Detonator fixing device with automatic explosive ordnance disposal function

Abstract

The invention provides a detonator fixing device with an automatic explosive ordnance disposal function, which comprises an outer shell, a detonator fixing cavity for arranging a detonator is formed in the outer shell, and the bottom of the outer shell is composed of a dumping wall with a cylindrical surface structure and a supporting wall with a planar structure; a liquid containing cavity used for containing mercury and a liquid drainage cavity used for receiving the mercury are formed in the outer shell, and the liquid containing cavity and the liquid drainage cavity are communicated through a liquid drainage flow channel, an exhaust flow channel, a liquid drainage hole of the rotary valve and an exhaust hole of the rotary valve. A plug and a spring are arranged in the liquid drainage flow channel and used for adjusting and stabilizing the flow speed of mercury. After the detonator is fixed by the device, the device and the detonator are fixed in situ within a certain period of time, and the period of time is enough for operators to arrive at a safe area and detonate the detonator; if misfire happens to the detonator, after a period of time, the device can drive the detonator to automatically rotate by 90 degrees, the jet flow direction of the detonator is adjusted to be far away from the explosive from being right opposite to the explosive, and the danger to workers due to the fact that the misfire detonator is detonated at any time is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of explosive detonation auxiliary devices, relates to a detonator fixing device, and in particular to a detonator fixing device with an automatic explosion-discharging function. Background Art

[0002] Industrial explosives are widely used in agriculture, water conservancy, transportation, building materials and other industrial fields. With the increasing demand for industrial explosives in the civilian field, industrial explosives such as ammonium nitrate explosives, water-containing explosives, ammonium nitrate explosives and nitroglycerin explosives have been developed through continuous improvement, with great improvements in formulation technology, performance indicators and manufacturing processes.

[0003] Explosives need to start releasing energy under the action of appropriate external energy. Sun Guoxiang et al. reported in the literature that detonators are filled with primers and main explosives, and detonators are used to detonate various explosives. In the detonation process of industrial explosives, detonators are usually used to detonate industrial explosives.

[0004] Detonators are precision parts. They are composed of multiple components. Each component must work properly for the detonator to detonate reliably. Any slight fluctuation in the quality of the detonator will cause the detonator to misfire. Yan Qiaoling et al. reported in the literature: According to the working principle of the detonator, insufficient energy output from the ignition source or insufficient thermal sensitivity of the delay agent will cause the detonator to misfire. Therefore, there is a certain probability that the detonator will misfire.

[0005] After the detonator is detonated, a jet is formed at the energy output end of the detonator, which is used to detonate the explosive. Once the detonator misfires after the explosion signal is activated, the detonator needs to be separated from the explosive and removed. The weight of the detonator does not exceed 20 grams. Ba Pingan et al. reported in the literature that after the detonator activates the explosion signal, even if it misfires, it is still in a state where it may detonate at any time. If it is not eliminated in time, the explosive may detonate and explode at any time. In actual work, after the detonator misfires, the staff will remove the detonator. Since the detonator may detonate at any time, there are safety risks in removing the detonator. Summary of the invention

[0006] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a detonator fixing device with an automatic explosion-proof function, so as to solve the technical problem in the prior art that after the detonator misfires, a worker is required to remove the detonator, which poses a great safety risk.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0008] A detonator fixing device with automatic explosion-discharging function comprises an outer shell, a lateral side of the outer shell is provided with a detonator fixing cavity along the vertical direction, a detonator is arranged in the detonator fixing cavity, and the bottom end of the detonator is arranged on the explosive.

[0009] The side wall at the lower position on the other lateral side of the outer shell is a dumping wall, which is a partial cylindrical surface; the bottom surface of the outer shell is a supporting wall, which is a plane, and the outer bottom surface of the supporting wall is arranged on the explosive; a boss is integrally arranged on the inner bottom surface of the supporting wall, and the side wall on one lateral side of the boss is integrally connected with the inner wall of the outer shell, and a rotary valve support plate is integrally arranged on the top of the other lateral side of the boss, and the rotary valve support plate extends along the lateral direction; a rotary valve mounting block is arranged in the outer shell, and the longitudinal sides of the rotary valve mounting block are fixed on the wall surface of the outer shell, and the rotary valve mounting block is located above the rotary valve support plate.

[0010] The space enclosed by the side wall on the lateral side of the rotary valve mounting block, the inner side wall on the lateral side of the outer shell, the inner top surface on the lateral side of the outer shell, the top surface of the boss and part of the top surface of the rotary valve support plate is a liquid storage cavity, and mercury is filled in the liquid storage cavity.

[0011] The space enclosed by the rotary valve mounting block, the tilting wall, the side wall on the other side of the boss, and the bottom surface of the rotary valve support plate is a liquid discharge cavity, and the position of the liquid discharge cavity is lower than the position of the liquid storage cavity.

