Wire quick-connection isolating switch

Abstract

The utility model provides a lead quick-connection isolating switch, which comprises a first insulating support column, a second insulating support column and knife boards arranged on the first insulating support column and the second insulating support column, and quick-connection plates are arranged on the side parts of the first insulating support column and the second insulating support column. A connecting hole for a wire to penetrate through is formed in one side, back on to the first insulation supporting column or the second insulation supporting column, of the quick connecting plate, a wire clamping device used for clamping the wire is arranged in the connecting hole, quick connection of the wire can be achieved through the disconnecting switch, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disconnecting switches, and particularly relates to a quick-connection disconnecting switch for wires. Background Art

[0002] A disconnecting switch is a switch device mainly used for "isolating power sources, performing switching operations, and connecting and disconnecting small-current circuits". When the disconnecting switch is in the off position, there is an insulating distance that meets the specified requirements and an obvious disconnection mark between the contacts; when in the on position, it can carry the current under normal circuit conditions and the current under abnormal conditions (such as short circuit) within a specified time.

[0003] The disconnecting switch consists of a first insulating pillar, a second insulating pillar, and a knife plate arranged between the first insulating pillar and the second insulating pillar and capable of opening and closing. There are connection plates for connecting wires on both sides of the knife plate. In the prior art, a connection terminal is first connected to the side of the connection plate, the wire is inserted into the connection terminal, and then the connection terminal and the connection plate are connected by screws. Such a connection method is very cumbersome, resulting in low installation efficiency. Summary of the Utility Model

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the connection process between the wire and the connection plate in the prior art is very cumbersome, so as to provide a disconnecting switch capable of realizing quick connection of wires.

[0005] To this end, the utility model provides a quick-connection disconnecting switch for wires, including a first insulating pillar, a second insulating pillar, and a knife plate arranged on the first insulating pillar and the second insulating pillar. Quick-connection plates are arranged on the sides of the first insulating pillar and the second insulating pillar. A connection hole for the wire to penetrate is arranged on the side of the quick-connection plate facing away from the first insulating pillar or the second insulating pillar, and a wire clamping device for clamping the wire is arranged in the connection hole.

[0006] Further: The quick-connection plate includes a connection part connected to the first insulating pillar or the second insulating pillar and a wire installation part connected to the wire, and the connection hole is opened in the wire installation part.

[0007] Further: The wire clamping device includes an adjusting plate and a wire abutting member threadedly arranged on the side wall of the wire installation part. The wire abutting member can be screwed into the side close to the adjusting plate and abuts against the wire.

[0008] Further: A plurality of uniformly distributed extension bars are arranged on the adjusting plate, and the plurality of extension bars are arranged in a corrugated structure.

[0009] Further: The wire contact member includes an adjusting bolt threadedly connected to the side wall of the wire mounting portion and a contact block disposed below the adjusting bolt for contacting the wire. The adjusting bolt includes a bolt body and a fastening hexagon head disposed above the bolt body. There is an extension rod between the bolt body and the contact block, and a groove is provided at the middle position of the contact block.

[0010] Further: A sealing cover for guiding the insertion of the wire is provided at the entrance of the connection hole, and a cover plate for wrapping the adjusting bolt is provided above the wire mounting portion.

[0011] Further: Support members are sleeved at the connection portions of the knife plate and the quick-connection plate. An insulating protective cover made of silicone rubber material is provided outside the knife plate and the support members. The knife plate includes an upper connection plate arranged in a "T" shape and a lower connection plate vertically arranged below the upper connection plate. The support member wraps the connection portion of the knife plate and the quick-connection plate, and the insulating protective cover wraps the outside of the support member.

[0012] Further: The knife plate has a tripped state and a closed state. A buckling component for controlling the closing or opening of the knife plate is provided at the connection portion of the knife plate and the quick-connection plate. The buckling component includes a lock provided on one side of the circuit board or the knife plate, and a buckle provided on the other side and adapted to the lock. A pull ring is provided above the buckle. When the knife plate is in the closed state, the buckle is clamped inside the lock.

[0013] Further: The pull ring includes an unlocking end arranged in a ring shape and a contact end abutting against the insulating protective cover. An activity cavity for the buckle to swing is provided between the unlocking end and the contact end.

[0014] Further: Barbs are provided on the buckle, a card slot for the barbs to be inserted into is provided in the lock, and a guiding inclined surface for guiding the barbs into the card slot is provided above the lock.

