Impact sampling penetration experiment device capable of adapting to different working surfaces

Abstract

The utility model provides an impact sampling penetration experiment device capable of adapting to different working surfaces, which relates to the technical field of drilling sampling equipment, and comprises a bracket, the bracket comprises a main supporting rod, a pulley assembly and two inclined supporting rods, the main supporting rod is vertically arranged, the pulley assembly is arranged at the upper end of the main supporting rod, and the two inclined supporting rods are arranged on the bracket; the two inclined supporting rods are arranged on one side of the main supporting rod, the upper end of each inclined supporting rod is rotatably connected with the middle of the main supporting rod, and a rotatable movable supporting plate is arranged at the lower end of each inclined supporting rod; and an impact assembly. The impact hammer has the advantages that the two inclined supporting rods can be rotatably matched with an uneven working face and are matched with the main supporting rod, a stable supporting structure is formed by means of the characteristic of stability of a triangle, it is guaranteed that the impact hammer can move in the vertical direction and vertically impact the impact pipe, and therefore it is guaranteed that the impact pipe vertically penetrates into a soil layer, and the working efficiency is improved. And the accuracy of experimental results is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling sampling equipment, in particular to an impact sampling penetration experimental device which can adapt to different working surfaces. Background Art

[0002] Impact sampling is the direct observation and sampling of underground rocks and soil layers, which helps to understand the underground geological structure, lithology, composition and age, and then conduct geological surveys and research. It is also suitable for mining underground or seabed natural resources, or taking the actual profile of the stratum, capturing physical samples, and providing experiments to obtain relevant data.

[0003] Traditional impact sampling and penetration test devices are mostly designed for flat working surfaces. When conducting field tests, uneven working surfaces are often encountered, which will make the experimental device support less stable and affect the vertical movement of the hammer, resulting in inaccurate results of the impact test. In addition, a certain preload needs to be applied to the soil layer to be impacted before impacting. Different types of soil layers have different requirements for preload. Therefore, the experimental device needs to be adjusted when impacting different types of soil layers. The experimental device is adjusted by disassembly and reinstallation, which is not flexible enough and inconvenient to disassemble. Utility Model Content

[0004] In view of this, in order to solve the above-mentioned problems existing in the current impact sampling and penetration test device that can adapt to different working surfaces, an embodiment of the utility model provides an impact sampling and penetration test device that can adapt to different working surfaces.

[0005] The embodiment of the utility model provides an impact sampling penetration test device that can adapt to different working surfaces, including:

[0006] A bracket, comprising a main support rod, a pulley assembly and two oblique support rods, wherein the main support rod is vertically arranged, the pulley assembly is arranged at the upper end of the main support rod, and the two oblique support rods are arranged on one side of the main support rod, the upper end of each oblique support rod is rotatably connected to the middle part of the main support rod, and the lower end is provided with a rotatable movable support plate;

[0007] And an impact assembly, which includes a pull rope, a hammer, a guide tube, an impact tube, an impact sensor and a mounting seat, wherein the guide tube and the impact tube can be vertically slidably arranged on the side of the main support rod away from the oblique support rod, the lower end of the guide tube is connected to the upper end of the impact tube through the mounting seat, the impact sensor is installed in the mounting seat, the pull rope bypasses the pulley assembly to connect the hammer, so that the hammer can move vertically downward along the guide tube to impact the impact sensor and drive the impact tube to impact vertically downward.

[0008] Furthermore, a first angle connector is provided in the middle of the main support rod, the upper ends of the two oblique support rods are rotatably connected to the first angle connector respectively, and a second angle connector is provided on the movable support plate.

[0009] Furthermore, the upper ends of the two oblique support rods are connected to the first angle connector via an adapter, the adapter is T-shaped, the upper end of the adapter is rotatably connected to the first angle connector, and the two ends of the lower part of the adapter are rotatably connected to the upper ends of the two oblique support rods respectively.

[0010] Furthermore, the first angle connector includes a pad and a hinge seat, the pad is attached to and fixedly connected to the side of the main support rod, the hinge seat is fixed to the pad, the hinge seat is U-shaped, the upper end of the adapter is inserted into the hinge seat and is hingedly connected to the hinge seat, both ends of the lower part of the adapter are provided with U-shaped plug-in grooves, the upper ends of the two oblique support rods are respectively inserted into the two plug-in grooves and are hingedly connected to the two plug-in grooves.

[0011] Furthermore, a fixed support plate is fixedly connected to the lower end of the main support rod.

[0012] Furthermore, the lower end of the main support rod is vertically connected to the midpoint of the fixed support plate.

