Special antirust box for electric control cabinet

Abstract

The utility model discloses a special rust-proof box for an electric control cabinet, which comprises a shell and granular gas-phase rust-proof master batches arranged in an inner cavity of the shell, a gas outlet is formed in one side of the shell, and the gas outlet is opened and closed through a first switch; the side, away from the air outlet, of the shell is matched with a guide rail in the electric control cabinet, and the side, away from the air outlet, of the shell is provided with a clamping block used for being matched with the guide rail in a clamped mode and further provided with an automatic reset safety pin. A second switch is arranged in the air outlet, and the safety pin and the second switch are connected through a linkage assembly; according to the utility model, one side of the shell is matched with the guide rail in the electric control cabinet, so that the antirust box can be conveniently arranged on the guide rail in the electric control cabinet; and when the anti-rust box is detached from the guide rail in the electric control cabinet, the safety pin capable of automatically resetting is matched with the linkage assembly to realize automatic closing of the second switch, so that closing of the air outlet is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of rust prevention, in particular to a special rust prevention box for an electric control cabinet. Background Art

[0002] Electric control cabinet is the abbreviation of electrical control cabinet. It is a device for centralized control and management of electrical equipment. It is usually composed of control panel, power supply, switch equipment, measuring instruments, protective electrical appliances, regulators, etc. They often contain a variety of metals. When exposed to moisture or corrosive gases, the exposed metal is very susceptible to corrosion. The properties of the metal change accordingly, and the performance of the corresponding electrical components is affected, which in turn affects the function of the entire electric control cabinet.

[0003] Currently, rust prevention mainly relies on anti-rust oil, but the electrical components in the electric control cabinet are not suitable for oil, and the electric control cabinet is not completely sealed, so it is easy to rust in a humid environment. The effect of using desiccant for moisture prevention is often not ideal.

[0004] The principle of vapor phase rust prevention is that vapor phase rust prevention materials (anti-rust film, anti-rust paper, anti-rust masterbatch) can volatilize anti-rust gas, which is easily adsorbed on the metal surface to form a gas protective layer. The corrosive substances such as oxygen and water originally adsorbed on the metal surface are repelled away, thus avoiding the occurrence of corrosion.

[0005] For example, a Chinese patent with the announcement number CN211845618U discloses a solid anti-rust box, including a box body, a box cover is arranged on the top of the box body, the box cover is a double-layer hollow rotatable structure that can be opened and closed, the box cover is provided with air holes that allow the anti-rust gas to pass through, and a gas phase corrosion inhibitor layer is arranged in the box body. The opening and closing is achieved by rotation to determine whether the anti-rust gas volatilizes.

[0006] However, the rust-proof box lacks fixing components and is not convenient to install in the electric control cabinet. When the rust-proof box is taken out of the electric control cabinet, the opening cannot be automatically closed. The user forgets to close the opening, causing the rust-proof gas in the rust-proof box to be released at will in non-use situations. Utility Model Content

[0007] The purpose of the utility model is to provide a special rust-proof box for an electric control cabinet to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A special anti-rust box for an electric control cabinet, comprising a shell and granular gas phase anti-rust masterbatch arranged in the inner cavity of the shell, an air outlet is opened on one side of the shell, and the air outlet is opened and closed by a first switch;

[0010] The side of the shell facing away from the air outlet is adapted to the guide rail in the electric control cabinet, and the shell on this side is provided with a clamping block for clamping with the guide rail, and the shell on this side is also provided with an automatic reset safety pin;

[0011] A second switch is arranged in the air outlet, and the safety pin and the second switch are connected via a linkage assembly.

[0012] Preferably, a plurality of baffles are arranged in parallel in the inner cavity of the shell.

[0013] Preferably, a gap is left between the baffle plate and the inner top wall and the inner bottom wall of the shell for the gas phase rust-proof masterbatch to flow.

[0014] Preferably, a feed inlet is provided on the side wall of the shell, and a feed cover is provided on the feed inlet.

[0015] Preferably, a fixed orifice plate and a sponge body are sequentially arranged in the air outlet from the inside to the outside.

[0016] Preferably, the second switch is a movable orifice plate rotatably connected to the inner side of the fixed orifice plate, and the movable orifice plate rotates relative to the fixed orifice plate so that the air holes therebetween are aligned or staggered.

