Cam pressing switch type electric energy meter connector

Abstract

The invention provides a cam compression switch type electric energy meter connector, which comprises a fixed backboard, a functional base, a cam compression mechanism and an internal conversion connection mechanism, and is characterized in that the functional base comprises a fixed base arranged on the fixed backboard and a plug fixing seat arranged on the fixed base, the fixed base is provided with a wiring terminal capable of being connected with commercial power, and the cam compression mechanism is arranged on the fixed base; the plug fixing seat is provided with a plug which corresponds to the wiring terminal and can be connected with the electric energy meter; the cam pressing mechanism is mounted on the fixed base and is used for driving the plug to be inserted into or separated from the wiring terminal; the internal conversion connection mechanism is installed on the fixed base, and the internal conversion connection mechanism selectively enables the wiring terminal of the live wire and the wiring terminal of the zero wire to be short-circuited or disconnected. When the plug is driven by the cam pressing mechanism to leave the wiring terminals, the internal conversion connection mechanism is in short circuit with the wiring terminals of the live line and the zero line, so that power failure of a user is not needed in the replacement process of the electric energy meter, and the replacement efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric power metering accessories, in particular to a cam pressing switch type electric energy meter connector. BACKGROUND

[0002] As an electric power metering device, the electric energy meter needs to be replaced and checked every certain period of time to ensure the fairness of user use and metering.

[0003] In the traditional electric energy meter assembly mode, the electric energy meter needs to be fixedly connected with the power line by screws to provide power for the user, and before the replacement or checking of the electric energy meter, the power needs to be cut off in advance to ensure safe non-live operation, but in actual scenarios, communication obstacles often occur: some users cannot be contacted due to changes in contact information, long-term absence, etc., resulting in the forced suspension of the operation and maintenance plan; some users explicitly indicate that the power cannot be cut off due to production and operation or living needs; on the other hand, when the electric energy meter is damaged or the metering deviates, power loss will occur. Therefore, the existing technology still has the technical problem of low replacement efficiency of the electric energy meter due to the need for user power cut-off. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a cam pressing switch type electric energy meter connector, which can be replaced without user power cut-off and has high replacement efficiency.

[0005] A cam pressing switch type electric energy meter connector, comprising: a fixed back plate; a functional base including a fixed base mounted on the fixed back plate and a plug fixing seat provided on the fixed base, the fixed base being provided with a wiring terminal capable of being connected with commercial power, and the plug fixing seat being provided with a connector capable of being connected with the electric energy meter and corresponding to the wiring terminal; a cam pressing mechanism mounted on the fixed base, the cam pressing mechanism being used to drive the connector to be inserted into or separated from the wiring terminal; and an internal conversion connection mechanism mounted on the fixed base, the internal conversion connection mechanism being capable of selectively short-circuiting or disconnecting the wiring terminal of the live wire and the wiring terminal of the zero line.

[0006] In one embodiment, the plug fixing seat is detachably arranged on the fixed base.

[0007] In one embodiment, the cam pressing mechanism includes a dial plate and a return spring; the dial plate is provided with a cam, the cam is eccentrically and rotatably arranged on the fixed base, and the peripheral side of the cam abuts against the top surface of the plug fixing seat, one end of the return spring abuts against the wiring terminal through a spring insulation sleeve, and the other end of the return spring abuts against the connector.

[0008] In one embodiment, the terminal includes a U-shaped conductive spring and a wire fixing sleeve connected to and mounted on the fixed base, the plug can be inserted into or removed from the U-shaped conductive spring, and the wire fixing sleeve can be connected to the mains.

[0009] In one embodiment, one end of the plug is mounted in the plug fixed base and provided with a rectangular conductive contact surface A, the conductive contact surface A can be attached to or separated from the conductive contact surface B on the inner surface of the U-shaped conductive spring, and the other end of the plug can be connected to the electric energy meter.

[0010] In one embodiment, the functional base further includes an expansion mechanism for driving the plug to expand or cancel expansion when the plug is inserted into or removed from the terminal.

[0011] In one embodiment, the expansion mechanism includes an expansion thimble and a pushing assembly; the expansion thimble is provided on the fixed base, the plug is an inner support plug, the pushing assembly is provided in the inner support plug, and the expansion thimble can drive the inner support plug to expand or cancel expansion through the pushing assembly when the inner support plug is inserted into or removed from the terminal.

