Water-adjacent blast hole protection device

Abstract

The utility model discloses an adjacent water blast hole protection device which comprises at least one small device, the small device comprises a supporting pipe, a push rod and a protection film, a plurality of frameworks are arranged on the supporting pipe at intervals, and each framework comprises a plurality of ribs which can rotate relative to the supporting pipe; the push rod is movably arranged in the supporting pipe, has a moving stroke and is used for driving the ribs to contract or expand relative to the supporting pipe. The protective films are respectively connected to the ribs. According to the technical scheme, all the ribs contract relative to the supporting pipe, so that the supporting pipe can completely stretch into the blast hole, then the push rod is pushed, all the ribs are driven to be unfolded relative to the supporting pipe, then the compressed protective film stretches and fills the whole blast hole, and the blast hole is prevented from being blocked or damaged. The device is simple in structure, easy to operate and good in blast hole protection effect.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting construction, and particularly relates to a protection device for adjacent water blast holes. Background Art

[0002] In recent years, complex blasting projects such as cofferdam blasting, plug blasting, and underwater blasting have become obstacles to various key projects. Since such blasting projects need to strictly formulate drilling plans according to the rise and fall of the tide level, it has a great impact on the construction period progress. Generally speaking, all drilling rock drilling work needs to be completed during the ebb tide. However, due to geological conditions, the drilling work is not smooth, and often only part of the drilling work can be completed during the ebb tide before the flood tide comes. In such a situation, the blast holes often have phenomena such as blockage and damage, which greatly increases the technical difficulty and management difficulty of adjacent water blasting operations. Content of the Utility Model

[0003] The main purpose of the utility model is to propose a protection device for adjacent water blast holes, aiming to solve the technical problems that the blast holes are easily damaged and blocked in various existing adjacent water blasting operations.

[0004] To achieve the above purpose, the protection device for adjacent water blast holes proposed by the utility model includes:

[0005] A support pipe, on which a plurality of skeletons are arranged at intervals, and the skeleton includes a plurality of ribs rotatably arranged relative to the support pipe;

[0006] A push rod, which is movably arranged in the support pipe and has a moving stroke, and is used to drive each rib to contract or expand relative to the support pipe; and,

[0007] A protective film, which is respectively connected to each rib.

[0008] Optionally, the small device further includes a plurality of connecting rods, and both ends of the connecting rod are respectively hinged to each rib and the push rod.

[0009] Optionally, a clamping portion is provided at the end of the push rod and is exposed outwards from one end of the support pipe, and a coordination portion connected to the clamping portion is provided at the other end of the support pipe for connecting a plurality of the small devices to each other.

[0010] Optionally, the clamping portion is a notch on the push rod, and the coordination portion is a slider movably arranged in the support pipe.

[0011] Optionally, a pressing block is elastically arranged at the other end of the support pipe, and is used to press the push rod when the notch and the slider are mutually clamped.

[0012] Optionally, a knob is further provided at the other end of the support tube, and the knob is connected to the slider for driving the slider to move.

[0013] Optionally, the framework includes three ribs.

[0014] Optionally, the ribs of the framework are equally spaced.

[0015] Optionally, the framework is made of steel.

[0016] Optionally, the protective film is made of polyethylene.

[0017] Optionally, when each rib is deployed relative to the support tube, the protective film is columnar.

[0018] In the technical solution of the present utility model, by contracting each rib relative to the support tube, the support tube can be fully inserted into the blast hole, and then the push rod is pushed to drive each rib to deploy relative to the support tube, so that the compressed protective film stretches and fills the entire blast hole, preventing the blast hole from being blocked or damaged. The device has a simple structure and is easy to operate, and has a good protection effect on the blast hole. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model, and for those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0020] Figure 1 It is a cross-sectional view of an embodiment of the adjacent water blast hole protection device provided by the present utility model;

[0021] Figure 2 It is a bottom view of an embodiment of the adjacent water blast hole protection device provided by the present utility model;

[0022] Figure 3 It is a top view of an embodiment of the adjacent water blast hole protection device provided by the present utility model

[0023] Figure 4 It is a front view of another embodiment of the adjacent water blast hole protection device provided by the present utility model.

[0024] In the figure: 100 - adjacent water blast hole protection device, 1 - support tube, 2 - framework, 3 - rib, 4 - push rod, 5 - protective film, 6 - connecting rod, 7 - clamping portion, 8 - coordination portion, 9 - pressing block, 10 - knob.