[0013] Furthermore, the mounting seat includes a connecting sleeve, an upper joint and a support seat, a limiting ring is provided inside the connecting sleeve, the upper joint is a flange tube, the upper end of the connecting sleeve is connected to the lower end of the guide tube, the lower end of the upper joint is inserted into the connecting sleeve and limited by the limiting ring, so that the upper joint can only move vertically, the support seat is disc-shaped, and an upper limit positioning column extending upward is provided on the upper part, the upper limit positioning column is inserted into the upper joint, the impact sensor sleeve is arranged on the upper limit positioning column, and the bottom of the upper joint is supported on the impact sensor, the outer wall of the support seat is threadedly connected to the inner wall of the lower end of the connecting sleeve to apply a pre-tightening force to the impact sensor, and the bottom of the support seat is connected to the impact tube.

[0014] Furthermore, the mounting seat also includes a contact head, and the lower end of the contact head is connected to the upper end of the upper joint.

[0015] Furthermore, the lower end of the hammer is hemispherical, and the upper end of the contact head is hemispherical.

[0016] Furthermore, the mounting seat also includes a lower joint, and the lower part of the support seat is provided with a lower connecting pipe extending downward, and the upper end of the lower joint is connected to the lower connecting pipe, and the lower end is connected to the impact tube.

[0017] The beneficial effects brought about by the technical solution provided by the embodiment of the utility model are:

[0018] 1. The utility model is an impact sampling and penetration test device that can adapt to different working surfaces. The two oblique support rods can be rotated to adapt to uneven working surfaces, and cooperate with the main support rods to form a stable support structure by utilizing the stability characteristics of the triangle, so as to ensure that the hammer can move in the vertical direction and perform vertical impact on the impact tube, thereby ensuring the vertical penetration of the impact tube into the soil layer and improving the accuracy of the experimental results.

[0019] 2. The utility model discloses an impact sampling and penetration test device which can adapt to different working surfaces. An impact sensor is installed through a mounting seat, and an upper guide tube and a lower impact tube are connected. The upper connecting head can move vertically to transmit the impact force to the impact sensor. The impact sensor is sleeved on the upper limit column of the support seat and is limited between the support seat and the upper connecting head. The outer wall of the support seat is threadedly connected to the inner wall of the lower end of the connecting sleeve. The preload force applied to the impact sensor can be adjusted by twisting the support seat, thereby completing the preload force adjustment of the impact sensor when impacting different types of soil layers. The prestress of the impact sensor can be adjusted without disassembling the experimental device. The adjustment is simple and flexible, thereby improving the accuracy of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of an impact sampling and penetration test device of the utility model which can adapt to different working surfaces;

[0021] Figure 2 is a schematic diagram of a pulley assembly;

[0022] Figure 3 yes Figure 1 A partial enlarged view of the middle A;

[0023] Figure 4 It is a connection diagram of the lower end of the oblique support rod;

[0024] Figure 5 It is a schematic diagram of the connection between the guide tube and the impact tube;

[0025] Figure 6 is a cross-sectional view of the connection between the guide tube and the impact tube;

[0026] Figure 7 This is an exploded view of the mount;

[0027] Figure 8 is a schematic diagram of the connection sleeve.

[0028] In the figure: 1. main support rod; 2. oblique support rod; 3. guide tube; 4. hammer; 5. impact tube; 6. mounting seat; 7. support seat; 8. connecting sleeve; 9. upper joint; 10. lower joint; 11. limiting ring; 12. contact head; 13. wire hole; 14. upper limit column; 15. lower connecting pipe; 16. impact sensor; 17. threaded joint; 18. pulley assembly; 19. vertical pulley block; 20. horizontal pulley block; 21. outer frame; 22. pulley; 23. first angle connector; 24. pad; 25. hinge seat; 26. adapter; 27. second angle connector; 28. hinge block; 29. ​​slide rail; 30. straightening sleeve; 31. fixed support plate; 32. movable support plate. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will further describe the implementation of the utility model in conjunction with the accompanying drawings. The following is a preferred embodiment of the utility model among multiple possible embodiments, which is intended to provide a basic understanding of the utility model, but is not intended to confirm the key or decisive elements of the utility model or limit the scope of protection.

[0030] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0031] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0032] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0033] It should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0034] Please refer to Figure 1-8The embodiment of the utility model provides an impact sampling and penetration test device, which mainly includes a bracket and an impact assembly. The bracket includes a main support rod 1, a pulley assembly 18 and two oblique support rods 2. The impact assembly includes a pull rope, a hammer 4, a guide tube 3, an impact tube 5, an impact sensor 16 and a mounting seat 6.

