Drainage control device for measuring scale of pit

Abstract

The utility model discloses a measuring pit scale drainage control device which comprises a short pipe connected with an original drainage opening in the wall of a measuring pit, the short pipe serves as a new drainage outlet, the short pipe is connected with an elbow through a bearing, the elbow is connected with a long pipe, the circle center of the bearing, the circle center of the short pipe and the circle center of a sector plate are coaxial, and the long pipe is perpendicular to the short pipe. According to the pit size measuring drainage control device, an original overflow hole or a drainage outlet is replaced, the short pipe serves as a drainage outlet, the long pipe serves as a water inlet, the long pipe rotates around the central axis of the short pipe under the action of the bearing, the drainage height is adjusted, the drainage depth is controlled by changing the height of a pipe opening of the long pipe, the structure is simple, and the effect is remarkable.

Description

Technical Field

[0001] The utility model relates to a drainage device, in particular to a drainage control device for measuring pit scales. Background Art

[0002] Under natural conditions, the water storage generated by rainfall will affect the growth of crops. The appropriate water depth has a positive effect on crops, while too much water may have adverse effects such as hindering root production and affecting photosynthesis. Too little water will also affect the growth and development of crops and reduce yields. Therefore, scientific research institutions often use test pits as test carriers to control the water storage depth to carry out crop flooding resistance tests and explore the appropriate water depth for crop growth.

[0003] At present, when the water storage volume is too large, overflow holes or drain outlets are mostly used for drainage. The drainage depth is difficult to control, which affects the test results. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing overflow hole or drain port cannot intuitively control the drainage depth, and to provide a pit scale drainage control device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The measuring pit scale drainage control device comprises a short pipe connected to the original drainage outlet of the measuring pit wall, the short pipe serves as a new drainage outlet, an elbow is connected to the short pipe through a bearing, the elbow is connected to a long pipe, the bearing, the short pipe and the center of the fan-shaped plate are coaxial, and the long pipe is vertically arranged to the short pipe.

[0007] Further technology of the utility model:

[0008] Preferably, the end of the long tube is provided with a filter screen.

[0009] Preferably, a fan-shaped plate is fixed on the pit wall.

[0010] Preferably, the fan-shaped plate is a 180° fan-shaped plate, and the 0° mark is a horizontal plane.

[0011] Preferably, the sector plate is provided with scale lines calculated by inverse trigonometric functions and marked with scales at different heights.

[0012] Preferably, the fan-shaped plate is provided with an arc-shaped slideway, a slider is slidably connected in the arc-shaped slideway, and a connecting rod is provided on the long tube, and the connecting rod is fixedly connected to the slider.

[0013] Preferably, the slider is provided with a fastening bolt, and the fastening bolt is tightened to fix the slider in the arc-shaped slideway.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a measuring pit scale drainage control device to replace the original overflow hole or drain hole. The short pipe is used as the drainage hole and the long pipe is used as the water inlet. The long pipe is rotated around the central axis of the short pipe by utilizing the bearing effect to adjust the drainage height. The drainage depth can be controlled by changing the height of the pipe mouth of the long pipe. The utility model has a simple structure and remarkable effect.

[0016] The scale of the fan-shaped plate in the utility model is calculated by inverse trigonometric functions and the scale lines of different heights are marked. By rotating the long tube, the height of the long tube mouth can be directly obtained by the scale of the fan-shaped plate pointed to by the long tube mouth, so as to further accurately control the drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the side view structure of the drainage control device for measuring pit scale;

[0019] Figure 2 It is a schematic diagram of the front view structure of the drainage control device for measuring pit scale;

[0020] The serial numbers in the above figure are: 1- pit wall, 2- short tube, 3- bearing, 4- elbow, 5- long tube, 6- filter screen, 7- fan plate, 8- scale line, 9- arc slide, 10- slider, 11- connecting rod, 12- fastening bolt. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] like Figure 1 As shown, the utility model provides a measuring pit scale drainage control device, including a short pipe 2 connected to the original drainage outlet of the measuring pit wall 1, the short pipe 2 serves as a new drainage outlet, the short pipe 2 is connected to an elbow 4 through a bearing 3, the elbow 4 is connected to a long pipe 5, the centers of the bearing 3, the short pipe 2 and the fan-shaped plate 7 are coaxial, and the long pipe 5 is arranged perpendicular to the short pipe 2.

[0023] The long tube rotates around the center axis of the short tube to adjust the drainage height.

[0024] In order to prevent debris in the test pit from clogging the long tube 5, elbow 4 and short tube 2, a filter screen 6 is provided at the end of the long tube 5 to intercept impurities. The filter screen 6 is cleaned regularly, or the filter screen 6 plate is replaced as a whole using a snap-fit.

[0025] A sector plate 7 is fixed on the pit wall 1 .

[0026] The sector plate 7 is a 180° sector plate 7, and the 0° mark is a horizontal plane.

[0027] The fan-shaped plate 7 is provided with scale lines 8 calculated by inverse trigonometric functions and marked with scales at different heights. By rotating the long tube, the fan-shaped plate scale to which the long tube mouth points can directly obtain the height of the long tube mouth, and further accurately control the drainage.

[0028] In order to increase the rotation stability of the long tube 5 , an arc-shaped slideway 9 is provided on the sector plate 7 , a slider 10 is slidably connected in the arc-shaped slideway 9 , and a connecting rod 11 is provided on the long tube 5 , and the connecting rod 11 is fixedly connected to the slider 10 .

[0029] The slider 10 is provided with a fastening bolt 12, which is tightened to push against the slider 10 in the arc-shaped slideway 9 to fix the slider 10. The long pipe 5 is stabilized at an angle to drain water.

[0030] It should be noted that, in the present embodiment, the pipe joints are sealed with waterproof glue, and at the same time, the gap between the short pipe 2 and the original drain outlet is also sealed with waterproof glue.

[0031] In order to prevent the short tube 2 from rotating simultaneously due to the rotation of the long tube 5, thereby affecting the waterproof effect, the short tube 2 can be fixed with bolts after it extends out of the original drainage outlet.

[0032] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.

Claims

1. The pit scale drainage control device is characterized by: It comprises a short pipe connected to the original drainage outlet of the pit wall, the short pipe serves as a new drainage outlet, an elbow is connected to the short pipe through a bearing, the elbow is connected to a long pipe, the centers of the bearing, the short pipe and the fan-shaped plate are coaxial, and the long pipe is vertically arranged to the short pipe.

2. The pit scale drainage control device according to claim 1, characterized in that: The end of the long tube is provided with a filter screen.

3. The pit scale drainage control device according to claim 1, characterized in that: A fan-shaped plate is fixed on the pit wall.

4. The pit scale drainage control device according to claim 3, characterized in that: The fan-shaped plate is a 180° fan-shaped plate, and the 0° mark is a horizontal plane.

5. The pit scale drainage control device according to claim 3, characterized in that: The fan-shaped plate is provided with scale lines calculated by inverse trigonometric functions and marked with scales at different heights.

6. The pit scale drainage control device according to claim 3, characterized in that: The fan-shaped plate is provided with an arc-shaped slideway, a slider is slidably connected in the arc-shaped slideway, and a connecting rod is provided on the long tube, and the connecting rod is fixedly connected to the slider.

7. The pit scale drainage control device according to claim 6, characterized in that: The slide block is provided with a fixing bolt, which is tightened to push against the arc-shaped slideway to fix the slide block.

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