Charging rod for tunnel drilling and blasting method construction

Abstract

The utility model discloses a charging rod for tunnel drilling and blasting method construction. The charging rod comprises a sleeve with one end open, an ejector rod is arranged at the other end of the sleeve in a sliding and penetrating mode, a first scale strip is arranged on the outer wall of the ejector rod, a second scale strip is arranged on the outer wall of the sleeve, and a C-shaped sliding sleeve is arranged on the outer wall of the sleeve in a sliding and sleeving mode. A baffle is fixedly installed on the outer wall of the sliding sleeve. The non-coupling explosive loading device is simple in structure and easy to produce, when non-coupling explosive loading is carried out on a blast hole, after a needed number of explosive cartridges are stuffed into the sleeve, the explosive cartridges are inserted into the blast hole into the sleeve, the baffle is attached to the outer wall of an opening of the blast hole, then the sleeve is moved relative to the baffle so that the sleeve can be inserted into the blast hole to the needed depth, then the ejector rod is pushed on the sleeve, and the explosive cartridges are loaded into the blast hole. The explosive cartridges can be placed into the blast hole one by one by moving the sleeve to push one explosive cartridge out of the sleeve and then repeating the operation of moving the sleeve out of the blast hole and pushing the ejector rod, it can be ensured that the adjacent explosive cartridges are distributed at the needed interval, operation is easy and convenient, and the using effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling and blasting construction, in particular to a charging rod for tunnel drilling and blasting construction. Background Art

[0002] During tunnel construction using the drill-and-blast method, some blastholes require uncoupled charges. This means that the explosive rolls must be evenly distributed in the blastholes, with a certain distance between them, to achieve the desired smooth blasting effect. Traditional charging rods cannot effectively control the distance between the explosive rolls.

[0003] After searching, the patent with announcement number CN111457805B discloses a charging rod for drilling and blasting construction. When in use, the front-end charging cartridge is installed at the deepest part of the drill hole, and the end-loading cartridge is installed at the mouth of the drill hole. The front-end charging cartridge and the standard charging cartridge, the standard charging cartridge and the standard charging cartridge, and the standard charging cartridge and the end-loading cartridge are all connected by a locking device. Construction personnel can choose the number of standard charging cartridges according to the length of the drill hole and actual needs, which can effectively avoid the occurrence of charging rods that are too long or insufficient in length. Moreover, the charging cartridges are only connected by snapping together and locking the first locking tooth with the second locking tooth. It is simple and convenient to use.

[0004] Although the above solution can realize uncoupled charging of blastholes and can more accurately control the spacing between explosive rolls, its structure is too complicated and the operation is troublesome, and needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a charging rod for tunnel drilling and blasting construction, so as to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A charging rod for tunnel drilling and blasting construction comprises a sleeve with an open end, a push rod slidably provided on the other end of the sleeve, a first scale bar provided on the outer wall of the push rod, a second scale bar provided on the outer wall of the sleeve, a C-shaped sliding sleeve slidably provided on the outer wall of the sleeve, a baffle fixedly mounted on the outer wall of the sliding sleeve, a one-way locking mechanism provided on the sliding sleeve, and a plurality of oblique grooves provided on the outer peripheral wall of the sleeve along its length direction, the oblique grooves being adapted to the one-way locking mechanism.

[0008] As a further solution of the present invention: the one-way locking mechanism includes a locking rod slidably arranged on the sliding sleeve, the bottom end of the locking rod is adapted to the inclined groove, the outer wall of the locking rod is slidably sleeved with a guide sleeve, the guide sleeve is fixedly connected to the baffle, and the outer wall of the locking rod is fixedly connected to a second handle.

[0009] As a further solution of the present invention: a first handle is fixedly connected to the outer wall of the baffle, a spring is arranged between the first handle and the locking rod, positioning pins are passed through both ends of the spring, and the first handle and the locking rod are fixedly connected to the corresponding positioning pins.

[0010] As a further solution of the present invention: the outer peripheral wall of the sleeve is symmetrically provided with two guide grooves, guide blocks are slidably arranged in the guide grooves, and the guide blocks are fixedly connected to the sliding sleeve.

