Pre-set post-explosion scene observation device

Abstract

The application discloses a post-explosion scene observation device, which comprises a protective box with an open top and a front end, a top cover is fixedly connected to the open top of the protective box through screws, an end cover is fixedly connected to the open front end of the protective box through screws, an observation chamber body is fixedly arranged on the end cover, a rotating shaft is rotatably arranged at the center of the observation chamber body, and a protective cover is fixedly connected to one end of the rotating shaft away from the protective box. The post-explosion scene observation device can overcome the strong impact and high-temperature and high-pressure environment of explosion, and is suitable for post-explosion scene observation of closed space explosion test experiment. When in use, the device is preset in an explosion space, the end cover and the observation chamber body can be protected by an image acquisition device when explosion occurs, the rotating shaft is driven to rotate by an actuator after explosion, so that the end cover is rotated and fixed at an angle, the observation port is aligned with the corresponding observation channel, and the internal scene of the explosion space after explosion can be obtained by the image acquisition device.

Description

TECHNICAL FIELD

[0001] The present application relates to the explosion experiment detection technology, specifically is preset explosion after scene observation device. BACKGROUND

[0002] In certain closed space large equivalent explosion test experiment needs to obtain the scene inside the space after explosion, thereby completing the explosion efficiency evaluation, etc., the strong impact and high temperature and high pressure gas will be produced in the explosion moment, the ordinary camera and other scene observation device is difficult to survive and complete the scene acquisition under such conditions. For this purpose, we propose a kind of preset explosion scene observation device, the device can isolate and protect the camera, and after explosion, the observation channel is opened through the actuator, and the environment scene is observed. SUMMARY

[0003] The present application aims to provide a preset explosion scene observation device to solve the problems raised in the background art.

[0004] To achieve the above object, the present application provides the following technical scheme:

[0005] The preset explosion scene observation device comprises a protective box with a top opening and a front end opening, a top cover is fixedly connected to the top opening of the protective box by screws, an end cover is fixedly connected to the front end opening of the protective box by screws, and an observation chamber body is fixedly provided on the end cover, a rotating shaft is rotatably provided at the center of the observation chamber body, a protective cover is fixedly connected to the end of the rotating shaft away from the protective box, a plurality of observation ports are provided through the end face of the protective cover, an observation channel is provided through the observation chamber body corresponding to the observation port, at least one image acquisition device is arranged in the observation channel, an actuator is arranged in the protective box, and the actuator is in transmission connection with the rotating shaft, and a plurality of wire outlet channels are provided through the outer wall of the protective box.

[0006] As a further scheme of the present application, the opening of the observation channel towards the protective cover is fixedly and sealingly connected with an observation window.

[0007] As a further scheme of the present application, the outer wall of the rotating shaft is nested with a plurality of first sealing rings, and the first sealing rings are in interference fit with the observation chamber body.

[0008] As a further scheme of the present application, the end face of the protective cover towards the observation chamber body is embedded with a plurality of second sealing rings, the observation channel, the observation port and the second sealing ring are equidistantly distributed on the same circumference with the rotating shaft as the center.

[0009] As a further scheme of the present application: the actuating mechanism comprises a rotary oil cylinder, an output shaft of the rotary oil cylinder is fixedly connected with a transmission shaft through a shaft coupling, one end of the transmission shaft is rotatably connected with the observation chamber body through a bearing seat, and the transmission shaft is fixedly connected with the rotary shaft through screws.

[0010] As a further scheme of the present application: the protective box is provided with a threading pipeline, the threading pipeline has a plurality of wire inlet ports, and the plurality of wire inlet ports are in communication with corresponding observation channels, and the threading pipeline has at least one wire outlet port in communication with a wire outlet channel.

[0011] Compared with the prior art, the present application has the following beneficial effects:

[0012] The preset post-explosion scene observation device can overcome the strong impact and high temperature and high pressure environment of explosion, and is suitable for post-explosion scene observation of closed space explosion test experiment.

