CN109921204B - Terminal structure suitable for distribution terminal detects - Google Patents
Terminal structure suitable for distribution terminal detects Download PDFInfo
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- CN109921204B CN109921204B CN201910265577.8A CN201910265577A CN109921204B CN 109921204 B CN109921204 B CN 109921204B CN 201910265577 A CN201910265577 A CN 201910265577A CN 109921204 B CN109921204 B CN 109921204B
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
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Abstract
The invention discloses a binding post structure suitable for detecting a power distribution terminal, which comprises a shell, a connecting assembly, an adjusting assembly and a rotating assembly, wherein the shell comprises a first end and a second end, and a containing space is formed inside the shell; the connecting assembly comprises an inner connecting section and an outer connecting section, the inner connecting section is positioned in the accommodating space, and the outer connecting section penetrates out of the through hole on the first end and extends out of the accommodating space; the rotating assembly comprises a clamping part and a stress part, the rotating assembly is hinged to the inner side wall of the shell through a hinge point on the rotating assembly, the adjusting assembly comprises a matching part and a connecting part, the matching part penetrates through an upper chute of the clamping part and can slide relatively, the inner end of the connecting part is fixed with the matching part, and the outer end of the connecting part penetrates out of the second end and is connected with the operating part. The wire connecting device omits complicated wiring, winding and clamping steps, omits the manual wire stripping process, ensures that the wiring is very simple and convenient, enables a user to directly insert wires to realize the connection of the wires, can ensure the stability of the connection, and ensures the use safety of the binding posts.
Description
Technical Field
The invention relates to a power distribution terminal, in particular to a binding post structure suitable for detecting the power distribution terminal, and belongs to the technical field of power electronic equipment.
Background
The distribution automation is used as an important component of the intelligent power grid, so that the fault of the distribution network can be automatically and rapidly positioned and isolated, and a user is ensured to be quickly electrified. As a distribution network automation carrier, a distribution terminal is a device with on-site monitoring and control functions, and reliability of the distribution terminal is critical to feeder automation. In order to ensure that feeder automation operates properly in accordance with predetermined logic, the distribution terminals must be rigorously inspected prior to commissioning.
The existing power distribution terminal detection method mainly relies on manual detection by a person, the wire end of the power distribution terminal needs to be stripped for a longer length by a tester before testing, and a binding post fixed to a tester needs to be installed in an auxiliary mode by means of tools such as screwdrivers and pliers. Since most cases require screwing, the post terminal after long-term use is difficult to unscrew and replace due to the possibility of rust. Therefore, the defects of inconvenient operation, time and labor consumption exist in the early and later stages of wiring.
Disclosure of Invention
The invention aims to solve the technical problems that: the wiring terminal structure suitable for detecting the power distribution terminal is provided, wiring operation is greatly facilitated, wiring can be completed by directly inserting an electric wire, and the problem existing in the wiring terminal structure is effectively solved.
The technical scheme of the invention is as follows: the utility model provides a terminal structure suitable for distribution terminal detects, it includes casing, coupling assembling, adjusting part and rotating assembly, the casing includes first end and second end, forms the accommodation space inside; the connecting assembly comprises an inner connecting section and an outer connecting section, the inner connecting section is positioned in the accommodating space, and the outer connecting section penetrates out of the through hole on the first end and extends out of the accommodating space; the rotating assembly comprises clamping portions and stress portions, the rotating assembly is hinged to the inner side wall of the shell through hinge points on the rotating assembly, the rotating assembly rotates around the hinge points, wires which are inserted from the second end and are in butt joint with the inner connecting sections are clamped or loosened, the adjusting assembly comprises matching portions and connecting portions, the matching portions penetrate through inclined grooves in the clamping portions and can synchronously slide in the inclined grooves, the inner ends of the connecting portions are fixed with the matching portions, and the outer ends of the connecting portions penetrate out from the second end and are fixedly connected with operation portions.
The rotating assemblies are uniformly arranged and arrayed by taking the axis of the connecting assembly as the symmetry center, and at least two rotating assemblies are arranged; each clamping portion is rotatable about a respective hinge point and commonly clamps or unclamps the wire inserted from the second end.