[0017] Preferably, the linkage component is a pull rope, and both ends of the pull rope are respectively connected to the movable orifice plate and the safety pin.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] One side of the housing of the utility model is adapted to the guide rail in the electric control cabinet, and the housing on this side and the clamping block cooperate to facilitate the installation of the rust-proof box on the guide rail in the electric control cabinet;

[0020] A second switch is arranged in the air outlet. When the anti-rust box is installed on the guide rail in the electric control cabinet, the second switch is opened by the cooperation of the safety pin and the linkage assembly. When the anti-rust box is removed from the guide rail in the electric control cabinet, the automatically reset safety pin and the linkage assembly cooperate to automatically close the second switch, thereby closing the air outlet, thereby realizing automatic closure when not in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a cross-sectional view of the utility model.

[0023] The reference numerals in the figure are as follows:

[0024] 1. Shell; 11. Baffle; 2. Feed cover; 3. First switch; 4. Sponge; 5. Fixed orifice plate; 6. VCI masterbatch; 7. Clamping block; 8. Safety pin; 9. Movable orifice plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] There are guide rails inside the electric control cabinet, and the electrical components are neatly arranged and fixed on the guide rails.

[0028] A special anti-rust box for an electric control cabinet, comprising a housing 1, a feed cover 2, a first switch 3, a sponge 4, a fixed orifice plate 5, a vapor phase anti-rust masterbatch 6, a locking block 7, a safety pin 8 and a movable orifice plate 9;

[0029] The outer structure of the shell 1 is similar to that of a leakage switch and an air switch. The bottom of the shell 1 is adapted to the guide rail, and a snap-fit ​​block 7 is provided at the bottom of the shell 1. The bottom of the shell 1 and the snap-fit ​​block 7 cooperate to realize the detachable installation of the shell 1 on the guide rail. The installation and disassembly of the shell 1 from the guide rail are the same as those of the existing leakage switch and air switch and will not be repeated here.

[0030] A feed hole is provided at the top of the shell 1, and a feed cover 2 is threadedly connected to the feed hole. Granular vapor phase rust-proof masterbatch 6 is put into the shell 1 through the feed hole. The feed cover 2 closes the feed hole during use.

[0031] The top of the housing 1 is provided with an air outlet, and a first switch 3 is rotatably mounted on the upper end of the air outlet. The structure of the first switch 3 is similar to that of a toggle plate of a leakage switch or an air switch. Figure 1 The first switch 3 shown is in a state of opening the air outlet, and a soft sealing material is arranged on the outer side of the first switch 3 to improve the sealing when the first switch 3 is rotated to the right to close the upper end of the air outlet.

[0032] The gas phase anti-rust masterbatch 6 uses polyethylene as a carrier, and adds a gas phase corrosion inhibitor to form a particle structure with a diameter of about 3mm. Since the gap between polyethylene molecules is small, at the nanometer level, the resistance to the volatilization of the corrosion inhibitor is large, and the volatilization speed is also slow, so that it can maintain the volatilization state for a long time. It can continue to volatilize anti-rust gas for decades, which is close to the service life of most electric control cabinets. The gas phase anti-rust masterbatch 6 is placed in the inner cavity of the shell 1 to volatilize to form anti-rust gas. The anti-rust gas is easily adsorbed on the metal surface and forms a gas protection layer, which can protect the metal from corrosion.

[0033] The lower end of the air outlet is fixed with a fixed orifice plate 5 and a sponge 4 in sequence from the inside to the outside. The sponge 4 allows the anti-rust gas to be emitted outward, but does not allow the debris of the gas-phase anti-rust masterbatch 6 to be scattered out, and also prevents external foreign matter from entering the anti-rust box, prevents external dust from entering the anti-rust box, and avoids contaminating the gas-phase anti-rust masterbatch 6; the fixed orifice plate 5 is evenly provided with air holes, allowing the anti-rust gas to be emitted outward and preventing the gas-phase anti-rust masterbatch 6 from running out of the box.

[0034] Several baffles 11 are provided inside the shell 1, and the effect of the baffles 11 is similar to that of wave-breaking plates, which prevent the gas phase anti-rust masterbatch 6 from shaking greatly in the shell 1. At the same time, there is a gap between the top wall of the baffle 11 and the inner top wall of the shell 1, and between the bottom wall of the baffle 11 and the inner bottom wall of the shell 1, and this gap is much larger than the outer diameter of the gas phase anti-rust masterbatch 6.

