Electronic detonator delay time detection device

Abstract

An electronic detonator delay time detection device comprises a shell and an electronic detonator installed on the side wall of the shell, a sealed blasting space is formed in the shell, and a photoelectric sensor used for detecting the delay time of the electronic detonator is installed on the side wall of the shell. The electronic detonator and the photoelectric sensor are respectively arranged on the side walls of the shell on two sides of the blasting space; the top of the shell is provided with a sealing structure used for sealing the blasting space and protecting the photoelectric sensor. Compared with the prior art, the photoelectric sensor is used for collecting the fire light generated when the electronic detonator is blasted, the accuracy of the blasting occurrence time obtained by the photoelectric sensor is improved by utilizing the objective principle that the propagation speed of an optical signal is far greater than the propagation speed of air vibration waves, and meanwhile, due to the fact that only the fire light generated when the electronic detonator is blasted is needed, the accuracy of the blasting occurrence time is improved. The detection accuracy of the vibration sensor is improved without increasing the air wave generated by explosion of the electronic detonator.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic detonator blasting, in particular to a device for detecting the delay time of an electronic detonator. Background Art

[0002] The ability to set a delay time for electronic detonators is a major advancement in the development of detonators. By setting the delay time for electronic detonators, it can avoid resonance caused by the simultaneous detonation of all electronic detonators, make operations safer, and reserve time for operators to evacuate.

[0003] However, since the electronic detonator itself does not have an integrated time calibration module, the time is calculated by the crystal oscillator part of the control module in the electronic detonator, which has a slight difference from the time of the detonator to a certain extent. Therefore, the delay time of the electronic detonator is not a fixed value, but a value within a range. This range is called the safe range of the delay time. For example, if the delay time of an electronic detonator is set to 2ms by the detonator, the actual delay time of the electronic detonator can be between 1.8ms and 2.2ms. Therefore, the delay time of the electronic detonator needs to be tested during the production process of the electronic detonator, and several electronic detonators from the same batch of electronic detonators need to be selected for delay time testing.

[0004] Chinese patent application number 201410691274.X discloses a detonator delay time tester. The tester disclosed above includes a tester body, an explosion box arranged in the tester body, and a test box arranged on the tester body; the explosion box includes a box body, a box cover and a sensor system, a base is provided at the bottom of the box body, and the sensor system is connected to the test box. The box body includes a reinforced steel plate, an outer steel plate, a rubber layer and an inner steel plate from the outside to the inside. The top of the outer steel plate is provided with an upper opening. The inner steel plate forms an inner chamber for placing the detonator to be tested, and the top of the inner steel plate is provided with a lower opening. The box cover includes an outer box cover, an inner box cover, an outer box cover handle and an inner box cover handle; the outer box cover is provided at the upper opening, and the outer box cover handle is fixedly connected to the outer box cover; the inner box cover is provided at the lower opening, and the inner box cover handle is fixedly connected to the inner box cover. Chinese patent application number 202321743077.9 discloses an electronic detonator delay time detection device and detection system. The above-mentioned detection device includes: a main control unit; a power supply module, connected to the main control unit; an electronic detonator communication circuit, connected to the main control unit, and provided with an electronic detonator communication interface; a target signal processing circuit, connected to the main control unit, and provided with a target signal input interface for connecting to a target signal acquisition module, the target signal acquisition module is used to collect the explosion signal of the electronic detonator and output a second target signal; a pulse generation module, connected to the target signal processing circuit, the pulse generation module is used to generate pulses, and the pulses generated by the pulse generation module are output to the target signal processing circuit.

