High-low voltage power distribution cabinet convenient to install

Abstract

The invention relates to the technical field of power distribution cabinets, and provides a high-low voltage power distribution cabinet convenient to install, which comprises a cabinet body, an installation guide rail, a terminal and a distance adjusting mechanism, the installation guide rail is arranged in the cabinet body, the distance adjusting mechanism comprises a deflector rod, a plurality of connecting rods and a plurality of sliding parts, the middle part of the deflector rod is hinged to the installation guide rail, and the plurality of connecting rods are sequentially hinged end to end; the end of the shifting rod is hinged to the end of the first connecting rod, the shifting rod is used for enabling the connecting rods to be unfolded or folded after swinging, the sliding parts are arranged on the installation guide rail in a sliding mode and hinged to the middles of the connecting rods, and the terminals are arranged on the sliding parts respectively. According to the technical scheme, the problem that in the prior art, due to the fact that the terminals of the terminal strip need to be tightly arranged, operation is inconvenient during installation and maintenance is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a high and low voltage power distribution cabinet that is easy to install. Background Art

[0002] With the widespread application and continuous development of power systems, high and low voltage distribution cabinets are widely used in various industrial, commercial and civil facilities as key equipment for power distribution, control and protection. It can achieve the reasonable distribution of electric energy, ensure the stable operation of electrical equipment, and timely monitor and protect circuit faults. It is the core hub for maintaining the reliability of power supply.

[0003] In the internal structure of high and low voltage distribution cabinets, terminal blocks play an important role as a bridge to connect various electrical components and transmit power signals. Numerous wires need to be firmly connected to the corresponding electrical components through terminal blocks to ensure the smooth flow of current. Terminal blocks need to be grouped by circuit type and arranged in a prescribed order, such as AC current circuit, AC voltage circuit, signal circuit, etc. This helps to quickly locate problems and improve maintenance efficiency. Therefore, the terminals of the terminal blocks need to be closely arranged to give a clear and obvious grouping mark.

[0004] During the installation phase, the requirement for closely arranged terminals restricts hand movements, increasing the difficulty and time cost of operation and reducing installation efficiency. During the maintenance phase, the extremely small gap between adjacent terminals makes it easy for operating tools to accidentally touch the adjacent terminals, increasing the difficulty and time cost of operation and reducing maintenance efficiency.

[0005] In summary, the installation and maintenance problems caused by the close arrangement of terminal blocks in existing high and low voltage distribution cabinets need to be solved urgently to meet the growing power demand and the requirements of efficient operation and maintenance. Summary of the invention

[0006] The present invention provides a high and low voltage power distribution cabinet that is easy to install, which solves the problem in the related art that the terminals of the terminal row need to be closely arranged, resulting in inconvenience in installation and maintenance.

[0007] The technical solution of the present invention is as follows: A high and low voltage power distribution cabinet that is easy to install comprises a cabinet body, a mounting rail, a terminal and a spacing adjustment mechanism, wherein the mounting rail is arranged in the cabinet body, The distance adjustment mechanism includes a lever, multiple connecting rods and multiple sliding parts. The middle part of the lever is hinged on the mounting guide rail, and the multiple connecting rods are hinged in sequence head to tail. The end of the lever is hinged to the end of the first connecting rod. After the lever swings, it is used to expand or retract the multiple connecting rods. The sliding part is slidably arranged on the mounting guide rail, and the sliding part is hinged to the middle part of the connecting rod. There are multiple terminals, which are respectively arranged on the multiple sliding parts.

[0008] Optionally, it also includes a high-pressure nitrogen bottle, a push-type nozzle, a pressure head and a memory spring, the high-pressure nitrogen bottle is arranged in the cabinet, the push-type nozzle is arranged at the bottle mouth of the high-pressure nitrogen bottle, the pressure head is slidably arranged relative to the push-type nozzle, the top end of the memory spring acts on the inner wall of the cabinet, and the bottom end is used to act on the pressure head. After the memory spring shrinks due to heat, it is used to provide force for the pressure head to approach the push-type nozzle.

