CN218035468U - Vibrating wire type osmometer - Google Patents

Abstract

The utility model provides a vibrating wire osmometer, which comprises an osmometer main body, and a pressure bearing membrane and a first cable which are respectively arranged at the two opposite ends of the osmometer main body, wherein one end of the first cable, which is far away from the osmometer main body, is connected with a monitoring controller; and a water level detection assembly which is flush with the pressure-bearing membrane is fixedly arranged on the side wall of the osmometer main body, and the water level detection assembly is electrically connected with the monitoring controller through a second cable. Utilize the impedance of electrode in the air and the difference of electrode impedance after touching water, judge whether osmometer contacts the groundwater level for the tester can be accurate learn when the osmometer just with the horizontal contact, and then can realize setting for initial value to the osmometer in the water level pipe, solved among the prior art adopt the mode of measuring initial value at ground, receive the difference in temperature influence and lead to the inaccurate technical problem of measurement of initial value.

Description

Vibrating wire type osmometer

Technical Field

The utility model relates to an osmometer technical field, in particular to vibrating wire type osmometer.

Background

The osmometer is a pressure sensor for long-term monitoring pore water pressure and underground water level and measuring the temp of buried point synchronously, and its initial value is needed.

Because of the influence of the depth of the water level pipe, a measurer cannot judge when the osmometer just contacts with the underground water surface, so that the conventional method for taking an initial value of the osmometer usually takes the osmometer out of the water level pipe, and measures and takes the initial value on the ground after the osmometer is soaked on the ground, however, the difference between the ground temperature and the temperature in the water level pipe is more than 10 ℃, so that the actually set initial value is influenced by the temperature and is not accurate.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a vibration wire formula osmometer for solve the osmometer among the prior art and adopt the mode of getting initial value at ground measurement, receive the difference in temperature influence and lead to the inaccurate technical problem of measurement of initial value.

The utility model provides a vibrating wire type osmometer, which comprises an osmometer main body, and a pressure bearing film and a first cable which are respectively arranged at the opposite ends of the osmometer main body, wherein one end of the first cable, which is far away from the osmometer main body, is connected with a monitoring controller;

and a water level detection assembly which is flush with the pressure-bearing membrane is fixedly arranged on the side wall of the osmometer main body, and the water level detection assembly is electrically connected with the monitoring controller through a second cable.

Above-mentioned vibrating wire formula osmometer, utilize the difference of the impedance of electrode in the air and electrode touch impedance after the water, judge whether osmometer contacts the groundwater level, specifically, put into the water level pipe with the osmometer step by step, when not touching water, the resistance is opened a way between the electrode, be greater than 20M omega, and after the electrode touched water, the inter-electrode resistance is less than 2M omega, make the tester can be accurate learn when the osmometer just with horizontal contact, and then can realize setting for initial value to the osmometer in the water level pipe, the mode of adopting to measure initial value at ground among the prior art has been solved, receive the difference in temperature and influence and lead to the inaccurate technical problem of measurement of initial value.

Further, the vibrating wire osmometer, wherein, water level detection subassembly includes the shell and locates the water sensing electrode in the shell, the one end of water sensing electrode is followed expose in the shell, other end electric connection the second cable.

Further, the vibrating wire osmometer, wherein, the sensing electrode with the junction of shell is equipped with waterproof packing ring.

Further, the vibration wire type osmometer, wherein, the vibration wire type osmometer still includes solid locking structure and lifting rod, lifting rod passes through solid locking structure can dismantle the connection osmometer main part, lifting rod's surface is equipped with the scale mark.

Further, vibration wire formula osmometer, wherein, the solid locking structure is including locating location portion in the osmometer main part, and locate be used for on the drag link with the connection structure of location portion cooperation locking, location portion include the arc and certainly one side of arc outwards extends and is formed with two joint boards, two be formed with between the joint board and be used for dodging the opening of second cable, two be equipped with corresponding bolt hole on the joint board respectively, connection structure is including connecting the dop, locating connect dop one side with the junction box that the opening corresponds, slide and locate the bolt pole of the relative both sides of junction box and locating be used for controlling in the junction box the flexible drive structure of bolt pole.

Further, the vibrating wire osmometer, wherein, two the adjacent one end of bolt pole is equipped with vertical board respectively, vertical board with be equipped with first spring between the inside wall of connecting box, drive structure locates including sliding slide in the connecting box, one side of slide with be equipped with the second spring between the inside wall of connecting box, the downward protrusion of opposite side is formed with an extrusion head, the extrusion head is located two between the vertical board, the one end of carrying the pull rod is equipped with the through-hole that runs through from the other end, wear to be equipped with the connection in the through-hole the stay cord of slide.

Further, the vibrating wire osmometer, wherein, the upper end face of vertical board is equipped with inclined guide part.

