A water filling device for a compaction detector capable of automatically controlling water stop

By designing an irrigation device that automatically controls water shut-off, the problem of inaccurate water injection in existing irrigation devices has been solved, and automatic water shut-off control has been achieved, improving the accuracy and flexibility of compaction degree detection.

CN224303685UActive Publication Date: 2026-05-29GUANGDONG CHENGXIN CONSTR ENG QUALITY INSPECTION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG CHENGXIN CONSTR ENG QUALITY INSPECTION CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

The existing irrigation devices lack an automatic water shut-off function, making it difficult to accurately control the water injection volume, resulting in large errors in compaction calculation and affecting the accuracy of engineering quality testing.

Method used

A water filling assembly including a flow mechanism and an adjustment mechanism was designed. It has an automatic water shut-off function. The water level changes can be observed through a level tube. Combined with a telescopic sleeve and a positioning rod, the water shut-off can be automatically controlled to avoid overfilling or underfilling.

Benefits of technology

It enables automatic and precise water shut-off, improves the accuracy and flexibility of compaction testing, adapts to different testing needs, and reduces human error.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224303685U_ABST
Patent Text Reader

Abstract

The utility model provides a kind of compaction degree detector with automatic control water filling instrument for stopping water, it is related to water filling instrument field, comprising: water filling component, the water filling component is composed of flow mechanism and adjusting mechanism, water filling component can realize the function of water injection to the inside of detection pit, to obtain the corresponding volume of detection pit by observing the change of water level inside water storage bucket, it is convenient and flexible to use, and water filling component has automatic water stop function, can automatically stop water after liquid level reaches predetermined height, avoid the phenomenon of overwatering or insufficient to occur, simultaneously, water stop height can be freely regulated by adjusting mechanism, can adapt to different detection needs, solve the problem that existing water filling instrument does not have automatic water stop function, and water flow is realized by artificial control pipeline valve, it is difficult to realize accurate water stop when water level in test pit reaches predetermined height, and overwatering or insufficient situation is prone to occur.
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Description

Technical Field

[0001] This utility model relates to the field of irrigation instrument technology, and in particular to an irrigation instrument for a compaction detector that can automatically control water shut-off. Background Technology

[0002] In road and building construction, compaction degree is a key indicator for measuring the compaction quality of soil and reflects the degree of soil density. Currently, when measuring compaction degree by water injection method, the steps are as follows: first, dig a test pit, then inject water into the test pit using a water injection device until the water level is equal to the pit opening, calculate the pit volume by the water level difference, use water to replace the test pit volume, calculate the density by combining the soil mass, and compare it with the maximum dry density to obtain the compaction degree.

[0003] Existing irrigation devices lack automatic water shut-off functionality. Water flow control relies on manual valve operation. Due to variations in human reaction speed and operational precision, it's difficult to precisely stop the water flow when the test pit reaches the predetermined height. In practice, over- or under-injection of water is common, leading to errors in test pit volume measurement and ultimately affecting the accuracy of compaction calculations. This significant error makes it unreliable for providing reliable data support for engineering quality testing, resulting in limited practicality. Utility Model Content

[0004] This utility model relates to a water filling device for a compaction detector that can automatically control water shut-off. It has a water filling component that can inject water into the detection pit. By observing the changes in the water level inside the storage tank, the corresponding volume of the detection pit can be obtained. It is convenient and flexible to use. The water filling component has an automatic water shut-off function, which can automatically stop the water supply when the liquid level reaches a predetermined height, avoiding the occurrence of overfilling or underfilling. At the same time, the water shut-off height can be freely adjusted by the adjustment mechanism, which can adapt to different detection needs. It is highly flexible, accurate, adaptable and practical.

[0005] This utility model provides a watering device for a compaction detector that can automatically control water shut-off, specifically including: a positioning seat and a watering assembly. The watering assembly consists of a flow mechanism and an adjustment mechanism, and the positioning seat is installed on the top of the detection pit.

[0006] The circulation mechanism includes a water storage tank, a sealing cap, a level pipe, a water injection pipe, and an on / off valve. The water storage tank is fixedly installed on the top of the positioning seat, and the sealing cap is screwed onto the top of the water storage tank. The level pipe is fixedly installed on the side of the water storage tank, and its two ends are respectively connected to the top and bottom of the water storage tank. The water injection pipe is fixedly installed at the bottom of the water storage tank, and the on / off valve is rotatably connected inside the water injection pipe. The adjustment mechanism includes a telescopic sleeve and a positioning rod. The telescopic sleeve is inserted into the bottom of the water storage tank, and the positioning rod is rotatably connected to the bottom of the water storage tank.

[0007] Furthermore, the circulation mechanism also includes a water-sealed gas pipe, the two ends of which connect the inside and outside of the water storage tank.

[0008] Furthermore, a one-way valve is provided inside the top pipe of the water-sealed gas pipe.

[0009] Furthermore, the telescopic sleeve is sealed and inserted into the outside of the bottom pipe of the water seal gas pipe. When the telescopic sleeve is in its lowest operating position, the height of the telescopic sleeve is higher than the bottom of the water injection pipe.

