Blasting material fixing structure for tunnel blasting

Abstract

The utility model relates to the technical field of tunnel blasting, in particular to a blasting material fixing structure for tunnel blasting, which comprises a filling barrel, a placing barrel is arranged in the filling barrel, explosives are placed in the placing barrel, a transmission component is fixedly arranged at the center of the bottom end in the filling barrel, a limiting mechanism is arranged on the rear wall of the filling barrel, and the transmission component is fixedly arranged on the rear wall of the filling barrel. The limiting mechanism comprises a T-shaped box, through grooves are formed in the two sides of the interior of the T-shaped box in parallel, the outer sides of the two ends of a fixing assembly are fixedly arranged in the through grooves, a moving assembly is fixedly arranged on the front wall of the inner wall of the T-shaped box, and the center of the moving assembly is connected with the rear end of a transmission assembly. And conical sawtooth blocks fixedly arranged on the two wall transverse plates can be further conveniently pushed in to move, but cannot be pulled out under the structure of limiting blocks, so that the stability is improved, rapid installation is facilitated for blasting, the position is fixed, the stability is better improved, and the blasting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel blasting, in particular to a blasting material fixing structure for tunnel blasting. Background Art

[0002] Tunnels are the focus and key projects of highway and railway construction. With the development of railway construction and the advancement of science and technology, tunnel excavation methods have been rapidly developed. The more commonly used excavation methods are drilling and blasting, shield method and tunnel boring machine method. Since the drilling and blasting method has strong adaptability to geological conditions and low excavation cost, it is particularly suitable for the construction of hard rock tunnels, broken rock tunnels and a large number of short tunnels. Therefore, the drilling and blasting method is still a commonly used tunnel excavation method at home and abroad. According to the publication number CN220039273U, a blasting tube fixing device for tunnel blasting is disclosed, including a main mechanism and an auxiliary mechanism, the auxiliary mechanism is located at the upper end of the main mechanism, the main mechanism includes a device body, a damper and a support plate, the damper is fixedly installed on the upper end of the device body, the support plate is fixedly installed on the upper end of the damper, the main mechanism also includes an arc clamping plate, a buffer spring and a buffer plate, and the arc clamping plate is movably installed above the device body. The blasting tube fixing device for tunnel blasting realizes that the device body itself has a certain buffering and protective effect during the fixing process of the blasting tube by installing the main body mechanism, which reduces the impact on the device body during the blasting project, thereby reducing the risk of damage to the device body due to large blasting force, thereby extending the service life of the device body and improving the protection of the device body. However, during operation, some positions need to be tilted for blasting, and some narrow areas cannot fix the device. In addition, direct loading of explosives has a certain position movement that has a certain impact on the blasting range. Therefore, it is urgent to design a blasting material fixing structure for tunnel blasting to solve the above problems. Utility Model Content

[0003] The utility model aims to provide a blasting material fixing structure for tunnel blasting, so as to solve the problems raised in the above-mentioned background technology that some positions need to be tilted for blasting during operation, the device cannot be fixed in some narrow areas, and direct loading of explosives has a certain position movement which has a certain influence on the blasting range.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a placement barrel is provided inside the filling barrel, explosives are placed inside the placement barrel, a transmission component is fixedly arranged at the center of the inner bottom end of the filling barrel, a limiting mechanism is provided on the rear wall of the filling barrel, the limiting mechanism includes a T-shaped box, through grooves are provided on both sides of the interior of the T-shaped box in parallel, the two ends of the outer sides of the fixed component are fixed inside the through grooves, a moving component is fixedly arranged on the front wall of the inner wall of the T-shaped box, and the center of the moving component is connected to the rear end of the transmission component.

[0005] Preferably, a U-shaped groove is provided at the top of the filling barrel, and a plurality of groups of limit blocks are fixedly provided on both inner walls of the filling barrel.

[0006] Preferably, the limit block includes a vertical plate, a long side plate is fixed on the left side of the vertical plate, a short side plate is fixed on the right end of the vertical plate, fixed blocks are fixed on the upper and lower sides of the front end of the vertical plate, the upper and lower ends of the fixed shaft are fixed at the center of the fixed block, and an L-shaped oblique block is sleeved on the outer side of the fixed shaft.

