Electric energy metering junction box and operation method thereof

Abstract

The invention discloses an electric energy metering junction box and an operation method thereof.The electric energy metering junction box comprises a junction box body, the junction box body is provided with a containing groove, a wire holder is arranged on the groove wall of the top of the containing groove, a sliding groove is formed in one side of the wire holder, and a first connecting hole and a second connecting hole are formed in the groove bottom of the sliding groove at intervals; the adjusting mechanism comprises a gear, the gear is arranged outside the first binding post in a sleeving mode, the connecting piece is provided with an installation opening in a penetrating mode, a rack is arranged on the cavity wall in the vertical direction of the installation opening, and the gear is meshed with the rack. When the first binding post is rotated, the gear is engaged with the rack to push the connecting piece to move and abut against or be spaced from the second binding post. According to the invention, by screwing the first binding post, the movement of the connecting sheet can be realized through the engagement of the gear and the rack, and the convenience of connection or separation of the connecting sheet and the second binding post is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy metering, and in particular to an electric energy metering junction box and an operating method thereof. Background Art

[0002] Electric energy metering junction boxes are widely used in the power industry. By changing the position of the connecting piece inside the junction box, the internal wiring structure can be changed to form different circuits.

[0003] At present, the application of energy metering junction boxes is very extensive. Its function is to ensure that the energy meter can be replaced and disassembled without disconnecting the load, while ensuring the safety of live operators, and also to reserve wiring terminals for measurement. However, in the actual operation of most energy metering junction boxes, after opening the outer cover, when moving the connecting piece to connect with another terminal, the operator needs to hold a screwdriver with one hand to tighten the screw and the other hand to control the movement of the connecting piece. The operation is inconvenient, time-consuming and labor-intensive, affecting the work efficiency and increasing the risk of electric shock for the operator. Summary of the invention

[0004] The object of the present invention is to provide an electric energy metering junction box and an operating method thereof, which have a simple structure, are easy to operate, and improve the convenience of adjusting the connecting piece.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] In a first aspect, an electric energy metering junction box is provided, comprising a junction box body, a junction seat, a first terminal post, a second terminal post, a connecting piece and an adjusting mechanism, wherein the junction box body is provided with a receiving groove on one side along a first direction, the terminal seat is provided on the groove wall at the top of the receiving groove in a vertical direction, the side of the terminal seat adjacent to the notch of the receiving groove is a first side surface, the first side surface is provided with a sliding groove, the length of the sliding groove extends along a second direction, the groove bottom of the sliding groove is provided with a first connecting hole and a second connecting hole spaced apart along the second direction, the first terminal post is rotatably connected to the first connecting hole, the second terminal post is detachably connected to the second connecting hole, and the length of the connecting piece is along the second direction The connecting piece is slidably arranged in the sliding groove, the adjusting mechanism includes a gear and a rack, the gear is sleeved on the outer peripheral side of the first terminal, the connecting piece is penetrated by a mounting opening along the first direction, the length of the mounting opening extends along the second direction, the rack is arranged on one of the two cavity walls along the vertical direction of the mounting opening, the length of the rack extends along the second direction, the gear is meshed with the rack, and the first terminal is rotated, so that the connecting piece can be pushed to move along the second direction and abut against or spaced from the second terminal through the meshing of the gear and the rack, and the first direction, the second direction and the vertical direction are arranged perpendicular to each other.

[0007] As a preferred solution of the electric energy metering junction box, a wiring hole connected to the second connecting hole is opened on the bottom side of the wiring seat, and the wiring hole is used for the cable to pass through. The second connecting hole is a threaded hole, and the second terminal is threadedly connected to the second connecting hole. Screwing the second terminal can clamp the end of the cable between the second terminal and the bottom of the second connecting hole.

[0008] As a preferred solution of the electric energy metering junction box, the adjustment mechanism also includes a bearing, an adjustment tube, a clamping member and a driving member, the end of the first terminal away from the connecting plate is connected to the inner ring of the bearing, the outer ring of the peripheral side is connected to the adjustment tube, the adjustment tube is slidably connected to the first connecting hole, a plurality of clamping grooves are arranged on the hole wall of the first connecting hole at intervals along the first direction, a third connecting hole connected to the inner cavity of the adjusting tube is opened on the outer peripheral side of the adjusting tube, the clamping member is slidably connected to the third connecting hole, the driving member is arranged in the inner cavity, and the driving member is transmission-connected to the clamping member, so that the clamping member can move along the radial direction of the adjusting tube and be clamped or spaced with the clamping groove.

