Safety protection device for exploratory well excavation

Abstract

The utility model relates to the technical field of geological survey, in particular to a safety protection device for exploratory well excavation, which comprises a plurality of expanding and supporting components and a plurality of reinforcing rods detachably connected with the expanding and supporting components, the expanding and supporting components are arranged in a ring-like structure, and a protective net is mounted on the outer sides of the expanding and supporting components; the supporting pieces are hinged to the reinforcing rods, connecting rods are hinged to the supporting pieces, and the connecting rods on every two adjacent supporting pieces are fixed after rotating to the butt joint position, so that the supporting pieces and the connecting rods are arranged above the exploratory well opening. The two connecting rods are fixed, at the moment, the supporting pieces do not rotate relative to the reinforcing rods under the action of the connecting rods, and therefore the expanding and supporting assembly and the protective net are effectively supported, operation is convenient, and other auxiliary fixing or hanging structures do not need to be adopted for fixing or hanging the expanding and supporting assembly and the protective net.

Description

Technical Field

[0001] The utility model relates to the technical field of geological exploration, in particular to a safety protection device for exploratory well excavation. Background Art

[0002] In engineering geological surveys, in order to obtain first-hand physical and mechanical indicators of rock and soil, obtain relevant data of strata, and identify stratum boundaries, exploration wells are usually excavated for exploration. As a commonly used exploration method, exploration wells have the advantages of low cost, high speed, and no influence from terrain. However, during the excavation of exploration wells, the safety of construction workers has always been a difficult problem, especially in geologically soft areas. Rocks and sand will fall from the inner wall of the exploration well, affecting the safety of construction workers and rock and soil sampling.

[0003] An existing protective device further prevents the support ring and the protective net from falling by using a hook and a support frame. However, the support frame structure requires setting a bracket at the location of the wellhead in advance, and then hanging the protective net on the bracket. There are many steps during construction and the operation is inconvenient. Utility Model Content

[0004] The purpose of the utility model is to provide a safety protection device for exploration well excavation to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A safety protection device for exploratory well excavation, comprising:

[0007] A plurality of expansion and support components and a plurality of reinforcing rods detachably connected to the expansion and support components, wherein the expansion and support components are arranged in a ring-like structure, and a protective net is installed on the outer side of the plurality of expansion and support components;

[0008] It also includes a support member hinged to the reinforcing rod, a connecting rod is hinged on the support member, and the connecting rods on two adjacent support members are rotated to a docking position and then fixed so that the support member and the connecting rod are placed above the wellhead.

[0009] The safety protection device for exploratory well excavation as described above: the expansion support assembly includes a plurality of arc-shaped members distributed along the circumference, and two adjacent arc-shaped members are connected by fixing bolts.

[0010] The safety protection device for exploratory well excavation as described above: the arc-shaped member includes a rigid support portion located in the middle position and elastic connection portions located at both ends of the rigid support portion.

[0011] The safety protection device for exploratory well excavation as described above: the inner arc surface of the rigid support part is provided with a connecting groove, the support member passes through the connecting groove and can be fixed by a fixing member.

[0012] The safety protection device for exploratory well excavation as described above: A plurality of connection holes for the penetration connection of fixing bolts are provided on the elastic connection part.

[0013] The safety protection device for exploratory well excavation as described above: Embedded grooves are symmetrically arranged on one of the support members, and the connecting rod is placed in the embedded grooves and hinged to the inner wall of the embedded grooves.

[0014] The safety protection device for exploratory well excavation as described above: A fixing hole is provided at one end of the connecting rod away from its hinge connection with the embedded groove. When the fixing holes on the two connecting rods coincide, they can be fixed through a fixing structure.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] Multiple reinforcing rods are arranged to vertically support multiple expansion and support components, thereby effectively supporting the protective net vertically, while ensuring that the multiple expansion and support components will not tilt due to gravity and lose the support effect, and at the same time reducing the deformation of the protective net caused by the gravity of the expansion and support components.

