CN211602570U

CN211602570U - In-situ slurry sampling device

Info

Publication number: CN211602570U
Application number: CN202020297124.1U
Authority: CN
Inventors: 王丽; 洪伟; 林健聪; 易皓; 崔恺
Original assignee: South China Institute of Environmental Science of Ministry of Ecology and Environment
Current assignee: South China Institute of Environmental Science of Ministry of Ecology and Environment
Priority date: 2020-03-11
Filing date: 2020-03-11
Publication date: 2020-09-29
Anticipated expiration: 2030-03-11

Abstract

The utility model relates to a technical field of environmental investigation, to the shortcoming that the sample cylinder sample easily received the pollution among the prior art, aim at providing an normal position mud sampling device, including the sampling cylinder, the one end of sampling cylinder is opened there is into thick liquid hole, and the sampling cylinder is kept away from one of advancing thick liquid hole and is served and be connected with the stay cord, advances thick liquid hole and is equipped with the sealing plug that leads to and closes into thick liquid hole, is connected with the connecting rope on the sealing plug, and the connecting rope is kept away from the one end of sealing plug and is connected with the gravity piece, installs the drive sealing plug in the sampling cylinder and leaves the driving piece of advancing thick liquid hole, and the direction of motion of. Through the setting of gravity piece, can drive the sampling tube and take a sample to being close to sample hole department, improved the purity that mud sample gathered. When the mud needs to be taken out, the connecting rope is not tightened, and the mud inlet hole can be opened to discharge the mud.

Description

In-situ slurry sampling device

Technical Field

The utility model belongs to the technical field of the technique of environment reconnaissance and specifically relates to a normal position mud sampling device is related to.

Background

Many geology is influenced by groundwater and unfavorable geological conditions, and the characteristics of soil can change, so often need carry out reconnaissance to the geological environment in underground to know the change of geological environment, including digging the thief hole in the underground deep layer, detect with the mud that gathers in the thief hole.

The existing method for collecting the slurry in the sampling hole is to extract the slurry in the sampling hole by a suction pump for detection. The water inlet end of the suction pump is communicated with the suction pipe, and the water outlet end of the suction pump is communicated with the charging tank. In transferring the thief hole through with the suction tube, start the suction pump alright with take out the mud in the thief hole and take out the storage tank.

The above prior art solutions have the following drawbacks: the in-process of suction tube cooperation suction pump at the sample, the in-process of thief hole is being put down to the suction tube, is in open state because of the one end that the suction tube kept away from the suction pump always to before making the suction tube reach the thief hole, easily by other pollutants pollution, influence the sample rate of accuracy, consequently, need improve this.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an normal position mud sampling device.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an in situ mud sampling device, includes the sampler barrel, the one end of sampler barrel is opened there is into thick liquid hole, the sampler barrel is kept away from one of advancing the thick liquid hole and is served and be connected with the stay cord, advances the thick liquid hole and is equipped with the sealing plug that leads to and closes into the thick liquid hole, be connected with the connecting rope on the sealing plug, the one end that the sealing plug was kept away from to the connecting rope is connected with the gravity piece, install the driving piece that the drive sealing plug left into the thick liquid hole in the sampler barrel, the direction of motion of sealing plug is unanimous with.

By adopting the technical scheme, the slurry sampling device is placed at the position of the slurry sampling hole by pulling the pull rope, then the pull force applied to the sampling cylinder by the pull rope is released, the gravity block overcomes the buoyancy force applied to the sampling cylinder by the slurry under the action of the self gravity, the sampling cylinder is driven to continue to move towards the deep part of the sampling hole under the action of the connecting rope, until the gravity block is abutted to the bottom of the sampling hole, the gravity block stops moving, the connecting rope is not tightened again during the continuous movement of the sampling cylinder, the connecting rope relieves the pull force applied to the sealing plug, the sealing plug is driven by the driving piece to leave the slurry inlet hole, the slurry enters the sampling cylinder from the slurry inlet hole, after the sampling cylinder is statically placed for a period of time, the pull rope is pulled to lift the sampling cylinder to be separated from the sampling hole, the connecting rope is tightened under the action of the gravity block after the gravity block is separated from the sampling hole, and the, the moving direction of the sealing plug is consistent with the length direction of the sampling tube, so that the sealing block is pulled back to be plugged at the grout inlet, and the mud in the sampling tube is difficult to flow out of the grout inlet. Through the setting of gravity piece, can drive the sampling tube and take a sample to being close to sample hole department, the sampling tube is difficult to be polluted, has improved the purity that mud sample gathered. When the mud needs to be taken out, the connecting rope is not tightened, and the mud inlet hole can be opened to discharge the mud.