The clamping part is provided with a chute, and the vertical distance between one end, close to the hinge point, of the chute and the central shaft of the connecting assembly is always greater than the vertical distance between the other end of the chute and the central shaft of the connecting assembly.
The connecting assembly is provided with a constraint block, two end faces of the constraint block are a first face and a second face respectively, the inner connecting section is fixed on the second face, and the outer connecting section is fixed on the first face; the edge of the second surface is provided with a round angle, an annular area between the round angle and the inner connecting section is concave to form an annular groove, a first elastic piece is arranged between the first surface and the inner side surface of the first end, and the first elastic piece is sleeved on the periphery of the outer connecting section.
The inner side wall of the shell is fixedly provided with a second elastic piece, each rotating assembly corresponds to one second elastic piece, and the outer ends of the second elastic pieces are propped against the outer side edges of the corresponding clamping parts.
The stress part is arranged at the other end of the hinge point relative to the clamping part and is fixedly connected with the clamping part; the hinge point of the rotating component is hinged on the annular bulge on the inner side wall of the shell through the hinge seat; the outer side edge of the stress part is a plane, the inner side edge is a curved surface, and the end part of the stress part forms a tip; when the tip end of the force-bearing part is hooked in the annular groove, the annular groove can limit the rotation of the force-bearing part; when the tip of the force receiving portion is separated from the annular groove, the rounded edges of the second face can press the inner edges of the force receiving portion, so that the clamping portions of the respective rotating assemblies can clamp the electric wires inserted from the second end together.
The tail end of the outer connecting section is provided with a section of thread section, and the thread section is provided with two nuts which are matched with each other; a connecting sheet is arranged between the two nuts, one end of the connecting sheet is sleeved on the threaded section and is clamped between the two nuts.
The outer side wall of the shell is provided with a transverse circle of fixing ring, and the binding posts are fixed and installed on the power distribution terminal through the fixing ring.
The beneficial effects of the invention are as follows: compared with the prior art, when the wiring terminal is externally connected, the technical scheme of the invention omits a plurality of complicated wiring, winding and fixing and clamping steps, and omits the process of manually peeling off the longer wire skin, so that the wiring is very simple and convenient, the connection of the wiring can be realized by directly inserting the wire end by a user, the stability of the connection can also be ensured, and the main materials in the invention are all made of insulating hard materials, such as plastics, so that the cost is low and the good use effect is obtained.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a detailed view of the explosion diagram II and its partial structure;
FIG. 3 is a view showing an internal structure and a longitudinal sectional view of the present invention in a clamped state;
FIG. 4 is a view of the internal structure and longitudinal section of the present invention in its unclamped state;
FIG. 5 is a schematic view of the positional relationship of the coupling assembly, the rotating assembly and the adjusting assembly of the present invention;
FIG. 6 is a schematic illustration of the action of the pusher of the present invention;
fig. 7 is a schematic view of the mounting structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings of the present specification.
Example 1: as shown in fig. 1 to 7, a terminal structure suitable for detecting a power distribution terminal includes a housing 100, a connection assembly 200, an adjustment assembly 400, and a rotation assembly 300, wherein the housing 100 includes a first end 101 and a second end 102, and a receiving space M is formed therein; the connection assembly 200 comprises an inner connection section 201 and an outer connection section 202, wherein the inner connection section 201 is positioned inside the accommodating space M, and the outer connection section 202 penetrates through the through hole 101a on the first end 101 and extends out of the accommodating space M; the rotating assembly 300 comprises clamping portions 302 and a force receiving portion 303, the rotating assembly 300 is hinged on the inner side wall of the shell 100 through a hinge point 301 on the rotating assembly, the rotating assembly rotates around the hinge point 301 to clamp or loosen an electric wire inserted from the second end 102 and butted with the inner connecting section 201, the adjusting assembly 400 comprises a matching portion 401 and a connecting portion 402, the matching portion 401 penetrates through a chute 302a on each clamping portion 302 and can synchronously slide in each chute 302a, the inner end of the connecting portion 402 is fixed with the matching portion 401, and the outer end of the connecting portion 402 penetrates out of the second end 102 and is fixedly connected with an operating portion 403.