[0012] The gap between the bottom of the rotary valve mounting block and the rotary valve supporting plate is a liquid discharge channel; the gap between the side wall on the other lateral side of the rotary valve mounting block and the inner wall of the outer shell, and the gap between the top of the rotary valve mounting block and the inner wall of the outer shell are exhaust channels.

[0013] A rotary valve installation cavity is provided in a lateral side of the rotary valve installation block along the vertical direction, and a rotary valve body is installed in the rotary valve installation cavity; the top end of the rotary valve body extends out of the top end of the outer shell, and the bottom end of the rotary valve body contacts the rotary valve support plate; a drainage hole is provided on the bottom of the rotary valve body, and the drainage hole and the drainage channel are located in the same horizontal plane; an exhaust hole is provided on the top of the rotary valve body, and the exhaust hole and the top of the exhaust channel are located in the same horizontal plane; the drainage hole and the exhaust hole are opened in the same direction; the structure composed of the rotary valve body, the drainage hole and the exhaust hole is a rotary valve, the rotary valve body and the rotary valve installation cavity are both cylindrical structures, and the rotary valve can rotate in the rotary valve installation cavity.

[0014] When the central axis of the drainage hole is perpendicular to the central axis of the drainage channel, and the central axis of the exhaust hole and the top of the exhaust channel are perpendicular to each other, the drainage channel and the exhaust channel are completely blocked by the rotary valve body, and the liquid storage chamber and the drainage chamber are not connected.

[0015] When the central axis of the drainage hole is coaxial with the central axis of the drainage channel, and the exhaust hole is coaxial with the central axis of the top of the exhaust channel, the liquid holding chamber and the drainage chamber are connected through the drainage hole, the drainage channel, the exhaust hole and the exhaust channel.

[0016] When the liquid holding chamber and the liquid discharge chamber are behind each other, the mercury in the liquid holding chamber can flow into the liquid discharge chamber through the liquid discharge hole and the liquid discharge channel under the action of gravity, and the gas in the liquid discharge chamber can flow into the liquid holding chamber through the exhaust hole and the exhaust channel. With the flow of mercury, the center of mass of the detonator fixing device with automatic explosion disposal function gradually shifts from one lateral side to the other side. Under the action of the tilting wall, the detonator fixing device with automatic explosion disposal function gradually falls to the other lateral side, and the detonator gradually falls to the other lateral side.

[0017] The present invention also includes the following technical features:

[0018] Preferably, the pouring wall is a quarter cylinder.

[0019] Preferably, the radius of the dumping wall cross section is 0.6 times the height of the outer shell.

[0020] Specifically, a rotary valve support plate protrusion is integrally provided on the top surface of the rotary valve support plate, and the rotary valve support plate protrusion extends upward along the vertical direction; the rotary valve mounting block includes a rotary valve mounting block body, and a rotary valve mounting block protrusion is integrally provided on the bottom surface of the rotary valve mounting block body, and the rotary valve mounting block protrusion extends downward along the vertical direction; the drainage channel beside the rotary valve support plate protrusion and the lateral side of the rotary valve mounting block protrusion is a first drainage channel, and the drainage channel between the rotary valve support plate protrusion and the rotary valve mounting block protrusion is a second drainage channel, and the inner diameter of the first drainage channel is greater than the inner diameter of the second drainage channel.

[0021] Specifically, a plug is provided in the first drainage channel, and the plug is located on the other lateral side of the rotary valve; the plug includes an integrated plug sheet and a plug cone, the plug sheet is a flat cylindrical structure, the plug cone is a conical structure, and the radius of the plug cone gradually decreases from one lateral side to the other side; the apex of the plug cone is fixedly connected to the spring, and the spring extends along the lateral direction and extends into the second drainage channel.

[0022] Preferably, the spring constant is 8-9 N / mm.

[0023] The side wall on the other side of the outer shell body is the upper right side wall, and the gap between the side wall on the other side of the rotary valve mounting block and the upper right side wall is the first exhaust flow channel, and the first exhaust flow channel is arranged along the vertical direction; the gap between the top surface of the rotary valve mounting block and the inner top surface of the outer shell body is the second exhaust flow channel, and the second exhaust flow channel is arranged along the horizontal direction, the exhaust hole and the second exhaust flow channel are located in the same horizontal plane, and the first exhaust flow channel and the second exhaust flow channel are connected.

[0024] Compared with the prior art, the present invention has the following technical effects:

[0025] After the detonator is fixed by the detonator fixing device of the present invention, the device and the detonator remain stationary for a certain period of time, and this period of time is enough for the operator to reach the safe area and detonate the detonator. Once the detonator misfires, the operator only needs to wait for a period of time. When the predetermined time is reached, the detonator fixing device will slowly rotate the detonator 90 degrees, and adjust the jet direction of the detonator from facing the explosive to away from the explosive. At this time, even if the detonator is accidentally detonated, the explosive will not be detonated, and the energy of the detonator itself is very small, and it will not cause harm to people in close proximity, that is, it is a safer state at this time. The staff can remove the misfired detonator, and there is no safety risk in this process. The danger caused to the staff by the detonation of the misfired detonator at any time is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of a detonator fixing device with automatic explosion-disposal function.

