Electrical energy metering terminal block and method of operation thereof

Abstract

The application discloses an electric energy metering junction box and a working method thereof, wherein the electric energy metering junction box comprises a junction box body, the junction box body is provided with a containing groove, a junction seat is arranged on the top groove wall of the containing groove, a sliding groove is arranged on one side of the junction seat, a first connecting hole and a second connecting hole are arranged at intervals on the groove bottom of the sliding groove, a first junction column is rotationally connected with the first connecting hole, a second junction column is connected with the second connecting hole, a connecting piece is slidingly arranged in the sliding groove, and an adjusting mechanism comprises a gear, the gear is sleeved outside the first junction column, the connecting piece is provided with a mounting opening penetrating through, a rack is arranged on the cavity wall in the vertical direction of the mounting opening, the gear is engaged with the rack, the first junction column is rotated, the connecting piece can be moved and abutted or spaced apart from the second junction column by the engagement of the gear and the rack. By rotating the first junction column, the movement of the connecting piece can be realized by the engagement of the gear and the rack, and the convenience of connecting or spacing the connecting piece and the second junction column is improved.

Description

Technical Field

[0001] This invention relates to the field of electricity metering technology, and in particular to an electricity metering junction box and its operation method. Background Technology

[0002] Electricity metering junction boxes are widely used in the power industry. By changing the position of the connecting pieces inside the junction box, the internal wiring structure can be changed, thus forming different circuits.

[0003] Currently, electricity metering junction boxes are widely used. Their function is to ensure that electricity meter replacement and installation can be carried out without interrupting the power supply, while also ensuring the safety of personnel performing live operations. They also provide wiring terminals for measurement. However, in actual operation, most electricity metering junction boxes require the operator to use one hand to tighten or loosen a screwdriver while simultaneously using the other hand to move the connecting piece to another terminal after opening the outer cover. This is inconvenient, time-consuming, and labor-intensive, affecting work efficiency and increasing the risk of electric shock to the operator. Summary of the Invention

[0004] The purpose of this invention is to provide an electricity metering junction box and its operation method, which has a simple structure, is easy to operate, and improves the ease of adjustment of the connecting pieces.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] In a first aspect, an electricity metering junction box is provided, comprising a junction box body, a terminal block, a first terminal, a second terminal, a connecting piece, and an adjusting mechanism. The junction box body has a receiving groove on one side along a first direction. The terminal block is disposed on the top wall of the receiving groove along a vertical direction. The side of the terminal block adjacent to the opening of the receiving groove is a first side surface. A sliding groove is formed 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 spaced apart along the second direction at the bottom of the sliding groove. The first terminal is rotatably connected to the first connecting hole, and the second terminal is detachably connected to the second connecting hole. The length of the connecting piece extends along the second direction. The connecting piece is slidably disposed within the sliding groove. The adjusting mechanism includes a gear and a rack. The gear is sleeved on the outer periphery of the first terminal. The connecting piece has a through-hole along the first direction. The length of the through-hole extends along the second direction. The rack is disposed on one of the two cavity walls along the vertical direction. The length of the rack extends along the second direction. The gear meshes with the rack. Rotating the first terminal can push the connecting piece to move along the second direction and abut or space from the second terminal through the meshing of the gear and the rack. The first direction, the second direction, and the vertical direction are perpendicular to each other.

[0007] As a preferred embodiment of the power metering junction box, the bottom side of the junction box is provided with a wiring hole that communicates with the second connection hole. The wiring hole is used for cable to pass through. The second connection hole is a threaded hole. The second terminal is threadedly connected to the second connection hole. Tightening the second terminal can lock the end of the cable between the second terminal and the bottom of the second connection hole.