[0012] In one embodiment, the pushing assembly includes a pushing steel ball A, a pushing spring and a pushing steel ball B provided in the inner support plug; the pushing steel ball A and the pushing steel ball B are respectively located at both ends of the pushing spring, the expansion thimble is provided with a thimble inclined surface at the top end which can abut against the pushing steel ball A, and the inner support plug is provided with an inclined surface which can abut against the pushing steel ball B.

[0013] In one embodiment, the internal conversion connection mechanism includes a shorting block A, a shorting block B, a tensioning assembly and a clutch push rod; the shorting block A and the shorting block B are both provided on the fixed base through the tensioning assembly, and the clutch push rod is provided on the plug fixed base corresponding to the tensioning assembly, the clutch push rod can drive the shorting block A and the shorting block B to move through the tensioning assembly, so as to short or disconnect the terminal of the live wire and the terminal of the zero wire.

[0014] In one embodiment, the functional base further includes a wire pressing protection mechanism which is provided on the wire fixing sleeve.

[0015] The above-mentioned cam pressing switch type electric energy meter connector has the following beneficial effects: 1. The plug is driven away from the terminal by driving the cam pressing mechanism, and the internal conversion connection mechanism shorts the terminal of the live wire and the terminal of the zero line at the same time. At this time, the power supply does not directly supply power to the user through the electric energy meter, so that the user does not need to stop power supply during the replacement of the electric energy meter, and the replacement efficiency is high.

[0016] 2. The plug fixing seat is detachably arranged, which facilitates the replacement of the plug after the plug is damaged, facilitates the replacement of the plug, and reduces the replacement cost.

[0017] 3. The plug is inserted into the terminal by rotating the rotating plate to drive the cam to rotate and extrude the plug fixing base. At this time, the return spring is compressed and shrunk. Conversely, the plug is separated from the terminal by rotating the rotating plate in the opposite direction to drive the cam to rotate and cancel the extrusion of the plug fixing base. At this time, the reaction force of the return spring can make the plug separate from the terminal. The plug is driven to be inserted into or separated from the terminal conveniently, and the plug is not electrified, so that electric shock or short circuit can be avoided during construction. At the same time, the self-locking performance of the cam extruding the plug fixing base is good, and the pressing state is stable, so that the contact between the plug and the terminal is stable when the plug is inserted into the terminal, and the safety of user's power utilization is ensured.

[0018] 4. The terminal is composed of the U-shaped conductive spring and the wire fixing sleeve, which can realize effective contact of the power line, avoid sparking and reduce power loss; the plug is attached to the conductive contact surface B on the inner surface of the U-shaped conductive spring in the terminal through the rectangular conductive contact surface A, which can ensure good contact of the plug with the terminal.

[0019] 5. The expansion mechanism is arranged to cooperate with the plug, which can expand or cancel the expansion of the plug when the plug is inserted into or separated from the terminal, so as to facilitate the quick fixing or unfixed of the plug with the electric energy meter. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present application, the drawings required to be used in the specific embodiments will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0021] Figure 1 A perspective structural schematic view of a cam pressing switch type electric energy meter connector provided by an embodiment of the present application is shown in the figure. Figure 2 A perspective structural schematic view of a cam pressing switch type electric energy meter connector provided by an embodiment of the present application is shown in the figure. Figure 1 Figure 3 A perspective structural schematic view of a cam pressing switch type electric energy meter connector provided by an embodiment of the present application is shown in the figure. Figure 1 A perspective structural schematic view of a cam pressing switch type electric energy meter connector provided by an embodiment of the present application is shown in the figure. Figure 4 Figure 1 ​​A cam pressing switch type electric energy meter connector fixed base three-dimensional structure diagram; Figure 5 For Figure 1 A cam pressing switch type electric energy meter connector plug, terminal and expansion mechanism cooperation three-dimensional structure diagram; Figure 6 For Figure 1 A cam pressing switch type electric energy meter connector terminal three-dimensional structure diagram; Figure 7 For Figure 1 A cam pressing switch type electric energy meter connector plug fixed base three-dimensional structure diagram; Figure 8 For Figure 1 A cam pressing switch type electric energy meter connector cam pressing mechanism three-dimensional structure diagram; Figure 9 For Figure 1 A cam pressing switch type electric energy meter connector line pressing protection mechanism exploded view.

