Simple measuring device for saturated hydraulic conductivity of soil

Abstract

The utility model belongs to the technical field of soil saturated hydraulic conductivity measurement, and particularly relates to a simple soil saturated hydraulic conductivity measurement device which comprises an upper fixing plate and a lower fixing plate, the lower fixing plate is mounted below the upper fixing plate, and a water outlet pipe is mounted at the bottom of the lower fixing plate; the lifting mechanism is used for automatically lifting the upper fixing plate and comprises fixing rods vertically installed at the four corners of the top of the lower fixing plate and springs arranged on the four fixing rods in a sleeving mode, and the top ends of the four fixing rods movably penetrate through the upper fixing plate; the upper fixing plate can be always kept suspended above the lower fixing plate through the lifting mechanism, at the moment, the distance between the upper fixing plate and the lower fixing plate is larger than the height of two overlapped cutting rings, when the cutting rings are placed, the overlapped cutting rings are directly placed on the top of the lower fixing plate, and therefore the cutting rings can be placed conveniently. The upper fixing plate does not need to be disassembled additionally, and the step of installing the cutting ring is simplified.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of soil saturated water conductivity determination, specifically relates to a simple and easy soil saturated water conductivity determination device. BACKGROUND

[0002] Soil saturated water conductivity is the water quantity through unit area per unit time under unit water potential gradient when soil is saturated with water, and it is a function of soil texture, bulk density and pore distribution characteristics.

[0003] At present, in the process of measuring soil saturated water conductivity by using a cutting ring method, the cutting ring soaked in water for a predetermined time is taken out, the cover is removed, an empty cutting ring is sleeved on it, the joint is sealed with adhesive tape first, then is bonded with molten wax, and then the combined cutting ring is placed on a funnel for testing. According to the operation process of this method, the device is often unstable and water leakage occurs at the joint. In the Chinese utility model patent with the patent number CN201520753379.3 and the name of a simple device for measuring soil saturated water conductivity based on a cutting ring method (as shown in Figure 4 The two cutting rings are fixed by the fixing plates, the upper and lower fixing plates are respectively provided with clamping grooves matched with the cutting rings, the installation of the cutting rings is facilitated, the upper and lower fixing plates are respectively provided with openings and liquid passages according to the characteristics of the cutting rings, the use is more convenient, the two fixing plates are connected through the fastening screws, the distance between the upper and lower fixing plates can be controlled after the cutting rings are fixed, the sealing gasket is compressed, and water leakage between the two cutting rings is prevented. However, when the cutting rings are installed, the yuanbao nut is unscrewed from the fastening bolt, the upper fixing plate is removed from the fastening screw, the two cutting rings are stacked on the lower fixing plate, the upper fixing plate is placed on the top of the cutting rings and is sleeved on the fastening screw, and then the yuanbao nut is screwed on the fastening screw again, so that the two cutting rings are compressed on the lower fixing plate by the upper fixing plate. The yuanbao nut is time-consuming and labor-consuming to screw, the steps for placing the cutting rings are complicated, and the practicability of the equipment is reduced. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a simple and easy soil saturated water conductivity determination device to solve the problems that the yuanbao nut is time-consuming and labor-consuming to screw and the steps for placing the cutting rings are complicated.

[0005] To achieve the above object, the utility model provides the following technical scheme: a simple and easy soil saturated water conductivity determination device, comprising: an upper fixing plate;

[0006] A lower fixing plate is installed below the upper fixing plate, and a water outlet pipe is installed at the bottom of the lower fixing plate.

[0007] The lifting mechanism for automatically lifting the upper fixing plate comprises fixed rods vertically installed at the top of the four corners of the lower fixing plate, and springs respectively sleeved on the four fixed rods, the top end of the four fixed rods is movably penetrated through the upper fixing plate, and the two ends of the spring are respectively abutted on the upper fixing plate and the lower fixing plate.

[0008] Preferably, the locking mechanism for automatically pressing and locking the upper fixing plate comprises:

[0009] The support seat is fixed on the plate surface of the upper fixing plate, the pressing rod is installed above the fixed rod, one end of the pressing rod is rotatably installed on the top of the support seat, and a connecting rod is rotatably connected between the bottom of the pressing rod and the top of the fixed rod, so that the pressing rod can rotate around the top of the support seat.

