CN211977722U - External anti-impact cushioning protection structure of electronic detonator - Google Patents

Abstract

The utility model discloses an external anti shock cushioning protection architecture of electronic detonator, including anti impact tube, cushioning sleeve pipe, bayonet socket cover and piping bag, the open rigid body in both ends around anti impact tube is, and the open elasticity body in both ends around the cushioning sleeve pipe is. The shock absorption sleeve is arranged in the shock absorption pipe, and the rear end of the shock absorption sleeve is flush with the rear end of the shock absorption sleeve. The bayonet sleeve is positioned at the rear end of the anti-washing pipe, and the center of the bayonet sleeve is provided with a jack. The periphery of the jack is provided with an annular clamping groove, the rear end of the flushing resisting pipe and the rear end of the cushioning sleeve are both positioned in the annular clamping groove, and the flushing resisting pipe and the cushioning sleeve are fixedly connected together through the clamping opening sleeve. The pipe bag is internally provided with a cylindrical cavity, the rear end of the pipe bag is connected with the front end of the anti-washing pipe, and the cavity of the pipe bag is communicated with the inner cavity of the cushioning sleeve. The utility model discloses rational in infrastructure, shock resistance is strong, and the bradyseism is effectual, has improved the reliability of electronic detonator, avoids detonator and anti impact tube to break away from, easy dismounting, low in manufacturing cost can keep the detonating ability of electronic detonator.

Description

External anti-impact cushioning protection structure of electronic detonator

Technical Field

The utility model relates to an explosion equipment technical field, concretely relates to external anti shock cushioning protection structure of electronic detonator.

Background

For blasting projects with smaller hole spacing, such as tunnel blasting projects, the hole spacing is sometimes less than 50cm, and in extreme cases less than 30 cm. Engineering practices show that when the electronic detonator is used in the engineering background, more detonator misfiring phenomena can occur. Investigation finds that due to the design delay time of adjacent blast holes, shock waves generated by the first-initiated explosive, high-speed moving rocks and strong vibration act on the later-initiated electronic detonator, so that the electronic detonator generates the following two typical damage modes. (1) Visible physical damage such as deformation, distortion, etc. is produced to the shell, chip and structure of the detonator. This form of failure is due to the direct, intense impact of the detonator. Because the sensitivity of the auxiliary charge and the main charge of the electronic detonator is higher, when the charge part is impacted strongly, the self-explosion is generally generated, therefore, the deformation part of the blind shot generated by the damage form is mostly positioned at the non-charge part of the detonator, such as the position of the chip; for this failure mode, a rigid impact-resistant measure is required for the chip portion of the detonator. (2) The appearance of the detonator is not subjected to visible physical damage, namely the direct impact force on the detonator body is not large, but the chip is subjected to strong blasting vibration to cause functional failure; for the damage form, a buffering and shock absorption measure needs to be taken for the chip part of the detonator. Therefore, it is necessary to adopt comprehensive technical measures to protect the chip part of the electronic detonator so as to reduce the anti-explosion phenomenon generated by the two damage modes.

The invention discloses an anti-impact electronic detonator, which is published under the publication number CN206352997U and is named as an anti-impact electronic detonator. The utility model discloses a through set up the sleeve pipe between the chip and the enhancement cap, carry out the protection of pertinence to the explosive head to strengthen the anti striking performance of electron detonator in hope, improve the security of electron detonator. The novel sleeve is arranged inside the detonator shell, and only the explosive head is protected pertinently, and protective measures are not taken for the chip, so that the technical problem cannot be solved.

The invention provides a structure for protecting an electronic detonator circuit by using a metal sleeve, which is provided by the Chinese invention patent with the application publication number of CN109341445A and the invention creation name of 'a method and a structure for protecting the electronic detonator circuit by using the metal sleeve', and the scheme adopts the technical scheme that a sealing colloid is added on the outer part of a circuit board, and meanwhile, a metal tube is connected with one of leg wire input ends of an electronic detonator control module, so that the electromagnetic interference protection and the mechanical external force protection are realized on the electronic detonator control module. The metal sleeve used by the technical scheme occupies the internal space of the shell of the electronic detonator, limits the size of the circuit board, and increases the production process and the manufacturing cost of the detonator. In addition, open blasting engineering and large-hole-pitch underground engineering do not have the phenomenon of electronic detonator explosion rejection caused by small pitch of adjacent blast holes, so that the protection of the whole electronic detonator is not necessary.

