Observation window assembly and low-voltage cabinet

Abstract

The embodiment of the utility model provides an observation window assembly and a low-voltage cabinet, and relates to the technical field of low-voltage cabinets. The observation window assembly comprises an observation window and an installation assembly. The mounting assembly comprises a mounting base plate, a damping assembly and a connecting piece. The mounting substrate is used for being connected with a cabinet body of the low-voltage cabinet, at least one side of the observation window is provided with a damping assembly, and the connecting piece penetrates through the observation window and the damping assembly and is connected with the mounting substrate. The observation window assembly provided by the embodiment of the utility model is simple in structure, good in shock resistance, capable of effectively reducing the risk of fracture during transportation, easy to disassemble, assemble, maintain and replace, and capable of reducing site construction.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage cabinets, and in particular to an observation window assembly and a low-voltage cabinet. Background Art

[0002] At present, the conventional observation window on the low-voltage cabinet is usually fixed by bolts on both sides, and the bolts are fixed to the cabinet body of the low-voltage cabinet through the observation window fixing holes. The fixing structure of this observation window is simple, the process of disassembling and assembling the observation window is cumbersome, and the earthquake resistance is poor. The observation window is fragile during transportation, which causes great inconvenience to installation and on-site construction. Utility Model Content

[0003] The problem solved by the utility model is that the disassembly and assembly process of the observation window on the conventional low-voltage cabinet is cumbersome, the earthquake resistance effect is poor, and the observation window is fragile during transportation, which causes great inconvenience to the installation and on-site construction.

[0004] In order to solve the above problems, an embodiment of the utility model provides an observation window assembly and a low-voltage cabinet.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, an embodiment of the utility model provides an observation window assembly, comprising: an observation window and a mounting assembly;

[0007] The mounting assembly includes a mounting base, a shock absorbing assembly and a connecting piece; the mounting base is used to be connected to the cabinet body of the low-voltage cabinet, the shock absorbing assembly is provided on at least one side of the observation window, and the connecting piece passes through the observation window and the shock absorbing assembly and is connected to the mounting base.

[0008] The observation window assembly provided in the embodiment of the utility model is connected to the cabinet through an installation base plate, which facilitates the installation of the observation window assembly on the cabinet. By providing a shock-absorbing assembly, the observation window can be shock-absorbing, effectively improving the anti-seismic effect of the observation window, and effectively reducing the risk of the observation window breaking during transportation. The connecting member passes through the observation window and the shock-absorbing assembly and is connected to the installation base plate, so that the observation window is easy to disassemble, maintain and replace, and on-site construction can be reduced. Therefore, the observation window assembly provided in the embodiment of the utility model has a simple structure and good anti-seismic ability, can effectively reduce the risk of breakage during transportation, is easy to disassemble, maintain and replace, and reduces on-site construction.

[0009] Further, in an optional embodiment, the shock absorbing assembly includes a first shock absorbing rubber strip;

[0010] The first shock-absorbing rubber strip is located between the observation window and the mounting substrate;

[0011] The connecting member passes through the observation window and the first shock-absorbing rubber strip in sequence and is connected to the mounting substrate.

[0012] Further, in an optional embodiment, the first shock-absorbing rubber strip is adhered to a surface of one side of the mounting substrate close to the observation window.

[0013] Further, in an optional embodiment, the shock absorbing assembly further includes a second shock absorbing rubber strip and a holding plate;

[0014] The second shock-absorbing rubber strip is arranged on a side of the observation window away from the first shock-absorbing rubber strip, and is located between the observation window and the holding plate;

[0015] The connecting member passes through the holding plate, the second shock-absorbing rubber strip, the observation window and the first shock-absorbing rubber strip in sequence, and is connected to the mounting base plate.

[0016] Further, in an optional embodiment, the second shock-absorbing rubber strip is bonded to a side surface of the holding plate close to the observation window.

[0017] Further, in an optional embodiment, a limiting protrusion is provided at one end of the holding plate;

[0018] A bending portion is provided at one end of the mounting substrate, and a limiting notch is provided on the bending portion;

[0019] The limiting protrusion is inserted into the limiting notch.

[0020] Further, in an optional embodiment, the mounting assembly further includes a fastening nut;

[0021] The mounting substrate is provided with a receiving hole, the fastening nut is embedded in the receiving hole and riveted to the mounting substrate;

[0022] The connecting piece passes through the observation window and the shock absorbing assembly and is threadably matched with the fastening nut.

