Indicator lamp mounting structure and power box

Abstract

The utility model discloses an indicating lamp mounting structure which is characterized by comprising a window sleeve, a sealing ring, explosion-proof glass, a pressing ring and an indicating lamp circuit board, the window sleeve is fixedly arranged on a box body or a box door of the power box in a penetrating manner; the window sleeve inner hole is provided with an outer hole section, a step surface and an inner hole section, and the inner diameter of the outer hole section is smaller than that of the inner hole section; the sealing ring and the explosion-proof glass are sequentially arranged in the inner hole section and are blocked by the step surface; the compression ring is fixedly connected with the inner end of the window sleeve and compresses the explosion-proof glass; the indicating lamp circuit board is fixed on the hold-down ring; an indicating lamp is arranged on one side, facing the explosion-proof glass, of the indicating lamp circuit board; and the indicating lamp is positioned in the pressing ring. The explosion-proof indicating lamp can solve the technical problem that an existing indicating lamp is installed on a power box and cannot meet the explosion-proof requirement. The utility model also discloses a power box.

Description

Technical Field

[0001] The utility model relates to an indicator light installation structure and a power supply box. Background Art

[0002] The mine flameproof and intrinsically safe power supply box is a flameproof and intrinsically safe uninterruptible power supply that can be used in explosive hazardous environments such as gas and coal dust. It can be used to provide power to various mine intrinsically safe equipment and has an explosion-proof mark: "Ex db[ib Mb]ⅠMb".

[0003] Due to the explosion-proof requirements of the flameproof and intrinsically safe power supply box for mines, the original flameproof and intrinsically safe power supply box for mines does not have an indicator light on the box body or door. The key problem is that according to the existing indicator light installation method, an observation hole for the indicator light is opened on the box body or door, and the indicator light is exposed in the observation hole or directly extended outward, so it cannot resist the impact of the explosion and cannot meet the explosion-proof requirements for mines.

[0004] The presence of the power indicator light is of great significance for judging at a glance whether the power box is powered on, which can improve the safety of operation and facilitate the rapid judgment of equipment failure. Utility Model Content

[0005] The utility model provides an indicator light installation structure, which can solve the technical problem that the existing indicator light installed on the power box cannot meet the explosion-proof requirements.

[0006] In order to achieve the above-mentioned purpose, the scheme of the utility model is: an indicator light installation structure, characterized in that: it includes a window cover, a sealing ring, explosion-proof glass, a clamping ring and an indicator light circuit board; the window cover is fixedly installed on the box body or the door of the power box; the inner hole of the window cover has an outer hole section, a step surface and an inner hole section, and the inner diameter of the outer hole section is smaller than the inner diameter of the inner hole section; the sealing ring and the explosion-proof glass are sequentially installed in the inner hole section and blocked by the step surface; the clamping ring is fixedly connected to the inner end of the window cover and presses the explosion-proof glass; the indicator light circuit board is fixed on the clamping ring; an indicator light is provided on the indicator light circuit board on the side facing the explosion-proof glass; the indicator light is located in the clamping ring.

[0007] Preferably, the window cover is installed on the box body of the power box, the outer wall surface of the box body of the power box is circumferentially welded and fixed to the window cover, and the inner wall surface of the box body of the power box is circumferentially welded and fixed to the window cover;

[0008] Alternatively, the window cover is installed on the door of the power box, the outer wall surface of the door of the power box is circumferentially welded and fixed to the window cover, and the inner wall surface of the door of the power box is circumferentially welded and fixed to the window cover.

[0009] Furthermore, a retaining ring is provided at the outer end of the window frame and is circumferentially welded and fixed to the outer wall surface of the box body or the outer wall surface of the box door of the power box.

[0010] Preferably, the sealing ring is made of copper.

[0011] Preferably, the sealing ring has a thickness of 2-3 mm.

[0012] Preferably, the window frame is made of steel or aluminum alloy, and has a wall thickness of 5-10 mm.

[0013] Preferably, the explosion-proof glass has a thickness of 8-15 mm.

[0014] Preferably, the clamping ring is made of steel or aluminum alloy, and has a wall thickness of 5-10 mm.

[0015] Another object of the utility model is to provide a power supply box, characterized by having an indicator light installation structure according to any one of the above technical solutions.

