Blasting tube fixing auxiliary device for engineering blasting

Abstract

The blast pipe fixing auxiliary device for engineering blasting comprises a mounting pressing pipe, one end of the mounting pressing pipe is in inserted connection with an anti-disengaging pipe, and a first limiting assembly is arranged on the outer side of the end, away from the mounting pressing pipe, of the anti-disengaging pipe and used for movement limiting after the blast pipe is inserted; a second limiting assembly is arranged on the outer side of the end, away from the mounting pressing pipe, of the anti-disengaging pipe and used for movement limiting of the anti-disengaging pipe after the device is inserted into the blast hole. According to the blasting pipe fixing auxiliary device for engineering blasting, through the structural matching design of the mounting pressing pipe, the anti-falling pipe, the first limiting assembly and the second limiting assembly, the device can guide throwing of a blasting pipe, meanwhile, limiting of the blasting pipe after throwing is achieved, the phenomenon that the blasting pipe slides out of a blast hole is avoided, and the blasting pipe fixing auxiliary device is suitable for engineering blasting. And by inserting the inner extrusion sleeve, limiting of the first limiting assembly is achieved, so that the blasting pipe can be taken out after being put, and the device is compact in overall structure, small in size and convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of blasting assistance, in particular to a blasting tube fixing auxiliary device for engineering blasting. Background Art

[0002] At present, most tunnels in my country are constructed by tunnel boring machines. However, the rock strength is high, so the construction efficiency of tunnel boring machines is low, the equipment cost is high, and they are particularly affected by the construction environment and have poor adaptability. However, drilling and blasting has high construction efficiency, low construction cost, and good adaptability to geological conditions.

[0003] The existing drilling and blasting technology usually involves opening a number of blastholes on the tunnel face on one side of the tunnel body, inserting a blasting tube into each blasthole, and igniting each blasting tube at the same time to complete the tunnel blasting, and using electric detonators to remotely detonate the blasting tubes to detonate the blastholes.

[0004] However, some construction environments are irregular. For example, the prefabricated blastholes in a slope environment are tilted downward, that is, the blastholes are displayed in front of the blasting personnel in a tilted downward manner. This causes the blasting tube to slide outward along the blasting hole after being dropped into the blasting hole, resulting in inaccurate positioning of the blasting tube, affecting the normal progress of the blasting work. For this reason, the present application proposes a blasting tube fixing auxiliary device for engineering blasting, which provides a new technical solution to solve the above-mentioned technical problems. Summary of the invention

[0005] Based on this, it is necessary to provide a blasting tube fixing auxiliary device for engineering blasting to address the above technical problems. By installing a pressure tube, an anti-drop tube, a first limit assembly, and a second limit assembly, the device can guide the placement of the blasting tube, and at the same time achieve the limitation of the blasting tube after the placement to prevent the blasting tube from slipping out of the blasting hole. By inserting an inner extrusion sleeve, the first limit assembly can be limited, so that the blasting tube can be taken out after it is placed. The overall structure of the device is compact, the volume is small, and it is easy to use.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The invention discloses a blasting tube fixing auxiliary device for engineering blasting, which is applied to auxiliary fixing of blasting tubes.

[0008] The auxiliary device for fixing the blasting tube for engineering blasting specifically comprises:

[0009] A pressure tube is installed, one end of which is plugged and connected with an anti-dropping tube, a first limiting assembly is arranged on the outer side of the anti-dropping tube away from the end of the pressure tube, which is used for limiting the movement of the blasting tube after the blasting tube is inserted, and a second limiting assembly is arranged on the outer side of the anti-dropping tube away from the end of the pressure tube, which is used for limiting the movement of the anti-dropping tube after the device is inserted into the blast hole;