[0008] As a preferred embodiment of the electricity metering junction box, the adjustment mechanism further includes a bearing, an adjustment tube, a snap-fit ​​component, and a drive component. The end of the first terminal away from the connecting piece is connected to the inner ring of the bearing. The outer ring of the first terminal is connected to the adjustment tube, which is slidably connected to the first connecting hole. Multiple snap-fit ​​grooves are spaced apart on the wall of the first connecting hole along the first direction. A third connecting hole communicating with the inner cavity of the adjustment tube is opened on the outer periphery of the adjustment tube. The snap-fit ​​component is slidably connected to the third connecting hole. The drive component is disposed in the inner cavity and is drively connected to the snap-fit ​​component, so that the snap-fit ​​component can move along the radial direction of the adjustment tube and snap-fit ​​or spaced apart from the snap-fit ​​grooves.

[0009] As a preferred embodiment of the electricity metering junction box, the adjustment mechanism includes two snap-fit ​​components. The hole wall of the first connecting hole is provided with a plurality of snap-fit ​​grooves on both sides along the vertical direction. The two snap-fit ​​components are connected by a first elastic member. The first elastic member always has the tendency to drive the two snap-fit ​​components to move closer to each other. The driving end of the driving member is provided with a pushing block. The driving member drives the pushing block to move between the two snap-fit ​​components along the first direction, so as to push the two snap-fit ​​components away from each other and snap them into the snap-fit ​​grooves.

[0010] As a preferred embodiment of the electricity metering junction box, each of the two snap-fit ​​components has an inclined surface at one end adjacent to each other, and the two inclined surfaces form a guide groove. The size of the guide groove at the end adjacent to the driving component is larger than the size of the guide groove at the end away from the driving component, and the push block is slidably connected to the inclined surface.

[0011] As a preferred embodiment of the electricity metering junction box, the adjustment mechanism further includes a guide rod extending along the vertical direction. The guide rod is disposed in the inner cavity. The snap-fit ​​component includes a snap-fit ​​portion and a connecting portion disposed at an angle. A fourth connecting hole is provided through the connecting portion along the vertical direction. The fourth connecting hole is slidably engaged with the guide rod. The snap-fit ​​portion is slidably engaged with the third connecting hole. The snap-fit ​​portion can be inserted into the snap-fit ​​groove. The first elastic element includes a spring. The spring is sleeved on the outer periphery of the guide rod. A spring is respectively provided on the side of the two connecting portions that are far apart from each other. The end of the spring that is far away from the connecting portion abuts against the cavity wall of the inner cavity.

[0012] As a preferred embodiment of the electricity metering junction box, the driving component includes an unlocking rod, a second elastic element, and a pull ring. The unlocking rod is disposed in the inner cavity, and one end of the unlocking rod is connected to the pushing block. The first terminal has a fifth connecting hole extending through it along the first direction. The end of the unlocking rod away from the pushing block extends through the fifth connecting hole 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. A stop portion is provided annularly protruding on the outer periphery of the unlocking rod along its own central axis, and the stop portion is located in the inner cavity. The stop portion is connected to the bearing through the second elastic element. The second elastic element always has a tendency to drive the stop portion away from the bearing, so that the pushing block at the end of the unlocking rod always pushes the locking member to engage with the locking groove.

[0013] As a preferred embodiment of the power metering junction box, the adjustment mechanism further includes a limiting block, and a limiting groove is also provided on the first side. The limiting groove is located adjacent to the first connection hole and is connected to the first connection hole. The limiting block is provided on the outer periphery of the adjustment tube. The length of the limiting block extends along the first direction, and the limiting block is slidably connected to the limiting groove.

[0014] As a preferred embodiment of the power metering junction box, the power metering junction box further includes a guide cylinder and a clamping mechanism. The guide cylinder is provided on the bottom wall of the receiving groove along the vertical direction. The length of the guide cylinder extends along the vertical direction, and part of the guide cylinder extends outside the receiving groove. The guide cylinder is for cable to pass through. The clamping mechanism includes a fixed sleeve, two third elastic elements, and two clamping blocks. The fixed sleeve is provided on the bottom wall of the receiving groove along the vertical direction and is sleeved on the outer periphery of the guide cylinder. The two clamping blocks are spaced apart along the second direction to form clamping grooves for clamping the cable. Each clamping block is slidably connected to the fixed sleeve through one of the third elastic elements.

