A pneumatic testing device for the bending resistance of electronic detonators

Abstract

The present invention and the technical field of industrial detonator performance testing specifically relate to a pneumatic detection device for the anti-bending performance of an electronic detonator, comprising a frame, on which a support mechanism for fixing the electronic detonator, a mounting mechanism for applying torque to the electronic detonator, and a pneumatic support mechanism for supporting the mounting mechanism are provided; when the electronic detonator bends under the action of torque, the mounting mechanism moves downward under the action of gravity; during the downward movement of the mounting mechanism, when the pneumatic support mechanism contacts the mounting mechanism, the pneumatic support mechanism provides a supporting force to the mounting mechanism, and the mounting mechanism no longer applies torque to the electronic detonator. The present invention realizes the function of quickly stopping the pressure when the deformation of the electronic detonator exceeds a specified value. It can effectively improve the safety and reliability of the test, reduce the risk of accidental detonation of the electronic detonator, and protect the safety of the operator and the test equipment. It solves the problem of excessive deformation of the electronic detonator due to the inability to stop the pressure in time during the test.

Description

Technical Field

[0001] The invention relates to the technical field of industrial detonator performance testing, and in particular to a pneumatic detection device for the anti-bending performance of electronic detonators. Background Art

[0002] In order to ensure the stability of electronic detonators during transportation, storage and use, it is necessary to test the mechanical strength of the outer shell and internal structure of the electronic detonator. Among them, the test of anti-bending performance is particularly important. When the electronic detonator is subjected to external force, if the structural strength is insufficient, it may cause internal chemical leakage or circuit short circuit, thus causing accidental detonation. However, when carrying out mass production, it is usually necessary to conduct multiple groups of tests, each group testing multiple samples. If it is done manually, it is extremely cumbersome, and once an error occurs, it may cause a safety accident.

[0003] To this end, a Chinese patent application with publication number CN119023445A discloses an industrial detonator bending resistance test device, which places detonator samples in an arrangement tube in sequence. When the fan-shaped transmission plate rotates and the outer wall of the transmission plate at the center of the circle contacts the clamping wheel, the detonator sample in the arrangement tube falls into the receiving groove of the support rod. When the outer wall of the transmission plate away from the center of the circle contacts the clamping wheel, the detonator sample is pushed forward to align the weakest part of the detonator sample with the front end of the support rod, control the test hydraulic rod to descend, press down the end of the detonator sample, observe and record the damage of the detonator sample such as breakage or bending, and automatically complete the test of all detonator samples according to the above operation process.

[0004] However, existing test devices use hydraulic rods to apply pressure to samples. In order to ensure the stability of the pressure value, sensors are usually installed to detect the pressure value. During the test, once the bending exceeds the specified range, the pressure must be stopped quickly to avoid product damage, safety hazards, and data distortion. In order to maintain the stability of the pressure, the hydraulic rod needs to extend the hydraulic rod as the sample bends to maintain the stability of the pressure on the sample. If the sample bends quickly, causing the pressure value to drop sharply, the controller can stop applying pressure based on the abnormality detected by the sensor. However, if the sample deforms slowly for a long time, the controller cannot sense the abnormality and the hydraulic rod will remain in the pressure state, causing a safety accident. Summary of the invention

[0005] In view of the above problems, a pneumatic testing device for the anti-bending performance of electronic detonators is provided. The device solves the problem of excessive deformation of electronic detonators due to the inability to stop applying pressure in time during the test process through a frame, a supporting mechanism, a mounting mechanism and a pneumatic supporting mechanism.

[0006] In order to solve the problems of the prior art, the present invention provides a pneumatic detection device for the anti-bending performance of electronic detonators, comprising a frame, on which are provided a supporting mechanism for fixing the electronic detonator, a mounting mechanism for applying torque to the electronic detonator, and a pneumatic supporting mechanism for supporting the mounting mechanism; when the electronic detonator bends under the action of the torque, the mounting mechanism moves downward under the action of gravity; during the downward movement of the mounting mechanism, when the pneumatic supporting mechanism contacts the mounting mechanism, the pneumatic supporting mechanism provides supporting force to the mounting mechanism, and the mounting mechanism no longer applies torque to the electronic detonator.