[0007] Preferably, an inner circular groove is provided at the top of the placing barrel, a wiring port is provided at the front center of the placing barrel, horizontal plates are fixed on the outer sides of both ends of the placing barrel, conical serrated blocks are fixed at equal distances on the outer sides of the horizontal plates, and a threaded sleeve is fixed on the front side of the bottom end of the placing barrel.

[0008] Preferably, the transmission assembly comprises a threaded rod, two sets of limiting sleeves are inserted into the rear end of the threaded rod, and a rotating shaft is fixed to the rear end of the threaded rod.

[0009] Preferably, the moving component includes a limit plate, a main rotating shaft is fixed to the front end center of the limit plate, the top of the chain group is fixed to the front end of the main rotating shaft, the bottom end of the chain group is connected to the outside of the rotating shaft, the first gear and the second gear are fixed to the front end of the main rotating shaft, the two ends of the main rotating shaft are fixed with auxiliary rotating shafts, the front end of the auxiliary rotating shaft is respectively fixed with a third gear and a fourth gear, the right side of the third gear meshes with the left side of the first gear, and the left side of the fourth gear meshes with the right side of the second gear.

[0010] Preferably, the fixing assembly comprises a U-shaped slide rail, a rack plate is placed inside the U-shaped slide rail, and a clamping plate is fixed to the outer wall of the rack plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The tunnel blasting blasting material fixing structure can be used to install a storage barrel in a U-shaped groove provided in the loading barrel, and the storage barrel can be limited by multiple groups of limit blocks fixed on both sides of the interior to prevent movement, thereby improving stability and the accurate position of the explosion, and the connection port provided on the storage barrel can be used to conveniently connect explosives for easy detonation, and the conical serrated blocks fixed on the two wall horizontal plates can be further conveniently pushed in for movement but cannot be pulled out under the structure of the limit blocks, thereby improving stability and facilitating quick installation for blasting.

[0013] The tunnel blasting blasting material fixing structure can further improve the rotation efficiency by setting a threaded rod for limiting in the transmission component and placing a threaded sleeve sleeved at the bottom end of the barrel, which is convenient for the limiting mechanism to fix. The transmission mechanism provides power for the moving component, so that the moving component can engage the rack plate and extend outward, thereby better fixing the position, better improving stability, and being suitable for blasting in narrow areas to improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the barrel placement of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the filling barrel of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the limit block of the utility model

[0018] Figure 5 It is a rear cross-sectional schematic diagram of the limiting mechanism of the utility model.

[0019] In the figure: 1. Loading barrel; 101. U-shaped groove; 102. Stopper; 1021. Vertical plate; 1022. Long side plate; 1023. Short side plate; 1024. Fixed block; 1025. Fixed shaft; 1026. L-shaped inclined block; 2. Placement barrel; 201. Inner groove; 202. Wiring port; 203. Horizontal plate; 204. Conical sawtooth block; 205. Threaded sleeve; 3. Explosive; 4. Transmission assembly; 401. Threaded rod; 402. Stopper Sleeve; 403, rotating shaft; 5, limiting mechanism; 501, T-shaped box; 502, through slot; 503, moving assembly; 5031, limiting plate; 5032, main rotating shaft; 5033, chain group; 5034, first gear; 5035, second gear; 5036, secondary rotating shaft; 5037, third gear; 5038, fourth gear; 504, fixing assembly; 5041, U-shaped slide rail; 5042, rack plate; 5043, clamping plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-5 , an embodiment provided by the utility model:

[0022] A structure for fixing explosive materials for tunnel blasting, wherein a placing barrel 2 is provided inside a filling barrel 1, explosives 3 are placed inside the placing barrel 2, a transmission component 4 is fixedly arranged at the center of the inner bottom end of the filling barrel 1, a limiting mechanism 5 is provided on the rear wall of the filling barrel 1, the limiting mechanism 5 comprises a T-shaped box 501, through grooves 502 are provided on both sides of the interior of the T-shaped box 501 in parallel, the two ends of the outer sides of a fixing component 504 are fixedly arranged inside the through grooves 502, a moving component 503 is fixedly arranged on the inner front wall of the T-shaped box 501, and the center of the moving component 503 is connected to the rear end of the transmission component 4.

