JP2014194127A - Hole inside cleaning bailer, and bailing work method using hole inside cleaning bailer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hole inside cleaning bailer and a bailing work method using this hole inside cleaning bailer, capable of preventing damage of a casing constructed in an excavated hole as a well or the like, in bailing work.SOLUTION: A hole inside cleaning bailer 10 cleans the inside of a casing 2 constructed in an excavated hole, and comprises a tubular bailer body 11 inserted inside the casing 2 and a cushioning member 20 for preventing the bailer body 11 from contacting with an inner surface of the casing 2, In the hole inside cleaning bailer 10, the cushioning member 20 is a member projected from an outer peripheral surface of the bailer body 11 and being softer than an inner surface of the casing 2.

Description

  The present invention relates to an in-hole cleaning baler and a baling operation method using the in-hole cleaning baler.

  Conventionally, a baling method (work) is known as a method (work) for cleaning the inside of a hole such as a well or a hot spring (see, for example, Patent Document 1). The baling method (work) is to push the baler, which is a pumping container, into the hole of the well, etc., take in the mud and sand with the mud from the check valve at the bottom of the baler, lift the baler and discharge the mud with the mud and sediment It is a method (work) to do.

  As shown in FIG. 9, the baler 100 used in the above-described baling operation has a handle 102 for suspension attached to one (upper part) of a metal tubular baler body 101 (for example, a steel pipe) and the other (lower part). The check valve 103 is attached. The baler 100 puts the baler body 101 into a casing 111 installed in a hole 110a excavated as a well 110, and moves the baler body 101 up and down in the vicinity of the bottom of the casing 111 to remove earth and sand in muddy water. It is taken up from the bottom opening 104 provided with the check valve 103 at the bottom of the baler body 101. Then, the check valve 103 is closed by pulling up the baler body 101 and the earth and sand accumulated in the casing 111 is discharged together with the muddy water.

JP 2004-353296 A

  However, the casing 111 installed in the hole 110a of the well 110 has a resin coating on its inner surface, or the casing 111 itself is molded of resin. Therefore, as shown in FIG. 9 (d), in the conventional baler 100, the baler body 101 may come into contact with the inner surface of the casing 111 and damage the inner surface coating of the casing 111 or the casing 111 itself during the baling operation. There was a problem that there was.

  SUMMARY OF THE INVENTION The present invention solves the above-described problems, and uses a hole cleaning washer that can prevent damage to a casing laid in a hole excavated as a well during a baling operation, and the hole cleaning baler. The purpose is to provide a baling work method.

  In order to solve the above problems, an in-hole cleaning baler according to claim 1 is an in-hole cleaning baler for cleaning the inside of a casing installed in an excavated hole, and is inserted into the casing. A tubular baler body, and a buffer member that prevents the baler body from contacting the inner surface of the casing, the buffer member protruding from the outer peripheral surface of the baler body, and more than the inner surface of the casing It is formed of a soft member.

  According to the above configuration, when the in-hole cleaning baler is inserted into the casing, the space between the baler body and the casing is buffered by the buffer member softer than the inner surface of the casing.

  An in-hole cleaning baler according to claim 2 is the in-hole cleaning baler according to claim 1, wherein the buffer member is formed of a resin annular member.

  According to the above configuration, when the in-hole cleaning baler is inserted into the casing, the space between the baler body and the casing is buffered by the resin cushioning member.

  Furthermore, an in-hole cleaning baler according to claim 3 is the in-hole cleaning baler according to claim 1 or 2, wherein the buffer member is formed of a brush-like member formed in an annular shape. .

  According to the above configuration, when the in-hole cleaning baler is inserted into the casing, the space between the baler body and the casing is buffered by the resin cushioning member, and the brush itself has a gap on the inner surface of the casing. The adhering earth and sand are captured, or the earth and sand are scraped off with a brush.

  Furthermore, the hole cleaning baler according to claim 4 is the hole cleaning baler according to any one of claims 1 to 3, wherein the buffer member is attached to and detached from the outer peripheral surface of the baler body. It is provided as possible. An in-hole cleaning baler according to claim 5 is the in-hole cleaning baler according to claim 4, wherein the buffer member is a separable member.

  According to the above configuration, when the buffer member is worn or damaged, the buffer member can be easily replaced.

