Soil moisture tensiometer

Abstract

The utility model discloses a soil moisture tensiometer, which belongs to the technical field of soil moisture tensiometers, and comprises a glass tube, a fixing component is arranged on the peripheral side of the bottom of the glass tube, a plug is arranged at the top end of a pressure monitoring device, a mounting sleeve is arranged below the plug, and the mounting sleeve is fixedly connected to the outer side of the top of the glass tube. A water supplementing and exhausting assembly is arranged on one side of the mounting sleeve. According to the water purifier, a worker manually presses a circular plate to drive a fixing rod and a piston to move, purified water stored in a fixing barrel is conveyed into a connecting block, and when the pressure of the connecting block is larger than the elastic force of a spring, water flow of the connecting block can drive a ball head block, a side block and a tooth block to move; at the moment, the liquid is conveyed into the glass tube through the stepped through hole and the one-way water inlet so as to perform water replenishing treatment on the interior of the glass tube, so that the mounting and dismounting work of the plug is reduced, the influence on the sealing performance of the plug after a long time is prevented, and the influence on the monitoring precision of a product is further prevented.

Description

TECHNICAL FIELD

[0001] The utility model belongs to soil moisture tension meter technical field especially relates to a soil moisture tension meter. BACKGROUND

[0002] Soil tension meter is the equipment that can directly and accurately monitor soil moisture content, it is from energy angle with soil water potential to accurately reflect soil water content to crop effective absorption and utilization degree, and it is important index for studying soil moisture movement and crop drought characterization.

[0003] Such as Chinese patent document (CN204705576U) a kind of soil moisture tension meter, including test tube, water is loaded in test tube, the bottom of test tube is provided with ceramic probe, the top of test tube is water inlet, water inlet is provided with sealing cover, sealing cover is sealed and locked with water inlet, the upper end of test tube is provided with vacuum dial, the air inlet of vacuum dial is communicated with test tube, vacuum dial is provided with pointer and display area, the display area on vacuum dial is made of four display units, four display units are four fan-shaped structures concentrically arranged with the center point of vacuum dial as center, four display units are marked with different colors respectively, one end of pointer is rotationally connected with the center point of vacuum dial, the other end of pointer points to a display unit in display area, so that the position pointed by pointer can be seen at a glance during testing, so as to know the moisture condition of soil, structure is simple, easy to operate, save time and effort, improve testing efficiency, it is convenient for farmers and technical personnel to apply, but the product needs to be opened during use Periodic water replenishment of internal components, long time will cause impact to its sealing performance, in turn, will cause impact to the monitoring accuracy of product, therefore, needs improvement. UTILITY MODEL CONTENTS

[0004] The utility model aims at: in order to solve the prior art in the process of using, need to open sealing cover to carry out periodic water replenishment of internal components, long time will cause impact to its sealing performance, in turn, will cause impact to the monitoring accuracy of product, and propose a kind of soil moisture tension meter.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of soil moisture tension meter, including glass tube, the bottom outer circumferential side of glass tube is provided with fixed component, the top of glass tube is provided with plug, the plug is provided with mounting sleeve below, mounting sleeve is fixedly connected in the top outer side of glass tube, and water replenishment exhaust component is arranged in one side of mounting sleeve;

[0007] The water replenishing exhaust assembly comprises a fixed cylinder, which is arranged inside the mounting sleeve and is connected with the glass tube through the mounting sleeve on one side, a piston is slidingly sealed inside one side of the fixed cylinder, a connecting block is arranged on one side of the piston, a stepped through hole is formed in the connecting block, a spring is arranged on one side of the stepped through hole, the spring is fixedly connected with the inner wall of the connecting block on one side, a ball head block is fixedly connected with the spring on the other side, side blocks are fixedly connected with the ball head block on both sides, a tooth block is fixedly connected with one side of the side block, and an installation block and a trigger wheel are arranged on the other side of the tooth block.

[0008] Further description of the above technical scheme is as follows:

[0009] The installation block is fixedly connected with the inner wall of the connecting block on one side, the tooth block is slidingly connected inside the installation block, a spring plate is fixedly connected with the installation block on one side, and a trigger plate is fixedly connected with the spring plate on the other side.