[0023] Further, in an optional embodiment, the number of the mounting components includes two, and the two mounting components are respectively connected to two ends of the observation window.

[0024] In a second aspect, an embodiment of the utility model provides a low-voltage cabinet, which includes a cabinet body and an observation window assembly as described in any one of the above embodiments. The observation window assembly includes an observation window and a mounting assembly. The mounting assembly includes a mounting substrate, a shock absorbing assembly, and a connecting member. The mounting substrate is connected to the cabinet body, the shock absorbing assembly is provided on at least one side of the observation window, and the connecting member passes through the observation window and the shock absorbing assembly and is connected to the mounting substrate.

[0025] The technical effect of the low-voltage cabinet provided by the embodiment of the utility model is similar to the technical effect of the observation window assembly provided by the embodiment of the utility model. The observation window assembly on the low-voltage cabinet has a simple structure and good seismic resistance, can effectively reduce the risk of transportation rupture, is easy to disassemble, maintain and replace, and reduces on-site construction.

[0026] Furthermore, in an optional embodiment, a fastener is also included; the mounting base is provided with a first mounting hole, the cabinet is provided with a plurality of second mounting holes along the height direction, and the first mounting hole is selectively connected to at least one of the plurality of second mounting holes through the fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a low-voltage cabinet to which the observation window assembly provided in an embodiment of the utility model is applied;

[0029] Figure 2 A schematic diagram of the exploded structure of the observation window assembly provided in the embodiment of the utility model;

[0030] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at point III in the middle.

[0031] icon:

[0032] 1- low voltage cabinet; 11- cabinet body; 101- second mounting hole; 12- fastener;

[0033] 10-observation window assembly; 100-observation window; 110-first perforation;

[0034] 200-installation assembly; 210-installation substrate; 211-first installation hole; 212-accommodation hole; 213-bending portion; 214-limiting notch;

[0035] 202- shock-absorbing assembly; 220- first shock-absorbing rubber strip; 221- fourth perforation; 230- second shock-absorbing rubber strip; 231- third perforation; 240- holding plate; 241- reinforcing portion; 242- second perforation; 243- limiting protrusion;

[0036] 250-connecting piece; 260-fastening nut. DETAILED DESCRIPTION

[0037] At present, the conventional observation window on the low-voltage cabinet is usually fixed by bolts on both sides, and the bolts are fixed to the cabinet body of the low-voltage cabinet through the observation window fixing holes. The fixing structure of this observation window is simple, the process of disassembling and assembling the observation window is cumbersome, and the earthquake resistance is poor. The observation window is fragile during transportation, which causes great inconvenience to installation and on-site construction.

[0038] In view of this, the utility model provides an observation window assembly and a low-voltage cabinet, which not only have good earthquake resistance and can effectively reduce the risk of breakage during transportation, but also have a simple structure and are easy to disassemble, maintain and replace, thereby reducing on-site construction.

[0039] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0040] See also Figure 1 The observation window assembly 10 provided by the utility model is applied to a low voltage cabinet 1. The low voltage cabinet 1 comprises a cabinet body 11 and the observation window assembly 10, wherein the observation window assembly 10 is connected to the cabinet body 11. The observation window assembly 10 is used for an operator to observe electrical components inside the cabinet body 11 through the observation window assembly 10.

[0041] As an example, in this embodiment, a molded case circuit breaker is provided in the cabinet 11, and the observation window assembly 10 is provided at a position corresponding to the molded case circuit breaker on the cabinet 11. In the working state, an operator may have a risk of electric shock when operating the molded case circuit breaker, so the observation window assembly 10 is used to block the charged body and facilitate observation by the operator.

[0042] See also Figure 2 The observation window assembly 10 includes an observation window 100 and a mounting assembly 200. The mounting assembly 200 includes a mounting substrate 210, a shock absorbing assembly 202 and a connector 250. The mounting substrate 210 is used to connect with the cabinet body 11 of the low-voltage cabinet 1, and the shock absorbing assembly 202 is provided on at least one side of the observation window 100. The connector 250 passes through the observation window 100 and the shock absorbing assembly 202, and is connected to the mounting substrate 210.