[0015] The technical solution of the present utility model has the following advantages:

[0016] 1. A wire quick-connection disconnecting switch provided by the present utility model, compared with the prior art, the wire can be directly connected to the quick-connection plate, omitting the part of the terminal block. This not only saves costs, but also increases the wiring speed of the wire and improves the installation efficiency of the wire. When connecting the wire, only need to insert the wire into the connection hole, and then use the wire clamping device to fix the wire in the connection hole while fixing the wire to the quick-connection plate to complete the transmission of current.

[0017] 2. A quick-connection disconnecting switch for wires provided by the present utility model. The quick-connection plate includes a connection part and a wire installation part. The connection part is respectively connected to the first insulating pillar or the second insulating pillar, and the other end is for inserting a wire into the connection hole of the wire installation part. The quick-connection plate can directly replace the wiring board and the terminal in the prior art. When connecting, only need to directly insert the wire into the connection hole, and then use a wire clamping device to clamp the wire, thus completing the connection and fixation of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is the overall structural schematic diagram of the disconnecting switch;

[0020] Figure 2 is the enlarged partial structural diagram of the disconnecting switch;

[0021] Figure 3 is the cross-sectional structural schematic diagram of the disconnecting switch;

[0022] Figure 4 is Figure 3 the enlarged view of part A in

[0023] Figure 5 is the cross-sectional view of the side structure of the disconnecting switch;

[0024] Figure 6 is Figure 5 the enlarged view of part B in

[0025] Figure 7 is the internal structural schematic diagram of the disconnecting switch with the insulating protective cover removed.

[0026] Description of the reference numerals:

[0027] 1. First insulating support; 2. Second insulating support; 3. Knife plate; 31. Upper connecting plate; 32. Lower connecting plate; 4. Quick-connect plate; 41. Connecting part; 42. Wire installation part; 43. Connecting hole; 44. Sealing cover; 45. Cover plate; 5. Wire clamping device; 51. Adjusting plate; 52. Wire abutting member; 521. Adjusting bolt; 522. Abutting block; 53. Extension bar; 54. Bolt body; 55. Fastening hexagon head; 56. Groove; 57. Extension rod; 6. Support member; 7. Insulating protective cover; 8. Buckling component; 81. Lock; 82. Snap; 83. Pull ring; 831. Unlocking end; 832. Abutting end; 84. Activity cavity; 85. Barbs; 86. Card slot; 9. Guiding inclined plane. Detailed implementation manners

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In addition, the technical features involved in different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0032] Embodiment

[0033] This embodiment provides a quick-connect disconnect switch for wires, including a first insulating support 1, a second insulating support 2, and a knife plate 3 disposed on the first insulating support 1 and the second insulating support 2. Quick-connect plates 4 are provided on the sides of the first insulating support 1 and the second insulating support 2. On the side of the quick-connect plate 4 facing away from the first insulating support 1 or the second insulating support 2, there is a connection hole 43 for the wire to pass through, and a wire clamping device 5 for clamping the wire is provided in the connection hole 43.

[0034] The above specific improvement is as follows: As Figures 1-4 shown, when the current passes, it will first pass through the second insulating support 2, and then be conducted to the first insulating support 1 through the knife plate 3. In the prior art, a wiring board is connected to the first insulating support 1, and then a wiring terminal is connected to the wiring board. One end of the wiring terminal facing away from the wiring board has a structure for connecting with the wire. Compared with the prior art, the wire can be directly connected to the quick-connect plate 4, omitting the wiring terminal part, which not only saves costs but also increases the wiring speed of the wire and improves the installation efficiency of the wire. When connecting the wire, only need to insert the wire into the connection hole 43, and then use the wire clamping device 5 to fix the wire in the connection hole 43 while fixing the wire to the quick-connect plate 4 to complete the transmission of the current.

[0035] Based on the above embodiment: The quick-connect plate 4 includes a connection part 41 connected to the first insulating support 1 or the second insulating support 2 and a wire installation part 42 connected to the wire, and the connection hole 43 is opened in the wire installation part 42.

[0036] The above specific improvement is as follows: As Figure 4 shown, the quick-connect plate 4 includes a connection part 41 and a wire installation part 42. The connection part 41 is respectively connected to the first insulating support 1 or the second insulating support 2, and the other end is for the wire to be inserted into the connection hole 43 of the wire installation part 42. The quick-connect plate 4 can directly replace the wiring board and the wiring terminal in the prior art. When connecting, only need to directly insert the wire into the connection hole 43, and then use the wire clamping device 5 to clamp the wire, then the connection and fixation of the wire are completed.

