Soil compaction test device for constructional engineering detection

Abstract

The invention discloses a soil compaction test device for constructional engineering detection, and relates to the technical field of soil compaction test devices, the soil compaction test device comprises a compaction assembly, the upper end of the compaction assembly is fixedly provided with a compaction hammer assembly, and the bottom of the compaction assembly is fixedly provided with a fixed base. According to the soil compaction test device for constructional engineering detection, the device can recognize the thickness of soil and automatically adjust and improve the uniformity of the compaction force of the device to the soil, then the accuracy of a soil compaction test is improved, one or more additional hammers are installed at the bottom of the compaction base hammer, the quality of the compaction base hammer is improved, and the construction quality is improved. Therefore, the compaction force of the compaction hammer assembly is increased, the device can adapt to different types and scenes, the flexibility of the device is improved, the compaction hammer assembly can automatically calibrate the compaction position, the device can adapt to compaction cylinders with different diameters, manual calibration is reduced, the automation of the device is improved, and the efficiency of a soil compaction test is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil compaction test devices, in particular to a soil compaction test device for construction engineering detection. Background Art

[0002] Compaction test refers to a method of using a hammer to compact soil samples to understand the compaction characteristics of the soil. This method is to use different compaction works to hammer soil samples with different water contents, and measure the corresponding dry bulk density, so as to obtain the maximum dry bulk density and the optimal water content, and provide a basis for the design and construction of fill projects. These parameters are crucial to the design of construction projects (such as roadbed, dams, foundations, etc.), so as to ensure that the soil reaches the required density and strength during construction. In the soil compaction test, water is first added to the soil to be tested, and the soil to be tested is gradually added to the compaction cylinder. The soil is compacted by allowing the compaction hammer to fall freely downward at a specific height (to ensure that the strength of each strike is equal), simulating the actual situation of workers using a vibrating rammer to compact the soil under construction conditions. Finally, after the soil is taken out, the density of the soil in a specific volume and the water content in the soil are tested at the same time to obtain test data.

[0003] Existing soil compaction tests usually use soil compaction instruments for testing, but in order to ensure that the compaction test pressure is evenly distributed, it is usually necessary to divide the soil into three to five portions and add them into the compaction cylinder separately, and compact them in layers. This causes the soil thickness in the compaction cylinder to gradually thicken as the compaction test progresses, while the height at which the heavy hammer falls does not change. Therefore, in fact, the compaction strength of the compaction hammer on each layer of soil is different. The distance between the bottom layer of soil and the compaction hammer before it falls is larger, and the compaction strength is larger, while the distance between the top layer of soil and the compaction hammer before it falls is smaller, and the compaction strength is smaller, resulting in errors in the compaction strength of the compaction hammer on soils at different heights, affecting the accuracy of the soil compaction test. Each time the soil is added to the compaction cylinder and compacted after calibration, it will affect the efficiency of the soil compaction, which has certain adverse effects on people's use process. In order to address the deficiencies of the prior art, we propose a soil compaction test device for construction engineering inspection. Summary of the invention

[0004] The main purpose of the present invention is to provide a soil compaction test device for construction engineering detection, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A soil compaction test device for construction engineering inspection comprises a compaction assembly, a compaction hammer assembly is fixedly installed on the upper end of the compaction assembly, a fixed base is fixedly installed on the bottom of the compaction assembly, and the compaction hammer assembly is located above the fixed base;

[0007] The compacting assembly includes a support frame, a driving cover is fixedly installed on the upper end of the support frame, a control panel is fixedly installed on the side of the driving cover, limit frames are fixedly installed on both sides of the support frame, a detection rod is movably sleeved on the outer surface of the limit frame, the compacting hammer assembly is movably sleeved on the outer surface of the detection rod, and a clamping assembly is fixedly installed on the lower end of the driving cover;

[0008] The detection rod includes a detection rod, a rotary encoder is fixedly installed inside the lower end of the detection rod, a rotating plate is fixedly installed on the output end of the rotary encoder, the rotating plate is rotatably installed on the bottom of the detection rod, a transmission wheel is fixedly sleeved on the outer surface of the rotating plate, a movable cavity is opened on the bottom surface of the rotating plate, a detection spring is fixedly installed inside the movable cavity, a pressing block is fixedly installed on the bottom of the detection spring, the pressing block is movably sleeved inside the movable cavity, a spring button is fixedly installed on the top of the inner wall of the movable cavity, and the pressing block is fixedly installed on the bottom of the spring button.

[0009] Preferably, a driving motor is fixedly installed on the left side of the upper end of the driving cover, a driving sprocket is fixedly installed on the output end of the driving motor, a transmission chain is meshingly installed on the outer surface of the driving sprocket, a driving sprocket is rotatably installed on the upper end of the driving cover, the upper end of the transmission chain is meshingly installed on the outer surface of the transmission sprocket, and pushing blocks are fixedly installed on both ends of the transmission chain.