[0022] Reference signs: 1, fixed back plate; 2, function base; 10, fixed base; 101, base fixed plate; 102, shaft pin support; 103, shaft pin fixed; 104, rotating shaft pin; 105, conductive spring fixed groove; 106, fixed sleeve installation groove; 20, plug fixed base; 30, dial plate; 301, reset spring; 302, cam; 303, spring insulation sleeve; 304, via hole; 40, U-shaped conductive spring; 401, wire fixed sleeve; 402, conductive contact surface B; 403, tail connecting part; 50, inside support type plug; 501, conductive contact surface A; 502, chamfered surface; 60, expansion thimble; 601, push-in steel ball A; 602, push-in spring; 603, push-in steel ball B; 604, thimble chamfer; 605, thimble guide pin; 606, thimble insulation sleeve; 70, short block A; 701, short block B; 702, clutch push rod; 703, conductive block A; 704, conductive block B; 705, conductive block C; 706, conductive block D; 707, pull frame; 708, tension spring; 80, line pressing sleeve protection cover; 801, screw lead seal protection plate; 802, screw hole lead seal cover; 803, screw column. DETAILED DESCRIPTION

[0023] The embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, but cannot limit the protection scope of the present application.

[0024] Please refer to Figure 1 and Figure 2 In an embodiment, a cam pressing switch type electric energy meter connector includes a fixed back plate 1, a functional base 2, a cam pressing mechanism and an internal conversion connection mechanism.

[0025] The functional base 2 includes a fixed base 10 mounted on the fixed back plate 1 and a plug fixed base 20 provided on the fixed base 10. The fixed base 10 is provided with a terminal for connecting to the mains, and the plug fixed base 20 is provided with a plug corresponding to the terminal and connectable to the electric energy meter. The cam pressing mechanism is mounted on the fixed base 10, and is used to drive the plug to be inserted into or separated from the terminal. The internal conversion connection mechanism is mounted on the fixed base 10, and is used to selectively short-circuit or disconnect the terminal of the live wire and the terminal of the zero line.

[0026] In the above embodiment, when the electric energy meter is removed, the cam pressing mechanism is driven to drive the plug to be separated from the terminal, and at the same time, the internal conversion connection mechanism short-circuits the terminal of the live wire and the terminal of the zero line. At this time, the mains does not directly supply power to the user through the electric energy meter, so that the user does not need to stop power supply during the replacement of the electric energy meter, and the replacement efficiency is high.

[0027] Please refer to Figure 3 In the above embodiment, the base fixing plate 101 is mounted on the fixed back plate 1, and the shaft pin support 102 is provided on the base fixing plate 101. The fixed base 10 is positioned by being penetrated by the shaft pin support 102 in the shaft pin fixing 103, and is fixed at the top end of the base fixing plate 101 by a screw. The positioning cooperation of the shaft pin support 102 and the shaft pin fixing 103 facilitates the quick assembly of the fixed base 10.

[0028] Please refer to Figure 1 and Figure 2 In an embodiment, the plug fixed base 20 is detachably provided on the fixed base 10. Specifically, the plug fixed base 20 is slidingly provided on the shaft pin fixing 103, and the rotating shaft pin 104 is penetrated in the shaft pin fixing 103 and abuts against the shaft pin support 102 and the top end of the plug fixed base 20.

[0029] The plug fixing base 20 can be removed by moving upward after the plug fixing base 20 is no longer limited by the rotating shaft pin 104, and the plug fixing base 20 is convenient to remove. The plug fixing base 20 can be replaced after being damaged, the plug is convenient to replace, and the replacement cost is reduced.

[0030] Please refer to Figure 2 、 Figure 5 and Figure 8 In an embodiment, the cam pressing mechanism includes a dial plate 30 and a reset spring 301. The dial plate 30 is provided with a cam 302, the cam 302 is eccentrically and rotatably arranged on the fixed base 10, and the peripheral side is in abutment with the top surface of the plug fixing base 20. One end of the reset spring 301 is in abutment with the terminal through the spring insulation sleeve 303, and the other end is in abutment with the plug.