[0009] Optionally, a cap is further included, wherein the cap is arranged at the bottle mouth of the high-pressure nitrogen bottle, the push-type nozzle is located inside the cap, and the cap has a through hole, and the through hole is used for passing the pressure head.

[0010] Optionally, a sealing plate is further included, which is slidably arranged on the inner wall of the cabinet, the side wall of the cabinet has a vent, and the sealing plate is used to seal the vent after sliding, the bottom end of the memory spring is arranged on the sealing plate, and the pressure head is arranged on the sealing plate.

[0011] Optionally, it also includes a dust cover and a dust cap, the dust cover is arranged on the inner wall of the cabinet, the mounting rail is located in the dust cover, the dust cover has a plurality of inspection openings, after the connecting rod is unfolded, the plurality of terminals correspond to the positions of the plurality of inspection openings respectively, and the dust cap is slidably arranged on the dust cover to seal the inspection openings.

[0012] Optionally, the dust cover is provided with a strip-shaped through slot along the length direction for passing a circuit connected to the terminal.

[0013] Optionally, a wiring post is further included, which is arranged on the bottom wall of the cabinet and has a plurality of wiring channels for passing the lines connected to the terminals.

[0014] Optionally, it also includes routing rollers, which are rotatably arranged in the routing channel. The routing rollers are arranged in pairs, and each routing channel has at least one pair of routing rollers.

[0015] Optionally, the surface of the routing roller has a sponge layer, and the sponge layer is used to seal and wrap the line connected to the terminal.

[0016] Optionally, a flexible packaging tube is also included, and two ends of the flexible packaging tube are detachably connected to the bottom wall of the dust cover and the wiring column respectively.

[0017] The working principle and beneficial effects of the present invention are: During installation, the lever is moved. Since multiple connecting rods are hinged end to end in sequence, and the end of the lever is hinged to the end of the first connecting rod, the swing of the lever drives the first connecting rod to move, so that multiple connecting rods are unfolded at the same time. As the connecting rods unfold, the sliding part hinged to the middle of the connecting rod begins to slide on the installation rail, and the spacing between the originally closely arranged sliding parts gradually increases. At this time, the terminal can be easily installed on the corresponding sliding part, and there is ample space for hand operation, which greatly improves the accuracy and speed of installation.

[0018] After installation, in order to meet the requirement of clear terminal grouping, operate the lever again and push it in the opposite direction to gradually retract the connecting rod. During the retraction of the connecting rod, the sliding part drives the terminals closer to each other, and finally the terminals are arranged closely and regularly distributed inside the cabinet, giving people a clear and obvious grouping mark.

[0019] During subsequent maintenance, first determine the group information of the terminal block, then use the distance adjustment mechanism to repeat the installation operation to expand the connecting rod. The terminal spacing becomes larger, making it easier for maintenance personnel to use tools. Hand movements are no longer restricted, and they can accurately and quickly check whether the terminal connection is loose, whether the line is aging, and other problems, and quickly complete the maintenance task.

[0020] In summary, in the installation phase, this solution can easily expand the distance between the sliding parts through the distance adjustment mechanism, allowing workers to install terminals in a spacious operating space, reducing installation time, and significantly improving installation efficiency compared to traditional distribution cabinets. After installation, the terminals can be arranged closely to meet the requirements of clear terminal row grouping. During maintenance, the terminal spacing can also be quickly adjusted to facilitate maintenance personnel to quickly check the lines and terminals, reduce equipment failure downtime, and ensure the continuity of power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0022] Figure 1 The figure is a schematic diagram of the appearance of a high and low voltage power distribution cabinet that is easy to install; Figure 2 This is a schematic diagram of the internal structure of a high and low voltage power distribution cabinet that is easy to install; Figure 3 A schematic diagram of the internal structure of a high and low voltage power distribution cabinet that is easy to install from another angle; Figure 4 It is a schematic diagram of the structure of the dust cover; Figure 5 It is the structural diagram of the terminal block; Figure 6 It is a structural schematic diagram of the distance adjustment mechanism; Figure 7 for Figure 6Enlarged view of point B in the middle; Figure 8 for Figure 2 Enlarged view of point A in the middle; Fig. 9 This is a schematic diagram of the structure of the wiring column.

