High-stability standard penetrometer

Abstract

The utility model relates to the field of penetrometers, and discloses a high-stability standard penetrometer which comprises a supporting seat, a supporting rod is fixedly connected to the upper portion of the supporting seat, a stabilizing frame is arranged on the front side of the supporting rod, a penetrometer is arranged on the inner wall of the front portion of the stabilizing frame, and a center penetrating hammer is arranged on the upper portion of the penetrometer. A supporting mechanism is arranged on the upper portion of the supporting base and comprises a supporting assembly and an auxiliary assembly, the supporting assembly comprises a fixing shell, and the fixing shell is fixedly connected to the upper portion of the supporting base. According to the utility model, the fixing shell is fixed on the supporting seat, and the extension plate is matched with the fixing shell through the limiting piece and the compression spring, so that the supporting plate can be driven to extend out, an instrument can be more stably placed on the ground during working, shaking and deviation are reduced, and the fixing piece of the auxiliary assembly slides in the stabilizing groove to further assist in supporting; the instrument is kept stable in the test process, and the accuracy of test data is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of penetration instrument, especially to a high stability standard penetration instrument. BACKGROUND

[0002] The standard penetration instrument is hit into the soil with a certain quality of a driving hammer, and the engineering properties of the soil are determined according to the penetration resistance in the soil, that is, the number of hammer blows required for a certain depth of penetration.

[0003] The traditional standard penetration instrument needs to be placed on the ground for work, and the supporting area is limited, and the instrument may be shaken and deviated due to external factors, including slight unevenness of the ground and vibration of the construction site, which may cause the penetrator to be unable to be vertically hit into the soil, affect the accuracy of the number of hammer blows, and cause deviation of the measured soil layer data, making it difficult for engineers to accurately determine the true properties of the soil layer. SUMMARY

[0004] To make up for the above shortcomings, the utility model provides a high stability standard penetration instrument, which aims to improve the problem of the traditional standard penetration instrument in the prior art, that is, the supporting effect is limited and the accuracy of the number of hammer blows is affected.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a high stability standard penetration instrument, comprising a support seat, a support rod is fixedly connected to the upper part of the support seat, a stabilizing frame is arranged on the front side of the support rod, a penetrator is arranged on the front inner wall of the stabilizing frame, a driving hammer is arranged on the upper part of the penetrator, a supporting mechanism is arranged on the upper part of the support seat, the supporting mechanism comprises a supporting assembly and an auxiliary assembly, the supporting assembly comprises a fixed shell, the fixed shell is fixedly connected to the upper part of the support seat, a limiting groove is formed in the upper part of the fixed shell, an extension plate is slidably connected to the inner wall of the fixed shell, a limiting piece is slidably connected to the inner wall of the extension plate close to the lower part of the limiting groove, the limiting piece is clamped to the inner wall of the limiting groove, the limiting piece and the extension plate are elastically connected through a compression spring, a support plate is fixedly connected to the outer side of the extension plate, and the lower part of the support plate contacts the outer side of the support seat.

[0006] As a further description of the above technical scheme:

[0007] The auxiliary assembly comprises a fixing piece, the fixing piece is fixedly connected to the outer side of the fixed shell, an auxiliary plate is arranged on the outer side of the fixed shell, the auxiliary plate is fixedly connected to the upper outer side of the support plate, a stabilizing groove is formed in the outer side of the auxiliary plate, and the fixing piece slides in the inner wall of the stabilizing groove.

[0008] As a further description of the above technical scheme:

[0009] The upper part of the limiting member is provided as a flat cover.

[0010] As a further description of the above technical solution:

[0011] The cross-section of the support plate is provided in an L shape.

[0012] As a further description of the above technical solution:

[0013] The limiting groove is opened in a "work" shape.

[0014] As a further description of the above technical solution:

[0015] A fixing component is provided on the inner wall of the support plate. The fixing component includes a moving plate, the moving plate is slidably connected to the inner wall of the support plate, a fixing column is fixedly connected to the lower part of the moving plate, and a threaded rod is provided on the inner walls of the support plate and the extension plate.

[0016] As a further description of the above technical solution:

[0017] The fixing component further includes a damping nut. The damping nut is fixedly connected to the upper inner wall of the support plate. The threaded rod is threadedly connected to the inner wall of the damping nut. The lower part of the threaded rod is rotatably connected to the inner wall of the moving plate. A crank is fixedly connected to the upper part of the threaded rod.

[0018] As a further description of the above technical solution:

[0019] The lower part of the fixing column is provided in a conical shape.

[0020] The present utility model has the following beneficial effects:

[0021] 1. In the present utility model, the fixing shell is fixed on the support base, and the extension plate cooperates with the fixing shell through the limiting member and the compression spring, which can drive the support plate to extend out, so that the instrument can be placed more stably on the ground during operation, reducing shaking and offset. The fixing member of the auxiliary component slides in the stable groove to further assist in supporting, ensuring that the instrument remains stable during the test and improving the accuracy of the test data.