[0007] Preferably, an adjusting mechanism is provided on the frame, and the adjusting mechanism is used to adjust the pressure position of the mounting mechanism on the electronic detonator.

[0008] Preferably, the adjustment mechanism includes a support member and an adjustment assembly; the support member can be slidably arranged on the frame along the horizontal direction, and the mounting mechanism can be lifted and lowered on the support member; the adjustment assembly is used to adjust the position of the support member.

[0009] Preferably, the mounting mechanism includes a sleeve and a weight; the weight is connected to the sleeve, and when the electronic detonator is in an installed state, the electronic detonator passes through the sleeve and cooperates with the supporting mechanism; when the weight is in a suspended state, the gravity exerted on the weight is transmitted to the electronic detonator through the sleeve.

[0010] Preferably, the pneumatic lifting mechanism includes a supporting platform and a lifting assembly; the supporting platform can be slidably arranged on the frame along the vertical direction; the lifting assembly is used to drive the supporting platform to rise and fall.

[0011] Preferably, a second sleeve capable of sliding in a horizontal direction is provided on the supporting platform, and the weight can be raised and lowered in sliding cooperation with the second sleeve.

[0012] Preferably, the weight comprises a first counterweight block and a second counterweight block, and the first counterweight block is connected to the second counterweight block.

[0013] Preferably, the adjustment mechanism comprises a first transmission assembly, and the first sleeve is transmission-connected to the support member via the first transmission assembly.

[0014] Preferably, the first transmission assembly includes a transmission rod, and both ends of the transmission rod are respectively connected to a first connecting member and a second connecting member, and the first connecting member and the second connecting member are respectively connected to the support member and the second sleeve.

[0015] Preferably, a reset assembly is provided on the support member, and the reset assembly includes a third connecting member and an elastic member; the third connecting member is connected to the support member; and both ends of the elastic member are respectively connected to the third connecting member and the sleeve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention realizes the function of quickly stopping the pressure when the deformation of the electronic detonator exceeds a specified value through a frame, a supporting mechanism, a mounting mechanism and a pneumatic supporting mechanism. Once the electronic detonator bends, the mounting mechanism moves downward under the action of gravity. When the supporting mechanism contacts the mounting mechanism, it provides a supporting force to the mounting mechanism. The gravity of the mounting mechanism acts on the supporting mechanism, so that the mounting mechanism no longer applies torque to the electronic detonator, thereby preventing the electronic detonator from further bending. It can effectively improve the safety and reliability of the test, reduce the risk of accidental detonation of the electronic detonator, and protect the safety of the operator and the test equipment. It solves the problem of excessive deformation of the electronic detonator due to the inability to stop the pressure in time during the test.

[0018] 2. The present invention realizes the function of adjusting the pressure position of the mounting mechanism through the adjustment mechanism. Electronic detonators usually have the weakest strength position. In order to improve the test accuracy, it is necessary to accurately locate the pressure position. For this reason, an adjustment mechanism is provided to adjust the pressure position of the mounting mechanism. Then, the test position can be accurately adjusted according to the size of the electronic detonator, thereby improving the accuracy of the test.

[0019] 3. The present invention realizes the function of applying pressure to the electronic detonator through the casing and the weight, and through the setting of the weight, it can quickly apply a specified pressure to the electronic detonator, and can keep the pressure constant, thereby improving the accuracy of the test. The casing is connected to the weight through a steel cable, and by replacing the weight of a specified weight, the pressure value provided by the mounting mechanism can be quickly and accurately adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of a pneumatic detection device for the anti-bending performance of an electronic detonator in a detection state according to the present invention.

[0021] Figure 2 It is a three-dimensional schematic diagram of a pneumatic detection device for the anti-bending performance of an electronic detonator in a reset state according to the present invention.

[0022] Figure 3 It is a three-dimensional schematic diagram of a top plate in a pneumatic detection device for the anti-bending performance of an electronic detonator according to the present invention.

[0023] Figure 4 It is a three-dimensional schematic diagram of a supporting mechanism and an adjusting mechanism in a pneumatic detection device for the anti-bending performance of an electronic detonator of the present invention.

[0024] Figure 5 The present invention Figure 4 A local enlarged schematic diagram of point A in the middle.

[0025] Figure 6 It is a three-dimensional schematic diagram of a mounting mechanism in a pneumatic detection device for the anti-bending performance of an electronic detonator according to the present invention.