[0010] Preferably, a pressing wheel is fixedly installed on the top of the inner wall of the driving cover, a sliding block is fixedly installed on the top of the detecting rod, two ends of the sliding block are respectively movably sleeved on the outer surfaces of the limiting frames on both sides, a fixing frame is fixedly installed on the top of the sliding block, a movable block is movably sleeved inside the fixing frame, a cushion block is fixedly installed on the bottom of the left side of the movable block, the cushion block is located above the pushing block, the right side of the top of the movable block is an inclined surface, support springs are fixedly installed on both ends of the right side of the movable block, the right side of the support spring is fixedly installed on the inner wall of the right side of the fixed frame, a ranging sensor transmitter is fixedly installed on the right side of the sliding block, and the pressing wheel is located above the right side of the movable block.

[0011] Preferably, the clamping assembly includes two electric lifting rods, which are respectively fixedly mounted on both sides of the bottom surface of the driving cover, a clamping frame is fixedly mounted on the top of the electric lifting rod, a distance sensor receiver is fixedly mounted on the right side inside the clamping frame, and the distance sensor receiver is located below the distance sensor transmitter, sliding grooves are provided on both sides of the clamping frame, sliding plates are slidably mounted on both sides of the sliding grooves, electromagnets are fixedly mounted on the bottom of the sliding plates on both sides, the electromagnets on both sides are magnetically connected to each other and electrically connected to the spring button, clamping springs are fixedly mounted on the opposite sides of the sliding plates on both sides, the clamping springs are located between the sliding plates and the clamping frame, clamping strips are fixedly mounted on the opposite sides of the sliding plates on both sides, the upper and lower sides of the clamping strips are inclined surfaces, and the sliding plates on both sides are respectively located on both sides of the detection rod.

[0012] Preferably, the compaction hammer assembly includes a compaction base hammer, a clamping ball is fixedly installed on the top of the compaction base hammer, the compaction base hammer and the clamping ball are movably sleeved on the outer surface of the detection rod, an additional hammer is detachably installed on the bottom of the compaction base hammer, the bottoms of the compaction base hammer and the additional hammer are both provided with fixing components, connecting rods are fixedly installed on both sides of the top of the additional hammer, a placement groove is opened on one side of the additional hammer, the placement groove is sleeved on the outer surface of the detection rod, and a clamping block is fixedly installed on the top of the additional hammer away from the placement groove.

[0013] Preferably, the number of the additional hammers is several, and the several additional hammers are detachably mounted on the bottom of the compaction base hammer through a fixing assembly.

[0014] Preferably, the fixing assembly includes a movable groove, the interior of the movable groove is movably sleeved with a supporting connecting plate, both ends of the supporting connecting plate are fixedly installed with clamping bolts, the outer surface of one end of the clamping bolt is movably sleeved with a sleeve spring, and the sleeve spring is located between the supporting connecting plate and the movable groove, and limiting grooves are provided on both sides of the bottom of the compaction base hammer and the additional hammer, and an embedded groove is provided on one side of the bottom of the compaction base hammer and the additional hammer.

[0015] Preferably, one side of the compaction base hammer and the additional hammer is respectively threadedly installed with a fixing bolt, the fixing bolt is movably installed on the left side of the supporting connecting plate, the connecting rod is plugged into the inside of the limiting groove, the clamping block is plugged into the inside of the embedded groove, the fixing bolt is threadedly installed in the inside of the clamping block, and the clamping bolt is plugged into the inside of the connecting rod.

[0016] Preferably, the fixed base includes a supporting base, the supporting base is fixedly mounted on the bottom of the supporting frame, a moving motor is fixedly mounted on one side of the bottom of the supporting base, a rotating screw is fixedly mounted on the output end of the moving motor, the rotating screw is rotatably mounted on the bottom end inside the supporting base, a sliding seat is slidably mounted inside the supporting base, the bottom thread of the sliding seat is mounted on the outer surface of the rotating screw, a rotating motor is fixedly mounted inside the sliding seat, a rotating disk is fixedly mounted on the output end of the rotating motor, the top of the sliding seat is rotatably mounted on the rotating disk, and mounting rods are fixedly mounted on both sides of the top of the rotating disk.

[0017] Preferably, a compaction cylinder is detachably mounted on the top of the rotating disk, a mounting ring is placed on the top of the compaction cylinder, and two sides of the mounting ring are fixed to the top of the mounting rod by bolts.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, a detection rod is provided to detect the thickness of the soil inside the compaction cylinder before the compaction hammer assembly compacts the soil inside the compaction cylinder. The compaction hammer assembly can automatically adjust the height of the compaction hammer assembly according to the thickness and height of the soil by using a clamping assembly, so that the device can identify the thickness of the soil and automatically adjust it, thereby improving the uniformity of the device's compaction strength on the soil, thereby improving the accuracy of the soil compaction test.

[0020] 2. In the present invention, by setting up multiple additional hammers, the quality of the compaction base hammer can be improved according to the type of soil and the test scenario by installing one or more additional hammers at the bottom of the compaction base hammer, thereby increasing the striking strength of the compaction hammer assembly, making the device adaptable to different types and scenarios, and improving the flexibility of the device.