[0037] Based on the above embodiment: The wire clamping device 5 includes an adjusting plate 51 and a wire abutting member 52 threadedly arranged on the side wall of the wire installation part 42, and the wire abutting member 52 can be screwed towards the side close to the adjusting plate 51 and abut against the wire.

[0038] The above specific improvement is as follows: As Figures 3-6As shown in the figure, the wire clamping device 5 includes an adjusting plate 51 and a wire abutting member 52 disposed above the adjusting plate 51. When the wire is inserted, the wire will be located above the adjusting plate 51. After the wire is placed, the wire abutting member 52 is screwed to enable the wire abutting member 52 to squeeze downward from above the wire, so as to cooperate with the adjusting plate 51 to hold the wire and fix the wire inside the connection hole 43.

[0039] Based on the above embodiment: A plurality of evenly distributed extension strips 53 are provided on the adjusting plate 51, and the plurality of extension strips 53 are arranged in a corrugated structure.

[0040] The above specific improvement is as follows: As Figure 4 and Figure 6 shown in the figure, in order to increase the contact friction between the adjusting plate 51 and the wire, extension strips 53 are provided on the adjusting plate 51. When the wire is inserted into the connection hole 43 and located on the adjusting plate 51, part of the wire will fill the gaps between adjacent extension strips 53, thereby effectively increasing the contact area between the wire and the adjusting plate 51 and improving the contact friction between the two.

[0041] Based on the above embodiment: The wire abutting member 52 includes an adjusting bolt 521 threadedly connected to the side wall of the wire mounting portion 42 and an abutting block 522 disposed below the adjusting bolt 521 for abutting against the wire. The adjusting bolt 521 includes a bolt body 54 and a fastening hexagon head 55 disposed above the bolt body 54. There is an extension rod 57 between the bolt body 54 and the abutting block 522, and a groove 56 is provided at the middle position of the abutting block 522.

[0042] The above specific improvement is as follows: As Figure 4 and Figure 6 shown in the figure, the wire abutting member 52 includes an adjusting bolt 521 and an abutting block 522 disposed below the adjusting bolt 521. After the wire is located on the adjusting plate 51, the operator can manually rotate or use an external tool to rotate the adjusting bolt 521. The adjusting bolt 521 is divided into a bolt body 54 and a fastening hexagon head 55 disposed above the bolt body 54. A groove 56 is provided below the abutting block 522. During the screwing process, first, the connection between the extension rod 57 on the bolt body 54 and the abutting block 522 will break first, and then the extension rod 57 will be stuck in the groove 56. When a certain torque is reached between the fastening hexagon head 55 and the bolt body 54, the connection between the two will break first. After breaking, the bolt body 54 will no longer rotate. When it is necessary to remove the bolt body 54, an external tool can be used to clamp the upper part of the bolt body 54 and screw it out. After screwing out, the bolt body 54 is scrapped.

[0043] On the basis of the above embodiment: a sealing cover 44 for guiding the insertion of the wire is provided at the entrance of the connecting hole 43 , and a cover plate 45 for wrapping the adjusting bolt 521 is provided above the wire installation portion 42 .

[0044] The above specific improvements are: Figure 6 As shown, after the wire is inserted into the connecting hole 43, the sealing cover 44 is wrapped around the outside of the wire to protect the wire. In order to increase the contact friction between the wire and the sealing cover 44, a plurality of extension rings are provided on the inner side wall of the sealing cover 44. The extension rings abut against the wire, thereby effectively preventing the wire from falling out of the connecting hole 43. The setting of the cover plate 45 can effectively wrap the adjusting bolt 521 to prevent the adjusting bolt 521 from being exposed to the outside.

[0045] On the basis of the above embodiment: the connection between the blade plate 3 and the quick-connect plate 4 is sleeved with a support member 6, and the outside of the blade plate 3 and the support member 6 is provided with an insulating protective cover 7 made of silicone rubber material. The blade plate 3 includes an upper connecting plate 31 arranged in a "T" shape and a lower connecting plate 32 vertically arranged below the upper connecting plate 31. The support member 6 is wrapped around the connection between the blade plate 3 and the quick-connect plate 4, and the insulating protective cover 7 is wrapped around the outside of the support member 6.