[0010] Furthermore, the positioning rod has threads on its outer surface, and the positioning rod is screwed into the inside of the telescopic sleeve via the threaded rod body.

[0011] Furthermore, the top of the water storage tank is provided with a water inlet, and a sealing cap is located outside the water inlet.

[0012] This invention provides a watering device for a compaction detector that can automatically control water outages, and has the following beneficial effects:

[0013] The water filling component enables the filling of water into the testing pit. By observing the changes in the water level inside the storage tank, the corresponding volume of the testing pit can be determined. It is convenient and flexible to use. The water filling component also has an automatic water shut-off function, which can automatically stop the water flow when the liquid level reaches a predetermined height, avoiding overfilling or underfilling. At the same time, the water shut-off height can be freely adjusted by the adjustment mechanism to adapt to different testing needs, thus improving the flexibility, adaptability, accuracy and practicality of the device. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the structure of this utility model is shown.

[0018] Figure 2 A schematic diagram of the internal structure of this utility model is shown.

[0019] Figure 3 This utility model is shown Figure 2 Enlarged structural diagram of part A in the middle.

[0020] Figure 4 This utility model is shown Figure 2 Enlarged structural diagram of part B in the middle.

[0021] Figure 5 This diagram illustrates the flow direction of water and gas when water is injected into the testing pit according to this invention.

[0022] Figure 6 This invention provides a schematic diagram of the structure for detecting the liquid level inside the pit when the automatic water shut-off function is triggered.

[0023] List of reference numerals

[0024] 1. Positioning seat;

[0025] 2. Testing pit;

[0026] 3. Circulation mechanism; 301. Water storage tank; 3011. Water inlet; 302. Sealing cap; 303. Liquid level pipe; 304. Water inlet pipe; 305. Opening and closing valve; 306. Water seal gas pipe; 3061. Check valve;

[0027] 4. Adjustment mechanism; 401. Telescopic sleeve; 402. Positioning rod.

[0028] It should be noted that, Figure 5 The solid black arrows indicate the direction of water flow, while the hollow black arrows indicate the direction of gas flow. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] Please refer to Figures 1 to 6 Example 1:

[0031] This utility model proposes a water filling device for a compaction detector that can automatically control water shut-off, comprising: a positioning seat 1 and a water filling assembly, the water filling assembly being composed of a flow mechanism 3 and an adjustment mechanism 4, and the positioning seat 1 being installed on the top of the detection pit 2;

[0032] The circulation mechanism 3 includes a water storage tank 301, a sealing cap 302, a liquid level pipe 303, a water injection pipe 304, and an opening and closing valve 305. The water storage tank 301 is fixedly installed on the top of the positioning seat 1, and the sealing cap 302 is screwed onto the top of the water storage tank 301. The liquid level pipe 303 is fixedly installed on the side of the water storage tank 301, and the two ends of the liquid level pipe 303 are respectively connected to the top and bottom of the water storage tank 301. The water injection pipe 304 is fixedly installed on the bottom of the water storage tank 301, and the opening and closing valve 305 is rotatably connected to the inside of the water injection pipe 304. The adjustment mechanism 4 includes a telescopic sleeve 401 and a positioning rod 402. The telescopic sleeve 401 is inserted into the bottom of the water storage tank 301, and the positioning rod 402 is rotatably connected to the bottom of the water storage tank 301.

[0033] The circulation mechanism 3 also includes a water-sealed air pipe 306, which connects the inside and outside of the water storage tank 301 at both ends. In use, after setting the positioning seat 1 on top of the detection pit 2, water injection can begin. The top of the water storage tank 301 has a water inlet 3011, and a sealing cap 302 is located outside the water inlet 3011. After closing the opening / closing valve 305 and removing the sealing cap 302, water of a suitable depth is injected into the water storage tank 301 through the water inlet 3011. Then, the sealing cap 302 is tightened and installed at the water inlet 3011. At this time, under the action of the sealing cap 302, the inside of the water storage tank 301 is in a closed state. Therefore, after opening the opening / closing valve 305, water can be injected into the detection pit 2 under the action of the water injection pipe 304 and the water-sealed air pipe 306. The telescopic sleeve 401 is a sealed type. The telescopic sleeve 401 is inserted into the outside of the bottom pipe of the water seal air pipe 306. When the telescopic sleeve 401 is in its lowest working position, its height is higher than the bottom of the water injection pipe 304. During water injection, water can flow from the water injection pipe 304 into the interior of the test pit 2. Since the interior of the water storage tank 301 is closed, external gas will enter the interior of the water storage tank 301 through the telescopic sleeve 401 and the water seal air pipe 306 to ensure that the water can flow out normally. As the amount of water in the test pit 2 increases, the water level will slowly rise until it reaches the bottom of the telescopic sleeve 401. At this point, the water will block the telescopic sleeve 401 and the water seal air pipe 306, preventing external gas from entering the interior of the water storage tank 301. Consequently, the water will not continue to flow out of the interior of the water storage tank 301, achieving an automatic water shut-off function without the need for manual control of water shut-off, making it convenient and flexible to use.