[0026] Figure 7 It is a three-dimensional schematic diagram of a support member, a sleeve and a reset assembly in a pneumatic detection device for the anti-bending performance of an electronic detonator of the present invention.

[0027] Figure 8 It is a stereoscopic schematic diagram of a supporting platform in a pneumatic detection device for the anti-bending performance of an electronic detonator according to the present invention, from a first viewing angle.

[0028] Fig. 9 It is a stereoscopic schematic diagram of a second viewing angle of a supporting platform in a pneumatic detection device for the anti-bending performance of an electronic detonator according to the present invention.

[0029] Fig.10 It is a three-dimensional schematic diagram of a support member and a first transmission assembly in a pneumatic detection device for the anti-bending performance of an electronic detonator of the present invention.

[0030] The numbers in the figure are: 1, frame; 11, bottom plate; 111, column; 112, second guide rail; 12, top plate; 121, bracket; 1211, first guide rail; 122, baffle; 2, support mechanism; 21, mounting seat; 3, mounting mechanism; 31, sleeve; 311, limit block; 32, weight; 321, first counterweight block; 322, second counterweight block; 323, third counterweight block; 324, guide rod; 33, steel cable; 4, pneumatic top support mechanism; 41, support platform; 411, first sleeve; 41 2. Second sleeve; 42. Lifting assembly; 421. Linear drive; 5. Adjusting mechanism; 51. Support member; 511. Slide rail; 52. Adjusting assembly; 521. Screw rod; 522. Rotary drive; 53. First transmission assembly; 531. Transmission rod; 532. First connecting member; 533. Second connecting member; 54. Second transmission assembly; 541. Pulley; 542. Synchronous belt; 543. Rotating gear; 55. Reset assembly; 551. Third connecting member; 552. Elastic member; 6. Electronic detonator. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figure 1-Figure 3 : A pneumatic detection device for the bending resistance of electronic detonators, comprising a frame 1, on which are provided a supporting mechanism 2 for fixing the electronic detonator 6, a mounting mechanism 3 for applying torque to the electronic detonator 6, and a pneumatic supporting mechanism 4 for supporting the mounting mechanism 3; when the electronic detonator 6 bends under the action of torque, the mounting mechanism 3 moves downward under the action of gravity; during the downward movement of the mounting mechanism 3, when the pneumatic supporting mechanism 4 contacts the mounting mechanism 3, the pneumatic supporting mechanism 4 provides supporting force to the mounting mechanism 3, and the mounting mechanism 3 no longer applies torque to the electronic detonator 6.

[0033] The present invention realizes the function of quickly stopping the pressure application when the deformation degree of the electronic detonator 6 exceeds the specified value through the frame 1, the supporting mechanism 2, the mounting mechanism 3 and the pneumatic supporting mechanism 4. Once the electronic detonator 6 is bent, the mounting mechanism 3 moves downward under the action of gravity. When the pneumatic supporting mechanism 4 contacts the mounting mechanism 3, it provides a supporting force to the mounting mechanism 3. The gravity of the mounting mechanism 3 acts on the pneumatic supporting mechanism 4, so that the mounting mechanism 3 no longer applies torque to the electronic detonator 6, thereby preventing the electronic detonator 6 from further bending. It can effectively improve the safety and reliability of the test, reduce the risk of accidental detonation of the electronic detonator 6, and protect the safety of the operator and the test equipment. It solves the problem of excessive deformation of the electronic detonator 6 due to the inability to stop the pressure in time during the test.

[0034] The frame 1 includes a bottom plate 11 and a top plate 12. The bottom plate 11 is provided with a column 111, and the top of the column 111 is connected to the top plate 12. The pneumatic support mechanism 4 is arranged on the bottom plate 11. The support mechanism 2 includes a mounting seat 21, which is mounted on the top plate 12, and the mounting seat 21 has a built-in fixture for fixing the electronic detonator 6.

