Explosion-proof observation window of high-voltage cabinet

Abstract

The utility model discloses a high voltage cabinet explosion-proof observation window, the high voltage cabinet explosion-proof observation window comprises a cabinet body, and a cabinet door and a housing which are arranged on the cabinet body, the cabinet door is provided with an observation port, two sides of the observation port are provided with grooves which are used for the housing to enter and are provided with gaps, the opposite surfaces of the gaps of the grooves are provided with clamping assemblies, and the clamping assemblies abut against the housing. The cover shell is internally provided with protective glass which is embedded into the observation opening, one end of the protective glass is provided with a pressure-bearing support, and the cover shell is provided with a gasket which is arranged on the outer wall of the protective glass in a sleeved mode. The clamping assembly is matched with the groove to form clamping force for clamping the cover shell, the installation efficiency is improved, when the protective glass is impacted by strong airflow, the gasket is used for buffering the protective glass, the protective glass is prevented from being broken, the gasket and the sealing strip are protected through the pressure bearing part and the cover shell, impact of high-temperature scorching particles is prevented, and the service life of the protective glass is prolonged. Therefore, the product has the advantages of protection function, quick installation and buffering effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to a switchgear cabinet technical field especially relates to a high pressure cabinet explosion -proof observation window. BACKGROUND

[0002] Switch cabinet especially high pressure switch cabinet as the important component of electric power system, it has long service life, high reliability, small volume etc. advantage. In order to guarantee that high pressure cabinet can be always normal operation, operation and maintenance personnel need to carry out the maintenance and overhaul work of switch cabinet at random, need to be often through the observation window on switch cabinet to check the running condition of high pressure switch equipment internal component, mechanism, meter etc. article, the role of observation window is to provide a window, makes staff observe internal component running condition and position without opening the door, can protect the observer personal safety to some extent.

[0003] The existing observation window installation structure is mostly installed in the window of the door of the cabinet by fixing and installing the protective glass through the buckle plate with screws. This installation method is weak at the window of the door of the cabinet, although the installation method is simple, but the installation efficiency is low, and the protective glass and the observation port are usually sealed by a sealing strip. When a fire explosion accident occurs, due to the strong airflow generated in the switch cabinet and a large number of high-temperature hot particles, the protective glass is impacted, the sealing strip is damaged, and leakage is caused. Therefore, the applicant has made beneficial design and found a method to solve the above problems. The technical scheme to be introduced below is generated in this background. SUMMARY

[0004] The utility model discloses a product with protection function, fast installation, has the buffer effect to overcome the deficiency of traditional high pressure switch cabinet design.

[0005] To solve the above problems, the utility model adopts the following technical scheme.

[0006] An explosion-proof observation window for a high-voltage cabinet includes a cabinet body, a cabinet door and a cover shell arranged on the cabinet body. The cabinet door is provided with an observation port, and recesses with notches are arranged on both sides of the observation port for the cover shell to enter. A clamping assembly is arranged on the opposite side of the recess notch and abuts against the cover shell. A protective glass is arranged in the cover shell and embedded in the observation port. A pressure-bearing bracket is arranged at one end of the protective glass. The cover shell is provided with a gasket and is sleeved on the outer wall of the protective glass. The gasket also abuts against the end face of the protective glass. An air bag cavity is arranged in the gasket. The pressure-bearing bracket is provided with a first spring and acts on the cover shell to make the gasket tightly fit the outer wall of the protective glass.

[0007] Preferably, the other end of the protective glass is provided with a pressure-bearing part, which abuts against the end face of the gasket.

[0008] Preferably, the cover is provided with a bearing pad groove, the bottom outer wall of the cover is provided with an extension, and the extension is inserted into the groove, and the bottom of the cover is provided with a sealing strip which abuts against the door, and the sealing strip protrudes from the end surface of the cover bottom.

[0009] Preferably, the pressure bearing support is provided with a plurality of blind holes for accommodating the first springs, and the pressure bearing support is lower than the end surface of the cover bottom.

[0010] Preferably, the door is provided with a support block which is located on the opposite side of the notch groove, and the two sides of the support block are provided with sliding holes.

[0011] Preferably, the clamping assembly comprises a pressing plate which is provided with a stop portion and is perpendicular to the pressing plate, the pressing plate is provided with at least two guide rods which are slidingly arranged in the sliding holes, the end surface of the guide rod is provided with a stop portion, the outer wall of the guide rod is provided with a second spring which abuts against the support block and the pressing plate respectively, the pressing plate abuts against the extension, and the stop portion abuts against the end surface of the extension.

[0012] Beneficial effects:

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] (1) According to the utility model, the clamping assembly is separated from the notch groove by a distance for inserting the guide groove of the cover, the force applied to the clamping assembly is loosened, the second spring releases the elastic force to the pressing plate, the pressing plate and the notch form a force for clamping the cover, and thus the quick connection and fixing of the cover and the door are completed, and the product has the advantage of quick installation.

[0015] (2) According to the utility model, the pressure bearing part and the cover block most of the high-temperature hot particles, prevent the gasket and the sealing strip from being damaged by the high-temperature hot particles, and the product has the advantage of protection function.