[0043] The observation window assembly 10 provided in the embodiment of the utility model is connected to the cabinet 11 through the mounting substrate 210, so that the observation window assembly 10 is easy to install on the cabinet 11. By setting the shock-absorbing assembly 202, the observation window 100 can be shock-absorbing, the shock-resistant effect of the observation window 100 can be effectively improved, and the risk of the observation window 100 breaking during transportation can be effectively reduced. The connecting piece 250 passes through the observation window 100 and the shock-absorbing assembly 202 and is connected to the mounting substrate 210, so that the observation window 100 is easy to disassemble, maintain and replace, and on-site construction can be reduced. Therefore, the observation window assembly 10 provided in the embodiment of the utility model has a simple structure and good shock resistance, can effectively reduce the risk of transportation breakage, is easy to disassemble, maintain and replace, and reduces on-site construction.

[0044] It should be noted that the number of the mounting components 200 is not specifically limited, and can be one or more. In this embodiment, the cabinet 11 adopts a bracket structure, and the two ends of the observation window 100 are respectively connected to the cabinet 11. Therefore, the number of the mounting components 200 includes two, and the two mounting components 200 are respectively connected to the two ends of the observation window 100 ( Figure 2 Only one mounting assembly 200 is shown in the figure. The two mounting assemblies 200 have the same structure, but the connection positions are different. In this way, the observation window 100 can be installed on the cabinet 11 very conveniently and is easy to disassemble. After the observation window 100 is installed, both ends of the observation window 100 are firmly fixed, and the structure is more stable.

[0045] In addition, the observation window 100 is made of a transparent material, which is convenient for observing the components in the cabinet 11. The observation window 100 is generally a rectangular plate-shaped structure. A first through hole 110 is provided on the observation window 100 for the connector 250 to pass through. In this embodiment, a first through hole 110 is provided at each of the left and right ends of the observation window 100, so that the connectors 250 of the two mounting components 200 can pass through respectively.

[0046] The structure of the installation assembly 200 and its components are described in detail below:

[0047] In this embodiment, the shock absorbing assembly 202 may include a first shock absorbing rubber strip 220, a second shock absorbing rubber strip 230 and a holding plate 240. The first shock absorbing rubber strip 220 is located between the observation window 100 and the mounting substrate 210. The second shock absorbing rubber strip 230 is disposed on a side of the observation window 100 away from the first shock absorbing rubber strip 220 and is located between the observation window 100 and the holding plate 240. The connecting member 250 passes through the holding plate 240, the second shock absorbing rubber strip 230, the observation window 100 and the first shock absorbing rubber strip 220 in sequence, and is connected to the mounting substrate 210.

[0048] In this way, by arranging the first shock-absorbing rubber strip 220 between the observation window 100 and the mounting substrate 210, the observation window 100 and the mounting substrate 210 can achieve a shock-absorbing effect; by arranging the second shock-absorbing rubber strip 230 between the observation window 100 and the holding plate 240, the observation window 100 and the holding plate 240 can achieve a shock-absorbing effect. The connecting member 250 passes through the holding plate 240, the second shock-absorbing rubber strip 230, the observation window 100 and the first shock-absorbing rubber strip 220 in sequence and is connected to the mounting substrate 210, so that the holding plate 240, the second shock-absorbing rubber strip 230, the observation window 100, the first shock-absorbing rubber strip 220 and the mounting substrate 210 can be pressed together to achieve the purpose of serial connection, facilitate disassembly and assembly, and improve the shock-resistant effect.

[0049] It should be noted that, in the present embodiment, the first shock-absorbing rubber strip 220 and the second shock-absorbing rubber strip 230 are respectively arranged on the front and back sides of the observation window 100, so as to play a shock-absorbing role at the same time, thereby improving the shock-absorbing effect. Of course, in the optional embodiments of the utility model, the shock-absorbing rubber strip can also be arranged only on one side of the observation window 100. For example, in some optional embodiments, the first shock-absorbing rubber strip 220 is arranged only between the observation window 100 and the mounting substrate 210. At this time, the connecting member 250 passes through the observation window 100 and the first shock-absorbing rubber strip 220 in sequence, and is connected to the mounting substrate 210. In this way, the first shock-absorbing rubber strip 220 can also play a shock-absorbing effect and is easy to disassemble and assemble. For another example, in some other optional embodiments, the second shock-absorbing rubber strip 230 and the holding plate 240 may be provided only on the side of the observation window 100 away from the mounting substrate 210, and the second shock-absorbing rubber strip 230 is located between the observation window 100 and the holding plate 240. In this case, the connecting member 250 passes through the holding plate 240, the second shock-absorbing rubber strip 230 and the observation window 100 in sequence, and is connected to the mounting substrate 210. In this way, the second shock-absorbing rubber strip 230 can also achieve a shock-absorbing effect, and the disassembly and assembly of the observation window 100 is facilitated.

