CN215369825U - Improved rock core tube sand taking equipment - Google Patents

Abstract

The utility model discloses improved rock core pipe sand taking equipment, and relates to the technical field of drilling sampling equipment. The sand taking pipe comprises a sand taking pipe, wherein one end of the sand taking pipe is provided with an acting tooth, the other end of the sand taking pipe is provided with a threaded joint, the inner wall of the middle position of the sand taking pipe is a regular polygon, each wall surface of the inner wall at the position is provided with a hinge, and one side of each hinge is inserted with a plurality of screws for fixedly installing the hinge inside the sand taking pipe. According to the sand sampling device, the regular polygon inner wall is arranged at the middle section of the sand sampling pipe, and the plurality of support plates which can be spliced with each other are hinged on the regular polygon inner wall, so that the support plates are opened under the thrust action when the device is used for sampling, sandy soil is intercepted, the defects that a sampled sand sample is incomplete, large in disturbance, easy to fall off of the sample and the like are overcome, and parameters such as sand layer composition, sand sample gradation, sand shear strength index and the like can be better known.

Description

Improved rock core tube sand taking equipment

Technical Field

The utility model relates to the technical field of drilling sampling equipment, in particular to improved rock core pipe sand taking equipment.

Background

At present, the sand sampling mode adopted in the engineering drilling industry is mainly direct sampling (sampling by impacting a rotary drilling core bit or an undisturbed sand extractor) and intermittent sampling or split sampling by a standard penetration device in the drilling process. In the direct sampling mode, the conditions that a deep hole sand sample is easy to leak, the cementation is poor, the sampling effect in a loose sand layer is poor and the like usually occur in the actual drilling process of the impact rotary drilling rock core drill bit sampling, so that the screening test data is inaccurate, and the naming of the sand layer and the magnitude of the mechanical parameter value of the sand layer in the report are influenced. If a single-action double-pipe drilling tool and vegetable gum are adopted for sampling, the procedures of assembling the drilling tool and preparing the drilling fluid are complex and time-consuming, and can be carried out only by auxiliary equipment such as a slurry pump, a stirrer and the like, so that the overall cost is high; need assemble the drilling tool of changing complicacy, consuming time hammering sample at the scene when using the fraction sample, go into the difficulty in closely knit sand bed, normal position test hole quantity is less than the thief hole quantity moreover, consequently can't the universal application in adopting sand sample work.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problems in the background art, the utility model provides an improved core barrel sand extracting device.

The utility model specifically adopts the following technical scheme for realizing the purpose:

the utility model provides a sand equipment is got to modified rock core pipe, is including getting the sand pipe, the one end of getting the sand pipe is seted up and is acted on tooth and its other end and be provided with threaded joint, the inner wall of getting sand pipe middle part position sets up to regular polygon, all is provided with the hinge on every wall of this position inner wall, every one side of hinge is all inserted and is equipped with a plurality of and is used for getting hinge fixed mounting at the inside screw of sand pipe, every the equal fixed mounting of opposite side of hinge has and follows the hinge pivoted can carry out closed extension board, a plurality of mutually noninterfere, every between the extension board still fixed mounting has the dog that is used for the conflict to correspond the extension board on the hinge.

Furthermore, get sand pipe and include push pipe and effect pipe, screwed joint sets up the top at the push pipe, the effect tooth is seted up in the bottom of effect pipe, threaded connection has the connecting pipe between push pipe and the effect pipe, and regular polygon inner wall sets up the middle part at the connecting pipe.

Furthermore, rubber pads are arranged on the parts of the two ends of the connecting pipe, which are used for being connected with the top pipe and the action pipe.

Furthermore, the bottom of the connecting pipe is provided with an internal thread, and the internal thread is connected with a drainage ring for protecting the hinge structure in a threaded manner.

Furthermore, the bottom of the drainage ring is provided with a plurality of operation openings, and the top of each operation opening is provided with a corresponding inclined plane.

Further, the periphery side below the diversion ring is provided with a convex edge which is used for being attached to the inner wall of the action pipe.

Further, the diameter of the inscribed circle of regular polygon inner wall cross-section place is less than the internal diameter of getting the sand pipe, has all seted up the spout on each side of regular polygon inner wall bottom, every the hinge is used for installing and all slides the setting in the spout that corresponds at the part of getting the sand pipe inner wall, and this position the bottom fixed mounting of hinge has the blend stop that is used for contradicting at the spout tip, corresponding through-hole has all been seted up for the part of getting the threaded hole that the sand pipe inner wall was seted up to the hinge.