[0013] The present application has the advantages of reasonable and reliable structure, considering the protection structure of sensors and other electronic components and power communication cables under impact and high temperature and high pressure gas, which can effectively protect the image acquisition device under large equivalent explosion conditions, and the rotation opening structure is impact-resistant and has high protection level, the movement mechanism is simple and reliable, and the hydraulic drive equipment (hydraulic station) driving the rotary oil cylinder is placed at the rear through a hydraulic pipeline, which can directly avoid the influence of explosion impact. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the preset post-explosion scene observation device.

[0015] Figure 2 It is a top view and sectional structural schematic view of the preset post-explosion scene observation device.

[0016] Figure 3 It is a front view and sectional structural schematic view of the preset post-explosion scene observation device.

[0017] Figure 4 It is a general position layout schematic view of the preset post-explosion scene observation device, hydraulic station and remote measurement and control point.

[0018] Wherein, the protective box 1, the top cover 2, the observation chamber main body 3, the end cover 4, the observation channel 5, the observation window 6, the protective cover 7, the rotating shaft 8, the wire outlet channel 9, the bearing seat 10, the first sealing ring 11, the observation port 12, the second sealing ring 13, the support 14, the rotary oil cylinder 15, the shaft coupling 16, the transmission shaft 17, the wire passing pipeline 18. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0020] Please refer to Figures 1-3 In the embodiments of the present application, the preset post-explosion scene observation device comprises a protective box 1 with a top opening and a front end opening. A top cover 2 is fixedly connected to the top opening of the protective box 1 by screws. An end cover 4 is fixedly connected to the front end opening of the protective box 1 by screws. Specifically, sealing pads are arranged between the protective box 1 and the top cover 2 and the end cover 4. An observation chamber main body 3 is fixedly penetrated on the end cover 4. A rotating shaft 8 is rotatably penetrated in the center of the observation chamber main body 3. A protective cover 7 is fixedly connected to the end of the rotating shaft 8 away from the protective box 1. A plurality of observation ports 12 are formed through the end face of the protective cover 7. An observation channel 5 is formed through the observation chamber main body 3 at the corresponding position of the observation port 12. An image acquisition device is arranged in at least one observation channel 5. Different image acquisition devices can be installed in different observation channels 5 to meet different image acquisition requirements. The image acquisition device is preferably a CCD camera. The CCD camera and the inner wall of the observation channel 5 are subjected to vibration isolation and heat insulation treatment. For example, the CCD camera is covered by a flexible high-temperature-resistant material such as high-temperature-resistant sponge and aerogel felt except the lens, and then is inserted into the observation channel 5. The flexible high-temperature-resistant material is in interference fit with the observation channel 5 to position the CCD camera. The impact force during explosion does not change the shooting angle of the CCD camera in the observation channel 5. An actuating mechanism is arranged in the protective box 1 and is in transmission connection with the rotating shaft 8. A plurality of wire outlet channels 9 are formed through the outer wall of the protective box 1.

[0021] The present application can overcome the strong impact and high temperature and high pressure environment of explosion, and is suitable for post-explosion scene observation of closed space explosion test experiment, and in specific use, the device is prepositioned in the explosion space, the end cover and the observation chamber body 3 can protect the CCD camera when the explosion occurs, and after the explosion, the rotating shaft 8 is driven to rotate by the actuating mechanism to rotate and fix the end cover 4 at an angle, so that the observation port 12 is aligned with the corresponding observation channel 5, and the internal scene of the explosion space after the explosion can be obtained by the CCD camera.

[0022] In combination with the specific Figure 2 , Figure 3 In an embodiment of the present application, the opening of the observation channel 5 towards the protective cover 7 is fixedly connected with an observation window 6, and the observation window 6 is made of colorless transparent explosion-proof tempered glass, and the observation window 6 and the observation channel 5 are fixed by high-temperature-resistant sealing glue.

[0023] In combination with the specific Figure 2 In an embodiment of the present application, the outer wall of the rotating shaft 8 is nested with a plurality of first sealing rings 11, and the first sealing rings 11 are in interference fit with the observation chamber body 3, and the sealing between the rotating shaft 8 and the observation chamber body 3 can be ensured by the first sealing rings 11.

