Electric heating explosion cap resistance testing device

Abstract

The utility model relates to the technical field of explosion cap resistance testing, in particular to an electric heating explosion cap resistance testing device which is used for detecting the resistance of an explosion cap and comprises a box body unit, a detection unit and a connection unit, the box body unit comprises an outer shell and a supporting frame, and an interval space exists between the supporting frame and the inner side wall of the outer shell. The bottom of the supporting frame is bent outwards, first protrusions are arranged at the four corners of a bottom plate in the outer shell in the direction from the surface of the supporting frame to the supporting frame, each first protrusion is of a hollow cylindrical structure, and a part of the bent position of the supporting frame abuts against the first protrusions. The resistance testing device can effectively prevent the influence of external vibration or impact on the resistance testing device, is high in anti-interference performance, guarantees the stable performance of the resistance testing device, can be inserted into the interval space, and further improves the safety of the resistance testing device.

Description

Technical Field

[0001] This utility model relates to the field of explosion cap resistance testing technology, specifically an electrothermal explosion cap resistance testing device. Background Technology

[0002] An explosion cap is a fire extinguishing safety device, usually installed on a fire extinguishing bottle. When a fire occurs, the explosion cap is activated manually or automatically. The explosion cap is activated by a short circuit inside, causing the fire extinguishing bottle to release the extinguishing agent. Whether the internal resistance of the explosion cap remains stable determines whether the explosion cap will be activated erroneously due to low resistance. Therefore, a resistance measuring device is needed to measure the resistance of the explosion cap to prevent it from being activated erroneously.

[0003] Furthermore, when transporting, storing, and using resistance measuring devices, they should be kept away from corrosive gases and strong magnetic fields, and should be protected from severe vibrations and mechanical shocks, otherwise the measurement values ​​will be inaccurate. At the same time, in actual use, resistance measuring devices need to be used frequently in different scenarios and locations, so they need to be portable.

[0004] In summary, designing a resistance testing device for an electrothermal explosion cap that facilitates resistance measurement, is not easily subjected to severe vibrations and mechanical impacts from the external environment, and is portable has become an urgent problem to be solved. Utility Model Content

[0005] The purpose of this invention is to provide a resistance testing device for an electrothermal explosion cap to solve the above problems.

[0006] To achieve the above objectives, the following technical solutions are provided:

[0007] An electrothermal explosion cap resistance testing device for detecting the resistance of an explosion cap includes: a housing unit, a detection unit, and a connection unit. The housing unit includes an outer shell and a support frame. There is a gap between the support frame and the inner wall of the outer shell. The bottom of the support frame is bent outward. At the four corners of the bottom plate of the inner shell, there is a first protrusion along its surface towards the support frame. The first protrusion is a hollow cylindrical structure. A portion of the bent part of the support frame abuts against the first protrusion and has a through hole. The inner wall of the first protrusion and the inner wall of the opening of the support frame are both provided with internal threads. The outer shell is bolted to the support frame through the first protrusion. The connection unit and the detection unit are both disposed on the support frame and are used for electrical connection with the explosion cap and detection of the resistance of the explosion cap, respectively.

[0008] Preferably, the housing unit further includes a fixed housing and a split housing. The fixed housing is disposed on the left and right sides of the outer wall of the outer housing, and the split housing is disposed on the outer wall of the outer housing where the fixed housing is not disposed. The two ends of the split housing extend outward, bend towards the fixed housing and are fixed thereto. The outer housing is slit along the direction of the split housing on one side, and the corresponding split housing is also slit.

[0009] Preferably, the split shell with slits is further provided with connecting blocks. The upper and lower ends of the connecting blocks are respectively located on both sides of the slit in the split shell. The housing unit also includes reinforcing ribs. The two ends of the reinforcing ribs are respectively fixedly connected to the outer shell and the upper end of the connecting blocks. The lower end of the connecting blocks protrudes outward and is provided with a limiting plate. The housing unit also includes a handle. The two ends of the handle are provided with rotating plates. The rotating plates and the limiting plates are fitted together and pivotally connected by a pin. The handle has the freedom to rotate around the pin.

[0010] Preferably, the housing unit further includes a fastener, the two ends of which are detachably connected and located on both sides of the split shell opening. The fastener is provided with a movable block. When the two ends of the split shell opening are in contact, the two ends of the fastener are connected to each other. When the movable block moves a fixed distance into the fastener, the two ends of the fastener are separated from each other.

