Wiring terminal of electric energy meter and electric energy meter

Abstract

The invention provides an electric energy meter wiring terminal and an electric energy meter, and relates to the technical field of electric variable measuring instruments. According to the electric energy meter wiring terminal, the electric energy meter wiring terminal is assembled in the shell, the meter tail wire pressing hole is right opposite to the port, when an external wire is connected with the electric energy meter, the external wire is inserted into the port through the meter tail wire pressing hole, the wire cannot be cut when the external wire is locked, and the connection stability of the external wire and the electric energy meter is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric variable measuring instruments, and in particular to an electric energy meter connection terminal and an electric energy meter. Background Art

[0002] The electric energy meter is an electric variable measuring instrument, also known as an electric meter, a fire meter or a kilowatt-hour meter. It is widely used in industrial production and life because of its small size, high accuracy and good reliability. The electric energy meter is electrically connected to the external wire through the terminal.

[0003] When connecting an external wire to an electric energy meter using a terminal block, insert the end of the external wire into the plug-in hole of the terminal block through the wire crimping hole at the end of the meter, and then crimp the wire using the screws provided on the side wall of the plug-in hole. When the wire electric energy meter is disassembled and assembled multiple times, there is a risk that the tightened screws will cut the wire, reducing the stability of the connection between the wire and the electric energy meter. Summary of the invention

[0004] The invention provides an electric energy meter connection terminal and an electric energy meter, which can improve the connection stability between a wire and the electric energy meter.

[0005] In a first aspect, the present invention provides an electric energy meter terminal, comprising: an insulating shell having a port for inserting an external wire; a metal part, which is arranged in the insulating shell and partially extends out of the insulating shell; an insulating pressing piece, which cooperates with the metal part to clamp the external wire and is movably limited in the insulating shell; a locking piece, which is rotatably connected to the insulating shell and connected to the insulating pressing piece to form a proximity or distance between the insulating pressing piece and the metal part.

[0006] In a possible implementation, the insulating shell is a rectangular tubular structure, the insulating pressing plate is parallel to the metal part and abuts against the inner wall of the insulating shell; one end of the locking member passes through the insulating shell and is rotatably connected to the insulating pressing plate, and the locking member is threadedly connected to the insulating shell, and the other end of the locking member has an adjustment end.

[0007] In a possible implementation, the adjustment end is in the shape of a polygonal column.

[0008] In a second aspect, an embodiment of the present invention provides an electric energy meter, comprising: a shell formed with a cavity, a meter tail wire crimping hole being provided on the shell, an electric energy meter terminal as described in any one of the first aspects being assembled in the shell; and the port being opposite to the meter tail wire crimping hole.

[0009] In a possible implementation, the electric energy meter also includes: a connector, which can be connected to the locking piece; a pressing piece, movably connected to the shell, driving the connector to be connected to the locking piece, or making the connector detach from the locking piece; a rotating rod, rotatably inserted into the cavity from one side of the shell and perpendicular to the metal piece; a transmission piece, connecting the rotating rod and the connector, so that when the connector is connected to the locking piece, the connector rotates with the rotating rod.

[0010] In a possible implementation, a through hole is provided on the shell, and the through hole is opposite to the locking piece; the pressing piece includes: a sliding rod, one end of which is inserted into the cavity through the through hole to drive the connecting head and slide axially along the locking piece; a pressing plate connected to the other end of the sliding rod; an elastic piece, which is located outside the shell and pushes the pressing plate toward the side away from the locking piece; and a sealing elastic sleeve, which is fixedly connected to the shell and covers the outside of the pressing plate to seal the through hole.

[0011] In a possible implementation, the transmission member includes: a transmission rod, which is perpendicular to the rotating rod and perpendicular to the sliding rod; a first bevel gear set, which meshes and connects the transmission rod and the sliding rod; a second bevel gear set, and the second bevel gear set includes a second driving wheel and a second driven wheel, the second driving wheel is coaxially sleeved on the transmission rod, and the second driven wheel is connected to the connecting head and the sliding rod; under the action of external force, pressing the pressing plate drives the second driven wheel to move so as to have at least two states: when the connecting head is connected to the locking member, the second driving wheel is meshed with the second driven wheel; when the connecting head is separated from the locking member, the second driving wheel is separated from the second driven wheel; and / or, the sliding rod is inserted into the second driven wheel and is rotationally connected to the second driven wheel.

