CN215565905U - Portable electronic well depth instrument - Google Patents

Abstract

The utility model discloses a portable electronic well depth instrument, which comprises a probe, a cable with scales, a controller and an alarm, wherein the probe is arranged on the cable; the probe comprises a main body, a probe, a sliding shaft, a heavy hammer connected with the sliding shaft, a first sealing element and a second sealing element; the probe and the sliding shaft are arranged on the main body, the sliding shaft can slide up and down, and the sliding shaft is abutted against the probe when sliding upwards to a limit position; the probe is connected with the controller through a cable, and the controller sends an alarm instruction to the alarm when the probe is abutted against the sliding shaft. The main body comprises an upper shell part and a lower shell part which are connected through screw threads. The first sealing element and the second sealing element seal the inner cavity of the upper shell part, and the connection position of the sliding shaft and the probe is positioned in the inner cavity of the upper shell part. Be equipped with the through-hole on the lateral wall of lower shell portion, water can get into lower shell portion through the through-hole. Several parts of the probe are arranged as cones. The portable electronic well depth instrument has the advantages of small error detection probability, high measurement accuracy, small short circuit risk, small water inlet and outlet resistance, self-cleaning function, convenience in replacement of easily-damaged parts and the like.

Description

Portable electronic well depth instrument

Technical Field

The utility model relates to the technical field of measuring equipment, in particular to a portable electronic depth logging instrument.

Background

In the underground water monitoring process, departments such as water conservancy and hydrology and geological environment monitoring need to measure the depth of a monitoring well.

The traditional measuring method is simple and crude, namely, a rope is used for binding stones, the stones are sunk into a well, whether the stones touch the bottom of the well or not is sensed by feeling, and then the length of the rope is used for obtaining the depth of the well. The measurement error of this measurement method is very large.

Another measurement method is an acoustic measurement method, i.e., measuring the well depth with an acoustic measurement instrument. Theoretically, this measurement method has high accuracy, but, in practice, the measurement accuracy is not high. The reason is that in practical application, sound waves easily touch the well wall, so that the sound waves are mistakenly considered to touch the well bottom, and particularly for a well with a large well depth and a thin well mouth, the probability that the sound waves touch the well wall is very high.

In view of this, how to accurately measure the well depth is a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a portable electronic depth finder, which comprises a probe, a cable with scales, a controller and an alarm, wherein the probe is arranged on the portable electronic depth finder; the probe comprises a main body, a detection element, a contact element and a heavy hammer connected with the contact element; the contact element can slide up and down relative to the main body, and the contact element abuts against the detection element when sliding upwards to the limit position; the detection element is connected with the controller through the cable, an alarm program is arranged in the controller, and the alarm program enables the controller to send an alarm instruction to the alarm when the detection element and the contact element are abutted.

In one embodiment, the main body has an inner cavity, the contact element is a sliding shaft, the detecting element is a probe, the probe is fixedly installed in the inner cavity of the main body, the upper end of the main body is provided with a wire passing hole for the cable to pass through, the lower end of the main body is provided with a shaft hole adapted to the sliding shaft, the sliding shaft is installed in the shaft hole, the upper end of the sliding shaft extends into the inner cavity of the main body, and the lower end of the sliding shaft extends out of the inner cavity of the main body and is connected with the heavy hammer.

In one embodiment, the probe further comprises a first seal and a second seal; the first sealing element is arranged in the inner cavity of the main body and divides the inner cavity of the main body into an upper chamber and a lower chamber which are not communicated with each other; the second sealing element seals the wire passing hole, so that the upper cavity is a closed cavity; the first sealing element is provided with a jack, the probe is tightly inserted into the jack, the upper end of the probe extends into the upper cavity and is connected with the cable, and the lower end of the probe extends into the lower cavity and is abutted against the sliding shaft.

In one embodiment, the lower end of the probe is bent into a horizontal state.

In one embodiment, the side wall of the lower chamber is provided with a through hole, and the probe further comprises a filter screen for shielding the through hole.

In an embodiment, the probe further comprises a fixing sleeve for fixing the filter screen, the peripheral surface of the fixing sleeve is matched with the side wall of the lower cavity, the fixing sleeve is installed in the lower cavity, a through hole is formed in the position, corresponding to the through hole, of the fixing sleeve, and the filter screen is clamped between the peripheral surface of the fixing sleeve and the side wall of the lower cavity.