[0010] An inner extrusion sleeve is arranged at one end of the installation pressure tube away from the anti-dropping tube, the inner extrusion sleeve is inserted into the installation pressure tube, the end of the inner extrusion sleeve away from the installation pressure tube is fixedly connected to a limiting retaining ring for limiting the insertion of the inner extrusion sleeve, the end of the inner extrusion sleeve located inside the installation pressure tube is also located inside the anti-dropping tube, a cavity 1 is arranged between the inner extrusion sleeve and the installation pressure tube, the anti-dropping tube and the first limiting assembly are both located inside the cavity 1;

[0011] A connecting sleeve is arranged on the outside of one end of the anti-dropping tube away from the installing pressure tube, the connecting sleeve is fixedly connected to the anti-dropping tube, the second limiting component is sleeved on the outside of the connecting sleeve, a second cavity is arranged between the inner side of the connecting sleeve and the anti-dropping tube, the end of the installing pressure tube close to the anti-dropping tube is located on the inner side of the second cavity, an external thread is provided on the outside of one end of the installing pressure tube located on the inner side of the second cavity, and the external thread is threadedly connected to the inner side of the connecting sleeve.

[0012] As a preferred embodiment of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention, the first limiting assembly includes an arc-shaped spring sheet, and the end of the arc-shaped spring sheet close to the installation pressure tube is fixedly connected to the inner wall of the anti-detachment tube, and the end of the arc-shaped spring sheet away from the installation pressure tube is respectively provided with a sliding support foot and a limiting stop frame, and the ends of the sliding support foot are fixedly connected with connecting sliders on both sides, and a guide groove is provided at a position of the anti-detachment tube away from the installation pressure tube and corresponding to the sliding support foot, and the end of the sliding support foot away from the arc-shaped spring sheet is located on the inner side of the guide groove, and the end of the sliding support foot is slidably connected to the guide groove through a connecting slider; the limiting stop frame is opposite to the bending direction of the sliding support foot, and the arc-shaped spring sheet, the sliding support foot, and the limiting stop frame are integrally stamped.

[0013] As a preferred embodiment of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention, a movable through groove is opened in the middle of the arc-shaped spring leaf, and a roller is rotatably connected inside the movable through groove. The arc-shaped spring leaf is fitted with the outer side of the inner extrusion sleeve through the roller, and the static friction between the arc-shaped spring leaf and the inner extrusion sleeve is converted into dynamic friction through the roller.

[0014] As a preferred embodiment of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention, the second limiting assembly includes a fixing ring, the fixing ring is sleeved on the outside of the connecting sleeve, the fixing ring is fixedly connected to the connecting sleeve, and a plurality of arc-shaped spring pieces are arranged on the outside of the fixing ring, and the end of the arc-shaped spring piece away from the fixing ring is bent in the axial direction away from the fixing ring. The number of the arc-shaped spring pieces is multiple, and the plurality of arc-shaped spring pieces are arranged in a ring array, and the end of the arc-shaped spring piece away from the fixing ring is sleeved with an anti-slip sleeve, and the fixing ring and the arc-shaped spring piece are integrally stamped.

[0015] As a preferred embodiment of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention, a metal wire is arranged on the outside of the fixing ring, the number of the metal wires is several, one end of the metal wire is plug-connected with the fixing ring, the other end of the metal wire is fixedly connected with a rubber ball, and fixing glue is applied on the outside of the fixing ring and at the connection with the metal wire.

[0016] As a preferred embodiment of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention, an outer side of the mounting pressure tube is sleeved with an outer extrusion sleeve, the anti-detachment tube and the second limiting assembly are both located on the inner side of the outer extrusion sleeve, and when the outer extrusion sleeve is removed, the arc-shaped spring piece and the metal wire are expanded away from the end connected to the fixing ring toward the direction away from the axis of the fixing ring.

[0017] As a preferred embodiment of the auxiliary device for fixing a blasting tube for engineering blasting provided by the present invention, a plurality of hollow grooves three are provided on the installation pressure tube, and a plurality of hollow grooves two are provided on the anti-detachment tube.