[0027] Figure 2 It is a schematic diagram of the structure of the outer shell.

[0028] Figure 3 Schematic diagram of the parameters of the outer shell.

[0029] Figure 4 Schematic diagram of the working process of the current limiting structure.

[0030] The meanings of the numbers in the figure are: 1-outer shell, 2-detonator fixing chamber, 3-rotary valve mounting block, 4-liquid storage chamber, 5-mercury, 6-liquid discharge chamber, 7-liquid discharge channel, 8-exhaust channel, 9-rotary valve mounting chamber, 10-rotary valve, 11-plug, 12-spring.

[0031] 101 - dumping wall, 102 - supporting wall, 103 - boss, 104 - rotary valve supporting plate, 105 - rotary valve supporting plate boss, 106 - upper right side wall.

[0032] 301 - rotary valve mounting block body, 302 - rotary valve mounting block protrusion.

[0033] 701 - first drainage channel, 702 - second drainage channel.

[0034] 801 - first exhaust flow channel, 802 - second exhaust flow channel.

[0035] 1001 - rotary valve body, 1002 - drain hole, 1003 - exhaust hole.

[0036] 1101- plugging piece, 1102- plugging cone.

[0037] α-center angle of the pouring wall section, R-radius of the pouring wall section, H-height of the outer shell.

[0038] The specific contents of the present invention are further explained in detail below in conjunction with embodiments. DETAILED DESCRIPTION

[0039] It should be noted that, unless otherwise specified, all components, explosives and materials in the present invention are components, explosives and materials known in the art.

[0040] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solution of this application fall within the protection scope of the present invention.

[0041] Embodiment 1:

[0042] This embodiment provides a detonator fixing device with automatic explosion-discharging function, such as Figure 1 and Figure 2 As shown, it comprises an outer shell 1, a detonator fixing cavity 2 is opened on one lateral side of the outer shell 1 along the vertical direction, a detonator is arranged in the detonator fixing cavity 2, and the bottom end of the detonator is arranged on the explosive.

[0043] like Figure 1 and Figure 2 As shown, the side wall at the lower position on the other lateral side of the outer shell 1 is a dumping wall 101, and the dumping wall 101 is a partial cylindrical surface; the bottom surface of the outer shell 1 is a supporting wall 102, and the supporting wall 102 is a plane, and the outer bottom surface of the supporting wall 102 is arranged on the explosive; a boss 103 is integrally arranged on the inner bottom surface of the supporting wall 102, and the side wall on one lateral side of the boss 103 is integrally connected with the inner wall of the outer shell 1, and a rotary valve support plate 104 is integrally arranged on the top of the other lateral side of the boss 103, and the rotary valve support plate 104 extends along the lateral direction; a rotary valve mounting block 3 is arranged in the outer shell 1, and the longitudinal sides of the rotary valve mounting block 3 are fixed on the wall surface of the outer shell 1, and the rotary valve mounting block 3 is located above the rotary valve support plate 104.

[0044] like Figure 1 and Figure 2 As shown, the space enclosed by the side wall on one lateral side of the rotary valve mounting block 3, the inner side wall on one lateral side of the outer shell 1, the inner top surface on one lateral side of the outer shell 1, the top surface of the boss 103 and a part of the top surface of the rotary valve support plate 104 is a liquid storage chamber 4, in which mercury 5 is contained; the space enclosed by the rotary valve mounting block 3, the tilting wall 101, the side wall on the other lateral side of the boss 103 and the bottom surface of the rotary valve support plate 104 is a liquid discharge chamber 6, and the position of the liquid discharge chamber 6 is lower than the position of the liquid storage chamber 4; the gap between the bottom of the rotary valve mounting block 3 and the rotary valve support plate 104 is a liquid discharge channel 7; the gap between the side wall on the other lateral side of the rotary valve mounting block 3 and the inner wall of the outer shell 1, and the gap between the top of the rotary valve mounting block 3 and the inner wall of the outer shell 1 are exhaust channels 8.