[0009] As a preferred solution of the electric energy metering junction box, the adjustment mechanism includes two said clips, the hole wall of the first connecting hole is respectively provided with a plurality of said clip grooves on both sides along the vertical direction, the two said clips are connected by a first elastic member, the first elastic member always has a tendency to drive the two said clips closer to each other, a pushing block is provided at the driving end of the driving member, and the driving member drives the pushing block to move between the two said clips along the first direction to push the two said clips away from each other and be clamped in the said clip grooves.

[0010] As a preferred solution for the electric energy metering junction box, the two ends of the two clamping parts adjacent to each other are each provided with an inclined surface, the two inclined surfaces form a guide groove, the size of the guide groove adjacent to the end of the driving member is larger than the size of the guide groove away from the end of the driving member, and the pushing block is slidably connected to the inclined surface.

[0011] As a preferred solution of the electric energy metering junction box, the adjustment mechanism also includes a guide rod extending along the vertical direction, the guide rod is arranged in the inner cavity, the clamping part includes a clamping portion and a connecting portion arranged at an angle, and a fourth connecting hole is provided on the connecting portion along the vertical direction, the fourth connecting hole is slidably matched with the guide rod, the clamping portion is slidably matched with the third connecting hole, the clamping portion can be inserted into the clamping groove, the first elastic part includes a spring, the spring is sleeved on the outer periphery of the guide rod, and one spring is respectively provided on the side away from each other of the two connecting portions, and the end of the spring away from the connecting portion abuts against the cavity wall of the inner cavity.

[0012] As a preferred solution for the electric energy metering junction box, the driving member includes an unlocking rod, a second elastic member and a pull ring, the unlocking rod is arranged in the inner cavity, one end of the unlocking rod is connected to the pushing block, the first terminal is penetrated by a fifth connecting hole along the first direction, the end of the unlocking rod away from the pushing block passes through the five connecting holes and extends to the outside of the terminal block, and the end of the unlocking rod away from the pushing block is connected to the pull ring, the outer peripheral side of the unlocking rod is provided with a stopping portion in an annular protrusion along its own central axis, and the stopping portion is located in the inner cavity, the stopping portion is connected to the bearing through the second elastic member, and the second elastic member always has a tendency to drive the stopping portion to move away from the bearing, so that the pushing block at the end of the unlocking rod always pushes the clamping member to clamp with the clamping groove.

[0013] As a preferred solution of the electric energy metering junction box, the adjustment mechanism also includes a limit block, and a limit groove is also provided on the first side surface. The limit groove is arranged adjacent to the first connecting hole, and the limit groove is connected to the first connecting hole. The limit block is arranged on the outer peripheral side of the adjustment tube, and the length of the limit block extends along the first direction. The limit block is slidably connected to the limit groove.

[0014] As a preferred solution of the electric energy metering junction box, the electric energy metering junction box also includes a guide cylinder and a clamping mechanism. The guide cylinder is provided on the groove wall at the bottom of the accommodating groove in the vertical direction. The length of the guide cylinder extends along the vertical direction, and part of the guide cylinder extends outside the accommodating groove. The guide cylinder is used for the cable to pass through. The clamping mechanism includes a fixed sleeve, two third elastic members and two clamping blocks. The fixed sleeve is provided on the groove wall at the bottom of the accommodating groove in the vertical direction, and the fixed sleeve is sleeved on the outer periphery of the guide cylinder. The two clamping blocks are spaced apart along the second direction to form a clamping groove for clamping the cable, and each of the clamping blocks is slidably connected to the fixed sleeve through a third elastic member.

[0015] In a second aspect, a method for operating an electric energy metering junction box is provided, providing the electric energy metering junction box, comprising the following steps:

[0016] S10, installing the second terminal of the electric energy metering junction box into the second connecting hole of the terminal socket of the electric energy metering junction box, so that the second terminal is connected to the designated cable;

[0017] S20, screwing the first terminal of the electric energy metering junction box to rotate the gear of the adjustment mechanism of the electric energy metering junction box sleeved on the outer peripheral side of the first terminal, so as to drive the rack transmission of the adjustment mechanism on the connecting piece of the electric energy metering junction box, thereby pushing the connecting piece to slide along the sliding groove of the terminal seat in the second direction until the connecting piece abuts against the second terminal.

