Low-voltage JP cabinet with protection structure

Abstract

The application discloses a low-voltage JP cabinet with a protection structure and relates to the technical field of low-voltage JP cabinets.The low-voltage JP cabinet comprises a cabinet body, a cabinet door arranged at the front side of the cabinet body, a plurality of heat dissipation holes one arranged at the left and right sides of the cabinet body, a controller fixedly connected to the front side of the cabinet door, a supporting frame fixedly connected to the inner side of the cabinet body, an installation plate fixedly connected to the upper side of the supporting frame and provided with electronic devices, a protection unit arranged at the inner side of the cabinet body and in front of the installation plate, side blocks rotatably connected to the left and right inner walls of the cabinet body, and rotating rods rotatably connected to the outer sides of the side blocks on the left and right sides.The low-voltage JP cabinet with the protection structure is provided with the cabinet body, the installation plate, the rotating rods, the blocking plates, the top blocks, the control plates, the push plates and the electric push rods, so that the blocking plates on the left and right sides can be controlled to block and protect the electronic devices on the installation plate when the low-voltage JP cabinet is used, and the internal electrical devices can be prevented from being stolen by lawbreakers.

Description

Technical Field

[0001] The present invention relates to the technical field of low-voltage JP cabinets, in particular to a low-voltage JP cabinet with a protective structure. Background Art

[0002] Low-voltage JP cabinet (low-voltage integrated distribution box) is a comprehensive distribution equipment used for low-voltage power distribution, control, protection and metering in power systems. It is widely used in industrial and mining enterprises, residential communities, rural power grids and other places.

[0003] After searching, the Chinese patent with application number "202321691840.8" is specifically a low-voltage integrated power distribution JP cabinet with protective function, including a cabinet body, the outer wall of the cabinet body is penetrated by a ventilation hole, the outer wall of the cabinet body is fixedly connected with an inclined baffle, the inner wall of the cabinet body is fixedly connected with a fixed column, the end of the fixed column away from the cabinet body is fixedly connected with a limit plate, and the outer wall of the fixed column is slidably connected with a baffle.

[0004] In the above patent, electronic devices are installed on the inner side of the low-voltage JP cabinet. After the electronic devices are installed, the staff will close the cabinet door to prevent outsiders from touching the electronic devices and causing accidents. Since the low-voltage JP cabinet is usually installed outdoors and exposed to the public environment, it is easy to become a target of criminals. Criminals use tools to forcibly pry open or smash the cabinet door to steal the internal copper materials, cables or other valuable devices. Vandals deliberately tamper with the internal wiring or settings, causing power system failures, affecting the normal power supply to surrounding users, causing equipment damage that can easily affect the normal use of supporting equipment and easily cause safety accidents. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a low-voltage JP cabinet with a protective structure, which solves the problem that electronic devices in the cabinet are easily damaged and stolen by lawless elements.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A low-voltage JP cabinet with a protective structure includes a cabinet body, a cabinet door is provided on the front side of the cabinet body, and a plurality of heat dissipation holes are opened on the left and right sides of the cabinet body. A controller is fixedly connected to the front side of the cabinet door, a support frame is fixedly connected to the inner side of the cabinet body, and a mounting plate with electronic components is fixedly connected to the upper side of the support frame. A protective unit is provided on the inner side of the cabinet body and in front of the mounting plate. The protective unit includes side blocks, which are rotatably connected to the left and right inner walls of the cabinet body, and the outer sides of the side blocks on the left and right sides are rotatably connected to rotating rods. Blocking components are provided on the outer sides of the rotating rods on the left and right sides, and the blocking components are used to block the electronic components on the mounting plate. A stabilizing component is provided on the left side of the cabinet body, and the stabilizing component limits the cabinet door.

