A remote detonation test auxiliary device and its usage method

Abstract

This invention discloses a remote detonation test auxiliary device and its usage method, belonging to the field of fuse detonation technology. It includes a first housing, an electromagnetic pin puller, a driving device, a driving wheel assembly connected to the output end of the driving device, and a driven wheel assembly meshing with the driving wheel assembly. The first housing is connected to two state switches with a spacing greater than 0° and less than or equal to 180°. One state switch is connected to an alarm, and the other state switch is connected in parallel to an electric detonator. Each state switch includes two spaced-apart terminals. The driven wheel assembly includes a driven wheel body, a connecting member, and a conductive member. The driving wheel assembly includes a driving wheel body. The driven wheel body or the driving wheel body has two first through holes with the same spacing as the two state switches at the output end corresponding to the electromagnetic pin puller. The remote detonation test auxiliary device and its usage method of this invention have high overall safety and are easy to operate, showing good application prospects.

Description

Technical Field

[0001] This invention belongs to the field of fuse initiation technology, specifically relating to a remote initiation test auxiliary device and its usage method. Background Technology

[0002] During the development of fuses, a complete explosion test is usually required. Because the detonation sequence of the fuse contains a large amount of explosive, the safety of the operators must be ensured during the relevant initiation tests.

[0003] The specific operation process usually involves first analyzing the existing detonation test, then connecting a power source to a detonator at one end of a remote cable, and then disconnecting the power source from the cable during normal operation. After personnel are evacuated to a safe location, the power source is then supplied to the remote cable to detonate the detonator.

[0004] However, the above operation is not very safe. During operation, there is a possibility that the power supply may be accidentally triggered or left on, causing the entire circuit to be connected as soon as the circuit is opened, which could detonate the electric detonator and cause accidental injury. In order to prevent personal injury caused by accidents, safety control measures need to be implemented during the operation. Summary of the Invention

[0005] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides a remote detonation test auxiliary device and its usage method, which reduces the risk of premature detonation of electric detonators that may occur when connecting the detonation circuit of the fuse.

[0006] To achieve the above objectives, the present invention provides a remote detonation test auxiliary device, comprising a first housing, an electromagnetic pin puller, a drive device, a drive wheel assembly connected to the output end of the drive device, and a driven wheel assembly meshing with the drive wheel assembly.

[0007] The first housing is connected to two status switches with an interval of greater than 0° and less than or equal to 180°. One status switch is connected to an alarm, and the other status switch is connected in parallel to an electric detonator. Each status switch includes two spaced-apart terminals.

[0008] The driven wheel assembly includes a driven wheel body, a connector, and a conductive element. The driven wheel body has a connection hole at its center, through which the connector connects the driven wheel body to the first housing. The conductive element is disposed within the driven wheel body, and one end of the conductive element is not lower than the side of the driven wheel body closest to the first housing. The width of the conductive element is greater than the interval between the two electrical terminals.

[0009] The driving wheel assembly includes a driving wheel body, and the driving wheel body and the driven wheel body are made of non-conductive material. The driven wheel body or the driving wheel body is provided with two first through holes with the same spacing as the two state switches corresponding to the output end of the electromagnetic pin puller, so that the output end of the electromagnetic pin puller can extend into the first through holes and limit the driven wheel body or the driving wheel body with the first through holes.

[0010] As a further improvement of the present invention, a limiting member is also included;

[0011] The driving wheel body or driven wheel body without the first through hole is provided with an arc hole with the same degree as the interval between the two state switches. One end of the limiting member is fixed to the first housing, and the other end is located in the arc hole.

[0012] When the limiting member is at one end of the arc hole, the output end of the electromagnetic pin puller can extend into one of the first through holes; when the limiting member is at the other end of the arc hole, the output end of the electromagnetic pin puller can extend into another of the first through holes.

[0013] When the limiting member stops at one end of the arc hole, the conductive member contacts one of the status switches and connects the two terminals on the status switch. When the limiting member stops at the other end of the arc hole, the conductive member contacts another status switch and connects the two terminals on the status switch.

[0014] As a further improvement of the present invention, the conductive element includes a first outer shell, a first elastic element, and a conductive post, wherein the first outer shell has a cavity to accommodate the conductive post and the first elastic element;

[0015] The conductive post is provided with a blind hole to accommodate the first elastic element, and the first elastic element can push the conductive post to protrude from the end face of the first housing.