The present invention may be further configured in a preferred embodiment as: the driving piece comprises a cross rod which is connected in the sampling cylinder in a sliding mode along the length direction of the sampling cylinder, the length of the cross rod is larger than the aperture of the slurry inlet hole, and the cross rod is fixedly connected with the sealing plug.

Through adopting above-mentioned technical scheme, through set up the horizontal pole in the sampling tube, be greater than the aperture of advancing the thick liquid hole because of the length of horizontal pole to make the sealing plug when connecting the rope and applying pulling force to the sealing plug, the sealing plug is difficult for falling out outside the sampling tube, and the sealing plug keeps the leakproofness good to advancing the thick liquid hole.

The present invention may be further configured in a preferred embodiment as: the driving piece comprises an expansion spring, the expansion spring is located between the transverse rod and the inner side wall of the sampling barrel, the length direction of the expansion spring is consistent with that of the sampling barrel, one end of the expansion spring is fixedly connected with the transverse rod, and the other end of the expansion spring is fixedly connected with the inner side wall of the sampling barrel.

Through adopting above-mentioned technical scheme, utilize expanding spring itself to have the characteristic of elasticity, when connecting the rope and being in the laxative state, expanding spring applys the elasticity of keeping away from into the thick liquid hole to the horizontal pole to drive the sealing plug and break away from into the thick liquid hole toward the direction of sampler barrel, and then make mud can flow into in the sampler barrel from advancing the thick liquid hole. When the gravity block is lifted to enable the connecting rope to be tightened, the pulling force applied to the sealing plug by the gravity block through the connecting rope is larger than the elastic force applied to the sealing plug by the telescopic spring, so that the sealing plug is reset, and the sealing plug is plugged at the grout inlet hole again.

The present invention may be further configured in a preferred embodiment as: the utility model discloses a sampling device, including a sealing plug, a sampling tube, a connecting rod, a dead lever, a stop nut, a connecting rod, a stopper, a guide rod, a fixing nut, a fixing rod, a connecting rod, a stop nut, a fixing nut and a fixing nut, wherein the sealing plug is used for fixing the sealing plug on one end outside the sampling tube, the axis of the guide rod is parallel to the axis of the sealing plug, the sampling tube is provided with an end fixedly connected with dead lever of a grout inlet hole, the dead lever is parallel to the guide rod, the connecting rod is sleeved on the guide rod, the one end of the guide rod is kept away from the connecting rod is sleeved on the dead lever.

Through adopting above-mentioned technical scheme, through fixed connection guide bar on the sealing plug, fixed connection and the parallel dead lever of guide bar on the sampling tube, so that after taking out the sampling tube, can be through screwing up stop nut and fixation nut so that the rigidity of connecting rod, because of the one end and the dead lever of connecting rod are connected, the one end and the sealing plug fixed connection of guide bar, so that the connecting rod can fix the sealing plug on advancing the thick liquid hole with the help of the dead lever, so that at the in-process of carrying the sampling tube, the sealing plug is difficult for breaking away from into thick liquid hole, mud in the sampling tube is difficult for flowing.

The present invention may be further configured in a preferred embodiment as: and an elastic sealing ring is sleeved on the outer side wall of the sealing plug.

Through adopting above-mentioned technical scheme, cup joint the leakproofness of being connected between sealing plug and the advance thick liquid hole through increasing on the lateral wall of sealing plug to make the moisture that contains in the interior mud of sampling tube difficult follow the play thick liquid hole outflow.

The present invention may be further configured in a preferred embodiment as: the inside wall that the sampler barrel is close to the one end of advancing the thick liquid hole is sunken to have the spout, the length direction of spout with the length direction of sampler barrel is unanimous, the one end of horizontal pole stretch into in the spout and with spout sliding connection.

Through adopting above-mentioned technical scheme, through set up the slip chamber in the sampling tube to the direction of motion of horizontal pole has the effect of direction, so that the sealing plug just is advancing the thick liquid hole all the time under the drive of horizontal pole, with the expert to advancing the thick liquid hole and realizing the preferred and close the effect.