[0012] In a possible implementation, a guide cylinder is fixedly connected inside the shell and is directly opposite to the meter tail wire pressing hole. The guide cylinder extends from the meter tail wire pressing hole into the cavity and gradually expands. An annular plate is provided on the outer sleeve of the insulating shell, and a sealing ring is fixedly connected to the side of the ring plate close to the meter tail wire pressing hole. An adjusting member is provided between the ring plate and the rotating rod, which rotates with the rotating rod to drive the ring plate to slide axially along the insulating shell.

[0013] In a possible implementation, the adjusting member includes a spur gear sleeved outside the rotating rod, and a rack fixed to the ring plate and meshing with the spur gear.

[0014] In a possible implementation, a plurality of deformation slots are provided on the circumferential side wall of the sealing ring along the axial direction of the sealing ring, and the deformation slots extend from the outer wall of the sealing ring to the inner wall of the sealing ring.

[0015] The present invention provides an electric energy meter terminal and an electric energy meter. The electric energy meter terminal is assembled in a shell, and a wire pressing hole at the end of the meter is made to face a port. When an external wire is connected to the electric energy meter, the external wire is plugged into the port through the wire pressing hole at the end of the meter. When the external wire is locked, the wire will not be sheared, thereby improving the connection stability between the external wire and the electric energy meter.

[0016] In addition, after the present invention connects the connector to the locking member through the pressing member, the rotating rod is rotated. Under the action of the transmission member, the rotating rod rotates to drive the connector to rotate, thereby driving the locking member to rotate to complete the fixing or removal of the external wire and the electric energy meter; when there are multiple electric energy meter terminals arranged in sequence along the length direction of the rotating rod connected to the housing, multiple groups of pressing members and transmission members are correspondingly set. When the locking member needs to be rotated, it is only necessary to press the corresponding pressing member to connect the connector to the locking member. At this time, the other connectors are in a separated state from the locking member, and the rotating rod can be rotated to adjust the multiple locking members, which is convenient to use. At the same time, the above arrangement does not require multiple operating holes for rotating the locking member to be opened on the housing, thereby achieving the effect of improving the sealing of the electric energy meter, thereby improving the measurement accuracy of the electric energy meter.

[0017] The present invention can also arrange the pressing piece to include an elastic piece, so that when the pressing piece is in a natural state, the connector and the locking piece are in a separated state. At this time, the locking piece will not rotate when the rotating rod is rotated, and the locking piece will not rotate when only the pressing plate is pressed, thereby avoiding the loosening of the external wire caused by accidentally touching the pressing piece or the rotating rod. By arranging a sealing elastic sleeve, it is convenient for the staff to press the pressing plate, and at the same time, the through hole can be sealed to improve the sealing effect of the electric energy meter, thereby further improving the measurement accuracy of the electric energy meter.

[0018] The present invention can also be configured to be rotatably connected to the second driven wheel by setting a sliding rod. When the rotating rod drives the connecting head to rotate, thereby driving the locking member to rotate, the pressing plate and the sliding rod will not rotate relative to each other. Furthermore, when the rotating rod is rotated, the pressing plate and the sealing elastic sleeve will not rotate relative to each other, thereby reducing the wear between the two and improving the smoothness when the rotating rod is rotated.

[0019] The present invention can also arrange a ring plate and a sealing ring outside the insulating housing, and when the rotating rod is rotated to lock the external wire, the sealing ring is inserted into the guide cylinder under the action of the adjusting member, and under the guidance of the inner wall of the guide cylinder, the sealing ring is deformed and pressed against the insulation layer of the external wire to improve the sealing performance after the external wire is connected to the electric energy meter. A deformation seam is arranged on the sealing ring to facilitate the deformation of the sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of an electric energy meter connection terminal provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall structure of an electric energy meter provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the internal structure of an electric energy meter provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the internal parts of an electric energy meter provided by an embodiment of the present invention; Figure 5 It is a cross-sectional schematic diagram of an electric energy meter provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0022] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0023] In the description of the present invention, unless otherwise specified, " / " means "or", for example, A / B can mean A or B. "And / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, "at least one" and "plurality" refer to two or more. The words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not limit them to be different.

[0024] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0025] In addition, the terms "including" and "having" and any variations thereof mentioned in the description of this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not limited to the listed steps or modules, but may optionally include other steps or modules that are not listed, or may optionally include other steps or modules that are inherent to these processes, methods, products or devices.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following will be described through specific embodiments in conjunction with the accompanying drawings of the present invention.