The invention discloses a protective device of a sleeve type electronic detonator, which is published under the number of CN110440646A, and the invention provides a protective device of a sleeve type electronic detonator and a manufacturing method thereof. The technical scheme can reduce the probability of physical damage to the shell, the chip and the internal structure of the electronic detonator caused by explosion impact, and reduce the condition of functional failure of the chip caused by strong impact and vibration.

However, the patent has a great defect that the head and the tail ends of the electronic detonator are flush with the head and the tail ends of the metal sleeve, so that the fully-enclosed metal sleeve which integrally sleeves the electronic detonator can protect the shell, the chip and the internal structure of the electronic detonator, and also can seriously limit the explosive effect of the detonator charge, thereby greatly reducing the detonating capacity of the detonator. When the thickness and the strength of the metal sleeve are large enough, the electronic detonator can be well protected, but the effective initiation capability of the detonator is greatly reduced. When the thickness and the strength of the metal sleeve are reduced to improve the detonating capacity of the detonator, the electronic detonator cannot be effectively protected. In addition, the utility model discloses a combination mode and the combination effect requirement to rubber and body are higher, when the detonator is packed into, extrude outside the body the rubber layer among the metal casing very easily to make the buffer protection inefficacy of rubber.

The publication number is CN210036466U, the invention creates the Chinese utility model patent named as "a structure that adopts the metal tube to protect the electronic detonator" and discloses a structure that protects the electronic detonator, its technical scheme includes electronic detonator shell, metal tube, electronic detonator sealing plug, electronic control module and glue, the outside of electronic detonator shell is fixed and is provided with a metal tube. The inner diameter of the metal tube is tightly matched with the outer diameter of the electronic detonator shell, and glue is coated between the outer wall of the electronic detonator shell and the inner wall of the metal tube for bonding in the assembling process. The length of the metal tube extends from the position of the electronic detonator sealing plug to the front end face of the detonator electronic control module, so that the metal tube is ensured to completely sleeve the detonator electronic control module.

Although the semi-wrapped metal tube only sleeved on the electronic control module solves the problem that the full-wrapped metal sleeve reduces the detonation capability of the detonator, the metal tube and the electronic detonator are fixedly bonded together, a buffer layer is not arranged between the metal tube and the electronic detonator, and a chip of the detonator is easily damaged due to strong vibration, so that the defect of functional failure is caused. Therefore, further improvements are needed in the art.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned prior art, the utility model aims to provide an external shock-resistant bradyseism protection architecture that shocks resistance of electron detonator, solve the problem in following two aspects: (1) the fully-enclosed metal sleeve and the buffer layer are not firmly fixed, the electronic detonator is easily separated from the protection of the metal sleeve in the installation process, and the fully-enclosed metal sleeve reduces the detonation capability of the electronic detonator to cause the problem of explosion rejection. (2) The semi-packaged metal tube and the electronic detonator are fixedly bonded together, a buffer layer is not arranged between the semi-packaged metal tube and the electronic detonator, and the chip of the detonator has the problem of functional failure caused by strong vibration.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an external shock-resistant bradyseism protection architecture that dashes of electron detonator, includes anti-impact tube, bradyseism sleeve pipe, bayonet socket cover and tube bag, and anti-impact tube is one section stereoplasm rigidity body, and both ends are open structure around it.

The bradyseism sleeve pipe is one section elasticity body, and both ends are open structure around it too.

The cushioning sleeve is arranged inside the anti-impact pipe, and the rear end of the anti-impact pipe is flush with the rear end of the cushioning sleeve.

The bayonet sleeve is positioned at the rear end of the anti-washing pipe, and the center of the bayonet sleeve is provided with a jack.

The periphery of the jack is provided with an annular clamping groove, the rear end of the flushing resisting pipe and the rear end of the cushioning sleeve are both positioned in the annular clamping groove, and the flushing resisting pipe and the cushioning sleeve are fixedly connected together through the clamping opening sleeve.

The pipe bag is internally provided with a cylindrical cavity, the rear end of the pipe bag is connected with the front end of the anti-washing pipe, and the cavity of the pipe bag is communicated with the inner cavity of the cushioning sleeve.