[0024] In combination with the specific Figures 1-3 In an embodiment of the present application, the end face of the protective cover 7 towards the observation chamber body 3 is embedded with a plurality of second sealing rings 13, and the observation channel 5, the observation port 12 and the second sealing ring 13 are equidistantly distributed on the same circumference with the rotating shaft 8 as the center, so that when the protective cover 7 rotates, a plurality of observation ports 12 can be aligned with the corresponding observation channels 5 at the same time, or the second sealing rings 13 can be aligned with the corresponding observation windows 6.

[0025] In combination with the specific Figure 2 , Figure 3 In an embodiment of the present application, the actuating mechanism includes a rotary oil cylinder 15, the output shaft of the rotary oil cylinder 15 is fixedly connected with a transmission shaft 17 through a shaft coupling 16, one end of the rotating shaft 8 is rotatably connected with the observation chamber body 3 through a bearing seat 10, and the rotating shaft 8 is fixedly connected with the transmission shaft 17 through screws.

[0026] As Figure 4As shown, the hydraulic drive device (hydraulic station) driving the rotary oil cylinder is placed behind the application through a hydraulic pipeline, which can directly avoid the influence of explosion shock, and the remote measurement and control point (observation point of post-explosion scene and control device layout point of the application) is also placed behind the application. The CCD camera installed in the protective box 1 is connected with the control device (controller) at the remote measurement and control point through a conductive measurement and control cable passing through a corresponding outlet channel 9 of the protective box 1. The rotary oil cylinder 15 passes through another outlet channel 9 corresponding to the rotary oil cylinder 15 and passes through the oil pipe (hydraulic pipeline) to connect the hydraulic station. The control device is also connected with the hydraulic station through a conductive control cable to control the operation of the hydraulic drive motor in the hydraulic station, drive the rotary oil cylinder 15 through the oil pump and oil pipe in the hydraulic station, and drive the rotary oil cylinder 15 through the rotary oil cylinder 15. The rotary shaft 8 and the protective cover 7 placed outside the explosion closed space can be driven by the hydraulic station, and the outlet channel 9 is sealed after passing out.

[0027] Specifically combined Figure 2 、 Figure 3 In one embodiment of the application, the protective box 1 is provided with a threading pipeline 18, the threading pipeline 18 has a plurality of inlet ports, and the plurality of inlet ports are in communication with the corresponding observation channels 5. The threading pipeline 18 has at least one outlet port in communication with the outlet channel 9.

[0028] The specific threading pipeline 18 is composed of a plurality of straight pipes, three-way pipes, corrugated pipes and hoses, and the adjacent pipe fittings are fixed by clamps to provide further protection for the line of the CCD camera in the protective box 1. When the line of the CCD camera passes out through the corresponding outlet channel 9, the outlet channel 9 also needs to be sealed.

[0029] The original technical scheme of the application is as follows:

[0030] The application is suitable for post-explosion scene observation of closed space explosion test. In view of the strong impact and high temperature and high pressure environment of explosion, a pre-set post-explosion multi-channel scene observation device is proposed. The device is first pre-set in the explosion space, and the cover can protect the CCD unit when the explosion occurs. After the explosion, the rotary cover is rotated by a fixed angle through a rotating mechanism, so that the multi-CCD unit observation channel is opened, so as to obtain the internal scene of the explosion space after the explosion.