[0016] As a further improvement of the present invention, the diameter of the end of the conductive post away from the connection with the first elastic member is smaller than the diameter of the rest of the conductive post, and the cavity is configured to correspond to the shape of the conductive post so that the larger part of the diameter of the conductive post can be limited.

[0017] The conductive component further includes a first pressure screw, which is disposed at the end of the first housing corresponding to the conductive post to seal the conductive component.

[0018] As a further improvement of the present invention, the status switch further includes a second housing, a second elastic element, and a wire; the second housing is provided with two second through holes spaced apart, and the two power terminals are respectively disposed in the second through holes;

[0019] Each of the terminals is connected to one end of the second elastic element, which can push the terminal to protrude from the end face of the second housing. The terminal is also connected to the wire at that end.

[0020] As a further improvement of the present invention, the diameter of the end of the electrical contact post away from the connection to the second elastic member is smaller than the diameter of the rest of the electrical contact post, and the second through hole is configured to correspond to the shape of the electrical contact post, so that the larger part of the diameter of the electrical contact post can be limited.

[0021] The status switch also includes a second pressure screw, which is disposed at the bottom of the second housing to seal the status switch.

[0022] As a further improvement of the present invention, a second housing is also included;

[0023] The second housing is connected to the first housing via a support member. The second housing is located above the first housing, and the bottom of the support member protrudes from the first housing by a certain length so that the height of the first housing from the ground is adjustable.

[0024] As a further improvement of the present invention, the driving device and the alarm are disposed on the second housing;

[0025] The drive device is provided with a third pressure screw at its end, which fixes it to the second housing.

[0026] As a further improvement of the present invention, the end of the electromagnetic pin puller is provided with a fourth pressure screw to fix it to the second housing.

[0027] Another aspect of the present invention provides a method for using a remote detonation test auxiliary device, wherein the specific steps of the aforementioned remote detonation test auxiliary device are as follows:

[0028] (1) Make the conductive element contact with the state switch of the detonator connected in parallel, so that the detonator is short-circuited and protected by the state switch which is in the conducting state, while the other state switch connected to the alarm is in the off state; at this time, the output end of the electromagnetic pin is embedded in the first through hole.

[0029] (2) Power on the electromagnetic pin puller so that the electromagnetic pin puller is pulled back; power on the drive device so that the drive device pushes the drive wheel assembly to move clockwise. When the alarm sounds, it can be determined that the driven wheel assembly has moved into position and the position status switch connected to the alarm has been turned on.

[0030] (3) Disconnect the power supply to the electromagnetic pin puller, so that its output end is embedded in another first through hole, disconnect the power supply to the alarm, disconnect the power supply to the drive device, and then turn on the main power switch to detonate the electric detonator.

[0031] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0032] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0033] (1) The remote detonation test auxiliary device of the present invention, by setting a drive device to cooperate with the active wheel assembly and the driven wheel assembly and drive them to rotate, allows the device to switch between two states, ensuring that the initial state is stable and the position state is good. The overall safety is high and it is easy to operate, and has good application prospects.

[0034] (2) The remote detonation test auxiliary device of the present invention makes the opening and closing of the status switch controllable by setting conductive posts and power connection posts, and both are equipped with elastic elements to ensure that the connection between the two is stable and reliable, and there will be no situation where the two cannot contact each other and the status switch cannot be turned on.

[0035] (3) The remote detonation test auxiliary device of the present invention locks the driven wheel assembly when it is not rotating by setting an electromagnetic pin, so as to prevent it from rotating due to accident and causing the status switch to be turned on in advance, which would have an adverse effect. The setting of the electromagnetic pin further improves the safety of the device.

[0036] (4) The method of using the remote detonation test auxiliary device of the present invention is remotely controlled and the operation process is time-sensitive. Only by operating in the correct sequence can the switch be switched in place, which ensures high safety. The switching status can be remotely checked through the alarm to ensure that the switching is in place and that the method is feasible.

