Direct current rail power meter

Abstract

The application relates to the technical field of direct-current electric energy meters, and particularly discloses a direct-current guide rail electric energy meter, which comprises a direct-current electric energy meter, a mounting block is arranged on the side wall of the direct-current electric energy meter, a clamping strip is arranged on the side wall of the mounting block in a lifting mode, one side of the direct-current electric energy meter is provided with a guide rail, a clamping groove is formed in the guide rail, a quick mounting and dismounting assembly and a stabilizing assembly are arranged on the mounting block; the clamping strip on the mounting block of the direct-current electric energy meter is aligned with the clamping groove on the guide rail, at the moment, the quick mounting and dismounting assembly in the application can shrink the clamping strip, and the installation can be completed after the shrinking is completed; after the installation is completed, the clamping strip can be automatically abutted against the clamping groove, when dismounting, the quick mounting and dismounting assembly can directly shrink the clamping strip, and the dismounting of the direct-current electric energy meter can be carried out after the shrinking, so that the direct-current electric energy meter can be quickly mounted and dismounted, the mounting and dismounting efficiency is improved, the mounting and dismounting difficulty is reduced, and the stabilizing assembly can keep the direct-current electric energy meter and the guide rail stable after the installation of the direct-current electric energy meter is completed, so that the direct-current electric energy meter can be prevented from deviating during use.

Description

Technical Field

[0001] This application relates to the field of DC energy meter technology, and in particular to DC rail energy meters. Background Technology

[0002] An electricity meter is a specialized instrument for measuring electrical energy, commonly known as an electricity meter or watt-hour meter. It is mainly used to measure electricity consumption and is a key device for electricity metering, billing, and energy management in power systems, industrial and commercial electricity use, and household electricity use. The DC rail-mounted electricity meter is a special type of electricity meter, specifically designed for electricity metering in DC power systems. It features small size, modularity, easy installation, and easy networking, facilitating dense installation and rapid deployment in distribution boxes and control cabinets, greatly improving installation efficiency and space utilization. It is an ideal choice for terminal DC electricity metering, especially for lighting system upgrades and distributed DC power supply monitoring.

[0003] In existing technologies, DC rail-mounted energy meters typically include a meter body, a rail mounting mechanism, a measurement module, a communication module, and a display unit. The meter body integrates a core metering chip to achieve accurate measurement of active energy. The external shunt is a key component for measuring high DC current, and is usually connected in series in the DC positive line. The rail mounting mechanism is usually located at the bottom of the energy meter, and its internal rear side has a fixing component. The spring force causes the latch to engage with the edge of a standard DIN rail, thereby securing the energy meter onto the rail. The communication module connects to external systems through physical connections and protocol interfaces to achieve remote data transmission and reading. The display unit is connected to the motherboard via a flexible flat cable for local data visualization.

[0004] Regarding the aforementioned technologies, since the rail mounting mechanism relies on spring clips for fixation, disassembly typically requires maintenance personnel to use both hands simultaneously with tools to pry or press the two clips inward to separate the energy meter from the rail. This may increase the difficulty of operation, reduce disassembly efficiency, and the tools may slip and touch nearby live conductors, causing short circuits or electric shock accidents. In addition, the existing spring clip structure may cause the energy meter to be unstable or misaligned when fixed to the rail, and the clip structure lacks an effective lateral limiting mechanism, which may cause the meter body to tilt or misalign after installation. Therefore, improvements are needed. Utility Model Content

[0005] To facilitate quick installation and removal of DC energy meters and prevent DC energy meters from shifting, this application provides a DC rail energy meter.

[0006] The DC rail energy meter provided in this application adopts the following technical solution: A DC rail energy meter includes a DC energy meter, a mounting block is provided on the side wall of the DC energy meter, a retaining strip is provided on the side wall of the mounting block, a guide rail is provided on one side of the DC energy meter, a slot is provided on the guide rail for engaging the retaining strip with the guide rail, a quick-installation and disassembly assembly is provided on the mounting block for quick installation and disassembly of the DC energy meter, and a stabilizing assembly is provided on the mounting block for preventing the DC energy meter from shifting.

[0007] By adopting the above technical solution, the locking strip on the DC energy meter mounting block is aligned with the slot on the guide rail. At this time, the quick installation and removal component of this application can retract the locking strip. After retraction, the meter can be installed. After installation, the locking strip can automatically abut against the slot. When disassembly is required, the quick installation and removal component can directly retract the locking strip. After retraction, the DC energy meter can be disassembled. This achieves quick installation and removal of the DC energy meter on the guide rail, improving installation and removal efficiency, reducing installation and removal difficulty and labor costs. The stabilizing component can keep the DC energy meter stable on the guide rail after installation, thereby preventing the DC energy meter from shifting during use.