[0016] (3) According to the utility model, when the protective glass is impacted by strong airflow, the gas in the air bag cavity in the gasket is extruded to absorb and offset part of the energy, buffer is provided for the protective glass, the gas in the air bag cavity is extruded to expand the air bag cavity on both sides and abut against the protective glass and the side wall of the groove, the sealing property of the protective glass and the cover is further improved, the strong airflow is prevented from leaking to the outside of the cabinet, and the product has the advantage of buffer effect. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a high-voltage cabinet explosion-proof observation window structure Figure 1 ;

[0018] Figure 2The utility model discloses a high -voltage cabinet explosion -proof observation window's structure diagram Figure 2 ;

[0019] Figure 3 The utility model discloses a high -voltage cabinet explosion -proof observation window's side sectional structure diagram

[0020] Figure 4 The utility model discloses a high -voltage cabinet explosion -proof observation window's structure diagram Figure 3 ;

[0021] Figure 5 The utility model discloses a high -voltage cabinet explosion -proof observation window's structure diagram

[0022] Figure 6 The utility model discloses a high -voltage cabinet explosion -proof observation window's structure diagram

[0023] Figure 7 The utility model discloses a high -voltage cabinet explosion -proof observation window's structure diagram

[0024] The corresponding relationship between the various figure marks and the component names in the drawings is as follows:

[0025] Mark: 1, cabinet body;2, cabinet door;3, cover;4, clamping assembly;5, protective glass;6, gasket;21, observation port;22, recess;23, support block;24, sliding hole;31, sink groove;32, extension;33, sealing strip;41, compression plate;42, guide rod;43, second spring;411, retreat stop;421, blocking part;51, pressure bearing support;52, first spring;53, pressure bearing;54, blind hole;61, air bag cavity. DETAILED DESCRIPTION

[0026] The technical scheme of the utility model will be described below in conjunction with the embodiments, obviously, the described embodiments are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "upper", "lower", "left", "right" and the like is the orientation or position relation shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0028] In the embodiments of the utility model, "and / or" is merely a description of the association relationship of the associated objects, and indicates that three relationships can exist, for example, A and / or B can indicate that A exists alone, A and B exist simultaneously, and B exists alone.

[0029] Reference example Figures 1 to 7 A high-voltage cabinet explosion-proof observation window, including cabinet 1, and setting on cabinet 1 cabinet door 2, cover 3, cabinet door 2 is equipped with observation port 21, and the both sides of observation port 21 are equipped with the recess 22 of the cover 3 entrance with the gap, and the opposite side of recess 22 gap is equipped with clamping assembly 4, and is abutted cover 3, cover 3 is equipped with protective glass 5 in, and is embedded observation port 21, and one end of protective glass 5 is equipped with pressure bearing support 51, cover 3 is equipped with gasket 6, and is set on the outer wall of protective glass 5, and gasket 6 is also abutted the end surface of protective glass 5, and gasket 6 is equipped with air bag cavity 61 in, pressure bearing support 51 is equipped with first spring 52, and is acted on cover 3, for making gasket 6 tightly adhere to the outer wall of protective glass 5, and the elastic force is released to pressure bearing support 51 through multiple first springs 52, and protective glass 5 is applied to the pressure of gasket 6 downwards, and the gas in air bag cavity 61 is extruded, and then the both sides of air bag cavity 61 are expanded, and are tightly abutted protective glass 5 and the side wall of sink groove 31, improve the sealing property of protective glass 5 and cover 3,

[0030] It is worth mentioning that the other end of protective glass 5 is equipped with pressure bearing part 53, and pressure bearing part 53 is abutted the end surface of gasket 6, and most high-temperature hot particles are blocked by pressure bearing part 53, cover 3, to prevent gasket 6, sealing strip 33 from being damaged by high-temperature hot particles, when protective glass 5 is impacted by strong airflow, the gas in air bag cavity 61 in gasket 6 is extruded, absorbs and offsets part of energy, provides buffer for protective glass 5, and after the gas in air bag cavity 61 is extruded, the both sides of air bag cavity 61 are expanded, and are tightly abutted protective glass 5 and the side wall of sink groove 31, at this time, the sealing property of protective glass 5 and cover 3 is further improved;

[0031] It is worth mentioning that cover 3 is equipped with sink groove 31 of supporting gasket 6, the bottom outer wall of cover 3 is equipped with extension 32, and is inserted in recess 22, the bottom of cover 3 is equipped with sealing strip 33, and is abutted cabinet door 2, and sealing strip 33 protrudes from the end surface of the bottom of cover 3, extension 32 cooperates with recess 22 to prevent cover 3 from separating from recess 22, and the protruding sealing strip 33 makes extension 32 tightly adhere to the end surface of recess 22, so that the sealing effect is realized, and sealing strip 33 further increases the sealing property of cover 3 and cabinet door 2,