[0010] Further description of the above technical scheme is as follows:

[0011] The trigger plate is slidingly sealed inside the installation block, the trigger plate is fixedly connected with the trigger wheel on the other side, and a one-way water inlet is formed at the joint of the mounting sleeve and the glass tube on one side.

[0012] Further description of the above technical scheme is as follows:

[0013] The trigger plate is provided with a trigger button on the side opposite to the spring plate, the trigger button is electrically connected with a one-way air outlet pipe through a wire, the one-way air outlet pipe is connected with the top of the glass tube, a switch valve is arranged on the one-way air outlet pipe, the connecting block is fixedly connected inside the fixed cylinder, and the connecting block is arranged on the side opposite to the mounting sleeve.

[0014] Further description of the above technical scheme is as follows:

[0015] A fixed rod is fixedly connected with the piston on the side away from the mounting sleeve, the fixed rod extends to the inside of the fixed cylinder on the other end and is fixedly connected with a circular plate, the fixed rod is slidingly connected inside the fixed cylinder, and a water inlet pipe is connected with one side of the fixed cylinder, and a one-way valve is arranged on the water inlet pipe.

[0016] Further description of the above technical scheme is as follows:

[0017] The fixed assembly comprises a connecting sleeve, which is fixedly connected with the outer circumferential side of the glass tube, a plurality of connecting cylinders are equiangularly arranged on the outer side of the connecting sleeve, a connecting rod is slidingly connected inside the connecting cylinder, an adjusting bolt is arranged on one side of the connecting rod and the connecting cylinder, and the cross-sectional shape of the connecting rod is L-shaped.

[0018] Further description of the above technical scheme is as follows:

[0019] The bottom end of the connecting rod is provided with a thread on the outer periphery, and the connecting rod is provided with a threaded cylinder through the thread.

[0020] As a further description of the above technical solution:

[0021] The glass tube is provided with a pressure monitoring device at the top, and a pressure display table is arranged on one side of the pressure monitoring device.

[0022] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0023] 1. In the present application, the water replenishing and exhaust assembly is provided, which allows the staff to manually press the circular plate to drive the fixed rod and the piston to move, so as to transport the pure water stored in the fixed cylinder to the glass tube through the stepped through hole and the one-way water inlet, thereby achieving the water replenishing treatment, reducing the installation and disassembly work of the plug, preventing the sealing performance from being affected after a long time, and further preventing the monitoring accuracy of the product from being affected. At this time, the switch valve on the one-way exhaust pipe will be opened to allow the gas in the glass tube to be discharged through the one-way exhaust pipe. The spherical block and the tooth block will drive the mounting block, the trigger wheel and the trigger plate to move during the movement, so that the trigger plate intermittently extrudes the trigger button. The trigger button transmits the trigger times to the external controller, and the external controller automatically adjusts the exhaust flow of the one-way exhaust pipe. The product can adjust the exhaust flow according to the water replenishing speed, thereby ensuring the overall use performance of the product.

[0024] 2. In the present application, the fixing assembly is provided, which allows the staff to manually operate the threaded cylinder to drive the taper head to move downward on the outer surface of the connecting rod, so that the connecting rod enters the land inside the circular hole, thereby fixing the vertical installation position of the glass tube and the ceramic head, preventing the glass tube and the ceramic head from being inclined due to external factors, and further preventing the ceramic head from being damaged, effectively ensuring the stability and protection effect of the product during use. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application;

[0026] Figure 2 It is a schematic diagram of the local enlarged structure of A in the present application Figure 1 ;

[0027] Figure 3 It is a schematic diagram of the local enlarged structure of B in the present application Figure 1 ;

[0028] Figure 4 It is a schematic diagram of the internal three-dimensional structure of the fixed cylinder in the present application;

[0029] Figure 5 For the utility model Figure 4 The partial enlarged structure schematic view of C.