[0008] Preferably, the blocking assembly includes a blocking plate, which is fixedly connected to the outer sides of the left and right rotating rods, and a plurality of heat dissipation holes 2 are opened on the outer sides of the blocking plate. The upper ends of the two rotating rods pass through the upper side of the cabinet and are fixedly connected to a top block. The upper sides of the two top blocks are rotatably connected to a control panel, and the outer side of the rear end of the control panel is rotatably connected to a rotating block 1, and the rear side of the rotating block 1 is fixedly connected to a push plate, and the upper side of the cabinet is fixedly connected to a guide plate 1 and a stabilizing block, and the outer side of the guide plate 1 is slidably connected to a guide block 1, and the guide block 1 is fixedly connected to the push plate, and an electric push rod is fixedly connected between the stabilizing block and the push plate.

[0009] The cam is fixedly connected to the front of the L-shaped plate, and the front side of the L-shaped plate is fixedly connected to the rotating block 2, the outer side of the rotating block 2 is rotatably connected to the inclined plate, the outer side of the front end of the inclined plate is rotatably connected to the rotating block 3, and the front side of the rotating block 3 is fixedly connected to the movable plate, and the left side of the cabinet is fixedly connected to two fixed blocks, the outer side of the fixed block is provided with a sliding groove 1, the inner side of the sliding groove 1 is slidably connected to the slider 1, the slider 1 is fixedly connected to the movable plate, the front side of the slider 1 is fixedly connected to the movable block, the outer side of the movable block is provided with a sliding groove 2, the inner side of the sliding groove 2 is slidably connected to the slider 2, and the right side of the slider 2 is fixedly connected to the pressure plate.

[0010] Preferably, a U-shaped block is fixedly connected to the upper side of the slider 2, a sliding rod is fixedly connected to the upper side of the U-shaped block, a limiting plate is fixedly connected to the left side of the cabinet, an oblique groove is provided on the outer side of the limiting plate, and the sliding rod is slidably connected to the oblique groove.

[0011] Preferably, an installation assembly is provided on the outer side of the blocking plate, and the installation assembly includes a lifting block, the blocking plate is arranged on the upper and lower sides of the blocking plate, the outer side of the lifting block is fixedly connected to a connecting rod, the upper end of the connecting rod is fixedly connected to a contact ball, the lifting block is slidably connected to the blocking plate, the upper and lower sides of the blocking plate are fixedly connected to a guide plate 2, the outer side of the guide plate 2 is slidably connected to a guide block 2, the outer side of the guide block 2 is fixedly connected to a connecting block 1, the outer side of the connecting block 1 is rotatably connected to a support plate, the outer side of the lifting block is rotatably connected to a connecting block 2, the connecting block 2 is rotatably connected to the support plate, and the rear side of the guide block 2 is fixedly connected to the connecting plate.

[0012] Preferably, an air box 1 is fixedly connected to the upper side of the cabinet, a piston plate 1 is provided on the inner side of the air box 1, a control rod is fixedly connected between the piston plate 1 and the push plate, an air box 2 is fixedly connected to the rear side of the blocking plate, a delivery hose is fixedly connected between the air box 2 and the air box 1, a piston plate 2 is provided on the inner side of the air box 2, a spring is fixedly connected between the outer side of the piston plate 2 and the inner wall of the air box 2, and a rear plate is fixedly connected between the piston plate 2 and the connecting plate.

[0013] Preferably, a top cover is fixedly connected to the upper side of the cabinet body, and a side protection plate is fixedly connected to the left side of the cabinet body. Beneficial effects

[0014] The present invention provides a low-voltage JP cabinet with a protective structure. Compared with the prior art, it has the following advantages:

[0015] (1) The low-voltage JP cabinet with a protective structure is provided with a cabinet body, a mounting plate, a rotating rod, a blocking plate, a top block, a control panel, a push plate and an electric push rod. When the low-voltage JP cabinet is used, the blocking plates on both sides are controlled to block and protect the electronic components on the mounting plate, thereby preventing external criminals from stealing the internal electrical components.

[0016] (2) The low-voltage JP cabinet with a protective structure is provided with a push plate, an L-shaped plate, a moving block, a pressure plate, a sliding rod and an inclined groove. When the blocking plate blocks the electronic device, the two pressure plates press the cabinet door sideways to limit the position, making it difficult to open the cabinet door, thereby increasing the safety of the low-voltage JP cabinet when in use.