[0037] (5) The remote detonation test auxiliary device and its usage method in this invention have high safety. The usage method can be implemented remotely, and the switching status can be remotely checked for proper switching via an alarm. The device can be remotely controlled to switch the circuit from disconnected to connected, and the operation is time-sequential; only by operating according to the correct sequence can the switch be properly switched, ensuring high safety. This device ensures operational safety and prevents the detonator from detonating due to accidental power supply. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the overall structure of the remote detonation test auxiliary device in an embodiment of the present invention, showing its initial state.

[0040] Figure 2 This is a schematic diagram of the overall structure of the remote detonation test auxiliary device in the embodiment of the present invention.

[0041] Figure 3 This is a front view of the assembly of the driving wheel assembly and the driven wheel assembly in the remote detonation test auxiliary device in this embodiment of the invention;

[0042] Figure 4 This is an assembly diagram of the active wheel assembly, driven wheel assembly, and status switch in the remote detonation test auxiliary device of this invention.

[0043] Figure 5 This is a rear view of the active wheel assembly and driven wheel assembly in the remote detonation test auxiliary device in this embodiment of the invention;

[0044] Figure 6 This is a cross-sectional view of the conductive component in the remote detonation test auxiliary device in an embodiment of the present invention;

[0045] Figure 7 This is a cross-sectional view of the status switch in the remote detonation test auxiliary device in an embodiment of the present invention;

[0046] Figure 8 This is a simplified schematic diagram of the remote detonation test auxiliary device in an embodiment of the present invention;

[0047] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0048] 1. First housing; 2. Drive unit; 3. Drive wheel assembly; 4. Driven wheel assembly; 5. Status switch; 6. Alarm; 7. Second housing; 8. Support member; 9. Electromagnetic pin puller;

[0049] 201. Third pressure screw;

[0050] 301. Drive wheel body; 302. Limiting component;

[0051] 401. Driven wheel body; 402. Connector; 403. Conductive component; 4031. First outer shell; 4032. First elastic component; 4033. Conductive post; 4034. First pressure screw;

[0052] 501. Terminal post; 502. Second housing; 503. Second elastic element; 504. Wire; 505. Second clamping screw;

[0053] 901, Fourth Pressure Screw. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0055] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0056] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0058] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] Example:

[0060] Please see Figures 1 to 8 The remote detonation test auxiliary device in a preferred embodiment of the present invention includes a first housing 1, a second housing 7, an electromagnetic pin puller 9, a status switch 5, an alarm 6, a drive device 2, a drive wheel assembly 3 connected to the output end of the drive device 2, and a driven wheel assembly 4 meshing with the drive wheel assembly 3. In specific implementation, the drive device 2 is a rotary motor, which facilitates the movement of the drive wheel assembly 3. When the rotary motor is energized in the forward direction, it drives the drive wheel assembly 3 to move clockwise, and the drive wheel assembly 3 drives the meshed driven wheel assembly 4 to move counterclockwise. In the preferred embodiment, the drive wheel assembly 3 includes a drive wheel body 301, and the driven wheel assembly 4 includes a driven wheel body 401, a connecting member 402, and a conductive member 403.

[0061] Further, in a preferred embodiment, the first housing 1 is connected to two state switches 5 with a spacing greater than 0° and less than or equal to 180°, specifically, the two state switches 5 are spaced 90° apart. One state switch 5 is connected to an alarm 6, and the other state switch 5 is connected in parallel to an electric detonator. Each state switch 5 includes two spaced-apart terminals 501. The state switch 5 connected to the alarm 6 is a "positioned" state switch, and the state switch 5 connected in parallel to the electric detonator is an "initial" state switch.

[0062] Furthermore, in a preferred embodiment, the status switch 5 further includes a second housing 502, a second elastic element 503, and a wire 504. The second housing 502 has two second through holes spaced apart, and two terminals 501 are respectively disposed within these second through holes. Preferably, one end of each terminal 501 is connected to the second elastic element 503, which can push the terminal 501 to protrude from the end face of the second housing 502. The terminal 501 is also connected to the wire 504 at this end. In specific implementation, the wire 504 is soldered to the terminal 501 and passes through the first housing 1, residing in the space between the first housing 1 and the ground.