[0021] 3. In the present invention, by setting a rotary encoder, when the detection rod descends to the inside of the compaction cylinder, the rotating plate is in a suspended state inside the compaction cylinder. When the inner wall of the compaction cylinder contacts the transmission wheel, it will drive the rotating plate to rotate at the bottom of the detection rod. When the rotary encoder senses the rotation of the rotating plate, the rotary encoder controls the rotating screw to stop rotating through an electrical signal to prevent the compaction hammer assembly from colliding with the compaction cylinder when it falls. The compaction position of the compaction hammer assembly can be automatically calibrated according to compaction cylinders of different sizes, so that the device can be adapted to compaction cylinders of different diameters, thereby reducing manual calibration, improving the automation of the device, and improving the efficiency of the soil compaction test.

[0022] 4. In the present invention, when the compacting hammer assembly reciprocates to compact the soil inside the compacting cylinder, the rotating motor drives the rotating disk to rotate, so that the compacting hammer assembly compacts different positions of the soil inside the compacting cylinder, thereby making the soil of each layer inside the compacting cylinder more evenly compacted, thereby improving the accuracy of the soil compaction test. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the compaction assembly structure of the present invention;

[0025] Figure 3 The present invention Figure 2 Schematic diagram of the structure at A in FIG.

[0026] Figure 4 It is a schematic diagram of the structure of the detection rod of the present invention;

[0027] Figure 5 The present invention Figure 4 The structural cross-section diagram at point B in FIG.

[0028] Figure 6 The present invention Figure 4 The structural cross-section diagram at point C in the figure;

[0029] Figure 7 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0030] Figure 8 It is a schematic diagram of the fixed base structure of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the compacting hammer assembly of the present invention;

[0032] Fig.10 It is a schematic diagram of the structure of the fixing assembly of the present invention.

[0033] In the figure: 1. compacting assembly; 2. compacting hammer assembly; 3. fixed base; 11. supporting frame; 12. driving cover; 13. control panel; 14. limiting frame; 15. detection rod; 16. clamping assembly; 17. driving motor; 18. driving sprocket; 19. driving chain; 110. pressing wheel; 111. driving sprocket; 112. pushing block; 151. detecting rod; 152. sliding block; 153. fixing frame; 154. ranging sensor transmitter; 155. movable block; 156. supporting spring; 157. cushion block; 158. rotary encoder; 159. rotating plate; 1510. driving wheel; 1511. movable cavity; 1512. pressing block; 1513. detection spring; 1514. spring press button; 161, electric lifting rod; 162, snap-on frame; 163, distance sensor receiver; 164, sliding plate; 165, snap-on spring; 166, electromagnet; 167, snap-on strip; 21, compacting hammer; 22, snap-on ball; 23, fixing assembly; 24, additional hammer; 25, placement slot; 26, connecting rod; 27, snap-on block; 231, movable slot; 232, embedded slot; 233, limit slot; 234, supporting connecting plate; 235, snap-on bolt; 236, sleeve spring; 237, fixing bolt; 31, supporting base; 32, moving motor; 33, rotating screw; 34, sliding seat; 35, rotating motor; 36, rotating disk; 37, mounting rod; 38, compacting cylinder; 39, mounting ring. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0035] Embodiment 1, as Figure 1 - Figure 7 As shown, a soil compaction test device for construction engineering inspection includes a compaction assembly 1, a compaction hammer assembly 2 and a fixed base 3. The bottom of the compaction assembly 1 is fixedly installed with the fixed base 3, and the compaction hammer assembly 2 is located above the fixed base 3;

[0036] like Figure 2 and Figure 3 As shown, the compacting assembly 1 includes a supporting frame 11, a detection rod 15 and a clamping assembly 16. A driving cover 12 is fixedly installed on the upper end of the supporting frame 11, and a control panel 13 is fixedly installed on the side of the driving cover 12. Limiting frames 14 are fixedly installed on both sides of the interior of the supporting frame 11. The detection rod 15 is movably sleeved on the outer surface of the limiting frame 14. The compacting hammer assembly 2 is movably sleeved on the outer surface of the detection rod 15, and the clamping assembly 16 is fixedly installed on the lower end of the interior of the driving cover 12.

[0037] By setting up the detection rod 15, before the compacting hammer assembly 2 compacts the soil inside the compacting cylinder 38, the thickness of the soil inside the compacting cylinder 38 is detected by the detection rod 15. The compacting hammer assembly 2 can automatically adjust the height of the compacting hammer assembly 2 according to the thickness and height of the soil by using the clamping assembly 16, so that the device can identify the thickness of the soil and automatically adjust it, thereby improving the uniformity of the device's compaction strength on the soil, thereby improving the accuracy of the soil compaction test.

[0038] like Figure 6 As shown, the detection rod 15 includes a detection rod 151, a rotary encoder 158 is fixedly installed inside the lower end of the detection rod 151, a rotating plate 159 is fixedly installed at the output end of the rotary encoder 158, the rotating plate 159 is rotatably installed at the bottom of the detection rod 151, a transmission wheel 1510 is fixedly sleeved on the outer surface of the rotating plate 159, a movable cavity 1511 is opened on the bottom surface of the rotating plate 159, a detection spring 1513 is fixedly installed inside the movable cavity 1511, a pressing block 1512 is fixedly installed at the bottom of the detection spring 1513, the pressing block 1512 is movably sleeved inside the movable cavity 1511, a spring button 1514 is fixedly installed on the top of the inner wall of the movable cavity 1511, and the pressing block 1512 is fixedly installed at the bottom of the spring button 1514.