[0031] In the above embodiment, the plug can be inserted into the terminal by rotating the dial plate 30 to drive the cam 302 to rotate and press the plug fixing base 20. At this time, the reset spring 301 is compressed and shrunk. Conversely, the plug can be separated from the terminal by rotating the dial plate 30 in the opposite direction to drive the cam 302 to cancel the pressing of the plug fixing base 20. At this time, the reaction force of the reset spring 301 can make the plug separate from the terminal. The plug is driven to be inserted into or separated from the terminal conveniently, and the plug is not electrified, so that the electric shock or short circuit during construction can be avoided. At the same time, the cam 302 has good self-locking performance when pressing the plug fixing base 20, and the pressing state is stable, so that the contact between the plug and the terminal is stable when the plug is inserted into the terminal, and the safety of user's electricity use is ensured.

[0032] In the above embodiment, the cam 302 is eccentrically provided with a through hole 304, and the through hole 304 is sleeved on the rotating shaft pin 104. The dial plate 30 can be removed by removing the rotating shaft pin 104, so that the dial plate 30 can be replaced after being damaged.

[0033] Please refer to Figure 2 、 Figure 5 and Figure 6 In an embodiment, the terminal includes a U-shaped conductive spring 40 connected and installed on the fixed base 10 and a wire fixing sleeve 401. The plug can be inserted into or separated from the U-shaped conductive spring 40, and the wire fixing sleeve 401 can be connected with the commercial power. One end of the plug is installed in the plug fixing base 20, and is provided with a rectangular conductive contact surface A501. The conductive contact surface A501 can be attached to or separated from the conductive contact surface B402 of the inner surface of the U-shaped conductive spring 40. The other end of the plug can be connected with the electric energy meter.

[0034] Specific to the above embodiment, the fixed base 10 top end is provided with a conductive spring fixed groove 105 and a fixed sleeve installation groove 106, the U-shaped conductive spring 40 and the wire fixed sleeve 401 are respectively installed in the conductive spring fixed groove 105 and the fixed sleeve installation groove 106, and the wire fixed sleeve 401 is sleeved on the tail connecting part 403 of the U-shaped conductive spring 40.

[0035] In the above embodiment, the wiring terminal is composed of the U-shaped conductive spring 40 and the wire fixed sleeve 401, which can realize effective contact of the power line, avoid striking and reduce the phenomenon of electric loss; the plug is attached to the conductive contact surface B402 of the inner surface of the U-shaped conductive spring 40 in the wiring terminal through the rectangular conductive contact surface A501, which can ensure good contact of the plug inserted into the wiring terminal.

[0036] Please refer to Figure 2 and Figure 5 In an embodiment, the functional base 2 further comprises an expansion mechanism, which is used to drive the plug to expand or cancel expansion when the plug is inserted into or leaves the wiring terminal.

[0037] In the above embodiment, by setting the expansion mechanism and cooperating with the plug, the expansion mechanism can make the plug expand or cancel expansion when the plug is inserted into or leaves the wiring terminal, thereby facilitating the quick fixing or canceling of the plug and the electric energy meter.

[0038] On the basis of the above embodiment, further, the expansion mechanism comprises an expansion thimble 60 and a pushing assembly; the expansion thimble 60 is arranged on the fixed base 10, the plug is an inner support type plug 50, the pushing assembly is arranged in the inner support type plug 50, and when the inner support type plug 50 is inserted into or leaves the wiring terminal, the expansion thimble 60 can drive the inner support type plug 50 to expand or cancel expansion through the pushing assembly. Specifically, the expansion thimble 60 penetrates the U-shaped conductive spring 40, the spring insulating sleeve 303 and the reset spring 301, and the bottom end is installed in the conductive spring fixed groove 105, and the expansion thimble 60 and the U-shaped conductive spring 40 are sleeved with the thimble insulating sleeve 606.

[0039] The pushing assembly comprises a top-in steel ball A601, a top-in spring 602 and a top-in steel ball B603 arranged in the inner support type plug 50; the top-in steel ball A601 and the top-in steel ball B603 are respectively located at both ends of the top-in spring 602, the expansion thimble 60 is provided with a thimble inclined surface 604 capable of abutting against the top-in steel ball A601, and the inner support type plug 50 is provided with an inclined surface 502 abutting against the top-in steel ball B603.