[0011] As a further solution of the present invention: an open groove is provided on the outer peripheral wall of the sleeve.

[0012] As a further solution of the present invention: one end of the push rod located in the sleeve is fixedly connected to a push block, and the other end of the push rod is fixedly connected to a handle.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The utility model has a simple structure and is easy to produce. When uncoupled charging is performed on a blasthole, after a required number of explosive rolls are stuffed into the sleeve, the sleeve is inserted into the blasthole, and the baffle is attached to the outer wall of the blasthole opening. Then, the sleeve is moved relative to the baffle to insert the sleeve into the blasthole to a required depth. Then, a push rod is pushed on the sleeve to push an explosive roll out of the sleeve. Then, the operation of moving the sleeve out of the blasthole and pushing the push rod is repeated, so that the explosive rolls can be placed into the blasthole one by one, and it can be ensured that adjacent explosive rolls are distributed at a required interval. The operation is simple and convenient, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a charging rod used in tunnel drilling and blasting construction.

[0016] Figure 2 for Figure 1 sectional view of .

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0018] Figure 4 This is a schematic diagram of the cross-sectional structure of a sleeve in a charging rod used in tunnel drilling and blasting construction.

[0019] Among them, the sleeve 1, the push rod 2, the handle 3, the first scale bar 4, the push block 5, the explosive roll 6, the detonating cord 7, the opening groove 8, the second scale bar 9, the sliding sleeve 10, the guide groove 11, the guide block 12, the baffle 13, the first grip 14, the guide sleeve 15, the locking rod 16, the inclined groove 17, the second grip 18, the spring 19, and the positioning pin 20. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, a charging rod for tunnel drilling and blasting construction comprises a sleeve 1 with an opening at one end, a push rod 2 is slidably penetrated through the other end of the sleeve 1, a first scale bar 4 is provided on the outer wall of the push rod 2, a second scale bar 9 is provided on the outer wall of the sleeve 1, a C-shaped sliding sleeve 10 is slidably sleeved on the outer wall of the sleeve 1, a baffle 13 is fixedly mounted on the outer wall of the sliding sleeve 10, a one-way locking mechanism is penetrated on the sliding sleeve 10, and a plurality of inclined grooves 17 are opened on the outer peripheral wall of the sleeve 1 along its length direction, and the inclined grooves 17 are adapted to the one-way locking mechanism.

[0022] By adopting the above-mentioned scheme, when the blast hole is uncoupledly charged, after the required number of explosive rolls 6 are stuffed into the sleeve 1, the sleeve 1 is inserted into the blast hole, and the baffle 13 is affixed to the outer wall of the blast hole opening. Then, the sleeve 1 is moved relative to the baffle 13, and the second scale bar 9 is observed to insert the sleeve 1 into the blast hole to the required depth. Then, the push rod 2 is pushed on the sleeve 1 to push one explosive roll 6 out of the sleeve 1. Then, after the sleeve 1 is moved out of the blast hole to the required position, the push rod 2 is operated again to push the second explosive roll 6 out of the sleeve 1. The operation of moving the sleeve 1 out of the blast hole and pushing the push rod 2 is repeated, so that the explosive rolls 6 can be placed into the blast hole one by one, and it can be ensured that adjacent explosive rolls 6 are distributed at the required spacing. The operation is simple and convenient, and the use effect is good.

[0023] Specific combination Figure 1-3 In one embodiment of the present utility model, the one-way locking mechanism includes a locking rod 16 slidably inserted into the sliding sleeve 10, the bottom end of the locking rod 16 is adapted to the inclined groove 17, the outer wall of the locking rod 16 is slidably sleeved with a guide sleeve 15, the guide sleeve 15 is fixedly connected to the baffle 13, and the outer wall of the locking rod 16 is fixedly connected to a second handle 18.

