A small circular wellhead stabilizing device for geological exploration

Abstract

The utility model discloses a small circular well mouth stabilizing device for geological exploration, belonging to the technical field of geological drilling supporting equipment; the utility model is installed in a small circular well for groundwater sampling, the small circular well comprises a wellbore extending out of the ground and a well chamber located under the ground, the wellbore is communicated with the well chamber, a base is cast around the lower end of the wellbore, the stabilizing device protects the wellbore, the upper end of the well chamber and the base, the stabilizing device comprises a base cover, a tube hoop and a lever support; the base cover is buckled on the base, lever supports are respectively arranged on the base cover on one opposite side of the wellbore, two tube hoops are clamped in the wellbore, the tube hoops and the lever support are arranged along a straight line, a first bolt assembly is arranged between the tube hoop and the lever support on the same side of the wellbore, the tube hoop is tightened by the first bolt assembly and the lever support to be closely attached to the upper end of the well chamber and the inner side wall of the wellbore; the utility model can well reinforce the well mouth of the small circular well, making it more stable and durable.

Description

Technical Field

[0001] The utility model relates to a wellhead stabilizing device, in particular to a small circular wellhead stabilizing device for geological exploration, belonging to the technical field of geological drilling supporting equipment. Background Art

[0002] Geological exploration can be broadly understood as geological work. It is an investigation and research work on the geological conditions such as rocks, stratigraphic structures, minerals, groundwater, and landforms in a certain area using geological exploration methods such as surveying and mapping, geophysical exploration, geochemical prospecting, drilling, pit exploration, sampling and testing, and geological remote sensing based on the needs of economic construction, national defense construction, and scientific and technological development. Surveying and mapping, geophysical exploration, geochemical prospecting, drilling, pit exploration, sampling and testing, and geological remote sensing are necessary technical means or methods selected by geological exploration to obtain more and better geological results in a shorter time and with less workload. The use or construction process of these methods or means also falls within the scope of geological exploration.

[0003] Drilling is a technical method often used in geological exploration. It refers to the use of equipment to drill holes underground in order to explore mineral deposits, stratum structures, soil properties, etc., to extract physical samples (such as groundwater, rock formations, etc.) for analysis and research to obtain relevant data. Drilling is a cylindrical circular hole with a small diameter and a large depth drilled underground by drilling equipment during the drilling process. It is also called a well or a small round well, etc. It is a crucial part of the drilling operation.

[0004] Most of the existing wells, especially the small circular wells for groundwater sampling, have no supporting reinforcement structure. Most of them are reinforced concrete poured inside the wellhead to improve the stability of the wellhead. However, after long-term use, the wellhead is prone to damage, affecting groundwater sampling. There are also a few that weld and fix steel plate support plates on the outside of the wellhead. Although it plays a role in reinforcing the wellhead and supporting the sampling equipment, it has the disadvantages of being inconvenient for quick fixing and installation, low installation efficiency and limited protection range. Summary of the invention

[0005] In order to overcome the above-mentioned deficiencies of the prior art, the utility model provides a small circular wellhead stabilizing device for geological exploration.

[0006] The technical solution adopted by the utility model is: design a small circular well mouth stabilizing device for geological exploration, which is installed in a small circular well for groundwater sampling. The small circular well includes a wellbore extending out of the ground and a well chamber located under the ground. The wellbore is connected with the well chamber. A base is cast around the lower end of the wellbore. The stabilizing device protects the wellbore, the upper end of the well chamber and the base. The stabilizing device includes a base cover, a tube hoop and a lever support. The base cover is buckled on the base, and a clearance hole is arranged in the middle. The wellbore passes through the base cover through a clearance hole, and leverage supports are respectively arranged on the base cover on the opposite side of the wellbore. The two tube hoops are clamped in the wellbore and extend into the upper end of the well chamber. A flange plate is arranged on the upper end of the tube hoop, and the flange plate is against the upper end surface of the wellbore. The tube hoop and the leverage support are arranged along a straight line, and a first bolt assembly is arranged between the tube hoop and the leverage support on the same side of the wellbore. The tube hoop is tightened with the leverage support through the first bolt assembly to be tightly attached to the upper end of the well chamber and the inner wall of the wellbore.

