Foundation detection device for construction engineering

Abstract

The utility model discloses a kind of foundation detection devices for construction engineering, which belongs to the technical field of construction engineering foundation detection.It mainly includes base, and base is slidably connected with lifting frame, and lifting frame is slidably connected with detection mechanism and measuring mechanism respectively on it, and detection mechanism includes platform one, and two slides are connected at the bottom of platform one, and chute plate is connected at one side of platform one upper portion, and hole three is opened on platform one above chute plate bottom, and gear plate is slidably connected in chute plate, and threaded rod is connected at the bottom of gear plate, and limit recess is opened on the surface of threaded rod, and nut is screwed on threaded rod, and spring is nestedly connected with threaded rod, and one end of spring is abutted with platform one bottom, and the other end of spring is abutted with nut.The utility model detection mechanism is matched with gear plate through half gear, and ground is knocked through the elastic force of spring, and the error of device itself is reduced, and the depth of ground depression can also be measured through measuring mechanism, which is more practical and convenient.

Description

Technical Field

[0001] This utility model belongs to the field of foundation testing technology for building engineering, and more specifically, it relates to a foundation testing device for building engineering. Background Technology

[0002] In construction engineering, parameters such as the bearing capacity and density of the foundation directly determine the safety of the superstructure, and its testing is a core aspect of project quality control. Existing foundation testing devices often have limitations: traditional equipment is bulky and poorly portable, requiring time for on-site transport and deployment; some devices are not well-suited for complex geological conditions such as fill soil layers and gravel layers, easily leading to inaccurate test data; and most require manual data processing afterward, making real-time feedback difficult and impacting construction efficiency and decision-making.

[0003] Patent CN223318798U discloses a fixing device for foundation testing in building engineering, including a base with limiting holes on its inner side. In this fixing device, the user fixes the base's position through the limiting holes. When the height of the device needs adjustment, the user adjusts the position of the telescopic rod inside the positioning rod, then uses a fastening screw threaded into the positioning rod and inserts it into the side locking hole to limit the telescopic rod, thus achieving height adjustment and fixing. When the position of the tamping hammer needs adjustment, a servo motor starts, driving the ball screw to rotate, causing the ball nut and tamping hammer to move left and right, thus adjusting the hammer's position. A hydraulic device starts, driving the hydraulic push rod to extend and retract, causing the tamping hammer to repeatedly strike the foundation surface. By observing the settlement of the surface at the impact point, the hardness of the surface is detected.

[0004] While the aforementioned patent solves the detection problem, the method of hammering the ground with a hydraulic push rod generates friction and errors as the push rod moves. Furthermore, after the hammering, other equipment is needed to measure the settlement, which is very inconvenient.

[0005] To address the aforementioned technical problems, this application proposes a solution. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a foundation testing device for building engineering. Its testing mechanism uses a half gear and a toothed plate to strike the ground through the elastic force of a spring, reducing the error of the device itself. In addition, it can also measure the depth of the depression in the ground through a measuring mechanism, making it more practical and convenient.

[0007] A foundation testing device for building engineering includes a base, a lifting frame slidably connected to the base, and a testing mechanism and a measuring mechanism slidably connected to the lifting frame. The testing mechanism includes a platform, with two sliding seats fixedly connected to the bottom of the platform. A sliding groove plate is fixedly connected to one side of the upper part of the platform. A hole three is opened on the bottom of the platform, and two limiting protrusions are symmetrically fixedly connected to the edge of the hole three. A toothed plate is slidably connected in the sliding groove plate, and a threaded rod is fixedly connected to the bottom of the toothed plate. A limiting groove is opened on the surface of the threaded rod, and the limiting groove and the limiting protrusions are connected to each other. The sliding connection includes a nut screwed onto the threaded rod, a spring nested on the threaded rod, one end of the spring abutting against the bottom of the platform, and the other end of the spring abutting against the nut. A threaded hole is formed on one side of the platform, and three holes are formed on the other end of the sliding plate. A shaft is rotatably connected to each hole, and a half gear and a bevel gear are fixedly connected to the shaft. The half gear meshes with a gear plate for transmission. A drive device is fixedly connected to one side of the upper part of the platform, and a bevel gear is fixedly connected to the rotating end of the drive device, meshing with the bevel gear.