[0005] In the above-mentioned prior art, a sensor is used to obtain the duration of the vibration generated by the blasting of the electronic detonator to detect the delay time of the electronic detonator. However, there is a time delay between the detonation of the electronic detonator and the generation of the blasting vibration, which causes a delay in the data obtained by the sensor, affecting the result. At the same time, the blasting vibration required by the sensor is relatively large. Therefore, during the detection process, a certain dose of explosives needs to be added to the electronic detonator in order for the sensor to collect data, which poses a certain degree of safety risk. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provides an electronic detonator delay time detection device with high detection accuracy and good safety.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical solutions: an electronic detonator delay time detection device, comprising a shell and an electronic detonator installed on the side wall of the shell, a sealed blasting space is formed in the shell, a photoelectric sensor for detecting the delay time of the electronic detonator is installed on the side wall of the shell, the electronic detonator and the photoelectric sensor are respectively installed on the side walls of the shell on both sides of the blasting space; a sealing structure for sealing the blasting space and protecting the photoelectric sensor is provided on the top of the shell.

[0008] As a preferred solution of the present invention, a mounting structure for mounting a photoelectric sensor is provided on the side wall of the shell, the mounting structure includes a mounting groove formed in the side wall of the shell and a mounting seat arranged in the mounting groove, an open groove is formed on the mounting seat, and the photoelectric sensor is arranged in the open groove.

[0009] As a preferred solution of the present invention, the inner diameter of the opening groove gradually decreases along the axial direction of the mounting seat, and the end of the opening groove with a larger inner diameter is arranged toward the blasting space.

[0010] As a preferred solution of the present invention, the installation structure further includes a clamping groove formed on the outer wall of the shell, and a shielding shell for closing the installation groove is provided on the clamping groove.

[0011] As a preferred solution of the present invention, a mounting hole for mounting an electronic detonator is formed on the side wall of the shell, and a channel arranged along the height direction of the shell is provided above the mounting hole, and the channel is connected to the mounting hole.

[0012] As a preferred solution of the present invention, a pin for fixing the sealing structure is provided in the channel, and an end of the pin abuts against the electronic detonator.

[0013] As a preferred solution of the present invention, the sealing structure includes a horizontal panel and a vertical panel connected to each other, a horizontal plug-in slot for plugging the horizontal panel is formed on the side wall of the shell, and a vertical plug-in slot for plugging the vertical panel is formed in the shell.

[0014] As a preferred solution of the present invention, a through hole corresponding to the channel is formed on the horizontal panel, and the latch passes through the through hole and is connected to the channel.

[0015] As a preferred solution of the present invention, a connecting groove is formed on the vertical panel, and the end of the horizontal panel abuts against the connecting groove.

[0016] As a preferred solution of the present invention, a through hole is formed on the vertical panel, the through hole and the photoelectric sensor are located at the same height, and transparent explosion-proof glass is provided in the through hole.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. A sealed structure is provided to protect the photoelectric sensor, ensuring that the photoelectric sensor can timely identify the blasting status of the electronic detonator. The photoelectric sensor collects the flash generated by the blasting of the electronic detonator. By utilizing the objective principle that the propagation speed of the light signal is much greater than the propagation speed of the air vibration wave, the accuracy of the blasting time obtained by the photoelectric sensor is increased. At the same time, since only the flash of the electronic detonator blasting is required, there is no need to increase the size of the air wave generated by the blasting of the electronic detonator to improve the accuracy of the vibration sensor detection. Therefore, no explosives are required during the detonation of the electronic detonator, thereby improving the safety of the detonation of the electronic detonator. In addition, there is no need to use a separate site, reducing space costs.

[0019] 2. Furthermore, the horizontal panel is fixed by means of a provided pin, and the horizontal panel abuts against the connecting groove of the vertical panel, thereby fixing the vertical panel and preventing the horizontal panel and the vertical panel from moving during the blasting process of the electronic detonator; in addition, the end of the pin abuts against the electronic detonator, thereby fixing the electronic detonator. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is a structural diagram of the housing of the utility model;

[0023] Figure 4 This is the principle diagram of the utility model

[0024] Figure markings: shell 1, blasting space 101, mounting hole 1011, channel 1012, horizontal plug-in slot 102, vertical plug-in slot 103, discharge port 104, electronic detonator 2, sealing structure 3, horizontal panel 301, through hole 3011, vertical panel 302, connecting slot 3021, through hole 3022, transparent explosion-proof glass 3023, photoelectric sensor 4, mounting structure 5, mounting slot 501, mounting seat 502, opening slot 5021, snap-on slot 503, shielding shell 504, latch 6. DETAILED DESCRIPTION

[0025] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings.

