Explosion-proof device

Abstract

The utility model belongs to the technical field of petrochemical engineering, and particularly relates to an explosion-proof device which comprises a mounting plate, a top plate is connected to the mounting plate in a clamped mode, an explosion-proof instrument shell is arranged above the mounting plate, a frame plate is fixedly connected to the outer side of the explosion-proof instrument shell, a fixing rod is fixedly connected to the mounting plate, and the fixing rod is fixedly connected to the mounting plate. The fixing rods are slidably connected with the frame plate, the outer walls of the fixing rods are sleeved with first springs, and the front sliding grooves are slidably connected with protection plates used for protecting the glass plate. The fixing rod is slidably connected with the frame plate and is supported by the first spring, impact on the explosion-proof instrument shell is buffered, meanwhile, the protection plate can slide on the front sliding groove, the protection frame slides on the rear sliding groove, the installation position of the glass plate and the key can be protected, the glass plate is prevented from being broken after impact, and the service life of the explosion-proof instrument shell is prolonged. And when the button is mistakenly touched, the device can ensure the protection effect on the instrument equipment while ensuring regulation and observation on the instrument equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of petrochemical industry, and specifically relates to an explosion-proof device. Background Art

[0002] The explosion-proof design of petrochemical instruments is a very important aspect, because in the petrochemical industry, instruments may need to operate in dangerous environments such as flammable gas, steam or dust. The instruments usually use explosion-proof shells, which can prevent external flammable gas or dust from entering the instrument, and can also prevent sparks or high temperatures inside the instrument from causing explosions in the surrounding environment.

[0003] Existing explosion-proof instruments protect the inside of the instrument by using a thicker instrument casing. In order to facilitate the staff to directly observe the displayed data, it is usually necessary to install a glass plate on the protective casing to facilitate viewing of the instrument data. At the same time, it is necessary to install buttons for adjusting the instrument. However, since the glass plate is directly exposed to the outside world, when the explosion-proof casing is subjected to accidental impacts such as explosions, there is a risk that the glass plate will break, causing damage to the instrument by the impact. At the same time, the buttons may be accidentally touched, affecting the normal use of the instrument. Utility Model Content

[0004] The utility model provides an explosion-proof device, which has the characteristics of solving the problems that when subjected to an unexpected impact, a glass plate of an explosion-proof housing may be broken, an instrument may be damaged by the impact, and a key may be accidentally touched.

[0005] The utility model provides the following technical scheme: it comprises a mounting plate, a top plate is snap-connected on the mounting plate, an explosion-proof instrument housing is arranged above the mounting plate, a frame plate is fixedly connected to the outside of the explosion-proof instrument housing, a fixing rod is fixedly connected to the mounting plate, the fixing rod is slidably connected to the frame plate, a first spring is sleeved on the outer wall of the fixing rod, a housing cover is arranged on the top of the explosion-proof instrument housing, a front slide groove is provided on the top of the housing cover, a protective plate for protecting a glass plate is slidably connected to the front slide groove, a rear slide groove is provided on the housing cover, a protective frame for protecting control buttons is slidably connected to the rear slide groove, and a support block for limiting the protective frame is fixedly connected to the top of the housing cover.

[0006] A slot is provided at the connection between the mounting plate and the top plate, and a connecting block matching the slot is fixedly connected to the bottom end of the top plate.

[0007] Among them, the top end of the fixing rod is fixedly connected to a limiting plate, the inner wall of the top plate is fixedly connected to a connecting plate, the connecting plate and the mounting plate are provided with corresponding connecting grooves, and the connecting grooves are connected by clamping blocks.

[0008] Among them, a front limit block is fixedly connected at the connection between the front slide groove and the protective plate, a rear limit block is fixedly connected at the connection between the protective frame and the rear slide groove, the protective plate fits with the outer shell cover, and a groove for making way for the control buttons is opened at the bottom of the protective frame.

[0009] Among them, a fixing plate is fixedly connected to the top of the outer shell cover, a push rod is slidably connected to the fixing plate, one end of the push rod is fixedly connected to the protective frame, one end of the push rod is fixedly connected to the support plate, and a second spring is sleeved on the outer wall of the push rod.