Further, the rotating assemblies 300 are uniformly arranged and arranged with the axis of the connecting assembly 200 as the symmetry center, and at least two of them are provided; each clamping portion 302 is capable of rotating about a respective hinge point 301 and commonly clamping or unclamping a wire inserted from the second end 102.
Further, the clamping portion 302 has a chute 302a, and a vertical distance between one end of the chute 302a near the hinge point 301 and the central axis of the connection assembly 200 is always greater than a vertical distance between the other end of the chute 302a and the central axis of the connection assembly 200.
Further, the connecting assembly 200 is provided with a constraint block 203, two end faces of the constraint block 203 are a first face 203a and a second face 203b respectively, the inner connecting section 201 is fixed on the second face 203b, and the outer connecting section 202 is fixed on the first face 203 a; the edge of the second surface 203b is provided with a rounded corner, the annular area between the rounded corner and the inner connecting section 201 is concave to form an annular groove 203b-1, a first elastic member 204 is arranged between the first surface 203a and the inner side surface of the first end 101, and the first elastic member 204 is sleeved on the periphery of the outer connecting section 202.
Further, the second elastic members 104 are fixed on the inner side wall of the housing 100, each rotating assembly 300 corresponds to one second elastic member 104, and the outer end of each second elastic member 104 abuts against the outer edge of the corresponding clamping portion 302.
Further, the stress part 303 is disposed at the other end of the hinge point 301 relative to the clamping part 302 and is fixedly connected with the clamping part 302; the hinge point 301 of the rotating assembly 300 is hinged on the annular protrusion 103 on the inner side wall of the housing 100 by a hinge seat 304; the outer side edge of the force receiving part 303 is a plane, the inner side edge is a curved surface, and the end part of the force receiving part 303 forms a tip; when the tip of the force receiving portion 303 is hooked in the annular groove 203b-1, the annular groove 203b-1 can restrict the rotation of the force receiving portion 303; when the tip of the force receiving portion 303 is disengaged from the annular groove 203b-1, the rounded edge of the second face 203b can press the inner side edge of the force receiving portion 303 so that the clamping portions 302 of the respective rotating assemblies 300 can clamp the electric wires inserted from the second end 102 in common.
Further, the end of the outer connecting section 202 has a threaded section 202a, and the threaded section 202a has two nuts 202b that are engaged with each other; a connecting piece 202c is arranged between the two nuts 202b, and one end of the connecting piece 202c is sleeved on the threaded section 202a and is clamped between the two nuts 202 b.
Further, the outer side wall of the housing 100 is provided with a transverse ring 105, and the terminal is fixed and mounted on the power distribution terminal by the ring 105.
The specific implementation mode is as follows:
referring to fig. 1 to 7, in one embodiment of the present invention, a terminal structure suitable for detecting a power distribution terminal is provided, which may be used for connection of wires on various control cabinets, analog cabinets or other electrical devices.
The terminal includes an outer housing 100, a connection assembly 200 penetrating an end surface of the housing 100 and used for wiring, and a rotation assembly 300 used for fixing an inserted electric wire.
Specifically, the housing 100 may preferably be hollow and cylindrical, and has two ends sealed to form a receiving space M therein. The housing 100 has a first end 101 and a second end 102 at its longitudinal end faces, respectively, while the housing 100 has a transverse ring of fixing rings 105 on its outer side wall for the actual fixing and mounting of the terminal. The annular edge structure of the retaining ring 105.
When the terminal is mounted on a panel of a housing of an electrical device, the panel needs to have corresponding mating mounting holes through which the first end 101 of the housing 100 extends from the outside to the inside of the electrical device, while the second end 102 remains outside the housing of the electrical device for plugging in external wires. Finally, one turn of the fixing ring 105 can be fixed on the panel by a plurality of screw-nut combinations (of course, the fixing ring 105 and the panel have corresponding round holes for insertion of screws).
The connection assembly 200 includes an inner connection section 201, an outer connection section 202, and a restraint block 203 therebetween. The restraint block 203 is a short column with one end rounded, and two end faces are a first face 203a and a second face 203b, the inner connecting section 201 is fixed on the second face 203b, and the outer connecting section 202 is fixed on the first face 203 a. The edge of the second face 203b is provided with a rounded corner and on the second face 203b the annular region between the rounded corner and the inner connecting section 201 is recessed to form an annular groove 203b-1 such that on any cross-section through the central axis of the restraint block 203 the outer port of the annular groove 203b-1 forms a "hook".
