Connection structure, separable cable connector and installation method thereof
Technical Field
The present disclosure relates to a cable connector, and more particularly, to a detachable cable connector.
Background
A separable cable connector is used for connection between a device outlet interface and a cable. At present, a separable cable connector commonly used in the market comprises an insulation body, a wiring terminal, a connecting bolt, an insulation plug and a sealing cap. The insulating body is provided with a plug hole, a mounting hole and a terminal hole, wherein the plug hole is arranged at one end of the insulating body and used for being plugged with an equipment outlet interface, and the insulating plug is arranged in the mounting hole.
However, when the separable cable connector is installed, the connecting bolt passes through the through-hole of the terminal block and is locked to the equipment outlet port. During construction, the connecting bolt is fastened to reach a specified moment, so that the installation can be ensured. However, the construction tool is limited, and under the condition that a torque wrench is not provided, a constructor cannot judge that the fastening force meets the required requirement, the fact that the connecting bolt is not tightly screwed to cause poor lamination of the connecting bolt and an equipment outlet interface frequently occurs, after the equipment is electrified and operates for a period of time, accidents are caused by overlarge contact resistance and heat, the use safety coefficient of the separable cable connector is reduced, and the reliability of power supply and distribution of a power system is further affected.
Disclosure of Invention
The invention mainly aims to provide a connecting structure and a separable cable connector which can be easily connected with an equipment outlet interface in a locking way, can ensure the connection reliability and are simple to install.
In order to solve the technical problems, the invention provides a connecting structure for connecting a connecting screw hole of a component, which comprises a moment connecting rod, a torsion bolt and a double-head moment bolt. The front end of the moment connecting rod is provided with a threaded rod [ yinlei1], and the rear end of the moment connecting rod is provided with a connecting hole. The front end of the torsion bolt is provided with a moment limiting part, the connecting part of the moment limiting part is narrow and thin, and the rear end of the torsion bolt is provided with a torsion cap. The torque bolt is inserted into the connecting hole of the torque connecting rod from the front end, the threaded rod of the torque connecting rod penetrates through the through hole of the connecting terminal and is installed into the outgoing line connecting screw hole, the torque bolt is broken at the narrow and thin connecting position when being twisted to the limit value of the torque limit value part, the torque limit value part is separated from the torque bolt, and the torque bolt is detached from the connecting hole at the rear end of the torque connecting rod. The torque bolt is provided with threads, the rear end of the torque bolt is provided with a torque part, the connecting part of the torque part is narrow and thin, the front end of the torque bolt is arranged in a connecting hole of the torque connecting rod, and the torque part breaks at the connecting part of the narrow and thin shape and is separated from the torque bolt when a certain torque is twisted.
In order to solve the technical problems, the invention provides a separable cable connector which is used for connecting equipment outlet interfaces with cables, wherein the equipment outlet interfaces are provided with outlet connecting screw holes, and the separable cable connector comprises a front plug, a rear plug, a moment connecting rod, a torsion bolt, a double-head moment bolt, two wiring terminals and an insulating plug. The front plug and the rear plug are in T-shaped pipes, the front end of the front plug is provided with a front plug inserting hole, the rear end of the front plug is provided with a front plug installing hole, and the lower end of the front plug is provided with a front plug terminal hole. The front plug-in hole, the front plug-in mounting hole and the front plug-in terminal hole are communicated with each other. The front plug-in hole is used for being plugged with the equipment outlet interface; the front plug mounting hole is used for mounting the rear plug front end. The front end of the rear plug is provided with a rear plug inserting hole, the rear end of the rear plug is provided with a rear plug installing hole, and the lower end of the rear plug is provided with a rear plug terminal hole. The rear plug insertion hole, the rear plug mounting hole and the rear plug terminal hole are communicated with each other. The rear plug mounting hole is used for mounting an insulating plug or being used as a rear plug expansion mounting hole, and one connecting terminal extends into the front plug terminal hole and is plugged into the front plug plugging hole and the communication position between the front plug mounting holes. The binding post has line ball hole and through-hole, and the through-hole is located the intercommunication department between preceding plug hole, the preceding plug mounting hole. The front end of the torque connecting rod is provided with a threaded rod, the rear end of the torque connecting rod is provided with a connecting hole, the front end of the torque bolt is provided with a torque limiting part, the connecting part of the torque limiting part is narrow, the rear end of the torque bolt is provided with a torsion cap, and the torque bolt is inserted into the connecting hole of the torque connecting rod from the front end. The threaded rod of the torque connecting rod penetrates through the through hole of the connecting terminal and is installed into the outgoing line connecting screw hole, the torque bolt is broken at the narrow and thin connecting position when the torque bolt is twisted to the limit value of the torque limit value part, the torque limit value part is separated from the torque bolt, and the torque bolt is detached from the connecting hole at the rear end of the torque connecting rod. The torque bolt is provided with threads, the rear end of the torque bolt is provided with a torque part, the connecting part of the torque part is narrow and thin, the front end of the torque bolt is arranged in a connecting hole of the torque connecting rod, and the torque part breaks at the connecting part of the narrow and thin shape and is separated from the torque bolt when a certain torque is twisted.