[0015] Secondly, a method for operating an electricity metering junction box is provided, comprising the following steps:

[0016] S10. Install the second terminal of the power metering junction box into the second connection hole of the terminal block of the power metering junction box so that the second terminal is connected to the designated cable;

[0017] S20. Twist the first terminal of the power metering junction box to rotate the gear of the adjustment mechanism of the power metering junction box sleeved on the outer periphery of the first terminal, thereby driving the rack and pinion of the adjustment mechanism on the connecting piece of the power metering junction box, so as to push the connecting piece to slide along the sliding groove of the terminal block in the second direction until the connecting piece abuts against the second terminal.

[0018] The beneficial effects of this invention are as follows: By adjusting the mechanism, the operator can move the connecting piece by turning the first terminal, which is achieved through the meshing of the gear and rack. This improves the convenience of connecting or separating the connecting piece with the second terminal. Furthermore, the sliding groove enhances the guiding and stable movement of the connecting piece. The operation is simple, convenient, and quick, eliminating the need for external screwdrivers or other tools. This saves time and effort, effectively improves the efficiency of connecting the power metering junction box, and reduces the risk of electric shock to the operator. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of the power metering junction box according to an embodiment of the present invention;

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

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

[0023] Figure 4 This is a schematic diagram of the terminal block structure according to an embodiment of the present invention;

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

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

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

[0027] In the picture:

[0028] 1. Junction box body; 11. Receiving groove; 2. Terminal block; 21. First side; 22. Sliding groove; 23. First connecting hole; 24. Second connecting hole; 25. Snap-fit ​​groove; 26. Limiting groove; 3. First terminal; 4. Second terminal; 5. Connecting piece; 51. Mounting port; 6. Adjustment mechanism; 61. Gear; 62. Rack; 63. Bearing; 64. Adjustment tube; 641. Inner cavity; 65. Snap-fit ​​component; 651. Inclined surface; 652. 653. Connecting part; 66. Driving component; 661. Pushing block; 662. Unlocking rod; 663. Second elastic element; 664. Pull ring; 665. Stopping part; 67. First elastic element; 68. Guide rod; 69. Limiting block; 7. Guide cylinder; 8. Clamping mechanism; 81. Fixing sleeve; 82. Third elastic element; 83. Clamping block; 831. Clamping part; 832. U-shaped mounting part; 834. Pressing part; 9. Display controller. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0033] like Figures 1 to 7As shown, the power metering junction box of this embodiment includes a junction box body 1, a terminal block 2, a first terminal 3, a second terminal 4, a connecting piece 5, and an adjusting mechanism 6. The junction box body 1 has a receiving groove 11 along one side of a first direction (the first direction is the X direction shown in the figure). The terminal block 2 is provided on the top wall of the receiving groove 11 in the vertical direction. The side of the terminal block 2 adjacent to the opening of the receiving groove 11 is a first side surface 21. A sliding groove 22 is provided on the first side surface 21. The length of the sliding groove 22 extends along a second direction (the second direction is the Y direction shown in the figure). A first connecting hole 23 and a second connecting hole 24 are provided at intervals along the second direction at the bottom of the sliding groove 22 (the bottom of the sliding groove 22 is the groove wall parallel to the first side surface 21). 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 disposed in the sliding groove 22. The adjusting mechanism 6 includes a gear 61 and a rack 62. The gear 61 is sleeved on the outer periphery of the first terminal 3. The connecting piece 5 has a through-hole 51 along the first direction. The length of the through-hole 51 extends along the second direction. A rack 62 is disposed on one of the two cavity walls of the through-hole 51 along the vertical direction (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 meshes with the rack 62. Rotating the first terminal 3 can push the connecting piece 5 to move along the second direction and abut or space from the second terminal 4 through the meshing of the gear 61 and the rack 62. The first direction, the second direction and the vertical direction are perpendicular to each other.