The utility model has the following beneficial effects: according to the utility model, the regular polygon inner wall is arranged at the middle section of the sand sampling pipe, and the plurality of support plates which can be spliced with each other are hinged on the regular polygon inner wall, so that the support plates are opened under the thrust action when the equipment is used for sampling, and the support plates are extruded after the sampling work is completed to seal the end part of the sand sampling pipe, so that the equipment avoids the defects of incomplete sampling, large disturbance, easy falling of samples and the like, and can better understand the parameters of sand layer composition, sand sample grading, shear strength index and the like.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is a front view of the structure of the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a cross-sectional view taken in the direction B-B of FIG. 2 in accordance with the present invention;

reference numerals: 1. taking a sand pipe; 101. jacking pipes; 102. an action tube; 103. a connecting pipe; 104. a rubber pad; 2. a hinge; 3. a screw; 4. a support plate; 5. a stopper; 6. blocking strips; 7. a drainage ring; 8. and an operation port.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-4, an improved rock core tube sand sampling device provided by an embodiment of the present invention is provided, wherein a regular polygonal inner wall is disposed at a middle position of a sand sampling tube 1, a plurality of support plates 4 capable of being spliced with each other are hinged on the regular polygonal inner wall, so that the support plates 4 are opened under the thrust action when the device is used for sampling, and the support plates 4 are extruded to seal the sand sampling tube 1 after the sampling operation is completed, thereby avoiding the defects of incomplete sampling sand sample, large disturbance, easy falling of the sample, etc., better understanding parameters such as sand layer composition, sand sample gradation, shear strength index of sand, etc., and in order to realize the structural function of the device, the device comprises the sand sampling tube 1, specifically, wherein one end of the sand sampling tube 1 is provided with an active tooth and the other end thereof is provided with a threaded joint to ensure the normal structural function of the device, at the moment, in order to ensure that the sand sampling is prevented from leaking from the bottom of the sand sampling pipe 1, the inner wall of the middle position of the sand sampling pipe 1 is arranged to be a regular polygon, each wall surface of the inner wall of the position is provided with a hinge 2, concretely, one side of each hinge 2 is inserted with a plurality of screws 3 for fixedly installing the hinge 2 in the sand sampling pipe 1 to fix the hinge 2, the other side of each hinge 2 is fixedly provided with a support plate 4 which rotates along with the hinge 2 and can close the pipeline of the sand sampling pipe 1, the shape and the structural size of the support plate 4 are constrained by the shape of the regular polygon, the support plates 4 are not interfered with each other, and the support plates 4 can be mutually closed to form a sealing plate for sealing the sand sampling pipe 1 when the equipment has the lifting tendency, so as to ensure the good sand sampling effect of the equipment, in order to prevent sand from leaking out of the bottom of the equipment due to the fact that the offset distance of the support plates 4 is excessive, a stop 5 for abutting against the corresponding support plate 4 is fixedly arranged on each hinge 2, and therefore each support plate 4 can be stabilized in a horizontal position.

As shown in fig. 1 and 3, in some embodiments, in order to facilitate installation of the hinge 2 portion, the sand taking pipe 1 is arranged to include a top pipe 101 and an acting pipe 102, a screw joint at this time is arranged above the top pipe 101, an acting tooth is arranged at the bottom of the acting pipe 102, a connecting pipe 103 is connected between the top pipe 101 and the acting pipe 102 in a threaded manner, a regular polygon inner wall required by the equipment is arranged in the middle of the connecting pipe 103, the connecting pipe 103 is screwed between the top pipe 101 and the acting pipe 102, the operation length of the hinge 2 when the hinge 2 is installed can be effectively shortened while the normal use effect of the equipment is ensured, and the hinge is more beneficial to corresponding installation and replacement and overhaul work of workers.

As shown in fig. 1 and fig. 3, in some embodiments, in order to ensure a good sealing contact effect between the connection pipe 103 and the top pipe 101, rubber pads 104 are disposed at portions of two ends of the connection pipe 103, where the connection pipe is connected to the top pipe 101 and the action pipe 102, so that the tight fit and the pressing contact effect of the rubber pads 104 can ensure a good sealing effect of the device, reduce the possibility of self-rotation of the connection pipe 103, the action pipe 102 and the top pipe 101, and effectively ensure a certain operation safety of the device.

As shown in fig. 3, in some embodiments, in order to prevent the sampling device from being in a downward movement process, the protruding structure such as the hinge 2 is hard to move forward due to the resistance of silt, and the protruding structure is easy to damage a connection part of the device when moving forward forcibly, for this reason, an internal thread is provided at the bottom of the connection pipe 103, specifically, a drainage ring 7 for protecting the structure of the hinge 2 is screwed onto the internal thread at this position (the structure of the drainage ring 7 can be shown in fig. 3), and when the drainage ring 7 works, corresponding silt can flow into the inside of the sand taking pipe 1 through the guide port, which is more beneficial to the normal use of the device.

