阅读说明：本技术 一种绝缘穿刺线夹 (Insulating puncture fastener ) 是由 舒能文 陈刚 顾卫华 龚书能 高原 王建城 曹志勇 沈战峰 黄建伟 钱若晨 杨振 于 2020-11-20 设计创作，主要内容包括：本发明公开了一种绝缘穿刺线夹,为了解决绝缘硅脂涂抹易不均匀,无法起到良好的防水密封及润滑绝缘等功能效果的问题,包括上夹块和下夹块,下夹块与上夹块通过固定机构连接,上夹块与下夹块固定连接时形成两个用于夹持电缆的夹线槽,上夹块和下夹块中均内置刺片槽,刺片槽中设有若干刺片,刺片两侧均设有若干绝缘装置,绝缘装置位于上夹块和/或下夹块中,绝缘装置包括一端开口的滑槽、位于滑槽底部的内置腔和挤压机构,挤压机构位于滑槽开口端且与内置腔接触,内置腔中设有绝缘脂腔。本发明的有益效果是：通过挤压机构、绝缘脂腔中的绝缘脂,可以较为均匀的将绝缘硅脂涂抹在刺片上,并能起到良好的防水密封及润滑绝缘效果。(The invention discloses an insulating puncture wire clamp, which aims to solve the problems that insulating silicone grease is easy to smear unevenly and cannot achieve good waterproof sealing, lubricating insulation and other functional effects. The invention has the beneficial effects that: through the extrusion mechanism and the insulating grease in the insulating grease cavity, the insulating silicone grease can be uniformly coated on the barbed sheet, and good waterproof sealing, lubricating and insulating effects can be achieved.)

1. An insulation puncture wire clamp comprises an upper clamping block (1) and a lower clamping block (5), wherein the lower clamping block is connected with the upper clamping block through a fixing mechanism, and is characterized in that the upper clamping block is fixedly connected with the lower clamping block to form two wire clamping grooves (3) used for clamping a cable, a plurality of thorn sheets (4) are arranged in the thorn sheet grooves, a plurality of insulation devices are arranged on two sides of the thorn sheets and are located in the upper clamping block and/or the lower clamping block, each insulation device comprises a sliding groove (14) with an opening end, a built-in cavity (15) and an extrusion mechanism (16), the extrusion mechanism is located at the opening end of the sliding groove and is in contact with the built-in cavity, and an insulation grease cavity (19) is arranged in the built-in cavity.

2. The insulation piercing connector as claimed in claim 1, wherein the extruding mechanism (16) comprises a piercing head (161) contacting the built-in cavity (15), a plurality of flow guiding channels (162) and an extruding body (163) which are communicated with each other, the piercing head is fixedly connected with the upper end of the extruding body, one end of each of the flow guiding channels is opened on the piercing head, and the other end of each of the flow guiding channels is opened on the extruding body.

3. An insulation piercing connector as claimed in claim 1, characterized in that a buffer layer (13) is provided on the piercing tab slot, the buffer layer is connected with the piercing tab slot through a spring (12), the buffer layer is provided with a plurality of through slots (17), the tip of the piercing tab (4) passes through the through slots, and the lower end of the pressing mechanism (16) is in contact with the buffer layer.

4. The insulation piercing connector as claimed in claim 2 or 3, wherein the extrusion body (163) comprises an upper transverse plate, a vertical rod and a lower transverse plate which are integrally formed and connected in sequence, the piercing head (161) is arranged on the upper surface of the upper transverse plate, the upper transverse plate is arranged in the chute (14) and attached to the inner wall of the chute, the lower surface of the lower transverse plate is in contact with the buffer layer (13), and a plurality of openings at the other end of the flow guide channel (162) are formed in the vertical rod.

5. An insulation piercing connector as claimed in claim 4, characterized in that a plurality of resilient projections (18) are provided at the opening of the runner (14) for securing the pressing means (16).

6. An insulation piercing connector as claimed in claim 1, characterized in that the fixing mechanism comprises a stud (6) and a torque nut (2), a through hole (7) is provided on the upper clamping block (1), the stud passes through the through hole and is connected with the torque nut, a sleeve (10) is provided on the lower clamping block (5) and is matched with the through hole, and the sleeve is provided with an internal thread matched with the stud.

7. An insulation piercing connector as claimed in claim 6, characterized in that the upper clamping block (1) is provided with a slot (9) on both sides, and the lower clamping block is provided with a frame (11) on both sides which can be inserted into the slot.

8. An insulation piercing connector as claimed in claim 6, characterized in that clamping plates (8) for limiting the lower clamping block (5) are provided on both sides of the upper clamping block (1).

9. An insulation piercing connector as claimed in claim 5, characterized in that the piercing elements (4) in the upper block (1) and the piercing elements (4) in the lower block (5) correspond one to one.

10. An insulating piercing connector as claimed in claim 7, 8 or 9, characterized in that the bottom of the lower block (5) is provided with a second locking groove (20).

