Unpowered self-locking sediment thickness measuring device

Abstract

An unpowered self-locking sediment thickness measuring device comprises a combined thoracic tube, a guide frame, a telescopic occlusion mechanism and a gravity driving block, probe feet are arranged at the bottom of the combined thoracic tube, and the probe feet are arranged on the outer side of the combined thoracic tube in a sleeving mode, connected with the combined thoracic tube in a vertical sliding mode and arranged in the combined thoracic tube. The guide frame is arranged on the telescopic occlusion mechanism, is used for limiting the vertical position of the guide frame relative to the combined thoracic duct under the action of upward acting force and releasing the position limitation of the guide frame relative to the combined thoracic duct under the action of downward acting force, and is configured on the telescopic occlusion mechanism and used for providing and enhancing the downward acting force on the telescopic occlusion mechanism; when the thickness of the pile hole sediment is detected, the detection accuracy and the environment adaptability are effectively improved.

Description

Technical Field

[0001] This application relates to the technical field of building engineering, and in particular to a non-powered self-locking sediment thickness measuring device. Background Technology

[0002] In various construction projects, cast-in-place concrete piles are widely used and the construction technology is relatively mature. However, quality accidents caused by construction quality problems of cast-in-place piles are still frequent. There are many factors affecting the construction quality of cast-in-place piles, and the quality of the pile hole formation is a prerequisite for ensuring the quality of cast-in-place piles, which is particularly important. For dry drilling, there are relatively few invisible and uncontrollable problems in the process monitoring and final acceptance. However, for wet drilling with mud wall protection, there are more potential quality problems in the drilling process and final acceptance, such as hole wall collapse, pile hole deviation and tilting, diameter reduction, excessive sediment at the bottom of the hole, etc. Excessive sediment at the bottom of the hole, exceeding the design drawings or the upper limit allowed by the specifications, accounts for a large proportion of pile hole quality problems and directly affects the bearing capacity and integrity test results of the pile foundation, becoming one of the key factors affecting the quality of cast-in-place piles.

[0003] In existing technologies, the commonly used methods for detecting the thickness of sediment in pile holes in engineering projects mainly include the rope measuring method, the plumb bob measurement method, and the ultrasonic testing method. However, the existing rope measurement method and plumb bob method determine the thickness of sediment by measuring the difference between two depth measurements, which has low accuracy. The ultrasonic detection method is greatly affected by the environment, resulting in poor environmental adaptability. Summary of the Invention

[0004] This invention provides a non-powered, self-locking sediment thickness measuring device, which effectively improves the accuracy and environmental adaptability when detecting the thickness of sediment in pile holes.

[0005] To achieve the aforementioned objectives, this application adopts the following technical solution: A non-powered, self-locking sediment thickness measuring device, comprising: A modular chest tube with a probe at the bottom; The guide frame is fitted onto the outside of the combined chest tube and is vertically and slidably connected to the combined chest tube. The telescopic interlocking mechanism is configured inside the combined chest tube. It is subject to an upward force to limit the vertical position of the guide frame relative to the combined chest tube, and is subject to a downward force to release the position limitation of the guide frame relative to the combined chest tube. Gravity drive block, configured on the telescopic occlusal mechanism, is used to provide and enhance the downward force on the telescopic occlusal mechanism.

[0006] In some alternative embodiments, the telescopic occlusion mechanism comprises a linkage rod, an occlusion piece and a guide slot, the linkage rod is arranged inside the combined chest tube, the guide slot is horizontally arranged inside the combined chest tube, the occlusion piece is rotatably connected to the linkage rod through a first bearing, the linkage rod is rotatably connected to the linkage rod through a second bearing, the height of the first bearing is higher than the height of the second bearing, the side wall of the combined chest tube is provided with an occlusion piece working hole for the occlusion piece to pass through, and the guide frame is provided with a clamping plate matched with the occlusion piece.

[0007] In some alternative embodiments, a cap tube is connected to the top end of the combined chest tube.

[0008] In some alternative embodiments, the top of the cap tube is provided with a central hole, the top end of the linkage rod penetrates the cap tube through the central hole of the cap tube, and the inner and outer side walls of the top of the cap tube are respectively provided with travel limiting pins connected to the linkage rod.

[0009] In some alternative embodiments, the outer side wall of the top of the cap tube is further provided with a gravity driving block, and the gravity driving block is sleeved on the upper part of the linkage rod.