Preferably, the inner connecting section 201, the outer connecting section 202 and the confinement block 203 can be fabricated as a unitary structure from conventional conductive metallic materials such as copper, aluminum, etc.
The inner connecting section 201 and the restraining block 203 are located inside the accommodating space M, and the outer connecting section 202 extends out of the accommodating space M through the first end 101. Wherein the inner connecting section 201 is rod-shaped, one end of the inner connecting section is vertically fixed on the second surface 203b of the restriction block 203, and the other end is an overhanging free end; the outer connecting section 202 is in the shape of a screw, one end of which is vertically fixed to the first surface 203a of the restriction block 203, and the other end of which passes through the through hole 101a on the first end 101 to the outside. It should be noted that: the first face 203a of the restraint block 203 is sized larger than the aperture 101a such that the connection assembly 200 cannot be disengaged from the housing 100.
Preferably, the central axes of the inner connecting section 201, the outer connecting section 202 and the restraining block 203 are coincident with each other, and the central axis of the connecting assembly 200 is coincident with the longitudinal central axis of the housing 100, so that the connecting assembly 200 is ensured to be located at the central axis position in the housing 100.
The end of the outer connecting section 202 is provided with a threaded section 202a, and the threaded section 202a is provided with two nuts 202b matched with each other; a connecting piece 202c is further arranged between the two nuts 202b, and one end of the connecting piece 202c is sleeved on the threaded section 202a and clamped between the two nuts 202b to form fixation. The "connection piece 202c" may be a copper piece, a copper nose, or other electrical connector for connecting to an internal circuit of an electrical device, which is not described in detail herein.
Further, a first elastic member 204 is disposed between the first surface 203a of the constraint block 203 and the inner side surface of the first end 101, and the first elastic member 204 is sleeved on the outer periphery of the outer connecting section 202. The first elastic member 204 may employ a compression spring, and thus, the connection assembly 200 as a whole may perform a certain degree of longitudinal rectilinear motion.
In the present invention, the second end 102 of the housing 100 has the insertion hole 102a, and the external wire end can be inserted into the accommodation space M from the insertion hole 102a and be in contact with the free end face of the internal connection section 201, so that the circuit of the "external wire-internal connection section 201-restraint block 203-external connection section 202-connection piece 202 c-electrical equipment internal circuit" is brought into a communication state. Preferably, the connecting assembly 200 can be indirectly pushed to perform a certain degree of linear motion by pushing the external electric wire inwards, and the first elastic member 204 also has a rebound effect.
However, if the electric wire is simply inserted into the insertion hole 102a and is abutted against the inner connecting section 201, the fixing and stabilizing effects are not achieved, and the electric wire is still easily detached. Thus, the inserted wire can be fixed by the rotating assembly 300, so that the binding and locking can be synchronously realized once the wire is inserted.
The rotating assembly 300 is located in the accommodating space M and has a hinge point 301 thereon. The swivel assembly 300 is hinged to the inner side wall of the housing 100 by a hinge point 301 thereon. Specifically, the inner side wall of the casing 100 is provided with a transverse ring-shaped protrusion 103, and at least two hinge seats 304 are uniformly distributed on the ring-shaped protrusion 103. The accommodating space M has the same number of rotating assemblies 300 corresponding to the hinge bases 304 one by one, and the hinge points 301 of each rotating assembly 300 are respectively hinged with the corresponding hinge bases 304 one by one and are fixed on the annular protrusion 103 on the inner side wall of the casing 100 through each hinge base 304.
Therefore, a plurality of uniformly distributed rotating assemblies 300 can be understood as an annular array of the central axis of the connecting assembly 200, and at least two rotating assemblies are provided (four uniformly distributed rotating assemblies 300 are shown in the drawings of the present invention, but the scope of protection is not limited).
