Insulation piercing connector

Abstract

The application discloses an insulation piercing connector and relates to the technical field of cable connection, which comprises a clamping seat, a movable pressing plate, a power taking indicating lamp and a plurality of insulation piercing needles, wherein the insulation piercing needle comprises a piercing needle body and a piston push rod, the piercing needle body is installed in a second mounting hole and can move along the second mounting hole, a cable is placed at one end of the second mounting hole close to the movable pressing plate, a storage cavity is formed in the piercing needle body, a plurality of connecting channels are formed in the needle tip end of the piercing needle body, the plurality of connecting channels are communicated between the second mounting hole and the storage cavity, waterproof glue is stored in the storage cavity, the piston push rod is slidingly installed in the storage cavity, and the piston push rod is pushed after piercing power taking, so that the piston push rod extrudes the waterproof glue in the storage cavity into the gap between the second mounting hole and the piercing needle body, the waterproof glue can seal the surrounding of the piercing opening of the cable, the inner core of the cable is isolated from air and water, and good waterproof sealing and lubricating insulation functions are achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cable connection, and particularly relates to an insulation piercing connector. BACKGROUND

[0002] The piercing connector is mainly used for cable branch connection. When the cable branch connection is performed, the branch cable is inserted into the branch cap, the position of the main cable branch is determined, the torque nut on the connector is tightened by using a sleeve wrench, with the tightening of the torque nut, the upper and lower insulation bodies with the piercing blades are gradually closed, at the same time, the arc-shaped sealing rubber pad wrapped around the piercing blades is gradually in close contact with the cable insulation layer, and the piercing blades begin to pierce the cable insulation layer and the metal conductor. When the sealing degree of the sealing rubber pad and the insulation grease and the contact between the piercing blades and the metal body reach the optimal effect, the torque nut is automatically detached, and the installation is completed.

[0003] The piercing connector has the characteristics of simple installation, low cost, safety, reliability and maintenance-free. The main cable does not need to be cut off, and the insulation layer of the cable does not need to be stripped, so that the cable branch can be made, the connector is completely insulated, live working can be performed, and the branch can be made at any position of the cable. The terminal box and the branch box are not needed. The comprehensive benefits are obvious when the insulation piercing connector is used for cable branch, and the cost performance is better than that of the traditional cable branch connection mode.

[0004] However, the sealing rubber pad of the existing piercing connector is prone to loosening, the sealing effect is not good, and the functions and effects of good waterproof sealing and lubrication insulation cannot be achieved SUMMARY

[0005] In order to solve the above problems existing in the prior art, the application aims to provide an insulation piercing connector.

[0006] The technical scheme adopted by the application is an insulation piercing connector:

[0007] The insulation piercing connector comprises a clamping seat, a movable pressing plate, a power taking indicating lamp and a plurality of insulation piercing needles, the clamping seat is internally provided with a plurality of second installation holes, the plurality of insulation piercing needles are respectively installed in the plurality of second installation holes, the movable pressing plate is movably installed at the bottom of the clamping seat, and the movable pressing plate is used for pressing the cable to the clamping seat;

[0008] The insulation piercing needle comprises a piercing needle body and a piston push rod, the piercing needle body is installed in the second installation hole and can move along the second installation hole, a cable is placed at one end of the second installation hole close to the movable pressing plate, the piercing needle body is internally provided with a storage cavity, a plurality of connecting channels are formed at the needle tip end of the piercing needle body, the plurality of connecting channels are in communication with the second installation hole and the storage cavity, waterproof glue is stored in the storage cavity, and the piston push rod is slidably installed in the storage cavity and extrudes the waterproof glue into the second installation hole;

[0009] The power taking indicator lamp is installed on the clamping seat, and the power taking indicator lamp is electrically connected with the puncture needle body, the power taking indicator lamp is used for displaying the power taking state, and the puncture needle body takes power successfully, and the power taking indicator lamp is always bright.