[0010] In order to realize the vertical rotation of the support mechanism at the bottom end of the pressing rod, a circular groove is formed at the top of the upper fixing plate and below the support mechanism, a bearing is arranged in the circular groove, the outer ring of the bearing is connected with the circular groove in an interference fit mode, and the bottom end of the support mechanism is located in the bearing and connected with the inner ring of the bearing in an interference fit mode.

[0011] Preferably, the support mechanism comprises a square groove at the bottom of the pressing rod, a sliding block installed in the square groove, a screw rod rotatably connected with the sliding block, and a sleeve rotatably installed on the screw rod, the bottom end of the sleeve is inserted into the bearing in the circular groove, and the lower end of the sleeve is connected with the inner ring of the bearing in an interference fit mode, so that the height of the support mechanism is adjusted by rotating the sleeve.

[0012] A threaded hole is formed in the sleeve, and the sleeve is rotatably installed on the screw rod through the threaded hole.

[0013] Preferably, four support seats are vertically arranged at the top of the upper fixing plate, one end of the four pressing rods is rotatably installed on the top of the four support seats, and the fixed rod is arranged between the support seat and the support mechanism, so that the acting force of the pressing rod on the fixed rod is changed by adjusting the height of the support mechanism.

[0014] Preferably, four through holes matched with the four fixed rods are formed in the upper fixing plate from top to bottom, and the upper fixing plate is movably installed on the four fixed rods through the four through holes, so that the upper fixing plate moves linearly along the direction of the fixed rod.

[0015] Preferably, two ring knives are arranged between the upper fixing plate and the lower fixing plate, a sealing gasket is arranged between the two ring knives, and the sealing gasket is in a circular ring structure.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1) The utility model discloses a lifting mechanism can realize always keeping the upper fixed plate suspended in the upper of lower fixed plate, the spacing between upper fixed plate and lower fixed plate is greater than the height of two superimposed ring knives at this moment, when placing ring knife, directly place the superimposed ring knife on the top of lower fixed plate, do not need to take down the upper fixed plate additionally, simplify the step of ring knife installation.

[0018] (2) The utility model discloses a locking mechanism can realize automatically pressing and locking the upper fixed plate on ring knife, under the lever principle of pressure rod, connecting rod and fixed rod, the upper fixed plate is pressed down on fixed rod, thereby clamping ring knife between upper fixed plate and lower fixed plate, always keeping the locking state of upper fixed plate to ring knife through supporting mechanism, finally improve the efficiency of ring knife assembly, reduce the labor intensity of operator. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the perspective view of the utility model;

[0020] Figure 2 It is the perspective view of locking mechanism of the utility model;

[0021] Figure 3 It is the partial section view of locking mechanism and fixed rod of the utility model;

[0022] Figure 4 It is the perspective view of prior art;

[0023] In the drawing, 1, lower fixed plate;2, ring knife;3, spring;4, sealing gasket;5, upper fixed plate;6, sleeve;7, screw;8, pressure rod;9, connecting rod;10, fixed rod;11, support seat;12, through -hole;13, circular recess;14, screw hole;15, water outlet pipe;16, bearing;17, square recess;18, sliding block. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and 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 belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-2 The utility model provides the following technical scheme: a kind of simple and easy determination device of soil saturated hydraulic conductivity, comprising: upper fixed plate 5;

[0026] Lower fixed plate 1 is installed in the lower of upper fixed plate 5, and the bottom of lower fixed plate 1 is provided with water outlet pipe 15;

[0027] The lifting mechanism for automatically lifting the upper fixed plate 5 comprises fixed rods 10 vertically installed at the top of the four corners of the lower fixed plate 1, and springs 3 respectively sleeved on the four fixed rods 10, the top ends of the four fixed rods 10 are movably penetrated through the upper fixed plate 5, and the two ends of the spring 3 are respectively abutted on the upper fixed plate 5 and the lower fixed plate 1.

[0028] Through the above technical scheme:

[0029] The upper fixed plate 5 is installed above the lower fixed plate 1 through the fixed rods 10, and the upper fixed plate 5 is always kept suspended above the lower fixed plate 1 through the elastic force of the spring 3, at this time, the spacing between the upper fixed plate 5 and the lower fixed plate 1 is greater than the height of the two stacked ring knives 2, when the ring knife 2 is placed, only the stacked ring knife 2 needs to be placed on the lower fixed plate 1, without adjusting the position of the upper fixed plate 5, the installation steps of the ring knife 2 are simplified.