[0010] In some alternative embodiments, a plurality of linkage rod assemblies are distributed in an up-down manner along the length direction of the linkage rod, one linkage rod assembly comprises two linkage rods, the two ends of the linkage rod are provided with round holes, the inside of the round hole is sleeved with a first bearing and a second bearing, the same group of linkage rods are hinged, specifically, the linkage rod is further provided with two shaft pin holes, the two shaft pin holes are on the same center line, and the two shaft pin holes are arranged along the length direction of the linkage rod, and the linkage rod assembly and the linkage rod are connected through the cooperation of the bearing shaft pin and the shaft pin hole.

[0011] In some alternative embodiments, the upper end and the lower end of the single occlusion piece are respectively provided with shaft pin mounting holes, the bearing shaft pin penetrates the shaft pin mounting hole and is connected to the third bearing, and the third bearing is arranged inside the guide slot.

[0012] In some alternative embodiments, the guide frame comprises an upper structure ring, a middle structure ring and a lower structure ring, the upper structure ring, the middle structure ring and the lower structure ring are connected through a plurality of connecting rods, and the bottom of the connecting rod in the guide frame is connected with a touch disc, thereby forming a whole.

[0013] In some alternative embodiments, a group of guide wheels is installed on the middle structure ring and the lower structure ring, the group of guide wheels comprises a plurality of guide wheels, the front and back surfaces of the outer side wall of the composite probe rod device are respectively provided with guide rails, and the guide wheels are matched with the guide rails.

[0014] In some alternative embodiments, a thickness scale is arranged on the guide rail and the probe foot, and the thickness scale is counted from the tapered tip of the probe foot.

[0015] The application provides a non-powered self-locking type sediment thickness measuring device. 1. Through linkage between the gravity driving block and the telescopic occlusion mechanism, relative movement between the guide frame and the touch surface disc and the composite probe rod device, the sediment thickness data is finally obtained, the linkage action between the mechanisms in the non-powered self-locking type sediment thickness measuring device is coherent, and the detection result is real, accurate and objective.

[0016] 2. The touch surface disc can keep stable up-down movement by means of the guide frame through the guide rail arranged on the composite probe rod device, the device works more smoothly, and is not easy to be laterally overturned.

[0017] 3. The continuous tooth-shaped occlusion piece is arranged, the occlusion piece is tightly occluded with the guide frame when the occlusion piece is extended, so that the displacement movement position of the touch surface disc combined with the guide frame is locked, and the upper surface of the sediment can be confirmed.

[0018] 4. The linkage action between the mechanisms in the non-powered self-locking type sediment thickness measuring device does not need to be driven by electricity, is not affected by the electromagnetic electronic field environment, and is stable in performance. DETAILED DESCRIPTION

[0019] Other characteristics, objects and advantages of the application will become more apparent through reading the detailed description of the non-limiting embodiments made with reference to the following drawings: Figure 1 It is a whole structure diagram of the non-powered self-locking type sediment thickness measuring device; Figure 2 It is an internal structure diagram of the composite probe rod device in the non-powered self-locking type sediment thickness measuring device; Figure 3 It is a whole structure diagram of the composite probe rod device in the non-powered self-locking type sediment thickness measuring device; Figure 4 It is Figure 2 It is an enlarged view of the circle A shown in the figure; Figure 5 It is a partial structure diagram A of the inside of the composite probe rod device in the non-powered self-locking type sediment thickness measuring device; Figure 6 It is a partial structure diagram B of the inside of the composite probe rod device in the non-powered self-locking type sediment thickness measuring device; Figure 7 It is a partial structure diagram of the telescopic occlusion mechanism in the non-powered self-locking type sediment thickness measuring device; Figure 8 It is a partial structure diagram of the telescopic occlusion mechanism in the non-powered self-locking type sediment thickness measuring device from another perspective; Figure 9It is a structure diagram of a guide frame and a touch surface disc in a self-locking type sediment thickness measuring device without power.