Technical Field

The invention relates to an electric power fitting, in particular to an insulating piercing connector.

Background

An Insulation Piercing connector (Insulation Piercing Connectors) mainly comprises an Insulation shell, a Piercing blade, a waterproof rubber pad and a torque bolt. When the cable branches are connected, the branch cable is inserted into the branch cap, the main line branch position is determined, the torque nut on the cable clamp is screwed by the socket wrench, the upper and lower insulators hidden with the puncture blade of the cable clamp are gradually folded along with the screwing of the torque nut, meanwhile, the arc-shaped sealing rubber gasket wrapped around the puncture blade is gradually attached to the cable insulation layer, and the puncture blade also starts to puncture the cable insulation layer and the metal conductor. When the sealing degree of the sealing rubber gasket and the insulating grease and the contact between the puncture blade and the metal body reach the optimal effect, the torque nut automatically falls off, and at the moment, the installation is completed, and the sealing effect and the electrical effect of the contact point reach the optimal effect.

The insulating silicone grease in the shell of the existing insulating puncture wire clamp is easy to smear unevenly, the smearing amount is small, and the good waterproof sealing, lubricating and insulating functions and effects cannot be achieved.

The utility model provides a "insulating puncture fastener of security height" that discloses on chinese patent literature, its publication CN109546362A, including top board and holding down plate, be connected through fastener between top board and the holding down plate, form two wire clamping grooves that are used for centre gripping cable when top board and holding down plate are connected and are foldd, all be provided with thorn piece groove in top board and the holding down plate, be provided with thorn piece in the thorn piece groove, the both sides of thorn piece all are provided with the coating cream device that is located top board or holding down plate, the coating cream device is including setting up the built-in chamber in top board or holding down plate, be provided with the cream storage sleeve that is hollow form in the built-in chamber, the below sliding connection of cream storage sleeve inner wall has the bottom plate of fixing on the wall of built-in chamber, form the silicone grease chamber that is used for storing insulating silicone grease between the upper surface of bottom plate and the cream storage sleeve's inner wall. . The disadvantages are as follows: the silicone grease is not sealed and may leak during storage.

Disclosure of Invention

The invention mainly aims to solve the problems that the insulating silicone grease is easy to smear unevenly, the smearing amount is small, and the good waterproof sealing, lubricating and insulating functions and other functions cannot be achieved.

In order to achieve the purpose, the invention adopts the following technical scheme:

an insulating puncture wire clamp comprises an upper clamping block and a lower clamping block, wherein the lower clamping block is connected with the upper clamping block through a fixing mechanism, the upper clamping block is fixedly connected with the lower clamping block to form two wire clamping grooves used for clamping cables, a plurality of thorn sheets are arranged in the thorn sheet grooves, a plurality of insulating devices are arranged on two sides of the thorn sheets, the insulating devices are located in the upper clamping block and/or the lower clamping block, each insulating device comprises a sliding groove with an opening end, a built-in cavity and an extrusion mechanism, the sliding groove is located at the bottom of the sliding groove, the extrusion mechanism is located at the opening end of the sliding groove and is in contact with the built-in cavity, and an insulating grease cavity is arranged in the built-in cavity.

The lower clamping block and the upper clamping block are respectively provided with a plurality of pairs of pairwise symmetrical thorn sheet grooves, each pair of pairwise symmetrical thorn sheet grooves are respectively arranged on two sides of the lower clamping block and the upper clamping block, and the plurality of pairs of thorn sheet grooves jointly form the wire clamping groove.

The installation mode of the puncturing sheet and the puncturing sheet groove is the same as that of the existing puncturing wire clamp. Each side of the thorn piece is provided with at least one insulation device, and the insulation devices can be only positioned in the lower clamping block, also can be only positioned in the upper clamping block, and also can be positioned in the upper clamping block and the lower clamping block, so that the use in different scenes is facilitated.

The sliding groove is in a cuboid shape, the inner side wall of the sliding groove is attached to the upper end portion of the extrusion mechanism, the shape of the inner side wall is similar to that of the upper end of the extrusion mechanism, and the extrusion mechanism can slide in the sliding groove conveniently. The sliding groove and the extrusion mechanism can be tightly attached, and gaps can be reserved, so that the using effect of the extrusion mechanism cannot be influenced.

The extrusion mechanism is used for puncturing an insulating grease cavity in the built-in cavity, insulating grease such as insulating silicone grease can be placed in the insulating grease cavity, and the extruding mechanism is used for waterproof sealing and lubricating insulation.

Preferably, the extrusion mechanism comprises a puncture head in contact with the built-in cavity, a plurality of flow guide channels communicated with each other and an extrusion body, the puncture head is fixedly connected with the upper end of the extrusion body, an opening at one end of each flow guide channel is formed in the puncture head, and an opening at the other end of each flow guide channel is formed in the extrusion body.