  Further, an in-hole cleaning baler according to claim 6 is the in-hole cleaning baler according to any one of claims 1 to 5, wherein the buffer member is provided at an upper end portion and a lower end portion of the baler body. It is provided.

  According to the above configuration, when the hole cleaning baler is pushed into the casing and pulled up from the casing, the space between the baler body and the casing is reliably buffered by the buffer member.

  Furthermore, the baling work method which concerns on Claim 7 is a baling work method which performs baling work using the baler | basket for hole cleaning of any one of Claims 1-6.

  According to the above configuration, the baling operation can be performed in a state where the space between the baler body and the casing is buffered by the buffer member softer than the inner surface of the casing.

  As effects of the present invention, the following effects can be obtained. That is, according to the in-hole cleaning baler, since the space between the baler body and the casing is reliably buffered by the buffer member, the baler does not directly contact the casing. Therefore, there is no possibility that the baler will damage the inner surface coating of the casing or the casing itself during the baling operation.

(A) is a side view of an in-hole cleaning baler according to Embodiment 1 of the present invention, and (b) is a case where the in-hole cleaning baler according to Embodiment 1 of the present invention is inserted into a well casing. FIG. It is side surface sectional drawing of the buffer member vicinity of the hole cleaning baler which concerns on Embodiment 1 of this invention. It is sectional drawing of the baler upper end vicinity at the time of inserting the hole cleaning baler which concerns on Embodiment 1 of this invention in the casing of a well. (A) is side surface sectional drawing of the buffer member which concerns on another embodiment, (b) is a perspective view of the brush part of the buffer member which concerns on another embodiment. It is a side view of the hole cleaning baler which concerns on Embodiment 2 of this invention. It is side surface sectional drawing of the buffer member vicinity of the baler | bowl for hole cleaning which concerns on Embodiment 2 of this invention. (A) is a top view of the solid member in the buffer member of the hole cleaning baler according to Embodiment 2 of the present invention, (b) is a cross-sectional view taken along the line AA in (a), and (c) is the same. It is a side view of the division | segmentation part vicinity of a solid member. It is sectional drawing of the baler upper end vicinity at the time of inserting the hole cleaning baler which concerns on Embodiment 2 of this invention in the casing of a well. (A) is a plan view of a conventional in-hole cleaning baler, (b) is a side sectional view of a conventional in-hole cleaning baler, (c) is a bottom view of a conventional in-hole cleaning baler, d) is a cross-sectional view when a conventional hole cleaning baler is inserted into a well casing.

  First, an outline of the baler 10 according to the first embodiment of the present invention will be described.

  As shown in FIG. 1B, the baler 10 (an example of “in-hole cleaning baler”) cleans the inside of the casing 2 installed in the hole 1 a excavated as the well 1. Here, the casing 2 cleaned by the baler 10 is a tubular casing having a slightly smaller diameter than the hole 1a of the well 1, and a resin coating film (for example, an epoxy resin coating film) is applied to the inner peripheral surface 2a thereof. Alternatively, the casing 2 itself is molded from resin.

  The baler 10 is inserted into the casing 2, moved up and down near the bottom of the casing 2, and then pulled up from the casing 2 to clean the inside of the casing 2. Specifically, when the baler 10 is inserted into the casing 2, a later-described check valve 13 provided at the bottom of the baler 10 is opened. Then, by moving the baler 10 up and down in the vicinity of the bottom of the casing 2, the earth and sand are rolled up, and the rolled up earth and sand are brought into the inside of the baler 10 together with the muddy water from the bottom opening 14 where the check valve 13 is provided. It is captured. Furthermore, the check valve 13 is closed by pulling up the baler 10 from the casing 2 in this state, and the taken-in earth and sand are held inside the baler 10. By operating the baler 10 in this way, the earth and sand inside the casing 2 is discharged together with the muddy water.

  Next, the configuration of the baler 10 will be described.

  As shown in FIG. 1A, a baler 10 includes a baler body 11, a suspension handle 12 for suspending the baler body 11 from above, and a check valve 13 for taking earth and sand from the lower part of the baler 10. The buffer member 20 is configured to prevent the baler body 11 from contacting the inner peripheral surface of the casing 2.

