阅读说明：本技术 一种耐火电力电缆的接头连接装置 (Fire-resistant power cable's joint connecting device ) 是由 谢忠 陈绍明 林卫东 于 2019-09-05 设计创作，主要内容包括：本发明公开了一种耐火电力电缆的接头连接装置,包括第一电缆本体、第二电缆本体、第一连接头、第二连接头、螺母、固定结构、紧固结构、抵触结构及密封结构。本发明的有益效果是：外螺纹管螺纹进入内螺纹管的同时,使固定环和固定圈相互抵触,固定圈将固定环一侧的两个固定杆推入到第一连接头的内部后,使两个固定杆推动第一连接头内部的两个限位块,使压力弹簧收缩产生弹力,使限位块的侧壁挤压杠杆,使两个杠杆在第一连接头内部转动,使其中一个杠杆的一侧挤压密封环上的固定块,使另一个杠杆挤压密封盘上的固定块,使密封环向下滑动一段距离,使密封盘向上滑动一段距离,从而使密封环和密封盘相互靠近挤压第一电缆本体。(The invention discloses a connector connecting device of a fire-resistant power cable, which comprises a first cable body, a second cable body, a first connector, a second connector, a nut, a fixing structure, a fastening structure, a contact structure and a sealing structure. The invention has the beneficial effects that: when external screw thread pipe thread gets into the internal thread pipe, make solid fixed ring and retainer plate contradict each other, the retainer plate pushes the inside back of first connector with two dead levers of solid fixed ring one side, make two dead levers promote two inside stoppers of first connector, make the compression spring shrink produce elasticity, make the lateral wall extrusion lever of stopper, make two levers rotate inside first connector, make the fixed block on one side extrusion sealing ring of one of them lever, make the fixed block on another lever extrusion sealing dish, make one section distance of sealing ring lapse, make one section distance of sealed dish lapse, thereby make sealed dish and sealed dish be close to extrusion first cable body each other.)

1. A connector connecting device of a fire-resistant power cable comprises a first cable body (1), a second cable body (2), a first connector (3), a second connector (4), a nut (5), a fixing structure (6), a fastening structure (7), a collision structure (8) and a sealing structure (9); the first cable body (1) is electrically connected with the second cable body (2) for power transmission by lengthening the cable length, the first cable body (1) is connected with the first connector (3) in a sliding manner, the side wall of the first connector (3) is fixed with the nut (5) for rotation, the second cable body (2) is connected with the second connector (4) for fixation, the side wall of the second connector (4) is fixed with the nut (5), the first connector (3) and the second connector (4) are both internally connected with the sealing structure (9) for sealing and fixing, the first connector (3) and the second connector (4) are both internally connected with the fixing structure (6) for fixing and pushing, the sealing structure (9) and the fixing structure (6) are connected, first connector (3) with the inside wall of second connector (4) all is connected with conflict structure (8), conflict structure (8) with seal structure (9) are connected.

2. A joint connection device of fire-resistant electric power cable according to claim 1, characterized in that: fixed knot constructs (6) including external screw thread pipe (61), dead lever (62) and solid fixed ring (63), the lateral wall of second connector (4) is fixed with the lateral wall and establishes the screw thread external screw thread pipe (61), external screw thread pipe (61) with sliding connection between first cable body (1), external screw thread pipe (61) symmetry sliding connection has two dead lever (62), two dead lever (62) all extends to the inside wall of first connector (3), two the lateral wall of dead lever (62) is fixed with gu fixed ring (63), gu fixed ring (63) are located the outside of external screw thread pipe (61), gu fixed ring (63) with sliding connection between first cable body (1).

