CN216530415U

CN216530415U - Cable accessory

Info

Publication number: CN216530415U
Application number: CN202122999990.2U
Authority: CN
Inventors: 龚卫兵
Original assignee: Wuhan Arp Intelligent Electric Co ltd
Current assignee: Wuhan Arp Intelligent Electric Co ltd
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-13
Anticipated expiration: 2031-12-01

Abstract

The utility model relates to the technical field of cable accessories, in particular to a cable accessory, wherein a columnar slot is formed in the middle of one end of a connecting piece, a pair of clamping blocks are connected in the slot in a sliding mode, a threaded rod penetrates through the pair of clamping blocks vertically and is connected with the clamping blocks in a rotating mode, the upper side and the lower side of the middle of the side face of the threaded rod are respectively connected with the upper clamping block and the lower clamping block in a threaded mode in opposite rotating directions, and an external connecting piece is arranged at the other end of the connecting piece. According to the utility model, the inside of the power distribution cabinet is connected with the external cable through the cable accessory, the inside of the power distribution cabinet can be pre-wired, the external connection can be flexibly accessed from different directions, and the cable can be installed in the power distribution cabinet without bending through the matched fixed connection among the structures such as the rotating rod, the inserting rod, the external connecting piece and the like, so that the installation of the cable is more convenient.

Description

Cable accessory

Technical Field

The utility model relates to the technical field of cable accessories, in particular to a cable accessory.

Background

The power cable accessory is a product for connecting a cable with a power transmission and distribution line and related power distribution devices, generally refers to the intermediate connection and terminal connection of various cables in the cable line, and forms a power transmission network together with the cable; the cable accessories can recover the performance of the cable and ensure the extension of the cable length and the connection of the terminal mainly according to the characteristics of the cable structure.

When fixing cable and block terminal, because there is small difference in the length of cable to the length of block terminal, the terminal position of block terminal is different, make the cable mounting need buckle when the block terminal is inside, because the hardness of cable is higher, make harder cable mounting comparatively difficult when in the block terminal, and because there is the difference in the thickness of cable, cable accessories installs the back to thinner cable, appear becoming flexible easily, make and be connected failure between cable accessories and the cable, thereby make cable accessories's practicality lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cable accessory to solve the problems that a cable provided by the background technology is difficult to install in a distribution box and the practicability of the cable accessory is low.

In order to achieve the purpose, the utility model provides the following technical scheme: the cable accessory is characterized in that: the clamping device is a connecting piece internally provided with a cylindrical clamping piece, the outer end of the clamping piece is exposed at one side of the connecting piece, the clamping piece is arranged in a slot of the connecting piece, and the clamping piece is divided into a pair of clamping blocks along an equal dividing plane passing through an axis;

the screw rod is connected with the connecting piece and the pair of clamping blocks in a threaded manner by eccentrically penetrating the connecting piece and the pair of clamping blocks in a manner of being vertical to the bisection plane, and the upper side and the lower side of the middle part of the screw rod are respectively in threaded connection with the two clamping blocks; a rectangular groove is formed in the middle of the other end of the connecting piece relative to the inserting groove, a round groove is formed in the rectangular groove in a penetrating mode parallel to the threaded rod, a rotating rod is connected in the round groove in a rotating mode, an outer connecting piece is fixedly sleeved in the middle of the rotating rod and can rotate around the axis of the rotating rod, the inner side surface of the outer connecting piece is an arc surface abutted against the clamping piece, the outer connecting piece partially extends out of the connecting piece, and a through groove perpendicular to the axial direction of the clamping piece is formed in the outer portion of the outer connecting piece;

the outer surface of the connecting piece penetrates through the inner wall of the circular groove, an elongated groove is formed in the direction perpendicular to the axial direction of the circular groove, a plurality of grooves are formed in the rotating rod in the circumferential direction corresponding to the height of the elongated groove, an inserting rod with the outer end extending out of the connecting piece is movably embedded in the elongated groove, and the inner end of the inserting rod is movably embedded in the grooves.

Preferably, the outer end fixedly connected with dog of inserted bar, the inserted bar has cup jointed the extension spring in the outside of connecting piece, the both ends of extension spring respectively with the lateral wall fixed connection of dog and connecting piece.

Preferably, the number of the grooves is 4-12.

The threaded rod penetrates through the side wall of the connecting piece at the position of the connecting piece, and an axially elongated waist circular hole is formed in the side wall of the connecting piece.

The two sides of the threaded rod are opposite to the screwing direction of the threads connected with the upper clamping block and the lower clamping block, and the top end of the threaded rod extends to the outer side of the connecting piece.

Preferably, the outer end parts of the inner side walls of the two clamping blocks are fixedly connected with pressing strips, and the opposite sides of the two pressing strips are both concave cambered surfaces.