[0007] Furthermore, the base cover of the present design includes a base portion covering the base and a ground surface portion extending from the lower end of the base portion to the surrounding areas, the ground where the ground surface portion is located is provided with a groove for accommodating the ground surface portion, and a yield hole is opened in the middle of the base portion.

[0008] Furthermore, the base of the present design is a rectangular base, and the upper surfaces of the base portion and the ground surface portion are respectively provided with anti-slip stripes, and the anti-slip stripes are raised herringbone stripes.

[0009] Furthermore, a right-angle plate is provided on the flange plate of the present design, and limiting holes are respectively provided on opposite sides of the wellbore mounting hoop, and a second bolt assembly is connected between the right-angle plate and the hoop, and the second bolt assembly is slidably inserted into the limiting hole.

[0010] Furthermore, in the present design, one end of the first bolt assembly is connected to the lever support, and the other end is connected to the right-angle plate. The tube hoop is connected and tightened with the lever support by means of the right-angle plate and the first bolt assembly.

[0011] Furthermore, the leverage support described in the present design includes a support plate, the support plate is fixedly connected to the base cover, and the first bolt assembly is connected to the support plate.

[0012] Furthermore, the lever support described in the present design also includes a rib plate, and a rib plate is respectively arranged on both sides of the support plate, and the rib plates are respectively fixedly connected to the base cover and the support plate.

[0013] Furthermore, the present design also includes a manhole cover for shielding the upper port of the wellbore, one end of the manhole cover is hinged to a right-angle plate on one of the barrel hoops, and the manhole cover rests on a support plate after being opened 180°.

[0014] Furthermore, a receiving cavity is provided in the middle of the manhole cover of the present design, and a plurality of criss-cross partitions are provided in the receiving cavity, and the partitions divide the receiving cavity into a plurality of grids for accommodating water sample containers.

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

[0016] The utility model protects the wellbore, the upper end of the well chamber and the base of the small circular well for groundwater sampling through the arrangement of the base cover, the tube hoop and the lever support, strengthens the wellhead and the surrounding structure, is simple to install and easy to operate, supports and fixes the sampling wellhead, effectively improves the reinforcement effect of the sampling wellhead, and can ensure the stability of the sampling wellhead. The tube hoop is clamped in the wellbore and extends into the upper end of the well chamber to fix and tighten, squeeze the inner wall, fix the inner wall, prevent the wellhead of the sampling well from collapsing, and effectively avoid affecting the sampling work. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic cross-sectional view of the utility model installed in a small circular well.

[0019] Figure 2 It is a schematic diagram of an axonometric view of the utility model installed in a small circular well.

[0020] Figure 3 It is a schematic diagram of the axonometric drawing of the utility model.

[0021] Figure 4 It is a schematic cross-sectional view of the utility model.

[0022] In the figure: 1, shaft; 2, well chamber; 3, base cover; 4, barrel hoop; 5, lever support; 6, flange plate; 7, first bolt assembly; 8, base portion; 9, ground surface portion; 10, right-angle plate; 11, second bolt assembly; 12, support plate; 13, rib plate; 14, well cover; 15, accommodating chamber. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of 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.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Example 1