[0017] After the protective net connected to the expansion and support components is integrally placed in the exploratory well, the support member is located at the upper end of the exploratory well opening. Then, the support member is rotated to contact the ground of the exploratory well opening. The connecting rods in two adjacent support members are rotated out, and then the two connecting rods are fixed. At this time, the support member will no longer rotate relative to the reinforcing rod under the action of the connecting rod, thereby effectively supporting the expansion and support components and the protective net. The operation is convenient, and there is no need to use other auxiliary fixing or suspension structures to fix or hoist the expansion and support components and the protective net. Description of the Drawings

[0018] Figure 1 It is the front view of the safety protection device for exploratory well excavation.

[0019] Figure 2 It is the structural schematic diagram of the safety protection device for exploratory well excavation after removing the protective net.

[0020] Figure 3 It is the top view of the safety protection device for exploratory well excavation after removing the protective net.

[0021] Figure 4 It is the structural schematic diagram of the expansion and support component in the safety protection device for exploratory well excavation.

[0022] Reference Signs: 1 - Expansion and support component; 101 - Arc-shaped member; 1011 - Rigid support part; 1012 - Elastic connection part; 1013 - Connection groove; 1014 - Connection hole; 102 - Fixing bolt; 2 - Reinforcing rod; 3 - Support member; 301 - Embedded groove; 302 - Connecting rod; 3021 - Fixing hole; 4 - Protective net. Detailed Embodiments

[0023] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. Identical reference numerals in the drawings denote elements having the same or similar functions. Although various aspects of the embodiments are shown in the drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0024] The term "exemplary" used herein means "serving as an example, embodiment, or illustration". Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0025] In addition, to better illustrate the present application, numerous specific details are given in the following detailed embodiments. Those skilled in the art should understand that the present application can be implemented without some of these specific details. In some instances, methods, means, and elements well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0026] Please refer to Figures 1 to 4 , in an embodiment of the present utility model, a safety protection device for exploratory well excavation includes:

[0027] A plurality of expansion and support components 1 and a plurality of reinforcing rods 2 detachably connected to the expansion and support components 1. The expansion and support components 1 are arranged in an approximately annular structure, and a protective net 4 is installed on the outer side of the plurality of expansion and support components 1;

[0028] It further includes a support member 3 hinged to the reinforcing rod 2. A connecting rod 302 is hinged to the support member 3. After the connecting rods 302 on two adjacent support members 3 are rotated to the docking position, they are fixed, so that the support member 3 and the connecting rod 302 are placed above the exploratory well opening.

[0029] In this embodiment, a plurality of reinforcing rods 2 are provided to vertically support the plurality of expansion and support components 1, thereby effectively vertically supporting the protective net 4. At the same time, it is ensured that the plurality of expansion and support components 1 will not tilt due to gravity and lose the support effect, and at the same time, the deformation of the protective net 4 caused by the gravity of the expansion and support components 1 is reduced.

[0030] At the same time, after the protective net 4 connected to the expansion and support components 1 is integrally placed in the exploratory well, the support member 3 is located at the upper end of the exploratory well opening. Then the support member 3 is rotated to contact the ground of the exploratory well opening. The connecting rods 302 in two adjacent support members 3 are rotated out, and then the two connecting rods 302 are fixed. At this time, the support member 3 no longer rotates relative to the reinforcing rod 2 under the action of the connecting rod 302, thereby effectively supporting the expansion and support components 1 and the protective net 4. The operation is convenient, and there is no need to use other auxiliary fixing or suspension structures to fix or hoist the expansion and support components 1 and the protective net 4.

[0031] Preferably, four reinforcing rods 2 are provided, and correspondingly, four support members 3 are also provided.

[0032] Further, the expansion and support assembly 1 includes a plurality of arc-shaped members 101 distributed along the circumference. Adjacent two arc-shaped members 101 are connected by fixing bolts 102. The arc-shaped member 101 includes a rigid support portion 1011 at the middle position and elastic connection portions 1012 at both ends of the rigid support portion 1011. A connection groove 1013 is provided on the inner arc surface of the rigid support portion 1011. The support member 3 passes through the connection groove 1013 and can be fixed by a fixing member.