In one embodiment, the main body includes an upper housing portion and a lower housing portion, a lower end of the upper housing portion and an upper end of the lower housing portion are detachably coupled together, an inner cavity of the upper housing portion forms the upper chamber, an inner cavity of the lower housing portion forms the lower chamber, and the first sealing member is installed at a lower opening of the upper chamber.

In one embodiment, the main body further includes a cap portion detachably coupled to an upper end of the upper housing portion, the wire passing hole is partially formed in the upper housing portion and partially formed in the cap portion, and the second sealing member is a sealing cap closely fitted around an outer circumference of the cap portion.

In one embodiment, the upper end of the slide shaft, the upper end of the weight, and the upper end of the seal cap are all configured as cones having a smaller top and a larger bottom, and the lower end of the main body is configured as a cone having a larger top and a smaller bottom.

In one embodiment, the portable electronic depth finder further comprises a housing, a spool and a control handle for rotating the spool, the cable is wound on the spool, the controller and the alarm are all mounted in the housing, and the housing is further provided with a slot for accommodating the probe.

According to the portable electronic well depth instrument provided by the utility model, in the measuring process, the probe basically keeps vertically falling under the action of self weight, so that the probe is not easy to touch a well wall, the misdetection probability is small, and the probe can reach a real well bottom, so that the measuring accuracy is high and the deviation is small.

In addition, through setting up first sealing member and second sealing member, realized detecting element and cable's the hookup location sealed, reduced hookup location and touched the risk of water short circuit.

In addition, through the through holes arranged on the side wall of the lower cavity, water can enter the lower cavity, so that the weight of the probe after entering the water can be increased, and the probe can be more easily lowered to the bottom of the well; on the other hand, water entering the lower chamber can apply downward pressure to the sliding shaft, so that the contact element and the detection element can be further ensured to be kept in a separated state when the probe does not touch the bottom; on the other hand, water can form the torrent when flowing through the through-hole, can play the washing effect of scouring to the slide-shaft to can further ensure the good contact of slide-shaft and probe.

In addition, the main body of the probe is provided with a split structure of an upper shell part and a lower shell part, so that the wearing parts are easy to install and replace.

In addition, several parts of the probe are arranged into cones, so that the probe has small water inlet and outlet resistance, the bearing of the cable is small, the cable can be prevented from being broken, and silt and accumulated water attached to the probe can automatically flow down along the side wall of the cone in the water outlet process of the probe, so that the probe has an automatic cleaning function.

Drawings

FIG. 1 is a cross-sectional view of one embodiment of a portable electronic depth finder of the present invention in contact with the bottom of a well;

FIG. 2 is a cross-sectional view of the portable electronic depth finder of FIG. 1 in a non-contact downhole condition;

FIG. 3 is a perspective view of the lower shell portion of FIG. 1;

fig. 4 is a perspective view of the harness of fig. 1.

FIG. 5 is a front view of the first seal of FIG. 1;

fig. 6 is a bottom view of the first seal and probe in an assembled state.

The reference numerals are explained below:

100 probes;

11 main body, 111 cap part, 112 upper shell part, 113 lower shell part, 113a through hole, 114 line through hole, 115 shaft hole, A upper chamber and B lower chamber

12, a probe;

13 sliding shaft, 13a limit step surface;

14 weight dropper;

15 a first seal;

16 a second seal;

17, a filter screen;

18 fixation sleeves, 18a via holes;

200 cables.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and the detailed description.

As shown in FIG. 1, the present invention provides a portable electronic depth tool comprising a probe 100 and a cable 200. A controller and an alarm (not shown in the figures) are also included. The controller is internally provided with an alarm program. The alarm and the controller are in communication connection, and specifically, the alarm and the controller can be in wired connection or wireless connection.

In addition, a housing, a spool, and a handle (not shown) may be provided, the spool, the controller, and the alarm may be mounted in the housing, and a slot may be provided in the housing to receive the probe 100. The cable 200 is wound on the winding shaft, and the cable 200 is wound and unwound by rotating the control handle.

The probe 100 includes a detecting member (12 in the figure), a contact member (13 in the figure), and a weight 14. Both the probe element and the contact element are electrically conductive. The detector elements are connected to the circuit board of the controller by cables 200. The contact element can slide up and down, and the contact element is abutted against and separated from the detection element through the up-and-down sliding. As shown in fig. 1, the contact element will interfere with the detector element when it is slid upwards to the extreme position. As shown in FIG. 2, the weight 14 is connected to the contact member, and when the probe 100 is lifted, the contact member slides downward by the gravity of the weight 14, thereby separating from the probe member.