[0018] The beneficial effects of the present invention are as follows: through the setting of the adjustment mechanism, the operator can realize the movement of the connecting piece by screwing the first terminal, that is, through the engagement of the gear and the rack, thereby improving the convenience of connecting or spacing the connecting piece and the second terminal, and the setting of the sliding groove can improve the guidance and stability of the movement of the connecting piece. The operation is simple, convenient and fast, and quick operation can be achieved without the aid of external tools such as screwdrivers, saving time and effort, effectively improving the operation efficiency of the connection of the electric energy metering junction box, and reducing the risk of electric shock for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0020] Figure 1 is a schematic structural diagram of an electric energy metering junction box according to an embodiment of the present invention;

[0021] Figure 2 is a partial cross-sectional view of an electric energy metering junction box according to an embodiment of the present invention Figure 1 ;

[0022] Figure 3 yes Figure 2 An enlarged schematic diagram of point A;

[0023] Figure 4 is a schematic structural diagram of a wiring socket according to an embodiment of the present invention;

[0024] Figure 5 is a schematic structural diagram of a connecting piece according to an embodiment of the present invention;

[0025] Figure 6 is a schematic diagram of the cooperation between the first terminal and the adjustment mechanism of an embodiment of the present invention;

[0026] Figure 7 is a partial cross-sectional view of an electric energy metering junction box according to an embodiment of the present invention Figure 2 .

[0027] In the figure:

[0028] 1. Junction box body; 11. Accommodating groove; 2. Junction seat; 21. First side surface; 22. Sliding groove; 23. First connecting hole; 24. Second connecting hole; 25. Snap-fit ​​groove; 26. Limiting groove; 3. First terminal post; 4. Second terminal post; 5. Connecting piece; 51. Mounting port; 6. Adjustment mechanism; 61. Gear; 62. Rack; 63. Bearing; 64. Adjustment tube; 641. Inner cavity; 65. Snap-fit ​​piece; 651. Inclined surface; 652. Clamping part; 653, connecting part; 66, driving part; 661, pushing block; 662, unlocking rod; 663, second elastic part; 664, pull ring; 665, stopping part; 67, first elastic part; 68, guide rod; 69, limit block; 7, guide cylinder; 8, clamping mechanism; 81, fixing sleeve; 82, third elastic part; 83, clamping block; 831, clamping part; 832, U-shaped mounting part; 834, pressing part; 9, display controller. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0032] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0033] like Figures 1 to 7As shown, the electric energy metering junction box of the embodiment of the present invention includes a junction box body 1, a junction seat 2, a first terminal 3, a second terminal 4, a connecting piece 5 and an adjusting mechanism 6. The junction box body 1 is provided with a receiving groove 11 on one side along a first direction (the first direction is the X direction in the figure), and the groove wall of the top of the receiving groove 11 along the vertical direction is provided with a junction seat 2. The side of the junction seat 2 adjacent to the notch of the receiving groove 11 is a first side surface 21. The first side surface 21 is provided with a sliding groove 22. The length of the sliding groove 22 extends along a second direction (the second direction is the Y direction in the figure), and the bottom of the sliding groove 22 is provided with a first connecting hole 23 and a second connecting hole 24 arranged at intervals along the second direction (the bottom of the sliding groove 22 is a groove wall parallel to the sliding groove 22 and the first side surface 21), and the first terminal 3 is rotatably connected to the first connecting hole 23. The second terminal 4 is detachably connected to the second connecting hole 24, the length of the connecting piece 5 extends along the second direction, and the connecting piece 5 is slidably set in the sliding groove 22, the adjustment mechanism 6 includes a gear 61 and a rack 62, the gear 61 is sleeved on the outer peripheral side of the first terminal 3, the connecting piece 5 is penetrated by a mounting opening 51 along the first direction, the length of the mounting opening 51 extends along the second direction, and a rack 62 is provided on one of the two cavity walls along the vertical direction of the mounting opening 51 (the vertical direction is the Z direction shown in the figure), the length of the rack 62 extends along the second direction, the gear 61 is engaged with the rack 62, and the first terminal 3 is rotated, and the connecting piece 5 can be pushed to move along the second direction and abut or spaced with the second terminal 4 through the engagement of the gear 61 and the rack 62, and the first direction, the second direction and the vertical direction are arranged perpendicular to each other.