3. A joint connection device of fire-resistant electric power cable according to claim 2, characterized in that: the fastening structure (7) comprises an internal threaded pipe (71), fixing columns (72) and a fixing ring (73), wherein the inner side wall of the first connecting head (3) is fixed with the internal threaded pipe (71) with threads, the internal threaded pipe (71) is in sliding connection with the second cable body (2), the internal threaded pipe (71) is in sliding connection with two fixing columns (72) symmetrically, the two fixing columns (72) extend to the inner side wall of the second connecting head (4), the fixing ring (73) is fixed on the side wall of the two fixing columns (72), the fixing ring (73) is located inside the internal threaded pipe (71), the fixing ring (73) is in sliding connection with the second cable body (2), the outer diameter of the external threaded pipe (61) is the same as the inner diameter of the internal threaded pipe (71), and the length of the internal threaded pipe (71) is greater than that of the external threaded pipe (61), the minimum horizontal distance between the fixing ring (63) and the external thread pipe (61) is smaller than the minimum horizontal distance between the fixing ring (73) and the second connector (4).

4. A joint connection device of fire-resistant electric power cable according to claim 3, characterized in that: the sealing structure (9) comprises a lever (91), a fixing block (92), a sealing ring (93), a pressure spring (94), a limiting block (95) and a sealing disc (96), wherein the inner side wall of the first connector (3) is rotationally connected with the lever (91), the first connector (3) is slidably connected with the sealing ring (93) which is of a semi-annular structure, the sealing ring (93) is abutted against the first cable body (1), the fixing block (92) is fixed at the top end of the sealing ring (93), the fixing block (92) is abutted against the bottom side wall of the lever (91) and one of the fixing blocks (62), the limiting block (95) which is of a trapezoidal structure is slidably connected between the inner side wall of the lever (91) and the inner side wall of the first connector (3), and the limiting block (95) is abutted against the side wall of the fixing rod (62), sealing ring (93) sliding connection has and is the semicircular structure sealed dish (96), sealed dish (96) with first cable body (1) is contradicted, sealed dish (96) bottom mounting has fixed block (92), fixed block (92) and another lever (91) are contradicted, lever (91) with the inside wall sliding connection of first connector (3) has another stopper (95), stopper (95) and another dead lever (62) are contradicted, two stopper (95) with all be fixed with between the inside wall of first connector (3) compression spring (94).

5. A joint connection device of fire-resistant electric power cable according to claim 4, characterized in that: conflict structure (8) include slide bar (81) and tension spring (82), the inside wall symmetry sliding connection of first connector (3) has two slide bar (81), two slide bar (81) with the inside wall of first connector (3) all is fixed with tension spring (82), slide bar (81) run through in tension spring (82)'s inside, two slide bar (81)'s lateral wall respectively with two lever (91) deviates from the lateral wall of pressure spring (94) is contradicted, slide bar (81) with distance between lever (91) the inside pivot is greater than fixed block (92) with distance between lever (91) the inside pivot, the elasticity of pressure spring (94) is greater than the elasticity of tension spring (82).

6. A joint connection device of fire-resistant electric power cable according to claim 5, characterized in that: the inside wall symmetry of second connector (4) rotates and is connected with two lever (91), two lever (91) with equal sliding connection has between the inside wall of second connector (4) stopper (95), two stopper (95) respectively with two the lateral wall of fixed column (72) is contradicted, the inside wall symmetry sliding connection of second connector (4) has two slide bar (81), two slide bar (81) respectively with inside two of second connector (4) lever (91) is contradicted.

Technical Field

The invention relates to a cable joint, in particular to a joint connecting device of a fire-resistant power cable, and belongs to the technical field of cable joints.

Background

The cable joints are also called cable heads, after the cable is laid, in order to form a continuous line, all the sections of the cable must be connected into a whole, the connection points are called cable joints, the cable joint in the middle of the cable line is called an intermediate joint, the cable joints at two tail ends of the line are called terminal heads, and the cable joints are used for locking and fixing the incoming and outgoing lines.

However, when the conventional cable joint is used for connecting each section of flexible cable, because the cable skin has certain elasticity, some gaps are generated between the cable joint and the cable in the process of extrusion touch, so that the sealing effect between the cable joint and the cable is poor, and the protection of the joint of each section of cable is not facilitated.

Disclosure of Invention

The present invention is directed to solving the above problems, and an object of the present invention is to provide a connector connecting device for a fire-resistant power cable, which is easy to fix, easy to connect, and prevents damage to the cable.