[0034] Understandably, by adjusting the mechanism 6, operators can move the connecting piece 5 by turning the first terminal 3, which, through the meshing of gear 61 and rack 62, improves the convenience of connecting or separating the connecting piece 5 from the second terminal 4. Furthermore, the sliding groove 22 enhances the guiding and stable movement of the connecting piece 5. The operation is simple, convenient, and quick, eliminating the need for external screwdrivers or other tools, saving time and effort, effectively improving the efficiency of connecting the power metering junction box, and reducing the risk of electric shock to operators. In addition, the end of the first terminal 3 furthest from the terminal block 2 is equipped with an insulating part. This insulating part allows operators to move the connecting piece 5 simply by turning the insulating part, reducing the risk of electric shock to operators and effectively ensuring their safety.

[0035] Specifically, the bottom side of the terminal block 2 has a wiring hole communicating with the second connecting hole 24. The wiring hole is used for cable passage. The second connecting hole 24 is a threaded hole, and the second terminal 4 is threadedly connected to the second connecting hole 24. Tightening the second terminal 4 can lock the end of the cable between the second terminal 4 and the bottom of the second connecting hole 24. In this embodiment, the second terminal 4 is a bolt. In actual application, the cable is inserted from the wiring hole into the first connecting hole 23, with the wiring hole adjacent to the bottom of the second connecting hole 24. Tightening the bolt locks the end of the cable between the end of the bolt and the bottom of the first connecting hole 23, thereby making the cable electrically connected to the second terminal 4. The threaded connection method is convenient for disassembly and assembly, and the connection is stable, effectively ensuring the connection stability between the second terminal 4 and the cable.

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

[0037] Furthermore, Figures 2 to 6 As shown, since cables of different diameters are used for connection, the tightening depth of the bolts may vary. 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 adjustment mechanism 6 of this scheme also includes a bearing 63, an adjustment tube 64, a snap-fit ​​component 65, and a drive component 66. The end of the first terminal block 3 away from the connecting piece 5 is connected to the inner ring of the bearing 63, and the outer ring of the periphery is connected to the adjustment tube 64. The adjustment tube 64 is slidably connected to the first connection hole 23. Multiple snap-fit ​​grooves 25 are spaced apart on the wall of the first connection hole 23 along the first direction. A third connection hole communicating with the inner cavity 641 of the adjustment tube 64 is opened on the outer periphery of the adjustment tube 64. The snap-fit ​​component 65 is slidably connected to the third connection hole. The drive component 66 is disposed in the inner cavity 641, and the drive component 66 is drively connected to the snap-fit ​​component 65, so that the snap-fit ​​component 65 can move along the radial direction of the adjustment tube 64 and snap-fit ​​or spaced apart with the snap-fit ​​grooves 25.

[0038] For example, when the cable diameter is thicker, the distance between the bolt end and the terminal block 2 increases. In this case, by controlling the drive component 66 to separate the locking member 65 from the locking groove 25, and maintaining the continuous driving state of the drive component 66, the first terminal 3 is dragged to move the connecting piece 5 in the first direction away from the terminal block 2 to the designated position. The adjusting tube 64 moves outward with the first terminal 3. At this time, the locking member 65 is opposite to another locking groove 25. The drive component 66 is controlled to make the locking member 65 engage in the locking groove 25 adjacent to the connecting piece 5, so as to realize the adjustment of the connecting piece 5. Moreover, the bearing 63 ensures that the screwing operation of the first terminal 3 does not affect the movement of the adjusting tube 64, thus ensuring the relative stability of the adjusting tube 64. Of course, in some embodiments, the adjustment tube 64 can be connected to the terminal block 2 by directly pushing the snap-fit ​​65 against the wall of the first connecting hole 23 through the driving member 66, which replaces the structure in which the snap-fit ​​65 must be opposite to the snap-fit ​​groove 25 to snap-fit. This can effectively ensure the degree of freedom of adjustment of the adjustment tube 64 and the connecting piece 5 along the first direction.

[0039] also, Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the mounting port 51 of the connecting piece 5 is also provided with a limiting part on the cavity wall in the vertical direction. The rack 62 is provided with limiting parts on both sides in the first direction. The gear 61 is located between the two limiting parts so that when the first terminal 3 moves in the first direction, the first terminal 3 can pull the gear 61 and drag the connecting piece 5 to move, ensuring the connection stability and adjustment convenience of the gear 61 and the connecting piece 5.