[0035] During the experiment, the main support rod 1 was set vertically. Figure 1 and 2 As shown, the main support rod 1 is generally a steel pipe, such as a square steel pipe selected in this embodiment. The pulley assembly 18 is arranged at the upper end of the main support rod 1, and the pulley assembly 18 is used to guide the pull rope of the traction hammer 4, so that the pull rope can pull the hammer 4 to move vertically. Specifically, the pulley assembly 18 includes a vertical pulley group 19 and a horizontal pulley group 20. The vertical pulley group 19 is vertically arranged at the upper end of the main support rod 1, and the horizontal pulley group 20 is horizontally arranged on one side of the main support rod 1. The vertical pulley group 19 and the horizontal pulley group 20 both include an outer frame 21, and two pulleys 20 rotatably arranged in the outer frame 21. The two pulleys 20 are arranged side by side, and the pull rope can pass between the two pulleys 20.

[0036] like Figure 3 and 4 As shown, the two oblique support rods 2 are arranged on one side of the main support rod 1 and are rotatably connected to the middle of the main support rod 1. The oblique support rods 2 are generally made of steel pipes, and both oblique support rods 2 can be rotated to adjust their positions relative to the main support rod 1. A first angle connector 23 is provided in the middle of the main support rod 1, and the upper ends of the two oblique support rods 2 are rotatably connected to the first angle connector 23, respectively, and a second angle connector 27 is provided on the movable support plate 32.

[0037] Specifically, the upper ends of the two oblique support rods 2 are connected to the first angle connector 23 via an adapter 26, and the adapter 26 is T-shaped. The upper end of the adapter 26 is rotatably connected to the first angle connector 23, and the two ends of the lower part of the adapter 26 are respectively rotatably connected to the upper ends of the two oblique support rods 2, so that the oblique support rods 2 can rotate around two relatively vertical axes.

[0038] The first angle connector 23 includes a backing plate 24 and a hinge seat 25. The backing plate 24 is attached to and fixedly connected to one side of the main support rod 1. The hinge seat 25 is fixed on the backing plate 24. The hinge seat 25 is U-shaped. The upper end of the adapter 26 is inserted into the hinge seat 25 and is hingedly connected to the hinge seat 25. Both ends of the lower part of the adapter 26 are provided with U-shaped plug-in grooves. The upper ends of the two oblique support rods 2 are respectively inserted into the two plug-in grooves and are hingedly connected to the two plug-in grooves. In this way, the upper ends of the oblique support rods 2 can rotate around the hinge seat 25 and the plug-in grooves.

[0039] In order to achieve stable fixation of the lower ends of the main support rod 1 and the oblique support rod 2 on the working surface, the lower end of the main support rod 1 is provided with a fixed support plate 31, and the fixed support plate 31 is vertically connected to the lower end of the main support rod 1. The lower end of the oblique support rod 2 is provided with a rotatable movable support plate 32, and the movable support plate 32 is provided with a second angle connector 27, and the second angle connector 27 has the same structure as the first angle connector 23. The lower end of the oblique support rod 2 is connected to the second angle connector 27 through a hinge block 28, and the upper end of the hinge block 28 is hingedly connected to the lower end of the oblique support rod 2, and the lower end is hingedly connected to the second angle connector 27. In this way, the movable support rods at the lower ends of the two oblique support rods 2 can be flexibly rotated and adjusted, so that they can be stably supported on an uneven working surface.

[0040] The guide tube 3 and the impact tube 5 are arranged on one side of the main support rod 1, specifically on the side away from the two oblique support rods 2. The guide tube 3 is slidably connected to the main support rod 1 and can slide along the vertical direction, and the upper end of the guide tube 3 is close to the horizontal pulley block 20. The impact tube 5 is arranged below the guide tube 3, and the impact tube 5 is slidably connected to the main support rod 1 and can slide along the vertical direction.

[0041] A slide rail 29 is provided on one side of the main support rod 1. The slide rail 29 is vertically arranged. A plurality of slidable straightening sleeves 30 are arranged at intervals on the slide rail 29. Some of the straightening sleeves 30 cover the guide tube 3, and other straightening sleeves 30 cover the impact tube 5. In this way, the straightening sleeve 30 can slide vertically along the slide rail 29, thereby driving the guide tube 3 and the impact tube 5 to slide vertically downward.

