Electric power metering cabinet with adjustable internal space

Abstract

The invention belongs to the technical field of metering cabinets, and discloses an electric power metering cabinet with an adjustable internal space, which comprises a cabinet body, a plurality of vertical adjusting mechanisms, a self-adaptive heat dissipation mechanism and a filtering mechanism, and is characterized in that the vertical adjusting mechanisms are mounted in the cabinet body, the self-adaptive heat dissipation mechanism is mounted on the rear sides of the vertical adjusting mechanisms, and the filtering mechanism is mounted in the cabinet body. The filtering mechanism is installed on the rear side of the cabinet body, the self-adaptive heat dissipation mechanism comprises a lower side fixing frame, rotating frames, a first tension spring, a first wiring terminal and a heat dissipation fan, the lower side fixing frame is fixedly installed on the rear side of the vertical adjusting mechanism, and the upper sides of the two rotating frames are hinged to the front side and the rear side of the lower side fixing frame respectively. The two first tension springs are arranged on the left side and the right side of the rotating frame correspondingly. By means of the mode, the left-right position of the cooling fan can be adjusted in a self-adaptive mode, meanwhile, the up-down direction and the front-back direction of the cooling fan can be rapidly fixed, and the multiple filter screens can be rapidly unlocked or locked.

Description

Technical Field

[0001] The present invention relates to the technical field of metering cabinets, and specifically to an electric power metering cabinet with adjustable internal space. Background Art

[0002] An electric power metering cabinet is a special cabinet used for accurately measuring and counting electric energy in an electric power system. A variety of electronic devices are usually placed inside for power metering, and usually multiple current transformers, watt-hour meters, fuses, combined wiring boxes, etc. are provided. Since electronic devices of different specifications have different sizes and heat generation amounts, multiple layers of partition boards usually need to be arranged inside the electric power metering cabinet to place electronic devices of different sizes, and cooling fans need to be installed at the positions of electronic devices that require auxiliary cooling fans due to large heat generation. Except for customized cabinets, the heat dissipation positions of general cabinets are usually fixed. Therefore, electronic devices with large heat generation amounts need to be preferentially installed at positions with better heat dissipation, resulting in low space utilization rate of the electronic metering cabinet.

[0003] Chinese Patent with publication number CN217334731U proposes an electric power metering cabinet, including a cabinet body. A metering chamber and an incoming line chamber are arranged inside the cabinet body. A slope is arranged at the top of the cabinet body. An inclined observation board is rotatably connected to the front surface of the cabinet body. A convex lens sheet is arranged inside the inclined observation board. A metering groove is arranged inside the metering chamber. A metering element is movably connected inside the metering groove. The position of the metering element is consistent with the position of the convex lens sheet. A connection groove is arranged below the metering groove, and the connection groove communicates with the incoming line chamber. A ventilation device and a water cooling device are arranged inside the metering groove. A chamber door is arranged on the side surface of the incoming line chamber. A wire management groove is arranged inside the chamber door. The ventilation device includes a fan. The fan is connected to a distribution chamber through a connecting channel. A ventilation pipe is fixedly connected to the surface of the distribution chamber, and the ventilation pipe communicates with the metering groove. The water cooling device includes a water tank. The water tank is connected to a cooling chamber through a water pipe. A drip pipe is arranged at the bottom of the cooling chamber. The cooling chamber wraps the metering groove. A filter screen is arranged inside the water tank.

[0004] However, the technical solution of this patent has the following problems: This patent cannot adaptively adjust the left and right positions of the cooling fan and quickly fix the up and down and front and back positions of the cooling fan, and cannot quickly unlock or lock multiple filter screens.

[0005] Based on this, the present invention designs an electric power metering cabinet with adjustable internal space to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned drawbacks existing in the prior art, the present invention provides an electric power metering cabinet with adjustable internal space.