[0010] As an option, the second mounting hole is provided with a fixing nut close to one end of the cable, and the puncture needle body is threadedly connected with the fixing nut.

[0011] As an option, a second torque nut is installed at one end of the puncture needle body away from the fixing nut, the second torque nut is located outside the second mounting hole, and the second torque nut is used for driving the puncture needle body to rotate.

[0012] As an option, a first mounting hole is formed in one side of the top of the clamping seat, and a lifting mechanism is installed in the first mounting hole, the lifting mechanism is used for driving the movable bottom plate to move.

[0013] As an option, the lifting mechanism comprises a lifting rod and a limiting piece, a mounting groove is formed in the bottom of the first mounting hole, one end of the lifting rod passes through the first mounting hole and is installed in the mounting groove, the limiting piece is fixedly installed at the top end of the mounting groove, the limiting piece is connected with the lifting rod, the limiting piece is used for limiting the axial movement of the lifting rod, and one end of the movable pressing plate is located in the mounting groove and is connected with the lifting rod.

[0014] As an option, an annular groove is formed in the middle position of the lifting rod in the axial direction, and the limiting piece is clamped in the annular groove of the lifting rod.

[0015] As an option, the movable pressing plate is threadedly connected with the bottom of the lifting rod.

[0016] As an option, a first torque nut is installed at one end of the lifting rod away from the mounting groove, and the first torque nut is used for driving the lifting rod to rotate.

[0017] As an option, a limiting rod is arranged on the piston push rod.

[0018] As an option, two second mounting holes are formed in the clamping seat.

[0019] The beneficial effects of the present application are as follows:

[0020] The application provides an insulation piercing clamp, characterized in that it comprises a clamping seat, a movable pressing plate, a power taking indicator lamp and a plurality of insulation piercing needles, a plurality of second mounting holes are formed in the clamping seat, the plurality of insulation piercing needles are respectively installed in the plurality of second mounting holes, the movable pressing plate is movably installed at the bottom of the clamping seat and is used for pressing a cable onto the clamping seat, the insulation piercing needle comprises a piercing needle body and a piston push rod, the piercing needle body is installed in the second mounting hole and is movable along the second mounting hole, a cable is placed at the end of the second mounting hole close to the movable pressing plate, a storage cavity is formed in the piercing needle body, a plurality of connecting channels are formed at the needle tip end of the piercing needle body, the plurality of connecting channels are in communication with the second mounting hole and the storage cavity, waterproof glue is stored in the storage cavity, the piston push rod is slidably installed in the storage cavity, and the piston push rod extrudes the waterproof glue into the second mounting hole, the power taking indicator lamp is installed on the clamping seat and is electrically connected with the piercing needle body, the power taking indicator lamp is used for displaying a power taking state, and the power taking indicator lamp is always on when the piercing needle body successfully takes power, when power is taken, the main line and the branch line of the cable are placed between the movable pressing plate and the clamping seat, the piercing needle body moves towards the cable, penetrates through the insulator wrapped outside the cable and leads out electric energy, then the piston push rod is pushed, so that the piston push rod extrudes the waterproof glue in the storage cavity into the gap between the second mounting hole and the piercing needle body, so that the waterproof glue can seal the surrounding of the piercing hole of the cable, thereby separating the inner core of the cable from air and water and achieving good waterproof sealing and lubricating insulation functions. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the isometric view of the application.

[0022] Figure 2 is the front view of the application.

[0023] Figure 3 is the top view of the application.

[0024] Figure 4 is the sectional view of A-A.