[0008] Preferably, the measuring mechanism includes a platform two, with two slide blocks two fixedly connected to the bottom of the platform two. A threaded hole two is provided on one side of the upper part of the platform two, and a measuring gear column is slidably connected to the other side of the upper part of the platform two. A shaft two is rotatably connected to one end of the measuring gear column on the platform two. A gear one is fixedly connected to one end of the shaft two, and a rotating handle one is fixedly connected to the other end. The gear one meshes with the measuring gear column for transmission. A pin hole is provided on the shaft two near the rotating handle one side. A pin hole is provided on the platform two at the same position as the pin hole of the shaft two. A positioning pin is movably connected in the pin hole. A scale is fixedly connected to one side of the bottom of the measuring gear column, and the bottom of the measuring gear column is semi-circular.

[0009] Preferably, a fixing hole is provided around the base, four hollow columns are fixedly connected to the upper part of the base, a positioning rod is movably connected above the hollow columns, an elongated hole is provided on the base in the middle of the hollow columns, and a lifting frame is slidably connected to the hollow columns.

[0010] Preferably, the lifting frame has multiple positioning holes at the contact position with the hollow column, the positioning rod is movably connected to the positioning holes, two slide rails are fixedly connected to the upper part of the lifting frame, the slide rails are slidably connected to the slide base and the slide base two, respectively, a driving device two is also fixedly connected to one side of the upper part of the lifting frame, a lead screw is fixedly connected to the rotating end of the driving device two, one end of the lead screw is rotatably connected to the lifting frame, the lead screw is screwed to the threaded hole one and the threaded hole two, a telescopic lead screw one is rotatably connected to one side of the upper part of the base, a rotating handle two is screwed to the upper part of the telescopic lead screw one, another telescopic lead screw two is screwed to the upper part of the rotating handle two, and the upper part of the telescopic lead screw two is fixedly connected to the slide rail.

[0011] Preferably, the bottom dimensions of platform one and platform two are the same, which is square, the length of platform one is equal to one-third of the length of the slide rail, and the threaded hole one and threaded hole two are in contact.

[0012] Preferably, the striking head and measuring toothed post are located directly above the elongated hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are: The detection mechanism in this invention uses the cooperation of a half-gear and a toothed plate, and the spring force itself to impact the ground. Compared with the use of hydraulic telescopic rods or pneumatic rods, the resulting error is smaller, and the test is more accurate. Furthermore, the use of a measuring mechanism allows for immediate measurement of the groove depth after the impact head creates a groove in the ground, eliminating the need for third-party measuring tools and preventing errors in the results caused by moving the device.

[0014] Platform 1 and Platform 2 are the same length and one-third the length of slide rail 302. This ensures that when one platform moves to the middle, the other is on one side, and that the measuring pin of Platform 2 can accurately land on the depression in the ground after the tapping head on Platform 1 strikes the surface. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is an exploded structural diagram of the detection mechanism in this utility model; Figure 4 This is a schematic diagram of the structure of Platform 1 from another perspective; Figure 5 A schematic diagram showing the specific structure of the threaded rod and the toothed plate; Figure 6 This is a schematic diagram of the measuring mechanism.