[0042] like Figure 5 , 6 As shown in FIG. 7 , the impact sensor 16 is disc-shaped and has an inner hole in the middle. The impact sensor 16 is installed between the lower end of the guide tube 3 and the upper end of the impact tube 5 through the mounting seat 6. The mounting seat 6 includes a connecting sleeve 8, an upper joint 9, a support seat 7 and a lower joint 10.

[0043] like Figure 8 As shown, a limiting ring 11 is provided inside the connecting sleeve 8, the upper joint 9 is a flange tube, the upper end of the connecting sleeve 8 is threadedly connected to the lower end of the guide tube 3, the inner diameter of the limiting ring 11 is approximately the same as the outer diameter of the upper part of the upper joint 9, the lower end of the upper joint 9 is inserted into the connecting sleeve 8 and is limited by the limiting ring 11, so that the upper joint 9 can only move vertically.

[0044] The support seat 7 is disc-shaped, and an upper limit post 14 extending upward is provided on the upper part of the support seat, and a lower connecting pipe 15 extending downward is provided on the lower part of the support seat. The upper part of the support seat 7 is inserted into the lower part of the connecting sleeve 8, and the upper limit post 14 is inserted into the upper joint 9. The outer diameter of the upper limit post 14 is approximately the same as the inner diameter of the upper joint 9, so that the upper joint 9 is restricted between the limiting ring 11 and the upper limit post 14 and can only move in the vertical direction.

[0045] The impact sensor 16 is sleeved on the upper limit column 14, the bottom of the upper joint 9 is supported on the impact sensor 16, and the outer wall of the support seat 7 is threadedly connected to the inner wall of the lower end of the connecting sleeve 8. By rotating the support seat 7, the support seat 7 can be raised and lowered, thereby cooperating with the bottom of the upper joint 9 to adjust the preload force on the impact sensor 16. Here, the inner wall of the lower end of the connecting sleeve 8 is provided with an internal thread, and the outer wall of the support seat 7 is provided with an external thread, the external thread is threadedly connected to the internal thread, and the length of the internal thread is greater than the length of the external thread, so that the preload force range that can be adjusted is relatively large.

[0046] The bottom of the support seat 7 is connected to the impact tube 5. Specifically, the lower connecting tube 15 is threadedly connected to the upper end of the lower joint 10, and the lower end of the lower joint 10 is threadedly connected to the upper end of the impact tube 5.

[0047] In order to make the impact force of the hammer 4 more concentrated, the mounting seat 6 also includes a contact head 12, the upper end of the contact head 12 is hemispherical, and the lower end of the contact head 12 is provided with a threaded joint 17, the threaded joint 17 is inserted into the upper end of the upper joint 9 and is threadedly connected with the upper end of the upper joint 9, and the lower surface of the contact head 12 is in contact with the upper end surface of the upper joint 9. The lower end of the hammer 4 is hemispherical, and the radius of the upper end of the contact head 12 is approximately the same as the radius of the lower end of the hammer 4, and is smaller than the inner diameter of the guide tube 3. In this way, the hammer 4 contacts the contact head 12 when moving downward, and performs a point-to-point impact on the contact head 12, so that the impact force is more concentrated, so that the impact force is transmitted to the upper joint 9, and while ensuring that the impact force is transmitted in the vertical direction, the impact sensor 16 accurately detects the magnitude of the impact force.

[0048] In addition, in order to output the sensing signal of the impact sensor 16, the impact assembly also includes a charge amplifier and an impact detection system, the impact sensor 16 is connected to the charge amplifier, and the charge amplifier is connected to the impact detection system. Specifically, a wire hole 13 is provided on the connecting sleeve 8, and the wire of the impact sensor 16 passes through the lower pressure plate 16 and is led out from the wire hole 13 to connect to the charge amplifier. When the hammer 4 impacts, the impact sensor 16 generates a charge signal, and the charge amplifier processes the charge signal so that the charge signal conforms to the range of the impact (hydraulic impactor intelligence) detection system. The detection system converts the charge signal into a digital signal to obtain impact force data.

[0049] When the impact sampling penetration test device is used to conduct the impact sampling penetration test, the main support rod 1 is firstly set vertically, and when the working surface is uneven, the two oblique support rods 2 are rotated and adjusted so that the lower ends of the two oblique support rods 2 are stably supported on the working surface, and then the main support rod 1 and the two oblique support rods 2 are stably fixed on the working surface; then the hammer 4 is pulled down from a predetermined height by a pull rope, and the hammer 4 hits the contact head 12, and the contact head 12 transmits the impact force to the upper joint 9, and the upper joint 9 moves downward to impact the impact sensor 16, and the impact sensor 16 moves vertically to drive the impact tube 5 to move downward, so that the lower end of the impact tube 5 penetrates into the soil layer, and the impact sensor 16 detects the magnitude of the impact force. When conducting impact sampling penetration tests on different types of soil layers, the impact tube 5 is driven to rotate upward or downward by twisting the lower connecting tube 15 of the support seat 7, and the preload force of the impact sensor 16 applied by the support seat 7 is adjusted. The preload force of the impact sensor 16 in different soil layers is adjusted so that the preload force of the impact sensor 16 meets the requirements of impact penetration.