[0025] In the drawing: 1-clamping seat, 11-first mounting hole, 12-second mounting hole, 13-mounting groove, 2-lifting mechanism, 21-first torque nut, 22-lifting rod, 23-limiting sheet, 3-movable pressing plate, 4-insulation piercing needle, 41-second torque nut, 42-piercing needle body, 43-storage cavity, 44-piston push rod, 45-connecting channel, 46-fixing nut, 47-limiting rod, 5-cable, 6-power taking indicator lamp. DETAILED DESCRIPTION

[0026] Example one:

[0027] In this embodiment, as Figures 1-4As shown, an insulation piercing clamp includes a clamping seat 1, a movable pressing plate 3, a power taking indicator 6 and a plurality of insulation piercing needles 4. The clamping seat 1 is internally provided with a plurality of second mounting holes 12, and the plurality of insulation piercing needles 4 are respectively installed in the plurality of second mounting holes 12. The movable pressing plate 3 is movably installed at the bottom of the clamping seat 1 and is used to press a cable 5 onto the clamping seat 1. The insulation piercing needle 4 includes a piercing needle body 42 and a piston push rod 44. The piercing needle body 42 is installed in the second mounting hole 12 and is movable along the second mounting hole 12. The second mounting hole 12 is provided with the cable 5 at one end close to the movable pressing plate 3. The piercing needle body 42 is internally provided with a storage cavity 43. The piercing needle body 42 is provided with a plurality of connecting channels 45 at the needle tip end. The plurality of connecting channels 45 communicate the second mounting hole 12 and the storage cavity 43. Waterproof glue is stored in the storage cavity 43. The piston push rod 44 is slidably installed in the storage cavity 43 and extrudes the waterproof glue into the second mounting hole 12. The power taking indicator 6 is installed on the clamping seat 1 and is electrically connected with the piercing needle body 42. The power taking indicator 6 is used to display the power taking state. When the piercing needle body 42 successfully takes power, the power taking indicator 6 is always on. When taking power, the main line cable and the branch line cable are placed between the movable pressing plate 3 and the clamping seat 1. The piercing needle body 42 moves towards the cable 5, penetrates the insulation body wrapped outside the cable 5 and leads out the electric energy. Then, the piston push rod 44 is pushed to extrude the waterproof glue in the storage cavity 43 into the gap between the second mounting hole 12 and the piercing needle body 42. The waterproof glue can seal the piercing hole of the cable 5, so as to isolate the inner core of the cable 5 from air and water and achieve good waterproof sealing and lubricating insulation functions.

[0028] In the embodiment, specifically, the clamping seat 1 is internally provided with two second mounting holes 12. One insulation piercing needle 4 is arranged in each second mounting hole 12. Each second mounting hole 12 is provided with a concave groove at the bottom. In the embodiment, the movable pressing plate 3 and the clamping seat 1 are provided with two cables 5 to be connected. The movable pressing plate 3 presses the two cables 5 in the concave grooves at the bottom of the second mounting holes 12 respectively to prevent displacement of the cables 5 during piercing.

[0029] Embodiment two

[0030] The embodiment provides an alternative scheme for the installation mode of the insulation piercing needle 4 on the basis of the embodiment one.

[0031] In the embodiment, as shown in Figure 4As shown in the drawings, the second mounting hole 12 is provided with a fixing nut 46 near one end of the cable 5, the puncture needle body 42 is threadedly connected with the fixing nut 46, specifically, the puncture needle body 42 is provided with external threads, the second mounting hole 12 is provided with a placing groove matching the shape of the fixing nut 46 near one end of the cable, the fixing nut 46 is placed in the placing groove, and the placing groove and the fixing nut 46 are both hexagonal in shape, so that the puncture needle body 42 moves up and down in the second mounting hole 12 when the puncture needle body 42 rotates, because the fixing nut 46 is stationary and cannot rotate.

[0032] In this embodiment, as shown in the drawings, Figure 3 and Figure 4 , the second torque nut 41 is installed at one end of the puncture needle body 42 away from the fixing nut 46, the second torque nut 41 is located outside the second mounting hole 12, and the second torque nut 41 is used to drive the puncture needle body 42 to rotate. After the cable 5 is clamped, the operator rotates the second torque nut 41 to make the puncture needle body 42 move downward and penetrate the insulating outer skin of the cable 5, thereby completing the power taking. The second torque nut 41 is mainly used to facilitate the operation of the operator.