[0007] To achieve the above object, the present invention is realized by the following technical solutions: A power metering cabinet with adjustable internal space, including a cabinet body, further comprising: a vertical adjustment mechanism, an adaptive heat dissipation mechanism and a filtering mechanism. A plurality of the vertical adjustment mechanisms are installed in the cabinet body. The adaptive heat dissipation mechanism is installed at the rear side of the vertical adjustment mechanism. The filtering mechanism is installed at the rear side of the cabinet body. The adaptive heat dissipation mechanism includes: a lower fixed frame, a rotating frame, a first tension spring, a first terminal and a cooling fan. The lower fixed frame is fixedly installed at the rear side of the vertical adjustment mechanism. The upper sides of the two rotating frames are respectively hinged to the front and rear sides of the lower fixed frame. The two first tension springs are respectively arranged on the left and right sides of the rotating frame. One end of the first tension spring is fixedly installed at the lower side of the front rotating frame. The other end of the first tension spring is fixedly installed at the lower side of the rear rotating frame. A plurality of the first terminals are fixedly installed at the rear side of the vertical adjustment mechanism. A plurality of the cooling fans are arranged on the lower fixed frame. The power connectors of the cooling fans are electrically connected to the first terminals. The adaptive heat dissipation mechanism further includes: a sliding limit component, and the sliding limit component is installed at the rear side of the vertical adjustment mechanism.

[0008] Furthermore, the sliding limit component includes: a fixed rod, an upper sliding frame, a limiting plate and a spring. A plurality of the fixed rods are fixedly installed at the rear side of the vertical adjustment mechanism. The upper sliding frame is slidably connected to the middle side of the fixed rod. The two limiting plates are fixedly installed at the upper side of the fixed rod. The spring is arranged on the fixed rod. One end of the spring abuts against the upper sliding frame, and the other end of the spring abuts against the limiting plate.

[0009] Furthermore, the vertical adjustment mechanism includes: a C-shaped frame, a sliding plate, a support seat and a second terminal. A plurality of the C-shaped frames are fixedly installed in the cabinet body. The sliding plate is slidably connected to the C-shaped frame. A plurality of the support seats are fixedly installed at the upper side of the sliding plate. A plurality of the second terminals are fixedly installed at the rear side of the sliding plate. The lower fixed frame is fixedly installed at the rear side of the sliding plate of the vertical adjustment mechanism. A plurality of the first terminals are fixedly installed at the rear side of the sliding plate of the vertical adjustment mechanism. A plurality of the fixed rods are fixedly installed at the rear side of the sliding plate of the vertical adjustment mechanism.

[0010] Furthermore, the vertical adjustment mechanism further includes: an auxiliary component, and the auxiliary component is installed at the rear side of the sliding plate. The auxiliary component includes: a vertical receiving frame, a connecting cap and a rubber ring. The vertical receiving frame is fixedly installed at the middle rear side of the cabinet body. A plurality of first openings are formed on the left and right sides of the vertical receiving frame. The connecting cap is threadedly connected to the opening. A second opening is formed on the connecting cap. The rubber ring is clamped to the second opening of the connecting cap.

[0011] Furthermore, the auxiliary component further includes: a locking component. Two locking components are respectively installed on the left and right sides of the sliding plate. The locking component includes: a V-shaped plate, a limiting post, and a torsion spring. One end of the V-shaped plate is rotatably connected to the sliding plate through a rotating shaft. The limiting post is fixedly installed at one end of the V-shaped plate away from the rotating shaft of the V-shaped plate. Third openings are provided on both the left and right sides of the C-shaped frame. The limiting post is arranged at the third opening. The torsion spring is arranged on the rotating shaft of the V-shaped plate. One end of the torsion spring is fixedly connected to the sliding plate, and the other end of the torsion spring is fixedly connected to the V-shaped plate.

[0012] Furthermore, the filtering mechanism includes: a shielding frame, a sliding frame, a filter screen, and an air outlet channel. A plurality of fourth openings are provided on the rear side of the cabinet body. The shielding frame is fixedly installed on the front side of the fourth opening. The lower side of the sliding frame is inserted into the fourth opening. The filter screen is fixedly installed on the sliding frame. Two air outlet channels are respectively fixedly installed on the left and right sides of the cabinet body.