[0030] Legend:

[0031] 1, glass tube; 2, fixed assembly; 201, connecting sleeve; 202, connecting barrel; 203, connecting rod; 204, threaded barrel; 205, taper head; 3, pressure monitoring device; 4, pressure display table; 5, plug; 6, water replenishing and exhaust assembly; 601, fixed barrel; 602, piston; 603, fixed rod; 604, round plate; 605, spring plate; 606, connecting block; 607, spring; 608, ball head block; 609, side block; 610, tooth block; 611, mounting block; 612, trigger wheel; 613, trigger plate. Specific embodiments

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of soil moisture tension meter, including glass tube 1, fixed assembly 2 is provided in the bottom outer circumferential side of glass tube 1, plug 5 is provided in the top of glass tube 1, installation sleeve is provided below plug 5, installation sleeve is fixedly connected in the top outer side of glass tube 1, installation sleeve one side is provided with water replenishing and exhaust assembly 6.

[0034] The water supplementing and exhausting assembly 6 comprises a fixed cylinder 601, which is arranged in the mounting sleeve and is communicated with the glass tube 1 through the mounting sleeve at one side, a piston 602 is slidingly sealed in the fixed cylinder 601 at one side, a connecting block 606 is arranged at one side of the piston 602, a stepped through hole is formed in the connecting block 606, a spring 607 is arranged at one side of the stepped through hole, the spring 607 is fixedly connected with the inner wall of the connecting block 606 at one side, a ball head block 608 is fixedly connected with the spring 607 at the other side, side blocks 609 are fixedly connected with the ball head block 608 at two sides, a tooth block 610 is fixedly connected with the side blocks 609 at one side, an installation block 611 and a trigger wheel 612 are arranged at the other side of the tooth block 610, the installation block 611 is fixedly connected with the inner wall of the connecting block 606 at one side, the tooth block 610 is slidingly connected in the installation block 611, a spring plate 605 is fixedly connected with the installation block 611 at one side, a trigger plate 613 is fixedly connected with the spring plate 605 at the other side, the trigger plate 613 is slidingly sealed in the installation block 611, the trigger plate 613 is fixedly connected with the trigger wheel 612 at the other side, one-way water inlets are formed at the joint of the mounting sleeve and the glass tube 1 at one side, a trigger button is arranged at one side of the trigger plate 613 relative to the spring plate 605, the trigger button is electrically connected with a one-way air outlet pipe through wires, the one-way air outlet pipe is communicated with the top of the glass tube 1, and a switch valve is arranged on the one-way air outlet pipe, the connecting block 606 is fixedly connected in the fixed cylinder 601 and is arranged at one side of the mounting sleeve, a fixed rod 603 is fixedly connected with the piston 602 at the side away from the mounting sleeve, a round plate 604 is fixedly connected with the other end of the fixed rod 603 extending into the fixed cylinder 601, the fixed rod 603 is slidingly connected in the fixed cylinder 601, and a water inlet pipe is communicated with one side of the fixed cylinder 601, and a one-way valve is arranged on the water inlet pipe.

[0035] Specifically, the personnel first pass through the external punching device to punch a circular hole with a diameter larger than that of the glass tube 1 at a predetermined position, then fill pure water into the glass tube 1, and when the ceramic head at the bottom of the glass tube 1 produces water droplets, the plug 5 seals the top end of the glass tube 1, and then the worker manually operates the glass tube 1 to make the ceramic head vertically enter the punched circular hole. When the soil around the glass tube 1 and the ceramic head is dry, the liquid in the glass tube 1 will enter the surrounding soil through the ceramic head, and as the liquid level in the glass tube 1 decreases, the internal pressure will change. The pressure monitoring device 3 monitors the internal pressure and displays it on the pressure display table 4 for the worker to observe, and then starts the external irrigation system to irrigate the soil. At this time, the worker manually presses the circular plate 604 to move the fixed rod 603 and the piston 602, and the pure water stored in the fixed cylinder 601 is delivered to the connecting block 606. When the pressure is greater than the spring force of the spring 607, the water flow will move the ball head block 608, the side block 609 and the tooth block 610, and the liquid will be delivered to the glass tube 1 through the stepped hole and the one-way water inlet to supplement the water in the glass tube 1. The installation and removal of the plug 5 is reduced to prevent the sealing performance from being affected after a long time, thereby preventing the monitoring accuracy of the product from being affected. At this time, the switch valve on the one-way air outlet pipe is opened to allow the gas in the glass tube 1 to be discharged through the one-way air outlet pipe. The tooth block 610 moves to move the mounting block 611, the trigger wheel 612 and the trigger plate 613, so that the trigger plate 613 intermittently presses the trigger button. The trigger button transmits the trigger times to the external controller, and the external controller automatically adjusts the air outlet flow of the one-way air outlet pipe. The product can adjust the air outlet flow according to the water supplementing speed, thereby ensuring the overall use performance of the product.