[0035] In the working state, the operator first controls the pneumatic support mechanism 4 to move upward, and supports the mounting mechanism 3 through the pneumatic support mechanism 4. Then, the electronic detonator 6 is installed on the mounting seat 21, and the electronic detonator 6 is fixed by the fixture built into the mounting seat 21. Then, the pneumatic support mechanism 4 is controlled to move downward, so that the pneumatic support mechanism 4 no longer supports the mounting mechanism 3. At this time, the mounting mechanism 3 transfers the gravity it receives to the electronic detonator 6 for isolated observation. After the specified time is reached, the pneumatic support mechanism 4 is controlled to move upward again, and then the electronic detonator 6 is taken out to observe the changes in the electronic detonator 6.

[0036] Reference Figure 1 and Figure 2 : An adjusting mechanism 5 is provided on the frame 1, and the adjusting mechanism 5 is used to adjust the pressure position of the mounting mechanism 3 on the electronic detonator 6.

[0037] The present invention realizes the function of adjusting the pressure position of the mounting mechanism 3 through the adjustment mechanism 5. The electronic detonator 6 usually has the weakest strength position. In order to improve the accuracy of the test, it is necessary to accurately locate the pressure position, and manual positioning is not only extremely cumbersome, but also cannot guarantee the consistency of the test. For this reason, the adjustment mechanism 5 is set to adjust the pressure position of the mounting mechanism 3. And during the test, it is necessary to apply a radial load of 50N±0.1N to the main charge and the electronic control module of the electronic detonator 6 respectively, and ensure that the electronic detonator 6 should not explode during the test, and the tube shell should not have obvious cracks or creases.

[0038] Reference Figure 1-Figure 5: The adjustment mechanism 5 includes a support member 51 and an adjustment assembly 52; the support member 51 can be slidably arranged on the frame 1 along the horizontal direction, and the mounting mechanism 3 can be lifted and lowered on the support member 51; the adjustment assembly 52 is used to adjust the position of the support member 51.

[0039] The present invention realizes the function of adjusting the position of the mounting mechanism 3 through the support member 51 and the adjustment assembly 52. ​​The test position can be accurately adjusted according to the size of the electronic detonator 6, thereby improving the accuracy of the test.

[0040] A bracket 121 for separating the test stations is provided on the top plate 12, so that a plurality of test stations are formed on the top plate 12. A first guide rail 1211 and a baffle 122 are provided at each test station, and the first guide rail 1211 and the baffle 122 are both connected to the bracket 121. The detection device includes a controller for human-computer interaction, and the adjustment component 52 includes a screw 521 and a rotary driver 522, the screw 521 is rotatably arranged on the bracket 121, the screw 521 is threadedly connected to the support member 51, and the rotary driver 522 is transmission-connected to the screw 521. The rotary driver 522 is preferably a servo motor, and the rotary driver 522 is electrically connected to the controller. A second transmission assembly 54 is provided on the top plate 12. The second transmission assembly 54 includes a pulley 541, a synchronous belt 542 and a rotating gear 543. The pulley 541 is sleeved on the screw 521, and each test station is provided with a screw 521. The pulleys 541 on adjacent screws 521 on the same side are connected by a synchronous belt 542. The driving end of the rotating driver 522 and the screw 521 adjacent to the rotating driver 522 are connected by the pulley 541 and the synchronous belt 542. The rotating gears 543 are sleeved on the two adjacent screws 521, and the two rotating gears 543 are meshed and connected. The spiral directions of the two screws 521 are opposite, so that when the two screws 521 rotate in opposite directions, the support members 51 in the two test stations can move in the same direction.

[0041] In the working state, the operator installs the electronic detonator 6 on the mounting seat 21, and pushes the electronic detonator 6 until the end of the electronic detonator 6 abuts against the baffle 122, and then fixes the electronic detonator 6 through the fixture in the mounting seat 21. Then the operator sends a signal to the rotary driver 522 through the controller, and the rotary driver 522 drives the screw 521 to rotate, and the screw 521 drives the support member 51 threadedly connected thereto to move along the first guide rail 1211, and the multiple screws 521 rotate at the same speed through the transmission of the synchronous belt 542 and the rotating gear 543, and the support members 51 of multiple test stations move synchronously by controlling the rotation direction. The support member 51 drives the mounting mechanism 3 to move, and then adjusts the position of the mounting mechanism 3. After the adjustment is completed, the pneumatic support mechanism 4 is controlled to move downward. After the pneumatic support mechanism 4 is separated from the mounting mechanism 3, the mounting mechanism 3 is suspended on the electronic detonator 6, and then pressure is applied to the electronic detonator 6. After the test is completed, the pneumatic support mechanism 4 is controlled to reset to support the mounting mechanism 3. After the electronic detonator 6 is taken out, the deformation of the main charge and the electronic control module of the electronic detonator 6 is observed.