[0040] Furthermore, such as Figure 2 and Figure 3 As shown, each of the two snap-fit ​​pieces 65 has an inclined surface 651 at one of its adjacent ends. The two inclined surfaces 651 form a guide groove. The dimension of the guide groove at the end adjacent to the drive member 66 is larger than the dimension at the end of the guide groove away from the drive member 66. The push block 661 is slidably connected to the inclined surface 651. That is, when the push block 661 and the snap-fit ​​piece 65 are spaced apart, the two snap-fit ​​pieces 65 can abut against each other, reducing the gap between the two snap-fit ​​pieces 65. At the same time, it facilitates the sliding fit between the push block 661 and the snap-fit ​​piece 65, increases the distance between the two snap-fit ​​pieces 65, and makes it easier for the snap-fit ​​piece 65 to be pushed out of the third connecting hole and snapped into the snap-fit ​​groove 25.

[0041] Of course, a guide surface can also be provided at one end of the push block 661 adjacent to the latching 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, making the movement of the push block 661 more stable when pushing the latching member 65. At the same time, it can also reduce the frictional wear of the push block 661 on the inclined surface 651, and ensure the service life of the latching block.

[0042] Furthermore, the adjusting mechanism 6 also includes a guide rod 68 extending vertically, which is disposed in the inner cavity 641. The snap-fit ​​member 65 includes a snap-fit ​​portion 652 and a connecting portion 653 arranged at an angle. A fourth connecting hole is provided vertically through the connecting portion 653, which slides with the guide rod 68. The snap-fit ​​portion 652 slides with the third connecting hole and can be inserted into the snap-fit ​​groove 25. The first elastic member 67 includes a spring, which is sleeved on the outer periphery of the guide rod 68. A spring is provided on the side of the two connecting portions 653 that are far apart from each other, and the 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 by guiding and limiting the connecting portion 653 with the guide rod 68 and guiding and limiting the snap-fit ​​portion 652 with the third connecting hole, the connection strength between the snap-fit ​​member 65 and the adjusting tube 64 and the movement stability of the snap-fit ​​member 65 can be effectively improved.

[0043] By using two springs to continuously push the two connecting parts 653 respectively, the two locking blocks tend to always move closer to each other and separate from the locking 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 drives the pushing block 661 to separate from the guide groove, and the inclined surface 651 disengages from the abutment of the pushing block 661. At this time, the two locking parts 65 move closer to each other under the driving member 66 of the spring, keeping the driving member 66 driving the pushing block 661 to separate from the locking parts 65. The first terminal 3 can be dragged to move the adjusting tube 64. The structure is simple, the adjustment is convenient, and it saves time and effort. When locking and fixing, the driving member 66 drives the pushing block 661 to push the locking parts 65 to move, so that the two locking parts 65 overcome the elastic force of the spring and move away from each other and lock into the corresponding locking groove 25.

[0044] In this embodiment, the driving component 66 includes an unlocking rod 662, a second elastic element 663, and a pull ring 664. The unlocking rod 662 is disposed in the inner cavity 641. One end of the unlocking rod 662 is connected to the pushing block 661. The first terminal 3 is provided with a fifth connecting hole through the first direction. The end of the unlocking rod 662 away from the pushing block 661 extends through the fifth connecting hole to the outside of the terminal block 2. The end of the unlocking rod 662 away from the pushing block 661 is connected to the pull ring 664. A stop portion 665 is provided annularly protruding on the outer periphery of the unlocking rod 662 along its own central axis. The stop portion 665 is located in the inner cavity 641. The stop portion 665 is connected to the bearing 63 through the second elastic element 663. The second elastic element 663 always has a tendency to drive the stop portion 665 away from the bearing 63, so that the pushing block 661 at the end of the unlocking rod 662 always pushes the locking component 65 to engage with the locking groove 25.