[0040] When the inner support plug 50 is inserted into the terminal, the ejector bevel 604 of the expansion ejector 60 extrudes the ejector ball A 601 and transmits the extrusion force to the ejector ball B 603 through the ejector spring 602. At this time, the ejector ball B 603 extrudes the bevel 502 in the inner support plug 50 to expand the inner support plug 50. Conversely, when the inner support plug 50 is removed from the terminal, the extrusion force on the ejector ball A 601 disappears. At this time, the ejector ball B 603 stops extruding the bevel 502 in the inner support plug 50, so that the inner support plug 50 stops expanding. This facilitates the expansion and stop of expansion of the inner support plug 50 when it is inserted into or removed from the terminal.

[0041] In the above embodiment, further, the ejector bevel 604 is provided at the top end with an ejector guide pin 605 that is inserted into the inner support plug 50 and abuts against the ejector ball A 601. The inner support plug 50 is provided with a guide hole that communicates with the inner cavity, and the ejector guide pin 605 is inserted into the guide hole. The ejector ball A 601 is limited by the ejector guide pin 605, which ensures that the ejector bevel 604 effectively extrudes the ejector ball A 601. The cooperation of the ejector guide pin 605 and the guide hole improves the stability of the expansion ejector 60 when it extrudes the ejector ball A 601, avoiding bending and deviation.

[0042] Please refer to Figure 4 , Figure 5 and Figure 7 In an embodiment, the internal conversion connection mechanism includes a shorting block A 70, a shorting block B 701, a tensioning assembly, and a clutch push rod 702. The shorting block A 70 and the shorting block B 701 are arranged on the fixed base 10 by the tensioning assembly. The clutch push rod 702 is arranged on the plug fixed base 20 corresponding to the tensioning assembly. The clutch push rod 702 can drive the shorting block A 70 and the shorting block B 701 to move through the tensioning assembly, so as to short or disconnect the terminals of the live wire and the terminals of the zero wire.

[0043] Specifically, the terminal of the live wire is provided with the conductive block A 703 and the conductive block B 704 respectively, the terminal of the zero wire is provided with the conductive block C 705 and the conductive block D 706 respectively, the tension assembly includes the pull frame 707 and the tension spring 708, the opposite fixed base 10 is provided with two groups of pull frames 707, the bottom of the two groups of pull frames 707 is connected with the shorting block A 70 and the shorting block B 701 respectively, the tension spring 708 is connected between the two groups of pull frames 707 and the fixed base 10, the tension spring 708 is used to provide the tension of the shorting block A 70 and the conductive block A 703 and the conductive block B 704, and the shorting block B 701 and the conductive block C 705 and the conductive block D 706, the clutch push rod 702 can abut against the top of the two groups of pull frames 707 and push the pull frame 707 to move. Further, the conductive block A 703 and the conductive block B 704 are arranged at the bottom of the U-shaped conductive spring 40 in the terminal of the live wire, and the conductive block C 705 and the conductive block D 706 are arranged at the bottom of the U-shaped conductive spring 40 in the terminal of the zero wire.

[0044] In the above embodiment, when the plug fixing seat 20 moves to make the plug insert the terminal, the plug fixing seat 20 pushes the pull frame 707 to move through the clutch push rod 702, the pull frame 707 moves to drive the shorting block A 70 and the shorting block B 701 to move, so that the shorting block A 70 is separated from the conductive block A 703 and the conductive block B 704, and the shorting block B 701 is separated from the conductive block C 705 and the conductive block D 706, at this time, the tension spring 708 is compressed and shrinks, on the contrary, when the plug fixing seat 20 moves to make the plug leave the terminal, the clutch push rod 702 cancels the pushing force on the pull frame 707, at this time, the reaction force of the tension spring 708 makes the pull frame 707 drive the shorting block A 70 and the shorting block B 701 to move reversely, so that the shorting block A 70 is short-circuited with the conductive block A 703 and the conductive block B 704, and the shorting block B 701 is short-circuited with the conductive block C 705 and the conductive block D 706, which is convenient for short-circuiting or disconnecting the terminal of the live wire and the terminal of the zero wire when the plug inserts or leaves the terminal.

