Water conservancy and hydropower engineering foundation geotechnical test detection soil sampling equipment

Abstract

The utility model discloses water conservancy and hydropower engineering foundation rock soil test detection soil sampling equipment which comprises a sleeve, a hollow drill rod is arranged in the sleeve, a driver is assembled at the top end of the hollow drill rod, the top end of the sleeve is connected with a turned-over edge, a screw rod is arranged on the lower surface of the turned-over edge, and a supporting mechanism is assembled on the screw rod. The supporting mechanism comprises a connecting ring fixed to the bottom of the sleeve, a plurality of telescopic assemblies are distributed on the side face of the connecting ring in a circumferential mode, and the ends of the telescopic assemblies are connected with ground grabbing assemblies. In order to guarantee that the whole equipment has good stability in the drilling process, the supporting mechanism is arranged on the sleeve, the sleeve can be well supported through the supporting mechanism, vibration of the hollow drill rod in the drilling process is greatly reduced, the supporting mechanism can be adjusted, and the supporting mechanism is convenient to adjust. Therefore, the supporting mechanism can be adjusted according to different working environments and requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of geological sampling equipment, in particular to a soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering. Background Art

[0002] During the construction of water conservancy projects, it is often necessary to sample and test the foundation rock and soil in order to understand the mechanical performance indicators of the rock and soil. During the sampling process, it is necessary to use a soil sampler to take rock and soil samples for testing; however, in the prior art, a hand-held soil sampler is used to sample the rock and soil samples. The hand-held soil sampler performs drilling during the sampling process, resulting in poor stability. In order to solve this problem, Chinese utility model patent CN220339718U discloses a soil layer sampling device, which is manually pressed with the cooperation of an adjustment mechanism, and the fixed rod is slidably connected to the fixed frames on both sides. When the user presses the fixed rod downward, it also slides up and down in the fixed frame, which ensures mobility while also achieving better stability, so that the soil sampling device can be firmly and vertically inserted into the soil. In order to maintain its stability, an adjustable conical fixture is installed at the bottom of the fixed frame. For uneven ground, its own stability can be achieved through adjustment.

[0003] Although the above-mentioned sampling device can improve the stability of the device during sampling to a certain extent, its supporting components cannot be adjusted. Therefore, when the sampling device is working and the shaking amplitude is large, the fixed supporting components cannot meet the requirements of supporting the sampling device stably. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the problems mentioned in the above background technology, the utility model adopts the following technical solutions.

[0006] A soil-taking device for testing and detecting foundation rock and soil of a water conservancy and hydropower project comprises a sleeve, a hollow drill rod is built in the sleeve, a driver is mounted on the top of the hollow drill rod, a flange is connected to the top of the sleeve, a screw is arranged on the lower surface of the flange, a support mechanism is mounted on the screw, the support mechanism comprises a connecting ring fixed to the bottom of the sleeve, a plurality of telescopic components are distributed in a circular pattern on the side surface of the connecting ring, a gripping component is connected to the end of the telescopic component, the gripping component can be moved relative to the sleeve through the telescopic component, so as to adjust the distance between the gripping component and the sleeve.

[0007] Preferably, the gripping assembly comprises a pillow block, and the upper surface of the pillow block is connected with a connecting sleeve, a connecting column is arranged in the connecting sleeve, and the connecting column passes through the lower surface of the pillow block and is connected with a gripping nail.

[0008] Preferably, a plurality of locking holes are equidistantly arranged on the side of the connecting sleeve, and a waist hole is also arranged on the side of the connecting sleeve to connect the plurality of locking holes. A fixing ring is connected to the connecting column by a bearing, and a baffle rod is connected to the side of the fixing ring.

[0009] Preferably, a spring is placed in the connecting sleeve, and when the connecting post is assembled in the connecting sleeve, the spring is sleeved on the connecting post, and the end of the spring abuts against the lower surface of the fixing ring.

[0010] Preferably, the telescopic assembly includes a support arm, the end of the support arm is symmetrically provided with a receiving hole, an extension rod is movably inserted in the receiving hole, and the end of the pillow block in the gripping assembly is connected to the end of the extension rod.

[0011] Preferably, the support mechanism also includes a sleeve plate, which is provided with a fixing hole for the screw to pass through, the inner diameter of the fixing hole is larger than the outer diameter of the screw, and the screw passes through the fixing hole so that the sleeve plate can move up and down along the length direction of the screw, and a nut is threadedly connected on the screw and located on the lower surface of the sleeve plate, and the sleeve plate is limited by the nut, and a first connecting ear is connected to the side of the sleeve plate, and a support rod is pinned to the first connecting ear, and a second connecting ear is provided on the upper surface of the pillow block, and the lower end of the support rod is pinned to the second connecting ear.