[0034] It is understandable that, by setting the adjustment mechanism 6, the operator can realize the movement of the connecting piece 5 by screwing the first terminal 3, that is, by the meshing of the gear 61 and the rack 62, thereby improving the convenience of connecting or spacing the connecting piece 5 with the second terminal 4, and the setting of the sliding groove 22 can improve the guidance and stability of the movement of the connecting piece 5, and the operation is simple, convenient and fast, and can be quickly operated without the aid of external tools such as screwdrivers, saving time and effort, effectively improving the operating efficiency of the connection of the electric energy metering terminal box, and reducing the risk of electric shock to the operator. In addition, an insulating part is provided at one end of the first terminal 3 away from the terminal seat 2. Through the setting of the insulating part, when the operator needs to move the connecting piece 5, he only needs to screw the insulating part, thereby reducing the electric shock between the operator and the first terminal 3, and effectively ensuring the operating safety of the operator.

[0035] Specifically, a wiring hole communicating with the second connection hole 24 is provided on the bottom side of the wiring seat 2, and the wiring hole is used for passing the cable, and the second connection hole 24 is a threaded hole, and the second terminal 4 is threadedly connected to the second connection hole 24, and the second terminal 4 can be screwed to clamp the end of the cable between the second terminal 4 and the bottom of the second connection hole 24. In this embodiment, the second terminal 4 is a bolt, and in actual application, the cable is inserted from the wiring hole into the first connection hole 23, and the wiring hole is arranged adjacent to the bottom of the second connection hole 24, and the bolt is screwed to clamp the end of the cable between the end of the bolt and the bottom of the first connection hole 23, so that the cable and the second terminal 4 are electrically conductive, and the threaded connection is convenient for assembly and disassembly, and the connection is stable, which effectively ensures the connection stability between the second terminal 4 and the cable.

[0036] Optionally, an arc-shaped abutment groove is recessed on one side of the connecting piece 5 toward the second terminal 4, and the groove wall of the abutment groove abuts against the outer peripheral side of the second terminal 4. By setting the abutment groove, the abutment area between the connecting piece 5 and the second terminal 4 is increased, thereby improving the stability of the connection between the connecting piece 5 and the second terminal 4.

[0037] Further, Figures 2 to 6 As shown, since there are cables with different wire diameters for connection, the screwing depth of the bolt may be different. In order to ensure that the side of the connecting piece 5 away from the terminal block 2 along the first direction can abut against the head of the bolt, the adjusting mechanism 6 of this scheme also includes a bearing 63, an adjusting tube 64, a clamping member 65 and a driving member 66. The end of the first terminal 3 away from the connecting piece 5 is connected to the inner ring of the bearing 63, and the outer ring of the peripheral side is connected to the adjusting tube 64. The adjusting tube 64 is slidably connected to the first connecting hole 23. A plurality of clamping grooves 25 are arranged on the hole wall of the first connecting hole 23 at intervals along the first direction. A third connecting hole connected to the inner cavity 641 of the adjusting tube 64 is opened on the outer peripheral side of the adjusting tube 64. The clamping member 65 is slidably connected to the third connecting hole. The driving member 66 is arranged in the inner cavity 641, and the driving member 66 is transmission-connected to the clamping member 65, so that the clamping member 65 can move along the radial direction of the adjusting tube 64 and be clamped or spaced with the clamping groove 25.

[0038] For example, the cable has a thicker wire diameter, and the distance between the end of the bolt and the terminal block 2 increases. At this time, the driving member 66 is controlled to separate the clamping member 65 from the clamping groove 25, and the driving member 66 is kept in a continuously driven state, and the first terminal 3 is dragged to drive the connecting piece 5 to move to a specified position along the first direction away from the terminal block 2, and the adjustment tube 64 moves outward with the first terminal 3. At this time, the clamping member 65 is opposite to another clamping groove 25, and the driving member 66 is controlled to make the clamping member 65 clamped in the clamping groove 25 adjacent to the connecting piece 5 to achieve the adjustment of the connecting piece 5. And through the setting of the bearing 63, it can be ensured that the screwing operation of the first terminal 3 does not affect the movement of the adjustment tube 64, and the relative stability of the adjustment tube 64 is ensured. Of course, in some embodiments, the adjustment tube 64 and the terminal block 2 can be connected by directly pushing the clamping member 65 to abut against the wall of the first connecting hole 23 through the driving member 66, replacing the structural setting in which the clamping member 65 must be opposite to the clamping groove 25 to be clamped, which can effectively ensure the freedom of adjustment of the adjustment tube 64 and the connecting plate 5 along the first direction.