Furthermore, the anti-impact pipe is a circular pipe with an equal cross section, the cushioning sleeve pipe is also a circular pipe with an equal cross section, and the cushioning sleeve pipe and the anti-impact pipe are coaxially arranged.

Furthermore, the bayonet socket cover includes interior body, outer body and annular roof, and interior body and outer body are circular constant cross-section straight tube, and interior body is located outer internal portion.

The outer edge of the annular top plate and the rear end of the outer pipe body are of an integral structure, the inner edge of the annular top plate and the rear end of the inner pipe body are of an integral structure, and the annular clamping groove is formed between the inner pipe body and the outer pipe body.

Further, the length of the inner pipe body is larger than that of the outer pipe body, and the axis of the inner pipe body is coincident with that of the outer pipe body.

The inner diameter of the annular top plate is equal to that of the inner pipe body, the outer diameter of the inner pipe body is larger than that of the shock absorption sleeve pipe, and the outer pipe body and the shock absorption pipe are in interference fit.

Furthermore, the rear end of the pipe bag is connected with the front end of the anti-washing pipe into a whole through a connecting body.

The pipe bag comprises a bag bottom and a plurality of bag lines, a central hole corresponding to an energy gathering hole of the detonator is formed in the bag bottom, and all the bag lines are uniformly arranged between the bag bottom and the connector in an annular mode.

The extending direction of each pocket line is parallel to the axial direction of the central hole, the front end of each pocket line is connected with the outer edge of the pocket bottom into a whole, and the rear end of each pocket line is connected with the connecting body into a whole.

Further, the connector is of a circular truncated cone structure, a through hole is formed in the connector, and the diameter of the through hole is equal to the inner diameter of the pipe bag.

The large-diameter end of the connecting body and the front end of the anti-washing pipe are of an integral structure, and the small-diameter end of the connecting body and the rear end of each pocket line are of an integral structure.

The diameter of the through hole is smaller than the inner diameter of the anti-impact pipe, a hole shoulder is formed at the joint of the connecting body and the anti-impact pipe, and the end part of the cushioning sleeve is attached to the hole shoulder.

Furthermore, the front end of the flushing-resistant pipe is turned inwards to form an annular inward flanging, the rear end of the pipe bag is of a flaring structure, and the flaring end of the pipe bag is located inside the flushing-resistant pipe and is clamped with the annular inward flanging of the flushing-resistant pipe.

Furthermore, the pipe bag comprises an end ring, a bag bottom and a plurality of bag lines, wherein the end ring and the bag bottom are arranged in a positive opposite mode, a central hole corresponding to an energy gathering hole of the detonator is formed in the bag bottom, and all the bag lines are uniformly arranged between the end ring and the bag bottom in an annular mode.

The extending direction of each pocket line is parallel to the axial direction of the central hole, the rear end of each pocket line is connected with the inner edge of the end ring into a whole, and the front end of each pocket line is connected with the outer edge of the pocket bottom into a whole.

Furthermore, the end ring is located between the shock absorption sleeve and the annular inward flanging of the anti-flushing pipe, and the inner diameter of the annular inward flanging is smaller than the outer diameter of the end ring.

The axis of the end ring is coincident with the axis of the central hole, and the inner diameter of the end ring is larger than or equal to the inner diameter of the pipe pocket.

Further, the shock tube is made of metal and the shock tube is made of an elastomeric material.

By adopting the technical scheme, the utility model discloses a beneficial technological effect is: the utility model has the advantages of reasonable design, local parcel electron detonator of anti-impact tube is showing the shock resistance who improves the chip of electron detonator, and the bradyseism sleeve pipe plays better shock attenuation effect to the chip of electron detonator, and in addition, the pipe pocket carries on spacingly to electron detonator, avoids the chip of detonator and the protection that breaks away from anti-impact tube in installation or the use, easy dismounting, low in manufacturing cost, and the pipe pocket keeps the detonating ability of electron detonator.

Drawings

Fig. 1 is the structural schematic diagram of the first implementation manner of the external shock-resistant and shock-absorbing protection structure of the electronic detonator of the utility model.

Fig. 2 is a schematic structural view of the bayonet sleeve of the present invention.

Fig. 3 is a schematic structural view of the shock-absorbing sleeve of the present invention.