[0039] Among them, by utilizing the action of the pressing block 1512 inside the rotating plate 159, when the detection rod 151 falls due to gravity and the rotating plate 159 falls into the compacting cylinder 38, the pressing block 1512 contacts the soil inside the compacting cylinder 38, and the detection spring 1513 is compressed, causing the pressing block 1512 to shrink into the inside of the active cavity 1511, and the pressing block 1512 presses onto the spring button 1514. At this time, the electric lifting rod 161 controls the lifting and lowering of the card frame 162, so that the distance between the ranging sensor receiver 163 and the ranging sensor transmitter 154 is the same as the initial distance, thereby keeping the height of the compacting hammer assembly 2 falling to the soil consistent each time, so as to ensure that the impact force is the same each time.

[0040] like Figure 2 - Figure 3 As shown, a driving motor 17 is fixedly installed on the left side of the upper end of the driving cover 12, a driving sprocket 18 is fixedly installed on the output end of the driving motor 17, a transmission chain 19 is meshingly installed on the outer surface of the driving sprocket 18, a driving sprocket 111 is rotatably installed on the upper end of the driving cover 12, the upper end of the driving chain 19 is meshingly installed on the outer surface of the driving sprocket 111, and pushing blocks 112 are fixedly installed on both ends of the driving chain 19.

[0041] Among them, a pressing wheel 110 is fixedly installed on the top of the inner wall of the driving cover 12, a sliding block 152 is fixedly installed on the top of the detection rod 151, and the two ends of the sliding block 152 are respectively movably sleeved on the outer surfaces of the limit frames 14 on both sides, a fixed frame 153 is fixedly installed on the top of the sliding block 152, and a movable block 155 is movably sleeved inside the fixed frame 153, and a cushion block 157 is fixedly installed on the bottom of the left side of the movable block 155, and the cushion block 157 is located above the pushing block 112. The right side of the top of the movable block 155 is an inclined surface, and support springs 156 are fixedly installed on both ends of the right side of the movable block 155, and the right side of the support spring 156 is fixedly installed on the inner wall of the right side of the fixed frame 153, and a ranging sensor transmitter 154 is fixedly installed on the right side of the sliding block 152, and the pressing wheel 110 is located above the right side of the movable block 155.

[0042] During this process, the transmission chain 19 is controlled to rotate by the driving motor 17 and the driving sprocket 18, and the pad 157 is pushed up by the pushing block 112. When the top of the movable block 155 contacts the bottom of the pressing wheel 110, the pressing wheel 110 presses to the right side of the top of the movable block 155. The supporting spring 156 is compressed by utilizing the inclined surface at the top of the movable block 155, and the movable block 155 moves to the right, and the pad 157 is separated from the top of the pushing block 112. At this time, the detection rod 15 cannot receive the supporting force and is therefore affected by gravity. The sliding block 152 slides along the limit frame 14 and extends from the inside of the driving cover 12. The rotating plate 159 falls into the inside of the compaction cylinder 38 and detects the soil thickness inside the compaction cylinder 38.

[0043] like Figure 7 As shown, the clamping assembly 16 includes two electric lifting rods 161, and the two electric lifting rods 161 are fixedly installed on both sides of the inner bottom surface of the driving cover 12, and a clamping frame 162 is fixedly installed on the top of the electric lifting rod 161. A distance sensor receiver 163 is fixedly installed on the right side of the inside of the clamping frame 162. The distance sensor receiver 163 is located below the distance sensor transmitter 154. Sliding grooves are provided on both sides of the clamping frame 162, and sliding plates 164 are slidably installed on both sides of the sliding groove. An electromagnet 166 is fixedly installed at the bottom of the side sliding plate 164, and the electromagnets 166 on both sides are magnetically connected to each other and electrically connected to the spring button 1514. A clamping spring 165 is fixedly installed on the opposite side of the sliding plates 164 on both sides, and the clamping spring 165 is located between the sliding plate 164 and the clamping frame 162. A clamping strip 167 is fixedly installed on the opposite side of the sliding plates 164 on both sides, and the upper and lower sides of the clamping strip 167 are both inclined surfaces. The sliding plates 164 on both sides are respectively located on both sides of the detection rod 151.

[0044] By setting up a distance sensor receiver 163 and a distance sensor transmitter 154, the height difference between the detection rod 15 and the clamping frame 162 when it descends is detected, so as to judge the soil thickness inside the compaction cylinder 38, and through the distance sensor receiver 163, the electric lifting rod 161 is controlled to rise through an electrical signal, so that the distance between the distance sensor receiver 163 and the distance sensor transmitter 154 of the detection rod 15 after it falls is always the same as the initial distance, and then the falling distance of the compaction hammer assembly 2 inside the clamping assembly 16 is always consistent, so that the compaction hammer assembly 2 can hit the soil with uniform force.