[0039] also, Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, a limiting portion is also provided on the cavity wall along the vertical direction of the installation opening 51 of the connecting piece 5, and limiting portions are provided on both sides of the rack 62 along the first direction, and the gear 61 is located between the two limiting portions, so that when the first terminal 3 moves along the first direction, the first terminal 3 can pull the gear 61 and drag the connecting piece 5 to move, thereby ensuring the connection stability and adjustment convenience between the gear 61 and the connecting piece 5.

[0040] Furthermore, if Figure 2 and Figure 3 As shown, the ends of the two clamping members 65 adjacent to each other are both provided with an inclined surface 651, and the two inclined surfaces 651 form a guide groove, and the size of the end of the guide groove adjacent to the driving member 66 is larger than the size of the end of the guide groove away from the driving member 66, and the push block 661 is slidably connected with the inclined surface 651. That is, when the push block 661 is spaced from the clamping member 65, the two clamping members 65 can abut against each other, reducing the gap between the two clamping members 65, and facilitating the sliding cooperation between the push block 661 and the clamping member 65, increasing the distance between the two clamping members 65, and facilitating the clamping member 65 to be pushed out of the third connection hole and clamped in the clamping groove 25.

[0041] Of course, a guide surface can also be provided at one end of the push block 661 adjacent to the clamping member 65, and the guide surface is in contact with the inclined surface 651. By providing the guide surface, the contact area between the push block 661 and the inclined surface 651 can be increased, so that the push block 661 can move more stably when pushing the clamping member 65, and the friction loss of the push block 661 on the inclined surface 651 can also be reduced, thereby ensuring the service life of the clamping block.

[0042] Furthermore, the adjustment mechanism 6 further includes a guide rod 68 extending in the vertical direction, the guide rod 68 is arranged in the inner cavity 641, the clamping member 65 includes a clamping portion 652 and a connecting portion 653 arranged at an angle, a fourth connecting hole is provided through the connecting portion 653 in the vertical direction, the fourth connecting hole is slidably matched with the guide rod 68, the clamping portion 652 is slidably matched with the third connecting hole, the clamping portion 652 can be inserted into the clamping groove 25, the first elastic member 67 includes a spring, the spring is sleeved on the outer periphery of the guide rod 68, a spring is respectively provided on the side away from each other of the two connecting portions 653, and one end of the spring away from the connecting portion 653 abuts against the cavity wall of the inner cavity 641. It can be understood that, through the guide rod 68 guiding and limiting the connecting portion 653, and the third connecting hole guiding and limiting the clamping portion 652, the connection strength between the clamping member 65 and the adjustment tube 64 and the movement stability of the clamping member 65 can be effectively improved.

[0043] By using two springs to continuously push the two connecting parts 653 respectively, the two clamping blocks have a tendency to always approach each other and separate from the clamping groove 25. The spring structure is simple and the driving force is continuous. When it is necessary to move the adjusting tube 64, the driving member 66 is used to drive the pushing block 661 to separate from the guide groove, and the inclined surface 651 is separated from the abutment of the pushing block 661. At this time, the two clamping members 65 are close to each other on the driving member 66 of the spring, and the driving member 66 drives the pushing block 661 to separate from the clamping member 65, so that the first terminal 3 can be dragged to drive the adjusting tube 64 to move. The structure is simple, the adjustment is convenient, and it saves time and effort. When clamping and fixing, the driving member 66 is used to drive the pushing block 661 to push the clamping member 65 to move, so that the two clamping members 65 overcome the elastic force of the spring and deviate from each other and are clamped in the corresponding clamping groove 25.

[0044] In this embodiment, the driving member 66 includes an unlocking rod 662, a second elastic member 663 and a pull ring 664. The unlocking rod 662 is arranged in the inner cavity 641, and one end of the unlocking rod 662 is connected to the pushing block 661. The first terminal 3 is penetrated by a fifth connecting hole along the first direction. The end of the unlocking rod 662 away from the pushing block 661 passes through the five connecting holes and extends to the outside of the terminal block 2, and the end of the unlocking rod 662 away from the pushing block 661 is connected to the pull ring 664. The outer peripheral side of the unlocking rod 662 is provided with a stopper 665 in an annular protrusion along its own central axis, and the stopper 665 is located in the inner cavity 641. The stopper 665 is connected to the bearing 63 through the second elastic member 663. The second elastic member 663 always has a tendency to drive the stopper 665 to move away from the bearing 63, so that the pushing block 661 at the end of the unlocking rod 662 always pushes the clamping member 65 to clamp with the clamping groove 25.