Preferably, the stud bolt has a lead-in portion at a front end thereof, the lead-in portion being narrower than the stud bolt.
Preferably, the stud is further provided with a protrusion
Preferably, the rear end of the moment connecting rod is provided with a groove.
Preferably, the front end of the insulating plug is provided with a plug hole, and the plug hole is used for accommodating the rear end of the stud torque bolt.
The invention also provides an installation method of the separable cable connector, which comprises the following steps:
firstly, one of the wiring terminals stretches into the front plug terminal hole and is plugged into the communication position between the front plug hole and the front plug mounting hole;
then, the front plug is sleeved on the equipment outlet interface, wherein the equipment outlet interface is accommodated in the front plug hole;
then, the threaded rod of the moment connecting rod passes through the through hole of the connecting terminal and is installed into the wire outlet connecting screw hole, the torque bolt breaks at the narrow and thin connecting position when the torque bolt is twisted to the limit value of the moment limit value part, the moment limit value part is separated from the torque bolt, and the torque bolt is detached from the connecting hole at the rear end of the moment connecting rod;
then, the front end of the rear plug is inserted into the front plug mounting hole, wherein the rear part of the moment connecting rod is accommodated in the plug hole of the rear plug;
then, the front end of the stud torque bolt passes through the through hole of the other connecting terminal and is arranged in the connecting hole of the torque connecting rod, wherein the torque part breaks at the narrow and thin connecting part to be separated from the stud torque bolt when a certain torque is twisted;
finally, the insulating plug is installed in the rear plug installation hole.
As described above, when the separable cable connector is installed, the connecting terminal extends from the front plug terminal hole and is plugged into the communication position between the front plug hole and the front plug installation hole, the threaded rod of the moment connecting rod penetrates through the through hole of the connecting terminal and is installed into the wire outlet connection screw hole, the torsion bolt breaks at the narrow and thin connection position when the torsion bolt is twisted to the limit value of the moment limit value part, the moment limit value part is separated from the torsion bolt, the torsion bolt is detached from the connection hole at the rear end of the moment connecting rod, the front end of the double-headed moment bolt is installed in the connection hole of the moment connecting rod, the torque part breaks at the narrow and thin connection position when the torsion bolt is twisted to a certain moment, the poor contact between the bolt and the wire outlet connection screw hole in the prior art can be avoided, the installation is easy, the installation position among the wire outlet connection screw hole, the moment connecting rod and the double-headed moment bolt is ensured, the connection reliability is further ensured, and the safety factor of the separable cable connector and the power supply and distribution reliability of a power system are improved.