Fig. 4 is a schematic structural view of a combined structure of the impact resistant pipe, the connecting body and the pipe bag in fig. 1.

Fig. 5 is a state diagram of a first implementation manner of an external shock-resistant and shock-absorbing protection structure for an electronic detonator.

Fig. 6 is a schematic structural diagram of a second implementation manner of the external shock-resistant and shock-absorbing protection structure of the electronic detonator of the utility model.

FIG. 7 is a partial schematic view of FIG. 6 showing a tube bag.

3 fig. 3 8 3 is 3 a 3 structural 3 sectional 3 view 3 of 3 the 3 pipe 3 bag 3 a 3- 3 a 3 shown 3 in 3 fig. 3 7 3 in 3 a 3 viewing 3 direction 3. 3

Fig. 9 is a state diagram of a second implementation manner of the external shock-resistant and shock-absorbing protection structure of the electronic detonator of the present invention.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings:

embodiment 1, combine fig. 1 to 5, an external shock-resistant bradyseism protection structure of electronic detonator, including anti-impact tube 1, bradyseism sleeve pipe 2, bayonet sleeve 3 and tube bag 4, anti-impact tube 1 is a section of stereoplasm rigidity body that both ends are open structure around, and anti-impact tube 1 is made by metal, also can be made by rigid plastics. The cushioning sleeve 2 is a section of elastic tube body, the cushioning sleeve 2 is made of elastic material, the elastic material is rubber, and the front end and the rear end of the cushioning sleeve 2 are both of an open structure. The anti-impact pipe 1 is a circular pipe with an equal section, and the cushioning sleeve 2 is also a circular pipe with an equal section. The cushioning sleeve 2 is arranged inside the impact pipe 1, the cushioning sleeve 2 and the impact pipe 1 are coaxially arranged, and the rear end of the impact pipe 1 is flush with the rear end of the cushioning sleeve 2.

The bayonet sleeve 3 is positioned at the rear end of the anti-washing pipe 1, and a jack is arranged at the center of the bayonet sleeve. The periphery of the jack is provided with a ring clamping groove 34, the ring clamping groove 34 is positioned on the outer side of the jack, and the axis of the ring clamping groove 34 is coincident with the axis of the jack. The rear end of the impact-resistant pipe 1 and the rear end of the cushioning sleeve 2 are both positioned in the annular clamping groove 34 of the bayonet sleeve 3, and the impact-resistant pipe 1 and the cushioning sleeve 2 positioned inside the bayonet sleeve 3 are fixedly connected together through the bayonet sleeve 3.

The bayonet sleeve 3 comprises an inner tube 31, an outer tube 32 and an annular top plate 33, and the circular hole of the annular top plate 33 is the above-mentioned jack. The outer tube 32 and the outer tube 32 are both circular straight tubes with uniform cross sections, and the inner tube 31 is located inside the outer tube 32. The outer edge of the annular top plate 33 and the rear end of the outer tube 32 are of an integral structure, the inner edge of the annular top plate and the rear end of the inner tube 31 are of an integral structure, the annular clamping groove 34 is formed between the inner tube 31 and the outer tube 32, and the bayonet sleeve 3 can be manufactured by a stamping process.

The length of the inner tube 31 is greater than that of the outer tube 32, the axis of the inner tube 31 coincides with that of the outer tube 32, and the front end of the inner tube 31 extends to the outside of the outer tube 32. The inner diameter of the annular top plate 33 is equal to the inner diameter of the inner pipe 31, the outer diameter of the inner pipe 31 is larger than the inner diameter of the shock absorption sleeve 2, and the outer pipe 32 is in interference fit with the shock absorption pipe 1.

The pipe bag 4 is positioned outside the front end of the anti-washing pipe 1, and the rear end of the pipe bag 4 is connected with the front end of the anti-washing pipe 1 into a whole through the connecting body 5. The inside cylindrical cavity that has of pipe pocket 4, the cavity of pipe pocket 4 communicates with each other with the inner chamber of bradyseism sleeve pipe 2. When the shock absorption sleeve is used, the electronic detonator 6 can be inserted into the cavity of the pipe bag 4 from the jack on the bayonet sleeve 3 through the inner cavity of the shock absorption sleeve 2 until the energy-gathering hole end part of the electronic detonator is in close contact with the bag bottom 41 of the pipe bag. The electronic detonator 6 comprises a shell, wherein a bayonet plug 61, a chip 62, an auxiliary charge 63 and a main charge 64 are sequentially arranged inside the shell from back to front along the axis direction of the shell, the rear end of the chip 62 is connected with a leg wire 65, and the leg wire 65 penetrates through the bayonet plug 61 to extend to the outside of the electronic detonator 6.