[0026] like Figure 1-Figure 4As shown, a device for detecting the delay time of an electronic detonator includes a shell 1 and an electronic detonator 2 mounted on the side wall of the shell 1. A sealed blasting space 101 is formed in the shell 1. A photoelectric sensor 4 for detecting the delay time of the electronic detonator 2 is mounted on the side wall of the shell 1. The electronic detonator 2 and the photoelectric sensor 4 are respectively mounted on the side walls of the shell 1 on both sides of the blasting space 101; a sealing structure 3 for sealing the blasting space 101 and protecting the photoelectric sensor 4 is provided on the top of the shell 1.

[0027] Furthermore, the shell 1 is made of explosion-proof material, the electronic detonator 2 is electrically connected to the electronic detonator initiator and the delay detector, the photoelectric sensor 4 is electrically connected to the delay detector, and the electronic detonator initiator is also electrically connected to the delay detector, the electronic detonator 2 is arranged on the side wall of the shell 1, the photoelectric sensor 4 is located on the shell 1, and the photoelectric sensor 4 is arranged toward the electronic detonator 2. The photoelectric sensor 4 collects the fire light generated when the electronic detonator 2 explodes, and utilizes the objective principle that the propagation speed of the light signal is much greater than the propagation speed of the air vibration wave, thereby increasing the accuracy of the explosion time obtained by the photoelectric sensor 4.

[0028] A mounting structure 5 for mounting the photoelectric sensor 4 is provided on the side wall of the shell 1. The mounting structure 5 includes a mounting groove 501 formed in the side wall of the shell 1 and a mounting seat 502 arranged in the mounting groove 501. An opening groove 5021 is formed on the mounting seat 502, and the photoelectric sensor 4 is arranged in the opening groove 5021. Furthermore, the mounting groove 501 passes through the side wall of the shell 1, and the mounting seat 502 is fixedly arranged in the mounting groove 501. The opening groove 5021 is arranged along the axial direction of the mounting seat 502, and the photoelectric sensor 4 is fixedly arranged in the opening groove 5021, so as to prevent the photoelectric sensor 4 from being displaced due to the influence of the vibration wave when the electronic detonator 2 is blasted, resulting in the failure to capture the fire light generated by the blasting of the electronic detonator 2.

[0029] The inner diameter of the opening groove 5021 gradually decreases along the axial direction of the mounting seat 502, and the end of the opening groove 5021 with a larger inner diameter is set toward the blasting space 101. Furthermore, the photoelectric sensor 4 is located at the end of the opening groove 5021 with a smaller inner diameter, and the photoelectric sensor 4 is set toward the end of the opening groove 5021 with a larger inner diameter. The end of the opening groove 5021 with a larger inner diameter is set toward the blasting space 101, thereby ensuring that the photoelectric sensor 4 can timely capture the fire generated by the electronic detonator 2 when it blasts.

[0030] The mounting structure 5 also includes a snap-in groove 503 formed on the outer wall of the shell 1, and a shielding shell 504 is provided on the snap-in groove 503 for closing the mounting groove 501. Furthermore, the snap-in groove 503 is formed on the outer surface of the shell 1, and the snap-in groove 503 is connected to the mounting groove 501. The shielding shell 504 is fixedly arranged in the snap-in groove 503, and the shielding shell 504 is made of black opaque material.

[0031] A mounting hole 1011 for mounting the electronic detonator 2 is formed on the side wall of the shell 1. The electronic detonator 2 is arranged in the mounting hole 1011, and a channel 1012 arranged along the height direction of the shell 1 is provided above the mounting hole 1011. The channel 1012 is connected to the mounting hole 1011. Furthermore, the mounting hole 1011 is located on the side wall of the shell 1 on the opposite side of the photoelectric sensor 4. The mounting hole 1011 is arranged in the direction of the photoelectric sensor 4. The electronic detonator 2 is placed in the mounting hole 1011, and the electronic detonator 2 extends into the blasting space 101. In addition, a channel 1012 arranged along the height direction of the shell 1 is provided on the side wall, and the bottom end of the channel 1012 is connected to the mounting hole 1011.