[0023] In the figure: 1. cabinet, 2. mounting rail, 3. terminal, 4. distance adjustment mechanism, 401. lever, 402. connecting rod, 403. sliding part, 5. high-pressure nitrogen cylinder, 6. push-type nozzle, 7. pressure head, 8. memory spring, 9. cap, 10. through hole, 11. sealing plate, 12. vent, 13. dust cover, 14. dust cover, 15. inspection port, 16. wiring column, 17. wiring channel, 18. wiring roller, 19. flexible wrapping tube. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0025] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0026] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] Reference Figure 1 to Figure 9 , which is the first embodiment of the present invention, proposes a high and low voltage power distribution cabinet that is easy to install, including a cabinet body 1, a mounting rail 2, a terminal 3 and a spacing mechanism 4, wherein the mounting rail 2 is arranged in the cabinet body 1, The distance adjustment mechanism 4 includes a lever 401, multiple connecting rods 402 and multiple sliding parts 403. The middle part of the lever 401 is hinged on the mounting guide rail 2. The multiple connecting rods 402 are hinged in sequence from head to tail. The end of the lever 401 is hinged to the end of the first connecting rod 402. After the lever 401 swings, it is used to expand or retract the multiple connecting rods 402. The sliding part 403 is slidably arranged on the mounting guide rail 2. The sliding part 403 is hinged to the middle part of the connecting rod 402. There are multiple terminals 3, which are respectively arranged on the multiple sliding parts 403.

[0029] In this embodiment, during installation, the lever 401 is moved. Since the multiple connecting rods 402 are hinged end to end in sequence, the end of the lever 401 is hinged to the end of the first connecting rod 402. The swing of the lever 401 drives the first connecting rod 402 to move, so that the multiple connecting rods 402 are unfolded at the same time. As the connecting rod 402 unfolds, the sliding part 403 hinged to the middle part of the connecting rod 402 begins to slide on the installation rail 2, and the spacing between the sliding parts 403 that were originally closely arranged gradually increases. At this time, the terminal 3 can be easily installed on the corresponding sliding part 403, and there is ample space for hand operation, which greatly improves the accuracy and speed of installation.

[0030] After installation, in order to meet the requirement of clear grouping of the terminals 3, the lever 401 is operated again, and the connecting rod 402 is gradually retracted by reversing. During the retraction of the connecting rod 402, the sliding part 403 drives the terminals 3 to approach each other, and finally the terminals 3 are closely arranged and regularly distributed inside the cabinet 1, giving a clear and obvious grouping mark.

[0031] During subsequent maintenance, first determine the group information of the terminal 3 row, then use the distance adjustment mechanism 4 to repeat the installation operation, expand the connecting rod 402, and increase the distance between terminals 3, making it easier for maintenance personnel to use tools. Hand movements are no longer restricted, and they can accurately and quickly check whether the terminal 3 connection is loose or the line is aging, and complete the maintenance task quickly.

[0032] In summary, in the installation phase, the spacing of the sliding part 403 can be easily expanded through the spacing adjustment mechanism 4, allowing workers to install the terminal 3 in a spacious operating space, reducing the installation time, and significantly improving the installation efficiency compared to the traditional distribution cabinet. After the installation is completed, the terminals 3 can be arranged closely to meet the requirements of clear grouping of the terminal 3 rows. During maintenance, the spacing of the terminals 3 can also be quickly adjusted to facilitate maintenance personnel to quickly check the line and the terminal 3, reduce the downtime of equipment failures, and ensure the continuity of power supply.