[0023] As a further feature of the utility model, a U-shaped groove 101 is provided at the top of the filling barrel 1, and a plurality of groups of limit blocks 102 are fixedly provided on both inner walls of the filling barrel 1, the limit blocks 102 include a vertical plate 1021, a long side plate 1022 is fixedly provided on the left side of the vertical plate 1021, a short side plate 1023 is fixedly provided on the right end of the vertical plate 1021, fixed blocks 1024 are fixedly provided on the upper and lower sides of the front end of the vertical plate 1021, the upper and lower ends of a fixed shaft 1025 are fixedly provided at the center of the fixed block 1024, and an L-shaped inclined block 1026 is sleeved on the outer side of the fixed shaft 1025 for limiting the movement, improving the stability and the accurate position of the explosion.

[0024] Furthermore, an inner circular groove 201 is provided at the top of the placement barrel 2, a wiring port 202 is provided at the front center of the placement barrel 2, cross plates 203 are fixed to the outer sides of both ends of the placement barrel 2, conical serrated blocks 204 are fixed at equal distances on the outer sides of the cross plates 203, and a threaded sleeve 205 is fixed to the front side of the bottom end of the placement barrel 2, thereby improving stability and facilitating quick installation for blasting.

[0025] Furthermore, the transmission assembly 4 includes a threaded rod 401, two sets of limiting sleeves 402 are inserted at the rear end of the threaded rod 401, and a rotating shaft 403 is fixed at the rear end of the threaded rod 401 to facilitate driving the limiting mechanism to work.

[0026] As a further feature of the present invention, the moving assembly 503 includes a limit plate 5031, a main rotating shaft 5032 is fixedly arranged at the front center of the limit plate 5031, a top end of a chain set 5033 is fixedly arranged at the front end of the main rotating shaft 5032, a bottom end of the chain set 5033 is connected to the outside of the rotating shaft 403, a first gear 5034 and a second gear 5035 are fixedly arranged at the front end of the main rotating shaft 5032, a secondary rotating shaft 5036 is fixedly arranged at both ends of the main rotating shaft 5032, and a front end of the secondary rotating shaft 5036 is fixedly arranged. A third gear 5037 and a fourth gear 5038 are fixedly provided, the right side of the third gear 5037 engages with the left side of the first gear 5034, the left side of the fourth gear 5038 engages with the right side of the second gear 5035, the fixing assembly 504 includes a U-shaped slide rail 5041, a rack plate 5042 is placed inside the U-shaped slide rail 5041, a clamping plate 5043 is fixedly provided on the outer wall of the rack plate 5042, for fixing the position to better improve stability and be suitable for blasting in narrow areas to improve efficiency.

[0027] Working principle: When in use, the user first drills a hole at the location to be blasted, and then loads the explosive 3 into the inner circular groove 201 inside the placement barrel 2, and then connects the explosive 3 through the wiring port 202, and then aligns the conical serrated blocks 204 fixed on the horizontal plates on both sides of the placement barrel 2 horizontally with the inside of the limit blocks 102 on both sides of the U-shaped groove 101, and then docks the threaded sleeve 402 fixed at the bottom end of the placement barrel 2 with the front end of the threaded rod 401 at the bottom end of the filling barrel 1, and then the entire device can be filled into the blasting hole, and then the placement barrel 2 can be pushed to move inward. When the threaded sleeve 402 at the bottom end of the placement barrel 2 moves, it can drive the limited threaded rod 401 to rotate and then drive the rear end rotation shaft 403 to rotate. The rotation of the rotation shaft 403 drives the sleeved chain group 5033 to drive the main rotation shaft 5032 to rotate. The rotation of the main rotation shaft 5032 can drive the first gear 5034 and the second gear 5035 fixed at the front end to rotate. The first gear 5034 meshes with the third gear 5037 on the left side to rotate, and the second gear 5035 meshes with the fourth gear 5038 on the right side to rotate. The rotation of the third gear 5037 and the fourth gear 5038 drives the fixed auxiliary shaft 5036 to rotate. When the third gear 5037 and the fourth gear 5038 rotate, they respectively mesh with the rack plate 5042 at the bottom and push outward in the U-shaped slide rail 5041, thereby driving the clamping plate 5043 fixed on the outside to press against the explosion The inner wall of the hole is fixed, and when the conical serrated blocks 204 at both ends of the barrel 2 are placed against the L-shaped inclined block 1026 in the limit block 102, the fixed rotating shaft 1025 set at the bottom can be rotated to tilt the lower box to drive the conical serrated block 204 to move inward. When the position is fixed, the L-shaped inclined block 1026 is pressed against the inside of the long side plate 1022 to clamp the conical serrated block 204 to prevent it from falling off, and the explosive 3 can be operated for blasting. The above is the entire working principle of the utility model.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A blasting material fixing structure for tunnel blasting, comprising a loading bucket (1), characterized in that: A placement barrel (2) is provided inside the loading barrel (1), and explosives (3) are placed inside the placement barrel (2). A transmission assembly (4) is fixedly arranged at the center of the bottom end of the loading barrel (1). A limiting mechanism (5) is provided on the rear wall of the loading barrel (1). The limiting mechanism (5) comprises a T-shaped box (501). Through grooves (502) are provided on both sides of the interior of the T-shaped box (501) in parallel. The two ends of the outer sides of a fixed assembly (504) are fixedly arranged inside the through grooves (502). A moving assembly (503) is fixedly arranged on the front wall of the inner wall of the T-shaped box (501), and the center of the moving assembly (503) is connected to the rear end of the transmission assembly (4).

