CN214334323U

CN214334323U - Sampling tube assembly for river sediment sampler

Info

Publication number: CN214334323U
Application number: CN202023254820.3U
Authority: CN
Inventors: 余志刚; 王凯泓; 丁金伟; 李红立
Original assignee: Guangzhou Daozhang Engineering Technology Co ltd
Current assignee: Guangzhou Daozhang Engineering Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-10-01
Anticipated expiration: 2030-12-29

Abstract

The utility model belongs to the technical field of the survey type of meter building survey, more specifically relates to a sample tube subassembly for river course bottom sampler. Comprises a coring inner pipe, a coring outer pipe, a water stop valve, a first connecting pipe and a second connecting pipe; one end of the coring inner pipe is connected with the water inlet end of the water stop valve, and the water outlet end of the water stop valve is connected with the second connecting piece; the coring outer pipe is sleeved outside the coring inner pipe, one end of the coring outer pipe is connected with one end of a first connecting pipe, the second connecting pipe is arranged in the first connecting pipe, and the outer wall of the second connecting pipe is hermetically connected with the inner wall of the first connecting pipe; and one end of the coring inner pipe, which is far away from the water stop valve, is also positioned in the coring outer pipe. The utility model provides a pair of a sample tube subassembly for river course bottom material sampler through installing the stagnant water valve additional, can discharge the river that gets into the core inner tube when guaranteeing normal operation to the pressure inside and outside the body is maintained, the assurance sample does not drop.

Description

Sampling tube assembly for river sediment sampler

Technical Field

The utility model belongs to the technical field of the survey type of meter building survey, more specifically relates to a sample tube subassembly for river course bottom sampler.

Background

The existing sampling technology is that a large machine body is used as a fixed frame and a power source, and a vibration part or a hydraulic motor is driven by a hydraulic drive power part, so that a rotating rod is driven to feed and sample in soil. The conventional river channel sampler has the defects that a power part is heavy, and the operation on a small ship body cannot be realized. In the power source selection, hydraulic pressure has all been selected to the prior art and has been driven, and hydraulic power device and hydraulic pressure guide rail have directly increased the volume of organism, have reduceed the convenience simultaneously. On the coring pipe, the prior art only adds a reed at the bottom inlet, and the coring effect on the sample with large water content in the soil body is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome at least one defect among the above-mentioned prior art, provide a sampling tube subassembly for river course bottom material sampler, can be better carry out the underwater operation sample, avoid the sample to drop.

In order to solve the technical problem, the utility model discloses a technical scheme is: a sampling tube assembly for a riverway substrate sampler comprises a core inner tube, a core outer tube, a water stop valve, a first connecting tube and a second connecting tube; one end of the coring inner pipe is connected with the water inlet end of the water stop valve, and the water outlet end of the water stop valve is connected with the second connecting piece; the coring outer pipe is sleeved outside the coring inner pipe, one end of the coring outer pipe is connected with one end of a first connecting pipe, the second connecting pipe is arranged in the first connecting pipe, and the outer wall of the second connecting pipe is hermetically connected with the inner wall of the first connecting pipe; and one end of the coring inner pipe, which is far away from the water stop valve, is also positioned in the coring outer pipe. When the device is used, the whole device is pressed downwards, so that the sampling outer tube is contacted with a sample, and the sampling outer tube is also connected with a vibration source at the same time, and the functions of breaking soil and the like are realized through vibration; the water flow and the sample enter from the outer pipe and flow to the inner pipe, the water flow pushes the valve plug of the water stop valve open through the water inlet at the bottom of the water stop valve, the water flow enters the valve body and flows away through the water outlet of the water stop valve, and meanwhile, the valve plug is restored to a closed state under the elasticity of the spring; most samples are left in the sampling inner pipe, and when the sampling inner pipe is filled with the samples and is lifted to the upper extraction device, the water stop valve keeps a sealing state, so that the pressure difference between the coring inner pipe and the outside is kept, and the samples left in the coring inner pipe are not easy to drop. The setting of stagnant water valve makes it can get rid of when getting core inner tube and getting the unnecessary river water in the core outer tube in the in-process of pushing down the sampler and can also keep getting the inside and outside pressure of core inner tube at the in-process of pulling up the sampler, guarantees that the great river course substrate sample of water content can not drop when extracting the corer and hold the core inner tube

In one embodiment, one end of the second connecting pipe is connected with the water stop valve in a sealing mode through a gasket. The sealing performance can be further improved by arranging the gasket, and the tightness of the connection of the water stop valve and the core taking inner pipe is ensured.

