CN212693347U - Mechanical water pressure fixed depth water sampler - Google Patents
Mechanical water pressure fixed depth water sampler Download PDFInfo
- Publication number
- CN212693347U CN212693347U CN202021553439.4U CN202021553439U CN212693347U CN 212693347 U CN212693347 U CN 212693347U CN 202021553439 U CN202021553439 U CN 202021553439U CN 212693347 U CN212693347 U CN 212693347U
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- China
- Prior art keywords
- barrel
- water
- barrel body
- piston shaft
- disc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a mechanical water pressure depthkeeping water sampler, including the both ends opening and the staving that is the cylinder, the inside intermediate position of staving is provided with the mounting bracket that permeates water, and the both sides of mounting bracket are provided with presses and becomes the telescoping device, presses and becomes the telescoping device including mutual nested urceolus and piston shaft, and the urceolus is fixed on the mounting bracket, and the axis of piston shaft coincides with the axis of staving, and piston shaft outer end fixed connection bung; an air pressure cavity is formed between the piston shaft and the outer barrel, an inflation pipeline penetrates through the side wall of the barrel body and is communicated with the bottom of the outer barrel, an air pressure gauge and a valve are arranged at the outer end of the inflation pipeline, and the valve is positioned on the outer side of the air pressure gauge; the barrel cover and the barrel body are automatically locked through the self-locking mechanism when being closed. The utility model discloses based on the principle that atmospheric pressure and water pressure balance counterbalance, self-closing and locking bung when reaching the settlement depth of water, accomplish the water sample collection of fixed depth of water position, avoid taking place the depth of water metering error that the slope caused in the flowing water territory haulage rope.
Description
Technical Field
The utility model relates to a water conservancy and environment science field especially relate to a mechanical type water pressure depthkeeping water sampler.
Background
The clamping cover type water sampler is a common water sample collecting tool, and needs to collect a water sample with a specific depth in actual work. The scheme is feasible in still water, but in a flowing water area, as the traction rope is in an inclined state and the inclination angles of the traction rope in water with different flow rates are different, the corresponding water depth for the flowing water area through the release length of the traction rope is inaccurate, so that sampling has errors and real and accurate data is difficult to obtain.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a, based on the principle that atmospheric pressure and water pressure balance counterbalance, self-closing and locking bung when reaching the settlement depth of water, accomplish the water sample collection of fixed depth of water position, avoid taking place the depth of water metering error that the slope caused in the flowing water territory haulage rope.
In order to realize the purpose, the utility model adopts the technical scheme that: a mechanical water pressure depth-fixed water sampler comprises a cylindrical barrel body with openings at two ends, a water-permeable mounting frame is arranged at the middle position in the barrel body, pressure-variable expansion devices are arranged on two sides of the mounting frame and comprise an outer barrel and a piston shaft which are mutually nested, the outer barrel is fixed on the mounting frame, the central axis of the piston shaft is superposed with the central axis of the barrel body, and a barrel cover is fixedly connected to the outer end of the piston shaft; an air pressure cavity is formed between the piston shaft and the outer barrel, an inflation pipeline penetrates through the side wall of the barrel body and is communicated with the bottom of the outer barrel, an air pressure gauge and a valve are arranged at the outer end of the inflation pipeline, and the valve is positioned on the outer side of the air pressure gauge; the barrel cover and the barrel body are automatically locked through the self-locking mechanism when being closed.
As a preferred technical scheme of utility model, the both ends taper of staving form the bucket neck, self-locking mechanism is in including fixed wedge couple and the articulated setting that sets up on bucket neck outer wall the bung edge and the L shape couple that matches with wedge couple are connected through the stretch cord between the corner of L shape couple and the staving outer wall.
As a preferred technical scheme of utility model, the mounting bracket includes central disc and connects the spoke between central disc and staving inner wall.
As a preferred technical scheme of utility model, the spoke is 2 at least, the centre of a circle of central disc is located on the staving axis, the spoke uses central disc to be the circumference array overall arrangement as the center.
As a preferred technical scheme of the utility model, the mounting bracket includes the disc of seting up the through-hole for the fretwork, and the through-hole uses the centre of a circle of disc to be the circumference array as the center, and the centre of a circle of disc is located on the axis of staving, the edge of disc with staving inner wall fixed connection.
As a preferred technical scheme of utility model, the through-hole is circular or oval or square.