[0016] In the diagram, 1. Detection mechanism; 101. Platform 1; 102. Slide; 103. Threaded hole 1; 104. Slide plate; 105. Hole 1; 107. Striking head; 108. Threaded rod; 1081. Limiting groove; 109. Nut; 110. Gear plate; 111. Spring; 112. Shaft 1; 113. Half gear; 114. Bevel gear 1; 115. Bevel gear 2; 116. Drive device 1; 117. Hole 3; 118. Limiting protrusion; 2. Measuring mechanism; 201. Platform 2; 202. Threaded hole 2; 203. Measuring gear; 2031. Scale; 204. Gear 1; 205. Shaft 2; 206. Locating pin; 207. Rotating handle 1; 208. Slide 2; 3. Lifting frame; 301. Positioning hole; 302. Slide rail; 303. Lead screw; 304. Drive device two; 4. Base; 401. Hollow column; 402. Long hole; 403. Positioning rod; 404. Fixing hole; 5. Telescopic lead screw one; 501. Rotating handle two; 502. Telescopic lead screw two. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings: The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] like Figures 1 to 6 As shown, a foundation testing device for building engineering includes a base 4, a lifting frame 3 slidably connected to the base 4, and a testing mechanism 1 and a measuring mechanism 2 slidably connected to the lifting frame 3. Figure 3As shown, the detection mechanism 1 includes a platform 101. Two slide blocks 102 are fixedly connected to the bottom of the platform 101. A slide plate 104 is fixedly connected to one side of the upper part of the platform 101. A hole 117 is opened on the platform 101 at the bottom of the slide plate 104. Two limiting protrusions 118 are symmetrically fixedly connected to the edge of the hole 117. A toothed plate 110 is slidably connected in the slide plate 104. A threaded rod 108 is fixedly connected to the bottom of the toothed plate 110. A limiting groove 1081 is opened on the surface of the threaded rod 108. The limiting groove 1081 is slidably connected to the limiting protrusions 118 to prevent the toothed plate 110 from rotating and not meshing with the half gear 113. A nut 109 is screwed onto the threaded rod 108, and a spring 111 is nested on the threaded rod 108. One end of the spring 111 abuts against the bottom of the platform 101, and the other end of the spring 111 abuts against the nut 109. Adjusting the distance between the nut 109 on the threaded rod 108 and the platform 101 can also adjust the elastic force of the spring 111. Under normal circumstances, the spring 111 should be kept in its default state. A threaded hole 103 is provided on one side platform 101 of the slide plate 104, and three holes 105 are provided on the other end of the slide plate 104. A shaft 112 is rotatably connected to the hole 105, and a half gear 113 and a bevel gear 114 are fixedly connected to the shaft 112. The half gear 113 meshes with the toothed plate 110 for transmission. A drive device 116 is fixedly connected to one side of the upper part of the platform 101. A bevel gear 115 is fixedly connected to the rotating end of the drive device 116, and the bevel gear 115 meshes with the bevel gear 114 for transmission. In this utility model, the spring 111 and the striking head 107 are replaceable. Different springs 111 correspond to different pressures and have different striking effects on the ground. The striking head 107 is also replaceable, and the force-bearing area is different when different sizes of striking heads 107 are used.

[0019] like Figure 6 As shown, the measuring mechanism 2 includes a platform 201. Two slides 208 are fixedly connected to the bottom of the platform 201. A threaded hole 202 is opened on one side of the upper part of the platform 201. A measuring gear 203 is slidably connected to the other side of the upper part of the platform 201. A shaft 205 is rotatably connected to one end of the measuring gear 203 on the platform 201. A gear 204 is fixedly connected to one end of the shaft 205, and a rotating handle 207 is fixedly connected to the other end. The gear 204 meshes with the measuring gear 203 for transmission. A pin hole is opened on the side of the shaft 205 near the rotating handle 207. A pin hole is opened on the platform 201 at the same position as the pin hole of the shaft 205. A positioning pin 206 is movably connected in the pin hole. A scale 2031 is fixedly connected to one side of the bottom of the measuring gear 203. The bottom of the measuring gear 203 is semi-circular. The function of the positioning pin 206 is to fix the measuring tooth post 203 during the movement of this utility model, so as to prevent the ground from wearing and damaging the measuring tooth post 203 during the movement.

[0020] like Figure 1 As shown, a fixing hole 404 is provided around each of the four sides of the base 4 to fix the base 4 to the ground and prevent displacement during operation, which would cause errors in the results. Four hollow columns 401 are fixedly connected to the upper part of the base 4, and a positioning rod 403 is movably connected above the hollow columns 401. An elongated hole 402 is provided on the base 4 in the middle of the hollow column 401 to facilitate the tapping head 107 and measuring tooth column 203 above the elongated hole 402 to measure the ground. A lifting frame 3 is slidably connected to the hollow column 401.