2. The blasting material fixing structure for tunnel blasting according to claim 1, characterized in that: A U-shaped groove (101) is provided at the top of the filling barrel (1), and a plurality of groups of limit blocks (102) are fixedly provided on both inner walls of the filling barrel (1).

3. The blasting material fixing structure for tunnel blasting according to claim 2, characterized in that: The limit block (102) comprises a vertical plate (1021), a long side plate (1022) is fixedly arranged on the left side of the vertical plate (1021), a short side plate (1023) is fixedly arranged on the right end of the vertical plate (1021), a fixing block (1024) is fixedly arranged on the upper and lower sides of the front end of the vertical plate (1021), the upper and lower ends of a fixed rotating shaft (1025) are fixedly arranged at the center of the fixing block (1024), and an L-shaped inclined block (1026) is sleeved on the outer side of the fixed rotating shaft (1025).

4. The blasting material fixing structure for tunnel blasting according to claim 1, characterized in that: An inner circular groove (201) is provided at the top of the placement barrel (2), a wiring port (202) is provided at the center of the front end of the placement barrel (2), transverse plates (203) are fixedly provided on the outer sides of both ends of the placement barrel (2), conical sawtooth blocks (204) are fixedly provided at equal distances on the outer sides of the transverse plates (203), and a threaded sleeve (205) is fixedly provided on the front side of the bottom end of the placement barrel (2).

5. The blasting material fixing structure for tunnel blasting according to claim 1, characterized in that: The transmission assembly (4) comprises a threaded rod (401), two sets of limiting sleeves (402) are inserted at the rear end of the threaded rod (401), and a rotating shaft (403) is fixed at the rear end of the threaded rod (401).

6. The blasting material fixing structure for tunnel blasting according to claim 1, characterized in that: The moving assembly (503) comprises a limit plate (5031), a main rotating shaft (5032) is fixedly arranged at the front center of the limit plate (5031), a top end of a chain group (5033) is fixedly arranged at the front end of the main rotating shaft (5032), a bottom end of the chain group (5033) is connected to the outside of the rotating shaft (403), a first gear (5034) and a second gear (5035) are fixedly arranged at the front end of the main rotating shaft (5032), a secondary rotating shaft (5036) is fixedly arranged at both ends of the main rotating shaft (5032), a third gear (5037) and a fourth gear (5038) are respectively fixedly arranged at the front end of the secondary rotating shaft (5036), the right side of the third gear (5037) meshes with the left side of the first gear (5034), and the left side of the fourth gear (5038) meshes with the right side of the second gear (5035).

7. The blasting material fixing structure for tunnel blasting according to claim 1, characterized in that: The fixing assembly (504) comprises a U-shaped slide rail (5041), a rack plate (5042) is placed inside the U-shaped slide rail (5041), and a clamping plate (5043) is fixedly arranged on the outer wall of the rack plate (5042).

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