[0027] Embodiment 1 The present embodiment relates to an electric energy meter connection terminal to improve the connection stability between a wire and an electric energy meter.

[0028] In terms of overall structure, Figure 1 As shown, the electric energy meter terminal comprises: an insulating housing 1 having a port 101 for inserting an external wire 2; a metal member 3, which is arranged in the insulating housing 1 and partially extends out of the insulating housing 1; an insulating pressing piece 4, which cooperates with the metal member 3 to clamp the external wire 2 and is movably limited in the insulating housing 1; a locking member 5, which is rotatably connected to the insulating housing 1 and connected to the insulating pressing piece 4, so as to form a close or distant relationship between the insulating pressing piece 4 and the metal member 3.

[0029] By providing an insulating shell 1 and providing an insulating pressing piece 4 in the insulating shell 1, when the external wire 2 is inserted into the insulating shell 1 through the port 101, the locking piece 5 is rotated to push the insulating pressing piece 4 so that the external wire 2 is pressed against the metal piece 3; the locking piece 5 is rotated in the opposite direction to make the insulating pressing piece 4 away from the metal piece 3 so as to facilitate the external wire 2 to be taken out of the insulating shell 1. In the process of locking the external wire 2, the external wire 2 will not be sheared, thereby improving the connection stability between the external wire 2 and the power transformer.

[0030] Based on the above overall introduction, Figure 1 As shown, as an implementable embodiment, the insulating shell 1 in this embodiment is a rectangular tubular structure, the insulating pressing plate 4 is parallel to the metal part 3 and abuts against the inner wall of the insulating shell 1; one end of the locking member 5 passes through the insulating shell 1 and is rotatably connected to the insulating pressing plate 4, and the locking member 5 is threadedly connected to the insulating shell 1, and the other end of the locking member 5 has an adjustment terminal 501.

[0031] Specifically, the adjustment end 501 is in the shape of a polygonal prism, for example, a quadrangular prism or a hexagonal prism. The metal part 3 is a sheet structure, and one end of the metal part 3 close to the port 101 is located in the insulating housing 1 and fixedly connected to the insulating housing 1, and the other end of the metal part 3 extends outside the insulating housing 1 and is electrically connected to the main board in the electric energy meter.

[0032] The electric energy meter terminal described in the present application will not cause shearing to the external wire 2 during the process of locking the external wire 2, thereby improving the connection stability between the external wire 2 and the electric energy transformer.

[0033] Embodiment 2 This embodiment relates to an electric energy meter, such as Figures 2 to 5 As shown, it includes a shell 6 formed with a cavity 601 , a meter tail wire pressing hole 602 is opened on the shell 6 , and the above electric energy meter connection terminal is assembled in the shell 6 ; the port 101 is directly opposite to the meter tail wire pressing hole 602 .

[0034] By assembling the above-mentioned electric energy meter terminal in the shell 6 and making the wire crimping hole 602 at the end of the meter face the port 101, when connecting the external wire 2 to the electric energy meter, the external wire 2 is inserted into the port 101 through the wire crimping hole 602 at the end of the meter. When locking the external wire 2, the wire will not be sheared, thereby improving the connection stability between the external wire 2 and the electric energy meter.

[0035] Based on the fact that the housing 6 is equipped with the electric energy meter connection terminal as described above, Figures 4 to 5 As shown, in order to improve the sealing of the electric energy meter, the electric energy meter also includes a connector 7, which can be connected to the locking member 5; a pressing member 8, which is movably connected to the shell 6, drives the connector 7 to be connected to the locking member 5, or makes the connector 7 detach from the locking member 5; a rotating rod 9, which is rotatably inserted into the cavity 601 from one side of the shell 6 and is perpendicular to the metal member 3; a transmission member 10, which connects the rotating rod 9 and the connector 7, so that when the connector 7 is connected to the locking member 5, the connector 7 rotates with the rotating rod 9.

[0036] It is understandable that the electric energy meter often needs to be provided with a plurality of electric energy meter terminals as described above, and the plurality of electric energy meter terminals are arranged along the length direction of the rotating rod 9, and a corresponding number of meter tail wire pressing holes 602 are synchronously opened on the housing 6. In this embodiment, as an implementable manner, the insulating housing 1 of the rectangular tubular structure is fixed in the housing 6 by a protrusion, that is, one end of the insulating housing 1 close to the port 101 is suspended in the housing 6.

