Condensity detection mechanism for foundation pit backfilling for constructional engineering

Abstract

The utility model provides a compactness detection mechanism for foundation pit backfilling for constructional engineering, and relates to the technical field of building construction, the compactness detection mechanism comprises a support frame and a density detection mechanism, the density detection mechanism is installed on the upper side of the support frame, and through the arrangement of the density detection mechanism, when the density detection mechanism needs to be used, the density detection mechanism can detect the density of the foundation pit backfilling. A fixed plate in a clamping plate can be pushed by a hydraulic push rod along a movable rail, so that during use, subsequent compactness detection cannot be affected, detection is more stable, and the situation that data errors are caused due to the fact that large stone particles exist on the surface of soil is avoided; the situation of inaccurate data detection caused by hard scraping of soil is reduced, a worker only needs to observe data analyzed by the data analyzer through the data display screen, and data measured by the compactness detection cone and the horizontal compression resistance detection disc can be gathered into the data analyzer for data analysis.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a compactness detection mechanism for foundation pit backfilling used in construction engineering. Background Art

[0002] The density detection mechanism of foundation pit backfill in construction projects is a device specially used to detect the density of foundation pit backfill soil. Its purpose is to ensure that the foundation pit backfill soil reaches the designed density requirements to ensure the safety and stability of the project. The density detection mechanism usually includes detection equipment and methods, as well as relevant detection standards and procedures. The equipment commonly used for density detection includes but is not limited to ring knife, sand filling method equipment, etc. The ring knife method is suitable for clay, sandy soil and sand without stone particles, while the sand filling method is suitable for soil with stone particles. The detection methods also include light compaction test and heavy compaction test. The light compaction test is usually used to obtain high values, while the heavy compaction test is used to obtain low values.

[0003] After searching, the patent number "CN219527596U" mentioned in the text that "the utility model discloses a compactness detection device for foundation pit backfill used in construction engineering, including a detection box, the inner wall of the detection box is provided with an adjustment mechanism, and the adjustment mechanism is provided with a detection mechanism." When in use, the cleaning mechanism provided in the detection box can not only clean the soil or impurities attached to the detection surface of the compactness detection device, so as to facilitate the subsequent better detection and use, but also play a guiding role in the detection, so as to facilitate better detection. At the same time, the protective mechanism provided in the detection mechanism can be used to clean the compactness detection device. The density testing equipment is buffered and protected when it is stored or carried to reduce the possibility of damage caused by shaking of the density testing equipment. At the same time, the electric telescopic rod and the support seat provided in the test box cooperate with each other to improve the stability of the test box, which is beneficial to improve the stability during testing. However, when conducting density testing on the foundation pit, the bearing capacity of the soil surface in the foundation pit is different from that inside the soil, and even the difference is also large in the same area. Therefore, in the process of density testing on the foundation pit, simply testing the soil surface or the internal compressive strength is likely to cause the problem of inaccurate data.

[0004] Therefore, we provide a density detection mechanism for foundation pit backfill in construction projects to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a compactness detection mechanism for foundation pit backfill used in construction engineering, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a density detection mechanism for foundation pit backfill in construction engineering, comprising a support frame and a density detection mechanism, wherein the density detection mechanism is installed on the upper side of the support frame;

[0007] The density detection mechanism includes a horizontal plane density detection component, a depth detection component, a counterweight component and a large stone cleaning component. The horizontal plane density detection component is installed in the middle of the support frame, and depth detection components are arranged on the left and right sides of the horizontal plane density detection component. The counterweight component is installed on the top of the support frame, and the large stone cleaning component is installed on the lower side of the support frame.

[0008] Preferably, the horizontal surface density detection assembly includes a counterweight hydraulic pump, a central axis hydraulic rod and a horizontal compression detection plate. The counterweight hydraulic pump is installed on the middle upper side of the support frame, the central axis hydraulic rod is installed on the lower side of the counterweight hydraulic pump, and the horizontal compression detection plate is installed on the end of the central axis hydraulic rod.

[0009] Preferably, the depth detection assembly includes a double set of hydraulic pumps, a double set of hydraulic rods and a tightness detection cone. A double set of hydraulic pumps is provided on the front and rear sides of the counterweight hydraulic pump, a double set of hydraulic rods is installed on the lower side of the double set of hydraulic pumps, and a tightness detection cone is installed at the end of the double set of hydraulic rods.