As shown in fig. 3, in some embodiments, in order to ensure a good drainage effect of the drainage ring 7, the drainage opening at the bottom of the drainage ring 7 should be set to be a corresponding arc surface, at this time, in consideration of facilitating installation of the drainage ring 7 in the connecting pipe 103, here, a plurality of operation openings 8 (which are inserted through additional auxiliary work to rotate the drainage ring 7 in the corresponding operation openings 8) can be formed at the bottom of the drainage ring 7, and at this time, in order to prevent the tops of the operation openings 8 from being inconsistent with silt, the tops of each operation opening 8 are formed to be corresponding inclined surfaces.

As shown in fig. 3, in order to prevent silt from entering the gap between the drainage ring 7 and the action pipe 102, and thus to prevent silt from blocking the drainage ring 7 and making it difficult to rotate the drainage ring 7, a flange for fitting the inner wall of the action pipe 102 is provided on the outer peripheral side below the drainage ring 7.

As shown in fig. 3, in some embodiments, in order to ensure a good installation position of the hinge 2, a diameter of an inscribed circle where a cross section of the regular polygon inner wall is located is smaller than an inner diameter of the sand taking pipe 1, specifically, a sliding groove is formed in each side face of the bottom of the regular polygon inner wall, each hinge 2 is arranged to be installed on a part of the inner wall of the sand taking pipe 1 and is arranged in the corresponding sliding groove in a sliding manner, a barrier strip 6 for abutting against the end part of the sliding groove is fixedly installed at the bottom of the hinge 2 at the position, corresponding through holes are formed in the hinge 2 relative to the part of the threaded hole formed in the inner wall of the sand taking pipe 1, when the position of the hinge 2 needs to be fixed, the barrier strip 6 arranged at the bottom of the hinge 2 can abut against one side of the sliding groove, and at the time, a good fastening position of the device can be ensured by connecting corresponding screws 3.

Claims (7)

1. The utility model provides a sand equipment is got to modified rock core pipe, its characterized in that, is including getting sand pipe (1), the one end of getting sand pipe (1) is seted up and is had the effect tooth and its other end to be provided with screwed joint, the inner wall of getting sand pipe (1) middle part position sets up to regular polygon, all is provided with hinge (2) on every wall of this position inner wall, every one side of hinge (2) is all inserted and is equipped with a plurality of and is used for getting hinge (2) fixed mounting screw (3) inside getting sand pipe (1), every the equal fixed mounting of opposite side of hinge (2) has to follow hinge (2) pivoted and can carry out closed extension board (4), a plurality of mutually noninterfere between extension board (4), every go back fixed mounting on hinge (2) and be used for contradicting dog (5) that correspond extension board (4).

2. An improved core barrel sand extraction device according to claim 1, wherein the sand extraction pipe (1) comprises a top pipe (101) and an action pipe (102), the threaded joint is arranged above the top pipe (101), the action teeth are arranged at the bottom of the action pipe (102), a connecting pipe (103) is connected between the top pipe (101) and the action pipe (102) in a threaded manner, and the inner wall of the regular polygon is arranged in the middle of the connecting pipe (103).

3. An improved core barrel sand extraction equipment as claimed in claim 2, wherein the parts of the connecting pipe (103) where the top pipe (101) and the action pipe (102) meet are provided with rubber pads (104).

4. An improved core barrel core extraction device according to claim 2, characterized in that the bottom of the connecting pipe (103) is provided with an internal thread, and the internal thread is connected with a diversion ring (7) for protecting the structure of the hinge (2) in a threaded manner.

5. An improved core barrel core extracting device according to claim 4, wherein the bottom of the diversion ring (7) is provided with a plurality of operation openings (8), and the top of each operation opening (8) is provided with a corresponding inclined surface.

6. An improved core barrel core extracting device according to claim 4, characterized in that the peripheral side below the diversion ring (7) is provided with a flange for fitting with the inner wall of the action pipe (102).

7. The improved core barrel sand taking device as recited in claim 1, wherein the diameter of an inscribed circle of the cross section of the inner wall of the regular polygon is smaller than the inner diameter of the sand taking pipe (1), each side surface of the bottom of the inner wall of the regular polygon is provided with a sliding groove, the part of each hinge (2) for being mounted on the inner wall of the sand taking pipe (1) is arranged in the corresponding sliding groove in a sliding manner, a stop strip (6) for abutting against the end part of the sliding groove is fixedly mounted at the bottom of the hinge (2), and the hinge (2) is provided with a corresponding through hole relative to the part of the inner wall of the sand taking pipe (1) provided with the threaded hole.

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