[0030] Further, for the upper fixed plate 5 and the fixed rod 10 arranged above, four through holes 12 matched with the four fixed rods 10 are penetrated through the upper fixed plate 5 from top to bottom, the upper fixed plate 5 is movably installed on the four fixed rods 10 through the four through holes 12, and the upper fixed plate 5 can reciprocatingly lift on the fixed rod 10 through the through hole 12.

[0031] Further, for the upper fixed plate 5 and the lower fixed plate 1 arranged above, two ring knives 2 are stacked and installed between the upper fixed plate 5 and the lower fixed plate 1, a sealing gasket 4 is arranged between the two ring knives 2, the sealing gasket 4 is a circular ring structure, the two ring knives 2 are stacked between the upper fixed plate 5 and the lower fixed plate 1, when the ring knife 2 is clamped on the lower fixed plate 1 by the upper fixed plate 5, the sealing gasket 4 is filled in the gap between the two ring knives 2, and water leakage is avoided.

[0032] Please refer to Figures 1-3 The locking mechanism for automatically pressing and locking the upper fixed plate 5, the locking mechanism comprises:

[0033] The pressing rod 8 is installed above the fixed rod 10, one end of the pressing rod 8 is rotatably installed at the top of the support seat 11, the bottom of the support seat 11 is fixed on the plate surface of the fixed plate 5, and the bottom of the pressing rod 8 is rotatably connected with the top of the fixed rod 10 through the connecting rod 9.

[0034] The support mechanism is rotatably installed at the bottom end of the pressing rod 8, a circular groove 13 is arranged at the top of the upper fixed plate 5 and below the support mechanism, a bearing 16 is arranged in the circular groove 13, the outer ring of the bearing is connected with the circular groove in an interference fit manner, and the bottom end of the support mechanism is located in the bearing 16 and connected with the inner ring of the bearing 16 in an interference fit manner.

[0035] Through the above technical scheme:

[0036] When the ring knives 2 are between the upper fixed plate 5 and the lower fixed plate 1, one end of the pressing rod 8 is lifted upward, and the upper fixed plate 5 is moved downward on the fixed rod 10 under the principle of lever through the connecting rod 9, the support seat 11 and the fixed rod 10, so that the ring knives 2 are clamped between the upper fixed plate 5 and the lower fixed plate 1, water leakage between the ring knives 2 is avoided, and in the process, the rotating sleeve 6 is screwed to a shallow position of the sleeve 6 at one end of the screw rod 7 of the support mechanism, the length of the sleeve 6 and the screw rod 7 is kept larger, so that the pressing rod 8 is always kept in the state of being lifted upward, the pressing rod 8 generates upward force on the connecting rod 9 and the fixed rod 10, and the fixed plate 5 is pressed downward on the spring under the action of the reaction force, so that the ring knives 2 are always clamped between the upper fixed plate 5 and the lower fixed plate 1.

[0037] Further, for the support mechanism arranged above, the support mechanism comprises a square groove 17 at the bottom of the pressing rod 8, a sliding block 18 installed in the square groove 17, a screw rod 7 rotationally connected with the sliding block 18, and a sleeve 6 rotationally installed on the screw rod 7, the bottom end of the sleeve 6 is inserted into the bearing 16 in the circular groove 13, and the lower end of the sleeve 6 is connected with the inner ring of the bearing 16 in an interference fit manner.

[0038] A threaded hole 14 is formed in the sleeve 6, the sleeve 6 is rotationally installed on the screw rod 7 through the threaded hole 14, when the sleeve 6 is inserted into the bearing 16 in the circular groove 13, one end of the pressing rod 8 is lifted upward through the screw rod 7 and the sleeve 6, the sleeve 6 drives the rolling balls in the bearing 16 to rotate, the sleeve 6 can be screwed into or out of the screw rod 7 through the threaded hole 14, so as to adjust the length of the screw rod 7 and the sleeve 6, so that the pressing rod 8 can be lifted or pressed downward, during which the sliding block 18 rotationally connected with the screw rod 7 will produce linear displacement in the square groove 17, the height of the upper fixed plate 5 descending on the fixed rod 10 can be adjusted by lifting or pressing the pressing rod 8 downward, and finally the pressing force of the upper fixed plate 5 pressing the ring knives 2 on the lower fixed plate 1 can be adjusted.