The invention realizes the aim through the following technical scheme, and the joint connecting device of the fire-resistant power cable comprises a first cable body, a second cable body, a first joint, a second joint, a nut, a fixing structure, a fastening structure, a butting structure and a sealing structure; the first cable body for power transmission is electrically connected with the second cable body for power transmission by lengthening the cable length, the first cable body is connected with the first connector for fixing in a sliding way, the nut for rotating is fixed on the side wall of the first connector, the second cable body is connected with the second connector for fixing, the nut is fixed on the side wall of the second connector, the first connector and the second connector are both internally connected with the sealing structure for sealing and fixing, the first connector and the second connector are both internally connected with the fixing structures for fixing and pushing, the sealing structure with fixed knot constructs the connection, first connector with the inside wall of second connector all is connected with the conflict structure, the conflict structure with sealing structure connects.

It is specific, fixed knot constructs including external screw thread pipe, dead lever and solid fixed ring, the lateral wall of second connector is fixed with the lateral wall and is equipped with the screwed external screw thread pipe, external screw thread pipe with sliding connection between the first cable body, external screw thread pipe symmetry sliding connection has two the dead lever, two the dead lever all extends to the inside wall of first connector, two the lateral wall of dead lever is fixed with gu fixed ring, gu fixed ring is located the outside of external screw thread pipe, gu fixed ring with sliding connection between the first cable body.

Specifically, the fastening structure comprises an internal thread pipe, a fixing column and a fixing ring, the internal thread pipe with threads on the inner side wall is fixed on the side wall of the first connector, the internal thread pipe is connected with the second cable body in a sliding way, the internal thread pipe is symmetrically connected with two fixing columns in a sliding way, the two fixing columns extend to the inner side wall of the second connector, the fixing rings are fixed on the side walls of the two fixing columns, the fixing ring is positioned in the inner part of the inner threaded pipe and is connected with the second cable body in a sliding way, the outer diameter of the external thread pipe is the same as the inner diameter of the internal thread pipe, the length of the internal thread pipe is longer than that of the external thread pipe, the fixed ring with minimum horizontal distance between the external thread pipe is less than the fixed ring with minimum horizontal distance between the second connector.

Specifically, seal structure includes lever, fixed block, sealing ring, compression spring, stopper and sealed dish, the inside wall symmetry rotation of first connector is connected with the lever, first connector sliding connection has the sealing ring that is semi-annular structure, the sealing ring with first cable body is contradicted, the top of sealing ring is fixed with the fixed block, fixed block and one of them the bottom lateral wall of lever is contradicted, sliding connection has one between the lever with the inside wall of first connector and is trapezoidal structure the stopper, stopper and one of them the lateral wall of dead lever is contradicted, sealing ring sliding connection has the sealed dish that is semi-annular structure, sealed dish with first cable body is contradicted, sealed dish bottom mounting has the fixed block, the fixed block is contradicted with another the lever, the lever with the inside wall sliding connection of first connector has another the stopper, stopper and another the dead lever is contradicted, two the stopper with all be fixed with between the inside wall of first connector pressure spring.

Specifically, the conflict structure includes slide bar and tension spring, the inside wall symmetry sliding connection of first connector has two the slide bar, two the slide bar with the inside wall of first connector all is fixed with tension spring, the slide bar run through in tension spring's inside, two the lateral wall of slide bar deviates from with two the lever respectively pressure spring's lateral wall is contradicted, the slide bar with distance between the inside pivot of lever is greater than the fixed block with distance between the inside pivot of lever, pressure spring's elasticity is greater than tension spring's elasticity.

Specifically, the inside wall symmetry of second connector rotates and is connected with two the lever, two the lever with equal sliding connection has between the inside wall of second connector the stopper, two the stopper respectively with two the lateral wall of fixed column is contradicted, the inside wall symmetry sliding connection of second connector has two the slide bar, two the slide bar respectively with inside two of second connector the lever is contradicted.