Further, the swivel assembly 300 includes clamp portions 302, each clamp portion 302 being capable of rotating about a respective hinge point 301 and commonly clamping or unclamping a wire inserted from the second end 102. Preferably, the clamping portion 302 is formed in a bent shape, and the bending direction is the central axis direction of the connection assembly 200 (i.e. the axial direction of the wire to be inserted). In addition, the end of the clamping portion 302 further has a clamping surface 302b, and the clamping surface 302b may be made of a flexible material (such as rubber) with anti-slip and anti-drag properties, and when the external electric wire is inserted into the insertion hole 102a and is abutted with the inner connecting section 201, the clamping surface 302b of the clamping portion 302 can be exactly and completely attached to the outer surface of the electric wire. When the thickness of the wire is slightly different, the clamping surface 302b is made of a flexible resistance-increasing material, so that the flexible resistance-increasing material can adapt to the space of the difference, and still can be attached to and clamped on the wire.
Further, the clamping or loosening of the electric wire by the clamping portion 302 is controlled by the following technical scheme:
the clamping portion 302 has a through chute 302a, and the chute 302a may be a rectangular through hole with a long shape, preferably, two widths of the rectangle may be replaced by a convex semicircle. In terms of spatial position, it is also necessary to ensure that: the vertical distance from one end of the chute 302a near the hinge point 301 to the central axis of the connection assembly 200 is always greater than the vertical distance from the other end of the chute 302a to the central axis of the connection assembly 200.
If the end of the chute 302a near the hinge point 301 is the clamping end 302a-1 and the end of the chute 302a far from the hinge point 301 is the releasing end 302a-2, the vertical distance between the clamping end 302a-1 and the central axis of the connecting assembly 200 is greater than the vertical distance between the releasing end 302a-2 and the central axis of the connecting assembly 200 according to the above description, that is, the trend of gradually approaching the central axis of the connecting assembly 200 from the clamping end 302a-1 to the releasing end 302a-2 in the chute 302a is ensured.
The terminal of the present invention further includes an adjustment assembly 400, where the adjustment assembly 400 includes a mating portion 401 and a connecting portion 402, where the mating portion 401 may be a torus that sequentially passes through the chute 302a on each clip portion 302 to "string" the mating portions 401 together. The engaging portions 401 can slide relatively in each chute 302a simultaneously, and the invention realizes the adjustment of the rotation angle of the clamping portion 302 by pulling or pushing the engaging portions 401 along the direction of the central axis of the connecting assembly 200. The specific principle is as follows: the above-mentioned "the trend of gradually approaching the central axis of the connection assembly 200 from the clamping end 302a-1 to the releasing end 302a-2 in the chute 302 a" is that the fitting portion 401 itself does not undergo structural change during movement, and thus conversely, when the fitting portion 401 moves in the chute 302a in a direction away from the hinge point 301, the clamping portion 302 will rotate in a direction away from the electric wire and release the electric wire; when the fitting portion 401 moves in the direction approaching the hinge point 301 within the inclined groove 302a, the clamping portion 302 will rotate in the direction approaching the electric wire and clamp the electric wire.
In the above, the movement of the engaging portion 401 along the central axis direction of the connection assembly 200 may be transmitted through the connecting portion 402 and the operating portion 403 at the outer end thereof. Specifically, the connection portion 402 is a longitudinally disposed rod-shaped structure, and may be provided with a plurality of connection portions in parallel, which are disposed offset from the rotation assembly 300. The inner end of each connecting portion 402 is fixed to the mating portion 401, while the outer end extends out of the second end 102 of the housing 100 along the longitudinal direction, and is integrally fixed to the outer end of each connecting portion 402 by an operating portion 403, where the operating portion 403 may be a torus.
When the engagement portion 401 is set to be close to the release end 302a-2 in the initial state, the clamp portion 302 is in the released state. Accordingly, when the electric wire is inserted from the insertion hole 102a and docked with the inner connection section 201, the operation portion 403 can be pushed inward. At this time, the fitting portion 401 gradually approaches the clamping end 302a-1, and the clamping portion 302 gradually approaches the electric wire, eventually achieving complete clamping. In the clamped state, it is necessary to ensure that the operating portion 403 just touches the second end 102 of the housing 100 or that a gap remains between the operating portion and the second end 102. When the electric wire needs to be loosened, the operating portion 403 can be pulled outward. At this time, the fitting portion 401 gradually approaches the releasing end 302a-2, and the clamping portion 302 gradually gets away from the electric wire, eventually achieving complete release.