The tube pocket 4 comprises a pocket bottom 41 and a plurality of pocket lines 42, a central hole 43 corresponding to the energy-gathering holes of the electronic detonator 5 is formed in the pocket bottom 41, and all the pocket lines 42 are uniformly arranged between the pocket bottom 41 and the connector 5 in an annular shape. The extending direction of each pocket line 42 is parallel to the axial direction of the central hole 43, the rear end thereof is connected with the connecting body 5, and the front end thereof is connected with the outer edge of the pocket bottom 41. The length of the cavity of the pipe pocket 4 is greater than the length of the main charge 64 along the axial direction of the electronic detonator 6 and less than the sum of the main charge 64 and the auxiliary charge 63 along the axial direction of the electronic detonator 6.

The connector 5 is in a circular truncated cone structure, a through hole 51 is formed in the connector, and the diameter of the through hole 51 is equal to the inner diameter of the pipe bag 4. The large-diameter end of the connecting body 5 and the front end of the anti-washing pipe 1 are of an integral structure, and the small-diameter end of the connecting body and the rear end of each pocket line 42 are of an integral structure. The diameter of the through hole 51 is smaller than the inner diameter of the impact resistant pipe 1, a hole shoulder 52 is formed at the joint of the connecting body 5 and the impact resistant pipe 1, the rear end of the cushioning sleeve 2 is clamped in the annular clamping groove 34 of the clamping sleeve 3, the front end of the cushioning sleeve 2 is clamped at the hole shoulder 52, and the cushioning sleeve 2 cannot slide along the impact resistant pipe 1.

After the electronic detonator 6 is loaded into the pipe bag 4, the main charge 64 is positioned in the cavity of the pipe bag 4, one part of the auxiliary charge 63 is positioned in the cavity of the pipe bag 4, the other part is positioned in the taper hole 51 of the connecting body 5, the chip 62 of the electronic detonator 6 is positioned in the cushioning sleeve 2, and in the using process, the chip 62 of the electronic detonator 6 is completely wrapped by the cushioning sleeve 2.

The anti-impact tube 1, the connector 5 and the tube bag 4 of the external anti-impact and shock-absorption protection structure for the electronic detonator disclosed in the embodiment 1 are manufactured into an integral structure through a machining or injection molding process, and the shock-absorption sleeve 2 is inserted into the anti-impact tube 1 until the end part of the shock-absorption sleeve 2 is in contact with the hole shoulder 52. Then the bayonet sleeve 3 is sleeved at the rear end of the impact-resistant pipe 1, the impact-resistant pipe 1 and the cushioning sleeve 2 are fixed together, and the assembly of the external impact-resistant protection structure of the electronic detonator is completed.

When the electric detonator is used, the rear end of the energy-gathering hole of the electronic detonator 6 is inserted into the inserting hole of the bayonet sleeve 3 until the rear end of the energy-gathering hole of the electronic detonator 6 reaches the pocket bottom 41 of the tube pocket 4, and the tube pocket 4 plays a role in limiting the electronic detonator 6. After the electronic detonator 6 is in place, the chip of the electronic detonator is positioned in the inner cavity of the cushioning sleeve 2, the pin lead extends out of the anti-impact tube 1, the bayonet plug is positioned at the position of the inner tube body 31, the main charge and the auxiliary charge are positioned at the position of the tube pocket 4, the section size of the pocket line 42 is as small as possible under the condition of meeting the limit requirement, so that the detonator can be fully contacted with explosive, and when the auxiliary charge and the main charge are detonated, the tube pocket 4 cannot influence the detonation capability of the electronic detonator.