The present invention may be further configured in a preferred embodiment as: the sampling tube is located sliding chamber department opening purge orifice, it has the stopper to peg graft on the purge orifice.

Through adopting above-mentioned technical scheme, through setting up the purge hole on the sampling tube, after discharging the mud of sampling tube, in time clear up the sampling tube to make the sample of the previous collection be difficult for causing the influence to the sample of next collection. Through the stopper shutoff on the purge hole to in-process at the collection sampling tube transport, the difficult washing hole outflow of following of mud in the sampling tube.

The present invention may be further configured in a preferred embodiment as: and a one-way exhaust valve is arranged on the side wall of the sampling cylinder far away from the slurry inlet hole.

Through adopting above-mentioned technical scheme, when advancing the thick liquid hole and not opening, the sampling tube is inside to be in the state of totally sealing, has retained certain air in the sampling tube, through setting up one-way discharge valve to make after mud gets into the sampling tube from advancing the thick liquid hole, the air in the sampling tube can be followed one-way discharge valve and discharged, in order to keep the inside and outside atmospheric pressure's of sampling tube balance.

To sum up, the utility model discloses a beneficial technological effect does:

1. through the setting of gravity piece, can drive the sampling tube and take a sample to being close to sample hole department, the sampling tube is difficult for receiving the pollution when reaching the sample site, has improved the purity that mud sample gathered. When the slurry needs to be taken out, the slurry inlet hole can be opened to discharge the slurry by making the connecting rope not to be tightened any more;

2. the guide rod is fixedly connected to the sealing plug, and the fixing rod parallel to the guide rod is fixedly connected to the sampling tube, so that after the sampling tube is taken out, the position of the connecting rod can be fixed by screwing the limit nut and the fixing nut;

3. when advancing the thick liquid hole and not opening, the sampling tube is inside to be in the state of totally enclosed, has certain air in the sampling tube to through setting up one-way discharge valve to make in mud from advancing in the thick liquid hole gets into the sampling tube after, the air in the sampling tube can be followed one-way discharge valve and discharged, in order to keep the inside and outside atmospheric pressure's of sampling tube balance.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

fig. 2 is a schematic view of the internal structure of the sampling tube of this embodiment.

In the figure, 1, a sampling tube; 2. pulling a rope; 3. a slurry inlet hole; 4. a sealing plug; 5. connecting ropes; 6. a gravity block; 7. a drive member; 71. a cross bar; 72. a tension spring; 8. a seal ring; 9. a chute; 10. an anti-falling eaves; 11. fixing the rod; 12. a guide bar; 13. a connecting rod; 14. a limit nut; 15. a one-way exhaust valve; 16. cleaning the holes; 17. a plug; 18. and (5) fixing the nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an in situ mud sampling device, including sampler barrel 1, the one end of sampler barrel 1 is opened there is into thick liquid hole 3, and one end fixedly connected with stay cord 2 of advancing thick liquid hole 3 is kept away from to sampler barrel 1, advances thick liquid hole 3 and is equipped with the sealing plug 4 that leads to the closed thick liquid hole 3, and sealing plug 4 is connected with connecting rope 5 towards the outer one end of sampler barrel 1, and connecting rope 5 keeps away from the one end fixedly connected with gravity piece 6 of sealing plug 4.

Referring to fig. 2, the cross section of the sampling tube 1 is circular, the cross section of the sealing plug 4 is circular, the axis of the sealing plug 4 is parallel to the axis of the sampling tube 1, and the opening direction of the grout inlet hole 3 is consistent with the length direction of the sampling tube 1.

Referring to fig. 2, a driving member 7 for driving the sealing plug 4 to be separated from the grout inlet hole 3 in the inner direction of the sampling barrel 1 is installed in the sampling barrel 1.

Referring to fig. 2, one end of the sealing plug 4 extends into the sampling tube 1, the driving member 7 includes a cross bar 71, two ends of the cross bar 71 are slidably connected to the inner side wall of the sampling tube 1, and the cross bar 71 is fixedly connected to one end of the sealing plug 4 located in the sampling tube 1.

Referring to fig. 2, two sliding chutes 9 are disposed on the inner side wall of the sampling tube 1, the two sliding chutes 9 are symmetrically distributed with the central axis of the sampling tube 1 as a symmetry axis, and two ends of the cross rod 71 respectively extend into the sliding chutes 9 and are connected with the sliding chutes 9 in a sliding manner.