Preferably, to accommodate the thickness differences between different wires, a spare length may be reserved for chute 302a (i.e., the length of chute 302a is set longer) in preparation for clamping smaller sized wires. Namely: no matter when the clamping portion 302 clamps or unclamps the wire, the mating portion 401 cannot slide completely within the chute 302a to the clamping end 302a-1 or the unclamping end 302a-2, which ensures that the clamping portion 302 has a larger reserved rotational space.
Further, the inner side wall of the housing 100 is fixed with the second elastic members 104 corresponding to the rotating assemblies 300 in number and one-to-one, each clamping portion 302 corresponds to one second elastic member 104, and the outer ends of the second elastic members 104 are abutted against the outer edges of the corresponding clamping portions 302. The second elastic member 104 may be a spring piece with deformation and rebound ability, and after the mating portion 401 approaches the clamping end 302a-1 and makes the clamping portion 302 clamp the electric wire, the second elastic member 104 can maintain the clamping effect of the clamping portion 302 on the electric wire and prevent the electric wire from loosening.
Further, the rotating assembly 300 further has a force receiving portion 303, where the force receiving portion 303 is disposed at the other end of the hinge point 301 with respect to the clamping portion 302. Thus, the rotating assembly 300 is divided into two sections, a clamping portion 302 and a force receiving portion 303, respectively, by the intermediate hinge point 301. The force receiving portion 303 is used to assist and optimize the clamping and releasing effects (i.e., enhance and maintain the clamping effect, maintain the releasing state) of the clamping portion 302 on the electric wire.
The outer edge of the force receiving portion 303 is a plane, while the inner edge is a curved surface, and the end of the force receiving portion 303 is formed as a tip. When each of the rotating assemblies 300 is rotated simultaneously and the tip of the force receiving portion 303 thereof is hooked in the annular groove 203b-1 of the restriction block 203, the outer side edge of the tip of the force receiving portion 303 will press the outer side wall of the annular groove 203b-1 due to the pressing of the second elastic member 104. Meanwhile, the first elastic piece 204 can press the constraint block 203 to enable the constraint block to have a trend of moving towards the direction of the rotating assembly 300, so that the annular groove 203b-1 can buckle the tip of each stressed portion 303, limit the rotation of the stressed portion 303, enable the clamping portion 302 to maintain a loose state, and facilitate the extraction of a wire or the unobstructed insertion of a new wire.
When the tip of each of the force receiving portions 303 is disengaged from the annular groove 203b-1, the rounded edges of the second face 203b can contact and press the inner edges of the tips of each of the force receiving portions 303, also due to the pressing of the first elastic member 204 against the restriction block 203. Since the inner edge of the tip is curved, the restraint block 203 presses the force receiving portions 303, and each force receiving portion 303 tends to be "spread apart" and away from the central axis of the connection assembly 200, while the clamping portion 302 also tends to clamp the wire. In this manner, the clamping portions 302 of the respective rotating assemblies 300 can clamp the electric wires together, enhancing and maintaining the clamping effect.
It should be noted that the first elastic member 204 is in a compressed state during any of the above processes, so that the clamping effect or the releasing state of the clamping portion 302 can be maintained all the time.
The binding post disclosed by the invention is used in the following manner:
when set in the initial state, the tip of the force receiving portion 303 is restrained in the annular groove 203b-1, and the engaging portion 401 is close to the released end 302a-2, with the holding portion 302 in the released state.
If an external wire is needed, part of the fiber core of the wire end can be exposed in advance (the wire end is not needed to be treated too much and only needs to be exposed and visible); the wires are inserted from the jack 102a and docked with the inner connection section 201.
After the electric wire is butted with the inner connecting section 201, the electric wire is pushed inwards continuously, so that the whole of the butted connecting assembly 200 moves inwards, and finally the tip of the stress part 303 is separated from the annular groove 203b-1; when the tip of the force receiving portion 303 is not constrained by the annular groove 203b-1, the second elastic member 104 can press the clamping portion 302 effectively, so that it rotates in the wire direction.