[0025] The realization of the purpose, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0027] For a better description and illustration of the embodiments of the present application, one or more accompanying drawings may be referred to, but the additional details or examples used to describe the drawings should not be considered as limiting the scope of any of the utility models, the currently described embodiments or the preferred modes of the present application.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model, rather than indicating that the device referred to must have a specific orientation or operate in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs. The terms used in the description of this application herein are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0030] Due to geological conditions, the drilling work is not smooth, often resulting in only part of the drilling work being completed during the ebb tide and then the flood tide coming. In such a situation, the blast holes often have phenomena such as blockage and damage, greatly increasing the technical difficulty and management difficulty of the water-adjacent blasting operation.

[0031] In view of this, the present utility model provides a water-adjacent blast hole protection device. Figures 1-3 This is an embodiment of the water-adjacent blast hole protection device provided by the present utility model. Please refer to Figures 1-3 , the water-adjacent blast hole protection device 100 includes at least one small device, and multiple small devices can be connected to each other to increase the length of the device so that it can adapt to deeper blast holes. Among them, each small device includes a support pipe 1, a push rod 4 and a protective film 5.

[0032] Specifically, a plurality of skeletons 2 are arranged at intervals on the support tube 1. In this embodiment, there are two, and they are respectively arranged near both ends of the support tube 1. Each skeleton 2 includes a plurality of ribs 3, and each rib 3 can rotate relative to the support tube 1, that is, rotate within the axial section plane of the support tube 1. The push rod 4 is movably arranged in the support tube 1 and has a moving stroke. Within the moving stroke of the push rod 4, the push rod 4 can drive each rib 3 to contract or expand relative to the support tube 1. The protective film 5 is respectively connected to the ribs 3 of the two skeletons 2, and can be compressed as each rib 3 contracts and stretched as each rib 3 expands. It should be noted that there are various ways for the push rod 4 to drive each rib 3 to move. Each rib 3 can be hinged to the outer wall of the support tube 1 or to a kit on the outer wall of the support tube 1. By setting a connecting rod, driving the push rod 4 to drive the connecting rod and indirectly rotate the rib 3. Please refer to Figure 4 , or each rib 3 can directly pass through the support tube 1 and be hinged to the push rod 4, and drive the rib 3 to rotate by driving the push rod 4. Of course, the way for the push rod 4 to drive the rib 3 to rotate is not limited to this, and will not be elaborated in detail here.

[0033] In the technical solution of the present utility model, by contracting each rib 3 relative to the support tube 1, the support tube 1 can be completely inserted into the blast hole, and then the push rod 4 is pushed to drive each rib 3 to expand relative to the support tube 1, so that the compressed protective film 5 stretches and fills the entire blast hole, preventing the blast hole from being blocked or damaged. The structure of this device is simple, easy to operate, and has a good protection effect on the blast hole.

[0034] To improve the stability when each rib 3 expands, an indirect driving method using a connecting rod is adopted. Please refer to Figure 1 , in an embodiment of the present utility model, each small device further includes a plurality of connecting rods 6. The two ends of the connecting rod 6 are respectively hinged to each rib 3 and the push rod 4. When the moving stroke of the push rod 4 in the support tube 1 reaches the maximum, each rib 3 expands and extends radially along the support tube 1. At this time, the connecting rod 6 can support the rib 3. It should be noted that a chute through which the connecting rod 6 passes and moves is provided on the tube wall of the support tube 1.

[0035] It should be noted that two stoppers (not shown in the figure) are provided in the support tube 1 to limit the moving stroke of the push rod 4 in the support tube 1. When the push rod 4 moves axially upward along the support tube 1 to one of the stoppers, the ribs 3 of each skeleton 2 contract; when the push rod 4 moves axially downward along the support tube 1 to the other stopper, the ribs 3 of each skeleton 2 expand and extend radially along the support tube 1. During specific use, the push rod 4 moves axially downward along the support tube 1, that is, pushes the push rod 4 towards the bottom of the blast hole, just expanding each rib 3 and making the protective film 5 fill the blast hole.

[0036] In addition, the length of each rib 3 is related to the aperture of the blast hole. In an embodiment of the present invention, the framework 2 further includes a kit (not shown in the figure) provided on the support tube 1, and each rib is hinged to the kit. By replacing the framework 2 with ribs 3, the entire protection device 100 can be adapted to blast holes with different apertures.