[0063] In specific implementation, the second elastic element 503 is a spring, and the terminal 501 is cut from a beryllium bronze rod. The diameter of the end of the terminal 501 away from the second elastic element 503 is smaller than the diameter of the rest of the terminal 501, i.e., its shape is a stepped cylinder. The smaller diameter cylinder is used to contact the conductive element 403, and the larger diameter cylinder is used to limit the terminal 501. The second outer shell 502 is made of non-metallic, non-conductive material and may have threads on the outside to fix it to the first shell 1 via threaded connection. The two terminals 501 are respectively placed in the two stepped holes of the second outer shell 502, so that the two terminals 501 do not contact each other, ensuring that the state switch 5 is in the off state. The second through hole is set according to the shape of the terminal 501, i.e., it is a stepped hole, so that the larger diameter part of the terminal 501 can be limited. The larger diameter end of the second through hole is also provided with threads.

[0064] In addition, in the preferred embodiment, the status switch 5 further includes a second pressure screw 505, which is disposed at the bottom of the second housing 502 to seal the status switch 5.

[0065] Specifically, in a preferred embodiment, the driven wheel assembly 4 includes a driven wheel body 401, a connector 402, and a conductive element 403. A connecting hole is provided at the center of the driven wheel body 401, through which the connector 402 connects the driven wheel body 401 to the first housing 1. The conductive element 403 is disposed within the driven wheel body 401, with one end not lower than the side of the driven wheel body 401 closest to the first housing 1. The width of the conductive element 403 is greater than the interval between the two terminals 501, ensuring that the two terminals 501 are conductive when in contact with the conductive element 403. Preferably, in actual installation, the conductive element 403 can first be aligned with the initial state switch 5 to ensure its conduction, and then the driving device 2 can be set to rotate the two state switches 5 at intervals to ensure that the conductive element 403 rotates to the position of the final state switch 5 and makes it conductive.

[0066] Among them, such as Figure 5 As shown, in the preferred embodiment, the driven wheel body 401 and the driving wheel body 301 are sized to match, allowing them to mesh well and rotate. The driven wheel body 401 is made of a non-metallic, non-conductive material. In a specific implementation, the connecting member 402 is a pin, and the connecting hole is a stepped hole, used to connect with the pin, fix the driven wheel body 401, and prevent the driven wheel body 401 from moving. Figure 4 As shown, a threaded hole is also provided on the driven wheel body 401 for installing the conductive element 403. The conductive element 403 is located at the bottom of the driven wheel body 401 and is not lower than the bottom surface of the driven wheel body 401. In the preferred embodiment, the conductive element 403 is higher than the bottom surface of the driven wheel body 401 to facilitate subsequent contact with the status switch 5.

[0067] Further, in a preferred embodiment, the conductive element 403 includes a first housing 4031, a first elastic element 4032, and a conductive post 4033. The first housing 4031 has a cavity inside to accommodate the conductive post 4033 and the first elastic element 4032. The conductive post 4033 has a blind hole to accommodate the first elastic element 4032. Similarly, the first elastic element 4032 can push the conductive post 4033 so that it protrudes from the end face of the first housing 4031. Both the conductive post 4033 and the connecting post 501 protrude from the housing, making it easier for the conductive element 403 to contact the state switch 5 and ensuring good contact between them. The width of the conductive post 4033 is greater than the interval between the connecting posts 501, ensuring that the conductive post 4033 connects the two connecting posts 501. In a specific implementation, the conductive post 4033 is made of aluminum rod with good conductivity, and the first elastic element 4032 is a spring. When the conductive post 4033 contacts the contact post 501 and is subjected to external force, the conductive post 4033 compresses the first elastic member 4032, and the conductive post 4033 can be completely retracted into the first outer shell 4031. The setting of the first elastic member 4032 can ensure reliable contact between the conductive member 403 and the status switch 5, and has good vibration resistance and wear resistance.

[0068] Similarly, in the preferred embodiment, the diameter of the end of the conductive post 4033 facing away from the first elastic member 4032 is smaller than the diameter of the rest of the conductive post 4033, and is stepped. The cavity is also stepped, corresponding to the shape of the conductive post 4033, so that the larger diameter portion of the conductive post 4033 can be limited, preventing the conductive post 4033 from falling out of the first housing 4031 under the action of the first elastic member 4032, which would make it inconvenient to use. In the preferred embodiment, the conductive member 403 also includes a first pressure screw 4034, which is disposed at the end of the first housing 4031 corresponding to the conductive post 4033 to seal the conductive member 4033.