Referring to fig. 2, the length of the sliding groove 9 is greater than that of the sealing plug 4, the starting end of the sliding groove 9 starts from the inner side wall of the end part of the sampling tube 1 provided with the grout inlet hole 3, and the tail end of the sliding groove 9 is provided with an anti-dropping eave 10.

Referring to fig. 2, the driving member 7 further includes a telescopic spring 72, a length direction of the telescopic spring 72 is identical to a length direction of the sampling tube 1, one end of the telescopic spring 72 is fixedly connected to the inner side wall of the sampling tube 1 at the end where the slurry inlet hole 3 is provided, and the other end of the telescopic spring 72 is fixedly connected to the end of the cross rod 71 close to the inner wall of the sampling tube 1. The two extension springs 72 are respectively located at two ends of the cross bar 71.

Referring to fig. 2, the sealing plug 4 is connected with the grout inlet 3 in a sliding and sealing manner. The sealing plug 4 is sleeved with an elastic sealing ring 8, and the sealing ring 8 is connected between the sealing plug 4 and the hole wall of the grout inlet hole 3 in a sealing mode.

Referring to fig. 1, a fixing rod 11 is fixedly connected to the sampling tube 1 and the grout inlet hole 3 at the same side and near the grout inlet hole 3, a guide rod 12 is fixedly connected to one end of the sealing plug 4 facing the outside of the sampling tube 1, the length direction of the guide rod 12 is consistent with that of the sampling tube 1, and the guide rod 12 is parallel to the fixing rod 11. A connecting rod 13 is sleeved between the guide rod 12 and the fixing rod 11, the connecting rod 13 is connected with the guide rod 12 in a sliding mode along the length direction of the guide rod 12, and the connecting rod 13 is connected with the fixing rod 11 in a sliding mode along the length direction of the fixing rod 11.

Referring to fig. 1, a limit nut 14 is threadedly connected to both sides of the guide bar 12 at the connection bar 13. The fixing rod 11 is connected with fixing nuts 18 at both sides of the connecting rod 13 through threads.

Referring to fig. 1, a cleaning hole 16 is arranged on the same side of the sampling cylinder 1 and the pulp inlet hole 3, and a plug 17 is inserted in the cleaning hole 16 in a sealing manner.

Referring to fig. 1, a one-way exhaust valve 15 is communicated with the side wall of the sampling cylinder 1 far away from the pulp inlet hole 3.

The working conditions and the implementation principle of the embodiment are as follows:

when needs sample, pulling stay cord 2 is in order to put into the thief hole with sampler barrel 1, and the action of gravity of the gravity piece 6 of connecting rope 5 is tightened down, connects rope 5 and exerts pulling force to sealing plug 4 so that sealing plug 4 shutoff is advancing thick liquid hole 3 in, because of the length of horizontal pole 71 is greater than the aperture of advancing thick liquid hole 3 to make sealing plug 4 be difficult for falling out outside sampler barrel 1. When the hole bottom of sampling hole is contacted to gravity piece 6, loosen the pulling force to stay cord 2, connect rope 5 and no longer tighten in sampler barrel 1 continues downstream, expanding spring 72 resets and moves toward the direction of keeping away from into thick liquid hole 3 with drive horizontal pole 71, horizontal pole 71 further drives sealing plug 4 and breaks away from into thick liquid hole 3, at this moment, the mud of sampler hole bottom flows into sampler barrel 1 from advancing thick liquid hole 3 in, in order to realize the collection to mud, sampler barrel 1 is under the drive of gravity piece 6, so that advance thick liquid hole 3 and open when arriving the sample hole completely, so that sampler barrel 1 is difficult for receiving other pollutants and polluting before arriving the sampling point, the purity of sampling has been improved.

After the sampling tube 1 is placed for a period of time, the pull rope 2 is pulled to lift the sampling tube 1, the connecting rope 5 is tightened again under the action of the gravity block 6, the pulling force applied to the sealing plug 4 by the gravity block 6 is greater than the elastic force applied to the sealing plug 4 by the telescopic spring 72, so that the sealing plug 4 is plugged at the slurry inlet hole 3 again, and slurry in the sampling tube 1 is difficult to flow out.