[0045] When the connecting piece 5 needs to be moved and adjusted along the first direction, the pull ring 664 is pulled to drive the push block 661 at the end of the unlocking rod 662 to move along the first direction and away from the clamping member 65, so that the push block 661 is separated from the clamping member 65. At this time, the clamping member 65 is separated from the abutment of the push block 661, and the two clamping members 65 are driven by the first elastic member 67 to approach each other and separate from the clamping groove 25. Then, the connecting block and the adjusting tube 64 can be dragged to move by pulling the first terminal 3. After the adjustment is completed, the pull ring 664 is released, and the push block 661 moves toward the clamping member 65 under the action of the second elastic member 663 through the unlocking rod 662, so as to push the two clamping members 65 away from each other and clamped in the clamping groove 25 at the corresponding position. The push block 661 is kept in abutment with the clamping member 65 under the action of the second elastic member 663, effectively ensuring the clamping stability of the clamping member 65 and the clamping groove 25, thereby ensuring the connection strength of the adjusting tube 64 and the wiring seat 2.

[0046] Furthermore, the adjustment mechanism 6 further includes a limit block 69, and the first side surface 21 further includes a limit groove 26, which is arranged adjacent to the first connection hole 23 and communicated with the first connection hole 23. The limit block 69 is arranged on the outer peripheral side of the adjustment tube 64, and the length of the limit block 69 extends along the first direction, and the limit block 69 is slidably connected with the limit groove 26. Through the sliding cooperation between the limit block 69 and the limit groove 26, the movement guidance and stability of the adjustment tube 64 are effectively improved, thereby ensuring the connection accuracy between the clamping member 65 and the clamping groove 25, and avoiding the situation that the adjustment tube 64 is rotated due to the rotation of the first terminal 3, so as to cause the clamping member 65 and the clamping groove 25 to be misaligned. Of course, in other embodiments, the adjustment tube 64 can also be a square tube, and the first connection hole 23 is a corresponding square hole, and the square tube is inserted into the square hole to ensure the stability of the relative position of the adjustment tube 64 and the first connection hole 23.

[0047] In other embodiments, Figure 1 and Figure 7 The electric energy metering junction box shown also includes a guide cylinder 7 and a clamping mechanism 8. The guide cylinder 7 is provided on the groove wall at the bottom of the accommodating groove 11 in the vertical direction. The length of the guide cylinder 7 extends in the vertical direction, and part of the guide cylinder 7 extends outside the accommodating groove 11. The guide cylinder 7 is used for the cable to pass through. The clamping mechanism 8 includes a fixed sleeve 81, two third elastic members 82 and two clamping blocks 83. The fixed sleeve 81 is provided on the groove wall at the bottom of the accommodating groove 11 in the vertical direction, and the fixed sleeve 81 is sleeved on the outer periphery of the guide cylinder 7. The two clamping blocks 83 are spaced apart along the second direction to form a clamping groove for clamping the cable, and each clamping block 83 is slidably connected to the fixed sleeve 81 through a third elastic member 82.

[0048] When the cable is extended from the outside to the terminal block 2 for connection, the two clamping blocks 83 are swung to compress the third elastic member 82 and move in directions away from each other, and the cable is passed from the guide cylinder 7 from the outside to the accommodating groove 11, and connected to the wiring point of the designated terminal, and part of the cable is located in the clamping groove. At this time, the clamping block 83 is released to clamp the cable for pre-fixation, and the operator can concentrate on connecting the end of the cable to the designated terminal, thereby reducing the difficulty of the operator holding the cable with one hand and holding the tool with the other hand to connect the cable to the terminal, thereby improving the convenience of cable connection.

[0049] For example, the clamping block 83 includes a clamping portion 831, a U-shaped mounting portion 832 and a tightening portion 834, one end of the U-shaped mounting portion 832 is connected to the clamping portion 831, and the other end of the U-shaped mounting portion 832 is connected to the clamping portion 831, two connecting ports are symmetrically arranged on the outer peripheral side of the fixed sleeve 81, the U-shaped mounting portion 832 is slidably connected to the connecting port, the tightening portion 834 is located between the fixed sleeve 81 and the guide cylinder 7, the third elastic member 82 includes a spring, the spring is sleeved on the outer periphery of the U-shaped mounting portion 832 and is located between the fixed sleeve 81 and the tightening portion 834, the U-shaped mounting portion 832 extends to above the guide cylinder 7, so the two clamping portions 831 are located above the guide cylinder 7 to form a clamping groove at intervals, thereby reducing the space occupied by the clamping block 83 inside the guide cylinder 7.

