CN212159194U

CN212159194U - Floater depthkeeping water quality sampler

Info

Publication number: CN212159194U
Application number: CN202020534998.4U
Authority: CN
Inventors: 牛利民; 高伟聪; 檀密春; 白鹤; 卢艳青
Original assignee: Hebei Zhengwei Testing Technology Service Co ltd
Current assignee: SHIJIAZHUANG DERUN ENVIRONMENTAL PROTECTION & TECHNOLOGY Co.,Ltd.
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-12-15
Anticipated expiration: 2030-04-13

Abstract

The utility model relates to a float depth-fixed water quality sampler, which comprises a sampling barrel, a piston type sampling device arranged in the sampling barrel, a driving device used for driving the piston type sampling device to move and a floating ball fixedly connected with the sampling barrel and used for controlling the submergence depth of the sampling barrel; the utility model discloses utilize drive arrangement to drive piston sampling device and carry out work, before the sampling bucket does not reach the specified degree of depth, piston sampling device is out of work, and the water sample can not enter into the sampling bucket, and when the sampling bucket reach behind the specified degree of depth stop device remove piston sampling device's limiting displacement, under the effect of elasticity stay cord, piston base upward movement to realize the sampling.

Description

Floater depthkeeping water quality sampler

Technical Field

The utility model relates to a water sampling equipment field specifically is a float depthkeeping water quality sampler.

Background

In the field of water quality sampling detection, water with a fixed depth is often required to be sampled, the sampling method which is commonly adopted at present is to sink a sampling barrel to a sampling water area, the sampling barrel is filled with water and then sinks to a required depth by utilizing the self weight of the sampling barrel, but the current sampler is immersed in the water area, and water enters the sampling barrel in the submerging process of the sampling barrel, so that finally collected water is not completely the water quality with the specified depth, but the water above the specified depth is collected, and the sampling representativeness is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a can gather the water sample of the appointed degree of depth, the higher float depthkeeping water quality sampling ware of the sampling degree of accuracy is provided.

The utility model adopts the technical proposal that: a float depth-fixed water sampler comprises a sampling barrel, a piston type sampling device arranged in the sampling barrel, a driving device used for driving the piston type sampling device to move and a floating ball fixedly connected with the sampling barrel and used for controlling the submergence depth of the sampling barrel.

Further, the piston type sampling device comprises a piston base arranged in the sampling barrel and a piston sleeve fixed on the piston base;

the driving device comprises an elastic pull rope and a limiting device used for limiting the piston type sampling device, one end of the elastic pull rope is fixed with the piston base or the piston sleeve, and the other end of the elastic pull rope is fixed with the barrel body of the sampling barrel.

Further, stop device rotates the limiting plate that sets up in the backup pad and sets up the one end complex spacing groove that is used for with the limiting plate on the piston sleeve including setting up in the backup pad at sampling bucket top through the pivot, the rotation of limiting plate realizes spacing or stepping down to the piston sleeve.

Furthermore, the floating ball is fixedly connected with the other end of the limiting plate through a pull wire.

Further, the rotating shaft of the limiting plate is located at one end close to the piston sleeve.

Furthermore, a sampling port is arranged on the bottom plate of the sampling barrel, and the sampling port is sealed when the piston type sampling device is positioned at the lowest end position.

Furthermore, the elastic pull rope is a rubber band, and the other end of the elastic pull rope is fixedly connected with the outer side wall of the sampling barrel after bypassing the rotating shaft arranged on the supporting plate.

The utility model discloses an actively the effect does: the utility model discloses utilize drive arrangement to drive piston sampling device and carry out work, before the sampling bucket does not reach the specified degree of depth, piston sampling device is out of work, and the water sample can not enter into the sampling bucket, and when the sampling bucket reach behind the specified degree of depth stop device remove piston sampling device's limiting displacement, under the effect of elasticity stay cord, piston base upward movement to realize the sampling. Stop device is connected with the floater, during the use, only needs to set for the length of acting as go-between of floater and sampling bucket, and after the sampling bucket reachd appointed degree of depth, under the buoyancy of floater and the effect of sampling bucket self gravity, the limiting plate just can realize deflecting, loses the limiting displacement to piston sleeve, can realize automatic unblock, can carry out the sampling work automatically after the sampling bucket reaches appointed degree of depth.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the structure of the sampling port of the present invention;

fig. 3 is a schematic structural view of the piston-type sampling device of the present invention;

fig. 4 is a schematic structural view of the limiting device of the present invention.

Detailed Description

As shown in the attached drawings 1-4, the utility model discloses a sampling bucket 1, be located sampling opening 5 on the 1 bottom plate of sampling bucket, install at the inside piston sampling device of sampling bucket 1 and be used for driving the drive arrangement that piston sampling device carries out the sampling work, still be provided with floater 7 through 6 acting as go-between on sampling bucket 1 for make sampling bucket 1 suspend at the appointed degree of depth, require different 6 acting as go-between that can choose for use different length according to the degree of depth.