Drawings
FIG. 1 is a schematic exploded view of a separable cable connector of the present invention, a terminal having been mounted on a front plug, partially cut away for ease of illustration;
FIG. 2 is a schematic view of the mounting structure of the detachable cable connector of FIG. 1, with the front plug mounted to the equipment outlet, partially cut away for ease of illustration;
fig. 3 is a schematic view of the installation structure of the separable cable connector shown in fig. 1, in which a threaded rod of the torque connecting rod passes through a through hole of the connecting terminal and is installed in an outgoing line connecting screw hole, and the torque bolt is separated into two parts [ yinlei2] after being stressed from the connecting hole at the rear end of the torque connecting rod to reach the torque, so that the separable cable connector is conveniently displayed and partially cut.
Fig. 4 is a schematic view of the detachable cable connector shown in fig. 1, in which the front end of the rear insert has been mounted in the front insert mounting hole, and is partially cut away for convenience of illustration.
Fig. 5 is a schematic view of the installation structure of the detachable cable connector shown in fig. 1, wherein the front end of the stud is installed in the connection hole of the torque connection rod, and the front end of the stud is partially cut away for convenience of illustration.
Fig. 6 is a schematic view of the mounting structure of the separable cable connector of fig. 1, with the torque portion of the stud bolt disengaged from the stud bolt, and partially cut away for ease of illustration.
FIG. 7 is a schematic view of the detachable cable connector of FIG. 1 after installation, shown partially cut away for ease of illustration;
fig. 8 is a schematic diagram of an assembly structure of the torque connecting rod and the torque bolt of the separable cable connector shown in fig. 1.
Fig. 9 is a schematic sectional view of the separable cable connector of fig. 1 after the moment connection rod and the torsion bolt are assembled.
Fig. 10 is a schematic cross-sectional view of the torque limiting portion of the torsion bolt of the separable cable connector shown in fig. 1 after being separated from the torque connecting rod.
FIG. 11 is a schematic cross-sectional view of a stud of the separable cable connector of FIG. 1.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, for convenience of explanation, the left direction of the paper surface is the front, and the right direction is the rear.
Referring to fig. 1, 2, 3 and 4, the detachable cable connector of the present invention is used for connection between a device outlet 10 and a cable 20, the device outlet 10 having an outlet connection screw hole 11. The separable cable connector includes a front plug 30, a rear plug 40, a torque connecting rod 50, a torque bolt 60, a stud bolt 70, two terminals 80, and an insulating plug 90.
The front plug 30 and the rear plug 40 are in a T shape, the front end of the front plug 30 is provided with a front plug inserting hole 31, the rear end of the front plug 30 is provided with a front plug installing hole 32, and the lower end of the front plug 30 is provided with a front plug terminal hole 33. The front plug insertion hole 31, the front plug mounting hole 32, and the front plug terminal hole 33 communicate with each other. The front plug-in hole 31 is used for being plugged with the equipment outlet interface 10; the front insert mounting hole 32 is used to mount the front end of the rear insert 40. The rear plug 40 has a rear plug insertion hole 41 at the front end, a rear plug mounting hole 42 at the rear end, and a rear plug terminal hole 43 at the lower end of the rear plug 40. The rear plug insertion hole 41, the rear plug mounting hole 42, and the rear plug terminal hole 43 communicate with each other. The rear plug mounting holes 42 are used to mount the insulating plugs 90 or as extended mounting holes for rear plugs.
The connection terminal 80 has one of a wire pressing hole 81 yinlei3 and a through hole 82, and the connection terminal 80 is inserted from the front plug terminal hole 33 and plugged into the communication between the front plug plugging hole 31 and the front plug mounting hole 32. The through hole 82 yinlei4 is located at the communication between the front plug hole 31 and the front plug mounting hole 32.
The insulating plug 90 has a plug hole 91 at the front end, and the plug hole 91 is used to accommodate the rear end of the stud 70.
Referring to fig. 8, 9 and 10, the moment connecting rod 50 has a threaded rod 51 at a front end thereof, and a connecting hole 52 at a rear end thereof. The front end of the torsion bolt 60 is provided with a moment limiting part 61, the connecting part of the moment limiting part 61 is narrow, the rear end of the torsion bolt 60 is provided with a torsion cap 62, and the torsion bolt 60 is inserted into the connecting hole 52 of the moment connecting rod 50 from the front end. The threaded rod 51 of the moment connecting rod 50 is installed into the wire connecting screw hole 11 through the through hole 82[ yinlei5] of the connection terminal 80, the torsion bolt 60 is broken at the narrow and thin connection when being twisted to the limit value of the moment limit value portion 61, the moment limit value portion 61 is separated from the torsion bolt 60, and the torsion bolt 60 is detached from the connection hole 52 at the rear end of the moment connecting rod 50.