[0045] like Figure 1 As shown, a rotary valve installation cavity 9 is provided in the vertical direction on one lateral side of the rotary valve installation block 3, and a rotary valve body 1001 is installed in the rotary valve installation cavity 9; the top of the rotary valve body 1001 extends out of the top of the outer shell 1, and the bottom of the rotary valve body 1001 contacts the rotary valve support plate 104; a drainage hole 1002 is provided on the bottom of the rotary valve body 1001, and the drainage hole 1002 and the drainage channel 7 are located in the same horizontal plane; an exhaust hole 1003 is provided on the top of the rotary valve body 1001, and the exhaust hole 1003 and the top of the exhaust channel 8 are located in the same horizontal plane; the drainage hole 1002 and the exhaust hole 1003 are opened in the same direction; the structure composed of the rotary valve body 1001, the drainage hole 1002 and the exhaust hole 1003 is a rotary valve 10, and the rotary valve body 1001 and the rotary valve installation cavity 9 are both cylindrical structures, and the rotary valve 10 can rotate in the rotary valve installation cavity 9.

[0046] When the central axis of the drainage hole 1002 is perpendicular to the central axis of the drainage channel 7, and the central axis of the exhaust hole 1003 and the top of the exhaust channel 8 are perpendicular to each other, the drainage channel 7 and the exhaust channel 8 are completely blocked by the rotary valve body 1001, and the liquid holding chamber 4 and the drainage chamber 6 are not connected.

[0047] When the central axis of the drainage hole 1002 is coaxial with the central axis of the drainage channel 7, and the exhaust hole 1003 is coaxial with the central axis of the top of the exhaust channel 8, the liquid holding chamber 4 and the drainage chamber 6 are connected through the drainage hole 1002, the drainage channel 7, the exhaust hole 1003 and the exhaust channel 8.

[0048] When the liquid holding chamber 4 and the liquid discharge chamber 6 are behind each other, the mercury 5 in the liquid holding chamber 4 can flow into the liquid discharge chamber 6 through the liquid discharge hole 1002 and the liquid discharge channel 7 under the action of gravity, and the gas in the liquid discharge chamber 6 can flow into the liquid holding chamber 4 through the exhaust hole 1003 and the exhaust channel 8. With the flow of mercury 5, the center of mass of the detonator fixing device with automatic explosion disposal function gradually shifts from one lateral side to the other side. Under the action of the tilting wall 101, the detonator fixing device with automatic explosion disposal function gradually falls to the other lateral side, and the detonator gradually falls to the other lateral side.

[0049] As a specific and preferred solution of this embodiment, Figure 2 and Figure 3 As shown, the outer shell 1 is a rectangular structure, and except for the dumping wall 101, the other wall surfaces are flat; the dumping wall 101 is a quarter cylinder, that is, the central angle α of the dumping wall 101 cross section is 90°, and the radius R of the dumping wall 101 cross section is 0.6 times the height H of the outer shell 1.

[0050] As a specific solution of this embodiment, Figure 1 and Figure 2As shown, a rotary valve support plate protrusion 105 is integrally provided on the top surface of the rotary valve support plate 104, and the rotary valve support plate protrusion 105 extends upward along the vertical direction; the rotary valve mounting block 3 includes a rotary valve mounting block body 301, and a rotary valve mounting block protrusion 302 is integrally provided on the bottom surface of the rotary valve mounting block body 301, and the rotary valve mounting block protrusion 302 extends downward along the vertical direction; the drainage channel 7 beside the lateral side of the rotary valve support plate protrusion 105 and the rotary valve mounting block protrusion 302 is a first drainage channel 701, and the drainage channel 7 between the rotary valve support plate protrusion 105 and the rotary valve mounting block protrusion 302 is a second drainage channel 702, and the inner diameter of the first drainage channel 701 is greater than the inner diameter of the second drainage channel 702.

[0051] As a specific solution of this embodiment, Figure 1 and Figure 4 As shown, a plug 11 is provided in the outer first drainage channel 701, and the plug 11 is located on the other lateral side of the rotary valve 10; the plug 11 includes an integrated plug sheet 1101 and a plug cone 1102, the plug sheet 1101 is a flat cylindrical structure, the plug cone 1102 is a conical structure, and the radius of the plug cone 1102 gradually decreases from one lateral side to the other; the apex of the plug cone 1102 is fixedly connected to the spring 12, and the spring 12 extends along the lateral direction and extends into the second drainage channel 702.

[0052] As a specific and preferred solution of this embodiment, the spring constant of the spring 12 is 8 N / mm.

[0053] As a specific solution of this embodiment, Figure 1 and Figure 2 As shown, the side wall on the other side of the outer shell 1 is the upper right side wall 106, and the gap between the side wall on the other side of the rotary valve mounting block 3 and the upper right side wall 106 is the first exhaust channel 801, and the first exhaust channel 801 is arranged along the vertical direction; the gap between the top surface of the rotary valve mounting block 3 and the inner top surface of the outer shell 1 is the second exhaust channel 802, and the second exhaust channel 802 is arranged along the horizontal direction, the exhaust hole 1003 and the second exhaust channel 802 are located in the same horizontal plane, and the first exhaust channel 801 and the second exhaust channel 802 are connected.