[0045] When the connecting piece 5 needs to be adjusted along the first direction, pull the pull ring 664 to drive the push block 661 at the end of the unlocking rod 662 to move along the first direction away from the locking member 65, so that the push block 661 separates from the locking member 65. At this time, the locking member 65 is disengaged from the push block 661, and the two locking members 65 move closer to each other under the drive of the first elastic member 67 and separate from the locking groove 25. Then, the connecting block and the adjusting tube 64 can be moved by pulling the first terminal 3. After the adjustment is completed, release the pull ring 664, and the push block 661 moves towards the locking member 65 under the action of the second elastic member 663 through the unlocking rod 662, so as to push the two locking members 65 away from each other and lock them in the corresponding locking groove 25. The push block 661 remains in contact with the locking member 65 under the action of the second elastic member 663, effectively ensuring the locking stability of the locking member 65 and the locking groove 25, thereby ensuring the connection strength between the adjusting tube 64 and the terminal block 2.

[0046] Furthermore, the adjustment mechanism 6 also includes a limiting block 69, and a limiting groove 26 is provided on the first side 21. The limiting groove 26 is located adjacent to the first connecting hole 23 and communicates with the first connecting hole 23. A limiting block 69 is provided on the outer periphery of the adjustment tube 64, and the length of the limiting block 69 extends along the first direction. The limiting block 69 is slidably connected to the limiting groove 26. Through the sliding cooperation between the limiting block 69 and the limiting groove 26, the movement guidance and stability of the adjustment tube 64 are effectively improved, thereby ensuring the connection accuracy between the snap-fit ​​member 65 and the snap-fit ​​groove 25, and avoiding the situation where rotating the first terminal 3 causes the adjustment tube 64 to rotate and the snap-fit ​​member 65 and the snap-fit ​​groove 25 to become misaligned. Of course, in other embodiments, the adjustment tube 64 can also be a square tube, and the first connecting hole 23 is a corresponding square hole. 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 connecting hole 23.

[0047] In other embodiments, such as Figure 1 and Figure 7 The power metering junction box shown also includes a guide cylinder 7 and a clamping mechanism 8. The guide cylinder 7 is provided on the bottom wall of the receiving 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 receiving groove 11. The guide cylinder 7 is for cable to pass through. The clamping mechanism 8 includes a fixed sleeve 81, two third elastic elements 82 and two clamping blocks 83. The fixed sleeve 81 is provided on the bottom wall of the receiving groove 11 in the vertical direction and is sleeved on the outer periphery of the guide cylinder 7. The two clamping blocks 83 are spaced apart in the second direction to form clamping grooves for clamping cables. Each clamping block 83 is slidably connected to the fixed sleeve 81 through a third elastic element 82.

[0048] When the cable extends from the outside to the terminal block 2 for connection, the two clamping blocks 83 swing to compress the third elastic element 82 and move it in a direction away from each other, so that the cable passes from the outside of the guide cylinder 7 into the receiving groove 11 and is connected to the connection point of the designated terminal. At this time, part of the cable is located in the clamping groove. Then, the clamping blocks 83 are released to clamp the cable for pre-fixation. The operator can then concentrate on connecting the end of the cable to the designated terminal. This reduces the difficulty of the operation when the operator has to hold the cable with one hand and the tool with the other hand to connect the cable to the terminal, thus improving the convenience of cable connection.

[0049] For example, the clamping block 83 includes a clamping part 831, a U-shaped mounting part 832, and a pressing part 834. One end of the U-shaped mounting part 832 is connected to the clamping part 831, and the other end of the U-shaped mounting part 832 is connected to the clamping part 831. Two connection ports are symmetrically arranged on the outer periphery of the fixed sleeve 81. The U-shaped mounting part 832 is slidably connected to the connection ports. The pressing part 834 is located between the fixed sleeve 81 and the guide cylinder 7. The third elastic element 82 includes a spring. The spring is sleeved on the outer periphery of the U-shaped mounting part 832 and located between the fixed sleeve 81 and the pressing part 834. The U-shaped mounting part 832 extends above the guide cylinder 7. Therefore, the two clamping parts 831 are located above the guide cylinder 7 to form a clamping groove at intervals, 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 1. The display controller 9 is connected to each electronic component of the power metering junction box in this solution, so as to control the operation of each electronic component of the power metering junction box by controlling the display controller 9, and the connection status of the conductor post and cable can be displayed by sensors and other components.