[0036] The fixing assembly 2 comprises a connecting sleeve 201 fixedly connected to the outer circumferential side of the glass tube 1, a plurality of connecting cylinders 202 arranged at equal angles on the outer circumferential side of the connecting sleeve 201, a connecting rod 203 slidably connected in the connecting cylinders 202, an adjusting bolt arranged on one side of the top of the connecting rod 203 and the connecting cylinder 202, and the connecting rod 203 is L-shaped in cross section, a threaded cylinder 204 is arranged on the bottom end of the connecting rod 203 through the threaded hole, a tapered head 205 is fixedly connected to the bottom end of the threaded cylinder 204, a pressure monitoring device 3 is arranged on the top of the glass tube 1, a pressure display table 4 is arranged on one side of the pressure monitoring device 3, and a ceramic head is arranged at the bottom of the glass tube 1.

[0037] Specifically, the worker manually operates the threaded cylinder 204 to drive the tapered head 205 to move downward on the outer surface of the connecting rod 203, so that the connecting rod 203 enters the land around the circular hole, to fix the vertical installation position of the glass tube 1 and the ceramic head, prevent the glass tube 1 and the ceramic head from being tilted due to external factors, and prevent damage to the ceramic head, effectively ensuring the stability and protection effect of the product during use. The worker adjusts the distance between the connecting cylinder 202 and the connecting rod 203 by adjusting the bolt, to adjust the installation position of the tapered head 205 relative to the circular hole, so that the product meets the use requirements in different situations, and further improves the use effect of the product.

[0038] Working principle: in use, first, the worker makes a circular hole with a diameter larger than that of the glass tube 1 at the preset position by using an external punching device, then fills pure water into the glass tube 1, and when the ceramic head at the bottom of the glass tube 1 drips water, the plug 5 seals the top end of the glass tube 1. Then the worker manually operates the glass tube 1 to drive the ceramic head to enter the circular hole vertically, and manually operates the threaded cylinder 204 to drive the tapered head 205 to move downward on the outer surface of the connecting rod 203, so that the connecting rod 203 enters the land around the circular hole, to fix the vertical installation position of the glass tube 1 and the ceramic head. The worker adjusts the distance between the connecting cylinder 202 and the connecting rod 203 by adjusting the bolt, to adjust the installation position of the tapered head 205 relative to the circular hole, so that the product meets the use requirements in different situations;

[0039] When the glass tube 1 and the ceramic head surrounding soil is dry, the liquid inside the glass tube 1 enters the surrounding soil through the ceramic head, as the liquid height inside the glass tube 1 decreases, the internal pressure changes, the pressure monitoring device 3 monitors the internal pressure and displays it through the pressure display table 4, so that the staff can observe it, and then start the external irrigation system to irrigate the soil, at this time, the staff manually presses the circular plate 604 to drive the fixed rod 603 and the piston 602 to move, and the pure water stored in the fixed cylinder 601 is delivered to the connecting block 606, when the pressure is greater than the elastic force of the spring 607, the water flow drives the ball head block 608, the side block 609 and the tooth block 610 to move, at this time, the liquid is delivered to the glass tube 1 through the ladder-shaped through hole and the one-way water inlet, to supplement the water in the glass tube 1, at this time, the switch valve on the one-way air outlet pipe is opened, so that the gas in the glass tube 1 is discharged through the one-way air outlet pipe, and the tooth block 610 drives the mounting block 611, the trigger wheel 612 and the trigger plate 613 to move during movement, so that the trigger plate 613 intermittently extrudes the trigger button, and the trigger button transmits the trigger times to the external controller, and the external controller automatically adjusts the air outlet flow of the one-way air outlet pipe, which is convenient to use.