[0045] Please refer to Figure 4 , Figure 5 and Figure 7 , in an embodiment, the functional base 2 further includes a wire pressing protection mechanism, and the wire pressing protection mechanism is arranged on the wire fixing sleeve 401. Specifically, the wire pressing protection mechanism includes the wire sleeve protection cover 80, the screw lead seal protection plate 801 and the screw hole lead seal cover 802 which are stacked from bottom to top, the wire sleeve protection cover 80 is arranged on the wire fixing sleeve 401, and the screw column 803 on the screw hole lead seal cover 802 penetrates through the screw lead seal protection plate 801, the wire sleeve protection cover 80 and the fixed base 10 and is connected with the base fixed plate 101.

[0046] In the above embodiment, the strong electricity can be effectively isolated by the setting of the wire pressing cover protection cover 80, the screw lead seal protection plate 801 and the screw hole lead seal cover 802, so as to avoid the injury of the operator.

[0047] The specific embodiment of the above cam pressing switch type electric energy meter connector is: When the electric energy meter is disassembled, the rotation of the rotating plate 30 drives the cam 302 to rotate to cancel the extrusion of the plug fixing seat 20, at this time, the counteracting force of the reset spring 301 pushes the inner support type connector 50 to move up and away from the U-shaped conductive spring 40, at the same time, the upward movement of the inner support type connector 50 makes the plug fixing seat 20 move up, the upward movement of the plug fixing seat 20 drives the clutch push rod 702 to move up and cancel the pushing force on the pull frame 707, at this time, the counteracting force of the tension spring 708 makes the pull frame 707 drive the shorting block A 70 and the shorting block B 701 to move, so that the shorting block A 70 is short-circuited with the conductive block A 703 and the conductive block B 704, and the shorting block B 701 is short-circuited with the conductive block C 705 and the conductive block D 706, at this time, the commercial power is not directly supplied to the user through the electric energy meter, so that the user does not need to stop power supply during the replacement of the electric energy meter, and the replacement efficiency is high.

[0048] At the same time that the inner support type connector 50 moves away from the U-shaped conductive spring 40, the needle inclined surface 604 of the expansion thimble 60 cancels the extrusion of the pushing steel ball A 601, the disappearance of the extrusion force on the pushing steel ball A 601 makes the pushing steel ball B 603 cancel the extrusion of the inclined surface 502 in the inner support type connector 50, so that the inner support type connector 50 cancels the expansion, to cancel the expansion fixation of the electric energy meter, at this time, the electric energy meter can be taken off from the inner support type connector 50, which is convenient for the quick disassembly of the electric energy meter.

[0049] When the electric energy meter is installed, the electric energy meter is inserted into the inner support type connector 50, and the rotation of the rotating plate 30 drives the cam 302 to rotate to extrude the plug fixing seat 20 to move down, the inner support type connector 50 moves down and inserts into the U-shaped conductive spring 40 and extrudes the reset spring 301, at the same time, the downward movement of the plug fixing seat 20 drives the clutch push rod 702 to move down and pushes the pull frame 707 to move and make the tension spring 708 be pressed, the movement of the pull frame 707 can drive the shorting block A 70 and the shorting block B 701 to move, so that the shorting block A 70 is disconnected with the conductive block A 703 and the conductive block B 704, and the shorting block B 701 is disconnected with the conductive block C 705 and the conductive block D 706, at this time, the commercial power is supplied to the user through the electric energy meter.

[0050] And when the inner support connector 50 is inserted into the U-shaped conductive spring 40, the ejector bevel 604 of the expansion ejector 60 extrudes the ejector steel ball A 601, and the extrusion force is transmitted to the ejector steel ball B 603 through the ejector spring 602, at this time, the ejector steel ball B 603 extrudes the bevel 502 in the inner support connector 50, so that the inner support connector 50 is expanded, and the inner support connector 50 is expanded to fix the electric energy meter, which is convenient for the quick fixing of the electric energy meter.

[0051] The above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that the technical solutions recorded in the foregoing examples can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the specification of the present application.