When the contact element collides with the detection element, the detection element is conducted, the detection element transmits an electric signal to the controller after being conducted, the controller sends an alarm instruction to the alarm in response to the electric signal, and the alarm gives an alarm in response to the alarm instruction, specifically, the alarm can be a sound alarm, a light alarm, a picture alarm, a text alarm and the like.

The cable 200 is provided with scales, the scales can be marked on the cable 200 by a laser etching technology, and the colors of the scales are preferably obviously different from the colors of the cable 200 so as to facilitate reading. The cable 200 serves both as an electrical connection and a measurement.

When the device is used, the probe 100 is lowered into a well to be tested by using the cable 200, when the probe 100 does not reach the bottom of the well, the contact element is kept in a separated state from the detection element under the action of gravity of the heavy hammer 14, when the probe 100 reaches the bottom of the well, the contact element touches the ground of the bottom of the well and receives upward thrust from the ground of the bottom of the well, the contact element slides upwards under the action of the thrust until the contact element is collided, after the contact, the alarm gives an alarm to remind a worker that the probe 100 has touched the bottom, then the scale of the position, corresponding to the well head, on the cable 200 is read, and the reading is the well depth.

It should be noted that, during the process of lowering the probe 100, the probe 100 will be subjected to water resistance and need to reach the true bottom of the well through silt and sand, so when the weight 14 is designed to be weighted, the water resistance and the sand resistance should be considered, so that the gravity of the weight 14 is greater than the sum of the water resistance and the sand resistance, and thus the contact element and the detecting element can be kept in a separated state when the probe 100 is not in contact with the bottom. At the same time, the load-bearing capacity of the cable 200 should also be considered.

By applying the portable electronic depth finder, the probe 100 basically keeps falling vertically under the action of self weight in the measuring process, so that the well wall is not easy to touch, the misdetection probability is small, and the probe 100 can reach the true well bottom, so that the measuring accuracy is high and the deviation is small.

The structure of the probe 100 in the illustrated embodiment is described in detail below.

In the figure, the detecting element is provided with a fine probe 12, so that mud and sand are not easy to accumulate, and good contact between the detecting element and the contact element is ensured. The contact member is provided as a slide shaft 13, which can be relatively easily assembled to the main body 11. Of course, in practical implementation, the shape of the detecting element is not limited to a needle shape, and the shape of the contact element is not limited to a shaft shape.

The probe 100 further includes a body 11, the body 11 having an internal cavity. The probe 12 is fixedly mounted in the inner cavity of the body 11. The upper end of the main body 11 is provided with a wire passing hole 114 through which the cable 200 passes. The lower end of the main body 11 is provided with a shaft hole 115 matched with the slide shaft 13, the slide shaft 13 is installed in the shaft hole 115, the upper end of the slide shaft 13 extends into the inner cavity of the main body 11, and the lower end extends out of the inner cavity of the main body 11 to be connected with the heavy hammer 14. The slide shaft 13 is provided with a limit step surface 13a, and when the slide shaft 13 slides downwards to a limit position, the limit step surface 13a is abutted against the bottom wall of the main body 11, so that the slide shaft 13 cannot be separated from the main body 11.

In the figure, the slide shaft 13 and the weight 14 are provided separately and are coupled together by a screw pair, but in practice, they may be detachably coupled or they may be provided as an integral structure.

The probe head 100 may further include a first seal 15 and a second seal 16, the first seal 15 and the second seal 16 being used to seal the connection location of the probe 12 to the cable 200. In detail, the first sealing member 15 is installed in the inner cavity of the body 11 to divide the inner cavity of the body 11 into an upper chamber a and a lower chamber B which are not communicated with each other. Meanwhile, the second sealing member 16 seals the wire passing hole 114 of the main body 11, so that the upper chamber a becomes a closed chamber. The first seal 15 is provided with a socket (as will be understood in connection with fig. 6) in which the probe 12 is tightly inserted, the upper end of the probe 12 extends into the upper chamber a to be connected to the cable 200, and the connection position of the probe 12 to the cable 200 is sealed in the upper chamber a. The connection position of the probe 12 and the cable 200 is sealed, so that the problem of short circuit caused by contact of the connection position and water can be avoided.