[0042] Reference Figure 1 , Figure 2 , Figure 6 and Figure 7 : The mounting mechanism 3 includes a sleeve 31 and a weight 32; the weight 32 is connected to the sleeve 31, and when the electronic detonator 6 is in the installed state, the electronic detonator 6 passes through the sleeve 31 and cooperates with the supporting mechanism 2; when the weight 32 is in a suspended state, the gravity exerted on the weight 32 is transmitted to the electronic detonator 6 through the sleeve 31.

[0043] The present invention realizes the function of applying pressure to the electronic detonator 6 through the sleeve 31 and the weight 32, and through the setting of the weight 32, a pressure of a specified size can be quickly applied to the electronic detonator 6, and the pressure can be kept constant, thereby improving the accuracy of the test. The inner diameter of the sleeve 31 is larger than the outer diameter of the electronic detonator 6, so as to avoid the situation where the electronic detonator 6 is deformed and difficult to remove. The sleeve 31 is connected to the weight 32 through a steel cable 33. By replacing the weight 32 of a specified weight, the pressure value provided by the mounting mechanism 3 can be quickly and accurately adjusted. A limit block 311 is provided on the sleeve 31, and a slide rail 511 is provided on the support member 51. The limit block 311 and the slide rail 511 are slidably matched. When the sleeve 31 squeezes the electronic detonator 6 under the pressure transmitted by the steel cable 33, causing the electronic detonator 6 to deform, the sleeve 31 moves downward and drives the limit block 311 to move synchronously, and the limit block 311 moves along the slide rail 511 until the limit block 311 abuts against the end of the slide rail 511, and the slide rail 511 limits the further movement of the limit block 311 and the sleeve 31. The cooperation between the slide rail 511 and the limit block 311 limits the lifting range of the sleeve 31, and further prevents the electronic detonator 6 from being greatly deformed.

[0044] Reference Figure 1 , Figure 2 and Figure 8 : The pneumatic supporting mechanism 4 includes a supporting platform 41 and a lifting assembly 42; the supporting platform 41 can be slidably arranged on the frame 1 along the vertical direction; the lifting assembly 42 is used to drive the supporting platform 41 to rise and fall.

[0045] The present invention realizes the function of supporting the weight 32 through the supporting platform 41 and the lifting assembly 42. The lifting assembly 42 includes a linear drive 421, and the linear drive 421 is preferably a linear cylinder. The linear cylinder is controlled by a 2-position 5-way solenoid valve, and the linear drive 421 is electrically connected to the controller. A first sleeve 411 is provided on the supporting platform 41, and the first sleeve 411 is connected to the supporting platform 41 by bolts, and the first sleeve 411 is slidably matched with the column 111. The column 111 and the first sleeve 411 are each provided with at least two, and the supporting platform 41 is supported and guided by the cooperation of the column 111 and the first sleeve 411. In order to ensure the safety of the detection, the detection equipment is arranged in an isolation room, and the isolation room is provided with an openable and closable protective steel plate, and the isolation room is not shown in the figure.

[0046] In the working state, the operator installs the electronic detonator 6 on the mounting seat 21, then closes the protective steel plate, and sends a signal to the linear driver 421 through the controller outside the isolation room. The linear driver 421 drives the support platform 41 to move downward, so that the support platform 41 is separated from the weight 32, and the weight 32 is naturally suspended, so that the sleeve 31 applies a radial load to the electronic detonator 6 and maintains the load for at least 5 seconds. Subsequently, the support platform 41 is driven upward by the linear driver 421, and the weight 32 is supported by the support platform 41. Then the operator removes the electronic detonator 6 and observes the deformation of the electronic detonator 6.

[0047] Reference Fig. 9 and Fig.10 A second sleeve 412 capable of sliding in a horizontal direction is disposed on the supporting platform 41, and the weight 32 can be lifted and lowered in sliding cooperation with the second sleeve 412.

