and the connection block can slide in the guide groove to change its position on the housing.

[0012] Compared with the prior art, the universal switching device for high and low voltage lines proposed by the present invention adopts the above technical solution and achieves the following technical effects:

[0013] The present invention can quickly switch the main cable, reduce the time required for cable switching, and improve installation efficiency. The present invention can also achieve the connection between the sheathed cable and the unsheathed cable through the needle mechanism, which is suitable for the connection of different cables and improves applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 The internal structure of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 3 The internal structure of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 4 It is a schematic diagram of the metal connecting sheet of the present invention;

[0018] Figure 5 This is a schematic diagram of the closing of the metal connecting piece of the present invention;

[0019] Figure 6 It is a schematic diagram of the connection mechanism of the present invention;

[0020] Figure 7 It is a schematic diagram of the interior of the box body of the present invention;

[0021] Figure 8It is a schematic side view of the box body of the present invention.

[0022] In the figure: 1, shell; 200, auxiliary cable; 2, connecting mechanism; 3, metal connecting plate; 100, main cable; 21, clamping tube; 22, connecting box; 23, trigger mechanism; 221, conductive plate; 222, needle; 223, first elastic member; 231, box body; 232, locking plate; 2321, first tooth key; 2211, second tooth key; 233, guide shaft; 234, second elastic member; 235, pressing cover; 11, bracket; 31, guide rail; 32, slider; 12, connecting block; 13, tension spring; 14, guide groove. DETAILED DESCRIPTION

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature. Example

[0025] Please refer to Figures 1 to 8 The present invention proposes a universal switching device for high and low voltage lines, including a shell 1 with a semi-enclosed structure. A connecting mechanism 2 is provided on the top of the shell 1 and penetrates into the shell 1 for connecting a secondary cable 200. The connecting mechanism 2 can penetrate the inside and outside of the shell 1 for conducting electricity. The part of the connecting mechanism 2 located outside the shell 1 is connected to the secondary cable 200 for external conduction. Two arc-shaped metal connecting pieces 3 are rotatably installed on the inner side of the shell 1. The two metal connecting pieces 3 can be turned over in the outer shell to form a clamping space that wraps the main cable 100 with the connecting mechanism 2 located in the shell 1. When the main cable 100 is clamped in the clamping space, it contacts the connecting mechanism 2 located in the shell 1 to achieve conduction between the main cable 100 and the secondary cable 200.

[0026] In the above solution, the housing 1 is made of insulating material, and the connecting piece and the connecting mechanism 2 are made of conductive metal material.

[0027] In a further embodiment, reference is made to Figure 1 to Figure 2 An opening is provided on one side of the shell 1 away from the auxiliary cable 200, and a cover body that can close the opening is rotatably installed on the shell 1. Limiting grooves are provided on both sides of the shell 1, and a protective cover is slidably installed between the limiting grooves. The cover body and the shell 1 can protect the part outside the shell 1, while preventing accidental touch by personnel, thereby improving safety.

[0028] In a specific embodiment, refer to Figure 1 to Figure 2 The connection mechanism 2 includes a clamping tube 21 for clamping the auxiliary cable 200 and a connection box 22 located in the housing 1. The clamping tube 21 is a tube body with an opening. The clamping tube 21 and the connection box 22 are connected by conductive metal.

[0029] In the above solution, the clamping tube 21 and the connection box 22 are both made of conductive metal.

[0030] In a further embodiment, reference is made to Figure 2 The clamping tube 21 can be deformed, and the auxiliary cable 200 can be directly inserted through the opening of the clamping tube 21, or inserted from both ends of the clamping tube 21 for fixation. In order to make the connection of the auxiliary cable 200 more stable, screw holes are provided on both sides of the opening of the clamping tube 21. When the auxiliary cable 200 is placed into the clamping tube 21, the opening of the clamping tube 21 can be locked by a metal bolt to fix the auxiliary cable 200.

[0031] In a specific embodiment, refer to Figures 6 to 8 The connecting box 22 is provided with a conductive plate 221 which can slide toward the main cable 100, and a needle 222 is connected to the side of the conductive plate 221 facing the main cable 100, and a first elastic member 223 is provided on the side of the conductive plate 221 away from the main cable 100, and both ends of the first elastic member 223 respectively contact the conductive plate 221 and the connecting box 22, and the conductive plate 221 accumulates power through the trigger mechanism 23, and the trigger mechanism 23 can control the needle to shoot toward the main cable 100 to pierce the main cable 100.

[0032] In the above solution, the conductive plate 221 , the needle 222 , and the first elastic member 223 are all made of conductive metal.

