CN218995065U

CN218995065U - Test pit water injection test device

Info

Publication number: CN218995065U
Application number: CN202222981748.7U
Authority: CN
Inventors: 王兆亮; 雍超; 黄星; 刘兵
Original assignee: Huaian Construction Engineering Quality Inspection Center Co ltd
Current assignee: Huaian Construction Engineering Quality Inspection Center Co ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-09
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a test pit water injection test device which comprises a test ring, a flow bottle assembly and a bracket for placing the flow bottle assembly, wherein the flow bottle assembly comprises a flow bottle, a sealing plug arranged in the opening of the flow bottle, and an air inlet pipe and an air outlet pipe arranged on the sealing plug, the test ring comprises a soil inserting part and a transparent observing part, a bottle body placing opening is arranged on a placing plate of the bracket, the air inlet pipe comprises a first straight pipe, a corrugated pipe and a second straight pipe which are integrally arranged, a positioning sleeve is arranged on the bracket and positioned below the bottle body placing opening, and the second straight pipe is in sliding connection with the positioning sleeve. The utility model can facilitate the observation of the distance between the air inlet pipe, the water outlet pipe and the water level line of the test ring, reduce the debugging time of the device, and prevent the air inlet pipe from being immersed in the water at one end in the flow bottle during adjustment, thereby avoiding unexpected water outlet and improving the test efficiency.

Description

Test pit water injection test device

Technical Field

The utility model relates to the technical field of foundation engineering, in particular to a test pit water injection test device.

Background

In the field of foundation engineering detection, a pit single-ring water injection test is a common simple method for measuring permeability coefficient on site, is mainly suitable for soil layers such as sandy soil, sandy gravel and the like, and is characterized in that seepage is three-dimensional flow, and the test is used for measuring the comprehensive permeability coefficient of the soil layers.

The current water injection test device adopts the test ring that metal was made mostly, and the distance that leads to adjusting intake pipe, outlet pipe and test ring water line is comparatively difficult owing to unable perspective when using, and the erection time of device is longer, and the non-electricity test device is in the time of using through the degree of depth that the one end of adjusting the intake pipe inserted in the test ring adjusting the test ring in the highest water level, and the other end of intake pipe is located the top of flow bottle interior surface of water, like chinese patent CN202120679084.1, patent name: the patent discloses a test device for soil permeability coefficient, but this kind of test device is very easy excessively to plug the intake pipe when actually adjusting so that the one end that is located the flow bottle is submerged in the bottle under the water surface and is led to unexpected play water, adjusts inconveniently, influences test efficiency.

Disclosure of Invention

The utility model aims at: the utility model provides a test pit water injection test device, be convenient for observe the distance of intake pipe, outlet pipe and test ring water line, reduce device debugging time, and be difficult for making the intake pipe be located the one end of flow bottle and submergence surface during the regulation, avoid unexpected play water, improve test efficiency.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a test pit water injection test device, includes test ring, flow bottle subassembly and is used for placing the support of flow bottle subassembly, flow bottle subassembly includes the flow bottle, sets up sealing plug in the flow bottle bottleneck and sets up intake pipe and outlet pipe on the sealing plug, the test ring is including inserting native portion and transparent viewing portion, be equipped with the bottle on the board of placing of support and place the mouth, the intake pipe is including the first straight tube, bellows and the second straight tube of integration setting, be equipped with on the support and be located the bottle is placed the locating sleeve of mouth below, second straight tube sliding connection is in the locating sleeve.

According to a further improved scheme, the soil inserting part is made of a metal material, the transparent observation part is made of organic glass, scale marks for observing the water level in the ring are arranged on the transparent observation part, and a sealing layer is arranged between the soil inserting part and the transparent observation part.

According to a further improvement scheme, the edge of the upper end face of the soil inserting portion is provided with a hammering flange, and the lower end face of the soil inserting portion is provided with a conical protrusion which is convenient to insert into soil.

According to a further improved scheme, an auxiliary observation assembly is arranged on the placement plate and comprises an upright post, one side of the upright post is detachably connected with a graduated scale, a horizontal pointer with one end abutting against the flow bottle is vertically and slidably connected to the upright post, and the horizontal pointer is fixed through a fastener.

According to a further improvement scheme, the stand column is hinged to the placing plate, a pressing plate fixed through a fastener is connected to the stand column in a sliding mode, and the stand column is in a vertical state when the pressing plate is abutted to the upper end face of the flow bottle.

According to a further improvement scheme of the utility model, the upper end of the first straight pipe exceeds the liquid level in the flow bottle, the second straight pipe is flush with the water level line in the test ring, the upper end of the water outlet pipe is positioned below the liquid level of the flow bottle, and the lower end of the water outlet pipe is positioned below the water level line in the test ring.

According to a further improvement scheme, the support comprises an adjusting supporting leg arranged on the placing plate, the positioning sleeve is vertically arranged below the placing plate through a connecting rod, and the water outlet pipe is provided with a control valve.