[0069] In detail, in the preferred embodiment, the driven wheel body 401 or the driving wheel body 301 is provided with two first through holes at the same interval as the two state switches 5 at the output end of the electromagnetic puller 9. Specifically, when the two state switches 5 are spaced 90° apart, the two first through holes are also spaced 90° apart, so that the output end of the electromagnetic puller 9 can extend into the first through hole and limit the driven wheel body 401 or the driving wheel body 301 with the first through hole. Preferably, since the driving wheel body 301 is connected to the drive device 2, it is inconvenient to connect the electromagnetic puller 9 in specific implementation. Therefore, the first through hole is preferably provided on the driven wheel body 401. When the output end of the electromagnetic puller 9 extends into the first through hole, the driven wheel body 401 is locked, which can prevent the driven wheel assembly 4 from being accidentally driven.

[0070] More specifically, such as Figure 3As shown, in the preferred embodiment, the remote detonation test auxiliary device also includes a limiting member 302. The driving wheel body 301 or the driven wheel body 402, which does not have a first through hole, is provided with an arc hole with the same degree as the interval between the two status switches 5. As described above, when the first through hole is preferably provided on the driven wheel body 401, the driving wheel body 301 is provided with an arc hole, and when the two status switches 5 are spaced 90° apart, the arc hole is a quarter arc hole.

[0071] In a preferred embodiment, one end of the limiting member 302 is fixed to the first housing 1, and the other end is located inside the arc-shaped hole. Specifically, the drive wheel body 301 has a central tooth for engaging and fixing with the output end of the rotary motor; it is also made of a non-metallic, non-conductive material. The limiting member 302 can be a limiting pin, with its bottom fixed to the first housing 1 using an interference fit or a threaded fit, and its other end passing through the arc-shaped hole. When the drive wheel body 301 rotates, the limiting member 302 remains stationary. However, when the drive wheel body 301 rotates until the limiting member 302 abuts against either end of the arc-shaped hole, the drive wheel body 301 is limited and cannot continue to rotate.

[0072] Understandably, when the limiting member 302 is at one end of the arc-shaped hole, the output end of the electromagnetic puller 9 can extend into one of the first through holes; when the limiting member 302 is at the other end of the arc-shaped hole, the output end of the electromagnetic puller 9 can extend into another first through hole. That is, in the initial state, the limiting member 302 is at one end of the arc-shaped hole, and at this time, the electromagnetic puller 9 locks the driven wheel assembly 4 to prevent it from moving. When the driving device 2 starts to drive the driving wheel assembly 3 to rotate, the locking of the electromagnetic puller 9 on the driven wheel assembly 4 is released. When the driven wheel assembly 4 reaches the final position, the limiting member 302 is at the other end of the arc-shaped hole, and at this time, the electromagnetic puller 9 locks the driven wheel assembly 4 again to prevent it from moving. This ensures that the driven wheel assembly 4 is safe and reliable.

[0073] It is understandable that when the limiting member 302 stops at one end of the arc hole, the conductive member 403 contacts a status switch 5 and connects the two terminals 501 on the status switch 5. When the limiting member 302 stops at the other end of the arc hole, the conductive member 403 contacts another status switch 5 and connects the two terminals 501 on the status switch 5.

[0074] Obviously, the spaced-apart terminals 501 keep the status switch 5 itself in the open state. When the conductive element 403 moves to contact the status switch 5, it connects the two terminals 501, thus turning the status switch 5 into the closed state. Initially, the conductive element 403 contacts the status switch 5 connected in parallel with the electric detonator, making it connected. After the driven wheel assembly 4 is driven to rotate, the status switch 5 opens, and the conductive element 403 gradually contacts the status switch 5 connected to the alarm 6, connecting the two terminals 501 on it, thus turning the status switch 5 on. In a specific implementation, the alarm 6 is a buzzer.