Referring to fig. 11, the stud 70 has a thread, the rear end of the stud 70 has a torque portion 71, the junction of the torque portion is narrow, the front end of the stud 70 is mounted in the connection hole 52 of the torque connecting rod 50, and the torque portion 71 breaks at the narrow junction and is separated from the stud 70 when a certain torque is applied.
As a further improvement of the present embodiment, the stud bolt 70 has an introduction portion 72 at the front end, and the introduction portion 72 is narrower than the stud bolt 70. The lead-in portion 72 serves as a guide for facilitating insertion connection when the stud 70 is mounted to the connection hole 52 of the moment connecting rod 50.
As a further improvement of the present embodiment, the moment connecting rod 50 is provided with a groove 53 at the rear end. The recess 53 may be used for disassembly.
The invention also provides an installation method of the separable cable connector, which comprises the following steps:
firstly, one of the wiring terminals 80 is inserted into the front plug terminal hole 33 and plugged into the communication position between the front plug hole 31 and the front plug mounting hole 32;
then, the front plug 30 is sleeved on the equipment outlet interface 10, wherein the equipment outlet interface 10 is accommodated in the front plug inserting hole 31;
then, the threaded rod 51 of the moment connecting rod 50 is inserted into the wire outlet connecting screw hole 11 through the through hole 82 of the connecting terminal 80, the torsion bolt 60 is broken at the narrow and thin connection part when the torsion bolt 60 is twisted to the limit value of the moment limit value part 61, the moment limit value part 61 is separated from the torsion bolt 60, and the torsion bolt 60 is detached from the connecting hole 52 at the rear end of the moment connecting rod 50;
then, the front end of the rear plug 40 is inserted into the front plug mounting hole 33, wherein the rear part of the moment connecting rod 50 is accommodated in the plug hole 41 of the rear plug 40;
then, the front end of the stud bolt 70 is inserted through the through hole 82 of the other terminal 80 and is mounted in the connecting hole 52 of the moment connecting rod 50, wherein the torque portion 72 breaks at the narrow and thin connection and is separated from the stud bolt 70 when a certain moment is twisted;
finally, the insulating plug 90 is fitted into the rear plug mounting hole 42 of the rear plug 40.
Referring to fig. 5, 6 and 7, when the separable cable connector of the present invention is installed, the connection terminal 80 extends from the front insertion terminal hole 33 and is inserted into the connection position between the front insertion hole 31 and the front insertion installation hole 32, the threaded rod 51 of the torque connection rod 50 is installed into the wire connection screw hole 11 through the through hole 82 of the connection terminal 80, the torque bolt 60 breaks at the narrow and thin connection position when being twisted to the limit value of the torque limit value portion 61, the torque limit value portion 61 is separated from the torque bolt 60, the torque bolt 60 is detached from the connection hole 52 at the rear end of the torque connection rod 50, the front end of the torque bolt 70 is installed in the connection hole 52 of the torque connection rod 50, and the torque portion 71 breaks at the narrow and thin connection position when being twisted to a certain torque, so that poor contact between the bolt and the wire connection screw hole in the prior art can be avoided, the installation is simple and easy, and the connection reliability of the wire connection screw hole 10, the torque connection rod 50 and the torque bolt 70 can be ensured, and the reliability of the connection of the separable cable connector can be further ensured.
As a further improvement of the present embodiment, the stud 70 is further provided with a protrusion 73, and the protrusion 73 can press the stud 70 and the terminal 80 together, and can also be used as a tool for disassembly during disassembly.
The foregoing description of the preferred embodiments of the present invention should not be construed as limiting the scope of the invention, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).