  The baler body 11 is a metal tubular member (for example, a steel pipe) having a bottom. The inside of the baler body 11 is formed in a hollow shape, and a bottom surface opening 14 is formed at the bottom of the baler body 11 so as to be able to take in dirt and the like together with muddy water.

  The suspension handle 12 is a member that is curved so as to protrude upward (substantially inverted U-shaped), and is provided on the top of the baler body 11. The baler 10 can be hung by attaching a hanger (for example, a jackle) to the hanger handle 12.

  The check valve 13 is a valve that is provided at the lower part (bottom part) of the baler body 11 and opens and closes the bottom opening 14 of the baler body 11. When the baler 10 is inserted into the casing 2, the check valve 13 opens by receiving upward pressure from the muddy water in the casing 2. On the other hand, when the baler 10 is pulled up from the inside of the casing 2, the check valve 13 is closed by receiving downward pressure from muddy water or the like inside the baler body 11.

  The buffer member 20 is an annular brush projecting from the outer peripheral surface of the baler body 11 (an example of “resin-made annular member” and “brush-like member”). As shown in FIG. 2, the buffer member 20 includes a resin bristle material 21 and fixing rings 22 and 22 for securing the bristle material 21.

  The bristle material 21 is a member in which a plurality of linear, brush-like, or bristle members are gathered to form an annular shape, and a softer material than the resin portion of the inner peripheral surface 2a of the casing 2 is used. The bristle member 21 has an inner diameter substantially the same as the outer diameter of the baler body 11, and is detachably attached to the baler body 11 by being inserted from one end of the baler body 11. Further, the bristle material 21 is fixed to the outer peripheral surface of the baler body 11 by sandwiching both end portions (upper end portion and lower end portion) between the fixing rings 22 and 22. In addition, the bristle material 21 is good also as a structure which can be diameter-expanded by providing a division part in the one place or multiple places.

  The fixing ring 22 is a steel annular member protruding from the outer peripheral surface of the baler body 11. As shown in FIG. 2, the fixing ring 22 has a protruding portion 22 a at the protruding base end portion, and the protruding portion 22 a is fitted into a groove portion 11 a provided in the baler body 11, thereby Removably attached to the surface. Further, the fixing ring 22 has a structure capable of expanding the diameter by providing a dividing portion at one or a plurality of locations. And the clamping part 22b for clamping the bristle material 21 is formed by arrange | positioning the fixing ring 22 in the up-down direction of the baler main body 11 at predetermined intervals. Further, the fixing ring 22 protrudes such that the protruding tip portion is on the inner side of the protruding tip portion of the bristle material 21 (the hair tip portion of the bristle material 21). The fixing ring 22 is detachably attached to the baler body 11, but is not limited thereto, and may be fixed by welding as necessary.

  In this way, by attaching the buffer member 20 to the outer peripheral surface of the baler body 11, when the baler body 11 is inserted into the casing 2, at least bristle is present between the baler body 11 and the inner peripheral surface 2a of the casing 2. A gap corresponding to the protrusion of the material 21 is generated. Therefore, as shown in FIG. 3, the baler body 11 does not directly contact the inner peripheral surface 2 a of the casing 2 even if the buffer member 20 contacts the inner peripheral surface 2 a of the casing 2. Moreover, since the bristle material 21 of the buffer member 20 is made of resin, even if it contacts the inner peripheral surface 2a of the casing 2, the inner surface coating of the casing 2 or the casing 2 itself is not damaged. Furthermore, since the buffer member 20 is a bristle material 21 in which a portion in contact with the inner peripheral surface 2a of the casing 2 is a linear, brush-like or bristle member, the inner peripheral surface 2a of the casing 2 When contact is made, earth and sand adhering to the inner peripheral surface 2 a of the casing 2 are captured in the gap of the bristle material 21 itself, or the earth and sand are scraped off by the bristle material 21.

  Further, as shown in FIG. 1, the buffer member 20 is provided at the upper end portion and the lower end portion of the baler body 11. For this reason, particularly when the baler body 11 is pushed into the casing 2 and pulled up from the casing 2, one end (upper end or lower end) of the baler body 11 is close to the inner peripheral surface 2 a of the casing 2. Even in this case, the buffer member 20 reliably buffers the space between the baler body 11 and the casing 2.

  Moreover, you may comprise the buffer member 20 as follows.