As a preferred technical scheme of utility model, the piston shaft with set up 2 at least layers of sealing washer between the urceolus.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the utility model discloses based on the principle that atmospheric pressure and water pressure balance counterbalance, when reaching the settlement depth of water, external water pressure is greater than the atmospheric pressure in the atmospheric pressure cavity, and in the piston shaft withdrawal urceolus, drive the bung lock at the port of staving to through self-locking machine and locking bung, accomplish the water sample collection of fixed depth of water position, avoid taking place the depth of water metering error that the slope caused in the haulage rope in the flowing water territory.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a longitudinal sectional view of the whole structure of the barrel cover when the barrel cover is opened.
Fig. 2 is a longitudinal sectional view of the whole structure of the closed and locked barrel cover of the present invention.
Fig. 3 is a partially enlarged view of the self-locking mechanism of fig. 1.
FIG. 4 is an enlarged view of a portion of the inflation conduit of FIG. 1.
FIG. 5 is a top view of the first embodiment mounting bracket.
FIG. 6 is a top view of a second embodiment mounting bracket.
In the figure: 1. the device comprises a barrel body 2, a mounting frame 3, an outer barrel 4, a piston shaft 5, an air pressure cavity 6, a barrel cover 7, an inflation pipeline 8, a barometer 9, a valve 10, a barrel neck 11, a wedge-shaped hook 12, an L-shaped hook 13, an elastic rope 14, a sealing ring 21, a central disc 22, spokes 23, a disc 24 and a through hole.
Detailed Description
Detailed description of the invention
Referring to the attached drawings 1-5, the structure of the utility model comprises a barrel body 1 which is cylindrical and has two open ends, a permeable mounting frame 2 is arranged at the middle position inside the barrel body 1, pressure-variable expansion devices are arranged at the two sides of the mounting frame 2, each pressure-variable expansion device comprises an outer barrel 3 and a piston shaft 4 which are nested with each other, the outer barrel 3 is fixed on the mounting frame 2, the central axis of the piston shaft 4 coincides with the central axis of the barrel body 1, and the outer end of the piston shaft 4 is fixedly connected with a barrel cover 6; an air pressure cavity 5 is formed between the piston shaft 4 and the outer barrel 3, an inflation pipeline 7 penetrates through the side wall of the barrel body 1 and is communicated with the bottom of the outer barrel 3, an air pressure gauge 8 and a valve 9 are arranged at the outer end of the inflation pipeline 7, and the valve 9 is positioned on the outer side of the air pressure gauge 8; the barrel cover 6 and the barrel body 1 are automatically locked through a self-locking mechanism when closed.
Referring to fig. 3 separately, the two end portions of the barrel body 1 are tapered to form a barrel neck 10, the self-locking mechanism comprises a wedge-shaped hook 11 fixedly arranged on the outer wall of the barrel neck 10 and an L-shaped hook 12 hinged to the edge of the barrel cover 6 and matched with the wedge-shaped hook 11, and the corner of the L-shaped hook 12 is connected with the outer wall of the barrel body 1 through an elastic rope 13.
With separate reference to fig. 4, 3 layers of sealing rings are arranged between the piston shaft 4 and the outer cylinder 3.
Referring separately to fig. 5, the mounting frame 2 includes a central disk 21 and spokes 22 connected between the central disk 21 and the inner wall of the tub 1.
The number of the spokes 22 is 6, the center of the central disk 21 is located on the central axis of the barrel body 1, and the spokes 22 are distributed in a circumferential array by taking the central disk 21 as the center.
Detailed description of the invention
Referring to fig. 6 individually, the mounting frame 2 includes a disc 23 with a through hole 24, the through hole 24 is arranged in a circumferential array around the center of the disc 23, the center of the disc 23 is located on the central axis of the barrel 1, and the edge of the disc 23 is fixedly connected to the inner wall of the barrel 1.
The through hole 24 is oval.
The utility model discloses a theory of operation is: when the device is used, the friction force between the piston shaft 4 and the outer cylinder 3 is firstly tested, the corresponding water pressure is calculated according to the depth of a sampling water, the calculation standard is that the pressure of the water pressure in the depth of the sampling water to the piston shaft is equal to the pressure of the air pressure in the air pressure cavity 5 to the piston shaft 4 plus the friction force between the piston shaft 4 and the outer cylinder 3, then the valve 9 is opened, the barrel cover 6 is in a closed state through the self-locking mechanism, the air pressure cavity 5 is pressurized through the air pump through the air charging pipeline 7, the pressurization value can be observed through the air pressure meter 8, and the valve 9 is closed when the pressure value is pressurized to the calculated; then the L-shaped hook 12 of the self-locking mechanism is pulled outwards to be separated from the wedge-shaped hook 11, and the barrel cover 6 is pressed to change the telescopic device to be bounced off under the action of air pressure; will through the haulage rope again the utility model discloses a staving 1 is put into aquatic and constantly dives, along with dive degree of depth increases, external water pressure crescent, when reaching near the sampling depth of water position, water pressure is enough to counter the atmospheric pressure in the atmospheric pressure cavity 5, in the piston shaft 4 withdrawal urceolus 3, bung 6 is closed thereupon, L shape couple 12 and wedge couple 11 lock together, stretch cord 13 makes L shape couple 12 inwards hard under the natural state moreover, avoid L shape couple 12 to break away from wedge couple 11, accomplish the auto-lock, the sample is accomplished.