Embodiment 2, with reference to fig. 2, fig. 3, fig. 6, fig. 7, fig. 8, and fig. 9, an external shock-resistant and shock-absorbing protection structure for an electronic detonator includes an impact-resistant pipe 1, a shock-absorbing sleeve 2, a bayonet sleeve 3, and a pipe bag 4, where the impact-resistant pipe 1 is a section of rigid pipe with open structures at front and rear ends, and the impact-resistant pipe 1 is made of metal or rigid plastic. The cushioning sleeve 2 is a section of elastic tube body, the cushioning sleeve 2 is made of elastic material, the elastic material is rubber, and the front end and the rear end of the cushioning sleeve 2 are both of an open structure. The anti-impact pipe 1 is a circular pipe with an equal section, and the cushioning sleeve 2 is also a circular pipe with an equal section. The cushioning sleeve 2 is arranged inside the impact pipe 1, the cushioning sleeve 2 and the impact pipe 1 are coaxially arranged, and the rear end of the impact pipe 1 is flush with the rear end of the cushioning sleeve 2.

The bayonet sleeve 3 is positioned at the rear end of the anti-washing pipe 1, and a jack is arranged at the center of the bayonet sleeve. The periphery of the jack is provided with a ring clamping groove 34, the ring clamping groove 34 is positioned on the outer side of the jack, and the axis of the ring clamping groove 34 is coincident with the axis of the jack. The rear end of the anti-impact pipe 1 and the rear end of the cushioning sleeve 2 are both positioned in the annular clamping groove 34 of the bayonet sleeve 3, and the anti-impact pipe 1 and the cushioning sleeve 2 positioned inside the bayonet sleeve 3 are fixedly connected together through the bayonet sleeve 3.

The bayonet sleeve 3 comprises an inner tube 31, an outer tube 32 and an annular top plate 33, and the circular hole of the annular top plate 33 is the above-mentioned jack. The outer tube 32 and the outer tube 32 are both circular straight tubes with uniform cross sections, and the inner tube 31 is located inside the outer tube 32. The outer edge of the annular top plate 33 and the rear end of the outer tube 32 are of an integral structure, the inner edge of the annular top plate and the rear end of the inner tube 31 are of an integral structure, the annular clamping groove 34 is formed between the inner tube 31 and the outer tube 32, and the bayonet sleeve 3 can be manufactured by a stamping process.

The length of the inner tube 31 is greater than the length of the outer tube 32, and the axis of the inner tube 31 coincides with the axis of the outer tube 32. The inner diameter of the annular top plate 33 is equal to the inner diameter of the inner pipe 31, the outer diameter of the inner pipe 31 is larger than the inner diameter of the shock absorption sleeve 2, and the outer pipe 32 is in interference fit with the shock absorption pipe 1.

The front end of the anti-impact pipe 1 is turned inwards to form an annular inward flanging 11, the rear end of the pipe bag 4 is turned outwards to form a flaring structure, the flaring end of the pipe bag 4 is located inside the anti-impact pipe 1 and is connected with the annular inward flanging 11 of the anti-impact pipe 1 in a clamping mode, and under the limiting effect of the annular inward flanging 11, the pipe bag 4 cannot be pulled out from the front end of the anti-impact pipe 1.

The inside cylindrical cavity that has of pipe pocket 4, the cavity of pipe pocket 4 communicates with each other with the inner chamber of bradyseism sleeve pipe 2. When the shock absorption sleeve is used, the electronic detonator 6 can be inserted into the cavity of the pipe bag 4 from the jack on the bayonet sleeve 3 through the inner cavity of the shock absorption sleeve 2 until the energy-gathering hole end part of the electronic detonator is in close contact with the bag bottom 41 of the pipe bag. The electronic detonator 6 comprises a shell, wherein a bayonet plug 61, a chip 62, an auxiliary charge 63 and a main charge 64 are sequentially arranged inside the shell from back to front along the axis direction of the shell, the rear end of the chip 62 is connected with a leg wire 65, and the leg wire 65 penetrates through the bayonet plug 61 to extend to the outside of the electronic detonator 6.