[0017] (3) The low-voltage JP cabinet with a protective structure is provided with a lifting block, a contact ball, a support plate, a guide plate 2, a guide block 2, an air box 1 and an air box 2. When blocking the electronic devices, the lifting blocks on the upper and lower sides are controlled to contact the inner wall of the cabinet and the support frame, which is convenient for reinforcing the blocking plate and preventing the blocking plate from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall three-dimensional structural diagram of the present invention;

[0019] Figure 2 It is an internal three-dimensional structural diagram of the present invention;

[0020] Figure 3 It is a partial three-dimensional structural diagram of the protection unit in the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 It is a partially cutaway perspective structural diagram of the protection unit in the present invention;

[0023] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0024] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0025] Figure 8 A three-dimensional structural diagram of the stabilizing component of the present invention;

[0026] Figure 9 for Figure 8 Enlarged view of point E in the middle.

[0027] In the figure: 1, cabinet body; 2, cabinet door; 3, heat dissipation hole 1; 4, controller; 5, top cover; 6, side protection plate; 7, protection unit; 8, support frame; 9, mounting plate; 71, side block; 72, rotating rod; 73, blocking assembly; 74, stabilizing assembly; 75, mounting assembly; 731, top block; 732, control board; 733, blocking plate; 734, heat dissipation hole 2; 735, rotating block 1; 736, push plate; 737, electric push rod; 738, guide plate 1; 739, guide block 1; 7310, stabilizing block; 741, L-shaped plate; 742, rotating block 2; 743, inclined plate; 744, moving plate; 745, fixed block; 746, slide groove 1; 747, 748. Moving block; 749. Slideway 2; 7410. Slider 2; 7411. Pressure plate; 7412. U-shaped block; 7413. Slide rod; 7414. Limit plate; 7415. Inclined groove; 7416. Rotating block 3; 751. Lifting block; 752. Connecting rod; 753. Contact ball; 754. Guide plate 2; 755. Guide block 2; 756. Connecting block 1; 757. Support plate; 758. Connecting block 2; 759. Connecting plate; 7510. Air box 1; 7511. Piston plate 1; 7512. Control rod; 7513. Delivery hose; 7514. Air box 2; 7515. Spring; 7516. Piston plate 2; 7517. Back plate. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] The present invention provides the following technical solutions: Example 1:

[0030] See also Figure 1-Figure 4 、 Figure 8 、 Figure 9A low-voltage JP cabinet with a protective structure includes a cabinet body 1, a cabinet door 2 is provided on the front side of the cabinet body 1, and a plurality of heat dissipation holes 3 are opened on the left and right sides of the cabinet body 1. A controller 4 is fixedly connected to the front side of the cabinet door 2, and a support frame 8 is fixedly connected to the inner side of the cabinet body 1. The upper side of the support frame 8 is fixedly connected to a mounting plate 9 on which electronic components are installed. A protective unit 7 is provided on the inner side of the cabinet body 1 and in front of the mounting plate 9. The protective unit 7 includes side blocks 71, which are rotatably connected to the left and right inner walls of the cabinet body 1. The outer sides of the left and right side blocks 71 are rotatably connected to rotating rods 72, and the outer sides of the left and right rotating rods 72 are provided with A blocking component 73 is provided, which is used to block the electronic devices on the mounting plate 9. A stabilizing component 74 is provided on the left side of the cabinet 1, which limits the cabinet door 2. A top cover 5 is fixedly connected to the upper side of the cabinet 1, and a side protection plate 6 is fixedly connected to the left side of the cabinet 1. The side protection plate 6 is an L-shaped structure. The top cover 5 is convenient for protecting the upper side of the cabinet 1. When using a low-voltage JP cabinet, the heat in the cabinet 1 is conveniently dissipated through the heat dissipation hole 3. The controller 4 provided therein controls the extension and retraction of the electric push rod 737, so that when the cabinet door 2 is closed, the protection unit 7 is controlled to protect the electronic devices.