[0010] Preferably, the counterweight assembly includes a counterweight bin, a counterweight box, a data analyzer and a data display screen, the counterweight bin is installed on the outside of the counterweight hydraulic pump, the counterweight box is installed on the inside of the counterweight bin, the data analyzer is installed on the front side of the counterweight bin, and the data display screen is installed on the front side of the data analyzer.

[0011] Preferably, the data analyzer is electrically connected to the tightness detection cone and the horizontal compression resistance detection disk, and the data analyzer is electrically connected to the data display screen.

[0012] Preferably, the large stone cleaning assembly includes a card plate, a movable rail, a hydraulic push rod, a fixed plate and a cleaning plate. The card plate is installed on the lower side of the support frame, the movable rail is welded on the right side of the card plate, a hydraulic push rod is installed in the middle of the movable rail, a fixed plate is welded at the end of the hydraulic push rod, and a cleaning plate is installed at the end of the fixed plate.

[0013] Preferably, the cleaning plate is adhesively connected to the fixing plate, and the cleaning plate is made of rubber.

[0014] Preferably, a support assembly is provided on the outside of the large stone cleaning assembly, and the support assembly includes support legs and a resistance plate. Support legs are provided around the clamping plate, and resistance plates are welded to the lower sides of the support legs.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. Through the setting of the density detection mechanism, when it is needed, the counterweight hydraulic pump, due to its own large gravity, will push the horizontal compression test plate to contact the surface soil when pushing the central axis hydraulic rod downward. As the horizontal compression test plate and the soil produce an extrusion effect, the soil will be squeezed. The depth of soil extrusion and the magnitude of force are detected by the horizontal compression test plate to detect the density of the soil. The double-group hydraulic pump pushes the double-group hydraulic rods at the same time, and the compactness detection cone under the double-group hydraulic rods will be pushed into the soil. The density inside the soil is detected by detecting the depth of the push into the soil and the squeezing force of the soil on the compactness detection cone.

[0017] 2. Through the setting of the density detection mechanism, when it is needed, the fixed plate in the cardboard will be pushed along the moving rail by the hydraulic push rod, so that when in use, it will not affect the subsequent density detection, making the detection more stable, and will not cause data errors due to the presence of large particles of stone on the soil surface. Since the cleaning plate is made of rubber, the hard scraping of the soil is reduced during the cleaning process of the cleaning plate, resulting in inaccurate data detection. The staff only needs to observe the data analyzed by the data analyzer through the data display screen, and the data measured by the compactness detection cone and the horizontal compression test disk will be gathered in the data analyzer for data analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of the counterweight assembly of the utility model;

[0020] Figure 3 It is a schematic diagram of the combined structure of the horizontal surface density detection component and the depth detection component of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the large stone cleaning component of the utility model.

[0022] Numbers in the figure: 1. Support frame; 2. Density detection mechanism; 21. Horizontal surface density detection assembly; 211. Counterweight hydraulic pump; 212. Central axis hydraulic rod; 213. Horizontal compression detection plate; 22. Depth detection assembly; 221. Double group hydraulic pump; 222. Double group hydraulic rod; 223. Tightness detection cone; 23. Counterweight assembly; 231. Counterweight bin; 232. Counterweight box; 233. Data analyzer; 234. Data display screen; 24. Large stone cleaning assembly; 241. Card plate; 242. Moving rail; 243. Hydraulic push rod; 244. Fixed plate; 245. Cleaning plate; 3. Support assembly; 31. Support leg; 32. Resistance plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1

[0025] See also Figure 1-4 As shown, the utility model provides a technical solution: a density detection mechanism for foundation pit backfill used in construction engineering, comprising a support frame 1 and a density detection mechanism 2, wherein the density detection mechanism 2 is installed on the upper side of the support frame 1;

[0026] The density detection mechanism 2 includes a horizontal plane density detection component 21, a depth detection component 22, a counterweight component 23 and a large stone cleaning component 24. The horizontal plane density detection component 21 is installed in the middle of the support frame 1, and the depth detection components 22 are arranged on the left and right sides of the horizontal plane density detection component 21. The counterweight component 23 is installed on the top of the support frame 1, and the large stone cleaning component 24 is installed on the lower side of the support frame 1.