[0031] The working principle of the application is as follows: Figures 1-4As shown, the preset explosion post-scene observation device is composed of a front protective end cover, a main body and an execution mechanism protective box. The front protective end cover is a spherical end cover, a central rotating shaft is connected with a rotary oil cylinder in the rear execution mechanism protective box through a shaft coupling; the front protective end cover and the main body end face have two-stage sealing ring protection structures, the outermost sealing ring serves as a primary sealing protection, and the main body observation passage end face and the protective end cover are provided with a secondary sealing ring; the observation through hole on the end cover is initially located in a staggered manner with the main body observation passage (in this example, the two are at an angle of 45° on the same circumference without overlapping area), which can effectively protect the main body observation window from impact when explosion occurs, and the two-stage sealing structure can effectively protect and isolate the high-temperature and high-pressure gas generated by explosion, thereby achieving a positive pressure sealing effect; after the post-explosion environment is stable, the rotary oil cylinder is driven to rotate by a certain angle (45° in this example), so that the end cover observation passage coincides with the main body observation window. The main body is uniformly provided with a plurality of observation passages, the front end face of the passage is an observation window, the observation window is made of explosion-proof tempered glass and is sealed, serving as a third sealing protection for the observation passage; the observation CCD unit is located in the observation passage, and the CCD unit is subjected to vibration isolation and heat insulation treatment; the plurality of passages can serve as a redundant backup, or can be used to place different waveband CCD units for observing different waveband information requirements, and the signal and power cable of the CCD unit enter the rear dedicated sealing protection pipeline along the passage, and the cable is further protected. The driving hydraulic oil circuit of the rotary oil cylinder is also connected to the external remote hydraulic drive station through the rear passage of the protective box; the upper end cover and the rear passage of the execution mechanism protective box are both provided with sealing structure design, and the internal structure of the box body is sealed and protected.

[0032] Technical advantages of the present application: 1. The protection device has a reasonable and reliable structure, and the protection structure of the sensor and its power communication cable under impact and high-temperature and high-pressure gas is considered, which can effectively realize the protection of the detection sensor under large equivalent explosion conditions. 2. The rotary opening mechanism is impact-resistant and has high protection level, and the movement mechanism is simple and reliable, and the starting force hydraulic pump is placed behind through a hydraulic pipeline, which can directly avoid the influence of explosion impact.

[0033] Core protection points of the present application: 1. A reasonable protection device structure is designed, which can effectively realize the protection of the detection sensor under large equivalent explosion conditions. 2. A reasonable channel rotary opening mechanism is designed, which can smoothly open the channel between the explosion space and the protection device at the appropriate time.

[0034] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A pre-set post-explosion scene observation device, characterized in that: The protective box (1) includes a top and a front opening. A top cover (2) is fixedly connected to the top opening of the protective box (1) by screws. An end cover (4) is fixedly connected to the front opening of the protective box (1) by screws, and an observation chamber body (3) is fixedly inserted through the end cover (4). A rotating shaft (8) is rotatably inserted through the center of the observation chamber body (3). A protective cover (7) is fixedly connected to the end of the rotating shaft (8) away from the protective box (1). Multiple observation ports (12) are provided through the end face of the protective cover (7). Observation ports are provided through the observation chamber body (3) at the corresponding positions of the observation ports (12). At least one of the observation channels (5) is equipped with an image acquisition device. The protective box (1) is equipped with an actuator, and the actuator is connected to the rotating shaft (8) for transmission. The actuator includes a rotary cylinder (15). The output shaft of the rotary cylinder (15) is fixedly connected to a transmission shaft (17) through a coupling (16). The end of the rotating shaft (8) facing the protective box (1) is rotatably connected to the main body of the observation chamber (3) through a bearing seat (10). The rotating shaft (8) and the transmission shaft (17) are fixedly connected by screws. The outer wall of the protective box (1) is also provided with multiple cable outlet channels (9).

2. The pre-set post-explosion scene observation device according to claim 1, characterized in that: The observation channel (5) is fixedly and sealed with an observation window (6) at the opening of the protective cover (7).

3. The pre-set post-explosion scene observation device according to claim 1, characterized in that: The outer wall of the rotating shaft (8) is nested with multiple first sealing rings (11), and the first sealing rings (11) are interference-fitted with the main body of the observation chamber (3).

4. The pre-set post-explosion scene observation device according to claim 1, characterized in that: The protective cover (7) is embedded with multiple second sealing rings (13) on the end face facing the main body (3) of the observation chamber. The observation channel (5), the observation port (12), and the second sealing rings (13) are equidistantly distributed on the same circumference with the rotating shaft (8) as the center.

5. The pre-set post-explosion scene observation device according to claim 1, characterized in that: The protective box (1) is equipped with a conduit (18), which has multiple inlets and is connected to the corresponding observation channel (5). The conduit (18) has at least one outlet that is connected to the outlet channel (9).

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