[0031] When the lock is unlocked, the lock is unlocked, and the lock is unlocked, and the lock is unlocked, and the lock is unlocked. When the lock is unlocked, the lock is unlocked, and the lock is unlocked, the lock is unlocked. The lock mechanism 732 is actuated by the pulley 732, and the lock mechanism 733 is actuated by the pulley 733. When the lock mechanism 733 is unlocked, the lock mechanism 733 is unlocked, and the lock mechanism 733 is unlocked.

[0032] The stabilizing assembly 74 includes an L-shaped plate 741, which is fixedly connected to the rear side of the push plate 736. The front side of the L-shaped plate 741 is fixedly connected to a rotating block 2 742. The outer side of the rotating block 2 742 is rotatably connected to an inclined plate 743. The outer side of the front end of the inclined plate 743 is rotatably connected to a rotating block 3 7416. The front side of the rotating block 3 7416 is fixedly connected to a moving plate 744. The left side of the cabinet 1 is fixedly connected to two fixed blocks 745. The outer side of the fixed block 745 is provided with a slide groove 1 746. The slide groove 1 746 is provided on the outer side of the fixed block 745. 46 is slidably connected to a slider 1 747, which is fixedly connected to the movable plate 744. A movable block 748 is fixedly connected to the front side of the slider 1 747. A sliding groove 2 749 is provided on the outside of the movable block 748. A slider 2 7410 is slidably connected to the inside of the sliding groove 2 749. A pressure plate 7411 is fixedly connected to the right side of the slider 2 7410. A U-shaped block 7412 is fixedly connected to the upper side of the slider 2 7410. A sliding rod 7413 is fixedly connected to the upper side of the U-shaped block 7412. The left side of the cabinet 1 is fixedly connected to the limit plate 7414, and the outer side of the limit plate 7414 is provided with an oblique groove 7415. The slide rod 7413 is slidably connected to the oblique groove 7415. When the blocking plate 733 blocks the electronic device, the push plate 736 drives the L-shaped plate 741 to move backward, the L-shaped plate 741 drives the oblique plate 743 to rotate, the oblique plate 743 drives the movable plate 744 to move right, the movable plate 744 drives the slider 747 to move, the slider 747 drives the pressure plate 7411 to move right, and the pressure plate 7411 moves to the left. As the cabinet door 2 approaches, when the slider 1 747 drives the moving block 748 to move, the moving block 748 drives the slide bar 7413 to move rightward, and under the limit of the inclined slot 7415, the slide bar 7413 drives the U-shaped block 7412 to move, the U-shaped block 7412 drives the slider 2 7410 to move, and the slider 2 7410 drives the pressure plate 7411 to move backward, making it easier for the pressure plate 7411 to limit the cabinet door 2, preventing criminals from prying the cabinet door 2 open and facilitating the protection of internal components.

[0033] Based on the first embodiment, Figure 5-Figure 7As shown, a mounting assembly 75 is provided on the outer side of the blocking plate 733, and the mounting assembly 75 includes a lifting block 751. The blocking plate 733 is provided on the upper and lower sides of the blocking plate 733. The outer side of the lifting block 751 is fixedly connected to a connecting rod 752, and the upper end of the connecting rod 752 is fixedly connected to a contact ball 753. The lifting block 751 is slidably connected to the blocking plate 733. The upper and lower sides of the blocking plate 733 are fixedly connected to a guide plate 2 754. The outer side of the guide plate 2 754 is slidably connected to a guide block 2 755. The outer side of the guide block 2 755 is fixedly connected to a connecting block 1 756. The outer side of the connecting block 1 756 is rotatably connected to a support Plate 757, the outer side of the lifting block 751 is rotatably connected to the connecting block 2 758, the connecting block 2 758 is rotatably connected to the support plate 757, the rear side of the guide block 2 755 is fixedly connected to the connecting plate 759, the upper side of the cabinet 1 is fixedly connected to the air box 1 7510, the inner side of the air box 1 7510 is provided with a piston plate 1 7511, a control rod 7512 is fixedly connected between the piston plate 1 7511 and the push plate 736, the rear side of the blocking plate 733 is fixedly connected to the air box 2 7514, the air box 2 7514 is fixedly connected to the air box 1 7510 with a delivery hose 7513, and the inner side of the air box 2 7514 is provided with Piston plate 2 7516, a spring 7515 is fixedly connected between the outer side of piston plate 2 7516 and the inner wall of gas box 2 7514, and a rear plate 7517 is fixedly connected between piston plate 2 7516 and connecting plate 759. When blocking the electronic device, push plate 736 drives control rod 7512 to move backward, and control rod 7512 drives piston plate 1 7511 to move backward, pushing out the gas in gas box 1 7510 and delivering the gas to gas box 2 7514 through delivery hose 7513 (because delivery hose 7513 is a soft tube, delivery hose 7513 will not hinder the rotation of blocking plate 733). The gas pushes the piston plate 2 7516 to move, the piston plate 2 7516 drives the rear plate 7517 to move, the rear plate 7517 drives the connecting plate 759 to move, the connecting plate 759 drives the guide block 2 755 to move, the guide block 2 755 drives the support plate 757 to rotate, the support plate 757 drives the lifting block 751 to move, the lifting block 751 drives the contact ball 753 on the connecting rod 752 to move (the upper contact ball 753 contacts the inner wall of the cabinet 1, and the lower contact ball 753 contacts the upper side of the support frame 8), so that the contact balls 753 on the upper and lower sides can reinforce the blocking plate 733 to prevent criminals from damaging the blocking plate 733.