The utility model has the beneficial effects that:

according to the utility model, the distance between the air inlet pipe, the water outlet pipe and the water level line of the test ring can be conveniently observed by arranging the transparent observation part on the test ring, the debugging time of the device is reduced, and the telescopic corrugated pipe and the positioning sleeve for enabling the second straight pipe to be vertical are arranged, so that the telescopic length of the corrugated pipe is only required to be regulated when the lower end position of the air inlet pipe is regulated, the first straight pipe in the bottle is not required to be regulated, and compared with the condition that the upper end of the air inlet pipe is immersed in the water surface to cause unexpected water outlet due to excessive plugging of the whole air inlet pipe is avoided, the regulation speed is high, and the test efficiency is improved.

According to the utility model, the hammer pressing flange is arranged at the edge of the upper end face of the soil inserting part, so that the soil inserting part can be conveniently inserted into an experimental soil layer, and can be conveniently carried as a handle, and the conical bulge which is convenient to insert into soil is arranged on the lower end face of the soil inserting part, so that the pressure intensity of the lower end of the inserting part when the lower end of the inserting part is pressed in is increased, and the insertion is smoother.

Thirdly, because of the limitation of field conditions, a plurality of test points can only determine the water injection flow by reading the volume scale on the flow bottle, the volume scale on the flow bottle is generally larger in interval, the condition that the water level line in the bottle is positioned between two scale readings can occur during actual test, the manual estimation range is larger, and the measurement accuracy is low. According to the utility model, the more precise graduated scale is arranged on one side of the large-scale flow bottle, the corresponding precise graduation on the graduated scale is found according to the water line in the flow bottle during measurement, and the liquid volume in the bottle is converted according to the distance between the large graduations above and below the water line on the flow bottle in equal proportion, so that the estimation range can be reduced, and the measurement accuracy is improved.

And fourthly, the upright post is connected with the pressing plate fixed through the fastener in a sliding way, and the upright post is in a vertical state when the pressing plate is abutted against the upper end surface of the flow bottle. The stand can be attached to the placing plate through the hinge to be convenient for store and transport, the stand can be ensured to be vertical and the flow bottle is placed vertically through the pressing plate, so that the water level in the flow bottle is convenient to be vertical to the water level, measurement is convenient, and the situation that the flow bottle is inclined to cause inaccurate reading is avoided.

Description of the drawings:

fig. 1 is a schematic cross-sectional view of the structure of the present utility model.

Fig. 2 is a partially enlarged schematic front view of the structure of the positioning sleeve of the present utility model.

FIG. 3 is a schematic enlarged front view of a test ring according to the present utility model.

FIG. 4 is a schematic view of a flow bottle assembly according to the present utility model.

In the figure, 1-test ring, 2-support, 3-flow bottle, 4-sealing plug, 5-outlet pipe, 6-soil insertion part, 7-transparent observation part, 8-scale mark, 9-placing plate, 10-upright post, 11-scale, 12-horizontal pointer, 13-positioning sleeve, 15-hammering flange, 16-conical bulge, 18-first straight pipe, 19-corrugated pipe, 20-second straight pipe, 21-adjusting supporting leg, 22-connecting rod and 23-pressing plate.

The specific embodiment is as follows:

the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to fig. 1-4, it can be known that a test pit water injection test device comprises a test ring 1, a flow bottle assembly and a bracket 2 for placing the flow bottle assembly, wherein the flow bottle assembly comprises a flow bottle 3, a sealing plug 4 arranged in the opening of the flow bottle 3, and an air inlet pipe and an air outlet pipe 5 arranged on the sealing plug 4, the test ring 1 comprises an earth inserting part 6 and a transparent observing part 7, a bottle placing opening is arranged on a placing plate 9 of the bracket 2, the air inlet pipe comprises a first straight pipe 18, a corrugated pipe 19 and a second straight pipe 20 which are integrally arranged, a positioning sleeve 13 arranged below the bottle placing opening is arranged on the bracket 2, and the second straight pipe 20 is slidably connected in the positioning sleeve 13. Preferably, the first straight tube 18, the second straight tube 20 and the positioning sleeve 13 are coaxially arranged.

The soil inserting part 6 is made of a metal material, the transparent observing part 7 is made of organic glass, the transparent observing part 7 is provided with scale marks 8 for observing the water level in the ring, and a sealing layer is arranged between the soil inserting part 6 and the transparent observing part 7.

The edge of the upper end face of the soil inserting part 6 is provided with a hammering flange 15, and the lower end face of the soil inserting part 6 is provided with a conical bulge 16 which is convenient for being inserted into soil.

Be equipped with supplementary observation subassembly on placing the board 9, supplementary observation subassembly includes stand 10, stand 10 one side is dismantled and is connected with scale 11, vertical sliding connection has the horizontal pointer 12 of one end and the 3 butt of flow bottle on the stand 10, horizontal pointer 12 passes through the fastener and fixes. (auxiliary observation principle: assuming that the scale on the flow bottle 3 is provided with one scale line every 10L, the distance between two adjacent scale lines is 2CM, and the corresponding 0.5 liter per millimeter can be obtained through conventional calculation, when the water level line is positioned between the two scale lines, the water level accurate to millimeter is measured through the scale 11, and the specific volume of the liquid in the bottle is calculated).