[0020] Reference signs: 10, composite probe rod device; 11, combined chest tube; 11A, occlusal tab working hole; 111, linkage rod; 111A, shaft pin hole; 1111, bearing shaft pin; 112, stroke limiting pin hole; 113, safety catch; 12, cap tube; 12A, pressure relief hole; 12B, center hole; 121, stroke limiting pin; 13, probe foot; 13A, drainage and slurry discharge hole; 14, gravity driving block; 141, mounting hole; 15, universal lifting ring; 16, lifting rope; 17, connecting rod assembly; 171, connecting rod; 172, round hole; 173, first bearing; 174, second bearing; 175, third bearing; 18, telescopic occlusion mechanism; 181, occlusal tab; 183, guide groove; 19, guide rail; 191, thickness scale; 20, guide frame; 21, touch surface disc; 22, upper structure ring; 23, middle structure ring; 24, lower structure ring; 25, connecting rod; 26, clamping plate; 27, guide wheel. DETAILED DESCRIPTION

[0021] The specific embodiments of the present application will be described below in conjunction with the drawings and examples, and those skilled in the art can clearly and completely understand the technical solutions of the present application, the technical problems solved and the technical effects produced by the content recorded in the specification. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, only parts related to the present application are shown in the drawings for ease of description.

[0022] It should be noted that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to cooperate with the content recorded in the specification for those skilled in the art to understand and read, and do not have technical significance to limit the conditions that the present application can be implemented. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that the present application can produce, should fall within the scope of the technical content disclosed by the present application.

[0023] The cited words such as "first", "second", "the", etc. do not represent a quantity limitation, but can represent a single or plural number. The terms "include", "contain", "have" and any variants thereof involved in the present application are intended to cover non-exclusive inclusion; for example, a process, method, system, The products or devices are not limited to the listed steps or units, but can further include steps or units not listed, or can further include other steps or units inherent to the processes, methods, products or devices. The terms "connected", "connected", "coupled" and the like in the present application are not limited to physical or mechanical connections, but can also include direct or indirect electrical connections.

[0024] It should be further noted that the embodiments of the present application correspond to the longitudinal section corresponding to the front view direction section, the transverse section corresponding to the right view direction section, and the horizontal section corresponding to the upper view direction section.

[0025] In addition, the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Reference Figure 1 , Figure 1 is the overall structure diagram of a self-locking sediment thickness measuring device without power. As shown in Figure 1 , a self-locking sediment thickness measuring device without power includes a composite probe rod device 10, an external guide frame 20 is provided on the composite probe rod device 10, a clamping plate 26 cooperating with the occlusal plate 181 is provided on the top of the guide frame 20, a touch surface disc 21 is provided on the bottom of the guide frame 20, the guide frame 20 and the composite probe rod device 10 are relatively moved and positioned occlusal, and the touch surface disc 21 is moved under the driving of the guide frame 20.

[0027] Continue to refer to Figure 1 , refer to Figure 2 and Figure 3 , Figure 2 is the internal structure diagram of the composite probe rod device of a self-locking sediment thickness measuring device without power, Figure 3 is the overall structure diagram of the composite probe rod device of a self-locking sediment thickness measuring device without power. As shown in Figure 1 , Figure 2 and Figure 3As shown, the composite probe rod device 10 comprises a combined chest tube 11, an outer wall of the combined chest tube 11 is sleeved with a guide frame 20, and the guide frame 20 is in vertical sliding connection with the combined chest tube 11, a cap tube 12 is connected to a top end of the combined chest tube 11, and a probe foot 13 is arranged at a bottom end of the combined chest tube 11. Specifically, outer threads are arranged on opposite ends of the combined chest tube 11, inner threads are arranged on inner walls of connecting ends of the cap tube 12 and the probe foot 13, and the cap tube 12 and the probe foot 13 are connected to the combined chest tube 11 through mutual cooperation of the inner and outer threads. Further, pressure relief holes 12A are symmetrically arranged at middle positions of opposite side walls of a tube body of the cap tube 12. In addition, a center hole 12B is arranged at a top of the cap tube 12, and the center hole 12B is a circular hole with a diameter of 16 mm. It should be noted that a wall thickness of the cap tube 12 is 2.5 mm, an outer diameter is 102 mm, and a length is 80 mm. A wall thickness of the combined chest tube 11 is 2.5 mm, an outer diameter is 102 mm, and a length is 400 mm. In addition, the probe foot 13 has a total length of 240 mm, is composed of a steel tube with an outer diameter of 102 mm, a wall thickness of 2.5 mm, and a length of 150 mm, and a steel conical body with a diameter of 102 mm and a height of 90 mm, inner threads are arranged at two ends of the steel tube, two drainage and slurry discharge holes 13A with a height of 50 mm and a width of 20 mm are arranged at a lower end of the tube part and are symmetrically arranged, and it should be noted that the lower end of the tube part is close to one end of the conical body.

