CN219935961U

CN219935961U - Single-phase electric energy meter convenient to installation

Info

Publication number: CN219935961U
Application number: CN202321366316.3U
Authority: CN
Inventors: 涂前军; 胡召辉; 代凤阳
Original assignee: Zhejiang Ouailong Instrument Co ltd
Current assignee: Zhejiang Ouailong Instrument Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-10-31
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to a single-phase electric energy meter convenient to install, which comprises a shell, a wiring row arranged in the shell, a plurality of wiring terminals arranged in the wiring row, wiring round holes arranged in the wiring terminals, wiring pins and wiring cylinders, wherein the wiring cylinders are provided with a plurality of expansion joints which penetrate through the wiring cylinders upwards, the inner diameter of the wiring cylinders is gradually reduced from the lower end to the upper end, the outer wall of the wiring cylinders is provided with first threads, the wiring pins are internally provided with threaded round holes which penetrate through the wiring pins downwards and are matched with the wiring cylinders, the side walls of the threaded round holes are provided with second threads which can be meshed with the first threads, the upper ends of the peripheral side surfaces of the wiring pins are provided with at least two limit lugs which are uniformly distributed, the side walls of the wiring round holes are provided with a plurality of sliding grooves which are matched with the limit lugs in a one-to-one correspondence manner, and the tops of the side walls of the wiring round holes are provided with limit ring grooves which can be used for the rotation of the limit lugs. The single-phase electric energy meter convenient to install enables the access operation of the electric wire to be simpler and more convenient, and facilitates the installation of the electric energy meter.

Description

Single-phase electric energy meter convenient to installation

Technical Field

The utility model relates to the technical field of electric energy meters, in particular to a single-phase electric energy meter convenient to install.

Background

The electric energy meter is an instrument for measuring electric energy, and has wide application in production and living. When the electric energy meter is installed, the electric energy meter is firstly required to be fixed in the electric meter box according to the layout, and then the electric wires are connected into the wiring row of the electric energy meter.

The electric energy meter in the prior art is provided with a plurality of wiring terminals in the wiring row, wiring grooves are formed in the wiring terminals, and after the electric wires extend into the wiring grooves, the electric wires are pressed through bolts extending into the wiring grooves, so that connection between the electric wires and the wiring row is realized. When operating personnel carry out foretell electric wire access operation, need one hand to hold the electric wire and make the electric wire keep in the wiring inslot, the other hand uses the instrument to screw up the bolt, and the operation is got up inconvenient, and the skew of electric wire in the wiring inslot can lead to the bolt to compress tightly the electric wire well moreover, the circumstances that the electric wire drops probably appears, has certain potential safety hazard.

The present utility model has been made in view of the above problems.

Disclosure of Invention

The utility model provides a single-phase electric energy meter convenient to install, which solves the problems in the use process of the prior art.

The technical scheme of the utility model is realized as follows:

the utility model provides a single-phase electric energy meter convenient to installation, includes the casing and sets up the wiring row in the casing, be provided with a plurality of binding post in the wiring row, the wiring round hole has been seted up in the binding post, the through wires hole with the wiring round hole intercommunication still includes binding post and wiring section of thick bamboo, set up the expansion joint of a plurality of upwards through-connection wiring section of thick bamboo on the wiring section of thick bamboo, the wiring section of thick bamboo internal diameter reduces from the lower extreme to the upper end gradually, be formed with first screw thread on the wiring section of thick bamboo outer wall, set up the spiro union round hole that link up the wiring round pin downwards and match with the wiring section of thick bamboo in the wiring round pin, be formed with the second screw thread that can mesh with first screw thread on the spiro union round hole lateral wall, be provided with two at least evenly distributed's spacing lugs on the wiring round hole lateral wall along the wiring round hole depth direction set up a plurality of and spacing annular groove that matches and one-to-one, set up on the wiring round hole lateral wall top and supply spacing lug pivoted.

Preferably, the bottom wall of the wiring round hole is connected with an elastic sheet with a W-shaped section.

Preferably, the terminal pin, the terminal barrel and the elastic piece are made of beryllium copper.

Preferably, the lower end of the wiring cylinder is connected with a sealing ring which is matched with the threading hole and is internally communicated with the inside of the wiring cylinder, and the inner diameter of the sealing ring is slightly larger than that of the wiring cylinder.

Preferably, the outer wall and the inner wall of the sealing ring are respectively provided with a first sealing ring groove and a second sealing ring groove, and the first sealing ring groove and the second sealing ring groove are respectively internally provided with a first sealing ring and a second sealing ring.

Preferably, the outer wall of the sealing ring is connected with a clamping rod, a clamping block is formed at one side of the threading hole at the bottom of the wiring row, a clamping groove matched with the clamping rod is formed in the clamping block, and when the limiting protruding block rotates in the limiting ring groove and leaves the position aligned with the sliding groove, the clamping rod is clamped into the clamping groove.

Preferably, the sealing ring and the clamping rod are integrally formed by PVC materials.