[0050] The connecting member 250 can optionally be a bolt, for example, a hand-tightened bolt, the screw portion of the bolt passes through the holding plate 240, the second shock-absorbing rubber strip 230, the observation window 100, the first shock-absorbing rubber strip 220 in sequence and is connected to the mounting base plate 210, the nut portion of the bolt is tightly pressed on the holding plate 240, and the holding plate 240, the second shock-absorbing rubber strip 230, the observation window 100, the first shock-absorbing rubber strip 220 and the mounting base plate 210 are tightly fixed together to achieve the purpose of series connection.

[0051] The holding plate 240 is roughly in the shape of a rectangular plate, and sheet metal may be used. The left and right sides of the holding plate 240 are bent in a direction perpendicular to the plate surface of one side of the holding plate 240 to form a reinforcing portion 241. In this way, the reinforcing portion 241 is in the shape of a long strip, which can increase the strength of the holding plate 240 and prevent the connector 250 from deforming the holding plate 240 during tightening. The holding plate 240 is provided with a second through hole 242 for the connector 250 to pass through. A limiting protrusion 243 is provided at one end of the holding plate 240, and the limiting protrusion 243 is used to insert into one end of the mounting substrate 210, thereby positioning and limiting the holding plate 240.

[0052] The second shock-absorbing rubber strip 230 is roughly in a rectangular sheet structure. The second shock-absorbing rubber strip 230 is provided with a third perforation 231 for the connector 250 to pass through. In addition, in order to facilitate the fixing of the position of the second shock-absorbing rubber strip 230 and improve the shock-absorbing effect, in this embodiment, the second shock-absorbing rubber strip 230 is bonded to the side surface of the holding plate 240 close to the observation window 100. It should be understood that the second shock-absorbing rubber strip 230 is bonded to the side surface of the holding plate 240 away from the reinforcing portion 241. In order to improve the shock-absorbing effect, the shape and size of the second shock-absorbing rubber strip 230 match the side surface of the holding plate 240 away from the reinforcing portion 241, that is, the second shock-absorbing rubber strip 230 can completely cover the side surface of the holding plate 240 away from the reinforcing portion 241.

[0053] The first shock-absorbing rubber strip 220 is roughly in a rectangular sheet structure. The first shock-absorbing rubber strip 220 is provided with a fourth perforation 221 for the connector 250 to pass through. Optionally, the diameter of the fourth perforation 221 may be greater than the diameter of the third perforation 231. In addition, in order to facilitate the fixing of the position of the first shock-absorbing rubber strip 220 and improve the shock-absorbing effect, in this embodiment, the first shock-absorbing rubber strip 220 is bonded to the side surface of the mounting substrate 210 close to the observation window 100. In order to improve the shock-absorbing effect, the shape and size of the first shock-absorbing rubber strip 220 match the shape and size of the second shock-absorbing rubber strip 230. In addition, in an optional embodiment, the shape and size of the first shock-absorbing rubber strip 220 may not be consistent with the shape and size of the second shock-absorbing rubber strip 230, for example, the area of ​​the first shock-absorbing rubber strip 220 may be greater than the area of ​​the second shock-absorbing rubber strip 230, or the area of ​​the first shock-absorbing rubber strip 220 may be smaller than the area of ​​the second shock-absorbing rubber strip 230.

[0054] The mounting assembly 200 may further include a fastening nut 260. The fastening nut 260 is riveted to the mounting substrate 210. For example, a riveting tool may be used to rivet the fastening nut 260 to the mounting substrate 210. The connector 250 passes through the observation window 100 and the shock absorbing assembly 202, and is threadedly matched with the fastening nut 260, thereby fixing the observation window 100 and the shock absorbing assembly 202 to the mounting substrate 210. In this embodiment, the connector 250 passes through the holding plate 240, the second shock absorbing rubber strip 230, the observation window 100, and the first shock absorbing rubber strip 220 in sequence, and is threadedly matched with the fastening nut 260, thereby connecting the holding plate 240, the second shock absorbing rubber strip 230, the observation window 100, the first shock absorbing rubber strip 220, and the mounting substrate 210 in series, which is convenient for disassembly and assembly, and the structure is more stable, thereby improving the shock absorption effect. In addition, the diameter of the fourth through hole 221 is larger than the diameter of the third through hole 231 , so that the fastening nut 260 can be avoided.