The invention has the beneficial effects that:

(1) when the thread of the external thread pipe enters the internal thread pipe, the fixing ring and the fixing ring are mutually butted, after the fixing ring pushes the two fixing rods at one side of the fixing ring into the first connector, the two fixed rods push the two limit blocks in the first connector to make the pressure spring contract to generate elastic force, the side walls of the limit blocks extrude the levers, the two levers rotate in the first connector to make one side of one lever extrude the fixed block on the sealing ring and the other lever extrude the fixed block on the sealing disc to make the sealing ring slide downwards for a certain distance and make the sealing disc slide upwards for a certain distance, thereby make sealing ring and sealed dish be close to each other and extrude first cable body, seal the junction of first connector and first cable body when making first connector fix the outside of first cable body, prevent that foreign matter from getting into the inside of first connector.

(2) According to the connector connecting device for the fire-resistant power cable, disclosed by the invention, the lever pushes the two sliding rods in the first connector when rotating in the first connector, so that the two tension springs contract to generate elastic force, the two sliding rods slide out of the first connector to extrude the wall, the first connector is fixed in a perforated hole in the wall, the first cable body is fixed, and the first cable body and the second cable body are further prevented from being separated.

Drawings

Fig. 1 is a schematic overall structure diagram of a connector connecting device of a fire-resistant power cable according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the attachment of the securing structure, fastening structure and sealing structure shown in FIG. 1;

FIG. 3 is an enlarged view of the part A shown in FIG. 2;

FIG. 4 is a schematic structural view of the seal structure shown in FIG. 1;

fig. 5 is a schematic structural view of the fixing structure shown in fig. 1.

In the figure: 1. the cable comprises a first cable body, a second cable body, a first connector, a second connector, a nut, a fixing structure 61, an external threaded pipe, a fixing rod 62, a fixing rod 63, a fixing ring 7, a fastening structure 71, an internal threaded pipe 72, a fixing column 73, a fixing ring 8, an abutting structure 81, a sliding rod 82, a tension spring 9, a sealing structure 91, a lever 92, a fixing block 93, a sealing ring 94, a pressure spring 95, a limiting block 96 and a sealing disc.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a connector connecting device for a fire-resistant power cable includes a first cable body 1, a second cable body 2, a first connector 3, a second connector 4, a nut 5, a fixing structure 6, a fastening structure 7, a contact structure 8, and a sealing structure 9; the first cable body 1 for power transmission is electrically connected with the second cable body 2 for power transmission by lengthening the cable length, the first cable body 1 is slidably connected with the first connector 3 for fixation, the side wall of the first connector 3 is fixed with the nut 5 for rotation, the second cable body 2 is connected with the second connector 4 for fixation, the side wall of the second connector 4 is fixed with the nut 5, the first connector 3 and the second connector 4 are both internally connected with the sealing structure 9 for sealing and fixation, the first connector 3 and the second connector 4 are both internally connected with the fixing structure 6 for fixation and pushing, the sealing structure 9 is connected with the fixing structure 6, the inner side walls of the first connector 3 and the second connector 4 are both connected with the conflict structure 8, the interference structure 8 is connected with the sealing structure 9.

Specifically, the fixing structure 6 includes an external threaded pipe 61, fixing rods 62 and a fixing ring 63, the external threaded pipe 61 with threads on the outer side wall is fixed on the side wall of the second connector 4, the external threaded pipe 61 is slidably connected with the first cable body 1, the external threaded pipe 61 is symmetrically and slidably connected with two fixing rods 62, both the two fixing rods 62 extend to the inner side wall of the first connector 3, the fixing ring 63 is fixed on the side wall of the two fixing rods 62, the fixing ring 63 is located outside the external threaded pipe 61, and the fixing ring 63 is slidably connected with the first cable body 1; in order to make through rotating first connector 3, the external screw thread pipe 61 gets into inside internal thread pipe 71, make first connector 3 fix second connector 4 is connected fixedly, will first cable body 1 with second cable body 2 electric connection position parcel, external screw thread pipe 61 gets into when internal thread pipe 71, make solid fixed ring 63 with retainer plate 73 contradicts each other, retainer plate 73 will gu two of fixed ring 63 one side dead lever 62 pushes first connector 3's inside, gu fixed ring 63 will gu two of retainer plate 73 one side fixed column 72 pushes the inside of second connector 4.