Will the utility model discloses a staving 1 pulls back the back, breaks off L shape couple 12 into two with one's hands, breaks away from wedge couple 11, can take out the water sample.
Important points to be put forward are: considering that the air pressure value is influenced by the volume of the gas, the closing state of the barrel cover 6 must be kept when the air pressure cavity 5 is pressurized before launching water, so that the state is consistent with the state when the sampling is finished during inflation and pressurization, the volume is the same, and only the actual pressure value during the sampling is the actual pressure value.
The above description is only given as an enabling solution for the present invention and not as a single limitation on the solution itself.
Claims (7)
1. The utility model provides a mechanical type water pressure depthkeeping water sampler, includes both ends opening and is the staving of cylinder, its characterized in that: a permeable mounting frame is arranged in the middle of the interior of the barrel body, pressure-variable expansion devices are arranged on two sides of the mounting frame and comprise an outer barrel and a piston shaft which are mutually nested, the outer barrel is fixed on the mounting frame, the central axis of the piston shaft is overlapped with the central axis of the barrel body, and the outer end of the piston shaft is fixedly connected with a barrel cover; an air pressure cavity is formed between the piston shaft and the outer barrel, an inflation pipeline penetrates through the side wall of the barrel body and is communicated with the bottom of the outer barrel, an air pressure gauge and a valve are arranged at the outer end of the inflation pipeline, and the valve is positioned on the outer side of the air pressure gauge; the barrel cover and the barrel body are automatically locked through the self-locking mechanism when being closed.
2. The mechanical hydraulic fixed-depth water sampler according to claim 1, characterized in that: the two end parts of the barrel body become thinner gradually to form a barrel neck, the self-locking mechanism comprises a wedge-shaped hook fixedly arranged on the outer wall of the barrel neck and an L-shaped hook which is hinged to the edge of the barrel cover and matched with the wedge-shaped hook, and the corner of the L-shaped hook is connected with the outer wall of the barrel body through an elastic rope.
3. The mechanical hydraulic fixed-depth water sampler according to claim 1, characterized in that: the mounting bracket comprises a central disc and spokes connected between the central disc and the inner wall of the barrel body.
4. The mechanical hydraulic fixed-depth water sampler according to claim 3, wherein: the number of the spokes is at least 2, the circle center of the central disk is positioned on the central axis of the barrel body, and the spokes are distributed in a circumferential array by taking the central disk as the center.
5. The mechanical hydraulic fixed-depth water sampler according to claim 1, characterized in that: the mounting frame comprises a hollow disc provided with through holes, the through holes are in a circumferential array by taking the circle center of the disc as the center, the circle center of the disc is located on the central axis of the barrel body, and the edge of the disc is fixedly connected with the inner wall of the barrel body.
6. The mechanical hydraulic fixed-depth water sampler according to claim 5, wherein: the through hole is round, oval or square.
7. The mechanical hydraulic fixed-depth water sampler according to claim 1, characterized in that: at least 2 layers of sealing rings are arranged between the piston shaft and the outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021553439.4U CN212693347U (en) | 2020-07-30 | 2020-07-30 | Mechanical water pressure fixed depth water sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021553439.4U CN212693347U (en) | 2020-07-30 | 2020-07-30 | Mechanical water pressure fixed depth water sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212693347U true CN212693347U (en) | 2021-03-12 |
Family
ID=74900361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021553439.4U Expired - Fee Related CN212693347U (en) | 2020-07-30 | 2020-07-30 | Mechanical water pressure fixed depth water sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212693347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945645A (en) * | 2021-03-17 | 2021-06-11 | 青海九零六工程勘察设计院 | Pneumatic control type groundwater depth-setting sampler |
-
2020
- 2020-07-30 CN CN202021553439.4U patent/CN212693347U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112945645A (en) * | 2021-03-17 | 2021-06-11 | 青海九零六工程勘察设计院 | Pneumatic control type groundwater depth-setting sampler |
| CN112945645B (en) * | 2021-03-17 | 2021-10-29 | 青海九零六工程勘察设计院 | Pneumatic control type groundwater depth-setting sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210312 Termination date: 20210730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |