A rock plug blasting support device

Abstract

The present invention relates to the field of blasting support equipment, and specifically discloses a rock plug blasting support device, wherein the support unit includes a first main anchor rod, a second main anchor rod and a retractable connecting piece; the first main anchor rod and the second main anchor rod have the same structure and are connected by a connecting piece; the first main anchor rod of a support unit is connected to the second main anchor rod of an adjacent support unit, and a plurality of support units are connected to form a circle, which is inserted into a rock plug blasting hole for support. The present invention connects and cooperates with a plurality of support units to support rock plug blasting holes, and uses a connecting piece to adjust the distance between the first main anchor rod and the second main anchor rod, and adjusts the size to adapt to different rock plug blasting holes; uses a second connecting piece between a plurality of support units to adjust the distance between the main anchor rod and the auxiliary anchor rod, and adapts to the size of the rock plug blasting hole through multi-stage adjustment, thereby improving the support effect, avoiding collapse, and ensuring the normal operation of the construction.

Description

Technical Field

[0001] The invention relates to the field of blasting support equipment, and in particular to a rock plug blasting support device. Background Art

[0002] Rock plug blasting support is a common technology used in the construction of water conservancy and hydropower projects. It is mainly used to provide temporary or permanent support when excavating caverns or tunnels in rocks. Rock plug blasting support usually involves a series of operations such as drilling, charging, and detonating rocks to form the required space and structure. Support measures are indispensable in this process because they can prevent rock collapse and ensure construction safety and project quality.

[0003] There are many methods of rock plug blasting support, including pre-splitting blasting, smooth blasting, and modern support methods such as anchors and shotcrete. The choice of these methods depends on the specific engineering conditions, such as geological conditions, rock properties, construction environment and other factors. Rock plug blasting support is a complex and delicate work that requires professional technicians and advanced equipment to complete. Through reasonable design and construction, the blasting effect can be effectively controlled, the impact on the surrounding environment can be reduced, and the safety and quality of the project can be guaranteed.

[0004] When performing rock plug blasting, anchor support is usually used to protect the rock mass. The anchor is mainly composed of an anchor rod body and an anchor fixing section. By anchoring one end of the anchor in a stable rock mass, when the rock plug is blasted and subjected to external vibration force, the anchor can transfer the impact force of the rock plug to the deep stable rock mass, thereby maintaining the stability of the rock mass around the rock plug. When traditional anchor support work is carried out, the rock mass is only protected by a simple anchoring structure. The anchoring structures are independent of each other when used, and the protective effect on the rock mass is relatively small. Summary of the invention

[0005] The object of the present invention is to provide a rock plug blasting support device to solve the problem that the protective effect of the anchoring structure is small and the stability of the rock plug blasting hole is not strong during the rock plug blasting process.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a rock plug blasting support device, comprising a plurality of support units; The support unit comprises a first main anchor rod, a second main anchor rod and a retractable connecting piece; the first main anchor rod and the second main anchor rod have the same structure and are connected by the connecting piece; The first main anchor rod of one support unit is connected to the second main anchor rod of an adjacent support unit, and a plurality of support units are connected to form a circle, which is inserted into the rock plug blasting hole for support.

[0007] As a further technical solution of the above scheme, the connecting part includes a connecting frame, a mounting frame, a threaded tube, a bidirectional screw and an adjusting block; the connecting frame is sleeved to the front end of the second main anchor rod of the first main anchor rod, and the connecting frame is fixed with a nut after being sleeved; there are two mounting frames, which are respectively arranged on the side walls of the connecting frame, and a through groove is provided in the middle of the mounting frame; there are also two threaded tubes, which are respectively arranged in the two through grooves; the two ends of the bidirectional screw rod are respectively threaded into the threaded tube, and the adjusting block is sleeved in the middle of the bidirectional screw rod; rotating the adjusting block drives the bidirectional screw rod to rotate, thereby adjusting the distance between the first main anchor rod and the second main anchor rod.

[0008] As a further technical solution of the above scheme, the connecting member also includes a linkage frame, and a rotating shaft is respectively provided on the left and right sides of the linkage frame, and one side of the mounting frame is connected to the rotating shaft to rotate accordingly.