The inner wall of the slot is provided with a sliding groove, the corresponding positions of the two clamping blocks are fixedly connected with sliding blocks, and the sliding blocks are embedded into the sliding groove and axially connected in a sliding manner.

Preferably, a contact spring is fixedly arranged on the end face of the inner wall of the sliding groove, and the two clamping blocks are abutted against the outer connecting piece.

By way of example, the outer surface of the outer part of the outer link, perpendicular to the through slot, is provided with a screw that penetrates into the through slot.

Preferably, both sides of the axis between the two clamping blocks are fixedly connected with cylindrical springs.

The connecting piece, the threaded rod and the stop block are made of insulating materials, and the external connecting piece and the clamping piece are made of conducting materials.

Compared with the prior art, the utility model has the beneficial effects that: the utility model solves the problem that the cable moves to the inside of the distribution box through the cable accessory, the inside of the distribution box can be wired in a factory in advance, and the external cable can be connected on the spot. The stopper drives the inserted bar to move outwards, the outer connecting piece can rotate freely to a proper angle, the inserted bar is inserted into the corresponding groove internal fixation after the position is determined by the outer connecting piece, and the cable in the through groove is fixed through the screw by matching between the structures such as the rotating rod, the inserted bar and the outer connecting piece, so that the cable can be installed on the cable without bending inside the distribution box, the internal stress of the cable is eliminated, and the installation of the cable is convenient.

According to the utility model, the round rod drives the threaded rod to rotate, so that the threaded rod drives the upper clamping block and the lower clamping block to open towards two sides on the inner wall of the slot, and the clamping blocks drive the pressing strips to fix the internal cable through the cooperation of the structures such as the threaded rod, the clamping blocks and the slot, so that the cable and the cable accessory are not loosened after being installed, and the operation is rapid and convenient.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of a block connector of the present invention;

fig. 3 is a sectional view showing a partial three-dimensional structure of the interior of the present invention.

In the figure: 1. a connecting member; 2. a slot; 3. a clamping block; 4. a cylindrical spring; 5. a threaded rod; 6. a rectangular groove; 7. a circular groove; 8. rotating the rod; 9. an external connecting piece; 10. mounting blocks; 11. a through groove; 12. a long groove; 13. a groove; 14. inserting a rod; 15. a stopper; 16. a tension spring 17, a clamping piece; 18. layering; 19. a screw; 20. a contact spring; 21. a chute.

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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution:

the cable accessory is used for facilitating the access of an external cable in the power distribution cabinet. As shown in fig. 2, the connector 1 is integrally provided with a cylindrical clamping member 17 therein, only one end of the clamping member 17 is exposed to the outside of the connector 1, the clamping member 17 is arranged in the slot 2 of the connector 1, the clamping member 17 is divided into a pair of clamping blocks 3 along an bisection plane passing through the axis, a cylindrical cavity is surrounded by the pair of clamping blocks 3 and used for accommodating the end portion of the connected cable, the bisection plane is a horizontal plane as shown in the figure, and the following description is performed in a reference state as shown in fig. 2.

As an embodiment, the outer end portions of the inner side walls of the two clamping blocks 3 are fixedly connected with pressing strips 18, and the opposite sides of the two pressing strips 18 are both concave cambered surfaces.

As an example of stabilizing the position of the pair of blocks, a cylindrical spring 4 is fixedly connected to both sides of the axis between the two blocks 3. The stable pair of clamping blocks 3 facilitates the operation of the threaded rod 5.

The clamping piece 17 body can be provided with a columnar cavity at one side, a threaded rod 5 is connected to the body perpendicular to the bisecting plane through a pair of clamping blocks 3 eccentrically, at least one end of the threaded rod 5 penetrates through the surface of the connecting piece 1, and the threaded rod 5 penetrates through the upper surface of the connecting piece 1 in fig. 2. The threaded rod 5 in fig. 2 passes through a partial cavity in the holding part 17 or does not pass through the cavity, the holding part 17 is provided with a connecting part extending to one side on one side, and the threaded rod 5 can pass through the connecting part but not pass through the cavity. The upper side and the lower side of the middle part of the threaded rod 5 are respectively in threaded connection with the two clamping blocks 3, and the thread turning directions of the upper side and the lower side are opposite, so when the threaded rod 5 rotates, the two clamping blocks 3 can be simultaneously separated or simultaneously folded, and the operation of clamping a cable by a cavity between the two clamping blocks 3 is simple and easy.