[0033] In further implementation, Figures 6 to 8 When the main cable 100 has no outer skin, the main cable 100 can be directly connected. When the main cable 100 has an outer skin, the main cable 100 is clamped in the clamping space, and the conductive plate 221 is launched through the trigger mechanism 23, so that the needle 222 connected to the conductive plate 221 penetrates the outer skin of the main cable 100 to conduct electricity.

[0034] In a specific embodiment, refer to Figures 6 to 8 The trigger mechanism 23 includes a box body 231, in which a locking plate 232 is slidably installed along the conduction direction of the main cable 100. A first tooth key 2321 is provided on the side of the locking plate 232 facing the conductive plate 221, and a second tooth key 2211 is provided on the side of the conductive plate 221 facing the locking plate 232. The first tooth key 2321 is located on the side of the second tooth key 2211 facing the main cable 100. The locking plate 232 slides horizontally to make the second tooth key 2211 slide out of the gap of the first tooth key 2321 and pierce the main cable 100.

[0035] In the above scheme, the locking plate 232 can slide horizontally in the box body 231. When the locking plate 232 moves horizontally, the second tooth key 2211 of the conductive plate 221 will slide out from the gap of the first tooth key 2321. The first elastic member 223 is always in a compressed state. Then, the first elastic member 223 will push the conductive plate 221 to move toward the main cable 100, and conduct electricity by piercing the outer skin of the main cable 100 through the needle. The conductive plate 221 is always in contact with the connection box 22 in the connection box 22.

[0036] In a further embodiment, Figures 6 to 8 After the needle has been triggered, the conductive plate 221 will be located below the locking plate 232, and the second tooth key 2211 and the first tooth key 2321 are adjacent to each other and the corners at the diagonal angle are arc surfaces or inclined surfaces. When the conductive plate 221 needs to restore the power storage state, the conductive plate 221 can be directly pressed to move toward the auxiliary cable 200, and the first tooth key 2321 and the second tooth key 2211 can be squeezed and misaligned by the inclined surface or arc surface, and the locking plate 232 is squeezed to translate. When the locking plate 232 is above the conductive plate 221, the locking plate 232 can be translated again so that the first tooth key 2321 is located directly above the second tooth key 2211 for locking, thereby realizing the power storage state of the conductive plate 221.

[0037] In a specific embodiment, refer to Figure 7 A guide shaft 233 is provided in the box body 231, and the guide shaft 233 passes through the locking plate 232. The guide shaft 233 is sleeved with a second elastic member 234. The two ends of the second elastic member 234 respectively abut one end of the locking plate 232 and the box body 231. A pressing cover 235 is slidably installed on the end of the guide shaft 233 away from the second elastic member 234, and the pressing cover 235 passes from the inside of the box body 231 to the outside of the box body 231.

[0038] In the above scheme, the movement of the locking plate 232 requires human control to restore the state. In the present scheme, when the locking plate 232 is squeezed and translated, the second elastic member 234 will be squeezed. When the first tooth key 2321 is located above the second tooth key 2211, the second elastic member 234 will release its elasticity and push the locking plate 232 to translate in the opposite direction, thereby achieving a quick locking effect. Furthermore, when the inclined surface or arc surface set by the first tooth key 2321 and the second tooth key 2211 are squeezed, the locking plate 232 must be squeezed in the direction of the second elastic member 234.

[0039] In a further embodiment, the trigger mechanism 23 is installed on both sides of the connection box 22, which can prevent the conductive plate 221 from tilting in the power storage state and prevent the conductive plate 221 from being fired due to accidental touch.

[0040] In a specific embodiment, refer to Figure 3 A bracket 11 is provided in the shell 1, the middle part of the outer side surface of the metal connecting piece 3 is rotatably connected to the end of the bracket 11, a guide rail 31 whose axis is parallel to the axis of the metal connecting piece 3 is provided on the outer side surface of the metal connecting piece 3, and a slider 32 is annularly slidable in the guide rail 31, a connecting block 12 is provided between the connecting box 22 and the bracket 11 in the shell 1, the connecting block 12 and the slider 32 are connected by a tension spring 13, and the two ends of the guide rail 31 are respectively located on both sides of the connection point between the metal connecting piece 3 and the bracket 11.