[0039] Further, for the pressing rod 8 arranged above, three support seats 11 are fixed vertically on the top of the upper fixed plate 5, one end of each of the three pressing rods 8 is rotationally installed on the top of the three support seats 11, and the fixed rod 10 is arranged between the support seat 11 and the sleeve 6, the pressing rod 8 is arranged above the fixed rod 10 through the support seat 11, and one end of the pressing rod 8 can rotate through the support seat 11, when the pressing rod 8 rotates on the support seat 11, the upper fixed plate 5 can be reciprocatingly lifted and lowered on the fixed rod 10 through the connecting rod 9.

[0040] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A simple device for measuring saturated hydraulic conductivity of soil, characterized by, The utility model relates to a kind of automatic water heater, including: Upper fixed plate (5); Lower fixed plate (1) is installed below the upper fixed plate (5), and the bottom of the lower fixed plate (1) is equipped with water outlet pipe (15); Lifting mechanism for automatically lifting the upper fixed plate (5), the lifting mechanism includes vertical installation in the top four corners of lower fixed plate (1) fixed rod (10), and spring (3) is respectively sleeved on four fixed rods (10), the top of four fixed rods (10) is all active and penetrates upper fixed plate (5), and the both ends of spring (3) are respectively abutted on upper fixed plate (5) and lower fixed plate (1).

2. The simple device for measuring saturated hydraulic conductivity of soil according to claim 1, wherein Locking mechanism for automatically pressing and locking the upper fixed plate (5), the locking mechanism includes: Support seat (11) is fixed on the board surface of the upper fixed plate (5), and pressing rod (8) is installed above the fixed rod (10), one end of the pressing rod (8) is rotatably installed on the top of support seat (11), and connecting rod (9) is rotatably connected between the bottom of the pressing rod (8) and the top of the fixed rod (10).

3. The simple device for measuring saturated hydraulic conductivity of soil according to claim 2, wherein Rotatable support mechanism is installed at the bottom end of the pressing rod (8), and circular recess (13) is formed in the top of the upper fixed plate (5) and below the support mechanism, bearing (16) is arranged in the circular recess (13), the outer ring of the bearing is connected with the circular recess in interference fit mode, and the bottom end of the support mechanism is located in the bearing (16) and is connected with the inner ring of the bearing (16) in interference fit mode.

4. The simple device for measuring the saturated hydraulic conductivity of soil according to claim 3, wherein The support mechanism includes square recess (17) in the bottom of the pressing rod (8), sliding block (18) is installed in the square recess (17), screw rod (7) is rotatably connected with the sliding block (18), and sleeve (6) is screwedly installed on the screw rod (7), the bottom end of the sleeve (6) is inserted into the bearing (16) in the circular recess (13), and the lower end of the sleeve (6) is connected with the inner ring of the bearing (16) in interference fit mode. Threaded hole (14) is formed in the sleeve (6), and the sleeve (6) is screwedly installed on the screw rod (7) through the threaded hole (14).

5. The simple device for measuring the saturated hydraulic conductivity of soil according to claim 2, characterized in that: Four support seats (11) are fixed vertically on the top of the upper fixed plate (5), one end of four pressing rods (8) is rotatably installed on the top of three support seats (11) respectively, and the fixed rod (10) is arranged between the support seat (11) and the sleeve (6).

6. The simple device for measuring saturated hydraulic conductivity of soil according to claim 1, wherein: Four through holes (12) matched with four fixed rods (10) are formed in the upper fixed plate (5) from top to bottom, and the upper fixed plate (5) is movably installed on the four fixed rods (10) through the four through holes (12).

7. The simple device for measuring saturated hydraulic conductivity of soil according to claim 1, wherein: Two ring knives (2) are stacked and installed between the upper fixed plate (5) and the lower fixed plate (1), sealing gasket (4) is arranged between the two ring knives (2), and the sealing gasket (4) is in circular ring structure.

Images