[0054] As a specific and optional solution of this embodiment, the rotary valve mounting block 3 and the outer shell 1 can be integrated; or fixed in the outer shell 1 by welding; or detachably fixed on the outer shell 1 by bolts or the like.

[0055] The method for using the detonator fixing device with automatic explosion-discharging function of the present invention comprises the following steps:

[0056] Step 1: Device assembly:

[0057] Assemble the spring 12 with the outer shell 1 and the rotary valve mounting block 3; Assemble the plug 11 with the spring 12; Assemble the rotary valve 10 with the outer shell 1, so that the central axis of the drain hole 1002 and the exhaust hole 1003 of the rotary valve 10 are respectively perpendicular to the central axis of the drain channel 7 and the second exhaust channel 802. Put the mercury 5 into the liquid chamber 4.

[0058] Step 2: Detonation operation:

[0059] When the explosive needs to be detonated by a detonator, place the outer shell 1 on the upper end of the explosive, fit the lower end face of the outer shell 1 with the detonation end face of the explosive, then place the detonator in the detonator fixing chamber 2, fit the lower end of the detonator with the detonation end face of the explosive, and complete other preparations. Before the staff prepares to evacuate, rotate the rotary valve 10 counterclockwise 90°, and the central axis of the drain hole 1002 and the exhaust hole 1003 of the rotary valve 10 are respectively in line with the central axis of the drain channel 7 and the second exhaust channel 802 of the outer shell 1, and the drain channel 7 and the second exhaust channel 802 of the outer shell 1 are unobstructed at the same time, and then the staff evacuates. At this time, the center of mass of the entire device is on the left side of the outer shell 1. Within a certain period of time, the entire device will not move, and this period of time is enough for the staff to reach a safe area and detonate the detonator.

[0060] Step 3: Explosive Ordnance Disposal Operation:

[0061] If the detonator misfires, the staff needs to wait. As time goes by, the mercury 5 in the liquid chamber 4 flows into the liquid discharge chamber 6 through the liquid discharge hole 1002 and the liquid discharge channel 7, and the gas in the liquid discharge chamber 6 flows into the liquid chamber 4 through the exhaust channel 8 and the exhaust hole 1003. In this way, a flow cycle is formed, so that the mercury 5 will continuously flow into the liquid discharge chamber 6. As the mercury 5 flows, the center of mass of the mercury 5 moves from left to right, and the center of mass of the entire device gradually moves to the right. When the center of mass of the entire device moves to the right, the entire device will slowly rotate clockwise until all the mercury 5 flows into the liquid discharge chamber 6. The entire device will rotate clockwise 90°, and the lower end face of the detonator is away from the explosive. Even if it is accidentally detonated, it will not detonate the explosive, and the dangerous state is eliminated.

[0062] In the above process, when mercury 5 flows through the second drainage channel 702, it will drive the plug 11 to move to the right and block a part of the second drainage channel 702; when the flow rate of mercury 5 is relatively low, the force applied to the plug 11 to the right is small, the force of the plug 11 to squeeze the spring 12 to the right is small, the deformation of the spring 12 is small, and the size of the plug 11 moving to the right is small. Due to the design of the plug cone 1102 that is larger on the left and smaller on the right, the area of ​​the second drainage channel 702 blocked by the plug 11 is small, and the flow rate of mercury 5 is reduced less; when the flow rate of mercury 5 is relatively high, the size of the plug 11 moving to the right is large. Due to the design of the plug cone 1102 that is larger on the left and smaller on the right, the area of ​​the second drainage channel 702 blocked by the plug 11 is large, and the flow rate of mercury 5 is reduced more. Through the automatic adjustment of the plug 11, it is ensured that the flow rate of mercury 5 eventually approaches a stable speed.

[0063] The working principle and design idea of ​​the detonator fixing device with automatic explosion-discharging function of the present invention are as follows:

[0064] (A) Working principle: After the detonator misfires, it must be removed. However, the misfired detonator has received the detonation signal after all, which is in a dangerous state and may explode at any time. Therefore, there is a certain risk in manual removal. The present invention allows the liquid mercury 5 to flow automatically from the upper left position to the lower right position by gravity. Since this movement is carried out spontaneously by gravity, no circuit or additional manual operation is required, and the movement can be carried out automatically after the personnel leave. After the mercury 5 flows from the upper left to the lower right, the center of mass moves to the right, which can drive the center of mass of the device to move to the right. The supporting wall 102 at the lower left end of the device is a plane, and the dumping wall 101 at the lower right end is a cylindrical surface. When the center of mass of the device is close to the left, the supporting wall 102 can stably contact with the detonated explosive. When the center of mass of the device is close to the right, the dumping wall 101 is suspended in the air and will not stably contact with the detonated explosive, but will gradually rotate. After the rotation, the plumb line at the position of the center of mass must be on the contact surface between the cylindrical surface and the explosive. As the center of mass moves to the right, the rotation angle of the device gradually increases. Finally, all the mercury 5 flows to the chamber in the lower right corner, and the center of mass of the device moves to the far right. After the device rotates 90°, it drives the detonator to rotate 90°, and the detonator is separated from the explosive. Even if it is accidentally detonated, it will not detonate the explosive, thus achieving the effect of bomb disposal.