Piston sampling device is including setting up piston base 8 in sampling barrel 1 and fixing piston sleeve 2 on piston base 8, and the external diameter of piston bottom plate 8 corresponds with the internal diameter of sampling barrel 1 to can reciprocate in sampling barrel 1, its principle is similar with ordinary syringe, and in moving up with water from sample connection 5 inhales sampling barrel 1 through piston bottom plate 8, drive arrangement just is used for driving piston bottom plate 8 upward movement.

A supporting plate 3 is arranged at the top of the sampling barrel 1, and the piston sleeve 2 penetrates through the supporting plate 3 to ensure that the piston sleeve 2 moves along the vertical direction.

Drive arrangement includes elasticity stay cord 4 and is used for carrying out spacing stop device to piston sampling device, elasticity stay cord 4 adopts the rubber rope, and its one end is fixed with piston base 8 or piston sleeve 2, and the other end is walked around the pivot of setting in backup pad 3 and is fixed with the lateral wall of the 1 ladle body of sampling bucket, in this embodiment, is fixed with go-between 9 on piston base 8, and the one end and the go-between 9 of elasticity stay cord 4 are fixed.

Stop device rotates the limiting plate 10 that sets up in backup pad 3 and sets up on piston sleeve 2 and be used for with limiting plate 10's one end complex spacing groove 11 including setting up in the backup pad 3 at 1 top of sampling bucket through the pivot, limiting plate 10's rotatory spacing or abdicating piston sleeve 2 of realization. Under initial condition, piston sleeve 2 is located the bottom of sampling bucket 1 and seals sampling port 5, and the spacing groove 11 on the piston sleeve 2 is supported to the one end of limiting plate 10 simultaneously, and the pivot of limiting plate 10 is located the one end that is close to piston sleeve 2, utilizes lever principle, and the right side end as shown in fig. 4 of limiting plate 10 contacts with spacing groove 11 all the time, can prevent effectively that piston sleeve 2 from rising under the buoyancy, guarantees that sampling bucket 1 dives the in-process can not gather the sample.

The floater 7 is through the left side fixed connection who acts as go-between 6 and limiting plate 10, after sampling bucket 1 sinks to the assigned position, act as go-between 6 and flare-out, the power that acts on limiting plate 10 this moment has the buoyancy of floater and sampling bucket 1's gravity, under the dual effort, limiting plate 10 is rotatory, and its right side end breaks away from with spacing groove 11, loses the limiting displacement to piston sleeve 2, under the elastic action of elasticity stay cord 4, piston base 8 just can the upward movement, begins to carry out the water sample collection.

The utility model discloses utilize stop device to inject piston base 8's position, at the sunken in-process of sampling bucket 1, remain the limiting displacement throughout, piston base 8 seals sampling port 5 all the time, can not gather at this in-process. After the specified position is reached, the limiting plate 10 deflects under the action of the buoyancy of the floating ball 7 and the gravity of the sampling barrel 1, the limiting effect on the piston base 8 is lost, and the piston base 8 is pulled by the elastic pull wire 4 to move upwards to perform the sampling work.

The utility model discloses a water sample collection of appointed degree of depth does not have water and enters into sampling barrel 1 before sampling barrel 1 does not reach the appointed degree of depth, has improved the accuracy of sampling greatly.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention.

Claims

1. The utility model provides a float depthkeeping water quality sample thief, its characterized in that its includes sampling bucket (1), set up the piston sampling device in sampling bucket (1), be used for driving the drive arrangement of piston sampling device motion and with sampling bucket (1) fixed connection be used for controlling the floater (7) of sampling bucket (1) dive degree of depth.

2. The float depth-control water sampler of claim 1, characterized in that the piston-type sampling device comprises a piston base (8) arranged in the sampling barrel (1) and a piston sleeve (2) fixed on the piston base (8);

the driving device comprises an elastic pull rope (4) and a limiting device for limiting the piston type sampling device by utilizing buoyancy, one end of the elastic pull rope (4) is fixed with the piston base (8) or the piston sleeve (2), and the other end of the elastic pull rope is fixed with the barrel body of the sampling barrel (1).

3. The float depth-fixed water sampler according to claim 2, characterized in that the limiting device comprises a supporting plate (3) arranged at the top of the sampling barrel (1), a limiting plate (10) arranged on the supporting plate (3) through rotation of a rotating shaft, and a limiting groove (11) arranged on the piston sleeve (2) and used for being matched with one end of the limiting plate (10), wherein the limiting plate (10) is rotated to limit or give way the piston sleeve (2).

4. The float depth-control water sampler as claimed in claim 3, wherein the float ball (7) is fixedly connected with the other end of the limit plate (10) through a pull wire (6).

5. A float depthkeeping water sampler as claimed in claim 4 characterised in that the axis of rotation of the restriction plate (10) is located near one end of the piston sleeve (2).

6. The float depth-control water sampler according to claim 1, characterized in that a sampling port (5) is arranged on the bottom plate of the sampling barrel (1), and the piston type sampling device seals the sampling port (5) when located at the lowest end position.

7. The float depth-fixed water sampler as claimed in claim 2, wherein the elastic pull rope (4) is a rubber band, and the other end of the elastic pull rope (4) is fixedly connected with the outer side wall of the sampling barrel (1) after bypassing the rotating shaft arranged on the supporting plate (3).