  As shown in FIG. 4, the buffer member 25 is an annular resin brush that protrudes from the outer peripheral surface of the baler body 11, similarly to the buffer member 20. The buffer member 25 includes a plurality of (three in FIG. 4A) brush portions 26 and fixing rings 22 and 22 that fix the brush portions 26.

  The brush portion 26 is connected to the outer peripheral surface of the baler body 11, and both end portions (upper end portion and lower end portion) of the connected brush portion 26 are sandwiched between the fixing rings 22, so that the outer peripheral surface of the baler main body 11. Removably attached to. In addition, the brush portion 26 includes a bristle material 27 and a bristle material fixing ring 28.

  The bristle material 27 is a member in which a plurality of linear, brush-like, or bristle members are gathered to form an annular shape, and a material softer than the resin portion of the inner peripheral surface 2a of the casing 2 is used. The bristle material 27 is provided with a stainless steel core wire 27a at the protruding base end (the base portion of the bristle material 27), and the bristle material 27 is attached to the core wire 27a. The bristle material 27 is fitted and fixed to the bristle material fixing ring 28 by inserting the core wire 27 a into the bristle material fixing ring 28. Further, the bristle material 27 may have a structure capable of expanding the diameter by providing a divided portion at one or a plurality of locations.

  The bristle material fixing ring 28 is a steel annular member protruding from the outer peripheral surface of the baler body 11. The bristle fixing ring 28 is provided with a clamping portion 28A for clamping the bristle 27. The sandwiching portion 28A is a substantially U-shaped portion in cross-sectional view composed of two side surface portions 28a and 28a and one intermediate portion 28b. The holding portion 28A is provided such that its side surface portions 28a and 28a are elastically deformable, and spreads outward when the core wire 27a of the bristle material 27 is inserted, and receives the core wire 27a. To do. Thereby, the bristle material fixing ring 28 fixes the bristle material 27 with the clamping portion 28A. In addition, the bristle material fixing ring 28 may have a structure capable of expanding the diameter by providing a divided portion in a part thereof.

  Next, a baling work method using the baler 10 according to the first embodiment will be described.

  As shown in FIG.1 (b), the wire 7 is first connected to the handle 12 for suspension of the baler 10 via a lifting tool (not shown). Then, the baler 10 is suspended using a winch or the like (not shown) and lowered toward the bottom of the casing 2 of the well 1. At this time, the check valve 13 of the baler 10 is opened by receiving pressure from the muddy water in the casing 2. When the baler 10 is lowered to the vicinity of the bottom of the casing 2, the baler 10 is further moved up and down to wind up the earth and sand near the bottom of the casing 2. And the earth and sand wound up by the vertical movement of this baler 10 are taken in from the bottom face opening part 14 of the baler main body 11 with muddy water. When earth and sand etc. are taken into the inside of the baler main body 11 with muddy water, the baler 10 will be pulled out of the casing 2 using a winch etc. (not shown). At this time, the check valve 13 of the baler 10 is closed by receiving pressure from the inside of the baler body 11 by muddy water or the like. For this reason, the baler 10 is pulled up to the outside of the casing 2 while retaining dirt and the like together with the muddy water in the baler body 11.

  Further, the baler 10 is suspended by using a winch or the like (not shown) to the vicinity of the depth of the screen (a perforated pipe for taking aquifer groundwater into the casing 2, not shown). And the flow of water is generated in the casing 2 by moving the baler 10 up and down using a winch or the like (not shown). This flow of water removes the clogging of the screen.

  Next, the baler 50 according to the second embodiment will be described. In addition, about the structure same as the baler 10 which concerns on 1st Embodiment, a code | symbol is made the same and the description is abbreviate | omitted.

  Compared with the baler 10 which concerns on 1st Embodiment, the baler 50 which concerns on 2nd Embodiment mainly differs in the structure of the buffer members 60 * 60.

  As shown in FIGS. 5 and 6, the buffer members 60 and 60 are annular solid members that protrude from the outer peripheral surface of the baler body 11. As shown in FIG. 6, the buffer members 60 and 60 are made of resin, and are composed of a solid member 61 that is softer than the resin portion of the inner peripheral surface 2 a of the casing 2 and fixing rings 62 and 62 that fix the solid member 61. Composed.