[0010] The beneficial effects of the utility model are as follows: the fixed rod is slidably connected to the frame plate and supported by the first spring, so that the impact on the explosion-proof instrument housing is buffered, and at the same time, the protective plate can slide on the front slide groove, and the protective frame slides on the rear slide groove, so that it can protect the glass plate installation position and buttons, avoiding the glass plate from breaking and the buttons from being accidentally touched after being impacted, so that the device can ensure the protection effect of the instrument equipment while ensuring the regulation and observation of the instrument equipment.

[0011] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0013] Figure 2 It is a three-dimensional structural schematic diagram of the explosion-proof instrument housing in the utility model;

[0014] Figure 3 It is a three-dimensional structural schematic diagram of the outer shell cover in the utility model;

[0015] Figure 4 For this utility model Figure 2 A is an enlarged schematic diagram.

[0016] In the figure: 1. mounting plate; 11. top plate; 12. slot; 13. block; 14. connecting plate; 141. connecting slot; 15. block; 2. explosion-proof instrument housing; 21. housing cover; 22. frame plate; 23. fixing rod; 231. limit plate; 24. first spring; 3. front slide; 31. protective plate; 311. front limit block; 32. rear slide; 33. protective frame; 331. rear limit block; 34. support block; 35. push rod; 351. second spring; 352. support plate; 36. fixing plate. DETAILED DESCRIPTION

[0017] See also Figure 1-Figure 4The utility model provides the following technical solutions: it includes a mounting plate 1, a top plate 11 is snap-connected to the mounting plate 1, an explosion-proof instrument housing 2 is arranged above the mounting plate 1, a frame plate 22 is fixedly connected to the outside of the explosion-proof instrument housing 2, a fixing rod 23 is fixedly connected to the mounting plate 1, the fixing rod 23 is slidably connected to the frame plate 22, a first spring 24 is sleeved on the outer wall of the fixing rod 23, a housing cover 21 is arranged on the top of the explosion-proof instrument housing 2, a front slide groove 3 is opened on the top of the housing cover 21, a protective plate 31 for protecting the glass plate is slidably connected to the front slide groove 3, a rear slide groove 32 is opened on the housing cover 21, a protective frame 33 for protecting the control buttons is slidably connected to the rear slide groove 32, and a support block 34 for limiting the protective frame 33 is fixedly connected to the top of the housing cover 21.

[0018] In this embodiment: the mounting plate 1 is a carrier of the bearing device, and the mounting plate 1 provides a mounting surface for the explosion-proof instrument housing 2. The frame plate 22 fixedly connected to the outside of the explosion-proof instrument housing 2 corresponds to the fixed rod 23 fixedly connected to the mounting plate 1, and the fixed rod 23 passes through the frame plate 22, so that the frame plate 22 slides on the fixed rod 23, so that the explosion-proof instrument housing 2 can slide up and down between the fixed rods 23, and the frame plate 22 is supported by the first spring 24 set on the outer wall of the fixed rod 23, so that the explosion-proof instrument housing 2 can be supported and has a certain distance from the surface of the mounting plate 1, so that when the explosion-proof instrument housing 2 is impacted by the outside, the explosion-proof instrument housing 2 is pressed by the first spring 24. The elastic force of the spring 24 enables it to effectively unload the impact force, avoid the impact force on the explosion-proof instrument housing 2 when sudden situations such as combustion and explosion occur in the outside world, thereby protecting the explosion-proof instrument housing 2 and increasing the safety of the instrument equipment in the explosion-proof instrument housing 2. At the same time, the shell cover 21 installed on the explosion-proof instrument housing 2 can seal the top of the explosion-proof instrument housing 2. The instrument equipment is installed in the explosion-proof instrument housing 2 so that it can be protected by the explosion-proof instrument housing 2 and the shell cover 21. The shell cover 21 is installed with a glass plate to facilitate observation of data information on the instrument equipment. When the explosion-proof instrument housing 2 is impacted by unexpected risks such as explosions in the outside world, the explosion-proof instrument The thicker shell of the meter shell 2 and the shell cover 21 can protect the petrochemical instrument. In order to facilitate the observation of the petrochemical instrument, the installation of the glass plate will directly affect the overall protection effect of the shell cover 21 on the instrument, which will cause the glass plate with poor bearing capacity to be damaged when there is an accidental risk such as explosion in the external environment of the instrument, which is not conducive to the safety protection effect of the chemical instrument equipment. When an accidental risk occurs, when the chemical instrument is damaged, it is difficult to obtain its detection data, which is not conducive to the staff's ability to judge the factors causing the accident based on the chemical instrument data, and is not conducive to the safe operation of chemical production. At this time, the protective plate 31 can be slid on the front slide groove 3 to make the protective plate 31 is on the glass plate and supported on the outer shell cover 21 to protect the glass plate. When it is necessary to directly view the instrument data, the protective plate 31 can be slid to be misaligned with the glass plate so as to view the instrument. At the same time, the protective frame 33 slidably connected to the rear slide groove 32 can protect the buttons for controlling the instrument equipment to prevent the instrument buttons from being impacted and causing accidental adjustment of the instrument, which is not conducive to the safe use of the instrument equipment. At the same time, when it is necessary to use the buttons to adjust the equipment, the protective frame 33 can be slid to be misaligned with the buttons to facilitate adjustment, so that the device can ensure the protection of the instrument equipment while ensuring the adjustment and observation of the instrument equipment.