[0008] Optionally, the quick-installation assembly includes a first nut, a lead screw, a top block, a wedge rod, a spring, and a guide. The first nut is rotatably mounted on the side wall of the mounting block. The lead screw is rotatably mounted inside the mounting block and fixedly connected to the first nut. A sliding groove is provided inside the mounting block. The top block is threadedly connected to the lead screw, and one end is slidably connected to the sliding groove. A lifting groove is provided inside the mounting block. The wedge rod is lifted and lowered within the lifting groove, and its wedge surface abuts against the top block. The end of the wedge block away from the top block is fixedly connected to the retaining strip. Two sets of springs are symmetrically arranged. One end of each set of springs is fixedly connected to the retaining strip, and the other end is fixedly connected to the inner top wall of the mounting block. The guide is located on the side wall of the mounting block near the guide rail and is used for quick positioning of the DC energy meter during installation.

[0009] By adopting the above technical solution, when the DC energy meter needs to be disassembled, the first nut is rotated, which drives the lead screw to rotate. Since the top block is threadedly connected to the lead screw and slidably connected to the sliding groove, the rotation of the lead screw can drive the top block to move. Since the top block abuts against the wedge-shaped surface of the wedge rod, the movement of the top block can drive the wedge rod to rise and fall within the lifting groove. The rise and fall of the wedge rod drives the locking strip to rise and fall. The rise and fall of the locking strip can complete the abutment with the locking groove or not, thereby realizing the rapid installation and disassembly of the DC energy meter, improving the installation and disassembly efficiency, reducing the installation and disassembly difficulty, reducing labor costs, and the spring can automatically tighten the locking strip against the locking groove, simplifying the installation process.

[0010] Optionally, the guide component includes a guide block, which is disposed on the side wall of the mounting block near one end of the guide rail, and the guide rail has a guide groove for inserting and connecting the guide block with the guide rail.

[0011] By adopting the above technical solution, before installing the DC energy meter, the guide block is aligned with the guide groove and a socket connection is made. The DC energy meter is installed at the same time as the socket connection, thereby reducing the adjustment time during the installation of the DC energy meter and achieving accurate positioning of the DC energy meter.

[0012] Optionally, the stabilizing component includes a second nut, a rotating shaft, a gear, a toothed rail, and a longitudinal fastener. The second nut is rotatably disposed on the side wall of the mounting block away from the first nut. The rotating shaft is rotatably disposed within the mounting block, and one end is fixedly connected to the second nut. The gear is sleeved on the outer peripheral wall of the rotating shaft. The mounting block and the guide rail are provided with movable grooves. The toothed rail is movably disposed within the movable grooves and meshes with the gear. The longitudinal fastener is disposed on the side wall of the mounting block to keep the DC energy meter and the guide rail longitudinally stable.

[0013] By adopting the above technical solution, after the DC energy meter is installed, the second nut is rotated. The rotation of the second nut drives the rotating shaft to rotate, and the rotation of the second rotating shaft drives the gear to rotate. Since the gear and the toothed rail mesh with each other, the rotation of the gear can drive the toothed rail to move in the moving groove, thereby preventing the DC energy meter from sliding laterally on the guide rail, improving the stability and anti-interference ability of the DC energy meter, and ensuring the safety and reliability of the electrical connection.

[0014] Optionally, the longitudinal fastener includes a screw and a limiting rod. The screw is rotatably mounted on the side wall of the mounting block away from the second nut. The limiting rod is located at the end of the screw. The guide rail has a limiting groove for inserting and rotating the limiting rod.

[0015] By adopting the above technical solution, when installing a DC energy meter, the limiting rod and the screw will be inserted into the limiting groove of the guide rail simultaneously. After installation, the screw is rotated, and the rotation of the screw will drive the limiting rod to rotate in the limiting groove, thereby achieving longitudinal stabilization between the DC energy meter and the guide rail, further improving the stability and anti-interference capability of the DC energy meter.

[0016] Optionally, a rotating groove is provided on the side wall of the mounting block, and the limiting disk is rotatably disposed in the rotating groove and sleeved on the outer peripheral wall of the screw, so as to allow the screw to rotate without deviating.