[0026] like Figure 1-Figure 4 As shown: a wellhead stabilizing device for a small circular well used for geological exploration, the wellhead stabilizing device is installed in a small circular well for groundwater sampling, the small circular well for groundwater sampling includes a wellbore 1 (usually cast with reinforced concrete) extending out of the ground and a well chamber 2 located below the ground, the wellbore 1 is connected to the well chamber 2, and a rectangular base is cast around the lower end of the wellbore 1. The wellbore 1, the upper end of the well chamber 2 (mainly protecting the inner walls of the two and the upper end of the wellbore 1) and the base are protected by the stabilizing device, the stabilizing device includes a base cover 3, a tube hoop 4 and a lever support 5; the base cover 3 is buckled on the base to protect the exposed part of the concrete base, a clearance hole is provided in the middle of the base cover 3, the wellbore 1 passes through the base cover 3 through the clearance hole, and lever supports 5 are respectively provided on the base cover 3 on the opposite side of the wellbore 1, and the two tube hoops 4 are clamped in the wellbore 1 and Extending into the upper end of the well chamber 2, the upper end of the tube hoop 4 is provided with a flange plate 6, and the flange plate 6 is against the upper end surface of the well shaft 1 to protect the upper end surface of the well shaft 1. The tube hoop 4 and the lever support 5 are arranged along a straight line, and a first bolt assembly 7 is provided between the tube hoop 4 and the lever support 5 on the same side of the well shaft 1. The tube hoop 4 is tightened by the first bolt assembly 7 and the lever support 5 to be tightly attached to the upper end of the well chamber 2 and the inner side wall of the well shaft 1, thereby forming support and protection for the upper end of the well chamber 2 and the inner side wall of the well shaft 1.

[0027] The stabilizing device provided in this embodiment protects the wellbore 1, the upper end of the well chamber 2 and the base of the small circular well for groundwater sampling, strengthens the wellhead and the surrounding structure, is simple to install and easy to operate, supports and fixes the sampling wellhead, effectively improves the reinforcement effect of the sampling wellhead, and can ensure the stability of the sampling wellhead. The tube hoop 4 is hooped in the wellbore 1 and extends into the upper end of the well chamber 2 to fix and tighten, squeeze the inner wall, fix the inner wall, prevent the wellhead of the sampling well from collapsing, and avoid affecting the sampling work.

[0028] It is understandable that during the groundwater sampling process, even if it may be necessary to temporarily install heavy equipment on or around the wellhead (i.e., on the base), in the present application, the entire gravity of the equipment can be borne in part by the stabilizing device, and the stabilizing device strengthens the wellhead and surrounding structures, thereby making it less likely that the wellhead will be damaged during the sampling operation.

[0029] The portion of the tube hoop 4 that is hooped inside the wellbore 1 is a semicircular plate with a diameter equal to that of the wellbore 1 and the upper end of the well chamber 2, which fully supports the inner wall of the wellbore 1 and the upper end of the well chamber 2.

[0030] Example 2

[0031] This embodiment is based on the embodiment 1, and further optimizes and refines the structure of the base cover 3, specifically:

[0032] The base cover 3 includes a base portion 8 (with a cavity for accommodating the base) covering the base and a ground surface portion 9 extending from the lower end of the base portion 8 to the surrounding areas. The two are formed by bending, and the ground where the ground surface portion 9 is located is provided with a groove for accommodating the ground surface portion 9, so that after the base cover 3 is installed, the ground surface portion 9 is placed on the ground and does not protrude from the ground surface, and a clearance hole is opened in the middle of the base portion 8.

[0033] Example 3

[0034] This embodiment is based on the embodiment 2, and further optimizes and refines the structure of the base cover 3, specifically:

[0035] The base is a rectangular base, and correspondingly, the base cover 3 is also a rectangular cover. The upper surfaces of the base portion 8 and the ground surface portion 9 are respectively provided with anti-slip stripes, and the anti-slip stripes are raised herringbone stripes. Sometimes, the operator may need to step on the base cover 3 to perform sampling operations to avoid slipping and falling.