[0033] Furthermore, it also includes a high-pressure nitrogen bottle 5, a push-type nozzle 6, a pressure head 7 and a memory spring 8. The high-pressure nitrogen bottle 5 is arranged in the cabinet 1, the push-type nozzle 6 is arranged at the bottle mouth of the high-pressure nitrogen bottle 5, and the pressure head 7 is slidably arranged relative to the push-type nozzle 6. The top end of the memory spring 8 acts on the inner wall of the cabinet 1, and the bottom end is used to act on the pressure head 7. After the memory spring 8 shrinks due to heat, it is used to provide a force for the pressure head 7 to approach the push-type nozzle 6.

[0034] In this embodiment, the high-pressure nitrogen bottle 5 is placed inside the cabinet 1 to ensure that it is stable and will not shift due to the shaking of the cabinet 1. A push-type nozzle 6 is used at the bottle mouth. The pressure head 7 and the push-type nozzle 6 are arranged to slide relative to each other. If an open flame accidentally appears in the cabinet 1, the temperature rises sharply. When the temperature reaches the transition temperature of the memory spring 8 material, the memory spring 8 shrinks rapidly, exerts a force on the pressure head 7, and the pressure head 7 slides quickly toward the push-type nozzle 6, and the push-type nozzle 6 is instantly started. At this time, the high-pressure nitrogen stored in the high-pressure nitrogen bottle 5 is rapidly released into the internal space of the cabinet 1 through the nozzle in a jet shape under the action of pressure, and the nitrogen quickly fills the cabinet 1, displacing oxygen, causing the oxygen concentration inside the cabinet 1 to drop sharply, effectively suppressing the burning of the flame and preventing the fire from spreading further.

[0035] Relying on the temperature sensitivity of the memory spring 8, the fire extinguishing device can be automatically activated at the first time in the early stage of the fire, greatly shortening the fire extinguishing response time, timely curbing the development of the fire, and reducing the losses caused by the fire. High-pressure nitrogen can cover a large area of ​​the cabinet 1, quickly reduce the oxygen concentration, and effectively block the continuous burning of the flame. Compared with ordinary dry powder fire extinguishers, nitrogen fire extinguishing will not cause secondary pollution, and no complicated cleaning is required after the fire is extinguished, ensuring that the distribution cabinet can quickly resume normal operation later.

[0036] Furthermore, it also includes a cap 9, which is arranged at the bottle mouth of the high-pressure nitrogen bottle 5, and the push-type nozzle 6 is located in the cap 9. The cap 9 has a through hole 10, and the through hole 10 is used for passing the pressure head 7.

[0037] In this embodiment, the cap 9 is installed at the mouth of the high-pressure nitrogen bottle 5, and the cap 9 and the mouth of the bottle are screwed or snapped together to wrap the mouth of the bottle. The push-type spray head 6 is located inside the cap 9. The through hole 10 designed on the cap 9 ensures that the pressure head 7 can enter smoothly, while avoiding other unexpected situations from accidentally touching the push-type spray head 6, avoiding accidental spraying of nitrogen, affecting the normal operation of the distribution cabinet or causing unnecessary nitrogen waste.

[0038] Furthermore, it also includes a sealing plate 11, which is slidably arranged on the inner wall of the cabinet 1, and the side wall of the cabinet 1 has a vent 12. The sealing plate 11 is used to seal the vent 12 after sliding, the bottom end of the memory spring 8 is arranged on the sealing plate 11, and the pressure head 7 is arranged on the sealing plate 11.

[0039] In this embodiment, the sealing plate 11 is installed on the inner wall of the cabinet 1 along the pre-designed slideway of the cabinet 1 to ensure smooth sliding. The vent 12 is opened at a suitable position on the side wall of the cabinet 1 to ensure that the heat generated by the operation of the electrical components inside the cabinet 1 can be dissipated in time to maintain a suitable temperature environment inside the cabinet 1.