[0011] Preferably, the testing unit includes an electric detonator tester and a battery box, both of which are bolted to the support frame. The electric detonator tester is electrically connected to the battery box. The testing unit also includes two rotary switches, both of which are electrically connected to the electric detonator tester. The electric detonator tester is electrically connected to the connection unit through the rotary switches.

[0012] Preferably, the connection unit includes an aviation socket and a drag chain cable, the aviation socket and the drag chain cable are detachably connected, and one end of the aviation socket and the drag chain cable are provided with a limiting groove. The explosion cap includes a DB10 type electric heating explosion cap and a DB11 type electric heating explosion cap, and one end of the DB10 type electric heating explosion cap and the DB11 type electric heating explosion cap are provided with a positioning protrusion, which can be precisely positioned in the limiting groove.

[0013] Preferably, the detection unit further includes an A / B unit switching switch and a line on / off switch, wherein the A / B unit switching switch is used to control the switching between the testing process and the destruction process, and the line on / off switch is used to control the on / off state of the detection unit.

[0014] Preferably, the left and right sides of the inner wall of the housing unit are further provided with protective bodies. The protective bodies include a protective body base, a magnet, a pad, a protective body cover, a toggle bolt, and a hinge. The protective body cover is disposed on the protective body base, the pad is disposed between the protective body cover and the protective body base, the magnet is disposed inside the pad, and a countersunk bolt M4 is provided inside the pad for limiting. One end of the countersunk bolt M4 passes through the protective body cover, the toggle bolt passes through the left and right ends of the protective body cover, and the hinge is bolted to the top of the protective body cover by a countersunk bolt M5.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. This utility model, through the space between the support frame and the inner wall of the outer shell, can effectively prevent the influence of external vibration or impact on the resistance testing device, has strong anti-interference ability, ensures the stable performance of the resistance testing device, and can insert an explosion-proof partition in the space to further enhance the safety of the resistance testing device.

[0017] 2. This utility model, through the combination of a split housing, fasteners, and handle, makes the switching of the resistance detection device easier and more portable. At the same time, the drag chain cable extends the connection range of the aviation socket, making it easier to connect the explosion cap and operate. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a half-sectional schematic diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the explosive cap structure;

[0021] Figure 4 This is a schematic diagram of the structure of one end face of the explosion cap;

[0022] Figure 5 This is a schematic diagram of the structure of one end face of a drag chain cable.

[0023] Figure 6 This is a cross-sectional schematic diagram of the protective structure;

[0024] Figure 7 This is a top view of the protective structure;

[0025] Figure 8 This is a front view schematic diagram of the protective structure;

[0026] In the picture:

[0027] 101-Outer shell, 102-Support frame, 103-First protrusion, 104-Fixed shell, 105-Split shell, 106-Connecting block, 107-Reinforcing rib, 108-Limiting plate, 109-Handle, 110-Rotating plate, 111-Pin, 112-Clip, 113-Modible block;

[0028] 201-Electric detonator tester, 202-Battery box, 203-Rotary switch, 204-A / B unit switching switch, 205-Line on / off switch;

[0029] 301 - Aviation socket, 302 - Drag chain cable, 303 - Limiting groove;

[0030] 401-DB10 type electric heating explosion cap, 402-DB11 type electric heating explosion cap, 403-positioning protrusion;

[0031] 501-Protective body base, 502-Magnet, 503-Padded block, 504-Protective body cover, 505-Counterhead bolt M4, 506-Toggle bolt tongue pin, 507-Hinge, 508-Counterhead bolt M5. Detailed Implementation

[0032] The technical solutions illustrated in the schematic diagrams of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] like Figure 1-8As shown, an electrothermal explosion cap resistance testing device is used to detect the resistance of the explosion cap. It includes a housing unit, a detection unit, and a connection unit. The housing unit includes an outer shell 101 and a support frame 102. There is a gap between the support frame 102 and the inner wall of the outer shell 101. The bottom of the support frame 102 is bent outwards. At the four corners of the inner bottom plate of the outer shell 101, a first protrusion 103 is provided along its surface towards the support frame 102. The first protrusion 103 is a hollow cylindrical structure. A portion of the bent part of the support frame 102 abuts against the first protrusion 103 and has a through-hole. The inner wall of the outer shell 101 and the inner wall of the support frame 102 at the opening are both provided with internal threads. The outer shell 101 is bolted to the support frame 102 through the first protrusion 103. The connection unit and the detection unit are both set on the support frame 102, which are used for electrical connection with the explosion cap and detection of the resistance of the explosion cap, respectively. The space between the support frame 102 and the inner wall of the outer shell 101 can effectively prevent the influence of external vibration or impact on the resistance testing device, which has strong anti-interference ability, ensures the stable performance of the resistance testing device, and can insert an explosion-proof partition in the space to further enhance the safety of the resistance testing device.