[0009] As a further technical solution of the above solution, it also includes multiple secondary anchors and second connecting members, the secondary anchors are arranged between the two support units, the left side is connected to the first main anchor of one support unit through the second connecting member, and the right side is connected to the second main anchor of the adjacent support unit through the second connecting member; the second connecting member includes a connecting block, a fixed screw, a rotating screw, a rotating ring seat and a sleeve frame; the right end of the connecting block is hinged to the left side of the connecting frame, and the left end of the connecting block is fixedly connected to the fixed screw; the front end of the secondary anchor is sleeved with a sleeve frame, and a rotating ring seat is provided on the sleeve frame; the right end of the rotating screw is screwed into the fixed screw, and the left end is rotatably connected to the rotating ring seat; the connecting frame and the sleeve frame are arranged behind the front ends of the first main anchor, the second main anchor and the secondary anchor and are fixed using nuts.

[0010] As a further technical solution of the above scheme, the connection relationship between the secondary anchor and the support unit is replaced as follows: the left side of the secondary anchor is connected to the first main anchor of a support unit through a second connecting member, the right side is connected to the left side of another secondary anchor through the second connecting member, and the right side of the other secondary anchor is connected to the second main anchor of the adjacent support unit through the second connecting member.

[0011] As a further technical solution of the above solution, anchoring rings are provided on the first main anchor rod, the second main anchor rod and the auxiliary anchor rod.

[0012] Compared with the prior art, the present invention has the following advantages and beneficial effects: the present invention connects and cooperates with a plurality of support units to support rock plug blasting holes, and uses a connecting piece between the first main anchor rod and the second main anchor rod to adjust the distance, and adjust the size to adapt to different rock plug blasting holes; a second connecting piece is used between the plurality of support units to adjust the distance between the main anchor rod and the auxiliary anchor rod, and the size of the rock plug blasting hole is adapted through multi-stage adjustment, thereby improving the support effect, avoiding collapse, and ensuring the normal operation of the construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a status diagram for the use of this device.

[0014] Figure 2 A schematic diagram of the three-dimensional structure of the support unit.

[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure in the middle.

[0016] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0017] The meanings of the numbers in the figure are: first main anchor rod-1; second main anchor rod-2; connecting piece-3; mounting frame-31; threaded tube-32; bidirectional screw-33; adjusting block-34; through groove-35; linkage frame-36; rotating shaft-361; connecting frame-37; anchor ring-4; auxiliary anchor rod-5; second connecting piece-6; connecting block-61; fixed screw tube-62; rotating screw-63; rotating ring seat-64; fitting frame-65. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical scheme and the technical effects brought about.

[0019] like Figure 1-Figure 4 As shown, a rock plug blasting support device includes a plurality of support units; The support unit comprises a first main anchor rod 1, a second main anchor rod 2 and a retractable connecting member 3; the first main anchor rod 1 and the second main anchor rod 2 have the same structure and are connected by the connecting member 3; The first main anchor rod of one support unit is connected to the second main anchor rod of an adjacent support unit, and a plurality of support units are connected to form a circle, which is inserted into the rock plug blasting hole for support.

[0020] In this embodiment, the first main anchor 1 and the second main anchor 2 are connected by a connecting piece 3 to form a support unit. During support, the first main anchor 1 and the second main anchor 2 work together, and multiple support units are connected to form a circle, which cooperates with the shape of the rock plug blasting hole to support various positions on the inner wall of the hole.

[0021] like Figure 2 and Figure 3As shown, as a preferred embodiment, the connecting member 3 includes a connecting frame 37, a mounting frame 31, a threaded tube 32, a bidirectional screw 33 and an adjusting block 34; the connecting frame 37 is sleeved to the front end of the second main anchor 2 of the first main anchor 1, and the connecting frame 37 is fixed with a nut after being sleeved; there are two mounting frames 31, which are respectively arranged on the side walls of the connecting frame 37, and a through groove 35 is provided in the middle of the mounting frame 31; there are also two threaded tubes 32, which are respectively arranged in the two through grooves 35; the two ends of the bidirectional screw 33 are respectively screwed into the threaded tube 32, and the adjusting block 34 is sleeved in the middle of the bidirectional screw 33; rotating the adjusting block 34 drives the bidirectional screw 33 to rotate, thereby adjusting the distance between the first main anchor 1 and the second main anchor 2. In this embodiment, when the first main anchor rod 1 and the second main anchor rod 2 are connected, a mounting frame 31 is arranged on the connecting frame 37 of the first main anchor rod 1, and a through groove 35 is arranged on the mounting frame 31 as a connecting and mounting part of the bidirectional screw rod 33, and a threaded tube 32 is arranged in the through groove 35; the bidirectional screw rod 33 is threadedly connected and passes through the threaded tube 32. Since the first main anchor rod 1 and the second main anchor rod 2 have the same structure, the same setting is made on the second main anchor rod 2. At this time, the distance between the two main anchor rods is rotated by adjusting the distance between the two main anchor rods to achieve the distance adjustment between the first main anchor rod 1 and the second main anchor rod 2. Multiple support units can also be connected through the connecting piece 3. Different numbers of support units can be set according to the size of the rock plug blasting hole to connect into a circle.