[0048] The present invention realizes the function of guiding the weight 32 to rise and fall through the second sleeve 412. Through the provision of the second sleeve 412, the weight 32 can be supported laterally to avoid the situation where the weight 32 swings during the test and causes unstable pressure. During the test, once the weight 32 swings, the pressure direction applied by the mounting mechanism 3 to the electronic detonator 6 will be deflected under the action of inertia, thereby causing the pressure value in the vertical direction to fluctuate. For this reason, the second sleeve 412 is provided to limit the moving direction of the weight 32.

[0049] Reference Figure 2 and Figure 6The weight 32 includes a first counterweight block 321 and a second counterweight block 322 , and the first counterweight block 321 is connected to the second counterweight block 322 .

[0050] The present invention realizes the function of graded testing through the first counterweight block 321 and the second counterweight block 322. The weight 32 is composed of at least two counterweight blocks. Figure 6 Three counterweights are shown, and the multiple counterweights are connected by a steel cable 33. The first counterweight 321, the second counterweight 322 and the third counterweight 323 are spaced from bottom to top, and the outer diameters of the first counterweight 321, the second counterweight 322 and the third counterweight 323 are distributed from small to large, so that the second counterweight 322 and the third counterweight 323 cannot pass through the second sleeve 412. A guide rod 324 is provided on the first counterweight 321, and the second counterweight 322 and the third counterweight 323 are both slidably matched with the guide rod 324, and a limit ring is provided at one end of the guide rod 324 away from the first counterweight 321. The first counterweight 321, the second counterweight 322 and the third counterweight 323 are kept coaxially matched through the cooperation of the guide rod 324, thereby preventing the first counterweight 321, the second counterweight 322 and the third counterweight 323 from shaking during the test. During the test, the lifting assembly 42 controls the support platform 41 to move upward. When the support platform 41 contacts the first counterweight block 321 at the bottom, the first counterweight block 321 is propped up. At this time, only the second counterweight block 322 and the third counterweight block 323 transfer the gravity to the sleeve 31 through the steel cable 33, and apply it to the electronic detonator 6 through the sleeve 31. Similarly, the lifting assembly 42 continues to drive the support platform 41 to move upward. When the first counterweight block 321 contacts the second counterweight block 322, the support platform 41 props up the first counterweight block 321 and the second counterweight block 322; at this time, the electronic detonator 6 is only subjected to the pressure transmitted by the third counterweight block 323. After the test is completed, if the electronic detonator 6 does not explode during the test, the operator removes the electronic detonator 6 and observes whether there are obvious cracks or creases on the tube shell. Through the above steps, the bending resistance of the electronic detonator 6 can be effectively tested to ensure its stability and safety in actual use. At the same time, the testing machine has reasonable design and easy operation, which can improve work efficiency and test accuracy.

[0051] Reference Figure 2 : The adjusting mechanism 5 includes a first transmission assembly 53, and the first sleeve 411 is transmission-connected to the support member 51 via the first transmission assembly 53.

[0052] The present invention realizes the function of controlling the synchronous movement of the support member 51 and the first sleeve 411 through the first transmission assembly 53. When the adjustment assembly 52 drives the support member 51 to move, the support member 51 drives the first sleeve 411 to move synchronously through the first transmission assembly 53, and then drives the weight 32 to move synchronously through the first sleeve 411, thereby preventing the steel cable 33 from tilting and affecting the pressure transmission.

[0053] Reference Figure 2 , Fig. 9 and Fig.10 The first transmission assembly 53 includes a transmission rod 531, and the two ends of the transmission rod 531 are respectively connected to a first connecting member 532 and a second connecting member 533, and the first connecting member 532 and the second connecting member 533 are respectively connected to the support member 51 and the second sleeve 412.

[0054] The present invention realizes the function of pulling the second sleeve 412 to move through the transmission rod 531, the first connecting member 532 and the second connecting member 533. The second connecting member 533 is slidably matched with the transmission rod 531, so that the second connecting member 533 can slide relative to the transmission rod 531 in the vertical direction, and a boss is provided on the second connecting member 533, and the transmission rod 531 and the boss of the second connecting member 533 are slidably matched. The structural strength of the second connecting member 533 is further improved by the setting of the boss. When the adjustment component 52 drives the support member 51 to move, the support member 51 drives the transmission rod 531 to move through the first connecting member 532. The transmission rod 531 pushes the second connecting member 533 to move, the second connecting member 533 drives the second sleeve 412 to move, and the second sleeve 412 pushes the weight 32 to move synchronously. A second guide rail 112 for guiding the transmission rod 531 to slide is provided on the bottom plate 11.