The puncture head can be clamped in the upper end of the extrusion body and also can be made into an integrally formed part. The insulating fat chamber includes insulating fat membrane with extrusion body contact site thickness is thinner, is convenient for the extrusion body pierces insulating fat membrane is convenient for insulating fat flows out. The puncture head is used for impaling the insulating fat chamber, insulating fat in the insulating fat chamber passes through after the extrusion of extrusion body, follow water conservancy diversion way opening inflow on the puncture head, because the water conservancy diversion way all communicates each other, consequently, can follow water conservancy diversion way other end opening part flows.

Preferably, the thorn piece grooves are provided with buffer layers, the buffer layers are connected with the thorn piece grooves through springs, the buffer layers are provided with a plurality of through grooves, the sharp ends of the thorn pieces penetrate through the through grooves, and the lower ends of the extrusion mechanisms are in contact with the buffer layers.

When the cable is clamped, the buffer layer is stressed to compress the spring, and the buffer layer is close to the barbed sheet groove. Because the lower end of the extrusion mechanism is in contact with the buffer layer, the extrusion mechanism moves along with the movement of the buffer layer, and the puncture head is driven to puncture the insulating grease cavity.

The spring can guarantee that the thorn piece pierces the cable comparatively slowly when the centre gripping cable, prevents to sting disconnected cable, can also play the cushioning effect simultaneously.

The through groove can guide the insulating grease flowing out of the guide channel to a position for clamping a cable, and the insulating grease is used for waterproof sealing and lubricating insulation.

As preferred, the extrusion body includes integrated into one piece and the last diaphragm that connects gradually, montant and lower diaphragm, it is equipped with to go up the diaphragm upper surface the puncture head, it arranges in to go up the diaphragm in the spout and with the laminating of spout inner wall, down the diaphragm lower surface with the buffer layer contact, it is a plurality of diversion channel other end opening is established in the montant.

The length and the width of the upper transverse plate and the lower transverse plate are both larger than those of the vertical rods. The upper transverse plate slides in the sliding groove and is used for extruding the insulating grease cavity and preventing the extruding mechanism from falling off from the sliding groove when not clamped. And the lower transverse plate drives the extrusion mechanism to move when the buffer mechanism moves.

Preferably, a plurality of elastic bulges for fixing the extrusion mechanism are arranged at the opening of the sliding chute.

The number of the elastic bulges is at least four, and the elastic bulges are respectively fixed in four directions, namely front, back, left and right. The elastic bulge has elasticity, can be through deformation with the extrusion mechanism card is gone into in the spout, is used for fixing the extrusion mechanism prevents the extrusion mechanism from droing from the spout.

Preferably, the fixing mechanism comprises a stud bolt and a torque nut, a through hole is formed in the upper clamping block, the stud bolt penetrates through the through hole and is connected with the torque nut, a sleeve matched with the through hole is arranged on the lower clamping block, and an inner thread matched with the stud bolt is arranged on the sleeve.

One end of the stud bolt is in threaded connection with the sleeve, the other end of the stud bolt is connected with the torque nut, and the stud bolt is used for controlling the thorn piece to penetrate into the cable by controlling the distance between the upper clamping block and the lower clamping block when the cable is clamped.

Preferably, clamping grooves are formed in two sides of the upper clamping block, and inserting frames capable of being embedded into the clamping grooves are arranged in two sides of the lower clamping block.

When the upper clamping block and the lower clamping block are gradually folded and clamped, the inserting frames on the two sides of the lower clamping block can be inserted into the clamping grooves on the two sides of the upper clamping block, so that the upper clamping block and the lower clamping block are connected more stably.

Preferably, both sides of the upper clamping block are provided with clamping plates for limiting the lower clamping block.

The both sides of going up the clamp splice all are provided with and are used for the spacing splint of clamp splice down, work as go up the clamp splice and fold gradually with lower clamp splice and press from both sides tightly the time, the splint on the last clamp splice make clamp splice can't remove down, make the combination of going up clamp splice and clamp splice is more firm down.

Preferably, the pricking pieces in the upper clamping block correspond to the pricking pieces in the lower clamping block one by one.

The number of the thorn pieces in the upper clamping block and the lower clamping block is at least three, and the thorn pieces in the upper clamping block and the lower clamping block correspond to each other one by one, so that the stability when the cable is clamped is higher.

Preferably, the bottom of the lower clamping block is provided with a second clamping groove. The cross section of the second clamping groove is in a convex shape, and the second clamping groove is connected with the bottom of the lower clamping block through a rivet and used for being matched with an operating rod of a puncture wire clamp for common use.

The invention has the beneficial effects that:

(1) through the extrusion mechanism and the insulating grease in the insulating grease cavity, the insulating silicone grease can be uniformly coated on the barbed sheet, and good waterproof sealing, lubricating and insulating effects can be achieved.

(2) And the insulating grease flows into the buffer layer from the insulating grease cavity through a flow guide channel in the extrusion mechanism.

(3) The insulating grease flowing out of the flow guide channel can be guided to the position for clamping the cable through the through groove, and is used for waterproof sealing and lubricating insulation.