[0034] Working principle: When in use, the electric push rod 737 is controlled to drive the push plate 736 to move backward. Under the action of the control plate 732, the top block 731 and the rotating rod 72, the rotating rod 72 is controlled to drive the blocking plate 733 to rotate. The blocking plates 733 on both sides block and protect the electronic components on the mounting plate 9. At the same time, the push plate 736 drives the L-shaped plate 741 to move backward. Under the action of the inclined plate 743 and the movable plate 744, the pressure plate 7411 is controlled to move right. The movable plate 744 drives the movable block 748 to move. The movable block 748 drives the slide bar 7413 on the U-shaped block 7412 to move. Under the action of the inclined slot 7415, it is convenient to control the slide bar 7413 to move backward, and the slide bar 7413 drives the pressure plate 7411 backward. The push plate 736 drives the piston plate 1 7511 on the control rod 7512 to move backward, pushes out the gas in the gas box 1 7510, and moves the piston plate 2 7516 in the gas box 2 7514 through the delivery hose 7513. Under the action of the rear plate 7517, the connection plate 759 is controlled to move, and the connection plate 759 drives the guide block 2 755 to move. Under the action of the support plate 757, the lifting blocks 751 on the upper and lower sides are controlled to move toward each other, and the lifting block 751 drives the contact ball 753 to move, which is convenient for reinforcing the blocking plate 733 and preventing the blocking plate 733 from being damaged by criminals.