Further, the vibrating wire osmometer, wherein, the extrusion head's longitudinal section is triangle-shaped.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the measuring state of the middle vibrating wire type osmometer in the water level pipe;

FIG. 2 is a schematic view of the structure of the middle water level detecting assembly of the present invention;

FIG. 3 is a perspective view of the medium vibrating wire osmometer of the present invention;

FIG. 4 is an enlarged partial view of the position A in FIG. 3;

fig. 5 is a schematic view of a specific structure of the positioning portion of the present invention;

fig. 6 is a schematic structural diagram of the connection structure of the present invention;

the main components in the figure are illustrated by symbols:

10-osmometer main body, 11-pressure bearing membrane, 12-first cable, 21-water level detection component, 211-shell, 212-water sensing electrode, 22-second cable, 30-locking structure, 311-arc plate, 312-clamping plate, 313-bolt hole, 321-connecting clamping head, 322-connecting box, 323-bolt rod, 324-vertical plate, 325-first spring, 326-sliding plate, 327-second spring, 328-extrusion head, 329-pull rope, 40-lifting rod and 50-guide part.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and similar expressions are used for the purpose of illustration only and do not indicate or imply that the apparatus or components referred to must be oriented, constructed and operated in a particular orientation and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6, the vibrating wire type osmometer of the present invention includes an osmometer main body 10, and a pressure-bearing membrane 11 and a first cable 12 respectively disposed at two opposite ends of the osmometer main body 10, wherein one end of the first cable 12 far away from the osmometer main body 10 is connected to a monitoring controller (not shown);

the lateral wall of osmometer main part 10 sets firmly with water level detection subassembly 21 that pressure-bearing membrane 11 flushes, water level detection subassembly 21 passes through second cable 22 electric connection monitor controller.

Specifically, the water level detecting assembly 21 includes a housing 211 and a sensing electrode 212 disposed in the housing 211, one end of the sensing electrode 212 is exposed from the housing 211, and the other end of the sensing electrode 212 is electrically connected to the second cable 22, wherein a waterproof gasket (not shown) is disposed at a joint between the sensing electrode 212 and the housing 211, and the waterproof gasket is used for preventing underground water from entering the housing 211 to damage electronic components inside the housing 211.

It can be understood that the height of the sensing electrode 212 is flush with the plane of the pressure-bearing film 11, which can ensure the authenticity of the pressure-bearing film 11 in contact with water. And judging by using the difference between the impedance of the electrode in the air and the impedance of the electrode after contacting water. During specific measurement, the osmometer is gradually placed into the water level pipe, when the osmometer does not touch water, the resistance between the electrodes is opened, the resistance is far larger than 20M omega, when the resistance jumps and is lower than 2M omega, the osmometer is indicated to just contact with the water surface in the water level pipe, at the moment, the osmometer is placed for 15min to enable the temperature of the osmometer to reach balance, then initial value measurement is carried out, and the accuracy of the initial value measurement is greatly improved.

Further, the vibrating wire type osmometer further comprises a locking structure 30 and a lifting rod 40, the lifting rod 40 is detachably connected with the osmometer main body 10 through the locking structure 30, and scale marks (not shown) are arranged on the outer surface of the lifting rod 40 so that a tester can obtain the descending depth of the osmometer in real time. It can understand, one end through at osmometer main part 10 sets up one and carries pull rod 40, make tester can hand and carry pull rod 40 and progressively put into the water level pipe with the osmometer, in order to promote the stationarity that the osmometer descends, avoid taking place to rock under first cable 12's effect, ensure that osmometer main part 10 can accurately reach the surface of water position, in addition, this carry pull rod 40 still can avoid mud in the water level pipe can be to the osmometer of transferring and its cable conductor production buoyancy, lead to osmometer when burying underground probably can not reach the settlement depth.

Specifically, the fixing and locking structure 30 includes a positioning portion disposed on the osmometer main body 10, and a connecting structure disposed on the lifting rod 40 and used for being locked with the positioning portion in a matching manner, the positioning portion includes an arc-shaped plate 311 and two clamping plates 312 extending outward from one side of the arc-shaped plate 311, an opening for avoiding the second cable 22 is formed between the two clamping plates 312, corresponding bolt holes 313 are respectively disposed on the two clamping plates 312, the connecting structure includes a connecting chuck 321, a connecting box 322 disposed on one side of the connecting chuck 321 and corresponding to the opening, bolt rods 323 slidably disposed on two opposite sides of the connecting box 322, and a driving structure disposed in the connecting box 322 and used for controlling the bolt rods 323 to stretch and retract.