[0045] By utilizing the inclined surface of the clamping strip 167 and the clamping ball 22, when the electromagnets 166 on both sides generate magnetic attraction, the clamping strip 167 and the sliding plate 164 clamp the connection between the compacting base hammer 21 and the clamping ball 22. When the electromagnets 166 on both sides stop working and stop magnetic attraction, the compacting hammer assembly 2 is acted upon by gravity, the clamping ball 22 descends, and pushes the clamping strips 167 on both sides, so that the sliding plates 164 at both ends move to both sides, causing the compacting hammer assembly 2 to fall and compact the soil. When the detection rod 151 is on the ground, the compacting hammer assembly 2 is moved downward, and the soil is compacted. When the rotating plate 159 pushes the compacting hammer assembly 2 to rise, the latching ball 22 passes the bottom of the latching strip 167 and pushes the inclined surface of the latching strip 167. The rising force of the latching ball 22 overcomes the magnetic attraction of the electromagnet 166, and the sliding plate 164 moves to both sides. When the latching ball 22 passes through the latching strip 167, the reaction force of the latching spring 165 and the magnetic attraction of the electromagnet 166 are used to make the latching strips 167 at both ends latch the connection between the compacting base hammer 21 and the latching ball 22, so as to fix the compacting hammer assembly 2.

[0046] Embodiment 2, as Figure 1 , Figure 4 , Fig. 9 - Fig.10 As shown, a soil compaction test device for construction engineering inspection, the compaction hammer assembly 2 includes a compaction base hammer 21 and a plurality of additional hammers 24, a clamping ball 22 is fixedly installed on the top of the compaction base hammer 21, the compaction base hammer 21 and the clamping ball 22 are movably sleeved on the outer surface of the detection rod 151, the additional hammer 24 is detachably installed on the bottom of the compaction base hammer 21, the bottom of the compaction base hammer 21 and the additional hammer 24 are both provided with a fixing assembly 23, connecting rods 26 are fixedly installed on both sides of the top of the additional hammer 24, a placement groove 25 is provided on one side of the additional hammer 24, the placement groove 25 is sleeved on the outer surface of the detection rod 151, a clamping block 27 is fixedly installed on the top of the additional hammer 24 away from the placement groove 25, and a plurality of additional hammers 24 are detachably installed on the bottom of the compaction base hammer 21 through the fixing assembly 23.

[0047] like Fig.10As shown, the fixing assembly 23 includes a movable groove 231, and a supporting connecting plate 234 is movably sleeved inside the movable groove 231. Both ends of the supporting connecting plate 234 are fixedly installed with a clamping bolt 235. The outer surface of one end of the clamping bolt 235 is movably sleeved with a sleeve spring 236. The sleeve spring 236 is located between the supporting connecting plate 234 and the movable groove 231. Limiting grooves 233 are provided on both sides of the bottom of the compacting base hammer 21 and the additional hammer 24, and an embedded groove 232 is provided on one side of the bottom of the compacting base hammer 21 and the additional hammer 24.

[0048] By utilizing multiple additional hammers 24, the quality of the compaction base hammer 21 can be improved by installing one or more additional hammers 24 at the bottom of the compaction base hammer 21, depending on the type of soil and the test scenario, thereby increasing the striking strength of the compaction hammer assembly 2, making the device adaptable to different types and scenarios and improving the flexibility of the device.

[0049] Among them, a fixing bolt 237 is threadedly installed on one side of the compaction base hammer 21 and the additional hammer 24, and the fixing bolt 237 is movably installed on the left side of the supporting connecting plate 234. The connecting rod 26 is plugged into the inside of the limiting groove 233, and the clamping block 27 is plugged into the inside of the embedded groove 232. The fixing bolt 237 is threadedly installed in the inside of the clamping block 27, and the clamping bolt 235 is plugged into the inside of the connecting rod 26.

[0050] During installation, the connecting rod 26 is inserted into the interior of the limiting groove 233, the clamping block 27 is inserted into the interior of the embedded groove 232, and fixed by the fixing bolt 237, so that the fixing bolt 237 passes through the clamping block 27, and the fixing bolt 237 rotates and pushes the supporting connecting plate 234, so that the clamping bolts 235 at both ends of the supporting connecting plate 234 are clamped into the interior of the connecting rod 26, and fixed to the bottom of the compacting base hammer 21 through one or more additional hammers 24, thereby increasing the weight of the compacting hammer assembly 2 to improve the impact strength of the compacting hammer assembly 2 on the soil.

[0051] Embodiment three, as Figure 1 - Figure 6 , Figure 8As shown, a soil compaction test device for construction engineering inspection, the fixed base 3 includes a supporting base 31, a rotating screw 33 and a compaction cylinder 38, the supporting base 31 is fixedly installed at the bottom of the supporting frame 11, a moving motor 32 is fixedly installed on one side of the bottom of the supporting base 31, the output end of the moving motor 32 is fixedly installed with the rotating screw 33, the rotating screw 33 is rotatably installed at the bottom end inside the supporting base 31, a sliding seat 34 is slidably installed inside the supporting base 31, the bottom thread of the sliding seat 34 is installed on the outer surface of the rotating screw 33, a rotating motor 35 is fixedly installed inside the sliding seat 34, a rotating disk 36 is fixedly installed on the output end of the rotating motor 35, the rotating disk 36 is rotatably installed on the top of the sliding seat 34, and mounting rods 37 are fixedly installed on both sides of the top of the rotating disk 36.