[0012] Preferably, the support mechanism also includes a sleeve plate, which is provided with a fixing hole for the screw to pass through, the inner diameter of the fixing hole is larger than the outer diameter of the screw, and the screw passes through the fixing hole so that the sleeve plate can move up and down along the length direction of the screw, and nuts are threadedly connected on the screw and at the upper and lower ends of the sleeve plate. The sleeve plate is located between the nuts and the sleeve plate is limited by the nuts. A first connecting ear is connected to the side of the sleeve plate, and a support rod is pinned to the first connecting ear. A second connecting ear is provided on the upper surface of the pillow block, and the lower end of the support rod is pinned to the second connecting ear.

[0013] Preferably, a connecting rod is provided on the upper surface of the flange, an armrest is slidably connected to the connecting rod, and the driver is fixedly connected to the center position of the lower surface of the armrest.

[0014] Preferably, a connecting frame is mounted on the connecting rod, a cylinder is mounted at the center of the upper surface of the connecting frame, and an output end of the cylinder passes through the connecting frame and is connected to the center of the upper surface of the handrail.

[0015] Preferably, the upper end of the connecting rod is provided with a thread, and a through hole with a diameter larger than the diameter of the connecting rod is opened on the connecting frame. The connecting frame is sleeved on the connecting rod through the through hole, and nuts are threadedly connected on the threaded section of the connecting rod and at the upper and lower ends of the connecting frame.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) In order to ensure the stability of the hollow drill rod during the sampling process, the utility model has a sleeve arranged outside the hollow drill rod, and the sleeve is connected to the hollow drill rod through a plurality of connecting parts. When the vibration generated by the hollow drill rod during operation is transmitted to the sleeve, a supporting mechanism is arranged outside the sleeve, and the sleeve is supported by the supporting mechanism, thereby reducing the vibration of the hollow drill rod during the drilling process and achieving the operating stability of the device.

[0018] (2) In order to obtain better contact with the ground and make the support mechanism have a firmer grip, the support mechanism of the utility model is also provided with a grip assembly, which is mainly composed of a connecting sleeve, a connecting column and a gripping nail. After the device is placed, the connecting column is stepped on so that the connecting column moves downward in the connecting sleeve, and the connecting column pushes the gripping nail to embed into the soil layer to achieve grip. At the same time, in order to make the gripping nail contact with the soil layer more closely, the utility model is also provided with a fixing ring on the connecting column, and a blocking rod is provided on the side of the fixing ring. A locking hole is provided on the side of the connecting sleeve. By moving the blocking rod so that the blocking rod is inserted into the locking hole, the connecting column can be fixed, so that the gravity of the device acts on the connecting column, preventing the gripping nail from loosening in the soil due to the shaking of the device. The support mechanism in the utility model is an adjustable structure. By adjusting, the gripping assembly in the support mechanism can be extended outward, thereby improving the static stability of the sleeve on the horizontal plane. The outward extension allows the support mechanism to occupy a larger area, thereby obtaining better supporting force. When the device is subjected to vibration, the wider support mechanism can provide better stability and disperse the impact force, reducing the possibility of displacement or overturning due to vibration. Moreover, through adjustment, it can be ensured that the support point is in the ideal position. In an environment with limited space, a support mechanism that can be flexibly adjusted can maximize the use of available space while ensuring the stability and safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structure diagram of the earth-taking equipment.

[0020] Figure 2 Schematic diagram of the sleeve and its supporting mechanism assembly.

[0021] Figure 3 The structural diagram of the supporting mechanism.

[0022] Figure 4 This is a schematic diagram of the split structure of the grip component.

[0023] Figure 5 Schematic diagram of the assembly structure of the drill pipe and its drive assembly.

[0024] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0025] 100, sleeve; 100a, flange; 101, hollow drill rod; 101a, driver; 101b, cylinder; 102, connecting rod; 102a, handrail; 102b, connecting frame; 103, screw;