[0034] In some embodiments, the housing unit further includes a fixed housing 104 and a split housing 105. The fixed housing 104 is disposed on the left and right sides of the outer wall of the outer housing 101, and the split housing 105 is disposed on the outer wall of the outer housing 101 where the fixed housing 104 is not disposed. The two ends of the split housing 105 extend outward, bend towards the fixed housing 104 and are fixed thereto. The outer housing 101 is slit along the direction of the split housing 105 on one side, and the corresponding split housing 105 is also slit.

[0035] In some embodiments, the split housing 105 with slits is also provided with a connecting block 106. The upper and lower ends of the connecting block 106 are respectively located on both sides of the slit of the split housing 105. The housing unit also includes a reinforcing rib 107. The two ends of the reinforcing rib 107 are respectively fixedly connected to the outer housing 101 and the upper end of the connecting block 106. The lower end of the connecting block 106 protrudes outward and is provided with a limiting plate 108. The housing unit also includes a handle 109. The two ends of the handle 109 are provided with rotating plates 110. The rotating plates 110 and the limiting plates 108 are fitted together and pivotally connected by a pin 111. The handle 109 has the freedom to rotate around the pin 111.

[0036] In some embodiments, the housing unit further includes a fastener 112, the two ends of which are detachably connected and located on both sides of the slit of the split housing 105. The fastener 112 is provided with a movable block 113. When the two ends of the slit of the split housing 105 are in contact, the two ends of the fastener 112 are connected to each other. When the movable block 113 moves a fixed distance into the fastener 112, the two ends of the fastener 112 are separated from each other.

[0037] In some embodiments, the detection unit includes an electric detonator tester 201 and a battery box 202, both of which are bolted to the support frame 102. The electric detonator tester 201 is electrically connected to the battery box 202. The detection unit also includes two rotary switches 203, both of which are electrically connected to the electric detonator tester 201. The electric detonator tester 201 is electrically connected to the connection unit through the rotary switches 203.

[0038] In some embodiments, the connection unit includes an aviation socket 301 and a drag chain cable 302. The aviation socket 301 and the drag chain cable 302 are detachably connected. One end of both the aviation socket 301 and the drag chain cable 302 is provided with a limiting groove 303. The explosion cap includes a DB10 type electric heating explosion cap 401 and a DB11 type electric heating explosion cap 402. One end of both the DB10 type electric heating explosion cap 401 and the DB11 type electric heating explosion cap 402 is provided with a positioning protrusion 403. The positioning protrusion 403 can be precisely positioned in the limiting groove 303. Through the cooperation of the split shell 105, the fastener 112 and the handle 109, the resistance detection device is easier to switch on and off and is easier to carry. At the same time, the drag chain cable 302 extends the connection range of the aviation socket 301, making it easier to connect the explosion cap and easier to operate.

[0039] In some embodiments, the detection unit further includes an A / B unit switching switch 204 and a line on / off switch 205. The A / B unit switching switch 204 is used to control the switching between the test process and the destruction process, and the line on / off switch 205 is used to control the on / off state of the detection unit.

[0040] In some embodiments, protective bodies are also provided on the left and right sides of the inner wall of the housing unit. The protective bodies include a protective body base 501, a magnet 502, a pad 503, a protective body cover 504, a toggle bolt 506, and a hinge 507. The protective body cover 504 is disposed on the protective body base 501, the pad 503 is disposed between the protective body cover 504 and the protective body base 501, the magnet 502 is disposed inside the pad 503, and a countersunk bolt M4 505 is provided inside the pad 503 for limiting the movement. One end of the countersunk bolt M4 505 passes through the protective body cover 504, the toggle bolt 506 passes through the left and right ends of the protective body cover 504, and the hinge 507 is bolted to the top of the protective body cover 504 by a countersunk bolt M5 508.