[0075] Preferably, such as Figure 1 and Figure 2 As shown, in the preferred embodiment, the second housing 7 is disposed above the first housing 1, and the two are connected by a support member 8. Specifically, the support member 8 is a support column, preferably disposed at the four corners of the first housing 1 and the second housing 7. The first housing 1 and the second housing 7 are matched with each other, and the entire structure is encapsulated as a whole by the four support columns, providing a certain degree of protection for other components installed on it. The bottom of the support member 8 protrudes from the first housing 1 by a certain length, so that the height of the first housing 1 from the ground is adjustable. Specifically, the bottom end of the support column protrudes 10mm to 20mm from the lower end face of the first housing 1. By adjusting the height of the four support columns, the entire device can be placed on uneven ground. Furthermore, the wire 504 connected to the status switch 5 on the second housing 7 can be placed in the space between the second housing 7 and the ground to prevent it from being crushed.

[0076] More specifically, in the preferred embodiment, the drive device 2, the electromagnetic puller 9, and the alarm 6 are disposed on the second housing 7, and the drive device 2 is provided with a third pressure screw 201 at its end to fix it to the second housing 7. Similarly, the electromagnetic puller 9 is provided with a fourth pressure screw 901 at its end to fix it to the second housing 7.

[0077] Another aspect of the present invention provides a method for using a remote detonation test auxiliary device, wherein the specific steps of using the remote detonation test auxiliary device as described above are as follows:

[0078] (1) Make the conductive part 403 contact the state switch 5 connected in parallel with the electric detonator, so that the electric detonator is short-circuited and protected by the state switch 5 which is in the conducting state, while the other state switch 5 connected to the alarm 6 is in the off state.

[0079] The initial state at this time is as follows: Figure 1 As shown, the output end of the electromagnetic puller 9 is inserted into the through hole of the driven wheel body 401, so that the electromagnetic puller 9 locks the driven wheel assembly 4. Even if the drive device 2 is accidentally powered, the driven wheel assembly 4 cannot move due to the constraint of the electromagnetic puller 9, thus ensuring the safety of the device.

[0080] (2) Power is supplied to the electromagnetic puller 9 so that the electromagnetic puller 9 is pulled back and the lock on the driven wheel assembly 4 is released. Power is supplied to the drive device 2 so that the drive device 2 pushes the drive wheel assembly 3 to move clockwise. When the alarm 6 sounds, it can be determined that the driven wheel assembly 4 has moved into position and the position status switch 5 connected to the alarm 6 has been turned on.

[0081] (3) Disconnect the power supply to the electromagnetic pin puller 9, so that its output end is embedded in another first through hole, lock the driven wheel assembly 4 again, disconnect the power supply to the alarm 6, disconnect the power supply to the drive device 2, and then turn on the main power switch to detonate the electric detonator.

[0082] To restore the device to its original state, first, power the electromagnetic puller 9 and pull it back to release the constraint on the driven wheel assembly 4. Then, reverse power supply to the drive device 2 for 2-3 seconds. Test that the status switch 5 connected to the electric detonator is in the conducting state, indicating that the device has been restored to its initial state. The overall schematic diagram of the device is shown below. Figure 8 As shown.

[0083] The remote detonation test auxiliary device and its usage method in this invention offer high safety. The device can be used remotely, and the switching status is checked remotely via an alarm. The device can be remotely controlled to switch the circuit from open to closed, and the operation is time-sequential; only by following the correct sequence can the switch be successfully completed, ensuring high safety. This device ensures operational safety and prevents the detonator from detonating due to accidental power supply failure.