[0016] Beneficial effects of the utility model:

[0017] First, the utility model can use the outer hole section as an observation port, and then see the working condition of the indicator light through the transparent explosion-proof glass, and judge whether the power box is powered on at a glance; at the same time, because the indicator light is combined with the window cover, the sealing ring, the explosion-proof glass, and the clamping ring to form a strengthening and protective structure, it can meet the explosion-proof and sealing safety requirements at the same time, and can solve the technical problem that the existing indicator light installed on the power box cannot meet the explosion-proof requirements;

[0018] Second, the utility model installs the sealing ring and the explosion-proof glass into the inner hole section in sequence and is blocked by the step surface, and the clamping ring is fixedly connected to the inner end of the window cover and clamps the explosion-proof glass, so that the sealing ring and the explosion-proof glass in the window cover are blocked by the step surface to limit the internal and external displacement, and at the same time, the clamping ring limits the sealing ring and the explosion-proof glass from loosening inwards and cannot loosen axially and radially, which can ensure that the sealing ring and the explosion-proof glass are firmly fixed in the window cover, and can thus withstand impact and maintain a stable seal;

[0019] Third, the utility model is that the outer wall of the box door (or box body) of the power box is attached to the retaining ring at the outer end of the window cover and circumferentially welded; at the same time, the inner wall of the box door (or box body) of the power box is circumferentially welded and fixed to the window cover. Since the inner and outer layers of the window cover are circumferentially welded and blocked by the retaining ring, it is multiplied and the explosion-proof capability is greatly improved;

[0020] Fourthly, the utility model can prevent the explosion-proof glass from loosening due to uneven surface and poor contact when the explosion-proof glass is in direct high-rigidity contact with the explosion-proof glass because the explosion-proof glass is fitted with the step surface through the sealing ring and the sealing ring is squeezed and deformed to fill the seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1-2 This is a structural schematic diagram of an indicator light installation structure in the first embodiment of the present invention being arranged on a box door of a power box.

[0022] Figure 3 yes Figure 2 Middle AA section view.

[0023] Figure 4 It is a split exploded view of the indicator light installation structure in the first or second embodiment.

[0024] Figure 5 This is a structural schematic diagram of an indicator light installation structure in the second embodiment of the present invention being arranged on a box body of a power box.

[0025] Figure 6 yes Figure 5 Middle BB cross-section. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0027] Example 1: See Figure 1-4 , an indicator light installation structure, which includes a window cover 1, a sealing ring 2, an explosion-proof glass 3, a clamping ring 4 and an indicator light circuit board 5.

[0028] In this embodiment, the window cover 1 is made of steel or aluminum alloy or other high-strength materials, and its wall thickness is 5-10 mm.

[0029] In this embodiment, the explosion-proof glass 3 has a thickness of 8-15 mm, which can provide sufficient explosion-proof strength while not being too thick and costly.

[0030] In this embodiment, the clamping ring 4 is made of steel or aluminum alloy or other high-strength materials, and its wall thickness is 5-10 mm.

[0031] In this embodiment, see Figure 1-2 The window cover 1 is fixedly mounted on the box door K-2 of the power box.

[0032] In this embodiment, see Figure 3 The window cover 1 is installed on the box door K-2 of the power box, the outer wall surface of the box door of the power box is circumferentially welded and fixed to the window cover 1, and the inner wall surface of the box door of the power box is circumferentially welded and fixed to the window cover 1.

[0033] See also Figure 3 Furthermore, a retaining ring 1-4 is provided at the outer end of the window cover 1 and is circumferentially welded and fixed to the outer wall surface of the box door K-2 or the outer wall surface of the box door of the power box through the retaining ring 1-4. Since the retaining ring 1-4 resists the impact, the ability of the window cover 1 to resist the impact force of the explosion can be greatly improved.

[0034] See also Figure 2-4 The inner hole of the window cover 1 comprises an outer hole section 1-1, a step surface 1-2 and an inner hole section 1-3, and the inner diameter of the outer hole section 1-1 is smaller than the inner diameter of the inner hole section 1-3.

[0035] Among them, see Figure 1-3 The sealing ring 2 and the explosion-proof glass 3 are sequentially installed in the inner hole section 1-3 and blocked by the step surface 1-2; the clamping ring 4 is fixedly connected to the inner end of the window cover 1 and clamps the explosion-proof glass 3. In this way, the sealing ring 2 and the explosion-proof glass 3 in the window cover 1 are blocked by the step surface 1-2 to limit the displacement inward and outward, and the clamping ring 4 limits the sealing ring 2 and the explosion-proof glass 3 from loosening inward, and at the same time cannot loosen axially and radially, so that the sealing ring 2 and the explosion-proof glass 3 can be firmly fixed in the window cover 1, and can withstand impact and maintain stable sealing.

[0036] Since the explosion-proof glass 3 is fitted with the step surface 1-2 through the sealing ring 2, the sealing ring 2 is squeezed and deformed to fill the seal and seal, which can prevent the explosion-proof glass 3 from loosening due to uneven surface and poor contact when it is in direct high-rigidity contact with the explosion-proof glass 3.

[0037] In this embodiment, the sealing ring 2 is made of copper. Preferably, the sealing ring 2 has a thickness of 2-3 mm. The sealing ring 2 is made of relatively soft copper, which can achieve sealing by a small deformation through extrusion. At the same time, it has a certain toughness and strength, which can better meet the sealing performance during explosion-proof.