Specifically, fastening structure 7 includes internal thread pipe 71, fixed column 72 and retainer plate 73, the lateral wall of first connector 3 is fixed with the inside wall and is equipped with the screw thread internal thread pipe 71, internal thread pipe 71 with sliding connection between second cable body 2, internal thread pipe 71 symmetry sliding connection has two fixed column 72, two fixed column 72 all extends to the inside wall of second connector 4, two the lateral wall of fixed column 72 is fixed with retainer plate 73, retainer plate 73 is located the inside of internal thread pipe 71, retainer plate 73 with sliding connection between second cable body 2, the external diameter of external screw thread pipe 61 with internal thread pipe 71's internal diameter is the same, the length of internal thread pipe 71 is greater than the length of external screw thread pipe 61, retainer ring 63 with the minimum horizontal distance between external screw thread pipe 61 is less than retainer plate 73 with the minimum horizontal distance between second connector 4 Separating; in order to fixedly connect the first connector 3 and the second connector 4 through the external threaded pipe 61 and the internal threaded pipe 71, the joint of the first cable body 1 and the second cable body 2 is wrapped, and the joint of the first cable body 1 and the second cable body 2 is prevented from being exposed outside.

Specifically, seal structure 9 includes lever 91, fixed block 92, sealing ring 93, compression spring 94, stopper 95 and sealed dish 96, the inside wall symmetry of first connector 3 is rotated and is connected with lever 91, first connector 3 sliding connection has the sealing ring 93 that is the semi-annular structure, sealing ring 93 with first cable body 1 contradicts, the top of sealing ring 93 is fixed with fixed block 92, fixed block 92 and one of them the bottom lateral wall of lever 91 contradicts, lever 91 with sliding connection has one to be the trapezium structure between the inside wall of first connector 3 stopper 95, stopper 95 and one of them the lateral wall of dead lever 62 contradicts, sealing ring 93 sliding connection has the sealed dish 96 that is the semi-annular structure, sealed dish 96 with first cable body 1 contradicts, the fixed block 92 is fixed at the bottom end of the sealing disc 96, the fixed block 92 abuts against the other lever 91, the lever 91 is slidably connected with the other limiting block 95 through the inner side wall of the first connector 3, the limiting block 95 abuts against the other fixing rod 62, and the pressure spring 94 is fixed between the two limiting blocks 95 and the inner side wall of the first connector 3; in order that the fixing ring 73 will two of the fixing ring 63 side the fixing rod 62 is pushed into the inside of the first connector 3, two the fixing rod 62 pushes two of the inside of the first connector 3 the stopper 95 makes the compression spring 94 contract to generate elastic force, so that the side wall of the stopper 95 presses the lever 91, makes two the lever 91 rotates inside the first connector 3, makes one of the lever 91 side press the fixing block 92 on the sealing ring 93, makes the other lever 91 press the fixing block 92 on the sealing disc 96, makes the sealing ring 93 slide down for a distance, makes the 96 slide up for a distance, so that the sealing ring 93 and the sealing disc 96 are close to each other to press the first cable body 1, makes the first connector 3 fix the outside of the first cable body 1 while to the first connector 3 and the first electric cable body 1 The joint of the cable body 1 is sealed to prevent foreign objects from entering the inside of the first joint 3.

Specifically, the abutting structure 8 comprises two sliding rods 81 and a tension spring 82, the inner side wall of the first connector 3 is symmetrically slidably connected with the two sliding rods 81, the tension spring 82 is fixed on the inner side walls of the two sliding rods 81 and the first connector 3, the sliding rods 81 penetrate through the tension spring 82, the side walls of the two sliding rods 81 are abutted against the side walls of the two levers 91 departing from the pressure spring 94, the distance between the sliding rods 81 and the inner rotating shafts of the levers 91 is greater than the distance between the fixed block 92 and the inner rotating shafts of the levers 91, and the elasticity of the pressure spring 94 is greater than the elasticity of the tension spring 82; when the two levers 91 rotate inside the first connector 3, the two sliding rods 81 inside the first connector 3 are pushed, so that the two tension springs 94 contract to generate elastic force, the two sliding rods 81 slide out of the first connector 3 to extrude the wall, the first connector 3 is fixed in a hole drilled inside the wall, and the first cable body 1 is fixed.