[0013] Furthermore, the filtering mechanism further includes: a sliding and fixing component. Two sliding and fixing components are installed on the rear side of the cabinet body.

[0014] Furthermore, the sliding and fixing component includes: a fixing strip, a pressing plate, a connecting strip, and a second tension spring. Two fixing strips are fixedly installed on the rear side wall of the cabinet body. A plurality of rectangular slots are provided on the fixing strip. The pressing plate is slidably connected to the rectangular slot. Two connecting strips are fixedly installed on the rear side of the pressing plate. One end of the second tension spring is fixedly installed on the lower side of the connecting strip, and the other end of the second tension spring is fixedly installed on the lower side of the fixing strip.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the present invention, by moving the upper sliding frame of the sliding limit component upward, the spring undergoes elastic deformation and is compressed. The heat dissipation fan is placed on the lower fixing frame and pressed downward, causing the rotating frame to rotate. The rotation of the rotating frame causes the first tension spring to undergo elastic deformation. The power connector of the heat dissipation fan is connected to the first wiring terminal. At this time, the first tension spring that has undergone elastic deformation has a tendency to recover, causing the rotating frame that has rotated to have a tendency to return to its initial state, making the two rotating frames closely adhere to the lower shell of the heat dissipation fan, quickly clamping and fixing the front and rear positions of the heat dissipation fan. Releasing the upper sliding frame, the spring that has undergone elastic deformation recovers and pushes the upper sliding frame downward, causing the upper sliding frame to be stuck on the upper side of the heat dissipation fan, quickly fixing the upper and lower positions of the heat dissipation fan, which is beneficial for adaptively adjusting the left and right positions of the heat dissipation fan while quickly fixing the upper and lower positions and the front and rear positions of the heat dissipation fan.

[0016] 2. By rotating the locking component, the sliding plate can be quickly locked and unlocked. The sliding plate is inserted into the C-shaped frames at different positions to change the internal space size of the cabinet body, so as to adapt to electronic devices of different specifications. Pull the connecting bar of the sliding fixing component upward. The upward movement of the connecting bar drives the pressing plate to move upward, causing the second tension spring to undergo elastic deformation and be stretched. The pressing plate moves upward away from the sliding frame. At this time, the sliding frame can be pulled out from the fourth opening, and a new sliding frame can be replaced, which is beneficial to unlocking or locking multiple filters at one step and facilitating the quick replacement of the filters. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 Schematic three-dimensional structure of the present invention Figure 1 。

[0019] Figure 2 Front view of the present invention.

[0020] Figure 3 Schematic structural diagram of the present invention with part of the cabinet body removed.

[0021] Figure 4 Schematic three-dimensional structure of the present invention Figure 2 。

[0022] Figure 5 Partial structural schematic diagram of the vertical adjustment mechanism of the present invention Figure 1 。

[0023] Figure 6 For Figure 5 the enlarged view of A in

[0024] Figure 7 Partial structural schematic diagram of the adaptive heat dissipation mechanism of the present invention.

[0025] Figure 8 For Figure 7 the enlarged view of B in

[0026] Figure 9 Partial structural schematic diagram of the vertical adjustment mechanism of the present invention Figure 2 。

[0027] Figure 10 Partial structural schematic diagram of the filtering mechanism of the present invention Figure 1 。

[0028] Figure 11 Partial structural schematic diagram of the filtering mechanism of the present invention Figure 2 .

[0029] The reference numerals in the figure respectively represent: 1, cabinet body; 2, vertical adjustment mechanism; 21, C-shaped frame; 22, sliding plate; 23, support seat; 24, second terminal; 25, vertical accommodation frame; 26, connection cap; 27, rubber ring sleeve; 28, V-shaped plate; 29, limit post; 210, torsion spring; 3, adaptive heat dissipation mechanism; 31, lower fixed frame; 32, rotating frame; 33, first tension spring; 34, first terminal; 35, heat dissipation fan; 36, fixed rod; 37, upper sliding frame; 38, limit plate; 39, spring; 4, filtering mechanism; 41, shielding frame; 42, sliding frame; 43, filter screen; 44, air outlet channel; 45, fourth opening; 46, fixing strip; 47, pressing plate; 48, connecting strip; 49, second tension spring; 410, rectangular slot. Specific embodiments

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] The present invention will be further described below with reference to the embodiments. The "left", "right", "front", "rear", "upper", and "lower" mentioned in the following description are oriented in the perspective direction of the front view.