[0055] Reference Figure 4 and Figure 7 : A reset assembly 55 is provided on the support member 51, and the reset assembly 55 includes a third connecting member 551 and an elastic member 552; the third connecting member 551 is connected to the support member 51; both ends of the elastic member 552 are respectively connected to the third connecting member 551 and the sleeve 31.

[0056] The present invention realizes the function of controlling the sleeve 31 to reset through the third connecting member 551 and the elastic member 552. When the lifting assembly 42 controls the support platform 41 to reset and the weight 32 is supported by the support platform 41, the sleeve 31 is reset under the elastic force of the elastic member 552, so that the axis of the sleeve 31 is collinear with the axis of the through hole on the mounting seat 21.

[0057] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A pneumatic testing device for the bending resistance of electronic detonators, characterized in that: The machine frame (1) is provided with a support mechanism (2) for fixing an electronic detonator (6), a mounting mechanism (3) for applying torque to the electronic detonator (6), and a pneumatic support mechanism (4) for supporting the mounting mechanism (3); When the electronic detonator (6) bends under the action of torque, the mounting mechanism (3) moves downward under the action of gravity; during the downward movement of the mounting mechanism (3), when the pneumatic support mechanism (4) contacts the mounting mechanism (3), the pneumatic support mechanism (4) provides a supporting force to the mounting mechanism (3), and the mounting mechanism (3) no longer applies torque to the electronic detonator (6); An adjusting mechanism (5) is provided on the frame (1), and the adjusting mechanism (5) is used to adjust the pressure position of the mounting mechanism (3) on the electronic detonator (6); The adjustment mechanism (5) comprises a support member (51) and an adjustment component (52); The support member (51) is slidably arranged on the frame (1) in a horizontal direction, and the mounting mechanism (3) is movably arranged on the support member (51); The adjustment component (52) is used to adjust the position of the support member (51); The pneumatic supporting mechanism (4) comprises a supporting platform (41) and a lifting assembly (42); the supporting platform (41) is provided with a second sleeve (412) capable of sliding in a horizontal direction; the weight (32) can be lifted and lowered to slide with the second sleeve (412); The adjustment mechanism (5) comprises a first transmission assembly (53), and the second sleeve (412) is transmission-connected to the support member (51) via the first transmission assembly (53); The first transmission assembly (53) comprises a transmission rod (531), two ends of the transmission rod (531) are respectively connected to a first connecting member (532) and a second connecting member (533), and the first connecting member (532) and the second connecting member (533) are respectively connected to the support member (51) and the second sleeve (412); The mounting mechanism (3) comprises a sleeve (31) and a weight (32), wherein the weight (32) is connected to the sleeve (31). When the electronic detonator (6) is in the installed state, the electronic detonator (6) passes through the sleeve (31) and cooperates with the support mechanism (2); when the weight (32) is in the suspended state, the gravity exerted on the weight (32) is transmitted to the electronic detonator (6) through the sleeve (31); A limit block (311) is provided on the sleeve (31), a slide rail (511) is provided on the support member (51), and the limit block (311) and the slide rail (511) are slidably matched.

2. The pneumatic testing device for the bending resistance of electronic detonators according to claim 1 is characterized in that: The supporting platform (41) can be slidably arranged on the frame (1) along a vertical direction; The lifting assembly (42) is used to drive the supporting platform (41) to move up and down.

3. The pneumatic testing device for the anti-bending performance of electronic detonators according to claim 1 is characterized in that: The weight (32) comprises a first counterweight block (321) and a second counterweight block (322), and the first counterweight block (321) is connected to the second counterweight block (322).

4. The pneumatic testing device for the bending resistance of electronic detonators according to claim 1 is characterized in that: A reset component (55) is provided on the support member (51), and the reset component (55) comprises a third connecting member (551) and an elastic member (552); The third connecting member (551) is connected to the supporting member (51); Two ends of the elastic member (552) are respectively connected to the third connecting member (551) and the sleeve (31).

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