In one embodiment, a rubber bushing is sleeved outside one end, away from the water stop valve, of the second connecting pipe, and the second connecting pipe is connected with the inner wall of the first connecting pipe in an interference fit mode through the rubber bushing. The rubber bushing is arranged at the joint of the second connecting pipe and the first connecting pipe, so that the coring inner pipe cannot be directly contacted with a vibration source, the vibration damage of the vibration source to the coring inner pipe can be reduced, and the phenomenon that the coring inner pipe is greatly vibrated by the vibration source at the same time to influence the sampling effect is avoided; in addition, the arrangement of the rubber bushing can improve the sealing performance of the first connecting pipe and the second connecting pipe.

In one embodiment, a first water outlet communicated with the water outlet end of the water stop valve is arranged on the side wall of the second connecting pipe, and a second water outlet is arranged on the first connecting pipe; when the second connecting pipe is connected with the first connecting pipe, the first water outlet and the second water outlet are overlapped to realize mutual communication. And after entering the coring inner pipe, the flowing water flows through the water stop valve, flows out of the water outlet end of the water stop valve and flows out of the sampler from the first water outlet and the second water outlet.

In one embodiment, the coring outer tube has a diameter value at an end remote from the first connection tube that is less than the diameter value of the coring inner tube.

In one embodiment, the end of the coring outer tube, which is far away from the first connecting tube, is in a conical structure, and the diameter at the nozzle is the smallest.

In one embodiment, the end of the coring inner pipe, which is far away from the water stop valve, is provided with a leak-proof flap. The inner coring pipe is provided with a leakage-proof valve which can prevent the sample from falling to a certain extent; according to the invention, through the combined design of the leak-proof valve and the water stop valve, the pressure difference between the coring inner tube and the outside is kept by utilizing the sealing property of one-way circulation of the water stop valve, and the leak-proof function of the leak-proof valve is combined, so that the sampling efficiency can be further improved, and the sample is effectively prevented from falling from the coring inner tube.

In one embodiment, the coring outer tube is connected with the first connecting tube through threads. The first connecting pipe is connected with the coring outer pipe through threads, so that the first connecting pipe is convenient to detach and install.

In one embodiment, the water stop valve comprises a valve body, a valve plug and a spring, wherein one end of the valve body is a water outlet end, the other end of the valve body is a water inlet end, an installation seat is arranged at the axis in the valve body, and a through hole which penetrates through the installation seat in the axial direction is formed in the middle of the installation seat; the valve plug comprises a connecting column and a plug body, one end of the connecting column is arranged in the through hole in a penetrating mode and is connected with the mounting seat in a sliding mode, the other end of the connecting column is connected with the plug body, and the plug body is arranged at the water outlet end of the valve body and is used for plugging the water outlet of the valve body; the spring is sleeved on the connecting column, one end of the spring is connected with the mounting seat, and the other end of the spring is connected with the connecting column. When using, the valve plug is upwards backed up to rivers for the water mouth of valve body is opened, and rivers can the flow, and when rivers were no longer upwards backed up, the valve plug recovered the original state under the effect of spring, continued shutoff valve port.

In one embodiment, the leak-proof valve is a hollow conical column structure surrounded by a plurality of conical sheets, one end of the conical column structure with a larger bottom surface is connected with the inner wall at the opening of the coring inner pipe, and the other end faces the water stop valve. The design of hollow toper structure can not influence the sample on the one hand and get into the coring inner tube, and on the other hand can also play and block the effect that the sample dropped.

Compared with the prior art, the beneficial effects are: the utility model provides a sampling tube assembly for a river sediment sampler, which can discharge river water entering a core-taking inner tube while ensuring normal operation by additionally arranging a water stop valve, and can maintain the internal and external pressure of a tube body, thereby ensuring that a sample does not fall off; in addition, through the interaction of stagnant water valve and leak protection lamella, further improved the effect of sample, more effectual the problem of having solved the sample and dropping.

Drawings

Fig. 1 is an explosion diagram of the structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a cross-sectional view B-B of fig. 2 according to the present invention.

Reference numerals: 1. coring the inner tube; 2. coring the outer tube; 3. a water stop valve; 4. a first connecting pipe; 5. a second connecting pipe; 6. a first water outlet; 7. a second water outlet; 8. preventing the valve from leaking; 9. a valve plug; 10. a valve body; 11. a spring; 12. and (7) mounting a seat.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the invention; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.