[0022] like Figure 2 and Figure 3 As shown, as a preferred embodiment, the connecting member 3 also includes a linkage frame 36, and a rotation shaft 361 is respectively provided on the left and right sides of the linkage frame 36, and one side of the mounting frame 31 is connected to the rotation shaft 361 and rotates with it. In this embodiment, after the linkage frame 36 is provided, the mounting frame 31 can rotate during adjustment, and at this time, the threaded tube 32 and the bidirectional screw 33 rotate in the through groove 35 to cooperate in adjusting the angle between the first main anchor rod 1 and the second main anchor rod 2, which can better adapt to different rock plug blasting holes, fit the inner wall of the hole, and improve the support effect.

[0023] like Figure 2 and Figure 4As shown, as a preferred embodiment, it also includes a plurality of secondary anchors 5 and a second connecting member 6, wherein the secondary anchor 5 is arranged between two supporting units, and is connected to the first main anchor 1 of one supporting unit by the second connecting member 6 on the left side, and is connected to the second main anchor 2 of the adjacent supporting unit by the second connecting member 6 on the right side; the second connecting member 6 includes a connecting block 61, a fixed screw 62, a rotating screw 63, a rotating ring seat 64 and a sleeve frame 65; the right end of the connecting block 61 is hinged to the left side of the connecting frame 37, and the left end of the connecting block 61 is fixedly connected to the fixed screw 62; the front end of the secondary anchor 5 is sleeved with a sleeve frame 65, and a rotating ring seat 64 is provided on the sleeve frame 65; the right end of the rotating screw 63 is screwed into the fixed screw 62, and the left end is rotatably connected to the rotating ring seat 64; the connecting frame 37 and the sleeve frame 62 are arranged at the front ends of the first main anchor 1, the second main anchor 2 and the secondary anchor 5 and are fixed using nuts. In this embodiment, in order to adapt to different rock plug blasting holes in a larger range, secondary anchor rods 5 are further arranged between multiple support units, and the secondary anchor rods 5 are connected to the first main anchor rods 1 or the second main anchor rods 2 on both sides by using the second connecting piece 6; the connecting block 61 is connected to the connecting frame 37, and the fixed screw tube 62 is connected to the connecting block 61. After the connection, it serves as the connection basis for the rotating screw rod 63. One end of the rotating screw rod 63 is screwed into the fixed screw tube 62, and the other end is rotatably connected to the rotating ring seat 64. The rotating ring seat 64 is also arranged on the sleeve frame 65 to complete the connection between the secondary anchor rod 5 and the main anchor rods on both sides. When in use, the rotating screw rod 63 is rotated to adjust and fix the position of the screw tube 62 to achieve the distance adjustment of the main anchor rods and the secondary anchor rods 5 on both sides to adapt to different rock plug blasting holes; and when supporting special-shaped holes, the distance between the two support units is adjusted by adding different secondary anchor rods 5 to match the rock plug blasting holes.

[0024] As a preferred embodiment, the connection relationship between the secondary anchor rod 5 and the support unit is replaced as follows: the left side of the secondary anchor rod 5 is connected to the first main anchor rod 1 of one support unit through the second connecting member 6, the right side is connected to the left side of another secondary anchor rod through the second connecting member 6, and the right side of the other secondary anchor rod is connected to the second main anchor rod 2 of the adjacent support unit through the second connecting member 6. In this embodiment, the length of the connection is extended by adding the secondary anchor rod 5, and only one secondary anchor rod 5 needs to be added during the connection, which is convenient for adjustment and adapts to more construction conditions.