[0040] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A soil moisture tensiometer comprising a glass tube (1) characterised in that: The bottom outer periphery of the glass tube (1) is provided with a fixing assembly (2), the top end of the glass tube (1) is provided with a plug (5), the plug (5) is provided below with a mounting sleeve, the mounting sleeve is fixedly connected to the top outer side of the glass tube (1), and one side of the mounting sleeve is provided with a water replenishing and exhaust assembly (6). The water replenishing and exhaust assembly (6) comprises a fixing cylinder (601), the fixing cylinder (601) is arranged in the mounting sleeve, one side of the fixing cylinder (601) is communicated with the glass tube (1) through the mounting sleeve, and a piston (602) is slidably and sealingly arranged at one side in the fixing cylinder (601).

2. A soil water tensiometer according to claim 1 characterised in that: The piston (602) is provided with a connecting block (606) at one side, a stepped through hole is formed in the connecting block (606), a spring (607) is arranged at one side in the stepped through hole, the spring (607) is fixedly connected to the inner wall of the connecting block (606) at one side, and a ball head block (608) is fixedly connected to the other side of the spring (607).

3. A soil water tensiometer according to claim 2, characterised in that: The other side of the ball head block (608) is fixedly connected with side blocks (609) on the outside, the side blocks (609) are fixedly connected with tooth blocks (610) at one side, and the tooth blocks (610) are provided with mounting blocks (611) and trigger wheels (612) at the other side.

4. A soil water tensiometer according to claim 3, characterised in that: The mounting blocks (611) are fixedly connected to the inner wall of the connecting block (606) at one side, the tooth blocks (610) are slidably connected in the mounting blocks (611), and spring plates (605) are fixedly connected to one side in the mounting blocks (611).

5. A soil water tensiometer according to claim 4, characterised in that: The spring plates (605) are fixedly connected with trigger plates (613) at the other side, the trigger plates (613) are slidably and sealingly arranged in the mounting blocks (611), the trigger plates (613) are fixedly connected with the trigger wheels (612) at the other side, and unidirectional water inlets are formed at the joint of the mounting sleeve and the glass tube (1).

6. A soil water tensiometer according to claim 5, characterised in that: The trigger plates (613) are provided with trigger buttons at the side opposite to the spring plates (605), the trigger buttons are electrically connected with unidirectional air outlets through wires, the unidirectional air outlets are communicated with the top of the glass tube (1), and the unidirectional air outlets are provided with on-off valves, the connecting block (606) is fixedly connected in the fixing cylinder (601), and the connecting block (606) is arranged at the side opposite to the mounting sleeve. The piston (602) is fixedly connected with a fixing rod (603) at the side away from the mounting sleeve, the other end of the fixing rod (603) extends into the fixing cylinder (601) and is fixedly connected with a circular plate (604), the fixing rod (603) is slidably connected in the fixing cylinder (601), and the fixing cylinder (601) is communicated with a water inlet pipe at one side, and the water inlet pipe is provided with a unidirectional valve. The fixing assembly (2) comprises a connecting sleeve (201), the connecting sleeve (201) is fixedly connected to the outer periphery of the glass tube (1), a plurality of connecting cylinders (202) are equiangularly and circumferentially arranged on the outside of the connecting sleeve (201), connecting rods (203) are slidably connected in the connecting cylinders (202), the connecting rods (203) and the connecting cylinders (202) are provided with adjusting bolts at one side of the top, and the cross section of the connecting rods (203) is L-shaped.

7. A soil water tensiometer according to claim 6, characterised in that: The connecting rod (203) is provided with a thread on the outer circumferential side of the bottom end, and is provided with a threaded cylinder (204) through the thread.

8. A soil water tensiometer according to claim 7, characterised in that: The glass tube (1) is provided with a pressure monitoring device (3) on the top, and is provided with a pressure display table (4) on one side of the pressure monitoring device (3).

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