Large-space post-explosion detection device

Abstract

The present invention discloses a post-explosion detection device for large spaces, which relates to the technical field of explosion experiment detection. It includes an impact protection plug, a protection outer tube, a bearing inner tube, and an execution control box. A hydraulic push rod is installed in the execution control box. The present invention designs a protection device structure mainly composed of an impact protection plug, a protection outer tube, and a bearing inner tube. The present invention (long-tube multi-stage protection device) can effectively protect the detection sensor under the condition of ultra-large equivalent explosion. The present invention designs a detection sensor transportation mechanism mainly composed of a fixed guide rail, a sliding guide rail, a first steel wire rope, a second steel wire rope, a slider, a bearing slide plate, an electric winch, and a hydraulic push rod. The transportation execution mechanism is located at the rear end of the device, avoiding the influence of the explosion effect, and can effectively ensure the survival of the transportation mechanism. At the same time, the transportation mechanism is simple and reliable in operation. After the channel is opened, the detection sensor can be transported to the front end of the secondary guide rail and enter the post-explosion space to carry out detection tasks.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion experiment detection, specifically a post-explosion detection device for a large space. Background Art

[0002] In some large-scale explosion tests in enclosed spaces, it is necessary to obtain the internal scene and relevant environmental parameters of the space after the explosion, so as to complete the evaluation of explosion effectiveness, etc. During the explosion instant, strong shocks and high-temperature and high-pressure gases are generated. Ordinary scene observation devices such as cameras and sensors are difficult to survive under such conditions and be able to complete the acquisition of the scene, resulting in the inability of experimenters to obtain the post-explosion scene and relevant environmental parameters in a timely manner. For this reason, a post-explosion detection device pre-set in a large space is proposed, which can isolate and protect the detection sensor, and after the explosion, the detection sensor is sent into the explosion space through a transmission mechanism, so as to obtain the post-explosion space scene and environmental parameters. Summary of the Invention

[0003] The purpose of the present invention is to provide a post-explosion detection device for a large space to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A post-explosion detection device for a large space, including an impact protection plug, a protection outer tube, a bearing inner tube and an execution control box. A hydraulic push rod is installed in the execution control box. The front end of the hydraulic push rod is installed with a hydraulic push rod head. The front end of the hydraulic push rod head is installed with a push rod tail. A push rod is installed in the front part of the push rod tail. The bearing inner tube is arranged inside the protection outer tube. The rear end of the bearing inner tube is connected to the front end of the push rod. A fixed guide rail is installed at the lower end inside the bearing inner tube. A slider is slidably arranged on the fixed guide rail. A sliding guide rail is installed on the slider. A bearing slide plate is slidably arranged on the sliding guide rail. A first steel wire rope is arranged on the fixed guide rail. One end of the first steel wire rope is fixed on the slider, and the other end bypasses a first fixed pulley installed at the front end of the fixed guide rail and is fixed on an electric winch inside the execution control box. The front end of the bearing slide plate is connected to a second steel wire rope. The second steel wire rope is wound around a second fixed pulley at the front end of the sliding guide rail, and the other end of the second steel wire rope is fixedly connected to the push rod tail. The impact protection plug is installed at the front end of the protection outer tube.

[0006] As a further solution of the present invention: Universal ball bearings are evenly distributed on the outer cylindrical surface of the bearing inner tube.

[0007] As a further solution of the present invention: The front end face of the impact protection plug is designed as a smooth arc surface.

[0008] As a further solution of the present invention: A detection sensor is installed on the bearing slide plate.

[0009] As a further solution of the present invention: a plurality of sealing rings are installed at the tail of the impact protection plug, and the tail of the impact protection plug is matched with the inner ring of the front end of the protection outer tube through the sealing rings to form a multi-stage seal.

[0010] As a further solution of the present invention: the detection sensor is initially located at the tail of the protection outer tube.

[0011] As a further solution of the present invention: a corrugated pipe is installed between the tail of the protection outer tube and the execution control box, and the push rod, the push rod tail and the hydraulic push rod head are all arranged inside the corrugated pipe.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The present invention designs a protection device structure mainly composed of an impact protection plug, a protection outer tube and a bearing inner tube. The present invention (long-tube multi-stage protection device) can effectively protect the detection sensor under the condition of an ultra-large equivalent explosion.

[0014] The present invention designs a detection sensor conveying mechanism mainly composed of a fixed guide rail, a sliding guide rail, a first steel wire rope, a second steel wire rope, a slider, a bearing slide plate, an electric winch and a hydraulic push rod. The conveying execution mechanism is located at the rearmost end of the device, avoiding the influence of the explosion effect, effectively ensuring the survival of the conveying mechanism, and at the same time, the conveying mechanism has simple and reliable actions, so that after the channel is opened, the detection sensor can be conveyed to the forefront of the secondary guide rail and enter the post-explosion space to carry out detection tasks.