[0028] With reference back to Figure 3 With reference back to Figure 4 , Figure 4 is Figure 2 is an enlarged view of circle A shown. As Figure 3 and Figure 4As shown, the two opposite side walls of the tube body of the combined chest tube 11 are symmetrically provided with bite piece working holes 11A, the combined chest tube 11 is divided into two tube pieces along the preset direction, and the two tube pieces are combined to form a complete combined chest tube 11, thereby improving the convenience of installing the telescopic bite mechanism 18. Further, the shape of the bite piece working hole 11A is a strip-shaped hole, the length direction of the bite piece working hole 11A is arranged along the preset direction, and the combined chest tube 11 is divided into two tube pieces along the center line of the length direction of the strip-shaped hole. The inside of the combined chest tube 11 is provided with a linkage rod 111, the diameter of the linkage rod 111 is 14 mm, the length is 520 mm, the top end of the linkage rod 111 penetrates the cap tube 12 through the center hole 12B of the cap tube 12, and the inner side wall and the outer side wall of the top of the cap tube 12 are respectively provided with a stroke limiting pin 121 connected to the linkage rod 111. Specifically, the top end of the linkage rod 111 is provided with two stroke limiting pin holes 112, the stroke limiting pin 121 is connected to the linkage rod 111 through the stroke limiting pin hole 112, one of the stroke limiting pin holes 112 is 57 mm away from the top end of the linkage rod 111, the other stroke limiting pin hole 112 is 81.68 mm away from the top end of the linkage rod 111, the hole diameter of the stroke limiting pin hole 112 is 6 mm, the cross-sectional diameter of the stroke limiting pin 121 is 6 mm, and the length is 30 mm. In addition, the telescopic bite mechanism 18 is also provided with a gravity driving block 14 for providing and enhancing the downward force received by the telescopic bite mechanism 18. Further, the outer side wall of the top of the cap tube 12 is also provided with a gravity driving block 14, the gravity driving block 14 is sleeved on the upper part of the linkage rod 111, the gravity driving block 14 is in the shape of a cylinder, the weight is 1.5 kg, the cross-sectional diameter is 110 mm, the height of the cylinder is 20 mm, and the center of the gravity driving block 14 is provided with a mounting hole 141 with a diameter of 16 mm, and the linkage rod 111 is connected to the gravity driving block 14 through the mounting hole 141.

[0029] With reference to Figure 1 and Figure 2 , reference is also made to Figure 5 , Figure 6 and Figure 7 , Figure 5 is a partial structure diagram A of the inside of a composite probe rod device in a self-locking type sediment thickness measuring device without power, Figure 6 is a partial structure diagram B of the inside of a composite probe rod device in a self-locking type sediment thickness measuring device without power, Figure 7 is a partial structure diagram of a telescopic bite mechanism in a self-locking type sediment thickness measuring device without power. As Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the top end of the linkage rod 111 is also provided with a universal lifting ring 15, which is connected as a whole with the linkage rod 111. Specifically, the top end of the linkage rod 111 is provided with an external thread, and the inside of the universal lifting ring 15 is provided with an internal thread. The linkage rod 111 and the universal lifting ring 15 are connected through the mutual cooperation between the internal and external threads. In addition, the lifting rope 16 is buckled on the universal lifting ring 15. The lifting rope 16 is a nylon lifting rope 16 with a rope diameter of 4 mm. During the detection operation, the length of the lifting rope 16 is selected according to the actual use requirement, and the lifting rope 16 is buckled on the universal lifting ring 15. A plurality of linkage assembly groups 17 are installed on the linkage rod 111. The plurality of linkage assembly groups 17 are distributed in an up-down manner along the length direction of the linkage rod 111. One end of the linkage assembly group 17 is connected to the linkage rod 111. One linkage assembly group 17 includes two link rods 171. Circular holes 172 are formed at both ends of the link rod 171. First bearings 173 and second bearings 174 are sleeved in the circular holes 172. The same group of link rods 171 are hingedly connected. Specifically, the engagement piece 181 is rotatably connected to the link rod 171 through the first bearing 173. The link rod 171 is rotatably connected to the linkage rod 111 through the second bearing 174. The height of the first bearing 173 is higher than the height of the second bearing 174. Two shaft pin holes 111A are also provided on the linkage rod 111. The two shaft pin holes 111A are on the same center line and are arranged along the length direction of the linkage rod 111. The linkage assembly group 17 is connected with the linkage rod 111 through the cooperation of the bearing shaft pin 1111 and the shaft pin hole 111A. In addition, one of the shaft pin holes 111A is arranged at a distance of 242.68 mm from the top of the linkage rod 111, and the other is arranged at a distance of 482.68 mm from the top of the linkage rod 111. The hole diameter of the shaft pin hole 111A is 9 mm. The thickness of the link rod 171 is 5 mm, the material is steel plate, the length is 65 mm, the width is 35 mm, the diameter of the circular hole 172 is 24 mm, and the centers of the circular holes 172 at both ends of the link rod 171 are apart by 35 mm. The specification of the bearing 173 can be selected according to the actual situation, as long as it can realize the smooth rotation of the link rod 171.