Claims

1. A resistance testing device for an electrically heated explosion cap, used to detect the resistance of the explosion cap, characterized in that: include: The enclosure unit comprises a housing, a detection unit, and a connection unit. The housing unit includes an outer shell and a support frame. There is a gap between the support frame and the inner wall of the outer shell. The bottom of the support frame is bent outward. At the four corners of the bottom plate of the outer shell, there is a first protrusion along its surface towards the support frame. The first protrusion is a hollow cylindrical structure. A portion of the bent part of the support frame abuts against the first protrusion and has a through hole. The inner wall of the first protrusion and the inner wall of the opening of the support frame are both provided with internal threads. The outer shell is bolted to the support frame through the first protrusion. The connection unit and the detection unit are both disposed on the support frame and are used for electrical connection with the explosion cap and detection of the resistance of the explosion cap, respectively.

2. The resistance testing device for an electrothermal explosion cap according to claim 1, characterized in that: The housing unit also includes a fixed housing and a split housing. The fixed housing is disposed on the left and right sides of the outer wall of the outer housing. The split housing is disposed on the outer wall of the outer housing where the fixed housing is not disposed. The two ends of the split housing extend outward, bend towards the fixed housing and are fixed thereto. The outer housing is slit along the direction of the split housing on one side, and the corresponding split housing is also slit.

3. The resistance testing device for an electrothermal explosion cap according to claim 2, characterized in that: The split shell with slits is also provided with connecting blocks. The upper and lower ends of the connecting blocks are respectively located on both sides of the slit in the split shell. The box unit also includes reinforcing ribs. The two ends of the reinforcing ribs are respectively fixedly connected to the outer shell and the upper end of the connecting blocks. The lower end of the connecting blocks protrudes outward and is provided with a limiting plate. The box unit also includes a handle. The two ends of the handle are provided with rotating plates. The rotating plates and the limiting plates are fitted together and pivotally connected by a pin. The handle has the freedom to rotate around the pin.

4. The resistance testing device for an electrothermal explosion cap according to claim 3, characterized in that: The housing unit also includes a fastener, with its two ends detachably connected and located on both sides of the split shell opening. The fastener has a movable block. When the two ends of the split shell opening contact each other, the two ends of the fastener are connected to each other. When the movable block moves a fixed distance into the fastener, the two ends of the fastener separate from each other.

5. The resistance testing device for an electrothermal explosion cap according to claim 4, characterized in that: The testing unit includes an electric detonator tester and a battery box, both of which are bolted to a support frame. The electric detonator tester is electrically connected to the battery box. The testing unit also includes two rotary switches, both of which are electrically connected to the electric detonator tester. The electric detonator tester is electrically connected to a connection unit via the rotary switches.

6. The resistance testing device for an electrothermal explosion cap according to claim 5, characterized in that: The connection unit includes an aviation socket and a drag chain cable. The aviation socket and the drag chain cable are detachably connected. One end of both the aviation socket and the drag chain cable is provided with a limiting groove. The explosion cap includes a DB10 type electric heating explosion cap and a DB11 type electric heating explosion cap. One end of both the DB10 type electric heating explosion cap and the DB11 type electric heating explosion cap is provided with a positioning protrusion. The positioning protrusion can be precisely positioned in the limiting groove.

7. The resistance testing device for an electrothermal explosion cap according to claim 6, characterized in that: The detection unit also includes an A / B unit switching switch and a line on / off switch. The A / B unit switching switch is used to control the switching between the testing process and the destruction process, and the line on / off switch is used to control the on / off state of the detection unit.

8. The resistance testing device for an electrothermal explosion cap according to claim 7, characterized in that: The left and right sides of the inner wall of the enclosure unit are also provided with protective bodies. The protective bodies include a protective body base, a magnet, a pad, a protective body cover, a toggle bolt, and a hinge. The protective body cover is set on the protective body base, the pad is set between the protective body cover and the protective body base, the magnet is set inside the pad, and a countersunk bolt M4 is set inside the pad for limiting. One end of the countersunk bolt M4 passes through the protective body cover. The toggle bolt passes through the left and right ends of the protective body cover. The hinge is bolted to the top of the protective body cover by a countersunk bolt M5.

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