[0050] In addition, a display controller 9 is installed on the top of the junction box body 1. The display controller 9 is connected to the electronic components of the electric energy metering junction box of this scheme, so that the operation of the electronic components of the electric energy metering junction box can be controlled by controlling the display controller 9, and the connection status of the wire post and the cable can be displayed through components such as sensors.

[0051] like Figures 1 to 7 As shown, an embodiment of the present invention further provides an operation method of an electric energy metering junction box, providing the above-mentioned electric energy metering junction box, comprising the following steps:

[0052] S10, installing the second terminal 4 of the electric energy metering junction box into the second connection hole 24 of the terminal holder 2 of the electric energy metering junction box, so that the second terminal 4 is connected to the designated cable;

[0053] S20, screw the first terminal 3 of the electric energy metering junction box to rotate the gear 61 of the adjustment mechanism 6 of the electric energy metering junction box sleeved on the outer peripheral side of the first terminal 3, so as to drive the rack 62 of the adjustment mechanism 6 on the connecting piece 5 of the electric energy metering junction box to transmit, thereby pushing the connecting piece 5 to slide along the sliding groove 22 of the terminal seat 2 in the second direction until the connecting piece 5 abuts against the second terminal 4.

[0054] The operating method of the electric energy metering junction box of the present invention is simple to operate. The operator can realize the movement of the connecting piece 5 by screwing the first terminal 3 through the engagement of the gear 61 and the rack 62, thereby improving the convenience of connecting or spacing the connecting piece 5 and the second terminal 4, which is convenient, fast, and saves time and effort.

[0055] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An electric energy metering junction box, characterized in that: The invention comprises a junction box body, a junction seat, a first junction post, a second junction post, a connecting piece and an adjusting mechanism, wherein the junction box body is provided with a receiving groove on one side along a first direction, the groove wall at the top of the receiving groove in a vertical direction is provided with the junction seat, a side of the junction seat adjacent to the notch of the receiving groove is a first side surface, a sliding groove is provided on the first side surface, the length of the sliding groove extends along a second direction, a first connecting hole and a second connecting hole are provided at intervals along the second direction at the bottom of the sliding groove, the first junction post is rotatably connected to the first connecting hole, the second junction post is detachably connected to the second connecting hole, the length of the connecting piece extends along the second direction, and the connecting hole The plate is slidably arranged in the sliding groove, and the adjusting mechanism includes a gear and a rack. The gear is sleeved on the outer peripheral side of the first terminal, and the connecting plate is penetrated by a mounting opening along the first direction, and the length of the mounting opening extends along the second direction. The rack is arranged on one of the two cavity walls along the vertical direction of the mounting opening, and the length of the rack extends along the second direction. The gear is meshed with the rack, and the first terminal is rotated. The engagement of the gear and the rack can push the connecting plate to move along the second direction and abut or be spaced from the second terminal. The first direction, the second direction and the vertical direction are arranged perpendicular to each other.

2. The electric energy metering junction box according to claim 1, characterized in that: A wiring hole communicating with the second connecting hole is provided on the bottom side of the terminal block, and the wiring hole is used for passing the cable through. The second connecting hole is a threaded hole, and the second terminal is threadedly connected to the second connecting hole. Screwing the second terminal can clamp the end of the cable between the second terminal and the bottom of the second connecting hole.

3. The electric energy metering junction box according to claim 2, characterized in that: The adjustment mechanism also includes a bearing, an adjustment tube, a clamping member and a driving member, the end of the first terminal away from the connecting plate is connected to the inner ring of the bearing, the outer ring of the peripheral side is connected to the adjustment tube, the adjustment tube is slidably connected to the first connecting hole, a plurality of clamping grooves are arranged on the hole wall of the first connecting hole at intervals along the first direction, a third connecting hole connected to the inner cavity of the adjusting tube is provided on the outer peripheral side of the adjusting tube, the clamping member is slidably connected to the third connecting hole, the driving member is arranged in the inner cavity, and the driving member is transmission-connected to the clamping member, so that the clamping member can move along the radial direction of the adjusting tube and be clamped or spaced with the clamping groove.