The stand column 10 is hinged to the placing plate 9, a pressing plate 23 fixed through a fastener is connected to the stand column 10 in a sliding mode, and the stand column 10 is in a vertical state when the pressing plate 23 abuts against the upper end face of the flow bottle 3.

The upper end of the first straight pipe 18 exceeds the liquid level in the flow bottle 3, the second straight pipe 20 is flush with the water level line in the test ring 1, and the upper end of the water outlet pipe 5 is positioned below the liquid level of the flow bottle 3 and the lower end of the water outlet pipe is positioned below the water level line in the test ring 1.

The support 2 comprises an adjusting supporting leg 21 arranged on the placing plate 9, the positioning sleeve 13 is vertically arranged below the placing plate 9 through a connecting rod 22, and the water outlet pipe 5 is provided with a control valve.

Preferably, an internal thread is arranged in the bottle body placing port, an external thread matched with the internal thread is arranged on the periphery of the bottleneck of the flow bottle 3, and the flow bottle 3 is in threaded connection with the placing plate 9.

The utility model provides a test pit water injection test device, which has the following working principle: when the device is used, firstly, a test pit is excavated to a test soil layer, the soil layer at the test position is processed, surface floating soil is removed, a hand or hammer is used for hammering a flange 16 at the test position to slowly press a test ring 1 into the test soil layer, a buffer layer is paved in the test ring 1, the soil layer which is tightly attached to the test ring outside the test ring 1 is compacted, disturbance to other soil layers is reduced as much as possible, a support 2 is erected above the test ring 1, a flow bottle 3 is vertically placed on a placing plate 9, the lower pipe orifice of a second straight pipe 20 is adjusted to the position of a scale mark set by a transparent observation part 7 of the test ring 1 through a corrugated pipe 19, the pipe orifice of a water outlet pipe 5 is lower than the height of the set scale mark, a stand column 10 is vertical, a pressing plate 23 on the stand column is moved to be pressed on the upper top surface of the flow bottle to fix the stand column, the stand column is vertical, a water injection test is carried out, and the flow of a standard specified time period is recorded. And the volume in the bottle is converted in an equal proportion through the horizontal pointer 12 and the graduated scale 11 when the volume of the liquid in the bottle is read every time, so that the measurement error is reduced.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.

Claims

1. The utility model provides a test pit water injection test device, includes test ring (1), flow bottle subassembly and is used for placing support (2) of flow bottle subassembly, flow bottle subassembly includes flow bottle (3), sets up sealing plug (4) and setting in flow bottle (3) bottleneck are in intake pipe and outlet pipe (5) on sealing plug (4), its characterized in that: the test ring (1) comprises an earth inserting part (6) and a transparent observing part (7), a bottle body placing port is formed in a placing plate (9) of the support (2), the air inlet pipe comprises a first straight pipe (18), a corrugated pipe (19) and a second straight pipe (20) which are integrally arranged, a positioning sleeve (13) located below the bottle body placing port is arranged on the support (2), and the second straight pipe (20) is slidably connected in the positioning sleeve (13).

2. The pit water injection test device according to claim 1, wherein: the soil inserting part (6) is made of a metal material, the transparent observing part (7) is made of organic glass, a scale mark (8) for observing the water level in the ring is arranged on the transparent observing part (7), and a sealing layer is arranged between the soil inserting part (6) and the transparent observing part (7).

3. The pit water injection test device according to claim 1 or 2, wherein: the edge of the upper end face of the soil inserting part (6) is provided with a hammering flange (15), and the lower end face of the soil inserting part (6) is provided with a conical bulge (16) which is convenient for inserting into soil.

4. The pit water injection test device according to claim 1, wherein: be equipped with supplementary observation subassembly on placing board (9), supplementary observation subassembly includes stand (10), be connected with scale (11) can be dismantled to stand (10) one side, vertical sliding connection has horizontal pointer (12) of one end and flow bottle (3) butt on stand (10), horizontal pointer (12) are fixed through the fastener.

5. The pit water injection test device according to claim 4, wherein: the stand column (10) is hinged to the placing plate (9), a pressing plate (23) fixed through a fastener is connected to the stand column (10) in a sliding mode, and the stand column (10) is in a vertical state when the pressing plate (23) abuts against the upper end face of the flow bottle (3).

6. The pit water injection test device according to claim 1, wherein: the upper end of the first straight pipe (18) exceeds the liquid level in the flow bottle (3), the second straight pipe (20) is flush with the water level line in the test ring (1), and the upper end of the water outlet pipe (5) is positioned below the liquid level of the flow bottle (3) and the lower end of the water outlet pipe is positioned below the water level line in the test ring (1).

7. The pit water injection test device according to claim 1, wherein: the support (2) comprises an adjusting supporting leg (21) arranged on the placing plate (9), the positioning sleeve (13) is vertically arranged below the placing plate (9) through a connecting rod (22), and the water outlet pipe (5) is provided with a control valve.