[0018] As a preferred embodiment of the auxiliary device for fixing a blasting tube for engineering blasting provided by the present invention, a plurality of hollow grooves are provided on the fixing ring.

[0019] As a preferred embodiment of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention, a pick-up and placement handle is fixedly connected to the outer side of one end of the installation pressure tube away from the anti-drop tube.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] The blasting tube fixing auxiliary device for engineering blasting provided by the present invention can guide the delivery of the blasting tube and realize the limitation of the blasting tube after delivery through the structural coordination design of installing the pressing tube, the anti-dropping tube, the first limiting assembly and the second limiting assembly, so as to avoid the blasting tube from slipping out of the blasting hole. The first limiting assembly can be limited by inserting the inner extrusion sleeve, so that the blasting tube can be taken out after delivery. The overall structure of the device is compact, the volume is small, and it is easy to use.

[0022] The blasting tube fixing auxiliary device for engineering blasting provided by the present invention has a detachable design of the installation pressure tube and the anti-dropout tube, so that after the installation pressure tube carrying the anti-dropout tube is inserted into the blasthole, the installation pressure tube can be disassembled from the anti-dropout tube, so that the installation pressure tube can be pulled out of the blasthole, and then another anti-dropout tube can be installed on the end of the installation pressure tube for use, so that the installation pressure tube can be repeatedly used, thereby reducing the blasting cost.

[0023] The blasting tube fixing auxiliary device for engineering blasting provided by the present invention has a structural design of an external extrusion sleeve, so that after the installation pressure tube carrying the anti-detachment tube is inserted into the blast hole, the second limiting component can be blocked by the external extrusion sleeve, so that the second limiting component will not be deployed, thereby not limiting the anti-detachment tube, and then before the external extrusion sleeve is removed, the entire device can be pulled out of the blast hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the scheme of the present invention, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A schematic diagram of the overall structure of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention;

[0026] Figure 2 A front view of the overall structure of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention;

[0027] Figure 3 A schematic diagram of the structure of the auxiliary device for fixing a blasting tube for engineering blasting provided by the present invention, in which a pressing tube, an anti-dropping tube, a first limiting assembly, a second limiting assembly, and an inner extrusion sleeve are installed;

[0028] Figure 4 A schematic diagram of the connection structure of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention for installing the pressing tube and the anti-dropping tube;

[0029] Figure 5 A schematic structural diagram of an anti-dropping tube and a first limiting assembly of a blasting tube fixing auxiliary device for engineering blasting provided by the present invention;

[0030] Figure 6 A cross-sectional view of the connection structure of the anti-dropping tube and the first limiting assembly of the blasting tube fixing auxiliary device for engineering blasting provided by the present invention;

[0031] Figure 7 A schematic structural diagram of a first position-limiting assembly of a blasting tube fixing auxiliary device for engineering blasting provided by the present invention;

[0032] Figure 8 A schematic diagram of the structure of the second limiter assembly of the auxiliary device for fixing a blasting tube for engineering blasting provided by the present invention;

[0033] Fig. 9 This is a schematic structural diagram of an extrusion sleeve in a blasting tube fixing auxiliary device for engineering blasting provided by the present invention.

[0034] The markings in the figure are as follows:

[0035] 1. Install the compression tube; 2. Anti-drop tube; 3. First limit assembly; 4. Second limit assembly; 5. Inner extrusion sleeve; 6. Connecting sleeve; 7. Guide slide groove; 8. Arc spring leaf; 9. Sliding foot; 10. Limit stop frame; 11. Connecting slider; 12. Roller; 13. Fixed ring; 14. Arc spring leaf; 15. Anti-slip sleeve; 16. Metal wire; 17. Rubber ball; 18. Fixing glue; 19. Hollow groove one; 20. Hollow groove two; 21. Take and place handle; 22. Hollow groove three; 23. External thread; 24. External extrusion sleeve; 25. Movable through groove; 26. Limit stop ring; 27. Cavity one; 28. Cavity two. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0037] As described in the background technology, some construction environments are irregular. For example, the prefabricated blastholes in a slope environment are tilted downward, that is, the blastholes are displayed in front of the blasting personnel in a tilted downward manner. This causes the blasting tube to slide outward along the blasting hole after being dropped into the blasthole, resulting in inaccurate positioning of the blasting tube, affecting the normal progress of the blasting work.