[0034] The positioning rod 402 has threads on its outer surface and is screwed into the telescopic sleeve 401 via these threads. During use, the water level in the detection pit 2 can be controlled by adjusting the position of the telescopic sleeve 401 when water is stopped. When the positioning rod 402 is rotated, it moves the telescopic sleeve 401 up and down via its threads, thus changing the position of the bottom of the telescopic sleeve 401. This changes the water level in the detection pit 2 when water blocks the telescopic sleeve 401 and the water seal pipe 306, i.e., the trigger water level for automatic water stoppage. The timing of water stoppage is accurate and stable, improving the accuracy of subsequent compaction calculations.

[0035] The top of the water seal air pipe 306 is equipped with a one-way valve 3061. This design can prevent water from the water storage tank 301 from entering the water seal air pipe 306, ensuring stable operation.

[0036] The working principle of this embodiment is as follows: After the positioning seat 1 is set on the top of the detection pit 2, the water injection operation can begin. By adjusting the position of the telescopic sleeve 401, the water level inside the detection pit 2 when the water is stopped can be controlled. When the positioning rod 402 is rotated, the positioning rod 402 can drive the telescopic sleeve 401 to move up and down through the thread of the rod body, thereby changing the position of the bottom end of the telescopic sleeve 401, and thus changing the water level inside the detection pit 2 when the water body blocks the telescopic sleeve 401 and the water seal air pipe 306, that is, the trigger water level for automatic water stop. The specific setting position and height of the telescopic sleeve 401 can be determined by measuring instruments such as a level. After closing the opening and closing valve 305 and removing the sealing cap 302, water of a suitable depth is injected into the water storage tank 301 through the water inlet 3011. Then, the sealing cap 302 is tightened and installed at the water inlet 3011. At this time, under the action of the sealing cap 302, the inside of the water storage tank 301 is in a closed state, thus... After opening the valve 305, water can be injected into the test pit 2 through the water injection pipe 304 and the water seal air pipe 306. During water injection, water flows into the test pit 2 through the water injection pipe 304. Since the water storage tank 301 is closed, external gas will enter the water storage tank 301 through the telescopic sleeve 401 and the water seal air pipe 306 to ensure that the water can flow out normally. As the amount of water in the test pit 2 increases, the water level will slowly rise until it reaches the bottom of the telescopic sleeve 401. At this point, the water will block the telescopic sleeve 401 and the water seal air pipe 306, preventing external gas from entering the water storage tank 301. Consequently, the water will not continue to flow out of the water storage tank 301, achieving an automatic water shut-off function without the need for manual control. After the water is shut off, the change in the water level inside the water storage tank 301 can be observed through the level pipe 303 to obtain the required data for subsequent compaction calculations.

Claims

1. A watering device for a compaction tester capable of automatically controlling water outages, characterized in that, include: The positioning seat (1) and the water filling assembly, the water filling assembly being composed of a flow mechanism (3) and an adjustment mechanism (4), and the positioning seat (1) being installed on top of the detection pit (2); The circulation mechanism (3) includes a water storage tank (301), a sealing cap (302), a level pipe (303), a water injection pipe (304), and an opening and closing valve (305). The water storage tank (301) is fixedly installed on the top of the positioning seat (1), and the sealing cap (302) is screwed onto the top of the water storage tank (301) by threads. The level pipe (303) is fixedly installed on the side of the water storage tank (301), and both ends of the level pipe (303) are respectively connected to... The top and bottom of the water storage tank (301) are connected. The water injection pipe (304) is fixedly installed at the bottom of the water storage tank (301), and the opening and closing valve (305) is rotatably connected inside the water injection pipe (304). The adjustment mechanism (4) includes a telescopic sleeve (401) and a positioning rod (402). The telescopic sleeve (401) is inserted into the bottom of the water storage tank (301), and the positioning rod (402) is rotatably connected to the bottom of the water storage tank (301).

2. The irrigation device for a compaction detector capable of automatically controlling water shut-off according to claim 1, characterized in that, The circulation mechanism (3) also includes a water-sealed gas pipe (306), the two ends of which connect the inside and outside of the water storage tank (301).

3. A watering device for a compaction detector capable of automatically controlling water outages, as described in claim 2, is characterized in that... A one-way valve (3061) is provided inside the top pipe of the water seal gas pipe (306).

4. A watering device for a compaction detector capable of automatically controlling water shut-off, as described in claim 3, is characterized in that... The telescopic sleeve (401) is sealed and inserted into the outside of the bottom pipe of the water seal air pipe (306). When the telescopic sleeve (401) is in the lowest working position, the height of the telescopic sleeve (401) is higher than the bottom of the water injection pipe (304).

5. A watering device for a compaction detector capable of automatically controlling water shut-off, as described in claim 4, characterized in that, The positioning rod (402) has threads on the outside of its body, and the positioning rod (402) is screwed into the inside of the telescopic sleeve (401) through the thread.

6. A watering device for a compaction detector capable of automatically controlling water outages according to claim 5, characterized in that, The water storage tank (301) has a water inlet (3011) on its top, and a sealing cap (302) is located outside the water inlet (3011).