[0033] Embodiment three:

[0034] This embodiment provides an optional solution for the specific structure of the clamping seat 1 on the basis of any of the above embodiments.

[0035] In this embodiment, as shown in the drawings, Figure 2 and Figure 4 , the clamping seat 1 is in the shape of a factory, including a horizontally detachably connected part and a vertical part, the horizontally part of the clamping seat 1 is provided with a first mounting hole 11 and a plurality of second mounting holes 12 parallel to each other, that is, the horizontally part of the clamping seat 1 is provided with the first mounting hole 11 near one side of the vertical part, the first mounting hole 11 is installed with the lifting mechanism 2, and the lifting mechanism 2 is used to drive the movable bottom plate 3 to move.

[0036] Embodiment four:

[0037] This embodiment provides an optional solution for the specific structure of the lifting mechanism 2 on the basis of embodiment three.

[0038] In this embodiment, as shown in the drawings, Figure 4 , the lifting mechanism 2 includes a lifting rod 22 and a limiting piece 23, the first mounting hole 11 is provided with an installation groove 13 at the bottom, one end of the lifting rod 22 passes through the first mounting hole 11 and is installed in the installation groove 13, the limiting piece 23 is fixedly installed at the top end of the installation groove 13, the limiting piece 23 is connected with the lifting rod 22, the limiting piece 23 is used to limit the axial movement of the lifting rod 22, and one end of the movable bottom plate 3 is located in the installation groove 13 and connected with the lifting rod 22.

[0039] In the embodiment, specifically, a ring-shaped groove is formed in the middle position of the axial direction of the lifting rod 22, and the limiting piece 23 is clamped in the ring-shaped groove of the lifting rod 22, so that the lifting rod 22 can only rotate and cannot move axially.

[0040] In the embodiment, specifically, the movable pressing plate 3 is threadedly connected with the bottom of the lifting rod 22, and when the cable 5 is clamped, the lifting rod 22 is rotated, and since the lifting rod 22 is limited by the limiting piece 23 and cannot move axially, the movable pressing plate 3, which is installed at one end in the mounting groove 13 and is threadedly connected with the lifting rod 22, moves axially along the lifting rod 22, thereby realizing clamping of the cable 5.

[0041] In the embodiment, as shown in Figure 3 and Figure 4 , the first torque nut 21 is installed at the end of the lifting rod 22 away from the mounting groove 13, and the first torque nut 21 is used to drive the lifting rod 22 to rotate. When the cable 5 is clamped, the operator rotates the first torque nut 21 to move the movable pressing plate 3 to the clamping seat 1, so as to clamp the cable 5. The first torque nut 21 is mainly used to facilitate the operation of the operator.

[0042] Embodiment five:

[0043] The embodiment provides an optional solution for the specific structure of the piston push rod 44 on the basis of any of the above embodiments.

[0044] In the embodiment, as shown in Figure 1 , the limiting rod 47 is arranged on the piston push rod 44, and the limiting rod 47 is detachably connected to the piston push rod 44. The limiting rod 47 is used to prevent the piston push rod 44 from moving downward before puncture to extrude the waterproof glue in the storage cavity 43, effectively avoiding the situation that the waterproof glue in the storage cavity 43 is insufficient when the puncture port of the sealed cable 5 is sealed. When sealing, the limiting rod 47 is directly broken or detached to push the piston push rod 44 to extrude the waterproof glue.

[0045] Embodiment six:

[0046] The embodiment provides another optional solution for the specific structure of the clamping seat 1 on the basis of any of the above embodiments.