[0035] The bottom of the shell 1 is slidably connected to a safety pin 8, and a spring is sleeved on the outside of the safety pin 8 (not shown in the attached figure) to achieve automatic reset under normal conditions. The second switch is a movable orifice plate 9, which is rotatably connected to the bottom of the fixed orifice plate 5. The air holes on the movable orifice plate 9 are used to emit anti-rust gas outward; the linkage component is a pull rope, and the two ends of the pull rope are respectively connected to the upper end of the safety pin 8 and the non-center of the movable orifice plate 9. A torsion spring is arranged between the movable orifice plate 9 and the shell 1, and the elastic force of the spring on the outside of the safety pin 8 is greater than the elastic force of the torsion spring of the movable orifice plate 9.

[0036] The linkage assembly adopts a drawstring to avoid collision with the vapor phase anti-rust masterbatch 6.

[0037] Working principle:

[0038] The housing 1 is clamped on the guide rail of the electric control cabinet. At this time, the guide rail relatively pushes the safety pin 8 to move upward and the spring is compressed to generate a reverse elastic force. Under the elastic force of the torsion spring, the movable orifice plate 9 rotates and resets, so that the air holes of the movable orifice plate 9 are aligned with the air holes of the fixed orifice plate 5. Then, the first switch 3 is manually turned left to Figure 1 In this state, the antirust gas in the shell 1 can be emitted outward to the electric control cabinet through the air holes of the movable orifice plate 9, the air holes of the fixed orifice plate 5 and the sponge body 4 in sequence.

[0039] During the process, when rust prevention is not needed, such as when repairing the electric control cabinet, the first switch 3 is turned to the right, the upper end of the air outlet is blocked, and the rust-proof gas will not be emitted outward. When the gas concentration inside the shell 1 reaches saturation, the rust-proof masterbatch no longer volatilizes gas, and the rust-proof component is preserved.

[0040] When the shell 1 is removed from the guide rail of the electric control cabinet, the reverse elastic force of the spring pushes the safety pin 8 to move downward and reset. In this process, the movable orifice plate 9 is driven to rotate by the pull rope. The rotation of the movable orifice plate 9 makes the air holes between it and the fixed orifice plate 5 staggered, thereby blocking the lower end of the air outlet, and the torsion spring generates a reverse elastic force, thereby preventing waste caused by forgetting to close the first switch 3 when not in use.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A special anti-rust box for an electric control cabinet, comprising a shell (1) and a granular gas phase anti-rust masterbatch (6) arranged in the inner cavity of the shell (1), a gas outlet is opened on one side of the shell (1), and the gas outlet is opened and closed by a first switch (3), characterized in that: The side of the shell (1) facing away from the air outlet is adapted to the guide rail in the electric control cabinet, and the shell (1) on this side is provided with a snap-fit ​​block (7) for snap-fitting with the guide rail, and the shell (1) on this side is also provided with an automatically reset safety pin (8); A second switch is arranged in the air outlet, and the safety pin (8) is connected to the second switch via a linkage assembly.

2. The special anti-rust box for electric control cabinet according to claim 1, characterized in that: A plurality of baffles (11) are arranged in parallel in the inner cavity of the shell (1).

3. The special anti-rust box for electric control cabinet according to claim 2, characterized in that: A gap is left between the baffle plate (11) and the inner top wall and inner bottom wall of the shell (1) for the gas phase rust-proof masterbatch (6) to flow.

4. The special anti-rust box for electric control cabinet according to claim 1, characterized in that: The side wall of the shell (1) is provided with a feed inlet, and the feed inlet is provided with a feed cover (2).

5. The special anti-rust box for electric control cabinet according to claim 1, characterized in that: The air outlet is provided with a fixed orifice plate (5) and a sponge body (4) in sequence from the inside to the outside.

6. The special rust-proof box for electric control cabinet according to claim 5, characterized in that: The second switch is a movable orifice plate (9) rotatably connected to the inner side of the fixed orifice plate (5); the movable orifice plate (9) rotates relative to the fixed orifice plate (5) so that the air holes between the two are aligned or staggered.

7. The special anti-rust box for electric control cabinet according to claim 6, characterized in that: The linkage component is a pull rope, and the two ends of the pull rope are respectively connected to the movable orifice plate (9) and the safety pin (8).

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