[0037] After the connector 7 is connected to the locking member 5 by the pressing member 8, the rotating rod 9 is rotated. Under the action of the transmission member 10, the rotating rod 9 rotates to drive the connector 7 to rotate, thereby driving the locking member 5 to rotate to complete the fixing or removal of the external wire 2 and the electric energy meter; when there are multiple electric energy meter terminals arranged in sequence along the length direction of the rotating rod 9 connected to the housing 6, multiple sets of pressing members 8 and transmission members 10 are correspondingly set. When the locking member 5 needs to be rotated, it is only necessary to press the corresponding pressing member 8 to connect the connector 7 to the locking member 5. At this time, the other connectors 7 and the locking member 5 are in a separated state, and the rotating rod 9 can be rotated to adjust the multiple locking members 5, which is convenient to use. At the same time, the above arrangement does not require multiple operating holes for rotating the locking member 5 to be opened on the housing 6, thereby achieving the effect of improving the sealing of the electric energy meter, thereby improving the measurement accuracy of the electric energy meter.

[0038] It can be understood that when the adjusting end 501 connected to the locking member 5 is in the shape of a polygonal prism, the connecting head 7 is a sleeve adapted thereto, and when the connecting head 7 is connected to the locking member 5, that is, the connecting head 7 is slidably mounted on the adjusting end 501. For example, when the adjusting end 501 is in the shape of a quadrangular prism, a groove adapted to the quadrangular prism is formed inside the connecting head 7.

[0039] As an implementable approach, Figures 4 to 5 As shown, a through hole 603 is provided on the shell 6, and the through hole 603 is opposite to the locking member 5; the pressing member 8 includes: a sliding rod 801, one end of the sliding rod 801 is inserted into the cavity 601 through the through hole 603 to drive the connecting head 7 and slide axially along the locking member 5; a pressing plate 802 is connected to the other end of the sliding rod 801; an elastic member 803 is located outside the shell 6 and pushes the pressing plate 802 to the side away from the locking member 5; a sealing elastic sleeve 804 is fixedly connected to the shell 6 and covers the outside of the pressing plate 802 to form a seal for the through hole 603.

[0040] By setting the pressing member 8 to include an elastic member 803, the connector 7 and the locking member 5 are in a separated state when the pressing member 8 is in a natural state. At this time, the locking member 5 will not rotate when the rotating rod 9 is rotated, and the locking member 5 will not rotate when only the pressing plate 802 is pressed, thereby avoiding the loosening of the external wire 2 caused by accidentally touching the pressing member 8 or the rotating rod 9. By setting the sealing elastic sleeve 804, it is convenient for the staff to press the pressing plate 802, and at the same time, the through hole 603 can be sealed to improve the sealing effect of the electric energy meter, thereby further improving the measurement accuracy of the electric energy meter.

[0041] On the basis that the pressing member 8 includes a pressing plate 802 and a sliding rod 801, in order to realize the synchronous rotation of the connecting head 7 by rotating the rotating rod 9, as shown in FIG. Figures 4 to 5As shown, specifically, the transmission member 10 includes: a transmission rod 1001, which is perpendicular to the rotating rod 9 and perpendicular to the sliding rod 801; a first bevel gear set 1002, the first bevel gear set 1002 is meshed and connected to the transmission rod 1001 and the sliding rod 801; a second bevel gear set 1003, the second bevel gear set 1003 includes a second driving wheel 1003a and a second driven wheel 1003b, the second driving wheel 1003a is coaxially sleeved on the transmission rod 1001, and the second driven wheel 1003b is connected to the connecting head 7 and the sliding rod 801; under the action of external force, pressing the pressing plate 802 drives the second driven wheel 1003b to move so that it has at least two states: when the connecting head 7 is connected to the locking member 5, the second driving wheel 1003a is meshed with the second driven wheel 1003b; when the connecting head 7 is separated from the locking member 5, the second driving wheel 1003a is separated from the second driven wheel 1003b.

[0042] Specifically, the first bevel gear set 1002 includes a first driving wheel 1002a and a first driven wheel 1002b, the first driving wheel 1002a is coaxially sleeved on the rotating rod 9, the first driven wheel 1002b is coaxially sleeved on the transmission rod 1001, and the first driving wheel 1002a and the first driven wheel 1002b are meshed, so that the transmission rod 1001 and the slide bar 801 are meshed and connected through the first bevel gear set 1002. When the rotating rod 9 is rotated, the transmission rod 1001 is rotated through the transmission of the first bevel gear set 1002, and the connecting head 7 is driven to rotate under the transmission action of the second bevel gear set 1003, thereby driving the locking member 5 to rotate.