(4) Through the cooperation of the buffer layer and the spring, the extrusion mechanism can be moved during the process of clamping the cable, so as to puncture the insulating grease cavity.

(5) The pressing mechanism can be installed and fixed by the elastic protrusions and deformation thereof.

(6) Through draw-in groove and inserted frame, stability when can making the tight cable of clamp is higher.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of another aspect of the present invention.

Fig. 3 is a schematic structural view of the upper clamping block.

Fig. 4 is a schematic structural view of the lower clamp block.

Fig. 5 is a schematic view of the structure of the insulating device.

Fig. 6 is a schematic structural view of the pressing mechanism.

Illustration of the drawings: 1-upper clamping block, 2-torque nut, 3-wire clamping groove, 4-thorn piece, 5-lower clamping block, 6-stud bolt, 7-through hole, 8-clamping plate, 9-clamping groove, 10-sleeve, 11-inserting frame, 12-spring, 13-buffer layer, 14-sliding groove, 15-built-in cavity, 16-extruding mechanism, 17-through groove, 18-elastic bulge, 19-insulating grease cavity, 20-second clamping groove, 161-puncture head, 162-flow guide channel and 163-extruding body.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

The first embodiment is as follows:

as shown in fig. 1, 2, 3, 4 and 5, an insulation piercing connector comprises an upper clamping block 1 and a lower clamping block 5, wherein the lower clamping block is connected with the upper clamping block through a fixing mechanism, two wire clamping grooves 3 for clamping cables are formed when the upper clamping block is fixedly connected with the lower clamping block, stab grooves are respectively arranged in the upper clamping block and the lower clamping block, a plurality of stab sheets 4 are arranged in the stab grooves, a plurality of insulation devices are respectively arranged on two sides of each stab sheet, the insulation devices are arranged in the upper clamping block and/or the lower clamping block, each insulation device comprises a chute 14 with an opening at one end, an internal cavity 15 and an extrusion mechanism 16, the extrusion mechanism is arranged at the opening end of the chute and is in contact with the internal cavity, and an insulation grease cavity 19 is arranged in the internal cavity.

The lower clamping block and the upper clamping block are respectively provided with a plurality of pairs of pairwise symmetrical thorn sheet grooves, each pair of pairwise symmetrical thorn sheet grooves are respectively arranged at two sides of the lower clamping block and the upper clamping block, and the plurality of pairs of thorn sheet grooves jointly form a wire clamping groove.

The installation mode of the puncturing sheet and the puncturing sheet groove is the same as that of the existing puncturing wire clamp. Each side of the thorn piece is provided with at least one insulation device, and the insulation devices are positioned in the lower clamping block.

The sliding groove is in a cuboid shape, the inner side wall of the sliding groove is attached to the upper end portion of the extrusion mechanism, the shape of the inner side wall is similar to that of the upper end of the extrusion mechanism, and the extrusion mechanism can slide in the sliding groove conveniently. The sliding groove and the extrusion mechanism can be tightly attached, and gaps can be reserved, so that the using effect of the extrusion mechanism cannot be influenced.

The extrusion mechanism is used for puncturing an insulating grease cavity in the built-in cavity, insulating grease such as insulating silicone grease can be put into the insulating grease cavity, and the extruding mechanism is used for waterproof sealing and lubricating insulation.

Be equipped with buffer layer 13 on the thorn piece groove, the buffer layer passes through spring 12 and is connected with thorn piece groove, and the buffer layer is equipped with a plurality of logical grooves 17, and thorn piece point end passes logical groove, and the extrusion mechanism lower extreme contacts with the buffer layer.

When the cable is clamped, the buffer layer is stressed to compress the spring, and the buffer layer is close to the thorn piece groove. Because the lower end of the extrusion mechanism is in contact with the buffer layer, the extrusion mechanism moves along with the movement of the buffer layer, and therefore the puncture head is driven to puncture the insulating grease cavity.

The spring can guarantee that the thorn piece pierces the cable comparatively slowly when the centre gripping cable, prevents to sting absolutely the cable, can also play the cushioning effect simultaneously.

The through groove can guide the insulating grease flowing out of the guide channel to the position for clamping the cable, and the insulating grease is used for waterproof sealing and lubricating insulation.

A plurality of elastic bulges 18 for fixing the extruding mechanism are arranged at the opening of the sliding chute.

The number of the elastic bulges is at least four, and the elastic bulges are respectively fixed in four directions, namely front, back, left and right. The elastic bulge has elasticity, can be through deformation with the extrusion mechanism card go into in the spout for fixed extrusion mechanism prevents that extrusion mechanism from droing from the spout.

The fixing mechanism comprises a stud bolt 6 and a torque nut, a through hole 7 is formed in the upper clamping block, the stud bolt penetrates through the through hole and is connected with the torque nut, a sleeve 10 matched with the through hole is formed in the lower clamping block, and an internal thread matched with the stud bolt is formed in the sleeve.