[0015] The long-distance movement of the detection device of the present invention can be realized only by the rotation of the winch. In addition, by designing reasonable lengths of the protection device pipeline and the track, fixed-point detection within a certain length range can be realized. Brief Description of the Drawings

[0016] Figure 1 It is the front view of the present invention.

[0017] Figure 2 For the present invention Figure 1 The sectional view of the structure in the A_A direction.

[0018] Figure 3 For the present invention Figure 2 The partial structure schematic diagram.

[0019] Figure 4 For the present invention Figure 2 The enlarged view of the structure at B.

[0020] 1. Impact protection plug; 2. Protective outer tube; 3. Load-bearing inner tube; 4. Fixed guide rail; 5. Sliding guide rail; 6. First fixed pulley; 7. Second fixed pulley; 8. Slide block; 9. Load-bearing slide plate; 10. Push rod; 11. Push rod tail; 12. Hydraulic push rod head; 13. Execution control box; 14. Bellows; 15. Hydraulic push rod; 16. Electric winch; 17. First steel wire rope; 18. Second steel wire rope; 19. Detection sensor; 20. Sealing ring; 21. Universal ball. Detailed implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0022] Please refer to Figures 1-3, in the embodiment of the present invention, a large-space post-explosion detection device includes an impact protection plug 1, a protection outer tube 2, a load-bearing inner tube 3, and an execution control box 13. A hydraulic push rod 15 is installed in the execution control box 13. A hydraulic push rod head 12 is installed at the front end of the hydraulic push rod 15. A push rod tail 11 is installed at the front end of the hydraulic push rod head 12. A push rod 10 is installed at the front part of the push rod tail 11. The load-bearing inner tube 3 is arranged inside the protection outer tube 2. The rear end of the load-bearing inner tube 3 is connected to the front end of the push rod 10. A fixed guide rail 4 is installed at the lower end inside the load-bearing inner tube 3. A slider 8 is slidably arranged on the fixed guide rail 4. A sliding guide rail 5 is installed on the slider 8. A load-bearing slide plate 9 is slidably arranged on the sliding guide rail 5. A first steel wire rope 17 is arranged on the fixed guide rail 4. One end of the first steel wire rope 17 is fixed on the slider 8, and the other end bypasses a first fixed pulley 6 installed at the front end of the fixed guide rail 4 and is fixed on an electric winch 16 inside the execution control box 13. The front end of the load-bearing slide plate 9 is connected to a second steel wire rope 18. The second steel wire rope 18 is wound around a second fixed pulley 7 at the front end of the sliding guide rail 5, and the other end of the second steel wire rope 18 is fixedly connected to the push rod tail 11. A detection sensor 19 is installed on the load-bearing slide plate 9. In the initial state, the detection sensor 19 is located at the tail of the protection outer tube 2, with multi-stage sealing of the impact protection plug 1 at the front end and a relatively long distance from the explosion space. There is also a load-bearing inner tube 3 and two-stage guide rails for transition connection with the protection outer tube 2, which can effectively avoid the high temperature and impact generated during the explosion. Universal ball bearings 21 are evenly distributed on the outer cylindrical surface of the load-bearing inner tube 3. The setting of the universal ball bearings 21 enables the load-bearing inner tube 3 to slide smoothly inside the protection outer tube 2. A corrugated pipe 14 is installed between the tail of the protection outer tube 2 and the execution control box 13. The push rod 10, the push rod tail 11, and the hydraulic push rod head 12 are all arranged inside the corrugated pipe 14. The corrugated pipe 14 can seal the rear end of the protection outer tube 2, playing a role in dust prevention and preventing accidental contact by personnel. In this embodiment, through a sensor transportation mechanism mainly composed of a fixed guide rail 4, a sliding guide rail 5, a first steel wire rope 17, a second steel wire rope 18, a slider 8, a load-bearing slide plate 9, an electric winch 16, and a hydraulic push rod 15, the transportation execution mechanism is located at the very end of the device, avoiding the influence of the explosion effect, effectively ensuring the survival of the transportation mechanism. At the same time, the transportation mechanism is simple and reliable in operation. After the channel is opened, the detection sensor 19 can be transported to the very front end of the secondary guide rail and enter the post-explosion space to carry out detection tasks. In addition, by designing reasonable lengths for the protection device pipeline and the track, fixed-point detection within a certain length range can be achieved. Embodiment 2