4. The electric energy metering junction box according to claim 3, characterized in that: The adjustment mechanism includes two clamping members, and the hole wall of the first connecting hole is respectively provided with a plurality of clamping grooves on both sides along the vertical direction. The two clamping members are connected by a first elastic member, and the first elastic member always has a tendency to drive the two clamping members to approach each other. A pushing block is provided at the driving end of the driving member, and the driving member drives the pushing block to move between the two clamping members along the first direction to push the two clamping members away from each other and clamp them in the clamping grooves.

5. The electric energy metering junction box according to claim 4, characterized in that: An inclined surface is provided at one end adjacent to each other of the two clamping members, and the two inclined surfaces form a guide groove. The size of the guide groove adjacent to the end of the driving member is larger than the size of the guide groove away from the end of the driving member, and the pushing block is slidably connected to the inclined surface.

6. The electric energy metering junction box according to claim 4, characterized in that: The adjusting mechanism also includes a guide rod extending along the vertical direction, the guide rod is arranged in the inner cavity, the clamping part includes a clamping portion and a connecting portion arranged at an angle, a fourth connecting hole is arranged on the connecting portion along the vertical direction, the fourth connecting hole is slidably matched with the guide rod, the clamping portion is slidably matched with the third connecting hole, the clamping portion can be inserted into the clamping groove, the first elastic part includes a spring, the spring is sleeved on the outer periphery of the guide rod, one spring is respectively arranged on the side away from each other of the two connecting portions, and one end of the spring away from the connecting portion abuts against the cavity wall of the inner cavity.

7. The electric energy metering junction box according to claim 4, characterized in that: The driving member includes an unlocking rod, a second elastic member and a pull ring, the unlocking rod is arranged in the inner cavity, one end of the unlocking rod is connected to the pushing block, the first terminal is penetrated by a fifth connecting hole along the first direction, the end of the unlocking rod away from the pushing block passes through the five connecting holes and extends to the outside of the terminal block, and the end of the unlocking rod away from the pushing block is connected to the pull ring, the outer peripheral side of the unlocking rod is provided with a stopping portion in an annular protrusion along its own central axis, and the stopping portion is located in the inner cavity, the stopping portion is connected to the bearing through the second elastic member, and the second elastic member always has a tendency to drive the stopping portion to move away from the bearing, so that the pushing block at the end of the unlocking rod always pushes the clamping member to clamp with the clamping groove.

8. The electric energy metering junction box according to claim 3, characterized in that: The adjustment mechanism also includes a limit block. The first side surface is also provided with a limit groove. The limit groove is arranged adjacent to the first connecting hole and is connected to the first connecting hole. The limit block is arranged on the outer peripheral side of the adjustment tube. The length of the limit block extends along the first direction. The limit block is slidably connected to the limit groove.

9. The electric energy metering junction box according to any one of claims 1 to 8, characterized in that: It also includes a guide cylinder and a clamping mechanism. The guide cylinder is provided on the groove wall at the bottom of the accommodating groove in the vertical direction. The length of the guide cylinder extends along the vertical direction, and part of the guide cylinder extends outside the accommodating groove. The guide cylinder is used for the cable to pass through. The clamping mechanism includes a fixed sleeve, two third elastic members and two clamping blocks. The fixed sleeve is provided on the groove wall at the bottom of the accommodating groove in the vertical direction, and the fixed sleeve is sleeved on the outer periphery of the guide cylinder. Two clamping blocks are spaced apart along the second direction to form a clamping groove for clamping the cable, and each of the clamping blocks is slidably connected to the fixed sleeve through a third elastic member.

10. A method for operating an electric energy metering junction box, characterized in that: Providing an electric energy metering junction box according to any one of claims 1 to 9, comprising the following steps: S10, installing the second terminal of the electric energy metering junction box into the second connecting hole of the terminal socket of the electric energy metering junction box, so that the second terminal is connected to the designated cable; S20, screwing the first terminal of the electric energy metering junction box to rotate the gear of the adjustment mechanism of the electric energy metering junction box sleeved on the outer peripheral side of the first terminal, so as to drive the rack transmission of the adjustment mechanism on the connecting piece of the electric energy metering junction box, thereby pushing the connecting piece to slide along the sliding groove of the terminal seat in the second direction until the connecting piece abuts against the second terminal.

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