The lower end of the probe 12 protrudes into the lower chamber B, and the upper end of the slide shaft 13 also protrudes into the lower chamber B so as to interfere with each other. In the figure, the lower end of the probe 12 is bent to be horizontal, so that the contact area between the probe 12 and the slide shaft 13 can be increased, and smooth conduction of the circuit can be ensured. In the figure, four probes 12 are provided, and the four probes 12 are respectively inserted into four insertion holes of the first sealing member 15, which needs to be described.

The sidewall of the lower chamber B may be provided with through holes 113a (as understood in conjunction with fig. 3), and preferably a plurality of through holes 113a are provided at regular intervals along the circumferential direction of the sidewall. When the probe 100 is lowered, water can enter the lower chamber B through the through hole 113 a. Meanwhile, the through hole 113a is blocked by the screen 17 to block the sand from entering the lower chamber B. By the arrangement, on one hand, the weight of the probe 100 after entering water can be increased, so that the probe 100 can be more easily lowered to the bottom of a well; on the other hand, water entering the lower chamber B exerts downward pressure on the sliding shaft 13, so that the contact element and the detection element can be further ensured to be kept in a separated state when the probe 100 is not bottomed; on the other hand, when water flows through the through hole 113a, a turbulent flow is formed, which performs a washing function on the slide shaft 13, thereby further ensuring good contact between the slide shaft 13 and the probe 12.

The screen 17 may be secured by a retaining sleeve 18. Specifically, the fixing sleeve 18 is mounted in the lower chamber B, and the outer peripheral surface of the fixing sleeve 18 is fitted to the side wall of the lower chamber B (that is, the two are substantially identical in shape and size). The fixing sleeve 18 is provided with a through hole 18a (understood in conjunction with fig. 3) for passing water therethrough at a position corresponding to the side wall through hole 113a of the lower chamber B. The screen 17 is sandwiched between the outer peripheral surface of the fixed sleeve 18 and the side wall of the lower chamber B. The fixing mode is reliable and convenient to assemble, and the filter screen 17 can be fixed in other modes in practical implementation.

The main body 11 may be provided in a separate body structure to facilitate installation and replacement of wearing parts such as the first seal 15, the probe 12, the slide shaft 13, etc. Specifically, the main body 11 may include a cap portion 111, an upper case portion 112 and a lower case portion 113, the cap portion 111 may be detachably coupled to an upper end of the upper case portion 112, a lower end of the upper case portion 112 may be detachably coupled to an upper end of the lower case portion 113, an inner cavity of the upper case portion 112 may be an upper chamber a, an inner cavity of the lower case portion 113 may be a lower chamber B, and the first sealing member 15 may be detachably coupled to a lower chamber opening of the upper chamber a, or the first sealing member 15 may be detachably coupled to a lower chamber opening of the upper case portion 112.

In the figures, the cap portion 111 and the upper portion 112, the upper portion 112 and the first sealing member 15, and the upper portion 112 and the lower portion 113 are connected together by a screw pair, so that the implementation is convenient, and of course, other detachable connection manners, such as a snap-fit connection, may be adopted in practical implementation. The outer circumference of the cap portion 111 may be provided with a wrench groove for an assembling operation.

In the figure, the wire through hole 114 is formed partially at the upper end of the upper housing part 112 and partially at the cap part 111. In the figure, the second sealing member 16 is a sealing cap having a certain elasticity, and the sealing cap is tightly fitted on the outer circumference of the cap portion 111, so that water cannot enter the upper chamber a from the wire passing hole 114. It should be noted that although the sealing cap is also provided with a hole for passing the cable 200, the wall of the hole can be in close contact with the cable 200 passing therethrough under the action of its own elasticity, so that water cannot enter the upper chamber a from the hole. The sealing structure is reliable in sealing and convenient to assemble.

In the figure, the lower end of the main body 11 (more specifically, the lower end of the lower case portion 113) is formed in a tapered shape having a large upper portion and a small lower portion, so that the water entry resistance of the probe 100 is small.

In the figure, the upper end of the slide shaft 13 is set to be a cone with a small top and a large bottom, and the upper end of the weight 14 is set to be a cone with a small top and a large bottom. The upper end of the sealing cap (16 in the figure) is set to be a cone with a small upper part and a big lower part. Therefore, on one hand, when the probe 100 is lifted up from water, the resistance is small, the bearing of the cable 200 is small, and the cable 200 can be prevented from being broken; on the other hand, when the probe 100 is lifted up from the water, the silt and the accumulated water attached to the probe 100 can automatically flow down along the side wall of the cone, thereby having an automatic cleaning function.