[0025] like Figure 2 and Figure 4 As shown, as a preferred embodiment, the first main anchor rod 1, the second main anchor rod 2 and the auxiliary anchor rod 5 are provided with an anchor ring 4. In this embodiment, the anchor ring 4 is provided on the main anchor rod and the auxiliary anchor rod 5, which effectively improves the anchoring effect, improves the stability of the device, and prevents the rock plug blasting hole from collapsing.

[0026] The terms “connection” and “fixation” mentioned in the description of the present invention may refer to fixed connection, processing and forming, welding or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0027] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inside", "outside", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying a specific orientation that the device or element referred to must have, and therefore cannot be understood as a limitation on the present invention.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rock plug blasting support device, characterized in that: including a plurality of support units; A support unit comprises a first main anchor rod (1), a second main anchor rod (2) and a retractable connecting piece (3); the first main anchor rod (1) and the second main anchor rod (2) have the same structure and are connected via the connecting piece (3); The first main anchor rod of one support unit is connected to the second main anchor rod of an adjacent support unit. A plurality of support units are connected to each other to form a circle, which is inserted into the rock plug blasting hole for support.

2. A rock plug blasting support device as claimed in claim 1, characterized in that: The connecting member (3) comprises a connecting frame (37), a mounting frame (31), a threaded tube (32), a bidirectional screw rod (33) and an adjusting block (34); the connecting frame (37) is sleeved onto the front end of the second main anchor rod (2) of the first main anchor rod (1), and the connecting frame (37) is fixed by a nut after being sleeved; two mounting frames (31) are provided, which are respectively arranged on the side walls of the connecting frame (37), and a through groove (35) is provided in the middle of the mounting frame (31); two threaded tubes (32) are also provided, which are respectively arranged in the two through grooves (35); the two ends of the bidirectional screw rod (33) are respectively screwed into the threaded tube (32), and the adjusting block (34) is sleeved in the middle of the bidirectional screw rod (33); the adjusting block (34) is rotated to drive the bidirectional screw rod (33) to rotate, thereby adjusting the distance between the first main anchor rod (1) and the second main anchor rod (2).

3. A rock plug blasting support device as claimed in claim 2, characterized in that: The connecting member (3) further comprises a linkage frame (36), wherein a rotation shaft (361) is respectively provided on the left and right sides of the linkage frame (36), and one side of the mounting frame (31) is connected to the rotation shaft (361) to rotate accordingly.

4. A rock plug blasting support device as claimed in claim 1, characterized in that: The auxiliary anchor rod (5) also comprises a plurality of auxiliary anchor rods (5) and a second connecting member (6). The auxiliary anchor rod (5) is arranged between two supporting units, and is connected to the first main anchor rod (1) of one supporting unit on the left side through the second connecting member (6), and is connected to the second main anchor rod (2) of the adjacent supporting unit on the right side through the second connecting member (6); the second connecting member (6) comprises a connecting block (61), a fixed screw tube (62), a rotating screw rod (63), a rotating ring seat (64) and a sleeve frame (65); the right end of the connecting block (61) is hinged to the connecting block (61) On the left side of the connecting frame (37), the left end of the connecting block (61) is fixedly connected to the fixed screw tube (62); the front end of the auxiliary anchor rod (5) is sleeved with a sleeve frame (65), and the sleeve frame (65) is provided with a rotating ring seat (64); the right end of the rotating screw rod (63) is screwed into the fixed screw tube (62), and the left end is rotatably connected to the rotating ring seat (64); the connecting frame (37) and the sleeve frame (62) are arranged at the front ends of the first main anchor rod (1), the second main anchor rod (2) and the auxiliary anchor rod (5) and fixed using nuts.

5. A rock plug blasting support device as claimed in claim 4, characterized in that: The connection relationship between the secondary anchor rod (5) and the support unit is replaced as follows: the left side of the secondary anchor rod (5) is connected to the first main anchor rod (1) of one support unit via a second connecting piece (6), the right side is connected to the left side of another secondary anchor rod via the second connecting piece (6), and the right side of the other secondary anchor rod is connected to the second main anchor rod (2) of the adjacent support unit via the second connecting piece (6).

6. A rock plug blasting support device as claimed in claim 4, characterized in that: Anchor rings (4) are provided on the first main anchor rod (1), the second main anchor rod (2) and the auxiliary anchor rod (5).

Images