[0017] By adopting the above technical solution, when the screw rotates, it can drive the limiting plate to rotate in the rotating groove. The rotating groove can ensure that the limiting plate keeps rotating while preventing the limiting plate from shifting, thereby preventing the screw and the limiting rod from shifting.

[0018] Optionally, anti-theft grooves are provided on the end faces of the first nut and the second nut away from the mounting block, and on the end face of the screw away from the limiting rod.

[0019] By adopting the above technical solution, the anti-theft groove can prevent unauthorized personnel from directly disassembling the DC energy meter, thereby improving the anti-theft performance of the DC energy meter.

[0020] Optionally, a buffer pad is laid on the side wall of the mounting block near the guide rail.

[0021] By adopting the above technical solution, the buffer pad can reduce the vibration and impact energy between the DC energy meter and the guide rail, as well as the external environment, thereby improving the vibration and impact resistance, and enhancing the installation stability and anti-loosening ability.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The quick installation and removal assembly in this application enables the rapid installation and removal of a DC energy meter on a guide rail. Rotating the first nut causes the lead screw to rotate. Since the top block is threadedly connected to the lead screw and slidably connected to the sliding groove, the rotation of the lead screw can move the top block. Because the top block abuts against the wedge-shaped surface of the wedge rod, the movement of the top block can move the wedge rod up and down within the lifting groove. The rising and falling of the wedge rod causes the locking strip to rise and fall. The rising and falling of the locking strip can either engage with the slot or not, thereby achieving rapid installation and removal of the DC energy meter, improving installation and removal efficiency, reducing installation and removal difficulty, and reducing labor costs. The spring can automatically tighten the locking strip against the slot, simplifying the installation process. 2. The stabilizing component in this application can prevent the DC energy meter from shifting. Rotating the second nut causes the rotating shaft to rotate, which in turn causes the gear to rotate. Since the gear and the toothed rail mesh with each other, the rotation of the gear can drive the toothed rail to move within the moving groove, thereby preventing the DC energy meter from sliding laterally on the guide rail, improving the stability and anti-interference ability of the DC energy meter, and ensuring the safety and reliability of the electrical connection. 3. The longitudinal fastener in this application can keep the DC energy meter and the guide rail longitudinally stable. When the DC energy meter is installed, the limiting rod and the screw will be inserted into the limiting groove of the guide rail simultaneously. After installation, the screw is rotated, and the rotation of the screw will drive the limiting rod to rotate in the limiting groove, thereby realizing the longitudinal stability between the DC energy meter and the guide rail, and further improving the stability and anti-interference ability of the DC energy meter. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 yes Figure 1 A cross-sectional structural diagram from another perspective; Figure 3 yes Figure 1 Partial structural diagram; Figure 4 yes Figure 2 An enlarged schematic diagram of part A in the middle; Figure 5 yes Figure 3 Enlarged schematic diagram of part B.

[0025] Reference numerals: 1. DC energy meter; 11. Mounting block; 12. Clip; 13. Guide rail; 14. Slot; 15. Rotating slot; 2. Quick-release assembly; 21. First nut; 22. Lead screw; 23. Top block; 24. Wedge rod; 25. Spring; 26. Lifting slot; 27. Guide component; 271. Guide block; 272. Guide slot; 3. Stabilizing assembly; 31. Second nut; 32. Rotating shaft; 33. Gear; 34. Gear rail; 35. Moving slot; 4. Longitudinal fastener; 41. Screw; 411. Limiting plate; 42. Limiting rod; 43. Limiting slot; 5. Anti-theft slot. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0027] This application discloses a DC rail-mounted energy meter, referring to... Figure 1 , Figure 2 and Figure 3 The DC rail energy meter includes a DC energy meter 1, a mounting block 11 welded to the side wall of the DC energy meter 1, a retaining strip 12 mounted on the side wall of the mounting block 11, a guide rail 13 fixedly mounted on one side of the DC energy meter 1, a retaining groove 14 opened on the guide rail 13, a quick installation and removal component 2 mounted on the mounting block 11, and a stabilizing component 3 mounted on the mounting block 11.