[0055] The mounting substrate 210 is used to connect with the cabinet 11, so as to install the entire observation window assembly 10 on the cabinet 11. The mounting substrate 210 is generally a rectangular plate-shaped structure, and the mounting substrate 210 can be optionally a sheet metal part. The mounting substrate 210 is provided with a first mounting hole 211 for connecting with the cabinet 11. In this embodiment, there are three first mounting holes 211, and the three first mounting holes 211 are arranged in sequence along the length direction of the mounting substrate 210.

[0056] The mounting substrate 210 is provided with a receiving hole 212, and the fastening nut 260 is embedded in the receiving hole 212 and riveted to the mounting substrate 210. In this embodiment, there are two receiving holes 212, and the two receiving holes 212 are symmetrically distributed relative to the center line in the length direction of the mounting substrate 210. The fastening nut 260 is embedded in one of the receiving holes 212. By providing two receiving holes 212, the versatility of the mounting substrate 210 can be achieved, that is, the mounting substrate 210 can be connected to the left end of the observation window 100, and when the mounting substrate 210 is connected to the right end of the observation window 100, it is only necessary to flip the other mounting substrate 210 180°, and the right end of the observation window 100 can also be installed.

[0057] A bending portion 213 is provided at one end of the mounting substrate 210, and a limiting notch 214 is provided on the bending portion 213. The bending portion 213 is formed by bending one end of the mounting substrate 210 in a direction perpendicular to the plate surface of the mounting substrate 210. The shape of the limiting notch 214 is not specifically limited. As an example, a rectangular notch can be used. In this embodiment, the limiting protrusion 243 is inserted into the limiting notch 214, so as to limit the holding plate 240 before tightening the connector 250. In this embodiment, there are two bending portions 213, and the two bending portions 213 are respectively provided at the two ends in the length direction of the mounting substrate 210, that is, the upper and lower ends of the mounting substrate 210, and each bending portion 213 is provided with a limiting notch 214. In this way, by providing a bending portion 213 at the upper and lower ends of the mounting substrate 210, the versatility of the mounting substrate 210 can be achieved. That is, the mounting substrate 210 can be connected to the left end of the observation window 100, and when the mounting substrate 210 is connected to the right end of the observation window 100, it is only necessary to flip the other mounting substrate 210 180°, and the limiting protrusion 243 can also be inserted into the limiting notch 214 so that the right end of the observation window 100 can be installed.

[0058] In addition, since the observation window assembly 10 is used to shield the molded case circuit breaker and facilitate observation, the observation window assembly 10 can partially or completely shield the molded case circuit breaker in actual application. Therefore, the installation position of the observation window assembly 10 relative to the cabinet 11 in the height direction can be flexibly adjusted.

[0059] See also Figure 3 In this embodiment, in order to facilitate the adjustment of the installation position of the observation window assembly 10 in the height direction of the cabinet 11, the low-voltage cabinet 1 may further include a fastener 12. In addition, the cabinet 11 is provided with a plurality of second installation holes 101 along the height direction, and the first installation hole 211 is selectively connected to at least one of the plurality of second installation holes 101 through the fastener 12. In this way, different second installation holes 101 are selected through the first installation hole 211 for corresponding connection, thereby adjusting the installation position of the observation window assembly 10 in the height direction of the cabinet 11. The fastener 12 may be a bolt.

[0060] It should be noted that, as an example, the cabinet 11 is connected by multiple profiles to form a bracket structure, wherein multiple second mounting holes 101 are provided on the vertically arranged profile, and the number of the second mounting holes 101 exceeds three. In actual applications, the second mounting holes 101 on the profile are arranged in sequence from the top to the bottom along the height direction thereof. In this way, the three first mounting holes 211 can be selectively connected to three different second mounting holes 101 on the cabinet 11, thereby adjusting the installation position of the observation window assembly 10 in the height direction of the cabinet 11, and the installation is more secure.

[0061] When installing the observation window assembly 10 provided in this embodiment, the installation substrate 210 can be first installed on the cabinet 11, and then the connecting piece 250 can be used to sequentially pass through the second through hole 242 on the holding plate 240, the third through hole 231 on the second shock-absorbing rubber strip 230, the first through hole 110 on the observation window 100 and the fourth through hole 221 on the first shock-absorbing rubber strip 220, and threadedly cooperate with the fastening nut 260; or the connecting piece 250 can be used to sequentially pass through the second through hole 242 on the holding plate 240, the third through hole 231 on the second shock-absorbing rubber strip 230, the first through hole 110 on the observation window 100 and the fourth through hole 221 on the first shock-absorbing rubber strip 220, and threadedly cooperate with the fastening nut 260, and then the installation substrate 210 can be installed on the cabinet 11, so that the entire observation window assembly 10 is installed on the cabinet 11.