The driving structure comprises a sliding plate 326 which is slidably arranged in the connecting box 322, a second spring 327 is arranged between one side of the sliding plate 326 and the inner side wall of the connecting box 322, the other side of the sliding plate is protruded downwards to form an extrusion head 328, the extrusion head 328 is positioned between the two vertical plates 324, a through hole which penetrates through the other end of one end of the lifting rod 40 is arranged at the other end of the lifting rod, and a pull rope 329 which is connected with the sliding plate 326 is arranged in the through hole in a penetrating manner.

Specifically, referring to fig. 4, which is a schematic view illustrating a state in which the positioning portion and the connecting structure are locked in a matching manner, in the drawing, the first spring 325 is in a contracted state, and the second spring 327 is in an expanded state, it can be understood that the sliding plate 326 drives the extrusion head 328 below the sliding plate to push the two vertical plates 324 under the elastic force of the second spring 327, so that the two pin rods 323 respectively extend outward and are inserted into the corresponding pin holes 313, and the positioning portion and the connecting structure are locked in a matching manner; when the positioning part and the connecting structure need to be detached, only the pulling rope 329 needs to be pulled, so that the sliding plate 326 is lifted, the pressing head 328 does not press the two vertical plates 324 any more, the latch rod 323 automatically resets under the action of the first spring 325, and the separation between the positioning part and the connecting structure is realized.

Further, the extrusion head 328 has a triangular longitudinal section, a tip portion of the triangle corresponds to a gap between the two vertical plates 324, and the upper end surfaces of the vertical plates 324 are provided with inclined guides 50. It will be appreciated that when the two vertical plates 324 are engaged with each other, the two guides 50 on the end surfaces thereof combine to form a V-shaped groove so that the pressing head 328 is smoothly inserted between the two vertical plates 324 to achieve the outward protrusion of the latch lever 323.

To sum up, the utility model discloses vibrating wire formula osmometer in the middle of the above-mentioned embodiment, utilize the impedance of electrode in the air and the difference of electrode after touching water, judge whether the osmometer contacts the groundwater surface, specifically, gradually put into the water level pipe with the osmometer, when not touching water, resistance between the electrode is opened a way, be greater than 20M omega, and after the electrode touched water, electrode resistance is less than 2M omega, make tester can be accurate learn when the osmometer just with the horizontal contact, and then can realize setting for initial value to the osmometer in the water level pipe, the adoption is got the mode of initial value at ground measurement among the prior art, influenced by the difference in temperature and lead to the inaccurate technical problem of measurement of initial value.

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 do not necessarily 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.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. A vibrating wire type osmometer is characterized by comprising an osmometer main body, a pressure bearing membrane and a first cable, wherein the pressure bearing membrane and the first cable are respectively arranged at two opposite ends of the osmometer main body;

a water level detection assembly flush with the pressure-bearing membrane is fixedly arranged on the side wall of the osmometer main body, and the water level detection assembly is electrically connected with the monitoring controller through a second cable;

the vibrating wire type osmometer also comprises a fixed locking structure and a lifting rod, the lifting rod is detachably connected with the osmometer main body through the fixed locking structure, and the outer surface of the lifting rod is provided with scale marks;

the fixing and locking structure comprises a positioning portion arranged on the osmometer main body and a connecting structure arranged on the lifting rod and used for being matched and locked with the positioning portion, wherein the positioning portion comprises an arc-shaped plate and two clamping plates, one side of the arc-shaped plate extends outwards, an opening used for avoiding the second cable is formed between the two clamping plates, the two clamping plates are respectively provided with corresponding bolt holes, and the connecting structure comprises a connecting chuck, a connecting box arranged on one side of the connecting chuck and corresponding to the opening, bolt rods arranged on two opposite sides of the connecting box in a sliding mode and a driving structure arranged in the connecting box and used for controlling the bolt rods to stretch and retract.

2. The vibrating wire osmometer of claim 1, wherein the water level detection assembly comprises a housing and a water sensing electrode disposed in the housing, one end of the water sensing electrode is exposed from the housing, and the other end of the water sensing electrode is electrically connected to the second cable.

3. The osmometer of claim 2, wherein the sensing electrode is provided with a waterproof gasket at the junction with the housing.

4. The osmometer of the vibrating wire type according to claim 1, wherein the adjacent ends of the two pin rods are respectively provided with a vertical plate, a first spring is arranged between the vertical plate and the inner side wall of the connecting box, the driving structure comprises a sliding plate slidably arranged in the connecting box, a second spring is arranged between one side of the sliding plate and the inner side wall of the connecting box, the other side of the sliding plate protrudes downwards to form an extrusion head, the extrusion head is positioned between the two vertical plates, one end of the lifting rod is provided with a through hole penetrating from the other end, and a pull rope connected with the sliding plate is arranged in the through hole in a penetrating manner.

5. The osmometer of claim 4, wherein the vertical plates are provided at their upper end surfaces with inclined guide portions.

6. The vibrating wire osmometer of claim 4, wherein the extrusion head is triangular in longitudinal cross-section.

Images