The wire stops pushing after pushing the connection assembly 200. After the tip of the force receiving portion 303 is separated from the annular groove 203b-1, the restriction piece 203 can press the inner edge of the force receiving portion 303, so that the holding portion 302 can rotate in a direction approaching the electric wire. Thus, the binding block 203 and the second elastic member 104 cooperate to enable the clamping portion 302 of each rotating assembly 300 to rotate together and clamp the wire.
During rotation of the rotating assembly 300, the engagement portion 401 is also adapted to automatically move along the chute 302a toward the clamping end 302a-1 (i.e., the adjustment assembly 400 moves into the receiving space M). Of course, if the restraint block 203 cooperates with the second resilient member 104 not yet sufficiently to allow for adaptive movement of the adjustment assembly 400, the operating portion 403 may be manually pushed inwardly.
When the electric wire needs to be pulled out, the electric wire needs to be pushed first to jack up the connecting assembly 200 inwards, then the adjusting assembly 400 is pulled out outwards, so that the tip of the stress part 303 rotates towards the direction close to the central axis of the connecting assembly 200 until the tip of the stress part 303 is embedded into the annular groove 203b-1, and then the electric wire is stopped being pushed, and then the rebound constraint block 203 can be buckled on the tip of the stress part 303 to form constraint. At the same time, the clamping portion 302 releases the electric wire and maintains the released state, i.e., the electric wire can be pulled out.
If the external electric wire is required to be thinner and has low strength, the pushing member 500 can be used to push the connection assembly 200. The pushing member 500 may be a hollow circular tube with a longitudinal slit, i.e. a longitudinal opening is cut on the side of a hollow tubule along the direction of the generatrix, so as to obtain the pushing member 500. The "longitudinal opening" is a through slot from which the wire can be inserted into the hollow channel of the barrel. In use, the wire is inserted into the pusher 500 such that the pusher 500 is inserted into the receptacle 102a with the wire and the connector assembly 200 is pushed by the pusher 500, and when the clamping portion 302 begins to close and clamp the pusher 500, the wire is held stationary and the pusher 500 is withdrawn, and finally the clamping portion 302 can clamp the wire. To facilitate extraction of the pusher 500, the inner and outer surfaces of the pusher 500 may be provided with smooth surfaces to reduce friction. The ends of the holding surfaces 302b may be rounded, and when the wires need to be pulled out, the exposed wires may be first inserted into the pushing member 500, and then the pushing member 500 is inserted into the insertion hole 102a along the wire direction, and is pushed into the middle of each holding surface 302b from the opening formed by the rounded ends of each holding surface 302b, which is not described herein.
In practice, the push member 500 is rarely used, and the wiring process can be completed by directly inserting the electric wire. Because the use mode of the binding post and the butt joint mode of the electric wire determine that the electric wire end does not need to be treated excessively, the electric wire end only needs to be exposed and visible, namely: the wire to be inserted only needs to process the end of a little fiber core, and a large amount of wire sheath is not required to be pulled out, so that the wire with the wire sheath has enough strength and toughness to directly push the connecting assembly 200 to displace.
In summary, when the binding post is used for wiring, the complex steps of wiring, winding and fixing and clamping are omitted, and the process of manually stripping the longer wire skin is omitted, so that the wiring is very simple and convenient, the connection of the circuit can be realized by directly inserting the wire end by a user, and the connection stability can be ensured. To ensure the safety of the use of the terminal, the housing 100, the rotating assembly 300, the adjusting assembly 400 and the pushing member 500 of the present invention are made of an insulating hard material such as plastic.