[0037] For the convenience of connection between each small device, please refer to Figure 1 and Figure 4 In an embodiment of the present invention, a clamping portion 7 is provided at the end of the push rod 4 and exposed outward from one end of the support tube 1, and a coordination portion 8 connected to the clamping portion 7 is provided at the other end of the support tube 1. Multiple small devices can be connected end to end and fixed by the clamping between the clamping portion 7 and the coordination portion 8, so that the length of the entire protection device 100 can be extended to adapt to blast holes with different depths.

[0038] Furthermore, please refer to Figure 1 and Figure 4 In an embodiment of the present invention, the clamping portion 7 is a notch on the push rod 4, and the coordination portion 8 is a slider movably provided in the support tube 1. When the push rod 4 of one small device extends into the support tube 1 of another small device, the notch at the end of the push rod 4 corresponds to the position of the slider. At this time, the slider is pushed into the notch, and the fixed connection between the push rod 4 and the support tube 1 is realized. When multiple small devices are connected into an entire device and inserted into the blast hole, only by pushing the push rod 4 outside the blast hole can all the ribs 3 on each small device be unfolded, and the protective film 5 will fill the blast hole.

[0039] To make the connection between adjacent two small devices more stable, please refer to Figure 1 and Figure 4 In an embodiment of the present invention, a pressing block 9 is elastically provided at the other end of the support tube 1. Specifically, a spring is provided on the support tube 1 near the mating portion, that is, the slider. The spring is connected to the pressing block 9. When the push rod 4 enters the support tube 1, it squeezes the pressing block 9 and compresses the spring. When the slider and the notch on the push rod 4 are clamped with each other, the pressing block 9 presses the push rod 4, so that the push rod 4 and the slider are pressed against each other tightly.

[0040] For the convenience of disassembling each interconnected small device, please refer to Figure 1 and Figure 4 In an embodiment of the present invention, a knob 10 is further provided at the other end of the support tube 1. The knob 10 is threadedly connected to an external member on the tube wall of the support tube 1, and the knob 10 is connected to the slider. By turning the knob 10, the slider can be driven to move, so that it is clamped or unclamped with the notch of the push rod 4. Of course, the knob 10 can also be replaced with a button.

[0041] As a preferred embodiment, each skeleton 2 includes three ribs 3, and the three ribs 3 are evenly distributed at equal intervals, which has good stability. Each rib 3 of each skeleton 2 has the same length. When each rib 3 is unfolded relative to the support pipe 1, the protective film 5 is distributed in a columnar shape in the blast hole. Of course, the number of ribs 3 can also be selected as other values, which will not be elaborated in detail here.

[0042] Preferably, the material of each rib 3 of the skeleton 2 is steel, and an anti-corrosion coating is applied to prevent oxidation by seawater, air, etc. The material of the protective film 5 is polyethylene, which has good ductility and strength.

[0043] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0044] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. An apparatus for protecting blast holes in adjacent water, characterized in that, Comprising at least one small device, the small device comprising: A support tube, on which a plurality of skeletons are arranged at intervals, the skeletons comprising a plurality of ribs rotatably arranged relative to the support tube; A push rod, which is movably arranged in the support tube and has a moving stroke for driving each of the ribs to contract or expand relative to the support tube; and, A protective film, which is respectively connected to each of the ribs.

2. The adjacent water cannon hole protection device according to claim 1, characterized in that, The small device further comprises a plurality of connecting rods, and two ends of each connecting rod are respectively hinged to each rib and the push rod.

3. The adjacent water cannon hole protection device according to claim 1, characterized in that, A clamping portion is provided at an end of the push rod and is exposed outward from one end of the support tube, and a coordination portion connected to the clamping portion is provided at the other end of the support tube for connecting a plurality of the small devices to each other.

4. The adjacent water hole protection device according to claim 3, characterized in that, The clamping portion is a notch on the push rod, and the coordination portion is a slider movably arranged in the support tube.

5. The adjacent water blast hole protection device according to claim 4, characterized in that, An abutting block is elastically provided at the other end of the support tube for pressing the push rod tightly when the notch and the slider are clamped with each other.

6. The device for protecting adjacent water holes according to claim 4, wherein, A knob is further provided at the other end of the support tube, and the knob is connected to the slider for driving the slider to move.

7. The adjacent water hole protection device according to claim 1, characterized in that, The skeleton comprises 3 ribs.

8. The adjacent water hole protection device according to claim 1, wherein, The ribs of the skeleton are equidistantly distributed.

9. The adjacent water hole protection device according to claim 1, wherein, The material of the protective film is polyethylene.

10. The adjacent water blasthole protection device according to claim 1, characterized in that, When each of the ribs expands relative to the support tube, the protective film is in a columnar shape.

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