[0030] With reference to Figure 5 , Figure 6 and Figure 7 , reference is also made to Figure 8 , Figure 8 is another view of the partial structure of the telescopic engagement mechanism in the self-locking type sediment thickness measuring device without power. As shown in Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the telescopic occlusion mechanism 18 is arranged inside the combined chest tube 11, which is limited in the vertical position of the guide frame 20 relative to the combined chest tube 11 under the upward force, and is released from the position limit of the guide frame 20 relative to the combined chest tube 11 under the downward force. The other end of the connecting rod assembly 17 is connected with the telescopic occlusion mechanism 18, which includes a linkage rod 111, an occlusion piece 181 and a guide groove 183. The telescopic occlusion mechanism 18 has a set of symmetrical occlusion pieces 181, which pass through the opposite two side walls of the combined chest tube 11 through the occlusion piece working hole 11A. The upper end and the lower end of each single occlusion piece 181 are installed with a third bearing 175 through a bearing shaft pin 1111 on the two side walls. The upper end and the lower end of the single occlusion piece 181 are respectively provided with a shaft pin mounting hole with a diameter of 9mm (not shown in the figure), and the bearing shaft pin 1111 penetrates the shaft pin mounting hole and is connected with the third bearing 175. It should be noted that the bearing shaft pin 1111 of the occlusion piece 181 can be shared with the bearing shaft pin 1111 of the connecting rod assembly 17, as long as it does not interfere with the telescopic movement of the occlusion piece 181. In addition, the shaft pin mounting hole is respectively arranged at 50mm and 290mm along the vertical direction of the single occlusion piece 181, and the distance from the tooth tip is 21mm. In addition, the diameter of the bearing shaft pin 1111 is 9mm, and the length is selected according to the actual installation requirement. The bearing 173 adopts a 609ZZ deep groove ball bearing 173 with sealing rings on both sides to prevent oil, with an outer diameter of 24mm, an inner diameter of 9mm and a width of 7mm. The third bearing 175 is arranged inside the guide groove 183, which is fixed inside the combined chest tube 11 and arranged horizontally. The guide groove 183 is fixed inside the combined chest tube 11 by bolts. In addition, the number of occlusion pieces 181 is two, the length of single occlusion piece 181 is 340mm, the width is 31mm, and the thickness is 5mm. The single side edge of the occlusion piece 181 is toothed groove, with a tooth thickness of 1mm, a tooth length of 3mm, a tooth end of knife edge, and a distance between adjacent teeth of 1mm. In addition, in order to facilitate the installation of the telescopic occlusion mechanism 18, the center of the two shaft pin holes 111A on the linkage rod 111 is taken as the center to set the interval segment of 30mm upward and 30mm downward as a cuboid rod. The cuboid rod is made of cylindrical rod by forging and pressing process, with a length of 60mm, a width of 25mm and a thickness of 6mm. The guide groove 183 is symmetrically installed in the two half tube pieces of the combined chest tube 11. The shape of the guide groove 183 is C-shaped groove, and the length is matched with the inner diameter of the tube body of the combined chest tube 11. The length of the guide groove 183 is matched with the inner diameter of the combined chest tube 11, and can be installed in the combined chest tube 11. The net height and net width inside the guide groove 183 are matched with the bearings installed by the bearing shaft pin 1111 on the two side walls of the upper end and the lower end of each single occlusion piece 181.The front and back of the outer side wall of the composite probe rod device 10 are respectively provided with guide rails 19, and the guide rails 19 on the front are symmetrically arranged with the guide rails 19 on the back. The guide rails 19 are distributed on the combined chest tube 11 and the probe foot 13. The cross-sectional shape of the guide rail 19 is isosceles triangle, and the guide rail 19 is fixed on the outer side wall of the composite probe rod device 10 by welding. The guide rail 19 and the probe foot 13 are provided with a thickness scale 191. The thickness scale 191 is from the tapered tip of the probe foot 13, and the scale value is accurate to millimeter. The outer side wall of the lower end of the combined chest tube 11 is symmetrically provided with a group of safety catches 113. The group of safety catches 113 includes a plurality of safety catches 113, which are symmetrically distributed to prevent the guide frame 20 and the touch disc 21 from falling accidentally. Specifically, the safety catch 113 is welded at the position 65mm from the lower end of the combined chest tube 11. It should be noted that the diameter of the safety catch 113 is 10mm, and the length is 25mm.