The slot 2 is arranged at one end of the connecting piece 1, a rectangular groove 6 is formed in the middle of the other end of the connecting piece 1 corresponding to the slot 2, a round groove 7 is formed in the rectangular groove 6 in a penetrating mode parallel to the threaded rod 5, and the round groove 7 can penetrate through the connecting piece 1 or does not penetrate through the connecting piece 1. As shown in fig. 3, the rotation of circular groove 7 is connected with dwang 8, the middle part of dwang 8 is fixed or an organic whole is connected with outer even 9, outer even 9 can revolute the axle center of moving pole 8 and rotate, and the inboard surface of outer even 9 is for leaning on the evagination arc surface of holder 17 for when outer even 9 revolutes the axle center of moving pole 8 and rotates, the arc surface of outer even 9 leans on the lateral wall at connecting piece 1 with isobaric all the time. The external connecting piece 9 partially extends out of the connecting piece 1, a through groove 11 perpendicular to the axial direction of the clamping piece 17 is arranged on the external part of the external connecting piece 9, and the through groove 11 visible in figure 3 is vertically arranged.

As shown in fig. 2, an elongated slot 12 is formed through the outer surface of the connecting member 1 to the inner wall of the circular slot 7 and perpendicular to the axial direction of the circular slot 7, as shown in fig. 3, an inserted link 14 having an outer end extending out of the connecting member 1 is movably embedded in the elongated slot 12, a stopper 15 having a diameter larger than that of the elongated slot 12 is disposed at the outer end of the inserted

link

14, 4 to 12 grooves 13 are circumferentially formed in the rotating lever 8 corresponding to the height of the elongated slot 12, and the inner end of the inserted link 14 is movably embedded in the grooves 13. The inserted link 14 is sleeved with a tension spring 16 outside the connecting piece 1, and two ends of the tension spring 16 are respectively fixedly connected with the stop block 15 and the outer side wall of the connecting piece 1. When the plug rod 14 is partially inserted into the groove 13 when no external force is applied, the outer link 9 cannot rotate, and when the plug rod 14 is pulled out of the groove 13, the outer link 9 can rotate freely.

The inner wall of the slot 2 is provided with a sliding groove 21 for axial sliding, the two clamping blocks 3 are fixedly connected with sliding blocks (not shown in the figure) at corresponding positions, the two sides of the two clamping blocks 3 are respectively provided with a sliding block, the sliding blocks are embedded into the sliding groove 21, and the sliding blocks are embedded into the sliding groove 21 and axially connected in a sliding manner. So that the clamping block 3 can not be separated from the slot 2.

In order to make the outer connecting piece 9 and the clamping piece 17 reliably contact, a contact spring 20 is fixedly arranged on the end surface of the inner wall of the sliding groove 21, and as shown in fig. 3, two clamping blocks 3 are abutted against the outer connecting piece 9 on the inner side wall of the contact spring 20 adjacent to the outer end.

In order to match the sliding state of the two clamping blocks 3, so that the clamping blocks 3 are in good contact with the external connecting piece 9, the side wall of the connecting piece 1, where the threaded rod 5 penetrates out of the connecting piece 1, is provided with an axially elongated waist circular hole.

As an example of the external cable connection structure, an outer surface of the outer portion of the outer link 9, perpendicular to the through groove 11, is provided with a screw 19 penetrating to the through groove 11. The screw 19 can fix the cable passing through the through slot 11. For the condition that an electric connection end is arranged in the power distribution cabinet, the through groove 11 is directly fixed through a bolt, and the two clamping blocks 3 are used for connecting an external cable.

The connecting piece 1, the threaded rod 5 and the stop block 15 are made of insulating materials such as nylon and plastics, and the external connecting piece 9 and the clamping piece 17 are made of metal conducting materials. The threaded rod 5 may also be made of an insulating material.

When the cable accessory is used for fixing a cable, the working process is as follows:

as shown in fig. 1, fig. 2 and fig. 3, the wiring inside the power distribution cabinet can be completed in advance in a factory, so as to improve the efficiency and reduce the production errors. The cabinet is then transported to the site and the cable at the junction between the inside and outside of the cabinet is fixedly connected to the clamp 17 or the outer link 9 of the connector 1. And the external cable is fixedly connected with the other connecting part. Because the connecting directions of the two connecting parts of the connecting piece 1, namely the clamping piece 17 and the external connecting piece 9, are different, and the external connecting piece 9 can rotate freely, convenience is brought to the connection of cables with higher hardness.

Another kind of usage is, will with the fixed inside of accomplishing of cable accessories of cable removal to the switch board, drive inserted bar 14 with dog 15 and remove for inserted bar 14 removes the spacing state to dwang 8, drives outer even 9 and installation piece 10 through dwang 8 and rotates to being parallel with the department of connecing of block terminal, and inserted bar 14 imbeds to the recess 13 in the back of the release of hand, locks the spacing state to dwang 8. The screw cap 19 and the through groove 11 are fastened or fixed with the power connection position of the distribution box through screws, so that the cable can be installed without bending inside the distribution box, and the cable is convenient to install.