[0032] Embodiment 1: In some embodiments, please refer to Figures 1 - 11, a power metering cabinet with adjustable internal space, including a cabinet body 1, and further including: a vertical adjustment mechanism 2, an adaptive heat dissipation mechanism 3, and a filtering mechanism 4. A plurality of the vertical adjustment mechanisms 2 are installed inside the cabinet body 1. The adaptive heat dissipation mechanism 3 is installed at the rear side of the vertical adjustment mechanism 2. The filtering mechanism 4 is installed at the rear side of the cabinet body 1. The adaptive heat dissipation mechanism 3 includes: a lower fixed frame 31, a rotating frame 32, a first tension spring 33, a first terminal 34, and a cooling fan 35. The lower fixed frame 31 is fixedly installed at the rear side of the vertical adjustment mechanism 2. The upper sides of the two rotating frames 32 are respectively hinged to the front and rear sides of the lower fixed frame 31. The two first tension springs 33 are respectively arranged on the left and right sides of the rotating frame 32. One end of the first tension spring 33 is fixedly installed at the lower side of the front rotating frame 32, and the other end of the first tension spring 33 is fixedly installed at the lower side of the rear rotating frame 32. A plurality of the first terminals 34 are fixedly installed at the rear side of the vertical adjustment mechanism 2. A plurality of the cooling fans 35 are arranged on the lower fixed frame 31. The power connector of the cooling fan 35 is electrically connected to the first terminal 34. The adaptive heat dissipation mechanism 3 further includes: a sliding limit assembly, and the sliding limit assembly is installed at the rear side of the vertical adjustment mechanism 2.

[0033] The vertical adjustment mechanism 2 is used to adjust the vertical space size inside the cabinet body 1 to adapt to different sizes of electronic devices, so that electronic devices of the same specification size and without mutual interference during operation can be installed in the same vertical space, thereby improving the space utilization rate inside the cabinet body 1. The adaptive heat dissipation device can manually and steplessly adjust the heat dissipation orientation according to requirements, so as to improve the heat dissipation efficiency at the position of electronic devices with high heat dissipation requirements, and reduce the heat dissipation efficiency at the position of electronic devices with low heat dissipation requirements, which is beneficial to adapting to different heat dissipation requirements at different positions and indirectly improving the flexible installation range of electronic devices. The filtering mechanism 4 filters the air entering the cabinet body 1 to reduce dust and other impurities inside the cabinet body 1 and improve the service life of the electronic devices inside the cabinet body 1.

[0034] Place the cooling fan 35 of the adaptive heat dissipation mechanism 3 on the lower fixed frame 31 according to actual needs. The movement of the cooling fan 35 towards the lower fixed frame 31 drives the rotating frame 32 to rotate. The rotation of the rotating frame 32 causes the first tension spring 33 to undergo elastic deformation. Connect the power connector of the cooling fan 35 to the first terminal 34. At this time, the first tension spring 33 undergoing elastic deformation has a tendency to recover, so that the rotating frame 32 undergoing rotation has a tendency to return to the initial state, making the two rotating frames 32 closely adhere to the lower shell of the cooling fan 35, and quickly clamping and fixing the front and rear orientations of the cooling fan 35.

[0035] Such as Figure 3 、 Figure 7 、 Figure 8As shown in the figure, the sliding limit component includes: a fixed rod 36, an upper sliding frame 37, a limit plate 38 and a spring 39. A plurality of the fixed rods 36 are fixedly installed at the rear side of the vertical adjustment mechanism 2. The upper sliding frame 37 is slidably connected to the middle side of the fixed rod 36. Two of the limit plates 38 are fixedly installed on the upper side of the fixed rod 36. The spring 39 is arranged on the fixed rod 36. One end of the spring 39 abuts against the upper sliding frame 37, and the other end of the spring 39 abuts against the limit plate 38.