[0038] In order to solve this technical problem, the present invention provides a blasting tube fixing auxiliary device for engineering blasting, which is used for auxiliary fixing of blasting tubes.

[0039] Specifically, please refer to Figure 1 - Figure 8 , the auxiliary device for fixing the blasting tube for engineering blasting specifically includes:

[0040] A pressure tube 1 is installed, one end of which is plugged and connected with an anti-dropping tube 2, a first limiting assembly 3 is arranged on the outer side of the anti-dropping tube 2 away from the end of the pressure tube 1, which is used for limiting the movement of the blasting tube after the blasting tube is inserted, and a second limiting assembly 4 is arranged on the outer side of the anti-dropping tube 2 away from the end of the pressure tube 1, which is used for limiting the movement of the anti-dropping tube 2 after the device is inserted into the blast hole;

[0041] The inner extrusion sleeve 5 is arranged at one end of the installation pressure tube 1 away from the anti-dropping tube 2, and the inner extrusion sleeve 5 is inserted into the installation pressure tube 1. The end of the inner extrusion sleeve 5 away from the installation pressure tube 1 is fixedly connected to the limit retaining ring 26 for inserting and limiting the inner extrusion sleeve 5. The end of the inner extrusion sleeve 5 located inside the installation pressure tube 1 is also located inside the anti-dropping tube 2. A cavity 27 is provided between the inner extrusion sleeve 5 and the installation pressure tube 1, and the anti-dropping tube 2 and the first limit assembly 3 are both located inside the cavity 27;

[0042] A connecting sleeve 6 is arranged on the outside of one end of the anti-detachment tube 2 away from the installing pressure tube 1, the connecting sleeve 6 is fixedly connected to the anti-detachment tube 2, the second limiting component 4 is sleeved on the outside of the connecting sleeve 6, a second cavity 28 is arranged between the inner side of the connecting sleeve 6 and the anti-detachment tube 2, the end of the installing pressure tube 1 close to the anti-detachment tube 2 is located on the inside of the second cavity 28, an external thread 23 is provided on the outside of one end of the installing pressure tube 1 located on the inside of the second cavity 28, and the external thread 23 is threadedly connected to the inner side of the connecting sleeve 6.

[0043] The blasting tube fixing auxiliary device for engineering blasting provided by the present invention is designed by installing a pressure tube 1, an anti-drop tube 2, a first limit assembly 3, and a second limit assembly 4, so that the device can guide the placement of the blasting tube and simultaneously limit the blasting tube after it is placed, thereby preventing the blasting tube from slipping out of the blasthole. The first limit assembly 3 is limited by inserting an inner extrusion sleeve 5, so that the blasting tube can be taken out after it is placed. The overall structure of the device is compact, the volume is small, and it is easy to use.

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0045] Embodiment 1:

[0046] Please refer to Figure 1 - Figure 8 , a blasting tube fixing auxiliary device for engineering blasting, comprising:

[0047] A pressure tube 1 is installed, and one end of the pressure tube 1 is plugged and connected with an anti-dropout tube 2. A first limiting component 3 is arranged on the outer side of the anti-dropout tube 2 away from the end of the pressure tube 1, which is used for limiting the movement after the blasting tube is inserted. A second limiting component 4 is arranged on the outer side of the anti-dropout tube 2 away from the end of the pressure tube 1, which is used for limiting the movement of the anti-dropout tube 2 after the device is inserted into the blasthole; wherein, in order to facilitate the removal of the pressure tube 1, a pick-up and placement handle 21 is fixedly connected to the outer side of the end of the pressure tube 1 away from the anti-dropout tube 2.