[0047] In the embodiment, specifically, three second mounting holes 12 are arranged in the clamping seat 1, and one insulating puncture needle 4 is arranged in each second mounting hole 12. The bottom of each second mounting hole 12 has a concave groove. In the embodiment, the movable pressing plate 3 and the clamping seat 1 are arranged with three cables 5 to be connected. The movable pressing plate 3 presses the three cables 5 in the concave grooves at the bottom of the second mounting holes 12, respectively, to prevent the cables 5 from moving during puncture.

[0048] The three cables 5 include one main cable and two branch cables, and the application can be used not only for the connection of two cables 5, but also for the connection of one main cable and multiple branch cables.

[0049] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction relationship 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.

[0050] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An insulating piercing clamp, characterized in that: It includes a clamping seat (1), a movable pressure plate (3), a power indicator light (6), and several insulating piercing needles (4). The clamping seat (1) has several second mounting holes (12) inside, and several insulating piercing needles (4) are respectively installed in several second mounting holes (12). The movable pressure plate (3) is movably installed at the bottom of the clamping seat (1). The movable pressure plate (3) is used to press the cable (5) onto the clamping seat (1). The clamping seat (1) has a first mounting hole (11) on one side of its top. A lifting mechanism (2) is installed in the first mounting hole (11). The lifting mechanism (2) is used to drive the movable pressure plate (3) to move. The insulating puncture needle (4) includes a puncture needle body (42) and a piston rod (44). The puncture needle body (42) is installed in the second mounting hole (12) and can move along the second mounting hole (12). A cable (5) is placed at one end of the second mounting hole (12) near the movable pressure plate (3). A storage cavity (43) is opened inside the puncture needle body (42). A plurality of connecting channels (45) are opened at the tip of the puncture needle body (42). The plurality of connecting channels (45) connect the second mounting hole (12) and the storage cavity (43). Waterproof glue is stored in the storage cavity (43). The piston rod (44) is slidably installed in the storage cavity (43). The piston rod (44) squeezes the waterproof glue into the second mounting hole (12). A limit rod (47) is provided on the piston push rod (44). The power indicator light (6) is installed on the clamping seat (1) and is electrically connected to the puncture needle body (42). The power indicator light (6) is used to display the power supply status. When the puncture needle body (42) is successfully powered, the power indicator light (6) is constantly lit.

2. The insulating piercing clamp according to claim 1, characterized in that, A fixing nut (46) is provided at one end of the second mounting hole (12) near the cable (5), and the puncture needle body (42) is threadedly connected to the fixing nut (46).

3. An insulating piercing clamp according to claim 2, characterized in that, A second torque nut (41) is installed at the end of the puncture needle body (42) away from the fixing nut (46). The second torque nut (41) is located outside the second mounting hole (12) and is used to drive the puncture needle body (42) to rotate.

4. An insulating piercing clamp according to claim 1, characterized in that, The lifting mechanism (2) includes a lifting rod (22) and a limiting piece (23). The bottom of the first mounting hole (11) is provided with a mounting groove (13). One end of the lifting rod (22) passes through the first mounting hole (11) and is installed in the mounting groove (13). The top of the mounting groove (13) is fixedly installed with a limiting piece (23). The limiting piece (23) is connected to the lifting rod (22). The limiting piece (23) is used to restrict the axial movement of the lifting rod (22). One end of the movable pressure plate (3) is located in the mounting groove (13) and is connected to the lifting rod (22).

5. An insulating piercing clamp according to claim 4, characterized in that, An annular groove is provided at the middle position of the lifting rod (22) in the axial direction, and the limiting piece (23) is engaged in the annular groove of the lifting rod (22).

6. An insulating piercing clamp according to claim 5, characterized in that, The movable pressure plate (3) is connected to the bottom of the lifting rod (22) by a thread.

7. An insulating piercing clamp according to claim 6, characterized in that, The lifting rod (22) is equipped with a first torque nut (21) at the end away from the mounting groove (13). The first torque nut (21) is used to drive the lifting rod (22) to rotate.

8. An insulating piercing clamp according to claim 1, characterized in that, The clamping base (1) has two second mounting holes (12).

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