[0026] 200, support mechanism; 201, connecting ring; 201a, support arm; 201b, extension rod; 202, sleeve plate; 202a, first connecting ear; 203, grip assembly; 203a, pillow block; 203b, connecting sleeve; 203b-1, lock hole; 203c, connecting column; 203c-1, gripping nail; 203d, fixing ring; 203d-1, stop rod; 203e, spring; 203f, second connecting ear; 204, support rod. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] Figure 1 1 is a schematic diagram of the structure of the earth-taking equipment for foundation rock and soil testing of water conservancy and hydropower projects in this embodiment. The earth-taking equipment in this embodiment includes a sleeve 100, and a flange 100a is integrally connected to the top of the sleeve 100. The outer contour of the flange 100a is a rectangular structure, thereby forming four vertex installation areas. Connecting rods 102 are provided at the four corners of the top of the flange 100a. Handrails 102a are slidably connected to the connecting rods 102 on one set of diagonals of the flange 100a. A driver 101a is installed in the center of the lower surface of the handrail 102a. The driving end of the driver 101a is connected to a hollow drill rod 101, which is placed in the sleeve 100. The driver 101a is used to drive the hollow drill rod 101 to rotate so as to facilitate drilling and sampling of rock and soil. In this embodiment, the end of the hollow drill rod 101 extends to the outside of the bottom of the sleeve 100 for drilling.

[0031] Figure 2 1 is a schematic diagram of the structure of the support mechanism 200 in this embodiment. In this embodiment, screws 103 are provided at the four corners of the lower surface of the flange 100a, and the support mechanism 200 is assembled on the screws 103. The support mechanism 200 includes a connecting ring 201 fixed to the bottom of the sleeve 100, and the side of the connecting ring 201 is circumferentially distributed with multiple telescopic components. The end of the telescopic component is connected to a gripping component 203. The gripping component 203 can be telescoped relative to the sleeve 100 through the telescopic component, so as to adjust the distance between the gripping component 203 and the sleeve 100. In this embodiment, when the gripping component 20 When the distance from the sleeve 100 is far, the support mechanism 200 occupies a larger area, so that the sleeve 100 can be well supported. In this embodiment, the telescopic assembly includes a support arm 201a, and the end of the support arm 201a is symmetrically provided with a receiving hole, and an extension rod 201b is movably inserted in the receiving hole. The end of the gripping assembly 203 is connected to the end of the extension rod 201b. The extension rod 201b can move on the support arm 201a to adjust the distance between the gripping assembly 203 and the sleeve 100, thereby improving the static stability of the sleeve 100 on the horizontal plane.

[0032] See also Figure 4 The gripping assembly 203 in this embodiment includes a pillow block 203a, which is in direct contact with the ground. The friction between the pillow block 203a and the ground enables the gripping assembly 203 to have good anti-slip performance, which can reduce the displacement of the hollow drill rod 101 caused by vibration during the drilling process to a certain extent. The upper surface of the pillow block 203a is connected to a connecting sleeve 203b, and a connecting column 203c is arranged in the connecting sleeve 203b. The connecting column 203c passes through the lower surface of the pillow block 203a and is connected to a gripping nail 203c-1. During the process, when the sleeve 100 is placed at the sampling position, the connecting column 203c is stepped on, so that the connecting column 203c moves downward in the connecting sleeve 203b, and the connecting column 203c pushes the grasping nail 203c-1 to be inserted into the soil layer to grasp the ground. The equipment in this embodiment is loaded with a bubble level to display the horizontality of the equipment installation. By applying different stepping forces to the connecting column 203c, the grasping nail 203c-1 is inserted into the soil to different depths, so that the insertion depth of the grasping nail 203c-1 can be adjusted according to the needs of the actual environment.

[0033] See also Figure 4Since the grasping nail 203c-1 is inserted into the soil to ensure the stability of the equipment, the grasping nail 203c-1 is easily loosened due to the large vibration of the equipment during sampling. In order to solve this problem, a plurality of locking holes 203b-1 are equidistantly arranged on the side of the connecting sleeve 203b in this embodiment, and a waist hole is also arranged on the side of the connecting sleeve 203b to connect the plurality of locking holes 203b-1. A fixing ring 203d is connected to the connecting column 203c by a bearing, and the side of the fixing ring 203d is integrally A blocking rod 203d-1 is connected. In the initial state, the connecting column 203c moves downward by stepping on the fixing ring 203d and the blocking rod 203d-1, and the blocking rod 203d-1 moves downward along the length direction of the waist hole. When the force on the connecting column 203c stops, the blocking rod 203d-1 is pushed so that the pushing rod 203d-1 enters the locking hole 203b-1 from the waist hole, and the locking hole 203b-1 is used to constrain the blocking rod 203d-1, so that The stability of the grasping nail 203c-1 is ensured. In addition, in this embodiment, a plurality of locking holes 203b-1 are arranged along the longitudinal direction of the connecting sleeve 203b, so that when the grasping nail 203c-1 is inserted into the soil at different depths, the locking hole 203b-1 and the lever 203d-1 can be used to achieve position limiting. Furthermore, a spring 203e is placed in the connecting sleeve 203b. When the connecting column 203c is assembled in the connecting sleeve 203b, the spring 203e It is sleeved on the connecting column 203c, and the end of the spring 203e is in contact with the lower surface of the fixing ring 203d. The spring 203e is compressed when the connecting column 203c descends. When it is stored, the blocking rod 203d-1 is reset, and the connecting column 203c is reset upward under the action of the elastic force of the spring 203e, so that the connecting column 203 drives the grasping nail 203c-1 to move upward, thereby loosening the grasping nail 203c-1 so as to facilitate the grasping nail 203c-1 to be pulled out of the soil.