[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A low-voltage JP cabinet with a protective structure, comprising a cabinet body (1), characterized in that: The cabinet (1) is provided with a cabinet door (2) on the front side, and a plurality of heat dissipation holes (3) are provided on the left and right sides of the cabinet (1). The front side of the cabinet door (2) is fixedly connected to a controller (4). The inner side of the cabinet (1) is fixedly connected to a support frame (8), and the upper side of the support frame (8) is fixedly connected to a mounting plate (9) on which electronic devices are mounted. A protective unit (7) is provided on the inner side of the cabinet (1) and in front of the mounting plate (9). The protective unit (7) includes a side block (71), and the side block (71) is rotatably connected to the left and right inner walls of the cabinet (1). The outer sides of the left and right side blocks (71) are rotatably connected to rotating rods (72). The outer sides of the left and right rotating rods (72) are provided with blocking components (73), and the blocking components (73) are used to block the electronic devices on the mounting plate (9). A stabilizing component (74) is provided on the left side of the cabinet (1), and the stabilizing component (74) limits the cabinet door (2). The blocking assembly (73) includes a blocking plate (733), which is fixedly connected to the outer sides of the left and right rotating rods (72). The outer sides of the blocking plate (733) are provided with a plurality of heat dissipation holes (734). The upper ends of the two rotating rods (72) pass through the upper side of the cabinet (1) and are fixedly connected to a top block (731). The upper sides of the two top blocks (731) are both rotatably connected to a control board (732). The outer side of the rear end of the control board (732) A rotating block (735) is rotatably connected, a push plate (736) is fixedly connected to the rear side of the rotating block (735), a guide plate (738) and a stabilizing block (7310) are fixedly connected to the upper side of the cabinet (1), a guide block (739) is slidably connected to the outer side of the guide plate (738), the guide block (739) is fixedly connected to the push plate (736), and an electric push rod (737) is fixedly connected between the stabilizing block (7310) and the push plate (736); The stabilizing component (74) includes an L-shaped plate (741), the L-shaped plate (741) is fixedly connected to the rear side of the push plate (736), the front side of the L-shaped plate (741) is fixedly connected to a second rotating block (742), the outer side of the second rotating block (742) is rotatably connected to an inclined plate (743), the outer side of the front end of the inclined plate (743) is rotatably connected to a third rotating block (7416), the front side of the third rotating block (7416) is fixedly connected to a moving plate (744), and the left side of the cabinet (1) is fixedly connected to two fixed blocks (745). The fixed block (745) is provided with a first slide groove (746) on the outside, a first slide block (747) is slidably connected to the inside of the first slide groove (746), the first slide block (747) is fixedly connected to the movable plate (744), the front side of the first slide block (747) is fixedly connected to the movable block (748), the second slide groove (749) is provided with a second slide block (7410) on the inside of the second slide groove (749), and the right side of the second slide block (7410) is fixedly connected to the pressure plate (7411); The upper side of the second slider (7410) is fixedly connected to a U-shaped block (7412), the upper side of the U-shaped block (7412) is fixedly connected to a slide rod (7413), the left side of the cabinet (1) is fixedly connected to a limit plate (7414), the outer side of the limit plate (7414) is provided with an oblique groove (7415), and the slide rod (7413) is slidably connected to the oblique groove (7415).

2. The low-voltage JP cabinet with a protective structure according to claim 1, characterized in that: The outer side of the blocking plate (733) is provided with a mounting assembly (75), and the mounting assembly (75) includes a lifting block (751). The blocking plate (733) is provided on the upper and lower sides of the blocking plate (733). The outer side of the lifting block (751) is fixedly connected to a connecting rod (752). The upper end of the connecting rod (752) is fixedly connected to a contact ball (753). The lifting block (751) is slidably connected to the blocking plate (733). The upper and lower sides of the blocking plate (733) are fixedly connected to Guide plate 2 (754), the outer side of the guide plate 2 (754) is slidably connected to guide block 2 (755), the outer side of the guide block 2 (755) is fixedly connected to connecting block 1 (756), the outer side of connecting block 1 (756) is rotatably connected to a support plate (757), the outer side of the lifting block (751) is rotatably connected to connecting block 2 (758), the connecting block 2 (758) is rotatably connected to the support plate (757), and the rear side of the guide block 2 (755) is fixedly connected to a connecting plate (759).

3. The low-voltage JP cabinet with a protective structure according to claim 2, characterized in that: The upper side of the cabinet (1) is fixedly connected to an air box 1 (7510), a piston plate 1 (7511) is provided on the inner side of the air box 1 (7510), a control rod (7512) is fixedly connected between the piston plate 1 (7511) and the push plate (736), the rear side of the blocking plate (733) is fixedly connected to an air box 2 (7514), a delivery hose (7513) is fixedly connected between the air box 2 (7514) and the air box 1 (7510), a piston plate 2 (7516) is provided on the inner side of the air box 2 (7514), a spring (7515) is fixedly connected between the outer side of the piston plate 2 (7516) and the inner wall of the air box 2 (7514), and a rear plate (7517) is fixedly connected between the piston plate 2 (7516) and the connecting plate (759).

4. The low-voltage JP cabinet with a protective structure according to claim 1, characterized in that: A top cover (5) is fixedly connected to the upper side of the cabinet (1), and a side protection plate (6) is fixedly connected to the left side of the cabinet (1).

Images