[0041] In the above scheme, when the two metal connecting pieces 3 are in the expanded state, the slider 32 will be located at the end of the guide rail 31 away from the secondary cable 200. At this time, the tension spring 13 pulls the metal connecting piece 3 away from the side of the secondary cable 200, so that the metal connecting piece 3 remains in the expanded state. When installing the main cable 100, the main cable 100 is squeezed between the two metal connecting pieces 3. The main cable 100 will squeeze the metal connecting piece 3 close to the side of the secondary cable 200, and the tension spring 13 will be in a stretched state. Continuing to squeeze the main cable 100 will cause the metal connecting piece 3 to flip over. At this time, the slider 32 will slide from the end of the guide rail 31 away from the secondary cable 200 to the end close to the secondary cable 200 under the action of the tension spring 13. After the metal connecting piece 3 is completely flipped over, the tension spring 13 will be in the shortest state, but it will always have tension. The cable will be limited by the tension spring 13 when pulling and squeezing the metal connecting piece 3 outward, thereby achieving a quick installation effect.

[0042] In a specific embodiment, refer to Figures 2 to 3 The housing 1 is provided with a guide groove 14 for installing the connecting block 12 , and the connecting block 12 can slide in the guide groove 14 to change its position on the housing 1 .

[0043] In the above solution, the connecting block 12 is locked on the guide groove 14. The tension of the tension spring 13 on the metal connecting piece 3 can be adjusted by adjusting the position of the connecting block 12 on the guide groove 14, so as to control the tension of the metal connecting piece 3 on the main cable 100.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A universal switching device for high and low voltage lines, characterized in that: The invention comprises a shell (1) with a semi-enclosed structure, wherein a connection mechanism (2) is provided at the top end of the shell (1) and penetrates into the shell (1) for connecting an auxiliary cable (200) to electricity, and two arc-shaped metal connection plates (3) are rotatably installed inside the shell (1), and the two metal connection plates (3) can be turned inside the shell to form a clamping space for wrapping the main cable (100) with the connection mechanism (2) located inside the shell (1); the connection mechanism (2) comprises a clamping tube (21) for clamping the auxiliary cable (200) and a connection box (22) located inside the shell (1), wherein the clamping tube (21) is a tube body with an opening, and the clamping tube (21) is a tube body with an opening. (21) is connected to the connection box (22) through conductive metal; the connection box (22) is provided with a conductive plate (221) that can slide toward the main cable (100); a side of the conductive plate (221) facing the main cable (100) is connected with a needle (222); a side of the conductive plate (221) away from the main cable (100) is provided with a first elastic member (223); two ends of the first elastic member (223) respectively abut against the conductive plate (221) and the connection box (22); the conductive plate (221) accumulates force through a trigger mechanism (23), and the trigger mechanism (23) can control the needle (222) to slide toward the main cable (100). The cable (100) is fired to pierce the main cable (100); the trigger mechanism (23) comprises a box body (231), a locking plate (232) is slidably installed in the box body (231) along the conduction direction of the main cable (100), a first tooth key (2321) is arranged on the side of the locking plate (232) facing the conductive plate (221), a second tooth key (2211) is arranged on the side of the conductive plate (221) facing the locking plate (232), the first tooth key (2321) is located on the side of the second tooth key (2211) facing the main cable (100), and the locking plate (232) slides horizontally to make the second tooth key (2211) The key (2211) slides out from the gap of the first tooth key (2321) and pierces the main cable (100); a guide shaft (233) is arranged in the box body (231), the guide shaft (233) passes through the locking plate (232), the guide shaft (233) is sleeved with a second elastic member (234), two ends of the second elastic member (234) respectively abut against one end of the locking plate (232) and the box body (231), and a pressing cover (235) is slidably installed at one end of the guide shaft (233) away from the second elastic member (234), and the pressing cover (235) passes from the inside of the box body (231) to the outside of the box body (231).

2. The high and low voltage line universal switching device according to claim 1 is characterized in that: A bracket (11) is arranged in the housing (1); the middle part of the outer side surface of the metal connecting piece (3) is rotatably connected to the end of the bracket (11); a guide rail (31) whose axis is parallel to the axis of the metal connecting piece (3) is arranged on the outer side surface of the metal connecting piece (3); a slider (32) is annularly slidable in the guide rail (31); a connecting block (12) is arranged between the connecting box (22) and the bracket (11) in the housing (1); and the connecting block (12) and the slider (32) are connected via a tension spring (13).

3. The high and low voltage line universal switching device according to claim 2 is characterized in that: The two ends of the guide rail (31) are respectively located on both sides of the connection point between the metal connecting piece (3) and the bracket (11).

4. The high and low voltage line universal switching device according to claim 2 is characterized in that: The housing (1) is provided with a guide groove (14) for mounting the connection block (12), and the connection block (12) can slide in the guide groove (14) to change its position on the housing (1).

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