[0023] Please refer to Figure 1 and Figure 4An impact protection plug 1 is installed at the front end of the protective outer tube 2. The front end surface of the impact protection plug 1 is designed to be a smooth arc surface. This design can effectively weaken the impact of fragments generated by the explosion. A plurality of sealing rings 20 are installed at the tail of the impact protection plug 1, and the tail of the impact protection plug 1 cooperates with the inner ring of the front end of the protective outer tube 2 through the sealing ring 20 to form a multi-stage seal. The high-temperature and high-pressure gas generated during the explosion is effectively isolated through the multi-stage seal. In this embodiment, through the protection device structure composed of the impact protection plug 1, the protective outer tube 2 and the load-bearing inner tube 3, the present invention (long tube type multi-stage protection device) can effectively realize the protection of the detection sensor 19 under the condition of super-large equivalent explosion.

[0024] This detection device was used in a certain explosion experiment and successfully obtained environmental parameters and image data after the explosion.

[0025] The working principle of the present invention is:

[0026] First, the device is pre-placed in a through hole extending outward from the explosion space. After a period of time after the explosion, the hydraulic push rod 15 is first started. When the hydraulic push rod 15 is extended, the push rod 10 pushes the load-bearing inner tube 3 forward, and the load-bearing inner tube 3 pushes out the impact protection plug 1 to form a channel between the protection device and the post-explosion space. Then the electric winch 16 is driven, and the electric winch 16 reels the first steel wire rope 17. The first steel wire rope 17 will pull the slider 8 to slide forward along the fixed guide rail 4, and the slider 8 drives the sliding guide rail 5 to move forward, and finally the sliding guide rail 5 is fully extended. At the same time, the load-bearing slide plate 9 installed on the sliding guide rail 5 will slide forward along the sliding guide rail 5, and the load-bearing slide plate 9 moves to the front end of the sliding guide rail 5, and then the detection sensor 19 is sent into the explosion space through the load-bearing slide plate 9 to obtain the internal environment scene and parameters after the explosion, so that the detection device moves into the explosion space to complete the detection task.

[0027] The original technical solution of the present invention:

[0028] The present invention is suitable for post-explosion environmental parameter measurement and scene observation in large-space explosion test experiments. In view of the strong impact and high temperature and high pressure environment of the explosion, a large-space pre-placed post-explosion detection device is proposed. The device is first pre-placed in a through hole extending outward from the explosion space, and can protect the detection sensor when the explosion occurs. After the explosion, the detection sensor is sent into the explosion space through a double-layer guide rail component transmission mechanism to obtain the internal environment scene and parameters after the explosion. The protection of the sensor during the explosion and the transmission of the sensor after the explosion are solved.

[0029] The working principle of the present invention is as follows: Figures 1-4As shown in the figure, the large-space pre-set post-explosion detection device consists of a front-end protection device, an intermediate connecting piece, and an execution control box. The front-end protection device is composed of an impact protection plug, a protection outer tube, a load-bearing inner tube, and a double-layer guide rail component; the tail of the impact protection plug is fitted with the inner ring of the front end of the protection outer tube through multiple sealing rings to form a multi-stage seal, effectively isolating the high-temperature and high-pressure gas generated during the explosion. In addition, the front end face of the impact protection plug is designed as a smooth arc surface, which can effectively weaken the impact of the fragments generated by the explosion; the load-bearing inner tube is nested inside the protection outer tube, and universal ball bearings are evenly distributed on the outer cylindrical surface of the load-bearing inner tube, enabling the load-bearing inner tube to slide smoothly inside the protection outer tube; the rear end of the load-bearing inner tube is connected to the push rod connecting piece at the connection part, and the tail of the push rod is connected to the push rod head of the electro-hydraulic push rod mechanism inside the execution control box. By driving the electro-hydraulic push rod mechanism, the load-bearing inner tube can move forward to push out the impact protection plug; the double-layer guide rail component is composed of a fixed guide rail and a sliding guide rail. The fixed guide rail is fixed at the lower end of the load-bearing inner tube, and the sliding guide rail is fixedly connected to a slider that can slide inside the fixed guide rail. One end of the 1# steel wire rope is fixed on the slider of the fixed guide rail, and the other end bypasses the fixed pulley at the front end of the fixed guide rail and is fixed on the electric winch inside the execution control box; the load-bearing slide plate can slide inside the sliding guide rail. One end of the 2# steel wire rope is fixed on the load-bearing slide plate, and the other end bypasses the fixed slide rod at the front end of the sliding guide rail and is fixed on the push rod at the connection part as the fixed end; by driving the electric winch, the sliding guide rail can move forward on the fixed guide rail, and at the same time, the load-bearing slide plate can also slide forward inside the sliding guide rail, finally making the sliding guide rail fully extend, and the load-bearing slide plate move to the front end of the sliding guide rail; the detection device is placed on the load-bearing slide plate and can enter the post-explosion space together with the load-bearing slide plate to perform the detection operation task. The detection sensor is initially placed at the tail of the front-end protection tube device. There is a multi-stage seal of the impact protection plug at the front end, and the distance from the explosion space is relatively long. There is also a load-bearing inner tube and two-stage guide rails connecting and transitioning between it and the protection outer tube, which can effectively avoid the high temperature and impact generated during the explosion. After a period of time after the explosion, first start the electro-hydraulic push rod to push out the impact protection plug to form a channel between the protection device and the post-explosion space, and then drive the electric winch to move the detection device into the explosion space to complete the detection task. This detection device was applied in a certain explosion experiment and successfully obtained the environmental parameters and image data after the explosion.