[0062] In summary, the observation window assembly 10 and the low-voltage cabinet 1 provided in the embodiment of the utility model are connected to the cabinet body 11 through the mounting substrate 210, so that the observation window assembly 10 is easily installed on the cabinet body 11. By setting the shock-absorbing assembly 202, the observation window 100 can be shock-absorbing, and the anti-seismic effect of the observation window 100 can be effectively improved, and the risk of the observation window 100 breaking during transportation can be effectively reduced. The connecting piece 250 passes through the observation window 100 and the shock-absorbing assembly 202 and is connected to the mounting substrate 210, so that the observation window 100 is easy to disassemble, maintain and replace, and on-site construction can be reduced. Therefore, the observation window assembly 10 provided in the embodiment of the utility model has a simple structure and good anti-seismic ability, can effectively reduce the risk of transportation breakage, is easy to disassemble, maintain and replace, and reduces on-site construction.

[0063] Although the utility model is disclosed as above, the utility model is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the scope defined by the claims.

Claims

1. An observation window assembly, characterized in that: include: An observation window (100) and a mounting assembly (200); the mounting assembly (200) comprises a mounting substrate (210), a shock absorbing assembly (202) and a connecting piece (250); the mounting substrate (210) is used to be connected to a cabinet body (11) of a low-voltage cabinet (1); at least one side of the observation window (100) is provided with the shock absorbing assembly (202); the connecting piece (250) passes through the observation window (100) and the shock absorbing assembly (202), and is connected to the mounting substrate (210).

2. The observation window assembly according to claim 1, characterized in that: The shock absorbing assembly (202) comprises a first shock absorbing rubber strip (220); The first shock-absorbing rubber strip (220) is located between the observation window (100) and the mounting substrate (210); The connecting member (250) passes through the observation window (100) and the first shock-absorbing rubber strip (220) in sequence, and is connected to the mounting substrate (210).

3. The observation window assembly according to claim 2, characterized in that: The first shock-absorbing rubber strip (220) is bonded to a surface of one side of the mounting substrate (210) close to the observation window (100).

4. The observation window assembly according to claim 2, characterized in that: The shock absorbing assembly (202) further comprises a second shock absorbing rubber strip (230) and a holding plate (240); The second shock-absorbing rubber strip (230) is arranged on a side of the observation window (100) away from the first shock-absorbing rubber strip (220), and is located between the observation window (100) and the holding plate (240); the connecting member (250) passes through the holding plate (240), the second shock-absorbing rubber strip (230), the observation window (100) and the first shock-absorbing rubber strip (220) in sequence, and is connected to the mounting substrate (210).

5. The observation window assembly according to claim 4, characterized in that: The second shock-absorbing rubber strip (230) is bonded to a surface of one side of the holding plate (240) close to the observation window (100).

6. The observation window assembly according to claim 4, characterized in that: A limiting protrusion (243) is provided at one end of the holding plate (240); A bending portion (213) is provided at one end of the mounting substrate (210), and a limiting notch (214) is provided on the bending portion (213); The limiting protrusion (243) is inserted into the limiting notch (214).

7. The observation window assembly according to any one of claims 1 to 6, characterized in that: The mounting assembly (200) further includes a fastening nut (260); The mounting substrate (210) is provided with a receiving hole (212), and the fastening nut (260) is embedded in the receiving hole (212) and riveted to the mounting substrate (210); The connecting piece (250) passes through the observation window (100) and the shock absorbing assembly (202), and is threadedly matched with the fastening nut (260).

8. The observation window assembly according to any one of claims 1 to 6, characterized in that: The number of the installation components (200) includes two, and the two installation components (200) are respectively connected to two ends of the observation window (100).

9. A low voltage cabinet, characterized in that: It comprises a cabinet (11) and an observation window assembly (10) according to any one of claims 1 to 8, wherein the mounting substrate (210) is connected to the cabinet (11).

10. The low voltage cabinet according to claim 9, characterized in that: It also includes a fastener (12); the mounting base plate (210) is provided with a first mounting hole (211); the cabinet (11) is provided with a plurality of second mounting holes (101) along a height direction; the first mounting hole (211) is selectively connected to at least one of the plurality of second mounting holes (101) via the fastener (12).

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