[0050] In this article, the directional words such as front, back, top, and bottom involved are defined by the positions of the parts in the drawings and the positions of the parts relative to each other, just for the sake of clarity and convenience in expressing the technical solution. It should be understood that they are relative concepts and can change accordingly according to different ways of use and placement, and the use of the directional words should not limit the scope of protection claimed in this application.

[0051] In the absence of conflict, the above embodiments and features in the embodiments can be combined with each other. The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An impact sampling and penetration test device that can adapt to different working surfaces, characterized in that: include: A bracket, comprising a main support rod, a pulley assembly and two oblique support rods, wherein the main support rod is vertically arranged, the pulley assembly is arranged at the upper end of the main support rod, and the two oblique support rods are arranged on one side of the main support rod, the upper end of each oblique support rod is rotatably connected to the middle part of the main support rod, and the lower end is provided with a rotatable movable support plate; And an impact assembly, which includes a pull rope, a hammer, a guide tube, an impact tube, an impact sensor and a mounting seat, wherein the guide tube and the impact tube can be vertically slidably arranged on the side of the main support rod away from the oblique support rod, the lower end of the guide tube is connected to the upper end of the impact tube through the mounting seat, the impact sensor is installed in the mounting seat, the pull rope bypasses the pulley assembly to connect the hammer, so that the hammer can move vertically downward along the guide tube to impact the impact sensor and drive the impact tube to impact vertically downward.

2. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 1 is characterized in that: A first angle connector is provided in the middle of the main support rod, the upper ends of the two oblique support rods are rotatably connected to the first angle connector respectively, and a second angle connector is provided on the movable support plate.

3. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 2 is characterized by: The upper ends of the two oblique support rods are connected to the first angle connector via an adapter, the adapter is T-shaped, the upper end of the adapter is rotatably connected to the first angle connector, and the two ends of the lower part of the adapter are rotatably connected to the upper ends of the two oblique support rods.

4. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 3 is characterized in that: The first angle connector includes a pad and a hinge seat, the pad is attached to and fixedly connected to the side of the main support rod, the hinge seat is fixed to the pad, the hinge seat is U-shaped, the upper end of the adapter is inserted into the hinge seat and hingedly connected to the hinge seat, both ends of the lower part of the adapter are provided with U-shaped plug-in grooves, the upper ends of the two oblique support rods are respectively inserted into the two plug-in grooves and hingedly connected to the two plug-in grooves.

5. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 1 is characterized in that: The lower end of the main support rod is provided with a fixed support plate which is fixedly connected.

6. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 5 is characterized in that: The lower end of the main support rod is vertically connected to the midpoint of the fixed support plate.

7. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 1 is characterized in that: The mounting seat includes a connecting sleeve, an upper joint and a supporting seat, a limiting ring is provided inside the connecting sleeve, the upper joint is a flange tube, the upper end of the connecting sleeve is connected to the lower end of the guide tube, the lower end of the upper joint is inserted into the connecting sleeve and limited by the limiting ring, so that the upper joint can only move vertically, the supporting seat is a disc, and an upper limit positioning column extending upward is provided on the upper part, the upper limit positioning column is inserted into the upper joint, the impact sensor sleeve is arranged on the upper limit positioning column, the bottom of the upper joint is supported on the impact sensor, the outer wall of the support seat is threadedly connected to the inner wall of the lower end of the connecting sleeve to apply a pre-tightening force to the impact sensor, and the bottom of the support seat is connected to the impact tube.

8. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 7 is characterized by: The mounting seat also includes a contact head, the lower end of which is connected to the upper end of the upper connector.

9. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 8 is characterized by: The lower end of the punch is hemispherical, and the upper end of the contact head is hemispherical.

10. The impact sampling and penetration test device that can adapt to different working surfaces as claimed in claim 7 is characterized in that: The mounting seat also includes a lower joint. A lower connecting pipe extending downward is provided at the lower portion of the support seat. The upper end of the lower joint is connected to the lower connecting pipe, and the lower end is connected to the impact pipe.

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