[0028] Align the clip 12 on the mounting block 11 of the DC energy meter 1 with the slot 14 on the guide rail 13. At this time, the quick installation and removal component 2 in this embodiment can retract the clip 12. After retraction, the DC energy meter 1 can be installed. After installation, the clip 12 can automatically abut against the slot 14. When disassembly is required, the quick installation and removal component 2 can directly retract the clip 12. After retraction, the DC energy meter 1 can be disassembled, thereby realizing quick installation and removal of the DC energy meter 1 on the guide rail 13, improving installation and removal efficiency, reducing installation and removal difficulty and labor costs. The stabilizing component 3 can keep the DC energy meter 1 and the guide rail 13 stable after the DC energy meter 1 is installed, thereby preventing the DC energy meter 1 from shifting during use. In this embodiment, two sets of clips 12 are symmetrically arranged, and two sets of slots 14 are symmetrically opened. The abutment of the two sets of clips 12 and the two sets of slots 14 can increase the stability of the DC energy meter 1.

[0029] Reference Figure 3 , Figure 4 and Figure 5 To enable rapid installation and disassembly of the DC energy meter 1, the rapid installation and disassembly assembly 2 in this embodiment includes a first nut 21, a lead screw 22, a top block 23, a wedge rod 24, a spring 25, and a guide 27. The first nut 21 is rotatably mounted on the side wall of the mounting block 11. The lead screw 22 is rotatably mounted inside the mounting block 11 and is fixedly connected to the first nut 21. A sliding groove is provided inside the mounting block 11. The top block 23 is threadedly connected to the lead screw 22, and one end is slidably connected to the sliding groove. A lifting groove 26 is provided inside the mounting block 11. The wedge rod 24 is lifted and installed in the lifting groove 26, and the wedge surface abuts against the top block 23. The end of the wedge block away from the top block 23 is fixedly connected to the retaining strip 12. Two sets of springs 25 are symmetrically arranged. One end of each set of springs 25 is fixedly connected to the retaining strip 12, and the other end is fixedly connected to the inner top wall of the mounting block 11. The guide 27 is installed on the side wall of the mounting block 11 near the guide rail 13.

[0030] When the DC energy meter 1 needs to be disassembled, the first nut 21 is rotated. The rotation of the first nut 21 drives the lead screw 22 to rotate. Since the top block 23 is threadedly connected to the lead screw 22 and slidably connected to the sliding groove, the rotation of the lead screw 22 can drive the top block 23 to move. Since the top block 23 abuts against the wedge-shaped surface of the wedge rod 24, the movement of the top block 23 can drive the wedge rod 24 to rise and fall within the lifting groove 26. The rise and fall of the wedge rod 24 drives the locking strip 12 to rise and fall. The rise and fall of the locking strip 12 can complete the abutment with the locking groove 14 or not abut, thereby realizing the rapid installation and disassembly of the DC energy meter 1, improving the installation and disassembly efficiency, reducing the installation and disassembly difficulty, and reducing labor costs. The spring 25 can automatically tighten the locking strip 12 against the locking groove 14, simplifying the installation process.

[0031] In this embodiment, two sets of wedge rods 24 are symmetrically arranged, and four sets of springs 25 are symmetrically arranged. The two sets of wedge rods 24 can drive the two sets of locking strips 12 to abut against the two sets of locking slots 14, thereby increasing the stability of the DC energy meter 1. The four sets of springs 25 can prevent the locking strips 12 from tilting during the lifting and lowering process, and can also increase the contact force between the locking strips 12 and the locking slots 14, further increasing the stability of the DC energy meter 1.

[0032] Reference Figure 1 To ensure accurate positioning of the DC energy meter 1, the guide component 27 in this embodiment includes a guide block 271. The guide block 271 is welded to the side wall of the mounting block 11 near the guide rail 13. The guide rail 13 has a guide groove 272. Before installing the DC energy meter 1, the guide block 271 is aligned with the guide groove 272 and a socket connection is made. The DC energy meter 1 is installed at the same time as the socket connection, thereby reducing the adjustment time during the installation of the DC energy meter 1.

[0033] Reference Figure 1 , Figure 4 and Figure 5 In this embodiment, the stabilizing component 3 can keep the installed electricity meter and the guide rail 13 stable and prevent the DC electricity meter 1 from shifting. It includes a second nut 31, a rotating shaft 32, a gear 33, a toothed rail 34 and a longitudinal fastener 4. The second nut 31 is rotatably installed on the side wall of the mounting block 11 away from the first nut 21. The rotating shaft 32 is rotatably installed in the mounting block 11 and one end is fixedly connected to the second nut 31. The gear 33 is sleeved on the outer peripheral wall of the rotating shaft 32. The mounting block 11 and the guide rail 13 are provided with a moving groove 35. The toothed rail 34 is movably installed in the moving groove 35 and meshes with the gear 33. The longitudinal fastener 4 is installed on the side wall of the mounting block 11.