[0032] In addition, a pin 6 for fixing the sealing structure 3 is provided in the channel 1012, and the end of the pin 6 abuts against the electronic detonator 2. Furthermore, the pin 6 is inserted into the channel 1012, and the electronic detonator 2 is fixed by the gravity of the pin 6.

[0033] The sealing structure 3 includes a horizontal panel 301 and a vertical panel 302 connected to each other. A horizontal plug-in slot 102 for plugging in the horizontal panel 301 is formed on the side wall of the shell 1, and a vertical plug-in slot 103 for plugging in the vertical panel 302 is formed in the shell 1. Furthermore, the end of the horizontal panel 301 abuts against the vertical panel 302, the horizontal plug-in slot 102 is arranged along the horizontal direction of the shell 1, and the horizontal plug-in slot 102 is located on the side walls on opposite sides of the shell 1, and the horizontal panel 301 is plugged into the horizontal plug-in slot 102; the vertical plug-in slot 103 is arranged along the height direction of the shell 1, and the vertical plug-in slot 103 is arranged on the side walls on opposite sides of the shell 1, the vertical panel 302 is plugged into the vertical plug-in slot 103, and the side of the vertical panel 302 abuts against the inner side of the side wall of the shell 1 where the mounting structure 5 is located.

[0034] A through hole 3011 corresponding to the channel 1012 is formed on the horizontal panel 301, and the pin 6 passes through the through hole 3011 and is connected to the channel 1012. Furthermore, when the horizontal panel 301 is inserted into the horizontal insertion slot 102, the through hole 3011 is located just above the channel 1012. One end of the pin 6 passes through the through hole 3011 through the channel 1012 and finally contacts the electronic detonator 2 placed in the mounting hole 1011. The electronic detonator 2 is fixed by the gravity of the pin 6, and the horizontal panel 301 can also be fixed at the same time to prevent the vibration generated by the blasting of the electronic detonator 2 from causing the movement of the horizontal panel 301.

[0035] A connecting groove 3021 is formed on the vertical panel 302, and the end of the horizontal panel 301 abuts against the connecting groove 3021. Furthermore, the connecting groove 3021 is arranged along the width direction of the vertical panel 302. The vertical panel 302 is inserted into the vertical plug-in groove 103, and the horizontal panel 301 is inserted into the horizontal plug-in groove 102. At this time, the end of the horizontal panel 301 abuts against the connecting groove 3021. During the blasting process of the electronic detonator 2, the vertical panel 302 is prevented from moving under the action of the horizontal panel 301.

[0036] A through hole 3022 is formed on the vertical panel 302, and the through hole 3022 is located at the same height as the photoelectric sensor 4. A transparent explosion-proof glass 3023 is provided in the through hole 3022. Furthermore, the through hole 3022 is located at the same height as the mounting groove 501 in the mounting structure 5. The transparent explosion-proof glass 3023 is embedded in the through hole 3022. The fire generated by the explosion of the electronic detonator 2 is transmitted to the photoelectric sensor 4 through the transparent explosion-proof glass 3023. In addition, when the blasting is completed, the vertical panel 302 can be removed to clean up impurities attached to the transparent explosion-proof glass 3023 generated by the explosion of the electronic detonator 2, thereby avoiding inaccurate signal collection by the photoelectric sensor 4 due to the presence of blasting impurities.

[0037] A discharge port 104 for cleaning the blasting space 101 is provided at the bottom of the shell 1 , and waste generated by the blasting of the electronic detonator 2 is cleaned out of the blasting space 101 through the discharge port 104 .