[0036] Move the upper sliding frame 37 of the sliding limit component upward, and the spring 39 undergoes elastic deformation and is compressed. At this time, place the heat dissipation fan 35 on the lower fixed frame 31 and press it downward. After the front and rear positions of the heat dissipation fan 35 are quickly clamped by the rotating frame 32, release the upper sliding frame 37. The spring 39 that has undergone elastic deformation restores and pushes the upper sliding frame 37 downward, so that the upper sliding frame 37 is stuck on the upper side of the heat dissipation fan 35, which is beneficial to quickly fixing the up and down positions of the heat dissipation fan 35.

[0037] Embodiment 2: In some embodiments, as Figures 1 - 11 shown, as a preferred embodiment of the present invention, the vertical adjustment mechanism 2 includes: a C-shaped frame 21, a sliding plate 22, a support seat 23 and a second wiring terminal 24. A plurality of the C-shaped frames 21 are fixedly installed in the cabinet 1. The sliding plate 22 is slidably connected to the C-shaped frame 21. A plurality of the support seats 23 are fixedly installed on the upper side of the sliding plate 22. A plurality of the second wiring terminals 24 are fixedly installed at the rear side of the sliding plate 22. The lower fixed frame 31 is fixedly installed at the rear side of the sliding plate 22 of the vertical adjustment mechanism 2. A plurality of the first wiring terminals 34 are fixedly installed at the rear side of the sliding plate 22 of the vertical adjustment mechanism 2. A plurality of the fixed rods 36 are fixedly installed at the rear side of the sliding plate 22 of the vertical adjustment mechanism 2.

[0038] As Figure 5 、 Figure 6 、 Figure 9 shown, pull out the sliding plate 22 of the vertical adjustment mechanism 2 outward, so that the sliding plate 22 moves away from the C-shaped frame 21. After installing the electronic device on the support seat 23 of the sliding plate 22, electrically connect the electronic device and the input end of the second wiring terminal 24 through a connecting wire. After inserting the sliding plate 22 back into the C-shaped frame 21, the installation of the electronic device can be completed.

[0039] The vertical adjustment mechanism 2 further includes: an auxiliary component, which is installed at the rear side of the sliding plate 22. The auxiliary component includes: a vertical accommodation frame 25, a connection cap 26, and a rubber ring 27. The vertical accommodation frame 25 is fixedly installed at the middle rear side of the cabinet body 1. A plurality of first openings are formed on the left and right sides of the vertical accommodation frame 25. The connection cap 26 is threadedly connected to the opening. A second opening is formed on the connection cap 26, and the rubber ring 27 is snap-fitted to the second opening of the connection cap 26.

[0040] Unscrew the connection cap 26 of the auxiliary component, pass the external circuit through the rubber ring 27, and then screw on the connection cap 26. At this time, the external circuit is located inside the vertical accommodation frame 25. Quickly insert and connect the external circuit and the insertion end of the second wiring terminal 24 to complete the electrical connection between the external circuit and the electronic device.

[0041] The auxiliary component further includes: a locking component. Two locking components are respectively installed on the left and right sides of the sliding plate 22. The locking component includes: a V-shaped plate 28, a limit post 29, and a torsion spring 210. One end of the V-shaped plate 28 is rotatably connected to the sliding plate 22 through a rotating shaft. The limit post 29 is fixedly installed at the end of the V-shaped plate 28 away from the rotating shaft of the V-shaped plate 28. Third openings are formed on both the left and right sides of the C-shaped frame 21, and the limit post 29 is arranged at the third opening. The torsion spring 210 is arranged on the rotating shaft of the V-shaped plate 28. One end of the torsion spring 210 is fixedly connected to the sliding plate 22, and the other end of the torsion spring 210 is fixedly connected to the V-shaped plate 28.