[0034] After the DC energy meter 1 is installed, rotate the second nut 31. The rotation of the second nut 31 drives the rotating shaft 32 to rotate, and the rotation of the second rotating shaft 32 drives the gear 33 to rotate. Since the gear 33 and the toothed rail 34 mesh with each other, the rotation of the gear 33 can drive the toothed rail 34 to move within the moving groove 35, thereby preventing the DC energy meter 1 from sliding laterally on the guide rail 13, improving the stability and anti-interference ability of the DC energy meter 1, and ensuring the safety and reliability of the electrical connection.

[0035] Reference Figure 4Even after the DC energy meter 1 is installed, longitudinal displacement may still occur. Therefore, the longitudinal fastener 4 in this embodiment includes a screw 41 and a limiting rod 42. The screw 41 is rotatably installed on the side wall of the mounting block 11 away from the second nut 31. The limiting rod 42 is fixedly installed on the end of the screw 41. A limiting groove 43 is provided on the guide rail 13. When the DC energy meter 1 is installed, the limiting rod 42 and the screw 41 will be inserted into the limiting groove 43 of the guide rail 13 at the same time. After installation, the screw 41 is rotated, and the rotation of the screw 41 drives the limiting rod 42 to rotate in the limiting groove 43, thereby realizing the longitudinal stabilization between the DC energy meter 1 and the guide rail 13, and further improving the stability and anti-interference ability of the DC energy meter 1.

[0036] Reference Figure 4 When the screw 41 rotates, it may deviate. To prevent the screw 41 from deviating, a rotating groove 15 is provided on the side wall of the mounting block 11 in this embodiment. The limiting disk 411 is rotatably installed in the rotating groove 15 and sleeved on the outer peripheral wall of the screw 41. When the screw 41 rotates, it can drive the limiting disk 411 to rotate in the rotating groove 15. The rotating groove 15 can ensure that the limiting disk 411 keeps rotating while preventing the limiting disk 411 from deviating, thereby preventing the screw 41 and the limiting rod 42 from deviating.

[0037] Reference Figure 1 and Figure 2 To prevent unauthorized personnel from disassembling the DC energy meter 1, anti-theft grooves 5 are provided on the end faces of the first nut 21 and the second nut 31 away from the mounting block 11, and on the end face of the screw 41 away from the limiting rod 42, thereby improving the anti-theft performance of the DC energy meter 1. In this embodiment, the anti-theft groove 5 is an equilateral triangular anti-theft groove 5, which is a preferred embodiment. It can also be set as a regular hexagonal anti-theft groove 5, etc.

[0038] Reference Figure 1 During use, the DC energy meter 1 may be affected by vibrations from the external environment. Therefore, in this embodiment, a buffer pad is laid on the side wall of the mounting block 11 near the guide rail 13. The buffer pad can reduce the vibration and impact energy between the DC energy meter 1 and the guide rail 13 as well as the external environment, thereby improving the vibration and impact resistance, enhancing the installation stability and anti-loosening ability. In this embodiment, the buffer pad is made of silicone rubber, which is a preferred material in this embodiment. It can also be made of polyurethane or other materials.

[0039] The implementation principle of the DC rail energy meter in this application embodiment is as follows: Rotating the first nut 21 causes the lead screw 22 to rotate. Since the top block 23 is threadedly connected to the lead screw 22 and slidably connected to the sliding groove, the rotation of the lead screw 22 can drive the top block 23 to move. Since the top block 23 abuts against the wedge-shaped surface of the wedge rod 24, the movement of the top block 23 can drive the wedge rod 24 to rise and fall within the lifting groove 26. The rise and fall of the wedge rod 24 drives the locking strip 12 to rise and fall. The rise and fall of the locking strip 12 can complete the abutment with the locking groove 14 or not, thereby realizing the rapid installation and disassembly of the DC energy meter 1, improving the installation and disassembly efficiency, reducing the installation and disassembly difficulty, and reducing labor costs. The spring 25 can automatically tighten the locking strip 12 against the locking groove 14, simplifying the installation process. After the DC energy meter 1 is installed, rotate the second nut 31. The rotation of the second nut 31 drives the rotating shaft 32 to rotate, and the rotation of the second rotating shaft 32 drives the gear 33 to rotate. Since the gear 33 and the toothed rail 34 mesh with each other, the rotation of the gear 33 can drive the toothed rail 34 to move within the moving groove 35, thereby preventing the DC energy meter 1 from sliding laterally on the guide rail 13, improving the stability and anti-interference ability of the DC energy meter 1, and ensuring the safety and reliability of the electrical connection. When the DC energy meter 1 is installed, the limiting rod 42 and the screw 41 will be inserted into the limiting groove 43 of the guide rail 13 simultaneously. After installation, the screw 41 is rotated, and the rotation of the screw 41 drives the limiting rod 42 to rotate in the limiting groove 43, thereby realizing the longitudinal stabilization between the DC energy meter 1 and the guide rail 13, and further improving the stability and anti-interference ability of the DC energy meter 1.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above are all optional embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A DC rail energy meter, characterized in that: The device includes a DC energy meter (1), a mounting block (11) is provided on the side wall of the DC energy meter (1), a locking strip (12) is provided on the side wall of the mounting block (11), a guide rail (13) is provided on one side of the DC energy meter (1), a slot (14) is provided on the guide rail (13) for engaging the locking strip (12) with the guide rail (13), a quick-installation assembly (2) is provided on the mounting block (11) for quick installation and removal of the DC energy meter (1), and a stabilizing assembly (3) is provided on the mounting block (11) for preventing the DC energy meter (1) from shifting.