[0031] With reference to Figure 1 , Figure 2 and Figure 5 , reference is also made to Figure 9 , Figure 9 is a structure diagram of a guide frame and a touch disc in a non-powered self-locking type sediment thickness measuring device. As Figure 1 , Figure 2 , Figure 5 and Figure 9As shown, the guide frame 20 comprises an upper structure ring 22, a middle structure ring 23 and a lower structure ring 24, which are connected into a whole through a plurality of connecting rods 25, and are uniformly arranged among the connecting rods 25. The upper structure ring 22 is connected with a clamping plate 26 on the side wall of the occlusal plate 181, so as to realize the cooperation of the occlusal plate 181 and the clamping plate 26. In the working process, the occlusion is smooth and stable. Specifically, the clamping plate 26 is an arc plate with a thickness of 0.8 mm. The end of the arc plate which is occluded with the occlusal plate 181 is processed into a blade shape. The diameter of the upper structure ring 22 is 120 mm, and the diameters of the middle structure ring 23 and the lower structure ring 24 are 200 mm. The upper structure ring 22, the middle structure ring 23 and the lower structure ring 24 are all processed from a round steel with a diameter of 4 mm. The distance between the adjacent structure rings is 100 mm, and the diameter of the connecting rod 25 is 4 mm. A set of guide wheels 27 is installed on the middle structure ring 23 and the lower structure ring 24. The set of guide wheels 27 comprises a plurality of guide wheels 27 which are uniformly distributed. The guide wheels 27 on the middle structure ring 23 and the lower structure ring 24 are on the same vertical line. The guide wheels 27 are matched with the guide rail 19, so as to realize the need. It is to be noted that the guide wheel 27 has a “V”-shaped groove with a depth of 8-10 mm. The material of the guide wheel 27 is nylon or polyurethane. The diameter of the guide wheel 27 is 40-60 mm, and the guide wheel 27 is provided with a sealing ring bearing. The bottom of the connecting rod 25 in the guide frame 20 is connected with a touch disc 21, so as to realize that the guide frame 20 and the touch disc 21 form a whole. It is to be noted that the thickness of the touch disc 21 is 1 mm, and the material is a steel plate. The shape of the touch disc 21 is a circular ring, wherein the outer ring radius R is 100 mm, and the inner ring radius r is 80 mm. The distance between the touch disc 21 and the lower structure ring is 100 mm. Here, the gravity driving block 14 is arranged on the upper part of the composite probe rod device 10. The telescopic occlusion mechanism 18 is arranged in the middle segment of the combined chest tube 11 of the composite probe rod device 10. The guide frame 20 and the touch disc 21 are arranged on the periphery of the middle segment of the composite probe rod. Two symmetrical vertical guide rails 19 are arranged on the outer side of the rod body of the composite probe rod device 10. A thickness scale 191 is arranged on the guide rail 19. The guide rail 19 is matched with the guide wheel 27.

[0032] Herein, a kind of unpowered self-locking sediment thickness measuring device, the outer sleeve of composite probe rod device is equipped with guide frame, the bottom of guide frame is equipped with touch surface disc, guide frame and composite probe rod device are relatively moved and positioned and occluded, touch surface disc is moved under the driving of guide frame, when the thickness of pile hole sediment is detected, the accuracy of detection and the environmental adaptability of detection are effectively improved;In addition, the lifting rope used in the measuring device of the application mainly plays the role of lifting device, the sediment detection result is irrelevant to the length of lifting rope, and is not affected by the tensile deformation and water absorption deformation of lifting rope, and the detection device in the application does not need to be calculated many times during detection process, after detection operation is completed, sediment thickness can be directly reflected on detection device, and the error of detection result is not greater than 1mm;In addition, the detection device of the application is not affected by external environmental medium, effectively improves the stability and accuracy of poor detection result.