[0048] The inner extrusion sleeve 5 is arranged at one end of the installation pressure tube 1 away from the anti-dropping tube 2, and the inner extrusion sleeve 5 is inserted into the installation pressure tube 1. The end of the inner extrusion sleeve 5 away from the installation pressure tube 1 is fixedly connected to the limit retaining ring 26 for inserting and limiting the inner extrusion sleeve 5. The end of the inner extrusion sleeve 5 located inside the installation pressure tube 1 is also located inside the anti-dropping tube 2. A cavity 27 is provided between the inner extrusion sleeve 5 and the installation pressure tube 1, and the anti-dropping tube 2 and the first limit assembly 3 are both located inside the cavity 27;

[0049] A connecting sleeve 6 is arranged on the outside of one end of the anti-detachment tube 2 away from the installing pressure tube 1, the connecting sleeve 6 is fixedly connected to the anti-detachment tube 2, the second limiting component 4 is sleeved on the outside of the connecting sleeve 6, a second cavity 28 is arranged between the inner side of the connecting sleeve 6 and the anti-detachment tube 2, the end of the installing pressure tube 1 close to the anti-detachment tube 2 is located on the inside of the second cavity 28, an external thread 23 is provided on the outside of one end of the installing pressure tube 1 located on the inside of the second cavity 28, and the external thread 23 is threadedly connected to the inner side of the connecting sleeve 6.

[0050] The first limiting component 3 on the inner side of the anti-dropping tube 2 can be used to limit the insertion of the blasting tube, thereby preventing the blasting tube from slipping out of the blasting tube from slipping out of the blasting tube.

[0051] After the installation pressure tube 1 carrying the anti-detachment tube 2 is inserted into the blasthole, the installation pressure tube 1 can be separated from the connecting sleeve 6 by rotating the installation pressure tube 1, thereby realizing the separation of the installation pressure tube 1 and the anti-detachment tube 2, and then the installation pressure tube 1 can be taken away and reused by installing another anti-detachment tube 2, thereby realizing the reuse of the installation pressure tube 1; through the contact between the second limiting component 4 and the blasthole, the friction between the second limiting component 4 and the inner wall of the blasthole is increased, or the cracks or protrusions in the blasthole block the second limiting component 4, and then after the installation pressure tube 1 and the anti-detachment tube 2 are separated, the installation pressure tube 1 can be pulled out of the blasthole, and the anti-detachment tube 2 remains in the blasthole to limit the blasting tube in the blasthole to prevent the blasting tube from slipping out of the blasthole.

[0052] Embodiment 2:

[0053] The auxiliary device for fixing the blasting tube for engineering blasting provided in Example 1 is further optimized. Specifically, Figure 5-Figure 7 As shown, the first limiting component 3 includes an arc-shaped spring leaf 8, and one end of the arc-shaped spring leaf 8 close to the mounting pressure tube 1 is fixedly connected to the inner wall of the anti-detachment tube 2, and the other end of the arc-shaped spring leaf 8 away from the mounting pressure tube 1 is respectively provided with a sliding foot 9 and a limiting stop frame 10, and both sides of the end of the sliding foot 9 are fixedly connected with a connecting slider 11, and a guide groove 7 is provided at a position of the anti-detachment tube 2 away from the mounting pressure tube 1 and corresponding to the sliding foot 9, and the end of the sliding foot 9 away from the arc-shaped spring leaf 8 is located on the inner side of the guide groove 7, and the end of the sliding foot 9 is slidably connected to the guide groove 7 through the connecting slider 11; the limiting stop frame 10 is opposite to the bending direction of the sliding foot 9, and the arc-shaped spring leaf 8, the sliding foot 9, and the limiting stop frame 10 are stamped and formed as a whole.