In summary, the beneficial effects of the utility model are as follows:

1. the electric wire can be conveniently connected into the wiring cylinder through the cooperation of the wiring pin and the wiring cylinder, the wiring pin can be conveniently connected into the wiring terminal through the cooperation of the limiting convex blocks and the limiting ring grooves, the operation process is simple and convenient, tools are not needed, the connection operation of the electric wire is convenient, and therefore the installation of the electric energy meter is convenient;

2. the sealing performance of the wiring position after the electric wire is connected is enhanced through the effect of the sealing ring, dust is prevented from entering to influence the performance of the lead, and therefore the accurate operation of the electric energy meter is ensured;

3. the connection stability of the wiring pin and the wiring terminal is further enhanced through the cooperation of the clamping connection rod and the clamping connection groove.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of FIG. 1 at A;

FIG. 3 is an exploded view of the structure of FIG. 2;

FIG. 4 is a schematic view of a structure of a terminal pin according to the present utility model;

FIG. 5 is a schematic view of the structure of the wire barrel and the seal ring of the present utility model.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to fig. 1 to 5 of the embodiments of the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in the figure, the single-phase electric energy meter convenient to install comprises a shell 1 and a wiring row 2 arranged in the shell 1, a plurality of wiring terminals 3 are arranged in the wiring row 2, wiring round holes 31 are formed in the wiring terminals 3, threading holes 21 communicated with the wiring round holes 31 are formed in the wiring row 2, the single-phase electric energy meter further comprises a plurality of wiring pins 4 and wiring cylinders 5 consistent with the wiring terminals 3, a plurality of expansion joints 51 penetrating through the wiring cylinders 5 upwards are formed in the wiring cylinders 5, the inner diameter of the wiring cylinders 5 is gradually reduced from the lower end to the upper end, first threads 52 are formed in the outer wall of the wiring cylinders 5, threaded round holes 41 which downwards penetrate through the wiring pins 4 and are matched with the wiring cylinders 5 are formed in the wiring pins 4, second threads 42 which can be meshed with the first threads 52 are formed in the side walls of the threaded round holes 41, a plurality of limit lugs 43 which are evenly distributed are arranged in the side faces of the wiring round holes 31 are formed in the side walls of the wiring round holes, a plurality of limit lugs 43 which are matched with the limit lugs 43 in the depth direction of the wiring round holes 31 are formed in the side walls of the round holes 31, the limit lugs 32 are formed in the side walls of the round holes 31 in a one-to-one correspondence mode, and limit lugs 43 are formed in the side walls of the side walls which can be matched with the limit lugs 33 to rotate on the side walls of the round holes 31.

In the above embodiment, when the electric wire is connected, the end of the electric wire is threaded into the wire connecting cylinder 5, since the inner diameter of the wire connecting cylinder 5 is gradually reduced from the lower end to the upper end, the upper end of the wire connecting cylinder 5 is slightly expanded along the expansion joint 51 in the wire threading process, then the wire connecting cylinder 5 is screwed into the threaded round hole 41 through the cooperation of the first thread 52 and the second thread 42, and the upper end of the wire connecting cylinder 5 is folded to clamp the electric wire in the process of gradually screwing the wire connecting pin 4 into the wire connecting cylinder 5, so that the fastening connection of the electric wire and the wire connecting cylinder 5 is realized, then the limit lug 43 is aligned with the chute 32, the wire connecting pin 4 is threaded into the wire connecting round hole 31, the limit lug 43 is slid into the limit annular groove 33 along the chute 32, then the limit lug 43 is kept in the limit annular groove 33 by rotating the limit lug 4, the connection of the wire connecting pin 4 and the wire connecting terminal 3 is realized.

Preferably, the elastic piece 34 with a W-shaped cross section is connected to the bottom wall of the wire connection round hole 31, when the limit bump 43 slides in the chute 32 to a position that the limit bump does not completely leave the chute 32 and enters the limit ring groove 33, the end face of the wire connection pin 4 abuts against the elastic piece 34, the elastic piece 34 needs to be pressed inwards to make the limit bump 43 completely enter the limit ring groove 33, and the extruded elastic piece 34 rotates to leave a position aligned with the chute 32, so that the elastic force is provided for the wire connection pin 4 by the extruded elastic piece 34, and the limit bump 43 is more stably kept in the limit ring groove 33, thereby enhancing the connection stability of the wire connection pin 4 and the wire connection terminal 3.

Preferably, the terminal pin 4, the terminal tube 5 and the elastic piece 34 are made of beryllium copper, which has the characteristics of high strength, high elasticity, high conductivity and the like, and the strength and durability of the terminal pin 4, the terminal tube 5 and the elastic piece 34 are enhanced on the premise of ensuring the performance of the wire after the wire is connected, so that the connection of the wire is more stable.

Further, the lower end of the wiring cylinder 5 is connected with a sealing ring 6 which is matched with the threading hole 21 and is internally communicated with the inside of the wiring cylinder 5, and the inner diameter of the sealing ring 6 is slightly larger than the inner diameter of the wiring cylinder 5, so that the inner diameter of the sealing ring 6 is matched with the outer diameter of an insulating layer of the electric wire.