One end of the stud bolt is in threaded connection with the sleeve, and the other end of the stud bolt is connected with the torque nut and used for controlling the stabbing sheet to pierce into the cable by controlling the distance between the upper clamping block and the lower clamping block when the cable is clamped.

Clamping grooves 9 are formed in two sides of the upper clamping block, and inserting frames 11 capable of being embedded into the clamping grooves are arranged in two sides of the lower clamping block.

When the upper clamping block and the lower clamping block are gradually closed and clamped, the inserting frames on the two sides of the lower clamping block can be inserted into the clamping grooves on the two sides of the upper clamping block, so that the connection between the upper clamping block and the lower clamping block is more stable.

Both sides of the upper clamping block are provided with clamping plates 8 for limiting the lower clamping block.

The both sides of going up the clamp splice all are provided with and are used for the spacing splint of clamp splice down, fold gradually when pressing from both sides tightly with lower clamp splice when going up the clamp splice, and splint on the last clamp splice make down the clamp splice unable removal for the combination of going up clamp splice and lower clamp splice is more firm.

The thorn pieces in the upper clamping block correspond to the thorn pieces in the lower clamping block one by one.

The number of the thorn pieces in the upper clamping block and the lower clamping block is at least three, and the thorn pieces in the upper clamping block and the lower clamping block correspond to each other one by one, so that the stability when the cable is clamped is higher.

The bottom of the lower clamping block is provided with a second clamping groove 20. The cross section of the second clamping groove is in a convex shape, and the second clamping groove is connected with the bottom of the lower clamping block through a rivet and used for being matched with an operating rod of the puncture wire clamp for common use.

As shown in fig. 6, the extruding mechanism includes a puncture head 161 contacting with the built-in cavity, a plurality of flow guiding channels 162 and an extruding body 163, the puncture head is fixedly connected with the upper end of the extruding body, one end openings of the plurality of flow guiding channels are arranged on the puncture head, and the other end openings of the plurality of flow guiding channels are arranged on the extruding body.

The puncture head can be clamped in the upper end of the extrusion body and also can be made into an integrated piece. The insulating grease cavity comprises an insulating grease film, the thickness of the contact part of the insulating grease cavity and the extrusion body is thinner, so that the extrusion body can conveniently pierce the insulating grease film, and the insulating grease can conveniently flow out. The puncture head is used for impaling insulating fat chamber, and the insulating fat in the insulating fat chamber flows in through the extrusion back of extrusion body from the water conservancy diversion way opening on the puncture head, because the water conservancy diversion way all communicates each other, consequently, can follow the outflow of water conservancy diversion way other end opening part.

The extrusion body includes integrated into one piece and the last diaphragm, montant and the diaphragm down that connects gradually, goes up the diaphragm upper surface and is equipped with the puncture head, goes up the diaphragm and arranges in the spout and laminate with the spout inner wall, and diaphragm lower surface and buffer layer contact down, and a plurality of water conservancy diversion way other end openings are established in the montant.

The length and width of the upper transverse plate and the lower transverse plate are both larger than the vertical rod. The upper transverse plate slides in the sliding groove and is used for extruding the insulating grease cavity and preventing the extruding mechanism from falling off from the sliding groove when not clamped. When the buffer mechanism moves, the lower transverse plate drives the extrusion mechanism to move.

The working principle is as follows:

during clamping, the upper clamping block and the lower clamping block control the distance between the upper clamping block and the lower clamping block to be reduced through the stud bolts and the torque nuts, and the space in front of the wire clamping groove is controlled to be reduced, so that the stabbing sheet pierces into the cable. When the buffer layer contacts the cable, the spring is compressed, thereby reducing the distance between the buffer layer and the stab plate groove, and thereby moving the extrusion mechanism in contact with the buffer layer to pierce the insulating grease cavity. After the insulation grease is pierced, the insulation grease flows out from the insulation grease cavity, flows into the space between the buffer layer and the piercing sheet groove through the flow guide channel of the extrusion mechanism, and then flows to the position for clamping the cable through the groove, so that the insulation grease is used for waterproof sealing and lubricating insulation.

Example two:

as shown in fig. 1, 2, 3, 4 and 5, an insulation piercing connector comprises an upper clamping block 1 and a lower clamping block 5, wherein the lower clamping block is connected with the upper clamping block through a fixing mechanism, two wire clamping grooves 3 for clamping cables are formed when the upper clamping block is fixedly connected with the lower clamping block, stab grooves are respectively arranged in the upper clamping block and the lower clamping block, a plurality of stab sheets 4 are arranged in the stab grooves, a plurality of insulation devices are respectively arranged on two sides of each stab sheet, the insulation devices are arranged in the upper clamping block and/or the lower clamping block, each insulation device comprises a chute 14 with an opening at one end, an internal cavity 15 and an extrusion mechanism 16, the extrusion mechanism is arranged at the opening end of the chute and is in contact with the internal cavity, and an insulation grease cavity 19 is arranged in the internal cavity.