Specifically, the body 11 and the weight 14 of the probe 100 may be made of a material that is resistant to abrasion, corrosion, and rust, such as stainless steel. The first seal 15 and the second seal 16 of the probe 100 may be made of a material having certain elasticity and corrosion resistance, such as fluorine.

The portable electronic depth finder provided by the present invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. The portable electronic depth logging instrument is characterized by comprising a probe (100), a cable (200) with scales, a controller and an alarm; the probe (100) comprises a main body (11), a detecting element, a contact element and a heavy hammer (14) connected with the contact element; the detection element and the contact element are both arranged on the main body (11), the contact element can slide up and down relative to the main body (11), and the contact element is abutted against the detection element when sliding upwards to the limit position; the detection element is connected with the controller through the cable (200), an alarm program is arranged in the controller, and the alarm program enables the controller to send an alarm instruction to the alarm when the detection element and the contact element are abutted.

2. The portable electronic well depth instrument as claimed in claim 1, wherein the main body (11) has an inner cavity, the contact element is a sliding shaft (13), the detecting element is a probe (12), the probe (12) is fixedly installed in the inner cavity of the main body (11), the upper end of the main body (11) is provided with a wire passing hole (114) for the cable (200) to pass through, the lower end of the main body (11) is provided with a shaft hole (115) adapted to the sliding shaft (13), the sliding shaft (13) is installed in the shaft hole (115), the upper end of the sliding shaft (13) extends into the inner cavity of the main body (11), and the lower end of the sliding shaft extends out of the inner cavity of the main body (11) to be connected with the weight (14).

3. The portable electronic depth finder of claim 2, wherein the probe (100) further comprises a first seal (15) and a second seal (16); the first sealing element (15) is arranged in the inner cavity of the main body (11) to divide the inner cavity of the main body (11) into an upper chamber (A) and a lower chamber (B) which are not communicated with each other; the second sealing piece (16) seals the wire through hole (114) to ensure that the upper chamber (A) is a closed chamber; the first sealing element (15) is provided with a jack, the probe (12) is tightly inserted into the jack, the upper end of the probe (12) extends into the upper chamber (A) and is connected with the cable (200), and the lower end of the probe (12) extends into the lower chamber (B) and is abutted against the sliding shaft (13).

4. A portable electronic depth finder according to claim 3, wherein the lower end of the probe (12) is bent into a horizontal position.

5. A portable electronic depth of well gauge according to claim 3, wherein a through hole (113a) is provided in the side wall of the lower chamber (B), the probe (100) further comprising a screen (17) covering the through hole (113 a).

6. The portable electronic well depth gauge according to claim 5, wherein the probe (100) further comprises a fixing sleeve (18) for fixing the filter screen (17), the outer circumferential surface of the fixing sleeve (18) is fitted with the side wall of the lower chamber (B), the fixing sleeve (18) is installed in the lower chamber (B), a through hole (18a) is formed in the position of the fixing sleeve (18) corresponding to the through hole (113a), and the filter screen (17) is clamped between the outer circumferential surface of the fixing sleeve (18) and the side wall of the lower chamber (B).

7. A portable electronic depth of well gauge according to any of claims 3 to 6, wherein the body (11) comprises an upper housing portion (112) and a lower housing portion (113), the lower end of the upper housing portion (112) being detachably connected to the upper end of the lower housing portion (113), the inner cavity of the upper housing portion (112) forming the upper chamber (A), the inner cavity of the lower housing portion (113) forming the lower chamber (B), the first sealing member (15) being mounted at the lower opening of the upper chamber (A).

8. The portable electronic depth finder of claim 7, wherein the main body (11) further comprises a cap portion (111), the cap portion (111) is detachably connected to an upper end of the upper housing portion (112), the wire passing hole (114) is formed partially in the upper housing portion (112) and partially in the cap portion (111), and the second sealing member (16) is a sealing cap tightly fitted around an outer circumference of the cap portion (111).

9. The portable electronic well depth gauge according to claim 8, wherein the upper end of the sliding shaft (13), the upper end of the weight (14) and the upper end of the sealing cap are all arranged as cones with a smaller top and a smaller bottom, and the lower end of the main body (11) is arranged as a cone with a larger top and a smaller bottom.

10. The portable electronic depth finder according to any of claims 1-6, further comprising a housing, a spool on which the cable (200) is wound, and a handle for rotating the spool, wherein the spool, the controller, and the alarm are all mounted in the housing, and wherein the housing further comprises a slot for receiving the probe (100).

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