As shown in fig. 1 and 2, a sampling tube assembly for a channel substrate sampler includes a core inner tube 1, a core outer tube 2, a water stop valve 3, a first connection tube 4, and a second connection tube 5; one end of the coring inner pipe 1 is connected with the water inlet end of the water stop valve 3, and the water outlet end of the water stop valve 3 is connected with the second connecting piece; the outer coring pipe 2 is sleeved outside the inner coring pipe 1, one end of the outer coring pipe 2 is connected with one end of the first connecting pipe 4, the second connecting pipe 5 is arranged in the first connecting pipe 4, and the outer wall of the second connecting pipe 5 is hermetically connected with the inner wall of the first connecting pipe 4; and one end of the coring inner pipe 1 far away from the water stop valve 3 is also positioned in the coring outer pipe 2. When the device is used, the whole device is pressed downwards, so that the sampling outer tube is contacted with a sample, and the sampling outer tube is also connected with a vibration source at the same time, and the functions of breaking soil and the like are realized through vibration; water flow and a sample enter from the outer pipe and flow to the inner pipe, the water flow pushes the valve plug 9 of the water stop valve 3 open through the water inlet at the bottom of the water stop valve 3, the water flow enters the valve body 10 and flows away through the water outlet of the water stop valve 3, and meanwhile, the valve plug 9 recovers a closed state under the elasticity of the spring 11; most samples are left in the sampling inner pipe, and when the sampling inner pipe is filled with the samples and is lifted to the upper extraction device, the water stop valve 3 keeps a sealing state, so that the pressure difference between the coring inner pipe 1 and the outside is kept, and the samples left in the coring inner pipe 1 are not easy to fall. The arrangement of the water stop valve 3 ensures that the internal and external pressure of the inner tube 1 can be kept in the process of pulling up the sampler while the excessive river water in the inner tube 1 and the outer tube 2 is removed in the process of pressing down the sampler, thereby ensuring that the river sediment sample with large water content can not fall off when the coring device is pulled out

In one embodiment, one end of the second connection pipe 5 is connected with the water stop valve 3 in a sealing manner through a gasket. The sealing performance can be further improved by arranging the gasket, and the tightness of the connection of the water stop valve 3 and the core taking inner pipe 1 is ensured.

In one embodiment, a rubber bushing is sleeved outside one end of the second connecting pipe 5 far away from the water stop valve 3, and the second connecting pipe 5 is connected with the inner wall of the first connecting pipe 4 in an interference fit mode through the rubber bushing. The rubber bushing is arranged at the joint of the second connecting pipe 5 and the first connecting pipe 4, so that the coring inner pipe 1 cannot be directly contacted with a vibration source, the vibration damage of the vibration source to the coring inner pipe 1 can be reduced, and the phenomenon that the vibration source greatly vibrates the coring inner pipe 1 at the same time to influence the sampling effect is avoided; in addition, the provision of the rubber bush can improve the sealing property between the first connection pipe 4 and the second connection pipe 5.

In one embodiment, a first water outlet 6 communicated with the water outlet end of the water stop valve 3 is arranged on the side wall of the second connecting pipe 5, and a second water outlet 7 is arranged on the first connecting pipe 4; when the second connecting pipe 5 is connected with the first connecting pipe 4, the first water outlet 6 and the second water outlet 7 are overlapped to realize mutual communication. After entering the coring inner tube 1, the running water flows through the water stop valve 3, flows out from the water outlet end of the water stop valve 3, and then flows out of the sampler from the first water outlet 6 and the second water outlet 7.

In one of the embodiments, as shown in fig. 3, the value of the diameter of the coring external tube 2 at the end remote from the first connection tube 4 is less than the value of the diameter of the coring internal tube 1.

In one embodiment, the end of the coring outer tube 2 remote from the first connection tube 4 is tapered and has a minimum diameter at the orifice.

In one embodiment, as shown in fig. 1 and 3, the end of the coring internal tube 1 remote from the water stop valve 3 is provided with a leak-proof flap 8. The inner coring pipe 1 is provided with a leakage-proof valve 8, and the leakage-proof valve 8 can prevent a sample from falling to a certain extent; in the invention, through the combined design of the leak-proof flap 8 and the water stop valve 3, the pressure difference between the coring inner tube 1 and the outside is kept by utilizing the sealing property of one-way circulation of the water stop valve 3, and the leak-proof function of the leak-proof flap 8 is combined, so that the sampling efficiency can be further improved, and the sample can be effectively prevented from falling from the coring inner tube 1.

In one embodiment, the coring outer tube 2 is threadably connected to the first connecting tube 4. The first connecting pipe 4 is connected with the coring outer pipe 2 through threads, so that the first connecting pipe is convenient to detach and mount.