Claims

1. A cam-pressed switch-type electric energy meter connector, characterized in that: include: Fixing back plate (1); A functional base (2) comprising a fixed base (10) mounted on the fixed back plate (1) and a plug fixing seat (20) provided on the fixed base (10), wherein the fixed base (10) is provided with a wiring terminal capable of being connected to the mains, and the plug fixing seat (20) is provided with a plug corresponding to the wiring terminal and capable of being connected to the electric energy meter; A cam pressing mechanism is mounted on the fixed base (10), the cam pressing mechanism being used to drive the connector to insert into or leave the connection terminal; and An internal conversion connection mechanism is installed on the fixed base (10), and the internal conversion connection mechanism can selectively short-circuit or disconnect the connection terminal of the live wire and the connection terminal of the neutral wire.

2. The cam-pressed switch type electric energy meter connector according to claim 1, characterized in that: The plug fixing seat (20) is detachably arranged on the fixing base (10).

3. The cam-pressed switch type electric energy meter connector according to claim 1, characterized in that: The cam pressing mechanism comprises a shift plate (30) and a return spring (301); a cam (302) is provided on the shift plate (30); the cam (302) is eccentrically rotatably provided on the fixed base (10), and the circumferential side abuts against the top surface of the plug fixing seat (20); one end of the return spring (301) abuts against the connection terminal through a spring insulating sleeve (303), and the other end abuts against the connection plug.

4. The cam-pressed switch type electric energy meter connector according to claim 1, characterized in that: The connection terminal comprises a U-shaped conductive spring piece (40) and a wire fixing sleeve (401) connected to and mounted on the fixed base (10); the connector can be inserted into or removed from the U-shaped conductive spring piece (40); and the wire fixing sleeve (401) can be connected to the mains.

5. The cam-pressed switch type electric energy meter connector according to claim 4, characterized in that: One end of the connector is mounted in the plug fixing seat (20) and is provided with a rectangular conductive contact surface A (501). The conductive contact surface A (501) can be attached to or separated from the conductive contact surface B (402) on the inner surface of the U-shaped conductive spring (40). The other end of the connector can be connected to an electric energy meter.

6. The cam-pressed switch type electric energy meter connector according to claim 1, characterized in that: The functional base (2) further comprises an expansion mechanism, which is used to drive the connector to expand or cancel expansion when the connector is inserted into or removed from the connection terminal.

7. The cam-pressed switch type electric energy meter connector according to claim 6, characterized in that: The expansion mechanism comprises an expansion pin (60) and a pushing assembly; the expansion pin (60) is arranged on the fixed base (10), the connector is an internally supported connector (50), and the pushing assembly is arranged in the internally supported connector (50); when the internally supported connector (50) is inserted into or removed from the terminal, the expansion pin (60) can drive the internally supported connector (50) to expand or cancel expansion through the pushing assembly.

8. The cam-pressed switch-type electric energy meter connector according to claim 7, characterized in that: The pushing assembly includes a push-in steel ball A (601), a push-in spring (602), and a push-in steel ball B (603) arranged in the internal support type connector (50); the push-in steel ball A (601) and the push-in steel ball B (603) are respectively located at two ends of the push-in spring (602); the top end of the expansion ejector pin (60) is provided with an ejector pin inclined surface (604) capable of abutting against the push-in steel ball A (601); and the internal support type connector (50) is provided with an inclined surface (502) abutting against the push-in steel ball B (603).

9. The cam-pressed switch type electric energy meter connector according to claim 1, characterized in that: The internal conversion connection mechanism includes a short-circuit block A (70), a short-circuit block B (701), a tensioning assembly, and a clutch push rod (702); the short-circuit block A (70) and the short-circuit block B (701) are both arranged on the fixed base (10) through the tensioning assembly, and the clutch push rod (702) is arranged on the plug fixing seat (20) corresponding to the tensioning assembly. The clutch push rod (702) can drive the short-circuit block A (70) and the short-circuit block B (701) to move through the tensioning assembly, so as to short-circuit or disconnect the connection terminal of the live wire and the connection terminal of the neutral wire.

10. The cam-pressed switch type electric energy meter connector according to claim 4, characterized in that: The functional base (2) further comprises a wire pressing protection mechanism, wherein the wire pressing protection mechanism is covered on the wire fixing sleeve (401).

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