[0046] The above specific improvements are: Figure 7As shown in the figure, an insulating protective cover 7 made of silicone rubber material is provided on the outer side of the knife plate 3. Since the silicone rubber material is relatively soft and its supporting force is not sufficient to support the knife plate 3, a support member 6 made of a hard material is provided between the knife plate 3, the first insulating pillar 1 and the second insulating pillar 2. The support member 6 can be made of materials such as epoxy resin or bulk molding compound. By sleeving the support member 6 between the knife plate 3, the first insulating pillar 1 and the second insulating pillar 2, the supporting strength between the knife plate 3, the first insulating pillar 1 and the second insulating pillar 2 can be increased. And through the setting of the insulating protective cover 7, the charged metal parts such as the knife plate 3 can be wrapped, avoiding that during the working process, due to birds, airborne objects, branches, etc. falling on the charged metal parts, resulting in the short circuit or failure of the disconnector. At the same time, it can also prevent the operator from directly contacting the charged part, greatly reducing the electric shock risk and improving the safety of the product. The insulating protective cover 7 and the first insulating pillar 1 and the second insulating pillar 2 can be formed separately or integrally injection molded. The state of integral injection molding is convenient for installation. In the case where the insulating protective cover 7 and the first insulating pillar 1 and the second insulating pillar 2 are formed separately, the insulating protective cover 7 can be adapted to different insulating pillars without the need to open multiple sets of molds, effectively saving costs. To meet the requirements of electrical conductivity, the knife plate 3 can be made of copper material. To enhance the strength of the knife plate 3 and prevent the deformation of the knife plate 3, the knife plate 3 is set into a "T" - shaped structure. Through the combined setting of the upper connecting plate 31 and the lower connecting plate 32, the anti - deformation ability of the knife plate 3 is increased, thereby reducing the deformation force generated by the knife plate 3 during use.

[0047] Based on the above - mentioned embodiment: The knife plate 3 has a switching - off state and a switching - on state. A buckling component 8 for controlling the closing or opening of the knife plate 3 is provided at the connection between the knife plate 3 and the quick - connection plate 4. The buckling component 8 includes a lock catch 81 provided on one side of the circuit board or the knife plate 3, and a buckle 82 provided on the other side and adapted to the lock catch 81. A pull ring 83 is provided above the buckle 82. When the knife plate 3 is in the switching - on state, the buckle 82 is clamped inside the lock catch 81.

[0048] The above - mentioned specific improvement is as follows: As Figure 1 and Figure 2 shown in the figure, in order to enable the knife plate 3 and the first insulating pillar 1 to maintain the switching - on state, a lock catch 81 is provided on the insulating protective cover 7 on the knife plate 3, and then a buckle 82 is provided on the insulating protective cover 7 outside the knife plate 3. During operation, generally, a live - line tool rod needs to pass through the pull ring 83 to drive the rotation of the knife plate 3. When closing is required, the knife plate 3 is driven to rotate towards the side close to the lock catch 81, so that the buckle 82 is inserted into the lock catch 81. When opening is required, an external tool is inserted into the pull ring 83 to drive the knife plate 3 to rotate towards the other side, so that the buckle 82 is separated from the lock catch 81 to achieve opening.

[0049] Based on the above embodiments: The pull ring 83 includes an unlocking end 831 arranged in an annular structure and a contact end 832 that abuts against the insulating protective cover 7. An activity cavity 84 for the swing of the buckle 82 is arranged between the unlocking end 831 and the contact end 832.

[0050] The above specific improvement is as follows: As Figure 3 and Figure 4 shown, the pull ring 83 includes an unlocking end 831 and a contact end 832. When closing the switch, the buckle 82 will rotate towards the side close to the lock catch 81. When the lower end surface of the contact end 832 abuts against the upper end surface of the insulating protective cover 7, the buckle 82 can still swing freely within the range of the activity cavity 84. Therefore, during the process of the buckle 82 being snapped into the lock catch 81, the buckle 82 can have a certain elastic buffer force, and it will not cause the buckle 82 to be hard pushed into the lock catch 81 due to the position of the buckle 82 being restricted, which better protects the buckle 82 and improves the service life of the buckle 82.

[0051] Based on the above embodiments: A barb 85 is arranged on the buckle 82, a clamping groove 86 for the barb 85 to be snapped into is arranged in the lock catch 81, and a guiding inclined surface 9 for guiding the barb 85 into the clamping groove 86 is arranged above the lock catch 81.