[0054] It can be seen that when the blasting tube is inserted into the anti-dropping tube 2, the first limiting component 3 is squeezed to make the guide slide groove 7 slide in the hollow groove 19, so that the first limiting component 3 and the limiting stop frame 10 in the first limiting component 3 are bent and fitted to the inner wall of the anti-dropping tube 2. After the blasting tube is placed in the blasting hole, the first limiting component 3 is restored. Figure 5 As shown, the blasting tube is blocked by the restored limit stop frame 10, thereby preventing the blasting tube from slipping out of the blasting hole; before the blasting tube is inserted, the inner extrusion sleeve 5 can be inserted to squeeze the first limit assembly 3 through the inner extrusion sleeve 5, so that the first limit assembly 3 is in a compressed state, so that the blasting tube can be dropped into the blasting hole from the inside of the inner extrusion sleeve 5, and the blasting tube can be pulled out and dropped before the inner extrusion sleeve 5 is removed.

[0055] Furthermore, a movable through groove 25 is opened in the middle of the arc-shaped spring leaf 8, and a roller 12 is rotatably connected inside the movable through groove 25. The arc-shaped spring leaf 8 is fitted with the outer side of the inner extrusion sleeve 5 through the roller 12. The static friction between the arc-shaped spring leaf 8 and the inner extrusion sleeve 5 is converted into dynamic friction through the roller 12, so that the insertion of the blasting tube or the inner extrusion sleeve 5 is more convenient and labor-saving.

[0056] Embodiment 3:

[0057] The auxiliary device for fixing the blasting tube for engineering blasting provided in Example 1 is further optimized. Specifically, Figure 8-Figure 9 As shown, the second limiting component 4 includes a fixing ring 13, which is sleeved on the outside of the connecting sleeve 6. The fixing ring 13 is fixedly connected to the connecting sleeve 6. A plurality of arc-shaped spring pieces 14 are arranged on the outside of the fixing ring 13. The end of the arc-shaped spring piece 14 away from the fixing ring 13 is bent in the axial direction away from the fixing ring 13. There are multiple arc-shaped spring pieces 14, and the multiple arc-shaped spring pieces 14 are arranged in a ring array. An anti-slip sleeve 15 is sleeved on the end of the arc-shaped spring piece 14 away from the fixing ring 13. The fixing ring 13 and the arc-shaped spring piece 14 are stamped and formed as a whole.

[0058] It can be seen that after the pressure tube 1 is installed and the anti-drop tube 2 is inserted into the blast hole, it is expanded outward through the arc-shaped spring piece 14, so that the end of the arc-shaped spring piece 14 contacts the inner wall of the blast hole, and the friction force between the arc-shaped spring piece 14 and the inner wall realizes the unidirectional movement limiting effect of the anti-drop tube 2.

[0059] Furthermore, a metal wire 16 is provided on the outside of the fixing ring 13, and the number of the metal wires 16 is several. One end of the metal wire 16 is plug-connected to the fixing ring 13, and the other end of the metal wire 16 is fixedly connected to a rubber ball 17. A fixing glue 18 is applied to the outside of the fixing ring 13 and the connection with the metal wire 16, and the connection between the metal wire 16 and the fixing ring 13 is strengthened by the fixing glue 18.

[0060] It can be seen that after the installation pressure tube 1 carrying the anti-dropout tube 2 is inserted into the blasthole, it is expanded outward through the metal wire 16, and the end of the metal wire 16 is inserted into the crack or protrusion of the inner wall of the blasthole to achieve a unidirectional movement limiting effect on the anti-dropout tube 2.

[0061] Embodiment 4:

[0062] The auxiliary device for fixing the blasting tube for engineering blasting provided in Example 3 is further optimized. Specifically, Fig. 9 As shown, an outer sleeve 24 is installed on the outer side of the compression tube 1, and the anti-dropping tube 2 and the second limiting assembly 4 are both located on the inner side of the outer extrusion sleeve 24. When the outer extrusion sleeve 24 is removed, the arc-shaped spring piece 14 and the metal wire 16 are unfolded away from the end connected to the fixing ring 13 toward the direction away from the axis of the fixing ring 13.