[0019] A card slot 12 is provided at the connection between the mounting plate 1 and the top plate 11, and a connecting block 13 matching the card slot 12 is fixedly connected to the bottom end of the top plate 11; the card slot 12 provided at the connection between the mounting plate 1 and the top plate 11 is used to limit the connecting block 13 fixedly connected to the bottom end of the mounting plate 1, so that the top plate 11 can be installed on the mounting plate 1 to increase the protective effect of the explosion-proof instrument housing 2 on the equipment instruments, and at the same time can be separated from the top plate 11 to avoid affecting the control of the instruments.

[0020] The top of the fixing rod 23 is fixedly connected to a limiting plate 231, and the inner wall of the top plate 11 is fixedly connected to a connecting plate 14, and corresponding connecting grooves 141 are provided on the connecting plate 14 and the mounting plate 1, and the connecting grooves 141 are connected by a clamping block 15; the limiting plate 231 can limit the top of the frame plate 22, so that the frame plate 22 slides on the fixing rod 23 while preventing the frame plate 22 from being supported by the first spring 24 and separating from the fixing rod 23, thereby ensuring the protective effect of the first spring 24 on the explosion-proof instrument housing 2, and after the top plate 11 is engaged on the mounting plate 1, the connecting groove 141 provided on the connecting plate 14 can correspond to the connecting groove 141 provided on the mounting plate 1, so that the clamping block 15 connects the connecting grooves 141 to limit the position of the top plate 11.

[0021] A front limit block 311 is fixedly connected at the connection between the front slide groove 3 and the protective plate 31, and a rear limit block 331 is fixedly connected at the connection between the protective frame 33 and the rear slide groove 32. The protective plate 31 fits well with the outer shell cover 21, and a groove for making way for the control buttons is provided at the bottom of the protective frame 33; the front limit block 311 fixedly connected at the connection between the front slide groove 3 and the protective plate 31 is used to limit the protective plate 31 in the front slide groove 3, thereby ensuring that the protective plate 31 will not separate from the front slide groove 3, so that the protective plate 31 protects the glass plate, and the rear limit block 331 is used to limit the protective frame 33 in the rear slide groove 32, ensuring that the protective frame 33 protects the buttons.

[0022] A fixing plate 36 is fixedly connected to the top of the outer shell cover 21, and a push rod 35 is slidably connected to the fixing plate 36. One end of the push rod 35 is fixedly connected to the protective frame 33, and one end of the push rod 35 is fixedly connected to a support plate 352. The outer wall of the push rod 35 is sleeved with a second spring 351; the fixing plate 36 fixedly connected to the top of the outer shell cover 21 is used to install the push rod 35, so that the push rod 35 slides on the fixing plate 36, and the support plate 352 fixedly connected to one end of the push rod 35 is used to install the second spring 351. Both ends of the second spring 351 are fixed on the fixing plate 36 and the support plate 352, so that the second spring 351 can pull the support plate 352 to ensure that the protective frame 33 can be pushed, ensure that it is above the key, supported on the support block 34, corresponding to the key, thereby ensuring that the key is protected.