The pipe pocket 4 comprises a ring 44, a pocket bottom 41 and a plurality of pocket lines 42, wherein the ring 44 is arranged opposite to the pocket bottom 41 in the positive direction, the pocket bottom 41 is provided with a central hole 43 corresponding to an energy-gathering hole of a detonator, and all the pocket lines 42 are uniformly arranged between the ring 44 and the pocket bottom 41 in an annular shape. Each of the pocket lines 42 extends in parallel with the axial direction of the center hole 43, and has a rear end integrally connected to the inner edge of the end ring 44 and a front end integrally connected to the outer edge of the pocket bottom 41. The pipe bag 4 is used for limiting the detonator inserted into the cushioning sleeve 2 and preventing the detonator from being separated from the impact-resistant pipe 1 under the action of displacement or external force in the impact-resistant pipe 1, so that a chip of the detonator slides to the outside of the impact-resistant pipe 1. Under the condition of meeting the limiting requirement, the section size of the pocket line 42 is as small as possible, so that the detonator can be fully contacted with the explosive, and when the auxiliary charge and the main charge are detonated, the influence of the tubular pocket 4 on the detonation capability of the electronic detonator is reduced to the maximum extent, and the influence can be ignored.

The end ring 44 is positioned between the shock absorption sleeve 2 and the annular inward flanging 11 of the impact pipe 1, and the inner diameter of the annular inward flanging 11 of the impact pipe 1 is smaller than the outer diameter of the end ring 44. The axis of the end ring 44 coincides with the axis of the central hole 43, and the inner diameter of the end ring 44 is greater than or equal to the inner diameter of the pipe pocket 4. After the shock absorption sleeve 2 is installed in the impact resistant pipe 1, the rear end of the shock absorption sleeve 2 is clamped in the annular clamping groove 34 of the clamping sleeve 3, the front end of the shock absorption sleeve 2 is clamped on the surface of the end ring 44, and the shock absorption sleeve 2 cannot slide along the impact resistant pipe 1 under the reaction force of the end ring 44.

The anti-impact tube 1 and the tube pocket 4 of the external anti-impact cushioning protection structure for the electronic detonator disclosed in the embodiment 2 are of split structures and are respectively manufactured through machining or injection molding. First, the pipe pocket 4 is inserted into the anti-wash pipe 1 from the rear end thereof, and is extended out from the front end of the anti-wash pipe 1, and is contacted with the annular inward flange 11 of the anti-wash pipe 1 by the end ring 44 of the pipe pocket 4. Secondly, the bayonet sleeve 3 is sleeved at the rear end of the impact-resistant pipe 1, the impact-resistant pipe 1 and the cushioning sleeve 2 are fixed together, and the assembly of the external impact-resistant protection structure of the electronic detonator is completed.

When the electric detonator is used, the rear end of the energy-gathering hole of the electronic detonator 6 is inserted into the inserting hole of the bayonet sleeve 3 until the rear end of the energy-gathering hole of the electronic detonator 6 reaches the pocket bottom 41 of the tube pocket 4, and the tube pocket 4 plays a role in limiting the electronic detonator 6. After the electronic detonator 6 is in place, the pin lead extends out of the anti-impact tube 1, the bayonet plug is positioned at the position of the inner tube body 31, the chip of the electronic detonator 6 is positioned in the inner cavity of the shock absorption sleeve 2, the shock absorption sleeve 2 plays a role in shock resistance and vibration absorption, and the chip is effectively protected from being damaged. The main explosive and the auxiliary explosive are located at the position of the pipe bag 4, and when the main explosive and the auxiliary explosive are detonated, the pipe bag 4 reduces the influence on the detonation capability of the detonator to the maximum extent, and the influence can be ignored.

The parts not mentioned in the utility model can be realized by adopting or using the prior art for reference.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.

Claims (10)

1. An external impact-resistant cushioning protection structure for an electronic detonator comprises an impact-resistant pipe, a cushioning sleeve pipe, a bayonet sleeve and a pipe bag, and is characterized in that the impact-resistant pipe is a section of hard rigid pipe body, and the front end and the rear end of the impact-resistant pipe are both open structures;

the cushioning sleeve is a section of elastic pipe body, and the front end and the rear end of the cushioning sleeve are both of an open structure;

the shock absorption sleeve is arranged inside the impact resistant pipe, and the rear end of the impact resistant pipe is flush with the rear end of the shock absorption sleeve;

the bayonet sleeve is positioned at the rear end of the anti-washing pipe, and the center of the bayonet sleeve is provided with an insertion hole;

the periphery of the jack is provided with an annular clamping groove, the rear end of the flushing resisting pipe and the rear end of the cushioning sleeve are both positioned in the annular clamping groove, and the flushing resisting pipe and the cushioning sleeve are fixedly connected together through a clamping opening sleeve;

the pipe bag is internally provided with a cylindrical cavity, the rear end of the pipe bag is connected with the front end of the anti-washing pipe, and the cavity of the pipe bag is communicated with the inner cavity of the cushioning sleeve.