[0033] In order to facilitate understanding, the working principle of the application is described as follows: before detection operation, select the lifting rope 16 with appropriate length according to the design depth of pile hole, so that the lifting rope 16 is firmly connected with the universal lifting ring 15 at the upper end of the device.

[0034] The device is erected on the ground, the guide frame 20 is lifted to the position of 2-3 teeth away from the uppermost end of the occlusion piece 181, the lifting rope 16 is lifted, and the linkage rod 111 is lifted upwards within the range of stroke limit along with the tightening of the lifting rope 16. While the linkage rod 111 is lifted upwards, the one end of the connecting rod 171 on the telescopic occlusion mechanism 18 is moved upwards, and the other end is moved horizontally outward, at the same time, the shaft pin drives the bearing 173 in the two side guide grooves 183 to roll outward, the bearing 173 rolls outward to drive the occlusion piece 181 to stretch out, and the tooth groove on the occlusion piece 181 is occluded with the arc plate on the upper end structure ring of the guide frame 20 at the same time;It should be noted that the hinge position of the mutually hinged connecting rod is concave, and the initial position of the connecting rod assembly is in this state.

[0035] After the above preparation steps are completed, the device can be lifted to the position of the pile hole to be measured, slowly lowered, and when the device reaches the bottom of the pile hole, the device is lifted about 300 mm, and the device is quickly lowered, using the weight of the device and gravity to make the probe 13 quickly pass through the hole bottom sediment layer and reach the bearing layer. When the probe 13 reaches the bearing layer and stops advancing downward, the gravity driving block 14 installed on the outer end of the cap tube 12 top linkage rod 111 continues to move downward within the range of travel limit due to inertia. The downward movement of the gravity driving block 14 drives the linkage rod 111 to move downward, and the downward movement of the linkage rod 111 drives the one end of the connecting rod 171 on the telescopic clamping mechanism 18 to move downward, and the other end to move horizontally inward. When the one end of the connecting rod 171 moves horizontally inward, the bearings 173 in the two side guide grooves 183 are driven to roll inward through the shaft pin, and the clamping pieces 181 are driven to retract inward through the shaft pin when the bearings 173 roll inward. When the clamping pieces 181 retract inward, the teeth grooves on the clamping pieces 181 are separated from the arc plates on the upper end structure ring of the guide frame 20, and at the same time, the guide frame 20 drives the touch disc 21 to quickly fall to the pile hole bottom sediment surface under the guidance of the guide wheel 27 and the guide rail 19.

[0036] At this time, the lifting rope 16 is tightened, and the linkage rod 111 is lifted upward within the range of travel limit. When the linkage rod 111 is lifted upward, the one end of the connecting rod 171 on the telescopic clamping mechanism 18 is moved upward, and the other end is moved horizontally outward. When the one end of the connecting rod 171 moves horizontally outward, the bearings 173 in the two side guide grooves 183 are driven to roll outward through the shaft pin, and the clamping pieces 181 are driven to extend outward through the shaft pin when the bearings 173 roll outward. When the clamping pieces 181 extend outward, the teeth grooves on the clamping pieces 181 are engaged with the arc plates on the upper end structure ring of the guide frame 20. Lift the device away from the pile hole, and observe the length scale value on the device corresponding to the bottom edge of the touch disc 21, which is the determined sediment thickness this time, and the reading is accurate to millimeters.

[0037] While the application has been described and illustrated with reference to particular embodiments thereof, those skilled in the art will understand that various alterations, modifications and substitutions can be made therein without departing from the true spirit and scope of the application as defined by the appended claims. The figures can not be drawn to scale. There can be distinctions between the technical reproduction and actual implementation of the application in the present disclosure due to variables in the manufacturing process, etc. There can be other embodiments of the application that are not specifically illustrated. The specification and drawings are, accordingly, to be regarded simply as illustrative and not restrictive. Modifications can be made to adapt a particular situation, material, composition of matter, method, or process to the objective, spirit and scope of the application. All such modifications are intended to be within the scope of the claims appended hereto. Although methods disclosed herein have been described with reference to particular operations performed in a particular order, it will be understood that these operations can be combined, sub-divided, or re-ordered to create equivalent methods without departing from the teachings of the present application. Accordingly, unless specifically indicated herein, the order and grouping of operations are not a limitation of the application.