[0027] Furthermore, the horizontal surface density detection component 21 includes a counterweight hydraulic pump 211, a central axis hydraulic rod 212 and a horizontal compression detection disk 213. The counterweight hydraulic pump 211 is installed on the middle upper side of the support frame 1, the central axis hydraulic rod 212 is installed on the lower side of the counterweight hydraulic pump 211, and the horizontal compression detection disk 213 is installed on the end of the central axis hydraulic rod 212. When in use, the counterweight hydraulic pump 211 has a large gravity. When pushing the central axis hydraulic rod 212 downward, it will push the horizontal compression detection disk 213 to contact the surface soil. As the horizontal compression detection disk 213 produces an extrusion effect with the soil, the soil will be squeezed, and the soil density is detected by detecting the depth of soil extrusion and the force size through the horizontal compression detection disk 213.

[0028] Furthermore, the depth detection component 22 includes a double group of hydraulic pumps 221, a double group of hydraulic rods 222 and a tightness detection cone 223. The double group of hydraulic pumps 221 are arranged on the front and rear sides of the counterweight hydraulic pump 211, and the double group of hydraulic rods 222 are installed on the lower side of the double group of hydraulic pumps 221. The tightness detection cone 223 is installed at the end of the double group of hydraulic rods 222. When it is needed, the double group of hydraulic pumps 221 push the double group of hydraulic rods 222 at the same time, and the tightness detection cone 223 under the double group of hydraulic rods 222 will be pushed into the soil. By detecting the depth of the soil pushed into the soil and the squeezing force of the soil on the tightness detection cone 223, the density of the soil inside can be detected.

[0029] Furthermore, the counterweight assembly 23 includes a counterweight bin 231, a counterweight box 232, a data analyzer 233 and a data display screen 234. The counterweight bin 231 is installed on the outside of the counterweight hydraulic pump 211, the counterweight box 232 is installed on the inside of the counterweight bin 231, the data analyzer 233 is installed on the front side of the counterweight bin 231, and the data display screen 234 is installed on the front side of the data analyzer 233. When it is needed, it is only necessary to put the counterweight box 232 into the counterweight bin 231 to provide downward pressure on the whole, so as to facilitate the stability of the subsequent density detection.

[0030] Furthermore, the data analyzer 233 is electrically connected to the tightness detection cone 223 and the horizontal compression resistance detection disk 213, and the data analyzer 233 is electrically connected to the data display screen 234. When necessary, the staff only needs to observe the data analyzed by the data analyzer 233 through the data display screen 234, and the data measured by the tightness detection cone 223 and the horizontal compression resistance detection disk 213 will be gathered in the data analyzer 233 for data analysis.

[0031] Furthermore, the large stone cleaning component 24 includes a card plate 241, a movable rail 242, a hydraulic push rod 243, a fixed plate 244 and a cleaning plate 245. The card plate 241 is installed on the lower side of the support frame 1, and the movable rail 242 is welded to the right side of the card plate 241. A hydraulic push rod 243 is installed in the middle of the movable rail 242, and a fixed plate 244 is welded to the end of the hydraulic push rod 243. A cleaning plate 245 is installed at the end of the fixed plate 244. After being placed in the required position, the fixed plate 244 in the card plate 241 will be pushed by the hydraulic push rod 243 along the movable rail 242. In this way, when in use, it will not affect the subsequent density detection, thereby making the detection more stable and preventing data errors due to the presence of large stone particles on the soil surface.

[0032] Furthermore, the cleaning plate 245 and the fixed plate 244 are adhesively connected, and the cleaning plate 245 is made of rubber. Since the cleaning plate 245 is made of rubber, during the cleaning process of the cleaning plate 245, the hard scraping of the soil is reduced, resulting in inaccurate data detection.

[0033] Example 2

[0034] See also Figure 1 and Figure 3 As shown, compared with Example 1, as another implementation of the utility model, a support assembly 3 is arranged on the outer side of the large stone cleaning assembly 24, and the support assembly 3 includes support legs 31 and resistance plates 32. Support legs 31 are arranged around the clamping plate 241, and resistance plates 32 are welded on the lower sides of the support legs 31. When it is needed, since the resistance plates 32 have a large area, the support legs 31 will not be sunken in them due to their own gravity during the subsequent density detection process, thereby ensuring the stability of data detection.