[0084] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A remote detonation test auxiliary device, characterized in that, It includes a first housing, an electromagnetic pin puller, a drive device, a drive wheel assembly connected to the output end of the drive device, and a driven wheel assembly meshing with the drive wheel assembly; The first housing is connected to two status switches with an interval of greater than 0° and less than or equal to 180°. One status switch is connected to an alarm, and the other status switch is connected in parallel to an electric detonator. Each status switch includes two spaced-apart terminals. The driven wheel assembly includes a driven wheel body, a connector, and a conductive element. The driven wheel body has a connection hole at its center, through which the connector connects the driven wheel body to the first housing. The conductive element is disposed within the driven wheel body, and one end of the conductive element is not lower than the side of the driven wheel body closest to the first housing. The width of the conductive element is greater than the interval between the two electrical terminals. The conductive component includes a first outer shell, a first elastic element, and a conductive post. The first outer shell has a cavity to accommodate the conductive post and the first elastic element. The conductive post has a blind hole to accommodate the first elastic element, and the first elastic element can push the conductive post to protrude from the end face of the first outer shell. The status switch further includes a second housing, a second elastic element, and a wire; the second housing is provided with two second through holes spaced apart, and the two power terminals are respectively disposed in the second through holes; one end of each power terminal is connected to the second elastic element, and the second elastic element can push the power terminal to protrude from the end face of the second housing, and the end of the power terminal is also connected to the wire; The driving wheel assembly includes a driving wheel body, and the driving wheel body and the driven wheel body are made of non-conductive material; the driven wheel body or the driving wheel body is provided with two first through holes with the same spacing as the two state switches corresponding to the output end of the electromagnetic pin puller, so that the output end of the electromagnetic pin puller can extend into the first through holes and limit the driven wheel body or the driving wheel body provided with the first through holes; It also includes limiting components; The driving wheel body or driven wheel body with the first through hole is provided with an arc hole with the same degree as the interval between the two state switches. One end of the limiting member is fixed to the first housing, and the other end is located in the arc hole. When the limiting member is at one end of the arc hole, the output end of the electromagnetic pin puller can extend into one of the first through holes; when the limiting member is at the other end of the arc hole, the output end of the electromagnetic pin puller can extend into another of the first through holes. In the initial state, the conductive component contacts the state switch connected in parallel with the electric detonator, making it connected. After the driven wheel assembly is driven to rotate, the state switch connected in parallel with the electric detonator is disconnected, and the conductive component gradually contacts the state switch connected to the alarm, making its two terminals connected, thus connecting the state switch connected to the alarm.

2. The remote detonation test auxiliary device according to claim 1, characterized in that, The diameter of the end of the conductive post opposite to the end connected to the first elastic element is smaller than the diameter of the rest of the conductive post. The cavity is configured to correspond to the shape of the conductive post, so that the larger portion of the diameter of the conductive post can be limited. The conductive component further includes a first pressure screw, which is disposed at the end of the first housing corresponding to the conductive post to seal the conductive component. When the limiting member stops at one end of the arc hole, the conductive member contacts one of the status switches and connects the two terminals on the status switch. When the limiting member stops at the other end of the arc hole, the conductive member contacts another status switch and connects the two terminals on the status switch.

3. The remote detonation test auxiliary device according to claim 1, characterized in that, The diameter of the end of the electrical contact post that is away from the connection to the second elastic member is smaller than the diameter of the rest of the electrical contact post. The second through hole is set according to the shape of the electrical contact post so that the larger part of the diameter of the electrical contact post can be limited. The status switch also includes a second pressure screw, which is disposed at the bottom of the second housing to seal the status switch.

4. The remote detonation test auxiliary device according to claim 1, characterized in that, It also includes a second housing; The second housing is connected to the first housing via a support member. The second housing is located above the first housing, and the bottom of the support member protrudes from the first housing by a certain length so that the height of the first housing from the ground is adjustable.

5. The remote detonation test auxiliary device according to claim 4, characterized in that, The drive unit and the alarm are mounted on the second housing; The drive device is provided with a third pressure screw at its end, which fixes it to the second housing.

6. The remote detonation test auxiliary device according to claim 4 or 5, characterized in that, The electromagnetic pin puller is provided with a fourth pressure screw at its end to fix it to the second housing.

7. A method of using a remote detonation test auxiliary device, characterized in that, The specific steps for using the remote detonation test auxiliary device as described in any one of claims 1 to 6 are as follows: (1) Make the conductive element contact with the state switch of the detonator connected in parallel, so that the detonator is short-circuited by the state switch which is in the conducting state, while the other state switch connected to the alarm is in the open state; at this time, the output end of the electromagnetic pin is embedded in the first through hole. (2) Power on the electromagnetic pin puller so that the electromagnetic pin puller is pulled back; power on the drive device so that the drive device pushes the active wheel assembly to move clockwise. When the alarm sounds, it can be determined that the driven wheel assembly has moved into place and the status switch connected to the alarm has been turned on. (3) Disconnect the power supply to the electromagnetic pin puller, so that its output end is embedded in another first through hole, disconnect the power supply to the alarm, disconnect the power supply to the drive device, and then turn on the main power switch to detonate the electric detonator.

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