[0032] It is worth mentioning that the pressure support 51 is provided with a plurality of blind holes 54 accommodating the first spring 52, the pressure support 51 is lower than the end surface of the bottom of the cover 3, when the pressure support 51 is installed with the protective glass 5, the blind hole 54 prevents the first spring 52 from being separated, and accelerates the fixing speed of the pressure support 51 and the protective glass 5, the fixing mode is through the bolt, and the assembly speed is further accelerated in the interference fit mode;

[0033] It is worth mentioning that the cabinet door 2 is provided with a support block 23 located at the opposite side of the notch groove 22, and the support block 23 is provided with a sliding hole 24 on both sides, the support block 23 provides a supporting force for the second spring 43, and the sliding hole 24 provides a guiding effect for the pressing plate 41;

[0034] It is worth mentioning that the clamping assembly 4 includes a pressing plate 41, the pressing plate 41 is provided with a retreat stop portion 411 in a perpendicular relationship with the pressing plate 41, the pressing plate 41 is provided with at least two guide rods 42, the guide rod 42 is slidably arranged in the sliding hole 24, the end surface of the guide rod 42 is provided with a stop portion 421, the outer wall of the guide rod 42 is provided with a second spring 43, the second spring 43 abuts against the support block 23 and the pressing plate 41 respectively, so that the pressing plate 41 abuts against the extension portion 32, the retreat stop portion 411 abuts against the end surface of the extension portion 32, by pushing the pressing plate 41 to move away from the notch of the groove 22 by a distance for inserting the guide groove 22 of the cover 3, the second spring 43 gradually accumulates energy, the force applied to the pressing plate 41 is released, the second spring 43 releases the elastic force to the pressing plate 41, the pressing plate 41 quickly abuts against the extension portion 32, and the retreat stop portion 411 abuts against the end surface of the extension portion 32, so that the pressing plate 41 and the groove 22 form a force clamped on the extension portion 32, thereby completing the quick connection and fixing of the cover 3 and the cabinet door 2.

[0035] The above design scheme can realize the product with the advantages of protection function, quick installation and buffering effect.

[0036] The above content is further described in detail in combination with the specific embodiments, and cannot be determined that the specific embodiments of the utility model are limited to these descriptions, and for ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the protection range determined by the claims of the utility model.

Claims

1. An explosion-proof observation window for a high-voltage cabinet, comprising a cabinet body (1), a cabinet door (2) and a cover (3) arranged on the cabinet body (1), characterized in that: The cabinet door (2) is provided with an observation port (21), and grooves (22) with notches for the cover shell (3) to enter are provided on both sides of the observation port (21), and a clamping assembly (4) is provided on the opposite side of the notch of the groove (22) and abuts against the cover shell (3), and a protective glass (5) is provided in the cover shell (3) and is embedded in the observation port (21), and a pressure-bearing bracket (51) is provided at one end of the protective glass (5), and the cover shell (3) is provided with a gasket (6) and is sleeved on the outer wall of the protective glass (5), and the gasket (6) also abuts against the end face of the protective glass (5), and an airbag cavity (61) is provided in the gasket (6), and the pressure-bearing bracket (51) is provided with a first spring (52) and acts on the cover shell (3) to make the gasket (6) closely fit the outer wall of the protective glass (5).

2. The explosion-proof observation window for a high-voltage cabinet according to claim 1, characterized in that: The other end of the protective glass (5) is provided with a pressure-bearing portion (53), and the pressure-bearing portion (53) abuts against the end surface of the gasket (6).

3. The explosion-proof observation window for a high-voltage cabinet according to claim 2, characterized in that: The cover shell (3) is provided with a recessed groove (31) for supporting the gasket (6); an extension portion (32) is provided on the outer wall of the bottom of the cover shell (3) and is inserted into the groove (22); a sealing strip (33) is provided on the bottom of the cover shell (3) and abuts against the cabinet door (2); the sealing strip (33) protrudes from the end surface of the bottom of the cover shell (3).

4. The explosion-proof observation window for a high-voltage cabinet according to claim 3, characterized in that: The pressure-bearing bracket (51) is provided with a plurality of blind holes (54) for accommodating the first spring (52), and the pressure-bearing bracket (51) is lower than the end surface of the bottom of the cover shell (3).

5. The explosion-proof observation window for a high-voltage cabinet according to claim 3, characterized in that: The cabinet door (2) is provided with a support block (23) located on the opposite side of the notch groove (22), and sliding holes (24) are provided on both sides of the support block (23).

6. The explosion-proof observation window for a high-voltage cabinet according to claim 5, characterized in that: The clamping assembly (4) includes a clamping plate (41), the clamping plate (41) is provided with a stop portion (411) and is in a vertical relationship with the clamping plate (41), the clamping plate (41) is provided with at least two guide rods (42), the guide rods (42) are slidably arranged in the sliding hole (24), the end surface of the guide rod (42) is provided with a stop portion (421), the outer wall of the guide rod (42) is provided with a second spring (43), the second spring (43) respectively abuts the support block (23) and the clamping plate (41), so that the clamping plate (41) abuts the extension portion (32), and the stop portion (411) abuts the end surface of the extension portion (32).

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