[0052] The compacting cylinder 38 is detachably mounted on the top of the rotating disk 36 , and a mounting ring 39 is placed on the top of the compacting cylinder 38 . Both sides of the mounting ring 39 are fixed to the top of the mounting rod 37 by bolts.

[0053] By setting a rotary encoder 158, when the detection rod 151 descends to the inside of the compaction cylinder 38, the rotating plate 159 is in a suspended state inside the compaction cylinder 38. At this time, the rotating motor 35 controls the rotating disk 36 and the compaction cylinder 38 on the top of the rotating disk 36 to rotate, and the moving motor 32 controls the sliding seat 34 and the compaction cylinder 38 on the top of the rotating disk 36 to move by rotating the screw 33. When the inner wall of the compaction cylinder 38 contacts the transmission wheel 1510, it will drive the rotating plate 159 to rotate at the bottom of the detection rod 151, and the rotary encoder 158 senses the rotation. When the movable plate 159 rotates, the rotary encoder 158 controls the movable motor 32 to stop the rotating screw 33 through an electrical signal, and controls the rotating screw 33 to rotate in the opposite direction again, so that there is a certain gap between the transmission wheel 1510 and the inner wall of the compaction cylinder 38, so as to avoid the compaction hammer assembly 2 from colliding with the compaction cylinder 38 when falling. The compaction position of the compaction hammer assembly 2 can be automatically calibrated according to the compaction cylinders 38 of different sizes, so that the device can be adapted to compaction cylinders 38 of different diameters, thereby reducing manual calibration, improving the automation of the device, and improving the efficiency of the soil compaction test.

[0054] It should be noted that the present invention is a soil compaction test device for construction engineering inspection. When it is used, when the compaction position needs to be calibrated, the driving motor 17 controls the transmission chain 19 to rotate clockwise, so that the pushing block 112 on the transmission chain 19 drives the cushion block 157 to descend. When the detection rod 151 descends to the inside of the compaction cylinder 38, the rotating plate 159 is in a suspended state inside the compaction cylinder 38. At this time, the rotating motor 35 controls the rotating disk 36 and the compaction cylinder 38 on the top of the rotating disk 36 to rotate, and the moving motor 32 controls the sliding seat 34 and the rotating screw 33 to rotate. The compacting cylinder 38 on the top of the disk 36 moves. When the compacting cylinder 38 contacts the transmission wheel 1510, it drives the rotating plate 159 to rotate at the bottom of the detection rod 151. When the rotary encoder 158 senses the rotation of the rotating plate 159, the mobile motor 32 controls the rotating screw 33 to stop rotating, and controls the rotating screw 33 to rotate in the opposite direction again, so that there is a certain gap between the compacting hammer assembly 2 and the inner wall of the compacting cylinder 38. Subsequently, the rotating plate 159 descends to the bottom of the compacting cylinder 38, and sets the distance between the distance sensor transmitter 154 and the distance sensor receiver 163 as the initial distance, completing the calibration;

[0055] Subsequently, the driving motor 17 controls the transmission chain 19 to rotate counterclockwise, so that the detection rod 15 is retracted into the interior of the driving cover 12, and after adding moisture to the soil to be detected, it is added to the interior of the compaction cylinder 38. At this time, the driving motor 17 controls the driving sprocket 18 to rotate, and the transmission chain 19 continues to rotate counterclockwise. The pushing block 112 on the side of the transmission chain 19 pushes the cushion block 157, so that the cushion block 157 drives the sliding block 152 to rise to the bottom of the pressing wheel 110. At this time, the pressing wheel 110 presses to the top of the right side of the movable block 155, and the inclined surface on the right side of the top of the movable block 155 is used to move the movable block 155 to the right. At this time, the supporting spring 156 is compressed, and the cushion block 157 moves out of the top of the pushing block 112, so that the detection rod 15 falls under the influence of gravity, and the rotating plate 159 falls into the interior of the compaction cylinder 38. The pressing block 1512 contacts the soil inside the compacting cylinder 38, and the detection spring 1513 is compressed, so that the pressing block 1512 shrinks into the inside of the active cavity 1511, and the pressing block 1512 presses on the spring button 1514. At this time, the distance between the distance measuring sensor transmitter 154 and the distance measuring sensor receiver 163 and the initial distance is the thickness of the soil. The distance measuring sensor receiver 163 detects the soil thickness and controls the electric lifting rod 161 to rise through an electrical signal, so that the clamping frame 162 drives the compacting hammer assembly 2 to rise to the same distance as the initial distance, and controls the electromagnet 166 to stop working, and the electromagnets 166 on both sides stop magnetic attraction. The compacting hammer assembly 2 is affected by gravity and falls along the detection rod 151, and knocks onto the rotating plate 159, compacting the soil at the bottom of the rotating plate 159;