[0043] Preferably, the slide bar 801 is inserted into the second driven wheel 1003b and is rotationally connected with the second driven wheel 1003b. That is, the slide bar 801 is coaxially inserted into the second driven wheel 1003b and is rotatably connected with the second driven wheel 1003b, and when the slide bar 801 and the housing 6 slide relative to each other, the second driven wheel 1003b and the slide bar 801 move synchronously. By setting the slide bar 801 and the second driven wheel 1003b to be rotationally connected, when the rotating rod 9 drives the connector 7 to rotate to drive the locking member 5 to rotate, the pressing plate 802 and the slide bar 801 will not rotate relative to each other, and then when the rotating rod 9 is rotated, the pressing plate 802 and the sealing elastic sleeve 804 will not rotate relative to each other, thereby reducing the wear between the two and improving the smoothness when the rotating rod 9 is rotated.

[0044] Based on the setting of the rotating rod 9, in order to make the electric energy meter terminal lock the external wire 2 while reducing the gap between the external wire 2 and the meter tail wire pressing hole 602, the sealing of the electric energy meter is improved. A guide cylinder 604 facing the meter tail wire pressing hole 602 is fixedly connected in the housing 6, and the guide cylinder 604 extends from the meter tail wire pressing hole 602 into the cavity 601 and gradually expands; a ring plate 102 is provided on the outer shell of the insulating housing 1, and a sealing ring 103 is fixedly connected to the side of the ring plate 102 close to the meter tail wire pressing hole 602; an adjusting member 11 is provided between the ring plate 102 and the rotating rod 9, which rotates with the rotating rod 9 to drive the ring plate 102 to slide axially along the insulating housing 1.

[0045] Specifically, as an implementable method, Figures 4 to 5 As shown, the adjusting member 11 includes a flat gear 1101 sleeved on the rotating rod 9, and a rack 1102 fixed to the ring plate 102 and meshing with the flat gear 1101. Preferably, a plurality of deformation slots 103a are provided on the circumferential side wall of the sealing ring 103 along the axial direction of the sealing ring 103, and the deformation slots 103a extend from the outer wall of the sealing ring 103 to the inner wall of the sealing ring 103.

[0046] By arranging the ring plate 102 and the sealing ring 103 on the outer surface of the insulating housing 1, when the rotating rod 9 is rotated to lock the external wire 2, the sealing ring 103 is inserted into the guide cylinder 604 under the action of the adjusting member 11, and the sealing ring 103 is deformed and pressed against the insulation layer of the external wire 2 under the guidance of the inner wall of the guide cylinder 604, so as to improve the sealing performance after the external wire 2 is connected to the electric energy meter. By arranging the deformation seam 103a on the sealing ring 103, the sealing ring 103 is deformed and clamped in the wire pressing hole 602 at the end of the meter.

[0047] The electric energy meter described in this embodiment, when the external wire 2 is connected, the end of the external wire 2 is inserted into the port 101 through the wire pressing hole 602 at the end of the meter, and the end of the external wire 2 is located on the metal part 3, and the corresponding pressing plate 802 above the external wire 2 is pressed. At this time, the second driven wheel 1003b and the second driving wheel 1003a are meshed, and the connector 7 is connected to the adjustment end 501, and the rotating rod 9 is rotated. Under the action of the first bevel gear set 1002, the transmission rod 1001 and the second bevel gear set 1003, the locking member 5 is driven to rotate, thereby locking the external wire 2 in the electric energy meter. At the same time, when the rotating rod 9 is rotated, under the action of the rack 1102 and the gear, the ring plate 102 drives the sealing ring 103 to be inserted into the wire pressing hole 602 at the end of the meter to improve the sealing of the electric energy meter.

[0048] The embodiments described above are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be included in the protection scope of the present invention.

Claims

1. An electric energy meter terminal, characterized in that: include: An insulating housing (1) having a port (101) for inserting an external wire (2); A metal part (3) is arranged in the insulating housing (1) and partially extends out of the insulating housing (1); An insulating pressing sheet (4) cooperates with the metal piece (3) to clamp the external wire (2) and is movably limited in position within the insulating housing (1); A locking member (5) is rotatably connected to the insulating housing (1) and connected to the insulating pressing piece (4) to enable the insulating pressing piece (4) and the metal member (3) to move closer or farther away from each other.