Specifically, the inner side wall of the second connector 4 is symmetrically and rotatably connected with two levers 91, the two levers 91 and the inner side wall of the second connector 4 are both slidably connected with the limiting blocks 95, the two limiting blocks 95 are respectively abutted against the side walls of the two fixing columns 72, the inner side wall of the second connector 4 is symmetrically and slidably connected with two sliding rods 81, and the two sliding rods 81 are respectively abutted against the two levers 91 inside the second connector 4; in order to make inside the second connector 4 sealed dish 96 with the extrusion is close to each other to sealing ring 93 the second cable body 2 makes the second connector 4 is fixed seal when on the second cable body 2, makes simultaneously in two inside slide bars 81 roll-off extrusion walls of second connector 4 holes, make on the second connector 3 the second cable body 2 is fixed.

When the invention is used, firstly, a worker electrically connects a first cable body 1 and a second cable body 2 and inserts the first cable body and the second cable body into a hole reserved in a wall body, rotates nuts on a first connector 3 and a second connector, so that the first connector and the second connector respectively rotate on the first cable body and the second cable body, so that the first connector and the second connector both enter the hole on the wall, an external thread pipe 61 is screwed into an internal thread pipe 71, the first connector 3 is fixed and fixed at a second connector 4, the electrically connecting position of the first cable body 1 and the second cable body 2 is wrapped, the external thread pipe 61 is screwed into the internal thread pipe 71, a fixing ring 63 and a fixing ring 73 are mutually abutted, after the fixing ring 73 pushes two fixing rods 62 at one side of the fixing ring 63 into the first connector 3, the two fixing rods 62 push two limit blocks 95 inside the first connector 3, the pressure spring 94 is contracted to generate elastic force, the side wall of the limiting block 95 is enabled to extrude the levers 91, the two levers 91 are enabled to rotate in the first connecting head 3, one side of one lever 91 is enabled to extrude the fixing block 92 on the sealing ring 93, the other lever 91 is enabled to extrude the fixing block 92 on the sealing disc 96, the sealing ring 93 slides downwards for a certain distance, the sealing disc 96 slides upwards for a certain distance, the sealing ring 93 and the sealing disc 96 are enabled to approach each other to extrude the first cable body 1, the first connecting head 3 is fixed outside the first cable body 1, meanwhile, the connecting position of the first connecting head 3 and the first cable body 1 is sealed, foreign objects are prevented from entering the first connecting head 3, the two sliding rods 81 in the first connecting head 3 are pushed when the two levers 91 rotate in the first connecting head 3, the two tension springs 94 are enabled to contract to generate elastic force, and the two sliding rods 81 slide out of the first connecting head, fixing the first connector 3 in a perforated hole in the wall to fix the first cable body 1. according to the above principle, the fixing ring 63 pushes the two fixing posts 72 on one side of the fixing ring 73 into the second connector 4, and the two fixing posts push the two levers in the second connector to make the sealing disc 96 and the sealing ring 93 in the second connector 4 approach each other to extrude the second cable body 2, so that the second connector 4 is fixed on the second cable body 2 and sealed at the same time, and at the same time, the two sliding posts 81 in the second connector 4 slide out to extrude the hole in the wall, so that the second cable body 2 on the second connector 3 is supported and fixed, further preventing the first cable body 1 and the second cable body 2 from being separated, when the first cable body 1 and the second cable body 2 need to be disassembled, the first connector 1 is rotated to be separated from the second connector 2 by rotating the two nuts 5, the limiting block 95 is pushed back to the original position through the elastic force of the pressure spring 94, the lever 91 is reset, the sealing ring 93 and the sealing disc 96 are restored to the original position, the sliding rod 81 is restored to the original position and slides into the first connector 3 and the second connector 4 through the elastic force of the tension spring 82, the first connector 3 and the second connector 4 can be separated, and the first cable body 1 and the second cable body 2 can be separated.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.