The lower clamping block and the upper clamping block are respectively provided with a plurality of pairs of pairwise symmetrical thorn sheet grooves, each pair of pairwise symmetrical thorn sheet grooves are respectively arranged at two sides of the lower clamping block and the upper clamping block, and the plurality of pairs of thorn sheet grooves jointly form a wire clamping groove.

The installation mode of the puncturing sheet and the puncturing sheet groove is the same as that of the existing puncturing wire clamp. Each side of the thorn piece is provided with at least one insulation device, and the insulation devices are positioned in the upper clamping block.

The sliding groove is in a cuboid shape, the inner side wall of the sliding groove is attached to the upper end portion of the extrusion mechanism, the shape of the inner side wall is similar to that of the upper end of the extrusion mechanism, and the extrusion mechanism can slide in the sliding groove conveniently. The sliding groove and the extrusion mechanism can be tightly attached, and gaps can be reserved, so that the using effect of the extrusion mechanism cannot be influenced.

The extrusion mechanism is used for puncturing an insulating grease cavity in the built-in cavity, insulating grease such as insulating silicone grease can be put into the insulating grease cavity, and the extruding mechanism is used for waterproof sealing and lubricating insulation.

Be equipped with buffer layer 13 on the thorn piece groove, the buffer layer passes through spring 12 and is connected with thorn piece groove, and the buffer layer is equipped with a plurality of logical grooves 17, and thorn piece point end passes logical groove, and the extrusion mechanism lower extreme contacts with the buffer layer.

When the cable is clamped, the buffer layer is stressed to compress the spring, and the buffer layer is close to the thorn piece groove. Because the lower end of the extrusion mechanism is in contact with the buffer layer, the extrusion mechanism moves along with the movement of the buffer layer, and therefore the puncture head is driven to puncture the insulating grease cavity.

The spring can guarantee that the thorn piece pierces the cable comparatively slowly when the centre gripping cable, prevents to sting absolutely the cable, can also play the cushioning effect simultaneously.

The through groove can guide the insulating grease flowing out of the guide channel to the position for clamping the cable, and the insulating grease is used for waterproof sealing and lubricating insulation.

A plurality of elastic bulges 18 for fixing the extruding mechanism are arranged at the opening of the sliding chute.

The number of the elastic bulges is at least four, and the elastic bulges are respectively fixed in four directions, namely front, back, left and right. The elastic bulge has elasticity, can be through deformation with the extrusion mechanism card go into in the spout for fixed extrusion mechanism prevents that extrusion mechanism from droing from the spout.

The fixing mechanism comprises a stud bolt 6 and a torque nut, a through hole 7 is formed in the upper clamping block, the stud bolt penetrates through the through hole and is connected with the torque nut, a sleeve 10 matched with the through hole is formed in the lower clamping block, and an internal thread matched with the stud bolt is formed in the sleeve.

One end of the stud bolt is in threaded connection with the sleeve, and the other end of the stud bolt is connected with the torque nut and used for controlling the stabbing sheet to pierce into the cable by controlling the distance between the upper clamping block and the lower clamping block when the cable is clamped.

Clamping grooves 9 are formed in two sides of the upper clamping block, and inserting frames 11 capable of being embedded into the clamping grooves are arranged in two sides of the lower clamping block.

When the upper clamping block and the lower clamping block are gradually closed and clamped, the inserting frames on the two sides of the lower clamping block can be inserted into the clamping grooves on the two sides of the upper clamping block, so that the connection between the upper clamping block and the lower clamping block is more stable.

Both sides of the upper clamping block are provided with clamping plates 8 for limiting the lower clamping block.

The both sides of going up the clamp splice all are provided with and are used for the spacing splint of clamp splice down, fold gradually when pressing from both sides tightly with lower clamp splice when going up the clamp splice, and splint on the last clamp splice make down the clamp splice unable removal for the combination of going up clamp splice and lower clamp splice is more firm.

The thorn pieces in the upper clamping block correspond to the thorn pieces in the lower clamping block one by one.

The number of the thorn pieces in the upper clamping block and the lower clamping block is at least three, and the thorn pieces in the upper clamping block and the lower clamping block correspond to each other one by one, so that the stability when the cable is clamped is higher.

The bottom of the lower clamping block is provided with a second clamping groove 20. The cross section of the second clamping groove is in a convex shape, and the second clamping groove is connected with the bottom of the lower clamping block through a rivet and used for being matched with an operating rod of the puncture wire clamp for common use.

As shown in fig. 6, the extruding mechanism includes a puncture head 161 contacting with the built-in cavity, a plurality of flow guiding channels 162 and an extruding body 163, the puncture head is fixedly connected with the upper end of the extruding body, one end openings of the plurality of flow guiding channels are arranged on the puncture head, and the other end openings of the plurality of flow guiding channels are arranged on the extruding body.