  The solid member 61 is a member that is inclined from both end portions (upper end portion and lower end portion) toward the central portion, and the central portion is processed flat. The solid member 61 has a protruding base end surface that abuts on the outer peripheral surface of the baler body 11, and its both end portions (upper end portion and lower end portion) are sandwiched between the clamping portions 62 </ b> A of the fixing rings 62 and 62. 11 is detachably attached to the outer peripheral surface.

  As shown in FIG. 7, the solid member 61 is divided into one or a plurality of portions, and is formed into an annular shape by connecting the ends of the divided portions with a connecting member 70 such as a bolt. The Specifically, as shown in FIG. 7 (c), an introduction hole 61a for introducing the connecting member 70 into the inside is provided on the side portion of the one end portion 61A of the divided portion of the solid member 61, and one end portion thereof. A through hole 61b through which the connecting member 70 is inserted is provided inside 61A. Further, a screw hole 61 c for screwing the connecting member 70 is provided inside the other end portion 61 </ b> B of the divided portion of the solid member 61. Then, the connecting member 70 is introduced from the introduction hole 61a, and the connecting member 70 is screwed into the through hole 61b and the screw hole 61c in a state where the one end portion 61A and the other end portion 61B of the divided portion of the solid member 61 are connected. The ends of the divided parts are connected to each other.

  The fixing rings 62 and 62 are steel annular members protruding from the outer peripheral surface of the baler body 11. As shown in FIGS. 5 and 6, the fixing rings 62 and 62 are fixed to the outer peripheral surface of the baler body 11 by welding. Then, by arranging the fixing rings 62 and 62 at a predetermined interval in the vertical direction of the baler body 11, a clamping part 62 </ b> A for clamping the solid member 61 is formed. In addition, the fixing rings 62 and 62 protrude so that the protruding front end portion is inside the protruding front end portion of the solid member 61. The fixing rings 62 and 62 are fixed to the baler body 11 by welding. However, the fixing rings 62 and 62 are not limited to this, and similarly to the fixing ring 22 (see FIG. 2), a protruding portion is provided at the protruding base end portion. It may be configured to be detachably attached to the baler body 11 by providing it and fitting the protrusion into a groove provided in the baler body 11. Further, the fixing rings 62 and 62 may have a structure capable of expanding the diameter by providing a split portion in a part thereof, similarly to the fixing ring 22.

  Thus, by attaching the buffer members 60 and 60 to the outer peripheral surface of the baler body 11, when the baler body 11 is inserted into the casing 2, the buffer member 60 comes into contact with the inner peripheral surface 2a of the casing 2. Even if it exists, the clearance gap for the protrusion of the solid member 61 will arise between the baler main body 11 and the internal peripheral surface of the casing 2 at least. Therefore, as shown in FIG. 8, the baler body 11 does not directly contact the inner peripheral surface 2 a of the casing 2 even though the buffer members 60 and 60 may contact the inner peripheral surface 2 a of the casing 2. Further, since the solid member 61 of the buffer members 60, 60 is made of a softer resin than the inner peripheral surface 2a of the casing 2, even if it contacts the inner peripheral surface of the casing 2, the inner surface coating of the casing 2 or the casing 2 It does not damage itself. Thereby, the inner surface coating of the casing 2 or the casing 2 itself is maintained in a good state without being damaged.

2 Casing 10, 50 Baler 11 Baler body 20, 25, 60 Buffer member

Claims (7)

A baler for cleaning an in-hole, which cleans the inside of a casing installed in an excavated hole,
A tubular baler body inserted into the casing;
A buffer member for preventing the baler body from contacting the inner surface of the casing;
With
The buffer member projects from the outer peripheral surface of the baler body and is a softer member than the inner surface of the casing. The baler for cleaning holes in holes according to claim 1, wherein the buffer member is an annular member made of resin. The baler for cleaning a hole according to claim 1 or 2, wherein the buffer member is a brush-like member formed in an annular shape. The in-hole cleaning baler according to any one of claims 1 to 3, wherein the buffer member is detachably attached to an outer peripheral surface of the baler body. The baler for cleaning holes according to claim 4, wherein the buffer member is a separable member. The said buffer member is provided in the upper end part and lower end part of the said baler main body. The hole cleaning baler of any one of Claims 1-5 characterized by the above-mentioned.   A baling operation method using the hole cleaning baler according to any one of claims 1 to 6.

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