[0065] (B) Design of the pouring wall 101: If the cross-sectional radius of the pouring wall 101 is too large, the area of ​​the supporting wall 102 will be too small. After a portion of the mercury 5 flows, the center of mass will move slightly, and the plumb line of the center of mass will enter the pouring wall 101. The outer shell 1 will rotate with the detonator, and the detonator and the explosive will be separated. At this time, the detonator will not be able to detonate the explosive. In other words, the time left for the operator from the evacuation to the detonation is too short. Once this time is exceeded, the explosive cannot be detonated normally, which affects the experiment.

[0066] If the cross-sectional radius of the dumping wall 101 is too small, the area of ​​the dumping wall 101 is too small, and the outer shell 1 with the detonator rotates along the dumping wall 101. Once the area of ​​the dumping wall 101 is too small, the time taken for the outer shell 1 to rotate from the beginning to the completion of the rotation is too short, and the rotation speed is too fast. Since the present invention is an explosive disposal device, it has the requirement of safe use. Once the movement speed is fast, unexpected movement results may occur, such as dumping or tilting. The final state of the outer shell 1 cannot be determined. Once it cannot be determined that the detonator is completely separated from the explosive, a safe state cannot be achieved, resulting in the failure of the present invention.

[0067] The present invention has found through a large number of experiments that when the radius of the cross section of the dumping wall 101 is 0.6 times the height of the outer shell 1, the area of ​​the supporting wall 102 is large enough, and the outer shell 1 can remain stationary for a sufficient time for the operator to evacuate and detonate the detonator. Moreover, under this design, the outer shell 1 with the detonator rotates slowly, and no unexpected movement state occurs, ensuring that the detonator is finally completely separated from the explosives and reaches a safe state.

[0068] (C) Current limiting structure design: Since the flow rate of mercury 5 is affected by many factors, such as different temperatures and different viscosities of mercury 5, if the viscosity is low, the flow rate is faster, and if the viscosity is high, the flow rate is slower. In addition, during the flow of mercury 5, the size of the flow path cannot be accurate and has tolerances. Therefore, the flow rate of mercury 5 cannot be uniquely determined, that is, the center of mass offset time of the device of the present invention cannot be accurately determined. However, the delay time must be uniquely determined according to the operator's needs, so that the operator can complete the evacuation and detonation within this time; and it must reach a safe state after the detonator rotation time, at which time the detonator must be completely separated from the explosive. If the delay time is uncertain, the present invention cannot be used normally.

[0069] Therefore, the present invention designs a structure composed of the plug 11, the spring 12 and the second drainage channel 702 as a flow limiting structure. When the flow speed of mercury 5 is fast, the force applied to the plug 11 to the right is large, so that the plug 11 moves to the right and blocks a part of the second drainage channel 702. The faster the flow speed of mercury 5 is, the more parts are blocked. After a part of the second drainage channel 702 is blocked, the flow speed of mercury 5 will naturally decrease. Similarly, when the flow speed of mercury 5 is slow, the force applied to the plug 11 to the right is small, so that the size of the plug 11 moving to the right is small, and the blocked part of the second drainage channel 702 is very small. The slower the flow speed of mercury 5 is, the smaller the blocked part is. After the second drainage channel 702 is blocked, the part of the second drainage channel 702 that is unblocked is large, and the flow speed of mercury 5 will naturally accelerate.

[0070] That is, when the flow velocity of mercury 5 is high, the flow area of ​​the second liquid discharge channel 702 is reduced, so that the flow velocity of mercury 5 decreases; when the flow velocity of mercury 5 is low, the flow area of ​​the second liquid discharge channel 702 is increased, so that the flow velocity of mercury 5 increases, and finally reaches a stable flow velocity, so that the flow time of mercury 5 is close to a unique value, the time of the center of mass deviation of the outer shell 1 is also a unique value, and the start time and end time of the rotation of the detonator are both unique values. In this way, the use requirements of the operator are met.

[0071] (D) Spring design: If the spring coefficient of the spring 12 is too large, the plug 11 is subjected to large and small forces, the movement distance of the spring 12 is small, and the blocking effect on the second liquid discharge channel 702 is reduced, and the design purpose of the present invention cannot be achieved. If the spring coefficient of the spring 12 is too small, the force given by the spring 12 to the plug 11 is too small. Once the plug 11 is subjected to the force of the flow of mercury 5 and moves to the right and blocks the second liquid discharge channel 702, the flow of mercury 5 will stop, and the plug 11 is easily stuck in the second liquid discharge channel 702. Since the spring coefficient of the spring 12 is too small, the force given to the plug 11 is too small, and the plug 11 cannot be pushed away. After the second liquid discharge channel 702 is blocked, the flow of mercury 5 will stop completely, and the present invention cannot continue to work, and the detonator cannot continue to rotate, resulting in the failure of the present invention.