The puncture head can be clamped in the upper end of the extrusion body and also can be made into an integrated piece. The insulating grease cavity comprises an insulating grease film, the thickness of the contact part of the insulating grease cavity and the extrusion body is thinner, so that the extrusion body can conveniently pierce the insulating grease film, and the insulating grease can conveniently flow out. The puncture head is used for impaling insulating fat chamber, and the insulating fat in the insulating fat chamber flows in through the extrusion back of extrusion body from the water conservancy diversion way opening on the puncture head, because the water conservancy diversion way all communicates each other, consequently, can follow the outflow of water conservancy diversion way other end opening part.

The extrusion body includes integrated into one piece and the last diaphragm, montant and the diaphragm down that connects gradually, goes up the diaphragm upper surface and is equipped with the puncture head, goes up the diaphragm and arranges in the spout and laminate with the spout inner wall, and diaphragm lower surface and buffer layer contact down, and a plurality of water conservancy diversion way other end openings are established in the montant.

The length and width of the upper transverse plate and the lower transverse plate are both larger than the vertical rod. The upper transverse plate slides in the sliding groove and is used for extruding the insulating grease cavity and preventing the extruding mechanism from falling off from the sliding groove when not clamped. When the buffer mechanism moves, the lower transverse plate drives the extrusion mechanism to move.

The working principle is as follows:

during clamping, the upper clamping block and the lower clamping block control the distance between the upper clamping block and the lower clamping block to be reduced through the stud bolts and the torque nuts, and the space in front of the wire clamping groove is controlled to be reduced, so that the stabbing sheet pierces into the cable. When the buffer layer contacts the cable, the spring is compressed, thereby reducing the distance between the buffer layer and the stab plate groove, and thereby moving the extrusion mechanism in contact with the buffer layer to pierce the insulating grease cavity. After the insulation grease is pierced, the insulation grease flows out from the insulation grease cavity, flows into the space between the buffer layer and the piercing sheet groove through the flow guide channel of the extrusion mechanism, and then flows to the position for clamping the cable through the groove, so that the insulation grease is used for waterproof sealing and lubricating insulation.

Example three:

as shown in fig. 1, 2, 3, 4 and 5, an insulation piercing connector comprises an upper clamping block 1 and a lower clamping block 5, wherein the lower clamping block is connected with the upper clamping block through a fixing mechanism, two wire clamping grooves 3 for clamping cables are formed when the upper clamping block is fixedly connected with the lower clamping block, stab grooves are respectively arranged in the upper clamping block and the lower clamping block, a plurality of stab sheets 4 are arranged in the stab grooves, a plurality of insulation devices are respectively arranged on two sides of each stab sheet, the insulation devices are arranged in the upper clamping block and/or the lower clamping block, each insulation device comprises a chute 14 with an opening at one end, an internal cavity 15 and an extrusion mechanism 16, the extrusion mechanism is arranged at the opening end of the chute and is in contact with the internal cavity, and an insulation grease cavity 19 is arranged in the internal cavity.

The lower clamping block and the upper clamping block are respectively provided with a plurality of pairs of pairwise symmetrical thorn sheet grooves, each pair of pairwise symmetrical thorn sheet grooves are respectively arranged at two sides of the lower clamping block and the upper clamping block, and the plurality of pairs of thorn sheet grooves jointly form a wire clamping groove.

The installation mode of the puncturing sheet and the puncturing sheet groove is the same as that of the existing puncturing wire clamp. Each side of the thorn piece is provided with at least one insulation device, and the insulation devices are positioned in the upper clamping block and the lower clamping block.

The sliding groove is in a cuboid shape, the inner side wall of the sliding groove is attached to the upper end portion of the extrusion mechanism, the shape of the inner side wall is similar to that of the upper end of the extrusion mechanism, and the extrusion mechanism can slide in the sliding groove conveniently. The sliding groove and the extrusion mechanism can be tightly attached, and gaps can be reserved, so that the using effect of the extrusion mechanism cannot be influenced.

The extrusion mechanism is used for puncturing an insulating grease cavity in the built-in cavity, insulating grease such as insulating silicone grease can be put into the insulating grease cavity, and the extruding mechanism is used for waterproof sealing and lubricating insulation.

Be equipped with buffer layer 13 on the thorn piece groove, the buffer layer passes through spring 12 and is connected with thorn piece groove, and the buffer layer is equipped with a plurality of logical grooves 17, and thorn piece point end passes logical groove, and the extrusion mechanism lower extreme contacts with the buffer layer.

When the cable is clamped, the buffer layer is stressed to compress the spring, and the buffer layer is close to the thorn piece groove. Because the lower end of the extrusion mechanism is in contact with the buffer layer, the extrusion mechanism moves along with the movement of the buffer layer, and therefore the puncture head is driven to puncture the insulating grease cavity.

The spring can guarantee that the thorn piece pierces the cable comparatively slowly when the centre gripping cable, prevents to sting absolutely the cable, can also play the cushioning effect simultaneously.