After taking out sampler barrel 1 to ground, firstly, sheathe a limit nut 14 on guide bar 12, then cup joint the both ends of connecting rod 13 on guide bar 12 and dead lever 11 respectively, another limit nut 14 is sheathe in at guide bar 12 at last, screw up two limit nut 14 and fix connecting rod 13 clamp tightly on guide bar 12, because of guide bar 12 and sealing plug 4 fixed connection, dead lever 11 and sampler barrel 1 fixed connection, and then make sealing plug 4 lock with sampler barrel 1 with the help of dead lever 11, so that in the process of transport, sealing plug 4 is difficult for breaking away from into thick liquid hole 3.

The sealing ring 8 is sleeved on the sealing plug 4 to increase the sealing performance between the sealing plug 4 and the slurry inlet hole 3, so that the moisture contained in the slurry is not easy to flow out from the slurry inlet hole 3.

The one-way exhaust valve 15 is arranged to balance the air pressure inside and outside the sampling tube 1 when the sampling tube 1 is used for sampling slurry, so that the sampling hole can be used for sampling slurry.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an in situ mud sampling device, includes sampler barrel (1), its characterized in that: one end of sampling tube (1) is opened there is into thick liquid hole (3), sampling tube (1) is kept away from one of advancing thick liquid hole (3) and is served and be connected with stay cord (2), advances thick liquid hole (3) and is equipped with to lead to and closes sealing plug (4) of advancing thick liquid hole (3), be connected with on sealing plug (4) and connect rope (5), connect rope (5) and keep away from the one end of sealing plug (4) is connected with gravity piece (6), install drive sealing plug (4) in sampling tube (1) and leave driving piece (7) of advancing thick liquid hole (3), the direction of motion of sealing plug (4) is unanimous with the length direction of sampling tube (1).

2. The in situ mud sampling apparatus of claim 1, wherein: the driving piece (7) comprises a cross rod (71) which is connected with the sampling barrel (1) in a sliding mode along the length direction of the sampling barrel (1), the length of the cross rod (71) is larger than the aperture of the slurry inlet hole (3), and the cross rod (71) is fixedly connected with the sealing plug (4).

3. The in situ mud sampling apparatus of claim 2, wherein: the driving piece (7) comprises an expansion spring (72), the expansion spring (72) is located the cross rod (71) and between the inner side walls of the sampling tube (1), the length direction of the expansion spring (72) is consistent with the length direction of the sampling tube (1), one end of the expansion spring (72) is fixedly connected with the cross rod (71), and the other end of the expansion spring (72) is fixedly connected with the inner side walls of the sampling tube (1).

4. An in situ mud sampling apparatus according to claim 3, wherein: a guide rod (12) is fixedly connected to one end, facing the outside of the sampling tube (1), of the sealing plug (4), the axis of the guide rod (12) is parallel to the axis of the sealing plug (4), a fixing rod (11) is fixedly connected to one end, provided with the slurry inlet hole (3), of the sampling tube (1), the fixing rod (11) is parallel to the guide rod (12), a connecting rod (13) is sleeved on the guide rod (12), one end, far away from the guide rod (12), of the connecting rod (13) is sleeved on the fixing rod (11), the connecting rod (13) is slidably connected with the guide rod (12) along the axis of the guide rod (12), the connecting rod (13) is slidably connected with the fixing rod (11) along the axis of the fixing rod (11), and both sides, located on the guide rod (12), of the connecting rod (13) are both in threaded connection with limit nuts (14), and fixing nuts (18) are in threaded connection with both sides of the connecting rod (13) on the fixing rod (11).

5. An in situ mud sampling apparatus according to claim 3, wherein: and an elastic sealing ring (8) is sleeved on the outer side wall of the sealing plug (4).

6. An in situ mud sampling apparatus according to claim 3, wherein: the inside wall that sampler barrel (1) is close to the one end of advancing thick liquid hole (3) is sunken to have spout (9), the length direction of spout (9) with the length direction of sampler barrel (1) is unanimous, the one end of horizontal pole (71) stretch into in spout (9) and with spout (9) sliding connection.

7. The in situ mud sampling apparatus of claim 1, wherein: the sampling tube (1) is positioned at an opening cleaning hole (16) of the sliding cavity, and a plug (17) is inserted into the cleaning hole (16).

8. The in situ mud sampling apparatus of claim 7, wherein: and a one-way exhaust valve (15) is arranged on the side wall of the sampling cylinder (1) far away from the pulp inlet hole (3).