[0021] like Figure 1 As shown, multiple positioning holes 301 are provided at the contact position between the lifting frame 3 and the hollow column 401. The positioning rod 403 is movably connected to the positioning holes 301. Two slide rails 302 are fixedly connected to the upper part of the lifting frame 3. The slide rails 302 are slidably connected to the slide block 102 and the slide block 208 respectively, which can reduce friction and facilitate movement. A second drive device 304 is also fixedly connected to one side of the upper part of the lifting frame 3. A lead screw 303 is fixedly connected to the rotating end of the second drive device 304. One end of the lead screw 303 is rotatably connected to the lifting frame 3. The lead screw 303 is screwed to the first threaded hole 103 and the second threaded hole 202 respectively. The rotation of the lead screw 303 drives the first platform 101 and the second platform 201 to move. A telescopic screw 5 is rotatably connected to one side of the upper part of the base 4. A rotating handle 501 is screwed onto the upper part of the telescopic screw 5. Another telescopic screw 502 is screwed onto the upper part of the rotating handle 501. The upper part of the telescopic screw 502 is fixedly connected to the slide rail 302. The lifting frame 3 can be raised or lowered by rotating the rotating handle 501.

[0022] Platform 101 and Platform 201 have the same bottom dimensions, both being square. The length of Platform 101 is equal to one-third the length of the slide rail 302. This design allows Platform 101 to move to the middle position while Platform 201 moves to one side, and vice versa. This allows the striking head 107 and the measuring toothed column 203 to overlap, eliminating the need for precise alignment and preventing misalignment. Threaded holes 103 and 202 are in contact. The striking head 107 and measuring toothed column 203 are located directly above the elongated hole 402, facilitating the testing of the foundation.

[0023] Those skilled in the art can use existing technologies they possess, such as installing appropriate mechanical limit switches or photoelectric sensors, to limit the specified positions of each actuator during the following operation process; to achieve automated operation, this utility model can use numerical control technology or PLC to control the actions of each actuator.

[0024] Working process: After moving this utility model to the place where it needs to be measured, use bolts to fix and connect this utility model to the ground in the fixing hole 404.

[0025] Start the drive unit 304 to rotate the lead screw 303, moving the detection mechanism 1 and the measuring mechanism 2, so that the striking head 107 in the detection mechanism 1 is located at the middle position along the length of the base 4. Rotate the handle 501 to move the lifting frame 3 downwards, so that the striking head 107 gently touches the foundation and then stops rotating. Rotate the handle 501 to insert the positioning rod 403 into the positioning hole 301 to fix the lifting frame 3.

[0026] Start drive device 116, which drives bevel gear 2 115 to rotate. Bevel gear 2 115 drives bevel gear 114 to rotate. Shaft 112 connected to bevel gear 114 drives half gear 113 to rotate. The rotation of half gear 113 causes toothed plate 110 to move upward, and spring 111 begins to be compressed. When half gear 113 is not in contact with toothed plate 110, the elastic force of spring 111 drives the striking head 107 on the front of threaded rod 108 to strike the foundation, creating a dent in the foundation. Then, drive device 2 304 reverses the screw 303, causing... The measuring pinion 203 in measuring mechanism 2 moves to above the depression in the foundation. Rotating the handle 207 causes gear 204 to move the measuring pinion 203 downwards. When the bottom of the measuring pinion 203 contacts the bottom of the depression, it stops moving downwards. At this point, the reading on the scale 2031 is read (the reading on the scale 2031 gradually increases from bottom to top, and the zero mark of the scale 2031 is flush with the upper surface of the base 4; the circular part at the bottom of the measuring pinion 203 has the same thickness as the base 4), thus measuring the depth of the depression. The compressive strength of the foundation is measured by the spring force and the depression and depth created by the tapping head 107 per unit area.