[0063] Through the above-mentioned structural design, the second limiting component 4 can be blocked and limited by the external extrusion sleeve 24, so that the arc-shaped spring piece 14 and the metal wire 16 always remain in a gathered state. After the installation pressure tube 1 carries the anti-dropout tube 2 and is inserted into the blasthole, the anti-dropout tube 2 can be easily pulled out of the blasthole through the installation pressure tube 1. After the external extrusion sleeve 24 is pulled out, the arc-shaped spring piece 14 and the metal wire 16 are expanded outward, so that when the installation pressure tube 1 is pulled out, the arc-shaped spring piece 14 and the metal wire 16 are in contact with the inner wall of the blasthole, thereby blocking the anti-dropout tube 2, and then after the installation pressure tube 1 is pulled out, the anti-dropout tube 2 remains in the blasthole, so that the blasting tube in the blasthole can be limited by the first limiting component 3 inside the anti-dropout tube 2, so that the blasting tube remains in the blasthole.

[0064] Embodiment 5:

[0065] The auxiliary device for fixing the blasting tube for engineering blasting provided in Examples 1-3 is further optimized. Specifically, Figure 3 , Figure 5 , Figure 8As shown, the installation pressure tube 1 is provided with a plurality of hollow grooves three 22 , the anti-dropping tube 2 is provided with a plurality of hollow grooves two 20 ; and the fixing ring 13 is provided with a plurality of hollow grooves one 19 .

[0066] Through the above-mentioned structural design, by providing hollow groove one 19, hollow groove two 20, and hollow groove three 22, the overall weight of the device can be reduced, and the production cost of the device can be reduced at the same time. The hollow groove three 22 makes it convenient to check the inside of the installed pressure tube 1, and the hollow groove two 20 makes it convenient to check the inside of the anti-detachment tube 2.

Claims

1. A blasting tube fixing auxiliary device for engineering blasting, characterized in that: include: A mounting pressure tube (1), one end of the mounting pressure tube (1) is plugged and connected with an anti-dropping tube (2), a first limiting assembly (3) is arranged on the outer side of the anti-dropping tube (2) away from the end of the mounting pressure tube (1), and is used for limiting the movement of the blasting tube after the blasting tube is inserted, and a second limiting assembly (4) is arranged on the outer side of the anti-dropping tube (2) away from the end of the mounting pressure tube (1), and is used for limiting the movement of the anti-dropping tube (2) after the device is inserted into the blasting hole; An inner extrusion sleeve (5) is arranged at one end of the mounting pressure tube (1) away from the anti-dropping tube (2), the inner extrusion sleeve (5) is inserted into the mounting pressure tube (1), the end of the inner extrusion sleeve (5) away from the mounting pressure tube (1) is fixedly connected to a limiting retaining ring (26) for limiting the insertion of the inner extrusion sleeve (5), the end of the inner extrusion sleeve (5) located inside the mounting pressure tube (1) is also located inside the anti-dropping tube (2), a cavity (27) is provided between the inner extrusion sleeve (5) and the mounting pressure tube (1), the anti-dropping tube (2) and the first limiting assembly (3) are both located inside the cavity (27); A connecting sleeve (6) is arranged on the outer side of one end of the anti-slip tube (2) away from the mounting pressure tube (1); the connecting sleeve (6) is fixedly connected to the anti-slip tube (2); the second limiting component (4) is sleeved on the outer side of the connecting sleeve (6); a second cavity (28) is arranged between the inner side of the connecting sleeve (6) and the anti-slip tube (2); the end of the mounting pressure tube (1) close to the anti-slip tube (2) is located on the inner side of the second cavity (28); an external thread (23) is provided on the outer side of one end of the mounting pressure tube (1) located on the inner side of the second cavity (28); the external thread (23) is threadedly connected to the inner side of the connecting sleeve (6).