[0051] like Figures 1 to 7 As shown, an embodiment of the present invention also provides a method for operating an energy metering junction box, which includes the following steps:

[0052] S10. Install the second terminal 4 of the power metering junction box into the second connection hole 24 of the terminal block 2 of the power metering junction box so that the second terminal 4 is connected to the designated cable.

[0053] S20. Twist the first terminal 3 of the power metering junction box to rotate the gear 61 of the adjustment mechanism 6 of the power metering junction box, which is sleeved on the outer periphery of the first terminal 3, so as to drive the rack 62 of the adjustment mechanism 6 on the connecting piece 5 of the power metering junction box to drive the connecting piece 5 to slide along the sliding groove 22 of the terminal block 2 in the second direction until the connecting piece 5 abuts against the second terminal 4.

[0054] The operation method of the power metering junction box of the present invention is simple. The operator can move the connecting piece 5 by turning the first terminal 3, which can be achieved by the meshing of the gear 61 and the rack 62. This improves the convenience of connecting or separating the connecting piece 5 and the second terminal 4, making it convenient, quick and easy, saving 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 implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An electricity metering terminal, characterized in that The utility model provides a terminal box, including terminal box body, terminal seat, first terminal post, second terminal post, connecting piece and adjusting mechanism, the terminal box body is equipped with accommodating groove along one side of first direction, the groove wall of accommodating groove top along vertical direction is equipped with terminal seat, the first side of terminal seat adjacent groove mouth of accommodating groove one side is first side, first side is equipped with sliding slot, the length of sliding slot extends along second direction, the groove bottom of sliding slot is equipped with first connecting hole and second connecting hole interval setting along second direction, first terminal post is rotatably connected with first connecting hole, second terminal post is detachably connected with second connecting hole, the length of connecting piece extends along second direction, and connecting piece is slidably arranged in sliding slot, adjusting mechanism includes gear and rack, gear is sleeved on the outer circumferential side of first terminal post, connecting piece is arranged through installation opening along first direction, the length of installation opening extends along second direction, the cavity wall of one of two cavity walls of installation opening is equipped with rack along vertical direction, the length of rack extends along second direction, gear is engaged with rack, rotates first terminal post, can pass through gear and the rack engagement pushes connecting piece and moves along second direction and abuts or interval with second terminal post, first direction, second direction and vertical direction are perpendicular to each other arrangement; The bottom side of the terminal seat is provided with a terminal hole in communication with the second connecting hole, the terminal hole is used for the cable to pass through, the second connecting hole is a threaded hole, the second terminal post is threadedly connected with the second connecting hole, and the end of the cable can be clamped between the second terminal post and the hole bottom of the second connecting hole by screwing the second terminal post. The adjusting mechanism further includes a bearing, an adjusting tube, a clamping piece, and a driving piece. One end of the first terminal post, away from the connecting piece, is connected with the inner ring of the bearing. The outer ring of the bearing is connected with the adjusting tube. The adjusting tube is slidably connected with the first connecting hole. A plurality of clamping grooves are arranged at intervals along the first direction on the hole wall of the first connecting hole. A third connecting hole in communication with the inner cavity of the adjusting tube is formed on the outer circumferential side of the adjusting tube. The clamping piece is slidably connected with the third connecting hole. The driving piece is arranged in the inner cavity, and the driving piece is drivingly connected with the clamping piece, so that the clamping piece can move along the radial direction of the adjusting tube and be clamped or spaced apart from the clamping grooves.