[0027] Finally, although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A foundation testing device for building engineering, comprising a base (4), a lifting frame (3) slidably connected to the base (4), and a testing mechanism (1) and a measuring mechanism (2) slidably connected to the lifting frame (3), characterized in that: The detection mechanism (1) includes a platform (101), two slide blocks (102) are fixedly connected to the bottom of the platform (101), a slide plate (104) is fixedly connected to one side of the upper part of the platform (101), a hole (117) is opened on the bottom of the platform (101) of the slide plate (104), two limiting protrusions (118) are symmetrically fixedly connected to the edge of the hole (117), a toothed plate (110) is slidably connected in the slide plate (104), a threaded rod (108) is fixedly connected to the bottom of the toothed plate (110), a limiting groove (1081) is opened on the surface of the threaded rod (108), the limiting groove (1081) is slidably connected to the limiting protrusion (118), a nut (109) is screwed on the threaded rod (108), and a spring is nested on the surface of the threaded rod (108). (111), one end of the spring (111) abuts against the bottom of the platform (101), and the other end of the spring (111) abuts against the nut (109). A threaded hole (103) is provided on one side of the slide plate (104) of the platform (101), and three holes (105) are provided on the other end of the slide plate (104). A shaft (112) is rotatably connected to the hole (105). A half gear (113) and a bevel gear (114) are fixedly connected to the shaft (112). The half gear (113) meshes with the toothed plate (110) for transmission. A drive device (116) is fixedly connected to one side of the upper part of the platform (101). A bevel gear (115) is fixedly connected to the rotating end of the drive device (116). The bevel gear (115) meshes with the bevel gear (114) for transmission.

2. The foundation testing device for building engineering according to claim 1, characterized in that: The measuring mechanism (2) includes a platform two (201), with two slide blocks two (208) fixedly connected to the bottom of the platform two (201). A threaded hole two (202) is provided on one side of the upper part of the platform two (201), and a measuring gear column (203) is slidably connected to the other side of the upper part of the platform two (201). A shaft two (205) is rotatably connected to one end of the measuring gear column (203) on the platform two (201). A gear one (204) is fixedly connected to one end of the shaft two (205), and the other end... A rotating handle (207) is fixedly connected to the end. The gear (204) meshes with the measuring gear (203) for transmission. A pin hole is opened on the shaft (205) near the rotating handle (207). A pin hole is opened on the platform (201) at the same position as the pin hole on the shaft (205). A positioning pin (206) is movably connected in the pin hole. A scale (2031) is fixedly connected to one side of the bottom of the measuring gear (203). The bottom of the measuring gear (203) is semi-circular.

3. The foundation testing device for building engineering according to claim 1, characterized in that: The base (4) has a fixing hole (404) around its perimeter. Four hollow columns (401) are fixedly connected to the upper part of the base (4). A positioning rod (403) is movably connected above the hollow columns (401). A long hole (402) is opened on the base (4) in the middle of the hollow column (401). A lifting frame (3) is slidably connected to the hollow column (401).

4. The foundation testing device for building engineering according to claim 3, characterized in that: The lifting frame (3) has multiple positioning holes (301) at the contact position with the hollow column (401). The positioning rod (403) is movably connected to the positioning holes (301). Two slide rails (302) are fixedly connected to the upper part of the lifting frame (3). The slide rails (302) are slidably connected to the slide block (102) and the slide block two (208) respectively. A driving device two (304) is also fixedly connected to one side of the upper part of the lifting frame (3). A lead screw (304) is fixedly connected to the rotating end of the driving device two (304). 03), one end of the lead screw (303) is rotatably connected to the lifting frame (3), the lead screw (303) is screwed to the threaded hole one (103) and the threaded hole two (202) respectively, a telescopic lead screw one (5) is rotatably connected to one side of the upper part of the base (4), a rotating handle two (501) is screwed to the upper part of the telescopic lead screw one (5), another telescopic lead screw two (502) is screwed to the upper part of the rotating handle two (501), and the upper part of the telescopic lead screw two (502) is fixedly connected to the slide rail (302).

5. A foundation testing device for building engineering according to claim 4, characterized in that: Platform 1 (101) and Platform 2 (201) have the same bottom dimensions and are square. The length of Platform 1 (101) is equal to one-third of the length of the slide rail (302). Threaded hole 1 (103) and threaded hole 2 (202) are in contact.

6. A foundation testing device for building engineering according to claim 4, characterized in that: Directly above the elongated hole (402) are the striking head (107) and the measuring toothed column (203).

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