2. The blasting tube fixing auxiliary device for engineering blasting according to claim 1 is characterized in that: The first limiting component (3) comprises an arc-shaped spring leaf (8), the end of the arc-shaped spring leaf (8) close to the mounting pressure tube (1) is fixedly connected to the inner wall of the anti-slip tube (2), the end of the arc-shaped spring leaf (8) away from the mounting pressure tube (1) is respectively provided with a sliding foot (9) and a limiting stop frame (10), the ends of the sliding foot (9) are fixedly connected with connecting sliders (11) on both sides, the anti-slip tube (2) is provided with a guide groove (7) at a position away from the mounting pressure tube (1) and corresponding to the sliding foot (9), the end of the sliding foot (9) away from the arc-shaped spring leaf (8) is located inside the guide groove (7), and the end of the sliding foot (9) is slidably connected to the guide groove (7) through the connecting slider (11); the bending direction of the limiting stop frame (10) is opposite to that of the sliding foot (9), and the arc-shaped spring leaf (8), the sliding foot (9) and the limiting stop frame (10) are integrally stamped.

3. The blasting tube fixing auxiliary device for engineering blasting according to claim 2, characterized in that: A movable through groove (25) is provided in the middle of the arc-shaped spring leaf (8), and a roller (12) is rotatably connected inside the movable through groove (25). The arc-shaped spring leaf (8) is fitted with the outer side of the inner extrusion sleeve (5) through the roller (12), and the static friction force between the arc-shaped spring leaf (8) and the inner extrusion sleeve (5) is converted into dynamic friction force through the roller (12).

4. The blasting tube fixing auxiliary device for engineering blasting according to claim 1, characterized in that: The second limiting component (4) comprises a fixing ring (13), the fixing ring (13) being sleeved on the outside of the connecting sleeve (6), the fixing ring (13) being fixedly connected to the connecting sleeve (6), a plurality of arc-shaped spring pieces (14) being arranged on the outside of the fixing ring (13), one end of the arc-shaped spring piece (14) away from the fixing ring (13) being bent in an axial direction away from the fixing ring (13), the number of the arc-shaped spring pieces (14) being multiple, the multiple arc-shaped spring pieces (14) being arranged in a ring array, one end of the arc-shaped spring piece (14) away from the fixing ring (13) being sleeved with an anti-slip sleeve (15), and the fixing ring (13) and the arc-shaped spring piece (14) being integrally stamped.

5. The blasting tube fixing auxiliary device for engineering blasting according to claim 4, characterized in that: A metal wire (16) is arranged on the outside of the fixing ring (13), the number of the metal wires (16) is several, one end of the metal wire (16) is plug-connected to the fixing ring (13), the other end of the metal wire (16) is fixedly connected to a rubber ball (17), and a fixing glue (18) is applied on the outside of the fixing ring (13) and at the connection between the metal wire (16).

6. The blasting tube fixing auxiliary device for engineering blasting according to claim 5, characterized in that: The outer side of the installation pressure tube (1) is sleeved with an outer extrusion sleeve (24), the anti-dropping tube (2) and the second limiting assembly (4) are both located on the inner side of the outer extrusion sleeve (24), and when the outer extrusion sleeve (24) is removed, the arc-shaped spring sheet (14) and the metal wire (16) are spread out in a direction away from the axis of the fixing ring (13) away from the end connected to the fixing ring (13).

7. The blasting tube fixing auxiliary device for engineering blasting according to claim 2, characterized in that: The installation pressure tube (1) is provided with a plurality of hollow grooves three (22), and the anti-drop tube (2) is provided with a plurality of hollow grooves two (20).

8. The blasting tube fixing auxiliary device for engineering blasting according to claim 4, characterized in that: The fixing ring (13) is provided with a plurality of hollow grooves (19).

9. The blasting tube fixing auxiliary device for engineering blasting according to claim 1, characterized in that: A pick-up and drop-off handle (21) is fixedly connected to the outer side of one end of the installation and pressing tube (1) away from the anti-dropping tube (2).

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