In one embodiment, as shown in fig. 3, the water stop valve 3 includes a valve body 10, a valve plug 9 and a spring 11, one end of the valve body 10 is a water outlet end, the other end is a water inlet end, an installation seat 12 is arranged at the axis inside the valve body 10, and a through hole penetrating axially is arranged in the middle of the installation seat 12; the valve plug 9 comprises a connecting column and a plug body, one end of the connecting column is arranged in the through hole in a penetrating mode and is connected with the mounting seat 12 in a sliding mode, the other end of the connecting column is connected with the plug body, and the plug body is arranged at the water outlet end of the valve body 10 and is used for plugging the water outlet of the valve body 10; the spring 11 is sleeved on the connecting column, one end of the spring 11 is connected with the mounting seat 12, and the other end of the spring is connected with the connecting column. When using, flowing water upwards backs up valve plug 9 for the water mouth of valve body 10 is opened, and rivers can the flow, and when rivers were no longer upwards pushed up, valve plug 9 recovered the original state under spring 11's effect, continued shutoff valve port.

In one embodiment, as shown in fig. 3, the leak-proof flap 8 is a hollow conical column structure surrounded by a plurality of conical sheets, one end of the conical column structure with a larger bottom surface is connected with the inner wall at the pipe orifice of the coring inner pipe 1, and the other end faces the water stop valve 3. The design of hollow toper structure can not influence the sample on the one hand and get into coring inner tube 1, and on the other hand can also play the effect that blocks the sample and drop.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A sampling tube assembly for a riverway bottom sampler is characterized by comprising a core taking inner tube (1), a core taking outer tube (2), a water stop valve (3), a first connecting tube (4) and a second connecting tube (5); one end of the coring inner pipe (1) is connected with the water inlet end of the water stop valve (3), and the water outlet end of the water stop valve (3) is connected with the second connecting piece; the coring device is characterized in that the coring outer pipe (2) is sleeved outside the coring inner pipe (1), one end of the coring outer pipe (2) is connected with one end of a first connecting pipe (4), a second connecting pipe (5) is arranged in the first connecting pipe (4), and the outer wall of the second connecting pipe (5) is hermetically connected with the inner wall of the first connecting pipe (4); and one end of the coring inner pipe (1) far away from the water stop valve (3) is also positioned in the coring outer pipe (2).

2. A sampling tube assembly for a channel substrate sampler as claimed in claim 1 wherein one end of the second connecting tube (5) is sealingly connected to the stop valve (3) by a gasket.

3. The sampling tube assembly for the riverway bottom sampler according to claim 2, characterized in that the outer part of one end of the second connecting tube (5) far away from the water stop valve (3) is sleeved with a rubber bushing, and the second connecting tube (5) is connected with the inner wall of the first connecting tube (4) in an interference fit manner through the rubber bushing.

4. A sampling tube assembly for a river bed material sampler according to claim 1, wherein the side wall of the second connecting tube (5) is provided with a first water outlet (6) communicated with the water outlet end of the water stop valve (3), and the first connecting tube (4) is provided with a second water outlet (7); when the second connecting pipe (5) is connected with the first connecting pipe (4), the first water outlet (6) and the second water outlet (7) are overlapped to realize mutual communication.

5. A sampling tube assembly for a channel substrate sampler as claimed in claim 4 wherein the diameter of the outer coring tube (2) at the end remote from the first connecting tube (4) has a value less than the diameter of the inner coring tube (1).

6. A sampling tube assembly for a channel substrate sampler as claimed in claim 5 in which the end of the outer coring tube (2) remote from the first connector tube (4) is of conical configuration and has a minimum diameter at the mouth of the tube.

7. A sampling tube assembly for a channel substrate sampler as claimed in any one of claims 1 to 6 wherein the end of the coring internal tube (1) remote from the water stop valve (3) is provided with a leak-proof flap (8).

8. A sampling tube assembly for a channel substrate sampler as claimed in claim 7 wherein the outer coring tube (2) is threadedly connected to the first connecting tube (4).

9. The sampling tube assembly for the riverway bottom sampler according to claim 7, wherein the water stop valve (3) comprises a valve body (10), a valve plug (9) and a spring (11), one end of the valve body (10) is a water outlet end, the other end of the valve body is a water inlet end, a mounting seat (12) is arranged at the axis inside the valve body (10), and a through hole which axially penetrates is formed in the middle of the mounting seat (12); the valve plug (9) comprises a connecting column and a plug body, one end of the connecting column is arranged in the through hole in a penetrating mode and is connected with the mounting seat (12) in a sliding mode, the other end of the connecting column is connected with the plug body, and the plug body is arranged at the water outlet end of the valve body (10) and is used for plugging the water outlet of the valve body (10); the spring (11) is sleeved on the connecting column, one end of the spring (11) is connected with the mounting seat (12), and the other end of the spring is connected with the connecting column.

10. A sampling tube assembly for a channel substrate sampler as claimed in claim 9 wherein the leak-proof flap (8) is a hollow conical column structure surrounded by a plurality of conical sheets, the larger bottom end of the conical column structure is connected with the inner wall of the orifice of the coring inner tube (1), and the other end faces the water stop valve (3).