The through groove can guide the insulating grease flowing out of the guide channel to the position for clamping the cable, and the insulating grease is used for waterproof sealing and lubricating insulation.

A plurality of elastic bulges 18 for fixing the extruding mechanism are arranged at the opening of the sliding chute.

The number of the elastic bulges is at least four, and the elastic bulges are respectively fixed in four directions, namely front, back, left and right. The elastic bulge has elasticity, can be through deformation with the extrusion mechanism card go into in the spout for fixed extrusion mechanism prevents that extrusion mechanism from droing from the spout.

The fixing mechanism comprises a stud bolt 6 and a torque nut, a through hole 7 is formed in the upper clamping block, the stud bolt penetrates through the through hole and is connected with the torque nut, a sleeve 10 matched with the through hole is formed in the lower clamping block, and an internal thread matched with the stud bolt is formed in the sleeve.

One end of the stud bolt is in threaded connection with the sleeve, and the other end of the stud bolt is connected with the torque nut and used for controlling the stabbing sheet to pierce into the cable by controlling the distance between the upper clamping block and the lower clamping block when the cable is clamped.

Clamping grooves 9 are formed in two sides of the upper clamping block, and inserting frames 11 capable of being embedded into the clamping grooves are arranged in two sides of the lower clamping block.

When the upper clamping block and the lower clamping block are gradually closed and clamped, the inserting frames on the two sides of the lower clamping block can be inserted into the clamping grooves on the two sides of the upper clamping block, so that the connection between the upper clamping block and the lower clamping block is more stable.

Both sides of the upper clamping block are provided with clamping plates 8 for limiting the lower clamping block.

The both sides of going up the clamp splice all are provided with and are used for the spacing splint of clamp splice down, fold gradually when pressing from both sides tightly with lower clamp splice when going up the clamp splice, and splint on the last clamp splice make down the clamp splice unable removal for the combination of going up clamp splice and lower clamp splice is more firm.

The thorn pieces in the upper clamping block correspond to the thorn pieces in the lower clamping block one by one.

The number of the thorn pieces in the upper clamping block and the lower clamping block is at least three, and the thorn pieces in the upper clamping block and the lower clamping block correspond to each other one by one, so that the stability when the cable is clamped is higher.

The bottom of the lower clamping block is provided with a second clamping groove 20. The cross section of the second clamping groove is in a convex shape, and the second clamping groove is connected with the bottom of the lower clamping block through a rivet and used for being matched with an operating rod of the puncture wire clamp for common use.

As shown in fig. 6, the extruding mechanism includes a puncture head 161 contacting with the built-in cavity, a plurality of flow guiding channels 162 and an extruding body 163, the puncture head is fixedly connected with the upper end of the extruding body, one end openings of the plurality of flow guiding channels are arranged on the puncture head, and the other end openings of the plurality of flow guiding channels are arranged on the extruding body.

The puncture head can be clamped in the upper end of the extrusion body and also can be made into an integrated piece. The insulating grease cavity comprises an insulating grease film, the thickness of the contact part of the insulating grease cavity and the extrusion body is thinner, so that the extrusion body can conveniently pierce the insulating grease film, and the insulating grease can conveniently flow out. The puncture head is used for impaling insulating fat chamber, and the insulating fat in the insulating fat chamber flows in through the extrusion back of extrusion body from the water conservancy diversion way opening on the puncture head, because the water conservancy diversion way all communicates each other, consequently, can follow the outflow of water conservancy diversion way other end opening part.

The extrusion body includes integrated into one piece and the last diaphragm, montant and the diaphragm down that connects gradually, goes up the diaphragm upper surface and is equipped with the puncture head, goes up the diaphragm and arranges in the spout and laminate with the spout inner wall, and diaphragm lower surface and buffer layer contact down, and a plurality of water conservancy diversion way other end openings are established in the montant.

The length and width of the upper transverse plate and the lower transverse plate are both larger than the vertical rod. The upper transverse plate slides in the sliding groove and is used for extruding the insulating grease cavity and preventing the extruding mechanism from falling off from the sliding groove when not clamped. When the buffer mechanism moves, the lower transverse plate drives the extrusion mechanism to move.

The working principle is as follows:

during clamping, the upper clamping block and the lower clamping block control the distance between the upper clamping block and the lower clamping block to be reduced through the stud bolts and the torque nuts, and the space in front of the wire clamping groove is controlled to be reduced, so that the stabbing sheet pierces into the cable. When the buffer layer contacts the cable, the spring is compressed, thereby reducing the distance between the buffer layer and the stab plate groove, and thereby moving the extrusion mechanism in contact with the buffer layer to pierce the insulating grease cavity. After the insulation grease is pierced, the insulation grease flows out from the insulation grease cavity, flows into the space between the buffer layer and the piercing sheet groove through the flow guide channel of the extrusion mechanism, and then flows to the position for clamping the cable through the groove, so that the insulation grease is used for waterproof sealing and lubricating insulation.

It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.