Through inserting the one end of cable in the left slot 2 of connecting piece 1, rotatory round bar drives threaded rod 5 and rotates during the connection, because threaded rod 5 with on, the screw thread of lower clamp splice 3 is revolved to opposite, make two clamp splice 3 open to both sides simultaneously in the side of slot 2 inner wall about can driving when threaded rod 5 rotates, insert in the slot 2 back, two clamp splice 3 are closed to the centre about driving through reverse rotation threaded rod 5, make clamp splice 3 drive the layering and fix the cable, make cable and cable accessories install and can not appear becoming flexible after accomplishing. Under the action of the compression spring 20, the clamping block 3 is compressed towards the outer connecting piece 9, and good electric contact is kept.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. An electrical cable accessory characterized by: the clamping device is a connecting piece (1) internally provided with a cylindrical clamping piece (17), the outer end of the clamping piece (17) is exposed at one side of the connecting piece (1), the clamping piece (17) is arranged in a slot (2) of the connecting piece (1), and the clamping piece (17) is divided into a pair of clamping blocks (3) along an bisector plane passing through an axis;

the screw rod (5) is connected with the connecting piece (1) and the pair of clamping blocks (3) in a threaded manner in a manner of eccentrically penetrating the connecting piece perpendicular to the bisection plane, and the upper side and the lower side of the middle part of the screw rod (5) are respectively in threaded connection with the two clamping blocks (3); a rectangular groove (6) is formed in the middle of the other end of the connecting piece (1) relative to the inserting groove (2), a round groove (7) is formed in the way that the threaded rod (5) penetrates through the rectangular groove (6) in a parallel mode, a rotating rod (8) is connected in the round groove (7) in a rotating mode, an outer connecting piece (9) is fixedly sleeved in the middle of the rotating rod (8), the outer connecting piece (9) can rotate around the axis of the rotating rod (8), the inner side surface of the outer connecting piece (9) is an arc surface abutting against the clamping piece (17), part of the outer connecting piece (9) extends out of the connecting piece (1), and a through groove (11) perpendicular to the axial direction of the clamping piece (17) is formed in the outer portion of the outer connecting piece (9);

the outer surface of the connecting piece (1) penetrates through the inner wall of the circular groove (7), a long groove (12) is formed in the direction perpendicular to the axial direction of the circular groove (7), the rotating rod (8) is circumferentially provided with a plurality of grooves (13) corresponding to the height of the long groove (12), an inserting rod (14) with the outer end extending out of the connecting piece (1) is movably embedded in the long groove (12), and the inner end of the inserting rod (14) is movably embedded in the groove (13).

2. The cable accessory of claim 1, wherein: the outer end of the inserted link (14) is fixedly connected with a stop block (15), the inserted link (14) is sleeved with a tension spring (16) outside the connecting piece (1), and two ends of the tension spring (16) are respectively fixedly connected with the stop block (15) and the outer side wall of the connecting piece (1); the number of the grooves (13) is 4-12.

3. The cable accessory of claim 1, wherein: the threaded rod (5) penetrates through the side wall of the connecting piece (1) at the position of the connecting piece (1) and is provided with an axially elongated waist circular hole.

4. The cable accessory of claim 1, wherein: the two sides of the threaded rod (5) are opposite to the thread turning direction connected with the upper clamping block and the lower clamping block (3), and the top end of the threaded rod (5) extends to the outer side of the connecting piece (1).

5. The cable accessory of claim 1, wherein: the outer end parts of the inner side walls of the two clamping blocks (3) are fixedly connected with pressing strips (18), and the opposite sides of the two pressing strips (18) are concave cambered surfaces.

6. The cable accessory of claim 1, wherein: the inner wall of the slot (2) is provided with a sliding groove (21), the two clamping blocks (3) are fixedly connected with sliding blocks at corresponding positions, and the sliding blocks are embedded into the sliding groove (21) and are in axial sliding connection.

7. The cable accessory of claim 6, wherein: the end face of the inner wall of the sliding groove (21) is fixedly provided with a contact spring (20) which abuts against the two clamping blocks (3) through the outer connecting piece (9).

8. The cable accessory of claim 1, wherein: and a screw (19) penetrating through the through groove (11) is arranged on the outer surface of the outer part of the outer connecting piece (9) and is vertical to the through groove (11).

9. The cable accessory of claim 1, wherein: two sides of the axis between the two clamping blocks (3) are fixedly connected with cylindrical springs (4).

10. The cable accessory of claim 2, wherein: the connecting piece (1), the threaded rod (5) and the stop block (15) are made of insulating materials, and the external connecting piece (9) and the clamping piece (17) are made of conducting materials.