[0034] See also Figure 5 During the drilling process, the hollow drill rod 101 in this embodiment rotates into the rock and soil. In this embodiment, a connecting frame 102b is sleeved on the upper end of the connecting rod 102, and a cylinder 101b is installed at the center of the upper surface of the connecting frame 102b. The output end of the cylinder 101b passes through the connecting frame 102b and is connected to the center of the upper surface of the handrail 102a. The handrail 102a is pushed downward by the cylinder 101b to achieve the height reduction of the hollow drill rod 101.

[0035] See also Figure 1-3In order to further ensure that the support mechanism 200 supports the sleeve 100, in this embodiment, a sleeve plate 202 is sleeved on the screw rod 103, and a first connecting ear 202a is integrally connected to the side of the sleeve plate 202, and a support rod 204 is pinned on the first connecting ear 202a. A second connecting ear 203f is provided on the upper surface of the pillow block 203a and located on one side of the connecting sleeve 203b, and the lower end of the support rod 204 is pinned on the second connecting ear 203f, so that the support rod 204 supports the sleeve 100 against the support, making the sleeve 100 more stable. At the same time, the sleeve 100 is assembled with the sleeve plate 202, the connecting ring 201 and the support rod 204 so that the center of gravity of the sleeve 100 is downward, thereby further improving the stability during drilling; in order to ensure that the support mechanism 200 The sleeve 100 can be supported in a better state. The support mechanism 200 in the utility model can be adjusted in height. Through the height adjustment, on the one hand, the center of gravity position of the support mechanism 200 is changed to improve the stability of the equipment. On the other hand, the distance between the gripping assembly 203 and the sleeve 100 can be adjusted to further ensure the stability of the equipment. In this embodiment, a fixing hole is provided on the sleeve 202, and the screw 103 passes through the fixing hole and is in a non-contact state with the fixing hole, so that the sleeve 202 can move up and down on the screw 103. When the sleeve 202 moves along the length direction of the screw 103, the gripping assembly 203 can be driven to move by the support rod 204, so as to adjust the distance between the gripping assembly 203 and the sleeve 100.

[0036] In addition, nuts are threadedly connected on the screw rod 103 in the utility model and on the upper and lower ends of the sleeve plate 202. The sleeve plate 202 is located between the nuts and is limited by the nuts. When the sleeve plate 202 is adjusted in height, the nut under the sleeve plate 202 is first rotated to move the nut downward on the screw rod 103, making room for the lifting and lowering of the sleeve plate 202 so as to drive the sleeve plate 202 to move downward.

[0037] The upper end of the connecting rod 102 in the utility model is provided with a thread, and the connecting frame 102b also has a through hole with a diameter larger than the diameter of the connecting rod 102, and the connecting frame 102b is sleeved on the connecting rod 102 through the through hole, and the through hole on the connecting frame 102b in this embodiment is in a non-contact state with the connecting rod 102 so that the connecting frame 102b can move up and down the connecting rod 102, and nuts are threadedly connected on both sides of the connecting frame 102b on the threaded section of the connecting rod 102 to limit the connecting frame 102b. Therefore, the connecting frame 102b in this embodiment can be easily removed from the connecting rod 102 by removing the nut. Its function is to facilitate the removal of the hollow drill rod 101 from the sleeve 100, so as to facilitate the removal of the sample in the hollow drill rod 101. The specific process is: remove the nut on the upper surface of the connecting frame 102b from the connecting rod 102, and then remove the connecting frame 102b, the cylinder 101b, the handrail 102a, the driver 101b and the hollow drill rod 101, so as to facilitate the removal of the rock and soil sample in the hollow drill rod 101.