[0042] Rotate the V-shaped plate 28 of the locking component. The rotation of the V-shaped plate 28 drives the limit post 29 to leave the third opening, and the torsion spring 210 undergoes elastic deformation. At this time, the sliding plate 22 is in an unlocked state, and the sliding plate 22 can be quickly pulled out. After inserting the sliding plate 22 back into the C-shaped plate, the deformed torsion spring 210 returns to its original state, pushing the V-shaped plate 28 back to its initial position, so that the limit post 29 on the V-shaped plate 28 returns to the third opening, quickly locking the sliding plate 22, which is beneficial to quickly locking and unlocking the sliding plate 22.

[0043] As Figure 4 、 Figure 10 、 Figure 11 As shown in

[0044] The cooling fan 35 draws air from outside the cabinet 1 into the cabinet 1 , and after being filtered by the filter 43 on the sliding frame 42 , the air enters the cabinet 1 to dissipate heat for electronic components in the cabinet 1 , and the hot air is discharged from the cabinet 1 through the air outlet duct 44 .

[0045] The filtering mechanism 4 further comprises: a sliding fixing assembly, two of which are mounted on the rear side of the cabinet 1 .

[0046] The sliding fixing assembly includes: a fixing bar 46, a pressure plate 47, a connecting bar 48 and a second tension spring 49, the two fixing bars 46 are fixedly mounted on the rear side wall of the cabinet 1, a plurality of rectangular slots 410 are opened on the fixing bar 46, the pressure plate 47 is slidably connected to the rectangular slots 410, the two connecting bars 48 are fixedly mounted on the rear side of the pressure plate 47, one end of the second tension spring 49 is fixedly mounted on the lower side of the connecting bar 48, and the other end of the second tension spring 49 is fixedly mounted on the lower side of the fixing bar 46.

[0047] When the filter 43 is to be replaced, the connecting strip 48 of the sliding fixing assembly is pulled upwards. The connecting strip 48 moves upwards, driving the pressure plate 47 upwards, causing the second tension spring 49 to undergo elastic deformation and be stretched. The pressure plate 47 moves upwards and leaves the sliding frame 42. At this time, the sliding frame 42 is pulled out of the fourth opening 45, and a new sliding frame 42 can be replaced. After the replacement is completed, the connecting strip 48 is loosened, and the elastically deformed second tension spring 49 is restored to cause the connecting strip 48 to move downwards. The connecting strip 48 moves downwards, driving the pressure plate 47 downwards, locking the upper side of the sliding frame 42, which is beneficial for unlocking or locking multiple sliding plates 22 in one step.

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

Claims

1. An electric power metering cabinet with adjustable internal space, comprising a cabinet body (1), characterized in that: Also includes: A vertical adjustment mechanism (2), an adaptive heat dissipation mechanism (3) and a filtering mechanism (4), wherein a plurality of the vertical adjustment mechanisms (2) are installed in a cabinet (1), the adaptive heat dissipation mechanism (3) is installed on the rear side of the vertical adjustment mechanism (2), and the filtering mechanism (4) is installed on the rear side of the cabinet (1), and the adaptive heat dissipation mechanism (3) comprises: a lower fixing frame (31), a rotating frame (32), a first tension spring (33), a first wiring terminal (34) and a cooling fan (35), wherein the lower fixing frame (31) is fixedly installed on the rear side of the vertical adjustment mechanism (2), and the upper sides of the two rotating frames (32) are respectively hinged on the front and rear sides of the lower fixing frame (31), and the two rotating frames (32) are respectively hinged on the front and rear sides of the lower fixing frame (31). The first tension springs (33) are respectively arranged on the left and right sides of the rotating frame (32), one end of the first tension spring (33) is fixedly mounted on the lower side of the front rotating frame (32), and the other end of the first tension spring (33) is fixedly mounted on the lower side of the rear rotating frame (32), a plurality of the first wiring terminals (34) are fixedly mounted on the rear side of the vertical adjustment mechanism (2), a plurality of the cooling fans (35) are arranged on the lower fixed frame (31), and the power connectors of the cooling fans (35) are electrically connected to the first wiring terminals (34), and the adaptive cooling mechanism (3) also includes: a sliding limit assembly, which is mounted on the rear side of the vertical adjustment mechanism (2).