[0033] It should be noted that when the wellhead is relatively small, the connection position between adjacent two arc-shaped members 101 can be adaptively adjusted, so that the overall support range of the expansion and support assembly 1 becomes smaller, thereby improving the overall applicable range of the device.

[0034] At the same time, since the elastic connection portion 1012 has a restoring force toward the side of the protective net 4, it further supports the exploration well, and can offset the extrusion force generated by the loose soil in the exploration well on the protective net 4 to a certain extent.

[0035] Specifically, a plurality of connection holes 1014 for the fixing bolts 102 to pass through and connect are provided on the elastic connection portion 1012. One of the connection holes 1014 on the two elastic connection portions 1012 on both sides of one rigid support portion 1011 is a threaded hole. For the convenience of understanding, the elastic connection portion 1012 on one side of the rigid support portion 1011 is defined as A, and the elastic connection portion 1012 on the other side is defined as B. The connection hole 1014 on A is a smooth through hole, and the connection hole 1014 on B is a threaded hole, so as to facilitate connection and fixation with the fixing bolt 102.

[0036] Furthermore, an embedded groove 301 is symmetrically provided on one support member 3. The connecting rod 302 is placed in the embedded groove 301 and hinged to the inner wall of the embedded groove 301. The embedded groove 301 is mainly provided to facilitate the storage of the connecting rod 302, reduce the space occupied by the connecting rod 302 when not in use, and facilitate transportation and handling.

[0037] Preferably, a fixing hole 3021 is provided at one end of the connecting rod 302 away from its hinge with the embedded groove 301. When the fixing holes 3021 on two connecting rods 302 coincide, they can be fixed by a fixing structure, and the fixing structure includes but is not limited to a bolt structure.

[0038] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A safety protection device for exploration well excavation, characterized in that: include: A plurality of expansion and support components (1) and a plurality of reinforcing rods (2) detachably connected to the expansion and support components (1), wherein the expansion and support components (1) are arranged in a ring-like structure, and a protective net (4) is installed on the outer side of the plurality of expansion and support components (1); It also includes a support member (3) hinged to the reinforcing rod (2), a connecting rod (302) hinged on the support member (3), and the connecting rods (302) on two adjacent support members (3) are rotated to a docking position and then fixed, so that the support member (3) and the connecting rod (302) are placed above the wellhead.

2. A safety protection device for exploration well excavation according to claim 1, characterized in that: The expansion and support assembly (1) comprises a plurality of arc-shaped members (101) distributed along a circumference, and two adjacent arc-shaped members (101) are connected by fixing bolts (102).

3. A safety protection device for exploration well excavation according to claim 2, characterized in that: The arc-shaped member (101) comprises a rigid support portion (1011) located at a middle position and elastic connection portions (1012) located at both ends of the rigid support portion (1011).

4. A safety protection device for exploration well excavation according to claim 3, characterized in that: The inner arc surface of the rigid support portion (1011) is provided with a connection groove (1013), and the support member (3) passes through the connection groove (1013) and can be fixed by a fixing member.

5. A safety protection device for exploration well excavation according to claim 3, characterized in that: The elastic connection portion (1012) is provided with a plurality of connection holes (1014) for fixing bolts (102) to penetrate and connect.

6. A safety protection device for exploration well excavation according to claim 1, characterized in that: An embedded groove (301) is symmetrically arranged on one of the support members (3), and the connecting rod (302) is placed in the embedded groove (301) and is hinged to the inner wall of the embedded groove (301).

7. A safety protection device for exploration well excavation according to claim 6, characterized in that: A fixing hole (3021) is provided at one end of the connecting rod (302) away from the hinged end with the embedded groove (301); when the fixing holes (3021) on the two connecting rods (302) overlap, they can be fixed by a fixing structure.

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