2. The electric energy meter terminal according to claim 1, characterized in that: The insulating housing (1) is in a rectangular tubular structure; the insulating pressing piece (4) is parallel to the metal piece (3) and abuts against the inner wall of the insulating housing (1); one end of the locking piece (5) passes through the insulating housing (1) and is rotatably connected to the insulating pressing piece (4), and the locking piece (5) is threadedly connected to the insulating housing (1); the other end of the locking piece (5) has an adjustment terminal (501).

3. The electric energy meter terminal according to claim 2, characterized in that: The regulating end (501) is in the shape of a polygonal column.

4. An electric energy meter, comprising a housing (6) formed with a cavity (601), the housing (6) being provided with a meter tail wire pressing hole (602), characterized in that: The housing (6) is equipped with an electric energy meter terminal as claimed in any one of claims 1 to 3; The port (101) is directly opposite to the meter tail wire pressing hole (602).

5. The electric energy meter according to claim 4, characterized in that: Also includes: A connecting head (7), wherein the connecting head (7) can be connected to the locking member (5); A pressing member (8) is movably connected to the housing (6) to drive the connecting head (7) to connect to the locking member (5) or to make the connecting head (7) detach from the locking member (5); A rotating rod (9) is rotatably inserted into the cavity (601) from one side of the housing (6) and is perpendicular to the metal member (3); The transmission member (10) connects the rotating rod (9) and the connecting head (7) so that when the connecting head (7) is connected to the locking member (5), the connecting head (7) rotates along with the rotating rod (9).

6. The electric energy meter according to claim 5, characterized in that: The housing (6) is provided with a through hole (603), and the through hole (603) is directly opposite to the locking member (5); the pressing member (8) comprises: A sliding rod (801), one end of which is inserted into the cavity (601) through the through hole (603) to drive the connector (7) and slide axially along the locking member (5); A pressing plate (802) connected to the other end of the sliding rod (801); An elastic member (803) is located outside the housing (6) and pushes the pressing plate (802) toward a side away from the locking member (5); The sealing elastic sleeve (804) is fixedly connected to the housing (6) and covers the outside of the pressing plate (802) to form a seal for the through hole (603).

7. The electric energy meter according to claim 6, characterized in that: The transmission member (10) comprises: A transmission rod (1001) is perpendicular to the rotating rod (9) and perpendicular to the sliding rod (801); A first bevel gear set (1002), the first bevel gear set (1002) meshingly connecting the transmission rod (1001) and the sliding rod (801); A second bevel gear set (1003), the second bevel gear set (1003) comprising a second driving wheel (1003a) and a second driven wheel (1003b), the second driving wheel (1003a) being coaxially sleeved on the transmission rod (1001), and the second driven wheel (1003b) being connected to the connecting head (7) and the sliding rod (801); Under the action of external force, pressing the pressing plate (802) drives the second driven wheel (1003b) to move so as to have at least two states: When the connecting head (7) is connected to the locking member (5), the second driving wheel (1003a) is meshed with the second driven wheel (1003b); When the connecting head (7) is separated from the locking member (5), the second driving wheel (1003a) is separated from the second driven wheel (1003b); And / or, the sliding rod (801) is inserted into the second driven wheel (1003b) and is rotationally connected to the second driven wheel (1003b).

8. The electric energy meter according to claim 5, characterized in that: A guide tube (604) is fixedly connected to the housing (6) and is directly opposite to the meter tail wire pressing hole (602). The guide tube (604) extends from the meter tail wire pressing hole (602) into the cavity (601) and gradually expands. The insulating housing (1) is provided with a ring plate (102) on its outer sleeve, and a sealing ring (103) is fixedly connected to one side of the ring plate (102) close to the meter tail wire pressing hole (602); An adjusting member (11) is provided between the ring plate (102) and the rotating rod (9), and rotates with the rotating rod (9) to drive the ring plate (102) to slide axially along the insulating housing (1).

9. The electric energy meter according to claim 8, characterized in that: The adjusting member (11) comprises a flat gear (1101) sleeved outside the rotating rod (9), and a rack (1102) fixedly connected to the ring plate (102) and meshing with the flat gear (1101).

10. The electric energy meter according to claim 8, characterized in that: A plurality of deformation slits (103a) are provided on the circumferential side wall of the sealing ring (103) along the axial direction of the sealing ring (103); the deformation slits (103a) penetrate from the outer wall of the sealing ring (103) to the inner wall of the sealing ring (103).

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