[0036] Example 4

[0037] This embodiment is based on the embodiment 3, and further optimizes and refines the structure of the stabilizing device, specifically:

[0038] The small circular wellhead stabilizing device described in the present embodiment has a right-angle plate 10 on its flange plate 6, and limiting holes are respectively provided on the opposite sides of the wellbore 1 where the tube hoop 4 is installed (the said making way holes may be reserved when casting the wellbore 1, or may be directly drilled on the wellbore 1 afterwards), and a second bolt assembly 11 is connected between the right-angle plate 10 and the tube hoop 4, and the second bolt assembly 11 slides and is inserted into the limiting hole, and the tube hoop 4 is limited on the wellbore 1 by the second bolt assembly 11 so that it does not detach, and the second bolt assembly 11 can also strengthen the structural strength of the right-angle plate 10, so that it has higher deformation resistance when being tightened by the first bolt assembly 7.

[0039] Example 5

[0040] This embodiment is based on the embodiment 4, and further optimizes and refines the structure of the stabilizing device, specifically:

[0041] The small circular wellhead stabilizing device described in this embodiment has a first bolt assembly 7 whose one end is connected to the lever support 5 and the other end is connected to the right-angle plate 10. The barrel hoop 4 is connected and tightened to the lever support 5 by means of the right-angle plate 10 and the first bolt assembly 7.

[0042] It is understandable that the tube hoop 4 can also be directly tightened on the wellbore 1 after passing through the wellbore 1 using the first bolt assembly 7, but this method may not only damage the outer wall of the wellbore 1, but also increase the burden on the wall of the wellbore 1, and the tensioning strength is limited; in addition, a layer of protective plate can be wrapped around the outside of the wellbore 1, and then locking bolts can be passed between the tube hoop 4, the wellbore 1 and the protective plate to tighten the tube hoop 4, but this method will still increase the burden on the wall of the wellbore 1. Of course, the above two methods can be used as simple alternatives. In the connection structure provided in this embodiment, after the tube hoop 4 is tightened, the wellbore 1 and the upper ends of the well chamber 2 are jointly stressed, and the other end is stressed by the support 5, and the overall structure is more stable and reliable.

[0043] Example 6

[0044] This embodiment is based on the embodiment 5, and further optimizes and refines the structure of the lever support 5, specifically:

[0045] The lever support 5 includes a support plate 12, and the support plate 12 is fixedly connected to the base cover 3. It can be understood that the support plate 12 can be a rectangular plate, which is then welded to the base portion 8 of the base cover 3, or it can be an L-shaped plate, which is then welded or bolted to the base portion 8 of the base cover 3, and the first bolt assembly 7 is connected to the support plate 12.

[0046] Example 7

[0047] This embodiment is based on the embodiment 6, and further optimizes and refines the structure of the lever support 5, specifically:

[0048] The lever support 5 further includes a rib plate 13 . A rib plate 13 is respectively arranged on both sides of the support plate 12 . The rib plates 13 are respectively fixedly connected to the base cover 3 and the support plate 12 . The structural strength of the support plate 12 is enhanced by the rib plates 13 .

[0049] Example 8

[0050] This embodiment is based on the embodiment 7, and further optimizes and refines the structure of the stabilizing device, specifically:

[0051] The wellhead stabilizing device of the small circular well described in this embodiment also includes a well cover 14 that blocks the upper end of the wellbore 1. The wellhead of the sampling well can be blocked by the well cover 14 to prevent debris from falling into the sampling well when idle and affecting the later sampling. One end of the well cover 14 is hinged to the right angle plate 10 on one of the tube hoops 4 (the hinge can be made by existing technical means, which will not be described in detail here). After the well cover 14 is opened 180°, it rests on the support plate 12.

[0052] In this embodiment, a accommodating cavity 15 is provided in the middle of the manhole cover 14, and a plurality of criss-cross partitions are provided in the accommodating cavity 15. The partitions divide the accommodating cavity 15 into a plurality of grids for accommodating water sample containers. When the manhole cover 14 is opened, all the grids will be exposed for temporary storage of sample containers, and the taken water samples are easy to store, which is convenient for inspection personnel to take samples.