[0023] The working principle and use process of the utility model are as follows: the chemical instrument is installed inside the explosion-proof instrument housing 2 and the housing cover 21, and the explosion-proof instrument housing 2 is protected in cooperation with the top plate 11. When the explosion-proof instrument housing 2 is impacted, it can be supported by the first spring 24 sleeved on the outer wall of the fixing rod 23 through the frame plate 22. The elastic force of the first spring 24 can effectively unload the impact force, avoid sudden situations such as combustion and explosion in the outside world, and can reduce the impact force on the explosion-proof instrument housing 2, thereby protecting the explosion-proof instrument housing 2. At the same time, the protective plate 31 can be slid on the front slide groove 3, so that the protective plate 31 is on the glass plate and supported on the The glass plate is protected on the outer shell cover 21, and when it is necessary to view the instrument data directly, the protective plate 31 can be slid to be misaligned with the glass plate so as to view the instrument. At the same time, the protective frame 33 slidably connected to the rear slide groove 32 can protect the buttons for controlling the instrument equipment to prevent the instrument buttons from being impacted and causing accidental adjustment of the instrument, which is not conducive to the safe use of the instrument equipment. At the same time, when it is necessary to use the buttons to adjust the equipment, the protective frame 33 can be slid to be misaligned with the buttons to facilitate adjustment, so that the device can ensure the protection of the instrument equipment while ensuring the adjustment and observation of the instrument equipment.

Claims

1. An explosion-proof device, comprising a mounting plate (1), characterized in that: The mounting plate (1) is snap-connected with a top plate (11), an explosion-proof instrument housing (2) is arranged above the mounting plate (1), a frame plate (22) is fixedly connected to the outside of the explosion-proof instrument housing (2), a fixing rod (23) is fixedly connected to the mounting plate (1), the fixing rod (23) is slidably connected to the frame plate (22), a first spring (24) is sleeved on the outer wall of the fixing rod (23), a housing cover (21) is arranged on the top of the explosion-proof instrument housing (2), a front slide groove (3) is provided on the top of the housing cover (21), a protective plate (31) for protecting a glass plate is slidably connected to the front slide groove (3), a rear slide groove (32) is provided on the housing cover (21), a protective frame (33) for protecting a control button is slidably connected to the rear slide groove (32), and a support block (34) for limiting the protective frame (33) is fixedly connected to the top of the housing cover (21).

2. An explosion-proof device according to claim 1, characterized in that: A slot (12) is provided at the connection between the mounting plate (1) and the top plate (11), and a connecting block (13) matching the slot (12) is fixedly connected to the bottom end of the top plate (11).

3. An explosion-proof device according to claim 1, characterized in that: The top end of the fixing rod (23) is fixedly connected to a limiting plate (231), the inner wall of the top plate (11) is fixedly connected to a connecting plate (14), the connecting plate (14) and the mounting plate (1) are provided with corresponding connecting grooves (141), and the connecting grooves (141) are connected via a clamping block (15).

4. An explosion-proof device according to claim 1, characterized in that: A front limit block (311) is fixedly connected at the connection between the front slide groove (3) and the protective plate (31), a rear limit block (331) is fixedly connected at the connection between the protective frame (33) and the rear slide groove (32), the protective plate (31) is fitted with the outer shell cover (21), and a groove for making way for control buttons is provided at the bottom of the protective frame (33).

5. An explosion-proof device according to claim 1, characterized in that: A fixing plate (36) is fixedly connected to the top of the outer shell cover (21), a push rod (35) is slidably connected to the fixing plate (36), one end of the push rod (35) is fixedly connected to the protective frame (33), one end of the push rod (35) is fixedly connected to a support plate (352), and a second spring (351) is sleeved on the outer wall of the push rod (35).

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