Claims

1. A non-powered, self-locking sediment thickness measuring device, characterized in that, include A combined chest tube (11) is provided with a probe (13) at the bottom end; The guide frame (20) is sleeved on the outside of the combined chest tube (11) and vertically slidably connected to the combined chest tube (11); The telescopic engagement mechanism (18) is disposed inside the combined chest tube (11), and is subject to an upward force to limit the vertical position of the guide frame (20) relative to the combined chest tube (11), and is subject to a downward force to release the position limitation of the guide frame (20) relative to the combined chest tube (11). A gravity drive block (14) is disposed on the telescopic engagement mechanism (18) to provide and enhance the downward force on the telescopic engagement mechanism (18).

2. The non-powered self-locking sediment thickness measuring device according to claim 1, characterized in that, The telescopic biting mechanism (18) includes a linkage rod (111), a biting piece (181), and a guide groove (183). The linkage rod (111) is located inside the combined chest tube (11), and the guide groove (183) is horizontally located inside the combined chest tube (11). The biting piece (181) is rotatably connected to the connecting rod (171) through the first bearing (173), and the connecting rod (171) is rotatably connected to the linkage rod (111) through the second bearing (174). The height of the first bearing (173) is higher than the height of the second bearing (174). The side wall of the combined chest tube (11) is provided with a biting piece working hole (11A) for the biting piece (181) to pass through. The guide frame (20) is provided with a clamping plate (26) that cooperates with the biting piece (181).

3. The non-powered self-locking sediment thickness measuring device according to claim 1, characterized in that, A cap tube (12) is connected to the top of the combined chest tube (11).

4. The non-powered self-locking sediment thickness measuring device according to claim 3, characterized in that, The top of the cap tube (12) is provided with a central hole (12B). The top end of the linkage rod (111) passes through the central hole (12B) of the cap tube (12) and is provided with a travel limit pin (121) on the inner and outer side walls of the top of the cap tube (12). The travel limit pin (121) is connected to the linkage rod (111).

5. The non-powered self-locking sediment thickness measuring device according to claim 4, characterized in that, A gravity drive block (14) is also provided on the outer side wall of the top of the cap tube (12), and the gravity drive block (14) is sleeved on the upper part of the linkage rod (111).

6. The non-powered self-locking sediment thickness measuring device according to claim 5, characterized in that, Multiple sets of linkage assemblies (17) are arranged vertically along the length of the linkage rod (111). Each set of linkage assemblies (17) includes two linkages (171). Both ends of the linkages (171) are provided with round holes (172). A first bearing (173) and a second bearing (174) are fitted inside the round holes (172). The linkages (171) in the same set are hinged together. Specifically, the linkage rod (111) is also provided with two shaft pin holes (111A). The two shaft pin holes (111A) are located on the same center line and are arranged along the length of the linkage rod (111). The linkage assembly (17) and the linkage rod (111) are connected by the mutual cooperation of the bearing pin (1111) and the shaft pin hole (111A).

7. The non-powered self-locking sediment thickness measuring device according to claim 6, characterized in that, The upper and lower ends of the single engagement piece (181) are respectively provided with shaft pin mounting holes. The bearing shaft pin passes through the shaft pin mounting hole and is connected to the third bearing (175). The third bearing (175) is placed inside the guide groove (183).

8. The non-powered self-locking sediment thickness measuring device according to claim 7, characterized in that, The guide frame (20) includes an upper structural ring (22), a middle structural ring (23) and a lower structural ring (24). The upper structural ring (22), the middle structural ring (23) and the lower structural ring (24) are connected by multiple connecting rods (25), and the bottom of the connecting rods (25) in the guide frame (20) is connected to a contact plate (21), thus forming a whole.

9. The non-powered self-locking sediment thickness measuring device according to claim 8, characterized in that, A set of guide wheels (27) is installed on the middle structural ring (23) and the lower structural ring (24). A set of guide wheels (27) includes multiple guide wheels (27). The front and back sides of the outer side wall of the composite probe device (10) are respectively provided with guide rails (19), and the guide wheels (27) cooperate with the guide rails (19).

10. The non-powered self-locking sediment thickness measuring device according to claim 9, characterized in that, A thickness scale (191) is provided on the guide rail (19) and the probe foot (13), with the thickness scale (191) starting from the tip of the cone of the probe foot (13).

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