[0038] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A soil sampling device for testing and detecting foundation soil of a water conservancy and hydropower project, comprising a sleeve (100), wherein a hollow drill rod (101) is built in the sleeve (100), a driver (101a) is mounted on the top of the hollow drill rod (101), a flange (100a) is connected to the top of the sleeve (100), a screw (103) is disposed on the lower surface of the flange (100a), and a support mechanism (200) is mounted on the screw (103), wherein the sleeve (100) is characterized in that: The support mechanism (200) comprises a connecting ring (201) fixed at the bottom of the sleeve (100); a plurality of telescopic components are distributed in a circular pattern on the side of the connecting ring (201); the ends of the telescopic components are connected to gripping components (203); the gripping components (203) can be moved relative to the sleeve (100) via the telescopic components, thereby adjusting the distance between the gripping components (203) and the sleeve (100).

2. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 1 is characterized by: The gripping assembly (203) comprises a pillow block (203a), wherein the upper surface of the pillow block (203a) is connected to a connecting sleeve (203b), a connecting column (203c) is arranged inside the connecting sleeve (203b), and the connecting column (203c) penetrates the lower surface of the pillow block (203a) and is connected to a gripping nail (203c-1).

3. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 2 is characterized by: A plurality of locking holes (203b-1) are equidistantly arranged on the side of the connecting sleeve (203b), and a waist hole is also arranged on the side of the connecting sleeve (203b) to connect the plurality of locking holes (203b-1). A fixing ring (203d) is connected to the connecting column (203c) by means of a bearing, and a blocking rod (203d-1) is connected to the side of the fixing ring (203d).

4. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 3 is characterized by: A spring (203e) is placed in the connecting sleeve (203b); when the connecting column (203c) is assembled in the connecting sleeve (203b), the spring (203e) is sleeved on the connecting column (203c), and the end of the spring (203e) contacts the lower surface of the fixing ring (203d).

5. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 2 is characterized by: The telescopic assembly comprises a support arm (201a), the end of the support arm (201a) is symmetrically provided with a receiving hole, an extension rod (201b) is movably inserted into the receiving hole, and the end of the pillow block (203a) in the gripping assembly (203) is connected to the end of the extension rod (201b).

6. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 2 is characterized by: The support mechanism (200) further comprises a sleeve plate (202), the sleeve plate (202) being provided with a fixing hole for the screw rod (103) to pass through, the inner diameter of the fixing hole being larger than the outer diameter of the screw rod (103), the screw rod (103) passing through the fixing hole enabling the sleeve plate (202) to move up and down along the length direction of the screw rod (103), a nut being threadedly connected on the screw rod (103) and located on the lower surface of the sleeve plate (202), the sleeve plate (202) being limited by the nut, a first connecting ear (202a) being connected to the side surface of the sleeve plate (202), a support rod (204) being pinned to the first connecting ear (202a), a second connecting ear (203f) being provided on the upper surface of the pillow block (203a), and the lower end of the support rod (204) being pinned to the second connecting ear (203f).

7. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 2 is characterized by: The support mechanism (200) further comprises a sleeve plate (202), the sleeve plate (202) being provided with a fixing hole for the screw rod (103) to pass through, the inner diameter of the fixing hole being larger than the outer diameter of the screw rod (103), the screw rod (103) passing through the fixing hole allowing the sleeve plate (202) to move up and down along the length direction of the screw rod (103), nuts being threadedly connected at both upper and lower ends of the screw rod (103) and located on the sleeve plate (202), the sleeve plate (202) being located between the nuts and limiting the sleeve plate (202) by means of the nuts, a first connecting ear (202a) being connected to the side surface of the sleeve plate (202), a support rod (204) being pinned to the first connecting ear (202a), a second connecting ear (203f) being provided on the upper surface of the pillow block (203a), and the lower end of the support rod (204) being pinned to the second connecting ear (203f).

8. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 1 is characterized by: The upper surface of the flange (100a) is provided with a connecting rod (102), and an armrest (102a) is slidably connected to the connecting rod (102), and the driver (101a) is fixedly connected to a central position of the lower surface of the armrest (102a).

9. The soil sampling equipment for testing and detecting foundation rock and soil of water conservancy and hydropower engineering according to claim 8 is characterized by: The connecting rod (102) is equipped with a connecting frame (102b), a cylinder (101b) is installed at the center of the upper surface of the connecting frame (102b), and the output end of the cylinder (101b) passes through the connecting frame (102b) and is connected to the center of the upper surface of the handrail (102a).

10. The soil sampling equipment for foundation rock and soil testing of water conservancy and hydropower engineering according to claim 9, characterized in that: The upper end of the connecting rod (102) is provided with a thread, and a through hole having a diameter greater than that of the connecting rod (102) is provided on the connecting frame (102b); the connecting frame (102b) is sleeved on the connecting rod (102) through the through hole, and nuts are threadedly connected on the threaded section of the connecting rod (102) and at both the upper and lower ends of the connecting frame (102b).

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