[0072] In the present invention, through some theoretical calculations, staff with relevant work experience are convened for collective discussion, and the above problems are decomposed, and each module is experimentally evaluated separately. Finally, it is believed that when the stiffness coefficient of the spring 12 is 8-9N / mm, the above problems can be avoided, and the spring 12 can give the plug 11 enough force, so that even if the second drainage channel 702 is blocked by the flow of mercury 5, the spring 12 can also push the plug 11 away, which is the normal operation of the present invention. The plug 11 can also have enough movement to adjust the liquid flow area of ​​the second drainage channel 702, so that the liquid flow speed is kept at the designed speed, making the working time of the present invention unique. The design advantages of the present invention can be reflected, the functions of the present invention can be fully exerted, and the use of the present invention can solve the problem perfectly.

[0073] Effect verification of Example 1:

[0074] Thirty devices of Example 1 were processed and used according to the steps of the present invention, and remote observation was performed. Finally, it was found that all detonators began to rotate at the predetermined time, and the detonators were completely separated from the explosives at the predetermined time after rotation, thus ensuring the safety and reliability of the experiment. The above results prove that the present invention is effective.

[0075] Embodiment 2:

[0076] This embodiment provides a detonator fixing device with an automatic explosion-discharging function. The specific structure of the device is basically the same as that of Embodiment 1, except that: in this embodiment, the stiffness coefficient of the spring 12 is 9N / mm.

[0077] Effect verification of Example 2:

[0078] Thirty devices of Example 2 were processed and used according to the steps of the present invention, and remote observation was performed. Finally, it was found that all detonators began to rotate at the predetermined time, and the detonators were completely separated from the explosives at the predetermined time after rotation, thus ensuring the safety and reliability of the experiment. The above results prove that the present invention is effective.

Claims

1. A detonator fixing device with automatic explosion-discharging function, comprising an outer shell (1), a detonator fixing cavity (2) is provided on one lateral side of the outer shell (1) along the vertical direction, a detonator is arranged in the detonator fixing cavity (2), and the bottom end of the detonator is arranged on the explosive; characterized in that: The side wall at the lower position on the other lateral side of the outer shell (1) is a dumping wall (101), and the dumping wall (101) is a partial cylindrical surface; the bottom surface of the outer shell (1) is a supporting wall (102), and the supporting wall (102) is a plane, and the outer bottom surface of the supporting wall (102) is arranged on the explosive; a boss (103) is integrally arranged on the inner bottom surface of the supporting wall (102), and the side wall on one lateral side of the boss (103) is integrally connected with the inner wall of the outer shell (1), and a rotary valve supporting plate (104) is integrally arranged on the top of the other lateral side of the boss (103), and the rotary valve supporting plate (104) extends in the lateral direction; a rotary valve mounting block (3) is arranged in the outer shell (1), and the longitudinal sides of the rotary valve mounting block (3) are fixed on the wall surface of the outer shell (1), and the rotary valve mounting block (3) is located above the rotary valve supporting plate (104); The space enclosed by the side wall on one lateral side of the rotary valve mounting block (3), the inner side wall on one lateral side of the outer shell (1), the inner top surface on one lateral side of the outer shell (1), the top surface of the boss (103) and part of the top surface of the rotary valve support plate (104) is a liquid storage chamber (4), and mercury (5) is contained in the liquid storage chamber (4); The space enclosed by the rotary valve mounting block (3), the tilting wall (101), the side wall on the other side of the boss (103), and the bottom surface of the rotary valve support plate (104) is a liquid discharge chamber (6), and the position of the liquid discharge chamber (6) is lower than the position of the liquid storage chamber (4); The gap between the bottom of the rotary valve mounting block (3) and the rotary valve supporting plate (104) is a liquid discharge channel (7); the gap between the side wall on the other side of the rotary valve mounting block (3) and the inner wall of the outer shell (1), and the gap between the top of the rotary valve mounting block (3) and the inner wall of the outer shell (1) are exhaust channels (8); A rotary valve installation cavity (9) is provided in a lateral side of the rotary valve installation block (3) along the vertical direction, and a rotary valve body (1001) is installed in the rotary valve installation cavity (9); the top end of the rotary valve body (1001) extends out of the top end of the outer shell (1), and the bottom end of the rotary valve body (1001) is in contact with the rotary valve support plate (104); a drainage hole (1002) is provided on the bottom of the rotary valve body (1001), and the drainage hole (1002) and the drainage channel (7) are located in the same horizontal plane; the rotary valve body An exhaust hole (1003) is provided on the top of the (1001), and the exhaust hole (1003) and the top of the exhaust channel (8) are located in the same horizontal plane; the drainage hole (1002) and the exhaust hole (1003) are opened in the same direction; the structure composed of the rotary valve body (1001), the drainage hole (1002) and the exhaust hole (1003) is a rotary valve (10), and the rotary valve body (1001) and the rotary valve installation cavity (9) are both cylindrical structures, and the rotary valve (10) can rotate in the rotary valve installation cavity (9); When the central axis of the liquid discharge hole (1002) and the central axis of the liquid discharge channel (7) are perpendicular to each other, and the central axis of the exhaust hole (1003) and the top of the exhaust channel (8) are perpendicular to each other, the liquid discharge channel (7) and the exhaust channel (8) are completely blocked by the rotary valve body (1001), and the liquid storage chamber (4) and the liquid discharge chamber (6) are not connected; When the central axis of the liquid discharge hole (1002) is coaxial with the central axis of the liquid discharge channel (7), and the exhaust hole (1003) is coaxial with the central axis of the top of the exhaust channel (8), the liquid storage chamber (4) and the liquid discharge chamber (6) are connected through the liquid discharge hole (1002), the liquid discharge channel (7), the exhaust hole (1003), and the exhaust channel (8); When the liquid holding chamber (4) and the liquid discharge chamber (6) are connected, the mercury (5) in the liquid holding chamber (4) can flow into the liquid discharge chamber (6) through the liquid discharge hole (1002) and the liquid discharge channel (7) under the action of gravity, and the gas in the liquid discharge chamber (6) can flow into the liquid holding chamber (4) through the exhaust hole (1003) and the exhaust channel (8). As the mercury (5) flows, the center of mass of the detonator fixing device with automatic explosion-discharging function gradually shifts from one side to the other side in the horizontal direction. Under the action of the tilting wall (101), the detonator fixing device with automatic explosion-discharging function gradually tilts to the other side in the horizontal direction, and the detonator gradually tilts to the other side in the horizontal direction.