In the above preferred embodiment, after the core of the electric wire penetrates into the wire connecting cylinder 5, the insulating layer of the electric wire is clamped into the sealing ring 6, and after the wire connecting pin 4 penetrates into the wire connecting round hole 31, the sealing ring 6 is clamped into the wire connecting hole 21, so that the sealing of the wire connecting position is realized after the connection of the electric wire is completed, dust is prevented from entering the wire connecting position to affect the conductive performance, and the accurate operation of the electric energy meter is ensured.

Preferably, the outer wall and the inner wall of the sealing ring 6 are respectively provided with a first sealing ring groove 61 and a second sealing ring groove 62, the first sealing ring groove 61 and the second sealing ring groove 62 are respectively provided with a first sealing ring 63 and a second sealing ring 64, the first sealing ring 63 enables the sealing ring 6 to be clamped into the threading hole 21 and then has better sealing performance, and the second sealing ring 64 enables an insulating layer of the electric wire to be clamped into the sealing ring 6 and then has better sealing performance, so that the sealing performance of the wiring position after the electric wire is connected is improved in one step.

Still further, be connected with clamping rod 65 on the sealing ring 6 outer wall, wiring row 2 bottom is located through wires hole 21 one side and is formed with joint piece 22, offer on the joint piece 22 with clamping rod 65 matched joint groove 23, spacing lug 43 rotates in spacing annular 33 and leaves when keeping away from the position of aligning with spout 32, clamping rod 65 card goes into in the joint groove 23, sealing ring 6 and clamping rod 65 are by PVC material integrated into one piece.

In the above preferred embodiment, the clamping rod 65 can limit the rotation of the sealing ring 6 after being clamped into the clamping groove 23, so as to limit the rotation of the terminal pin 4, so that the limiting projection 43 is more stably maintained in the limiting ring groove 33, and the connection stability of the terminal pin 4 and the terminal 3 is further improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims

1. The utility model provides a single-phase electric energy meter convenient to installation, includes casing (1) and sets up wiring row (2) in casing (1), be provided with a plurality of binding post (3) in wiring row (2), wiring round hole (31) have been seted up in binding post (3), wiring row (2) are last to be seted up with wiring round hole (31) intercommunication through wires hole (21), its characterized in that: still include wiring round pin (4) and wiring section of thick bamboo (5), set up on wiring section of thick bamboo (5) a plurality of expansion joint (51) that upwards run through wiring section of thick bamboo (5), wiring section of thick bamboo (5) internal diameter is from lower extreme to the upper end diminishing gradually, be formed with first screw thread (52) on wiring section of thick bamboo (5) outer wall, set up in wiring round pin (4) downwards run through wiring round pin (4) and with wiring section of thick bamboo (5) matched's spiro union round hole (41), be formed with second screw thread (42) that can mesh with first screw thread (52) on spiro union round hole (41) lateral wall, wiring round pin (4) week side upper end is provided with at least two evenly distributed spacing lug (43), set up a plurality of spout (32) with spacing lug (43) matching and one-to-one along wiring round hole degree of depth direction on wiring round hole (31) lateral wall top, set up spacing annular (33) that can supply spacing lug (43) pivoted.

2. The single-phase electric energy meter convenient to install according to claim 1, wherein: the bottom wall of the wiring round hole (31) is connected with an elastic sheet (34) with a W-shaped section.

3. The single-phase electric energy meter convenient to install according to claim 2, wherein: the wiring pin (4), the wiring cylinder (5) and the elastic piece (34) are made of beryllium copper.

4. A single-phase electric energy meter for easy installation according to claim 3, wherein: the lower end of the wiring cylinder (5) is connected with a sealing ring (6) which is matched with the threading hole (21) and is internally communicated with the inside of the wiring cylinder (5), and the inner diameter of the sealing ring (6) is slightly larger than that of the wiring cylinder (5).

5. The single-phase electric energy meter convenient to install according to claim 4, wherein: the outer wall and the inner wall of the sealing ring (6) are respectively provided with a first sealing ring groove (61) and a second sealing ring groove (62), and the first sealing ring groove (61) and the second sealing ring groove (62) are respectively provided with a first sealing ring (63) and a second sealing ring (64).

6. The single-phase electric energy meter convenient to install according to claim 5, wherein: the sealing ring is characterized in that a clamping rod (65) is connected to the outer wall of the sealing ring (6), a clamping block (22) is formed at one side of the threading hole (21) at the bottom of the wiring row (2), a clamping groove (23) matched with the clamping rod (65) is formed in the clamping block (22), and when the limiting protruding block (43) rotates in the limiting ring groove (33) and leaves the position aligned with the sliding groove (32), the clamping rod (65) is clamped into the clamping groove (23).

7. The single-phase electric energy meter convenient to install according to claim 6, wherein: the sealing ring (6) and the clamping rod (65) are integrally formed by PVC materials.