[0030] Technical advantages of the present invention: 1. The structure of the protection device is reasonable and reliable. The long-tube (the tube length in this example is 4 meters) multi-stage protection device can effectively protect the detection sensor under the condition of ultra-large equivalent explosion. 2. The motion execution mechanism is located at the last end of the device, avoiding the influence of the explosion effect, which can effectively ensure the survival of the motion mechanism. At the same time, the motion mechanism is simple and reliable. 3. The long-distance movement of the detection device can be achieved only by the rotation of the winch. In addition, by designing the reasonable lengths of the protection device pipeline and the track, fixed-point detection within a certain length range can be achieved.

[0031] The core protection points of this patent are as follows: 1. A reasonable protective device structure is designed. The long-tube multi-stage protective device can effectively protect the detection sensor under the condition of an explosion with an extremely large equivalent. 2. A reasonable channel opening mechanism is designed to smoothly open the channel between the explosion space and the protective device at the appropriate time. 3. A reasonable detection sensor transportation mechanism is designed so that after the channel is opened, the detection sensor can be transported to the forefront of the secondary guide rail and enter the post-explosion space to carry out detection tasks.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A post-explosion detection device for large spaces, comprising an impact protection plug (1), a protective outer tube (2), a load-bearing inner tube (3) and an execution control box (13), characterized in that: Inside the execution control box (13), a hydraulic push rod (15) is installed. At the front end of the hydraulic push rod (15), a hydraulic push rod head (12) is installed. At the front end of the hydraulic push rod head (12), a push rod tail (11) is installed. At the front part of the push rod tail (11), a push rod (10) is installed. Inside the protective outer tube (2), a load-bearing inner tube (3) is arranged. The rear end of the load-bearing inner tube (3) is connected to the front end of the push rod (10). At the lower end inside the load-bearing inner tube (3), a fixed guide rail (4) is installed. On the fixed guide rail (4), a slider (8) is slidably arranged. On the slider (8), a sliding guide rail (5) is installed. On the sliding guide rail (5), a load-bearing sliding plate (9) is slidably arranged. On the fixed guide rail (4), a first steel wire rope (17) is arranged. One end of the first steel wire rope (17) is fixed on the slider (8), and the other end bypasses a first fixed pulley (6) installed at the front end of the fixed guide rail (4) and is fixed on an electric winch (16) inside the execution control box (13). The front end of the load-bearing sliding plate (9) is connected to a second steel wire rope (18). The second steel wire rope (18) is wound around a second fixed pulley (7) at the front end of the sliding guide rail (5), and the other end of the second steel wire rope (18) is fixedly connected to the push rod tail (11). At the front end of the protective outer tube (2), an impact protection plug (1) is installed.

2. The large-space post-explosion detection device according to claim 1, characterized in that: Universal balls (21) are evenly distributed on the outer cylindrical surface of the load-bearing inner tube (3).

3. The large-space post-explosion detection device according to claim 1, characterized in that: The front end face of the impact protection plug (1) is designed as a smooth arc surface.

4. The large-space post-explosion detection device according to claim 1, characterized in that: A detection sensor (19) is installed on the load-bearing sliding plate (9).

5. The large-space post-explosion detection device according to claim 1, wherein: A plurality of sealing rings (20) are installed at the tail of the impact protection plug (1), and the tail of the impact protection plug (1) forms a multi-stage seal with the inner ring at the front end of the protective outer tube (2) through the sealing rings (20).

6. The large-space post-explosion detection device according to claim 4, wherein: In the initial state, the detection sensor (19) is located at the tail of the protective outer tube (2).

7. The large-space post-explosion detection device according to claim 1, wherein: A corrugated pipe (14) is installed between the tail of the protective outer tube (2) and the execution control box (13). The push rod (10), the push rod tail (11), and the hydraulic push rod head (12) are all arranged inside the corrugated pipe (14).

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