2. The electric power metering cabinet with adjustable internal space according to claim 1, characterized in that: The sliding limiter assembly comprises: a fixed rod (36), an upper sliding frame (37), a limiter plate (38) and a spring (39); a plurality of the fixed rods (36) are fixedly mounted on the rear side of the vertical adjustment mechanism (2); the upper sliding frame (37) is slidably connected to the middle side of the fixed rod (36); two limiter plates (38) are fixedly mounted on the upper side of the fixed rod (36); the spring (39) is arranged on the fixed rod (36); one end of the spring (39) is in close contact with the upper sliding frame (37); and the other end of the spring (39) is in close contact with the limiter plate (38).

3. The electric power metering cabinet with adjustable internal space according to claim 2, characterized in that: The vertical adjustment mechanism (2) comprises: a C-shaped frame (21), a sliding plate (22), a support seat (23) and a second wiring terminal (24); a plurality of the C-shaped frames (21) are fixedly mounted in the cabinet (1); the sliding plate (22) is slidably connected to the C-shaped frame (21); a plurality of the support seats (23) are fixedly mounted on the upper side of the sliding plate (22); a plurality of the second wiring terminals (24) are fixedly mounted on the rear side of the sliding plate (22); the lower fixed frame (31) is fixedly mounted on the rear side of the sliding plate (22) of the vertical adjustment mechanism (2); a plurality of the first wiring terminals (34) are fixedly mounted on the rear side of the sliding plate (22) of the vertical adjustment mechanism (2); and a plurality of the fixing rods (36) are fixedly mounted on the rear side of the sliding plate (22) of the vertical adjustment mechanism (2).

4. The electric power metering cabinet with adjustable internal space according to claim 3, characterized in that: The vertical adjustment mechanism (2) further comprises: an auxiliary component, the auxiliary component being mounted on the rear side of the sliding plate (22), the auxiliary component comprising: a vertical accommodating frame (25), a connecting cap (26) and a rubber ring (27), the vertical accommodating frame (25) being fixedly mounted on the middle rear side of the cabinet (1), a plurality of first openings being formed on the left and right sides of the vertical accommodating frame (25), the connecting cap (26) being threadedly connected to the openings, a second opening being formed on the connecting cap (26), and the rubber ring (27) being snap-fitted to the second opening of the connecting cap (26).

5. The electric power metering cabinet with adjustable internal space according to claim 4, characterized in that: The auxiliary component further comprises: a locking component, wherein two locking components are respectively mounted on the left and right sides of the sliding plate (22).

6. The electric power metering cabinet with adjustable internal space according to claim 1, characterized in that: The filtering mechanism (4) comprises: a shielding frame (41), a sliding frame (42), a filter (43) and an air outlet channel (44); a plurality of fourth openings (45) are provided on the rear side of the cabinet (1); the shielding frame (41) is fixedly mounted on the front side of the fourth openings (45); the lower side of the sliding frame (42) is plugged into the fourth openings (45); the filter (43) is fixedly mounted on the sliding frame (42); and the two air outlet channels (44) are respectively fixedly mounted on the left and right sides of the cabinet (1).

7. The electric power metering cabinet with adjustable internal space according to claim 6, characterized in that: The filtering mechanism (4) further comprises: a sliding fixing assembly, two of the sliding fixing assemblies being mounted on the rear side of the cabinet (1).

8. The electric power metering cabinet with adjustable internal space according to claim 7, characterized in that: The sliding fixing assembly comprises: a fixing strip (46), a pressure plate (47), a connecting strip (48) and a second tension spring (49); the two fixing strips (46) are fixedly mounted on the rear side wall of the cabinet (1); a plurality of rectangular slots (410) are formed on the fixing strip (46); the pressure plate (47) is slidably connected to the rectangular slots (410); the two connecting strips (48) are fixedly mounted on the rear side of the pressure plate (47); one end of the second tension spring (49) is fixedly mounted on the lower side of the connecting strip (48); and the other end of the second tension spring (49) is fixedly mounted on the lower side of the fixing strip (46).

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