The present invention is not described in detail in the present application, and is well known to those skilled in the art. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (5)
1. Terminal structure suitable for distribution terminal detects, its characterized in that: the device comprises a shell (100), a connecting assembly (200), an adjusting assembly (400) and a rotating assembly (300), wherein the shell (100) comprises a first end (101) and a second end (102), and a containing space (M) is formed inside; the connecting assembly (200) comprises an inner connecting section (201) and an outer connecting section (202), wherein the inner connecting section (201) is positioned inside the accommodating space (M), and the outer connecting section (202) penetrates out of a perforation (101 a) on the first end (101) and extends out of the accommodating space (M); the rotating assembly (300) comprises clamping parts (302) and stress parts (303), the rotating assembly (300) is hinged on the inner side wall of the shell (100) through hinge points (301) on the rotating assembly, the rotating assembly rotates around the hinge points (301) to clamp or loosen wires inserted from the second end (102) and butted with the inner connecting section (201), the adjusting assembly (400) comprises matching parts (401) and connecting parts (402), the matching parts (401) penetrate through inclined grooves (302 a) on each clamping part (302) and can synchronously slide in each inclined groove (302 a), the inner ends of the connecting parts (402) are fixed with the matching parts (401), and the outer ends of the connecting parts (402) penetrate out from the second end (102) and are fixedly connected with operation parts (403); the rotating assemblies (300) are uniformly arranged and arrayed by taking the axis of the connecting assembly (200) as the symmetry center, and at least two rotating assemblies are arranged; each clamping portion (302) can rotate around a respective hinging point (301) and clamp or unclamp the electric wire inserted from the second end (102) together; the clamping part (302) is provided with a chute (302 a), and the vertical distance between one end, close to the hinge point (301), of the chute (302 a) and the central axis of the connecting assembly (200) is always larger than the vertical distance between the other end, inside the chute (302 a), and the central axis of the connecting assembly (200); the stress part (303) is fixedly connected with the clamping part (302), and the stress part (303) and the clamping part (302) are respectively and correspondingly arranged at two ends of the hinging point (301); the hinge point (301) of the rotating assembly (300) is hinged on the annular bulge (103) on the inner side wall of the shell (100) through the hinge seat (304); the outer side edge of the stress part (303) is a plane, the inner side edge is a curved surface, and the end part of the stress part (303) forms a tip; when the tip of the force receiving portion (303) is hooked in the annular groove (203 b-1), the annular groove (203 b-1) can restrict rotation of the force receiving portion (303); when the tip of the force receiving portion (303) is disengaged from the annular groove (203 b-1), the rounded edge of the second face (203 b) can press the inner edge of the force receiving portion (303) so that the clamping portions (302) of the respective rotating assemblies (300) can clamp the electric wire inserted from the second end (102) together.
2. The terminal structure suitable for power distribution terminal detection of claim 1, wherein: the connecting assembly (200) is provided with a constraint block (203), two end faces of the constraint block (203) are a first face (203 a) and a second face (203 b) respectively, the inner connecting section (201) is fixed on the second face (203 b), and the outer connecting section (202) is fixed on the first face (203 a); the edge of the second surface (203 b) is provided with a round angle, an annular area between the round angle and the inner connecting section (201) is concave to form an annular groove (203 b-1), a first elastic piece (204) is arranged between the first surface (203 a) and the inner side surface of the first end (101), and the first elastic piece (204) is sleeved on the periphery of the outer connecting section (202).
3. The terminal structure suitable for power distribution terminal detection of claim 1, wherein: the inner side wall of the shell (100) is fixedly provided with a second elastic piece (104), each rotating assembly (300) corresponds to one second elastic piece (104), and the outer ends of the second elastic pieces (104) are propped against the outer side edges of the corresponding clamping parts (302).
4. The terminal structure suitable for power distribution terminal detection of claim 1, wherein: the tail end of the outer connecting section (202) is provided with a section of thread section (202 a), and the thread section (202 a) is provided with two matched nuts (202 b); a connecting piece (202 c) is arranged between the two nuts (202 b), and one end of the connecting piece (202 c) is sleeved on the threaded section (202 a) and is clamped between the two nuts (202 b).
5. The terminal structure suitable for power distribution terminal detection of claim 1, wherein: the outer side wall of the shell (100) is provided with a transverse circle of fixing rings (105), and the binding posts are fixed and installed on the power distribution terminal through the fixing rings (105).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265577.8A CN109921204B (en) | 2019-04-03 | 2019-04-03 | Terminal structure suitable for distribution terminal detects |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910265577.8A CN109921204B (en) | 2019-04-03 | 2019-04-03 | Terminal structure suitable for distribution terminal detects |
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| CN109921204A CN109921204A (en) | 2019-06-21 |
| CN109921204B true CN109921204B (en) | 2024-04-02 |
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| Publication number | Publication date |
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| CN109921204A (en) | 2019-06-21 |
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