2. The DC rail energy meter according to claim 1, characterized in that: The quick-release assembly (2) includes a first nut (21), a lead screw (22), a top block (23), a wedge rod (24), a spring (25), and a guide (27). The first nut (21) is rotatably mounted on the side wall of the mounting block (11). The lead screw (22) is rotatably mounted inside the mounting block (11) and fixedly connected to the first nut (21). A sliding groove is provided inside the mounting block (11). The top block (23) is threaded onto the lead screw (22), and one end is slidably connected to the sliding groove. A lifting groove (26) is provided inside the mounting block (11). The wedge rod (24) is raised and lowered in the lifting groove (26), and the wedge surface abuts against the top block (23). The end of the wedge rod (24) away from the top block (23) is fixedly connected to the locking strip (12). Two sets of springs (25) are symmetrically arranged. One end of each set of springs (25) is fixedly connected to the locking strip (12), and the other end is fixedly connected to the inner top wall of the mounting block (11). The guide (27) is set on the side wall of the mounting block (11) near the guide rail (13) for quick positioning of the DC energy meter (1).

3. The DC rail energy meter according to claim 2, characterized in that: The guide member (27) includes a guide block (271), which is disposed on the side wall of the mounting block (11) near the guide rail (13). The guide rail (13) has a guide groove (272) for inserting the guide block (271) into the guide rail (13).

4. The DC rail energy meter according to claim 2, characterized in that: The stabilizing component (3) includes a second nut (31), a rotating shaft (32), a gear (33), a toothed rail (34), and a longitudinal fastener (4). The second nut (31) is rotatably disposed on the side wall of the mounting block (11) away from the first nut (21). The rotating shaft (32) is rotatably disposed inside the mounting block (11), and one end is fixedly connected to the second nut (31). The gear (33) is sleeved on the outer peripheral wall of the rotating shaft (32). The mounting block (11) and the guide rail (13) are provided with a moving groove (35). The toothed rail (34) is movably disposed in the moving groove (35) and meshes with the gear (33). The longitudinal fastener (4) is disposed on the side wall of the mounting block (11) to keep the DC energy meter (1) and the guide rail (13) longitudinally stable.

5. The DC rail energy meter according to claim 4, characterized in that: The longitudinal fastener (4) includes a screw (41) and a limiting rod (42). The screw (41) is rotatably mounted on the side wall of the mounting block (11) away from the second nut (31). The limiting rod (42) is located at the end of the screw (41). The guide rail (13) has a limiting groove (43) for inserting and rotating the limiting rod (42).

6. The DC rail energy meter according to claim 5, characterized in that: A rotating groove (15) is provided on the side wall of the mounting block (11). A limiting disk (411) is rotatably arranged in the rotating groove (15), and the limiting disk (411) is sleeved on the outer peripheral wall of the screw (41) to make the screw (41) rotate without deviating.

7. The DC rail energy meter according to claim 5, characterized in that: Anti-theft grooves (5) are provided on the end faces of the first nut (21) and the second nut (31) away from the mounting block (11), and on the end face of the screw (41) away from the limiting rod (42).

8. The DC rail energy meter according to claim 1, characterized in that: A buffer pad is laid on the side wall of the mounting block (11) near the guide rail (13).

Images