[0040] When a sudden electrical fault in the cabinet 1 causes a fire, as the temperature reaches the transition temperature of the memory spring 8, the memory spring 8 begins to contract. Since the bottom end of the memory spring 8 is fixed on the sealing plate 11 and the pressure head 7 is also arranged on the sealing plate 11, when the memory spring 8 contracts, it drives the sealing plate 11 to slide rapidly along the slideway of the cabinet 1 toward the vent 12. At the same time, the pressure head 7 on the sealing plate 11 also moves synchronously and approaches the push-type spray head 6.

[0041] In a very short time, the sealing plate 11 quickly blocks the vent 12, cutting off the circulation channel between the cabinet 1 and the outside air. On the one hand, it effectively prevents nitrogen from leaking out of the vent 12, ensuring that the sprayed nitrogen can fully accumulate inside the cabinet 1 and reduce the oxygen concentration to the greatest extent; on the other hand, it prevents external oxygen from entering the cabinet 1 to avoid providing combustion conditions for flame combustion. Then, the pressure head 7 touches the push-type nozzle 6 under the drive of the sealing plate 11, and the nitrogen in the high-pressure nitrogen bottle 5 is sprayed out. In a sealed and low-oxygen environment, the fire is quickly and effectively contained.

[0042] Furthermore, it also includes a dust cover 13 and a dust cover 14, the dust cover 13 is arranged on the inner wall of the cabinet 1, the mounting rail 2 is located in the dust cover 13, and the dust cover 13 has a plurality of inspection openings 15. After the connecting rod 402 is unfolded, the positions of the plurality of terminals 3 and the plurality of inspection openings 15 correspond respectively, and the dust cover 14 is slidably arranged on the dust cover 13 to seal the inspection openings 15.

[0043] In this embodiment, the dust cover 13 is installed on the inner wall of the cabinet 1. The mounting rail 2 and the distance adjustment mechanism 4, the terminal 3 and other components arranged thereon are covered inside the dust cover 13. A plurality of inspection ports 15 are designed on the dust cover 13 according to the layout and maintenance requirements of the terminal 3. The dust cover 14 is slidably installed on the dust cover 13. In the initial state, the dust cover 14 blocks the inspection port 15 to ensure the dustproof effect. The dust cover 13 provides a reliable dustproof barrier for the internal electrical components, effectively preventing dust from adhering to the surface of the terminal 3, and preventing electrical faults caused by excessive dust accumulation, such as short circuits, poor contact and other problems.

[0044] When the power distribution cabinet needs to be inspected and maintained, the lever 401 is first operated to expand the multiple connecting rods 402. As the connecting rods 402 extend, the terminals 3 slide until the multiple terminals 3 overlap with the corresponding inspection openings 15 on the dust cover 13. At this time, only the corresponding dust cover 14 needs to be slid to open the inspection opening 15, so that the target terminal 3 can be inspected and maintained conveniently.

[0045] Furthermore, the dust cover 13 is provided with a strip-shaped through slot along the length direction for passing the circuit connected to the terminal 3 .

[0046] In this embodiment, the dust cover 13 is provided with a strip-shaped through groove along the length direction to ensure that the line connecting the terminal 3 can pass through it smoothly, and the line will not be squeezed due to the through groove being too narrow, thereby affecting the normal transmission function of the line. The wires are connected to the cabinet 1 from the outside and connected to each terminal 3. These wires pass through the strip-shaped through groove on the dust cover 13 in an orderly manner and enter the internal terminal 3 area. Due to the strip-shaped design of the through groove, when the distance adjustment mechanism 4 is operated to expand or retract the connecting rod 402 and drive the terminal 3 to slide along the mounting rail 2, the line connecting the terminal 3 can slide flexibly and adaptively in the through groove as the terminal 3 moves, and the line will not be pulled, bent or even broken.

[0047] Furthermore, it also includes a wiring post 16 , which is arranged on the bottom wall of the cabinet 1 , and has a plurality of wiring channels 17 on the wiring post 16 for passing the lines connected to the terminals 3 .