[0038] The detection process is as follows: the electronic detonator initiator sends out a detonation command, the delay detector collects the detonation command, and records the time when the detonation command is collected as t1; after receiving the detonation command, the electronic detonator 2 detonates after the set delay time; the photoelectric sensor 4 collects the detonation of the electronic detonator 2 and generates an electrical signal to transmit to the delay detector; the delay detector analyzes the electrical signal and records the time when the electronic detonator 2 is collected as t2; by calculating the time difference between t2 and t1, the time from the electronic detonator initiator sending out the detonation command to the electronic detonator 2 blasting is obtained to judge whether the delay time of the electronic detonator 2 is within a safe range.

[0039] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0040] Although this document frequently uses the following terms: housing 1, blasting space 101, mounting hole 1011, channel 1012, horizontal plug slot 102, vertical plug slot 103, feed opening 104, electronic detonator 2, sealing structure 3, horizontal panel 301, through hole 3011, vertical panel 302, connecting slot 3021, through hole 3022, transparent explosion-proof glass 3023, photoelectric sensor 4, mounting structure 5, mounting slot 501, mounting seat 502, opening slot 5021, engaging slot 503, shielding shell 504, latch 6, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. An electronic detonator delay time detection device, comprising a housing (1) and an electronic detonator (2) mounted on a side wall of the housing (1), characterized in that: A sealed blasting space (101) is formed in the shell (1); a photoelectric sensor (4) for detecting the delay time of the electronic detonator (2) is installed on the side wall of the shell (1); the electronic detonator (2) and the photoelectric sensor (4) are respectively installed on the side walls of the shell (1) on both sides of the blasting space (101); and a sealing structure (3) for sealing the blasting space (101) and for protecting the photoelectric sensor (4) is provided on the top of the shell (1).

2. The electronic detonator delay time detection device according to claim 1, characterized in that: A mounting structure (5) for mounting a photoelectric sensor (4) is provided on the side wall of the housing (1), the mounting structure (5) comprising a mounting groove (501) formed in the side wall of the housing (1) and a mounting seat (502) disposed in the mounting groove (501), an opening groove (5021) being formed on the mounting seat (502), and the photoelectric sensor (4) being disposed in the opening groove (5021).

3. The electronic detonator delay time detection device according to claim 2, characterized in that: The inner diameter of the opening groove (5021) gradually decreases along the axial direction of the mounting seat (502), and the end of the opening groove (5021) with a larger inner diameter is arranged toward the blasting space (101).

4. The electronic detonator delay time detection device according to claim 2, characterized in that: The mounting structure (5) further comprises a clamping groove (503) formed on the outer wall of the housing (1), and a shielding shell (504) for closing the mounting groove (501) is provided on the clamping groove (503).

5. The electronic detonator delay time detection device according to claim 1, characterized in that: A mounting hole (1011) for mounting an electronic detonator (2) is formed on the side wall of the housing (1), and a channel (1012) arranged along the height direction of the housing (1) is provided above the mounting hole (1011), and the channel (1012) is communicated with the mounting hole (1011).

6. The electronic detonator delay time detection device according to claim 5, characterized in that: A latch (6) for fixing the sealing structure (3) is provided in the channel (1012), and an end of the latch (6) abuts against the electronic detonator (2).

7. The electronic detonator delay time detection device according to claim 5, characterized in that: The sealing structure (3) comprises a horizontal panel (301) and a vertical panel (302) connected to each other; a horizontal plug-in slot (102) for plugging into the horizontal panel (301) is formed on the side wall of the housing (1); and a vertical plug-in slot (103) for plugging into the vertical panel (302) is formed in the housing (1).

8. The electronic detonator delay time detection device according to claim 7, characterized in that: A through hole (3011) corresponding to the channel (1012) is formed on the horizontal panel (301), and the latch (6) passes through the through hole (3011) and is connected to the channel (1012).

9. The electronic detonator delay time detection device according to claim 7, characterized in that: A connecting groove (3021) is formed on the vertical panel (302), and the end of the horizontal panel (301) abuts against the connecting groove (3021).

10. The electronic detonator delay time detection device according to claim 7, characterized in that: A through hole (3022) is formed on the vertical panel (302), the through hole (3022) and the photoelectric sensor (4) are located at the same height, and a transparent explosion-proof glass (3023) is provided in the through hole (3022).

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