[0056] After the compaction is completed, as the driving motor 17 drives the driving sprocket 18 to rotate, through the transmission of the transmission chain 19, the pushing block 112 on the transmission chain 19 moves again to the bottom of the cushion block 157, pushing the detection rod 151 to rise. At this time, the rotating plate 159 rises and drives the compacting hammer assembly 2 on the top of the rotating plate 159 to rise, so that the compacting base hammer 21 rises, and the clamping ball 22 passes between the clamping strips 167 on both sides, so that the clamping springs 165 on both sides are compressed, and the clamping ball 22 passes between the clamping strips 167, and through the mutual magnetic attraction of the electromagnet 166 and the reaction force of the clamping spring 165, the clamping strips 167 on both sides clamp the compacting hammer assembly 2, and the detection rod 15 continues to rise and prepares for the next compaction.

[0057] When the compacting hammer assembly 2 reciprocates to compact the soil inside the compacting cylinder 38, the rotary motor 35 drives the rotating disk 36 to rotate, so that the compacting hammer assembly 2 compacts the soil at different positions inside the compacting cylinder 38, so that each layer of soil inside the compacting cylinder 38 is compacted more evenly;

[0058] When the striking force needs to be increased, the two connecting rods 26 on the top of the additional hammer 24 are inserted into the inside of the limit groove 233 at the bottom of the compacting base hammer 21, and the clamping block 27 is inserted into the inside of the embedded groove 232, and is locked by passing the fixing bolt 237 through the clamping block 27. By rotating and tightening the fixing bolt 237, the fixing bolt 237 is squeezed to the side of the supporting connecting plate 234, so that the sleeve spring 236 is compressed, the supporting connecting plate 234 moves, and the clamping bolts 235 at both ends are inserted into the inside of the connecting rod 26, and an additional hammer 24 is installed at the bottom of the compacting base hammer 21. Similarly, multiple additional hammers 24 are fixed to increase the striking force. In addition, multiple additional hammers 24 are removed from the bottom of the compacting base hammer 21 to reduce the striking force.

[0059] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A soil compaction test device for construction engineering inspection, comprising a compaction component (1), characterized in that: A compacting hammer assembly (2) is fixedly mounted on the upper end of the compacting assembly (1), a fixed base (3) is fixedly mounted on the bottom of the compacting assembly (1), and the compacting hammer assembly (2) is located above the fixed base (3); The compacting assembly (1) comprises a support frame (11), a driving cover (12) is fixedly mounted on the upper end of the support frame (11), a control panel (13) is fixedly mounted on the side of the driving cover (12), limiting frames (14) are fixedly mounted on both sides of the interior of the support frame (11), a detection rod (15) is movably sleeved on the outer surface of the limiting frame (14), the compacting hammer assembly (2) is movably sleeved on the outer surface of the detection rod (15), and a clamping assembly (16) is fixedly mounted on the lower end of the interior of the driving cover (12); The detection rod (15) comprises a detection rod (151), a rotary encoder (158) is fixedly installed inside the lower end of the detection rod (151), a rotating plate (159) is fixedly installed on the output end of the rotary encoder (158), the rotating plate (159) is rotatably installed at the bottom of the detection rod (151), a transmission wheel (1510) is fixedly sleeved on the outer surface of the rotating plate (159), a movable cavity (1511) is opened on the bottom surface of the rotating plate (159), a detection spring (1513) is fixedly installed inside the movable cavity (1511), a pressing block (1512) is fixedly installed at the bottom of the detection spring (1513), the pressing block (1512) is movably sleeved inside the movable cavity (1511), a spring button (1514) is fixedly installed on the top of the inner wall of the movable cavity (1511), and the pressing block (1512) is fixedly installed at the bottom of the spring button (1514).

2. A soil compaction test device for construction engineering detection according to claim 1, characterized in that: A driving motor (17) is fixedly mounted on the left side of the upper end of the driving cover (12); a driving sprocket (18) is fixedly mounted on the output end of the driving motor (17); a transmission chain (19) is meshedly mounted on the outer surface of the driving sprocket (18); a driving sprocket (111) is rotatably mounted on the upper end of the driving cover (12); an upper end of the driving chain (19) is meshedly mounted on the outer surface of the driving sprocket (111); and push blocks (112) are fixedly mounted on both ends of the driving chain (19).

3. A soil compaction test device for construction engineering detection according to claim 2, characterized in that: A pressing wheel (110) is fixedly mounted on the top of the inner wall of the driving cover (12); a sliding block (152) is fixedly mounted on the top of the detection rod (151); two ends of the sliding block (152) are movably sleeved on the outer surfaces of the limiting frames (14) on both sides; a fixing frame (153) is fixedly mounted on the top of the sliding block (152); a movable block (155) is movably sleeved inside the fixing frame (153); a cushion block (155) is fixedly mounted on the bottom of the left side of the movable block (155). 57), the cushion block (157) is located above the pushing block (112), the right side of the top of the movable block (155) is an inclined surface, both ends of the right side of the movable block (155) are fixedly installed with support springs (156), the right side of the support spring (156) is fixedly installed on the inner wall of the right side of the fixed frame (153), the right side of the sliding block (152) is fixedly installed with a distance measuring sensor transmitter (154), and the pressing wheel (110) is located above the right side of the movable block (155).