[0038] See also Figure 1-3 , wherein the indicator light circuit board 5 is fixed on the clamping ring 4; specifically, the clamping ring 4 is attached to the inner end surface of the window frame 1 and is fixed and locked by four first bolts 6.

[0039] See also Figure 1-3 , wherein an indicator light 5-1 is provided on the indicator light circuit board 5 on the side facing the explosion-proof glass 3 and the indicator light 5-1 is located inside the clamping ring 4. Figure 1-3 Specifically, the indicator light circuit board 5 is attached to the inner end surface of the clamping ring 4 and is fixed and locked by four second bolts 7.

[0040] See also Figure 1-3In this embodiment, the window cover 1 is installed on the box door K-2 of the power box, and the box door K-2 is provided with a through hole. During installation, the window cover 1 is installed on the installation hole; then the outer wall surface of the box door K-2 of the power box is attached to the retaining ring 1-4 at the outer end of the window cover 1 and circumferentially welded; at the same time, the inner wall surface of the box door K-2 of the power box is circumferentially welded and fixed to the outer circular surface of the window cover 1. Since the inner and outer layers of the window cover 1 are circumferentially welded and blocked by the retaining ring 1-4, it is multiplied and greatly improved in explosion-proof capability.

[0041] See also Figure 2 Whether the power box is powered on can be checked through the outer hole section 1-1 as an observation port, and then the working condition of the indicator light can be seen through the transparent explosion-proof glass 3. The strengthening and protective structure formed by the combination of the indicator light, the window cover 1, the sealing ring 2, the explosion-proof glass 3, and the clamping ring 4 can meet the explosion-proof and sealing safety requirements at the same time.

[0042] Embodiment 2: It is basically the same as Embodiment 1, except that:

[0043] In this embodiment, see Figure 5-6 The window cover 1 is fixedly mounted on the box body K-1 of the power box.

[0044] Specifically, the box body K-1 is provided with a mounting hole, the window cover 1 is mounted on the mounting hole of the box body K-1, the outer wall surface of the box body K-1 of the power box is circumferentially welded and fixed to the retaining ring 1-4 on the window cover 1, and the inner wall surface of the box body K-1 of the power box is circumferentially welded and fixed to the outer cylindrical surface of the window cover 1.

[0045] Example 3: See Figure 1-3 or Figure 5-6 , a power box having an indicator light installation structure as described in Example 1 or Example 2.

[0046] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An indicator light installation structure, characterized in that: It comprises a window cover (1), a sealing ring (2), explosion-proof glass (3), a clamping ring (4) and an indicator light circuit board (5); The window cover (1) is fixedly mounted on the box body or the door of the power box; The inner hole of the window cover (1) comprises an outer hole section (1-1), a step surface (1-2) and an inner hole section (1-3); the inner diameter of the outer hole section (1-1) is smaller than the inner diameter of the inner hole section (1-3); The sealing ring (2) and the explosion-proof glass (3) are sequentially installed in the inner hole section (1-3) and blocked by the step surface (1-2); The clamping ring (4) is fixedly connected to the inner end of the window cover (1) and clamps the explosion-proof glass (3); The indicator light circuit board (5) is fixed on the clamping ring (4); an indicator light (5-1) is provided on the indicator light circuit board (5) on the side facing the explosion-proof glass (3); and the indicator light (5-1) is located inside the clamping ring (4).

2. The indicator light installation structure according to claim 1, characterized in that: The window cover (1) is installed on the box body of the power box, the outer wall surface of the box body of the power box is circumferentially welded and fixed to the window cover (1), and the inner wall surface of the box body of the power box is circumferentially welded and fixed to the window cover (1); Alternatively, the window cover (1) is installed on the box door of the power box, the outer wall surface of the box door of the power box is circumferentially welded and fixed to the window cover (1), and the inner wall surface of the box door of the power box is circumferentially welded and fixed to the window cover (1).

3. The indicator light installation structure according to claim 2, characterized in that: The outer end of the window frame (1) is provided with a retaining ring (1-4) and is circumferentially welded and fixed to the outer wall surface of the box body or the outer wall surface of the box door of the power box through the retaining ring (1-4).

4. An indicator light installation structure according to any one of claims 1 to 3, characterized in that: The sealing ring (2) is made of copper material.

5. The indicator light installation structure according to claim 4, characterized in that: The sealing ring (2) has a thickness of 2-3 mm.

6. An indicator light installation structure according to any one of claims 1 to 3, characterized in that: The window cover (1) is made of steel or aluminum alloy and has a wall thickness of 5-10 mm.

7. The indicator light installation structure according to claim 1, characterized in that: The explosion-proof glass (3) has a thickness of 8-15 mm.

8. An indicator light installation structure according to any one of claims 1 to 3, characterized in that: The clamping ring (4) is made of steel or aluminum alloy and has a wall thickness of 5-10 mm.

9. A power supply box, characterized in that: An indicator light installation structure according to any one of claims 1 to 8.

Images