[0053] The installation process of the present application is as follows: after the small circular well is drilled, the base and the wellbore 1 are cast, and during the casting of the wellbore 1, the limiting holes are reserved, and then the base cover 3 (the base cover 3 is pre-installed with the lever support 5, etc.) and the tube hoop 4 are installed in sequence, and then the second bolt assembly 11 and the first bolt assembly 7 are installed in turn, and after tightening the tube hoop 4, the well cover 14 can be installed.

[0054] In addition, in the description of the present invention, unless otherwise specified, the terms "multiple", "multiple roots", "multiple groups" mean two or more than two, and "several", "several roots", "several groups" mean one or more than one. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0055] The specific implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A small circular wellhead stabilizing device for geological exploration, installed in a small circular well for groundwater sampling, the small circular well comprising a wellbore extending out of the ground and a well chamber located under the ground, the wellbore is connected to the well chamber, and a base is cast around the lower end of the wellbore, characterized in that: The stabilizing device protects the wellbore, the upper end of the well chamber and the base, and the stabilizing device includes a base cover, a barrel hoop and a lever support; The base cover is buckled on the base, and a clearance hole is arranged in the middle of the base cover. The wellbore passes through the base cover through the clearance hole. Leverage supports are respectively arranged on the base cover on the opposite side of the wellbore. The two tube hoops are clamped in the wellbore and extend into the upper end of the well chamber. A flange plate is arranged on the upper end of the tube hoop, and the flange plate is against the upper end surface of the wellbore. The tube hoop and the leverage support are arranged along a straight line. A first bolt assembly is arranged between the tube hoop and the leverage support on the same side of the wellbore. The tube hoop is tightened with the leverage support through the first bolt assembly to be tightly attached to the upper end of the well chamber and the inner wall of the wellbore.

2. The small circular wellhead stabilizing device according to claim 1 is characterized in that: The base cover comprises a base part covering the base and a ground surface part extending from the lower end of the base part to the surrounding areas, the ground where the ground surface part is located is provided with a groove for receiving the ground surface part, and a yield hole is opened in the middle of the base part.

3. The small circular wellhead stabilizing device according to claim 2 is characterized in that: The base is a rectangular base, and the upper surfaces of the base part and the ground surface part are respectively provided with anti-slip stripes, and the anti-slip stripes are raised herringbone stripes.

4. The small circular wellhead stabilizing device according to any one of claims 1 to 3, characterized in that: The flange plate is provided with a right-angle plate, and limiting holes are respectively provided on opposite sides of the wellbore mounting sleeve. A second bolt assembly is connected between the right-angle plate and the sleeve, and the second bolt assembly is slidably inserted into the limiting hole.

5. The small circular wellhead stabilizing device according to claim 4 is characterized in that: One end of the first bolt assembly is connected to the lever support, and the other end is connected to the right-angle plate. The tube hoop is connected and tightened with the lever support by means of the right-angle plate and the first bolt assembly.

6. The small circular wellhead stabilizing device according to claim 5 is characterized in that: The lever support comprises a support plate, the support plate is fixedly connected to the base cover, and the first bolt assembly is connected to the support plate.

7. The small circular wellhead stabilizing device according to claim 6 is characterized in that: The lever support further comprises a rib plate, and a rib plate is respectively arranged on both sides of the support plate, and the rib plates are respectively fixedly connected to the base cover and the support plate.

8. The small circular wellhead stabilizing device according to claim 7 is characterized in that: It also includes a manhole cover for covering the upper port of the wellbore, one end of which is hinged to a right-angle plate on one of the barrel hoops, and the manhole cover rests on a support plate after being opened 180 degrees.

9. The small circular wellhead stabilizing device according to claim 8, characterized in that: A receiving cavity is arranged in the middle of the manhole cover, and a plurality of crisscross partitions are arranged in the receiving cavity. The partitions divide the receiving cavity into a plurality of grids for accommodating water sample containers.

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