2. The external shock-resistant and shock-absorbing protection structure for the electronic detonator according to claim 1, wherein the shock-resistant tube is a circular tube with a uniform cross section, the shock-absorbing sleeve is also a circular tube with a uniform cross section, and the shock-absorbing sleeve and the shock-resistant tube are coaxially arranged.

3. The external shock-resistant and shock-absorbing protection structure for the electronic detonator according to claim 1, wherein the bayonet sleeve comprises an inner tube, an outer tube and an annular top plate, the inner tube and the outer tube are both circular straight tubes with uniform cross sections, and the inner tube is positioned inside the outer tube;

the outer edge of the annular top plate and the rear end of the outer pipe body are of an integral structure, the inner edge of the annular top plate and the rear end of the inner pipe body are of an integral structure, and the annular clamping groove is formed between the inner pipe body and the outer pipe body.

4. The external shock-resistant and shock-absorbing protection structure for the electronic detonator as claimed in claim 3, wherein the length of the inner tube is greater than that of the outer tube, and the axis of the inner tube is coincident with that of the outer tube;

the inner diameter of the annular top plate is equal to that of the inner pipe body, the outer diameter of the inner pipe body is larger than that of the shock absorption sleeve pipe, and the outer pipe body and the shock absorption pipe are in interference fit.

5. The external shock-resistant and shock-absorbing protection structure for the electronic detonator according to claim 1, wherein the rear end of the tube pocket is integrally connected with the front end of the shock-resistant tube through a connector;

the pipe bag comprises a bag bottom and a plurality of bag lines, a central hole corresponding to an energy-gathering hole of the detonator is formed in the bag bottom, and all the bag lines are uniformly arranged between the bag bottom and the connector in an annular shape;

the extending direction of each pocket line is parallel to the axial direction of the central hole, the front end of each pocket line is connected with the outer edge of the pocket bottom into a whole, and the rear end of each pocket line is connected with the connecting body into a whole.

6. The external shock-resistant and shock-absorbing protection structure for the electronic detonator according to claim 5, wherein the connecting body is a truncated cone structure, and a through hole is formed in the connecting body;

the large-diameter end of the connecting body and the front end of the anti-washing pipe are of an integral structure, and the small-diameter end of the connecting body and the rear end of each pocket line are of an integral structure;

the diameter of the through hole is smaller than the inner diameter of the anti-impact pipe, a hole shoulder is formed at the joint of the connecting body and the anti-impact pipe, and the end part of the cushioning sleeve is attached to the hole shoulder.

7. The external impact-resistant shock-absorbing protection structure for the electronic detonator according to claim 1, wherein the front end of the impact-resistant pipe is turned inwards to form an annular inward turned edge, the rear end of the pipe bag is of a flaring structure, and the flaring end of the pipe bag is located inside the impact-resistant pipe and is clamped with the annular inward turned edge of the impact-resistant pipe.

8. The external shock-resistant and shock-absorbing protection structure for the electronic detonator according to claim 7, wherein the tube bag comprises an end ring, a bag bottom and a plurality of bag lines, the end ring and the bag bottom are arranged in a positive opposite manner, a central hole corresponding to an energy-gathering hole of the detonator is formed in the bag bottom, and all the bag lines are uniformly arranged between the end ring and the bag bottom in an annular manner;

the extending direction of each pocket line is parallel to the axial direction of the central hole, the rear end of each pocket line is connected with the inner edge of the end ring into a whole, and the front end of each pocket line is connected with the outer edge of the pocket bottom into a whole.

9. The external shock-resistant shock-absorbing protection structure for the electronic detonator according to claim 8, wherein the end ring is positioned between the shock-absorbing sleeve and an annular inward flange of the shock-absorbing sleeve, and the inner diameter of the annular inward flange is smaller than the outer diameter of the end ring;

the axis of the end ring is coincident with the axis of the central hole, and the inner diameter of the end ring is larger than or equal to the inner diameter of the pipe pocket.

10. The external shock-resistant and shock-absorbing protection structure for the electronic detonator as claimed in claim 1 or 2, wherein the shock-resistant tube is made of metal or hard plastic, and the shock-absorbing sleeve is made of rubber material.

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