4. A soil compaction test device for construction engineering detection according to claim 3, characterized in that: The clamping assembly (16) comprises two electric lifting rods (161), the two electric lifting rods (161) are respectively fixedly mounted on both sides of the inner bottom surface of the driving cover (12), a clamping frame (162) is fixedly mounted on the top of the electric lifting rod (161), a distance sensor receiver (163) is fixedly mounted on the right side inside the clamping frame (162), and the distance sensor receiver (163) is located below the distance sensor transmitter (154), and sliding grooves are provided on both sides of the clamping frame (162), and sliding plates (164) are slidably mounted on both sides of the sliding grooves, and the two sides of ... The bottom of the sliding plate (164) is fixedly installed with an electromagnet (166), the electromagnets (166) on both sides are magnetically connected to each other and electrically connected to the spring button (1514), the opposite sides of the sliding plates (164) on both sides are fixedly installed with a clamping spring (165), the clamping spring (165) is located between the sliding plate (164) and the clamping frame (162), the opposite sides of the sliding plates (164) on both sides are fixedly installed with a clamping strip (167), the upper and lower sides of the clamping strip (167) are both inclined surfaces, and the sliding plates (164) on both sides are respectively located on both sides of the detection rod (151).

5. A soil compaction test device for construction engineering detection according to claim 1, characterized in that: The compacting hammer assembly (2) comprises a compacting base hammer (21), a clamping ball (22) is fixedly installed on the top of the compacting base hammer (21), the compacting base hammer (21) and the clamping ball (22) are movably sleeved on the outer surface of the detection rod (151), an additional hammer (24) is detachably installed on the bottom of the compacting base hammer (21), the bottoms of the compacting base hammer (21) and the additional hammer (24) are both provided with fixing assemblies (23), connecting rods (26) are fixedly installed on both sides of the top of the additional hammer (24), a placement groove (25) is provided on one side of the additional hammer (24), the placement groove (25) is sleeved on the outer surface of the detection rod (151), and a clamping block (27) is fixedly installed on the top of the additional hammer (24) away from the placement groove (25).

6. A soil compaction test device for construction engineering detection according to claim 5, characterized in that: The number of the additional hammers (24) is several, and the several additional hammers (24) are detachably mounted on the bottom of the compaction base hammer (21) through a fixing assembly (23).

7. A soil compaction test device for construction engineering detection according to claim 5, characterized in that: The fixing assembly (23) comprises a movable groove (231), the interior of the movable groove (231) is movably sleeved with a supporting connecting plate (234), both ends of the supporting connecting plate (234) are fixedly installed with a clamping bolt (235), the outer surface of one end of the clamping bolt (235) is movably sleeved with a sleeve spring (236), and the sleeve spring (236) is located between the supporting connecting plate (234) and the movable groove (231), both sides of the bottom of the compacting basic hammer (21) and the additional hammer (24) are provided with a limiting groove (233), and one side of the bottom of the compacting basic hammer (21) and the additional hammer (24) is provided with an embedded groove (232).

8. A soil compaction test device for construction engineering detection according to claim 7, characterized in that: A fixing bolt (237) is threadedly installed on one side of the compaction base hammer (21) and the additional hammer (24), and the fixing bolt (237) is movably installed on the left side of the supporting connecting plate (234). The connecting rod (26) is inserted into the inside of the limiting groove (233), and the clamping block (27) is inserted into the inside of the embedded groove (232). The fixing bolt (237) is threadedly installed in the inside of the clamping block (27), and the clamping bolt (235) is inserted into the inside of the connecting rod (26).

9. A soil compaction test device for construction engineering detection according to claim 1, characterized in that: The fixed base (3) comprises a supporting base (31), wherein the supporting base (31) is fixedly mounted on the bottom of the supporting frame (11), a moving motor (32) is fixedly mounted on one side of the bottom of the supporting base (31), a rotating screw (33) is fixedly mounted on the output end of the moving motor (32), the rotating screw (33) is rotatably mounted on the bottom end of the supporting base (31), a sliding seat (34) is slidably mounted inside the supporting base (31), the bottom of the sliding seat (34) is threadedly mounted on the outer surface of the rotating screw (33), a rotating motor (35) is fixedly mounted inside the sliding seat (34), a rotating disk (36) is fixedly mounted on the output end of the rotating motor (35), the top of the sliding seat (34) is rotatably mounted on the rotating disk (36), and mounting rods (37) are fixedly mounted on both sides of the top of the rotating disk (36).

10. A soil compaction test device for construction engineering detection according to claim 9, characterized in that: A compacting cylinder (38) is detachably mounted on the top of the rotating disk (36), a mounting ring (39) is placed on the top of the compacting cylinder (38), and both sides of the mounting ring (39) are fixedly mounted on the top of the mounting rod (37) by bolts.

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