[0048] In this embodiment, the wiring column 16 is fixed on the bottom wall of the cabinet 1, and its position is fixed by welding or high-strength bolt connection. The wiring column 16 is made of insulating materials with certain mechanical strength, such as hard plastic, to ensure the safety of electricity use and withstand the pulling of the line. Along the axial direction of the wiring column 16, multiple wiring channels 17 are designed and processed. The aperture of each wiring channel 17 is adapted according to the thickness of the line connecting the terminal 3. The wires are connected from the bottom of the distribution cabinet and connected to each terminal 3 accordingly. These wires are respectively inserted into each wiring channel 17 of the wiring column 16 in an orderly manner, and after passing through the top of the wiring column 16, they are connected to the terminal 3 through the strip groove of the dust cover 13. When the distance adjustment mechanism 4 is operated to expand or retract the connecting rod 402, and the terminal 3 slides back and forth, since the lines are regularly separated and each is in the corresponding wiring channel 17, even if the terminal 3 is frequently displaced, the line will not be twisted and entangled.

[0049] The wiring column 16 provides a well-organized combing path for the complex lines connecting the terminals 3, avoiding the chaos and interweaving of the lines, facilitating the rapid identification of the ownership of each line during subsequent maintenance and repair, and reducing the difficulty of operation and maintenance. The regular line layout makes the internal space of the distribution cabinet more tidy and beautiful, which is not only convenient for the staff to operate, but also reduces the hidden dangers of dust and debris accumulated due to the messy lines. It works together with dust-proof components such as the dust cover 13 to further optimize the operating environment of the distribution cabinet and extend the service life of the equipment.

[0050] Furthermore, it also includes routing rollers 18 , which are rotatably disposed in the routing channel 17 . The routing rollers 18 are disposed in pairs, and each routing channel 17 has at least one pair of routing rollers 18 .

[0051] In this embodiment, the line is connected from the bottom of the power distribution cabinet and passes through the wiring channel 17 of the wiring column 16. The line will be held by the paired wiring rollers 18. When the distance adjustment mechanism 4 is operated to slide the terminal 3 back and forth, the line moves in the wiring channel 17, and the wiring rollers 18 roll relatively. The line is restricted to a reasonable position to prevent it from deviating and colliding with the inner wall of the wiring channel 17, reducing the wear and scratching of the outer skin caused by friction, and allowing the line to move smoothly without jamming.

[0052] Furthermore, the surface of the routing roller 18 has a sponge layer, and the sponge layer is used to seal and wrap the line connected to the terminal 3.

[0053] In this embodiment, the sponge layer, relying on its own soft characteristics, adaptively wraps the line to form a sealed barrier, which not only effectively fills the tiny gaps that may exist between the line and the routing roller 18, and prevents dust, moisture and other impurities from invading these gaps, but also even if the line shakes slightly due to external force, the sponge layer can always maintain a sealed state to ensure the cleanliness and stability of the line.

[0054] Furthermore, it also includes a flexible tube 19 , and two ends of the flexible tube 19 are detachably connected to the bottom wall of the dust cover 13 and the wiring column 16 .

[0055] In this embodiment, a material with good flexibility, dustproof and good insulation performance is selected, such as a silicone material, to make the flexible tube 19. Both ends of the tube are designed with convenient detachable connection structures, such as snap-on forms, one end is correspondingly connected to the bottom wall of the dust cover 13, and the other end is connected to the top of the wiring column 16.

[0056] When the multiple terminals 3 are in a closely arranged state, the two ends of the flexible tube 19 are closely connected to cover the numerous wires connected to the terminals 3 to block external dust and bundle the multiple wires together to keep the interior of the cabinet 1 clean and tidy.