[0052] The above specific improvement is as follows: As Figure 4 described, through the arrangement of the barb 85 and the clamping groove 86, the knife plate 3 can be kept in the closed state, and through the arrangement of the guiding inclined surface 9, the barb 85 can be effectively guided into the clamping groove 86.

[0053] Obviously, the above embodiments are only examples clearly described and not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. A quick-connect disconnecting switch for a wire, characterized in that: It includes a first insulating pillar (1), a second insulating pillar (2), and a knife plate (3) arranged on the first insulating pillar (1) and the second insulating pillar (2). Quick-connect plates (4) are arranged on the sides of the first insulating pillar (1) and the second insulating pillar (2). A connection hole (43) for the wire to penetrate is arranged on the side of the quick-connect plate (4) facing away from the first insulating pillar (1) or the second insulating pillar (2). A wire clamping device (5) for clamping the wire is arranged in the connection hole (43).

2. The quick-connect disconnecting switch for a wire according to claim 1, wherein: The quick-connect plate (4) includes a connection part (41) connected to the first insulating pillar (1) or the second insulating pillar (2) and a wire installation part (42) connected to the wire. The connection hole (43) is opened in the wire installation part (42).

3. The quick-connect disconnecting switch for a wire according to claim 2, characterized in that: The wire clamping device (5) includes an adjusting plate (51) and a wire abutting member (52) threadedly arranged on the side wall of the wire installation part (42). The wire abutting member (52) can be screwed into the side close to the adjusting plate (51) and abuts against the wire.

4. The quick-connect disconnecting switch for a wire according to claim 3, characterized in that: A plurality of uniformly distributed extension bars (53) are arranged on the adjusting plate (51), and the plurality of extension bars (53) are arranged in a corrugated structure.

5. The quick-connect disconnecting switch for a wire according to claim 4, characterized in that: The wire abutting member (52) includes an adjusting bolt (521) threadedly connected to the side wall of the wire installation part (42) and an abutting block (522) arranged below the adjusting bolt (521) for abutting against the wire. The adjusting bolt (521) includes a bolt body (54) and a fastening hexagonal head (55) arranged above the bolt body (54). There is an extension rod (57) between the bolt body (54) and the abutting block (522). A groove (56) is arranged at the middle position of the abutting block (522).

6. The quick-connect disconnecting switch for a wire according to claim 5, characterized in that: A sealing cover (44) for guiding the wire to insert is arranged at the entrance of the connection hole (43). A cover plate (45) for wrapping the adjusting bolt (521) is arranged above the wire installation part (42).

7. A quick-connect disconnecting switch for a wire according to any one of claims 1-6, characterized in that: Support members (6) are sleeved at the connection parts between the knife plate (3) and the quick-connect plate (4). An insulating protective cover (7) made of silicone rubber material is arranged outside the knife plate (3) and the support members (6). The knife plate (3) includes an upper connection plate (31) arranged in a "T" shape and a lower connection plate (32) vertically arranged below the upper connection plate (31). The support members (6) wrap the connection parts between the knife plate (3) and the quick-connect plate (4), and the insulating protective cover (7) wraps outside the support members (6).

8. The quick-connect disconnecting switch for a wire according to claim 7, wherein: The knife plate (3) has a tripping state and a closing state. A buckling component (8) for controlling the closing or tripping of the knife plate (3) is arranged at the connection part between the knife plate (3) and the quick-connect plate (4). The buckling component (8) includes a lock catch (81) arranged on one side of the circuit board or the knife plate (3), and a buckle (82) arranged on the other side and adapted to the lock catch (81). A pull ring (83) is arranged above the buckle (82). When the knife plate (3) is in the closing state, the buckle (82) is clamped inside the lock catch (81).

9. The quick-connect disconnecting switch for a wire according to claim 8, characterized in that: The pull ring (83) includes an unlocking end (831) arranged in a circular structure and an abutting end (832) that abuts against the insulating protective cover (7). An activity cavity (84) for the swing of the buckle (82) is arranged between the unlocking end (831) and the abutting end (832).

10. A quick-connect disconnecting switch for a wire according to claim 9, characterized in that: A barb (85) is arranged on the buckle (82), a clamping groove (86) for the barb (85) to be inserted into is arranged in the lock catch (81), and a guiding inclined surface (9) for guiding the barb (85) into the clamping groove (86) is arranged above the lock catch (81).

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