[0024] When the baffle 13 is attached to the opening of the blasthole and the bottom end of the locking rod 16 is inserted into the inclined slot 17, the sleeve 1 can only move outward but cannot move into the blasthole, thereby preventing the sleeve 1 from extending into the blasthole due to misoperation and pushing the explosive roll 6 in the blasthole to complete the displacement.

[0025] Specific combination Figure 3On the basis of the previous embodiment, further, the outer wall of the baffle 13 is fixedly connected to the first handle 14, and a spring 19 is provided between the first handle 14 and the locking rod 16. Both ends of the spring 19 are penetrated by positioning pins 20, and the first handle 14 and the locking rod 16 are fixedly connected with the corresponding positioning pins 20.

[0026] By setting the spring 19 , a thrust toward the sleeve 1 can be always applied to the locking rod 16 , so that the locking rod 16 can actively cooperate with the corresponding inclined slot 17 during the movement of the sleeve 1 relative to the baffle 13 .

[0027] Specific combination Figure 1 and Figure 4 In one embodiment of the present invention, two guide grooves 11 are symmetrically provided on the outer peripheral wall of the sleeve 1 , and guide blocks 12 are slidably provided in the guide grooves 11 , and the guide blocks 12 are fixedly connected to the sliding sleeve 10 .

[0028] The cooperation between the guide groove 11 and the guide block 12 can ensure the stability of the movement of the sliding sleeve 10 on the sleeve 1.

[0029] Specific combination Figure 2 In one embodiment of the present invention, an opening groove 8 is formed on the outer peripheral wall of the sleeve 1 to facilitate passing the detonating cord 7 of the explosive roll 6 out of the sleeve 1.

[0030] Specific combination Figure 2 In one embodiment of the present utility model, one end of the push rod 2 located in the sleeve 1 is fixedly connected to the push block 5, and the other end of the push rod 2 is fixedly connected to the handle 3.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A charging rod for tunnel drilling and blasting construction, characterized by: The invention comprises a sleeve (1) with an opening at one end, a push rod (2) slidably penetrated at the other end of the sleeve (1), a first scale bar (4) is provided on the outer wall of the push rod (2), a second scale bar (9) is provided on the outer wall of the sleeve (1), a C-shaped sliding sleeve (10) is slidably sleeved on the outer wall of the sleeve (1), a baffle (13) is fixedly installed on the outer wall of the sliding sleeve (10), a one-way locking mechanism is penetrated on the sliding sleeve (10), and a plurality of inclined grooves (17) are provided on the outer peripheral wall of the sleeve (1) along its length direction, and the inclined grooves (17) are adapted to the one-way locking mechanism.

2. The charging rod for tunnel drilling and blasting construction according to claim 1, characterized in that: The one-way locking mechanism comprises a locking rod (16) slidably inserted into the sliding sleeve (10), the bottom end of the locking rod (16) is adapted to the inclined groove (17), the outer wall of the locking rod (16) is slidably sleeved with a guide sleeve (15), the guide sleeve (15) is fixedly connected to the baffle (13), and the outer wall of the locking rod (16) is fixedly connected to a second handle (18).

3. The charging rod for tunnel drilling and blasting construction according to claim 2, characterized in that: The outer wall of the baffle (13) is fixedly connected to a first handle (14), a spring (19) is provided between the first handle (14) and the lock rod (16), both ends of the spring (19) are penetrated by positioning pins (20), and the first handle (14) and the lock rod (16) are fixedly connected to the corresponding positioning pins (20).

4. The charging rod for tunnel drilling and blasting construction according to claim 1, characterized in that: Two guide grooves (11) are symmetrically provided on the outer peripheral wall of the sleeve (1), and guide blocks (12) are slidably arranged in the guide grooves (11), and the guide blocks (12) are fixedly connected to the sliding sleeve (10).

5. The charging rod for tunnel drilling and blasting construction according to claim 1, characterized in that: An open groove (8) is provided on the outer peripheral wall of the sleeve (1).

6. The charging rod for tunnel drilling and blasting construction according to claim 1, characterized in that: One end of the push rod (2) located in the sleeve (1) is fixedly connected to a push block (5), and the other end of the push rod (2) is fixedly connected to a handle (3).

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