2. The electrical energy metering junction box of claim 1, wherein, The adjusting mechanism includes two clamping pieces. The hole wall of the first connecting hole is provided with a plurality of clamping grooves on both sides along the vertical direction. The two clamping pieces are connected by a first elastic piece. The first elastic piece always has a tendency to drive the two clamping pieces to approach each other. The driving end of the driving piece is provided with a pushing block. The driving piece drives the pushing block to move between the two clamping pieces along the first direction, so as to drive the two clamping pieces to move away from each other and be clamped in the clamping grooves.

3. The electrical energy metering junction box of claim 2, wherein, Two ends of the clamping pieces adjacent to each other are provided with inclined surfaces, the two inclined surfaces form a guide groove, the size of the guide groove adjacent to one end of the driving piece is larger than the size of the guide groove away from one end of the driving piece, and the pushing block is in sliding connection with the inclined surfaces.

4. The electrical energy metering junction box of claim 2, wherein, The adjusting mechanism further comprises a guide rod extending along the vertical direction, the guide rod is arranged in the inner cavity, the clamping piece comprises a clamping portion and a connecting portion arranged at an angle, a fourth connecting hole is arranged through the connecting portion along the vertical direction, the fourth connecting hole is in sliding fit with the guide rod, the clamping portion is in sliding fit with the third connecting hole, the clamping portion can be inserted into the clamping groove, the first elastic member comprises a spring, the spring is sleeved on the outer periphery of the guide rod, one spring is arranged on each side of the two connecting portions away from each other, and one end of the spring away from the connecting portion is in abutment with the cavity wall of the inner cavity.

5. The electrical energy metering junction box of claim 2, wherein, The driving piece comprises 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 with the pushing block, a fifth connecting hole is arranged through the first terminal post along the first direction, one end of the unlocking rod away from the pushing block extends to the outside of the terminal seat through the fifth connecting hole, one end of the unlocking rod away from the pushing block is connected with the pull ring, the outer periphery of the unlocking rod is annularly and protrudingly provided with a stop portion along the central axis of the unlocking rod, the stop portion is located in the inner cavity, the stop portion is connected with the bearing through the second elastic member, the second elastic member always has a moving trend of driving the stop portion away from the bearing, so that the pushing block at the end of the unlocking rod always pushes the clamping piece to be clamped with the clamping groove.

6. The electrical energy metering junction box of claim 1, wherein, The adjusting mechanism further comprises a limiting block, the first side surface is further provided with a limiting groove, the limiting groove is arranged adjacent to the first connecting hole and in communication with the first connecting hole, and the outer periphery of the adjusting pipe is provided with the limiting block, the length of the limiting block extends along the first direction, and the limiting block is in sliding connection with the limiting groove.

7. The electrical energy metering junction box according to any of claims 1-6, characterized in that, Further comprising a guide cylinder and a clamping mechanism, the guide cylinder is arranged on the groove wall of the bottom of the accommodating groove along the vertical direction, the length of the guide cylinder extends along the vertical direction, and part of the guide cylinder extends to the outside of the accommodating groove, the guide cylinder is provided for the cable, the clamping mechanism comprises a fixed sleeve, two third elastic members and two clamping blocks, the fixed sleeve is arranged on the groove wall of the bottom of the accommodating groove along the vertical direction, and the fixed sleeve is sleeved on the outer periphery of the guide cylinder, the two clamping blocks are arranged at intervals along the second direction to form clamping grooves for clamping the cable, and each clamping block is in sliding connection with the fixed sleeve through one third elastic member.

8. A work method of an electric energy metering junction box, characterized by, The electric energy metering junction box of any one of claims 1-7 is provided, comprising the following steps: S10, installing the second terminal post of the electric energy metering junction box into the second connecting hole of the terminal seat of the electric energy metering junction box, so that the second terminal post is in conduction with the specified cable; S20, screwing the first terminal post of the electric energy metering junction box, rotating the gear of the adjusting mechanism of the electric energy metering junction box sleeved on the outer circumferential side of the first terminal post, driving the rack of the adjusting mechanism arranged on the connecting piece of the electric energy metering junction box to transmit, thereby pushing the connecting piece to slide along the sliding groove of the terminal seat in a second direction until the connecting piece abuts against the second terminal post.

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