[0057] When the distance between the terminals 3 needs to be increased for maintenance, the connection between the top of the flexible tube 19 and the bottom wall of the dust cover 13 is released, and the flexible tube 19 naturally droops, and the circuit is released and can be flexibly dispersed with the movement of the terminals 3 to ensure that the movement of the terminals 3 is not hindered.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high and low voltage distribution cabinet that is easy to install, characterized in that: It comprises a cabinet (1), a mounting rail (2), a terminal (3) and a spacing adjustment mechanism (4), wherein the mounting rail (2) is arranged in the cabinet (1). The distance adjustment mechanism (4) comprises a lever (401), a plurality of connecting rods (402) and a plurality of sliding parts (403); the middle part of the lever (401) is hinged on the mounting rail (2); the plurality of connecting rods (402) are hinged in sequence head to tail; the end of the lever (401) is hinged to the end of the first connecting rod (402); after the lever (401) swings, it is used to expand or retract the plurality of connecting rods (402); the sliding part (403) is slidably arranged on the mounting rail (2); the sliding part (403) is hinged to the middle part of the connecting rod (402); and the plurality of terminals (3) are respectively arranged on the plurality of sliding parts (403).

2. The high and low voltage distribution cabinet that is easy to install according to claim 1 is characterized in that: The cabinet (1) further comprises a high-pressure nitrogen bottle (5), a push-type spray head (6), a pressure head (7) and a memory spring (8); the high-pressure nitrogen bottle (5) is arranged in the cabinet (1); the push-type spray head (6) is arranged at the bottle mouth of the high-pressure nitrogen bottle (5); the pressure head (7) is slidably arranged relative to the push-type spray head (6); the top end of the memory spring (8) acts on the inner wall of the cabinet (1); the bottom end is used to act on the pressure head (7); and the memory spring (8) is used to provide a force for the pressure head (7) to approach the push-type spray head (6) after shrinking due to heat.

3. The high and low voltage distribution cabinet that is easy to install according to claim 2 is characterized in that: It also includes a cap (9), the cap (9) being arranged at the mouth of the high-pressure nitrogen bottle (5), the press-type spray head (6) being located inside the cap (9), and the cap (9) having a through hole (10), the through hole (10) being used for the pressure head (7) to pass through.

4. The high and low voltage distribution cabinet that is easy to install according to claim 2 is characterized in that: It also comprises a sealing plate (11), the sealing plate (11) being slidably arranged on the inner wall of the cabinet (1), the side wall of the cabinet (1) having a vent (12), the sealing plate (11) being used to block the vent (12) after sliding, the bottom end of the memory spring (8) being arranged on the sealing plate (11), and the pressure head (7) being arranged on the sealing plate (11).

5. The high and low voltage distribution cabinet that is easy to install according to claim 1 is characterized in that: It also includes a dust cover (13) and a dust cover (14), wherein the dust cover (13) is arranged on the inner wall of the cabinet (1), the mounting rail (2) is located in the dust cover (13), the dust cover (13) has a plurality of inspection openings (15), and after the connecting rod (402) is unfolded, the positions of the plurality of terminals (3) and the plurality of inspection openings (15) respectively correspond, and the dust cover (14) is slidably arranged on the dust cover (13) to block the inspection openings (15).

6. The high and low voltage distribution cabinet that is easy to install according to claim 5 is characterized in that: The dust cover (13) is provided with a strip-shaped through slot along the length direction, for passing a circuit connected to the terminal (3).

7. The high and low voltage distribution cabinet that is easy to install according to claim 6 is characterized in that: It also comprises a wiring post (16), wherein the wiring post (16) is arranged on the bottom wall of the cabinet (1), and the wiring post (16) has a plurality of wiring channels (17) for passing the lines connected to the terminals (3).

8. The high and low voltage distribution cabinet that is easy to install according to claim 7 is characterized in that: It also includes a routing roller (18), the routing roller (18) being rotatably disposed in the routing channel (17), the routing rollers (18) being disposed in pairs, and each routing channel (17) having at least one pair of routing rollers (18).

9. The high and low voltage distribution cabinet that is easy to install according to claim 8, characterized in that: The surface of the routing roller (18) has a sponge layer, and the sponge layer is used to seal and wrap the line connected to the terminal (3).

10. The high and low voltage distribution cabinet that is easy to install according to claim 7, characterized in that: It also comprises a flexible packaging tube (19), the two ends of which are detachably connected to the bottom wall of the dust cover (13) and the wiring column (16).

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