2. The detonator fixing device with automatic explosion-discharging function as claimed in claim 1, characterized in that: The pouring wall (101) is a quarter cylindrical surface.

3. The detonator fixing device with automatic explosion-discharging function as claimed in claim 1, characterized in that: The radius of the cross section of the dumping wall (101) is 0.6 times the height of the outer shell (1).

4. The detonator fixing device with automatic explosion-discharging function as claimed in claim 1, characterized in that: A rotary valve support plate protrusion (105) is integrally provided on the top surface of the rotary valve support plate (104), and the rotary valve support plate protrusion (105) extends upward in the vertical direction; The rotary valve mounting block (3) comprises a rotary valve mounting block body (301), a rotary valve mounting block protrusion (302) is integrally arranged on the bottom surface of the rotary valve mounting block body (301), and the rotary valve mounting block protrusion (302) extends downward in the vertical direction; The drainage channel (7) on one lateral side of the rotary valve support plate protrusion (105) and the rotary valve mounting block protrusion (302) is a first drainage channel (701), and the drainage channel (7) between the rotary valve support plate protrusion (105) and the rotary valve mounting block protrusion (302) is a second drainage channel (702). The inner diameter of the first drainage channel (701) is greater than the inner diameter of the second drainage channel (702).

5. The detonator fixing device with automatic explosion-discharging function as claimed in claim 4, characterized in that: A plug (11) is provided in the first liquid discharge channel (701), and the plug (11) is located on the other lateral side of the rotary valve (10); the plug (11) comprises an integrated plug sheet (1101) and a plug cone (1102), the plug sheet (1101) is a flat cylindrical structure, the plug cone (1102) is a conical structure, and the radius of the plug cone (1102) gradually decreases from one lateral side to the other side; the apex of the plug cone (1102) is fixedly connected to the spring (12), and the spring (12) extends along the lateral direction and extends into the second liquid discharge channel (702).

6. The detonator fixing device with automatic explosion-discharging function as claimed in claim 5, characterized in that: The spring coefficient of the spring (12) is 8-9 N / mm.

7. The detonator fixing device with automatic explosion-discharging function as claimed in claim 1, characterized in that: The side wall at the upper position on the other side of the outer shell (1) is the upper right side wall (106); the gap between the side wall on the other side of the rotary valve mounting block (3) and the upper right side wall (106) is the first exhaust flow channel (801); the first exhaust flow channel (801) is arranged along the vertical direction; the gap between the top surface of the rotary valve mounting block (3) and the inner top surface of the outer shell (1) is the second exhaust flow channel (802); the second exhaust flow channel (802) is arranged along the horizontal direction; the exhaust hole (1003) and the second exhaust flow channel (802) are located in the same horizontal plane; the first exhaust flow channel (801) and the second exhaust flow channel (802) are connected.

Images