[0035] Working principle: A compactness detection mechanism for backfilling of foundation pits for construction projects is moved to the working position. When in use, the first step is to bring the support frame 1 to the soil to be tested, and the resistance plate 32 under the support leg 31 is in contact with the soil. The second step is that the fixed plate 244 in the card plate 241 is pushed by the hydraulic push rod 243 and moves in the moving rail 242, and the cleaning plate 245 is driven by the fixed plate 244 to clean the large stone particles on the ground. The third step is to put the counterweight box 232 into the counterweight bin 231 and prepare it. Afterwards, the counterweight hydraulic pump 211 pushes the central axis hydraulic rod 212, driving the horizontal compression test plate 213 to contact the ground. At the same time, the double-group hydraulic pump 221 also inserts the compactness test cone 223 into the soil through the double-group hydraulic rod 222. The horizontal compression test plate 213 and the compactness test cone 223 summarize the test data information into the data analyzer 233. Finally, the staff observes the data through the data display screen 234. In this way, the use process of a compactness detection mechanism for foundation pit backfill in construction projects is completed.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A compactness detection mechanism for foundation pit backfill for construction engineering, comprising a support frame (1) and a density detection mechanism (2), characterized in that: A density detection mechanism (2) is installed on the upper side of the support frame (1); The density detection mechanism (2) comprises a horizontal surface density detection component (21), a depth detection component (22), a counterweight component (23) and a large stone cleaning component (24); the horizontal surface density detection component (21) is installed in the middle of the support frame (1); the depth detection components (22) are arranged on the left and right sides of the horizontal surface density detection component (21); the counterweight component (23) is installed at the top of the support frame (1); and the large stone cleaning component (24) is installed at the bottom of the support frame (1).

2. A compactness detection mechanism for foundation pit backfill for construction engineering according to claim 1, characterized in that: The horizontal surface density detection component (21) comprises a counterweight hydraulic pump (211), a central axis hydraulic rod (212) and a horizontal compression detection plate (213); the counterweight hydraulic pump (211) is installed on the middle upper side of the support frame (1); the central axis hydraulic rod (212) is installed on the lower side of the counterweight hydraulic pump (211); and the horizontal compression detection plate (213) is installed on the end of the central axis hydraulic rod (212).

3. A compactness detection mechanism for foundation pit backfill for construction engineering according to claim 2, characterized in that: The depth detection assembly (22) comprises a double set of hydraulic pumps (221), a double set of hydraulic rods (222) and a tightness detection cone (223); the double set of hydraulic pumps (221) are arranged on both the front and rear sides of the counterweight hydraulic pump (211); the double set of hydraulic rods (222) are installed on the lower side of the double set of hydraulic pumps (221); and the tightness detection cone (223) is installed at the end of the double set of hydraulic rods (222).

4. A compactness detection mechanism for backfilling a foundation pit for construction engineering according to claim 2, characterized in that: The counterweight assembly (23) comprises a counterweight bin (231), a counterweight box (232), a data analyzer (233) and a data display screen (234); the counterweight bin (231) is installed on the outside of the counterweight hydraulic pump (211); the counterweight box (232) is installed on the inside of the counterweight bin (231); the data analyzer (233) is installed on the front side of the counterweight bin (231); and the data display screen (234) is installed on the front side of the data analyzer (233).

5. A compactness detection mechanism for backfilling a foundation pit for construction engineering according to claim 4, characterized in that: The data analyzer (233) is electrically connected to the tightness detection cone (223) and the horizontal compression resistance detection disk (213), and the data analyzer (233) is electrically connected to the data display screen (234).

6. A compactness detection mechanism for foundation pit backfill for construction engineering according to claim 1, characterized in that: The large stone cleaning component (24) comprises a card plate (241), a movable rail (242), a hydraulic push rod (243), a fixed plate (244) and a cleaning plate (245); the card plate (241) is installed on the lower side of the support frame (1); the movable rail (242) is welded to the right side of the card plate (241); the hydraulic push rod (243) is installed in the middle of the movable rail (242); the fixed plate (244) is welded to the end of the hydraulic push rod (243); and the cleaning plate (245) is installed at the end of the fixed plate (244).

7. A compactness detection mechanism for backfilling a foundation pit for construction engineering according to claim 6, characterized in that: The cleaning plate (245) and the fixing plate (244) are connected by adhesion, and the cleaning plate (245) is made of rubber.

8. A compactness detection mechanism for foundation pit backfill for construction engineering according to claim 6, characterized in that: A support assembly (3) is arranged on the outside of the large stone cleaning assembly (24), and the support assembly (3) comprises support legs (31) and a resistance plate (32). The support legs (31) are arranged on all four sides of the clamping plate (241), and the lower sides of the support legs (31) are welded with a resistance plate (32).

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