[0022] 2. In the present utility model, by rotating the crank to drive the threaded rod to rotate, the moving plate will move up and down on the inner wall of the support plate as the threaded rod rotates. The lower part of the fixing column is conical, which is convenient for inserting into the ground to further fix the instrument. At the same time, the insertion depth of the fixing column can be adjusted according to different ground conditions, enhancing the applicability of the instrument in different sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0024] Figure 2 This is a three-dimensional structural diagram showing the disassembled support component and support base in this utility model;

[0025] Figure 3 This is a three-dimensional structural diagram of the disassembled support component in this utility model;

[0026] Figure 4 This is a three-dimensional structural diagram of the limiting component and the compression spring in this utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the movable plate and the fixed column in this utility model.

[0028] Legend:

[0029] 1. Support base; 2. Support rod; 3. Through hammer; 4. Stabilizer; 5. Penetrator; 6. Support assembly; 61. Fixed shell; 62. Limiting groove; 63. Extension plate; 64. Limiting component; 65. Compression spring; 66. Support plate; 7. Auxiliary assembly; 71. Fixing component; 72. Auxiliary plate; 73. Stabilizer groove; 8. Fixed assembly; 81. Moving plate; 82. Fixed column; 83. Threaded rod; 84. Damping nut; 85. Handle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 - Figure 3This utility model provides an embodiment of a high-stability standard penetrator, including a support base 1 for supporting a support rod 2, and a winding device at the rear, consisting of a motor winding drum and a cable, for driving the mandrel 3 upward. This technology is prior art and will not be described in detail. The support rod 2 is fixedly connected to the upper part of the support base 1, and is configured as two sections that can be folded. A support member is provided at the top, and rollers are provided on the inner side. This technology is prior art and will not be described in detail. A stabilizing frame 4 is provided at the front side of the support rod 2 for supporting the penetrator. 5. The penetrometer 5 is perpendicular to the ground. The penetrometer 5 is installed on the inner wall of the front part of the stabilizing frame 4. It is a component that directly contacts the soil layer and performs the penetration operation. Under the impact force of the mandrel 3, the penetrometer 5 is driven into the soil. The engineering properties of the soil are determined by measuring the number of hammer blows required to penetrate to a certain depth. The mandrel 3 is installed on the upper part of the penetrometer 5. The mandrel 3 of a certain mass falls freely from a specified distance to generate impact force and drive the penetrometer 5 into the soil. The upper part of the support base 1 is equipped with a support mechanism, which includes a support component 6 and an auxiliary component 7.

[0032] Reference Figure 2 - Figure 4 The support assembly 6 includes a fixed shell 61 for fixing the support extension plate 63. The fixed shell 61 is fixedly connected to the upper part of the support base 1. A limiting groove 62 is formed through the upper part of the fixed shell 61. The limiting groove 62 is "I" shaped and cooperates with the limiting member 64 to limit the range of movement of the extension plate 63, so that it can only slide in a specific direction, ensuring the stable extension and retraction of the support plate 66. The extension plate 63 is slidably connected to the inner wall of the fixed shell 61, and can extend outward as needed, driving the support plate 66 to expand the support range and enhance the stability of the instrument. The limiting member 64 is slidably connected to the inner wall of the extension plate 63 near the lower part of the limiting groove 62. The limiting member 64 cooperates with the limiting groove 62 to limit the extension plate 63 and prevent it from sliding excessively. At the same time, under the action of the compression spring 65, it can adapt to different support requirements and maintain the stability of the support plate 66.

[0033] Reference Figure 3 and Figure 4 The upper part of the limiting member 64 is set as a flat cover, which makes it convenient for the operator to step on or press the limiting member 64 to disengage it from the limiting groove 62. The upper part of the limiting member 64 is engaged with the inner wall of the limiting groove 62. The limiting member 64 and the extension plate 63 are elastically connected by a compression spring 65, which provides an upward elastic force to the limiting member 64, so that the limiting member 64 is always engaged with the inner wall of the limiting groove 62. A support plate 66 is fixedly connected to the outside of the extension plate 63. The support plate 66 expands the support area, increases the contact area between the instrument and the ground, and improves the stability of the instrument during operation. The lower part of the support plate 66 contacts the outside of the support base 1. The cross-section of the support plate 66 is set in an L shape to reduce the space occupied during storage.

[0034] Furthermore, the auxiliary component 7 includes a fixing member 71, which is fixedly connected to the outside of the fixed shell 61 and serves as a guide for the auxiliary plate 72. The auxiliary plate 72 is provided on the outside of the fixed shell 61 and is located on the front and rear sides of the fixed shell 61, which enhances the structural strength of the support plate 66 and the extension plate 63. At the same time, the stability of the instrument is further improved through the cooperation of the stabilizing groove 73 and the fixing member 71. The auxiliary plate 72 is fixedly connected to the upper outer side of the support plate 66, and the stabilizing groove 73 is provided through the outer side of the auxiliary plate 72. The fixing member 71 slides on the inner wall of the stabilizing groove 73.

[0035] Reference Figure 2 , Figure 3 and Figure 5 The inner wall of the support plate 66 is provided with a fixing component 8, which includes a movable plate 81. The movable plate 81 is slidably connected to the inner wall of the support plate 66. The movable plate 81 moves up and down under the drive of the threaded rod 83, thereby controlling the lifting and lowering of the fixed column 82. The lower part of the movable plate 81 is fixedly connected to the fixed column 82. The lower part of the fixed column 82 is set in a conical shape to facilitate insertion into the ground. By adjusting the insertion depth of the fixed column 82, the instrument can be more firmly fixed on the ground, enhancing the applicability of the instrument in different sites, especially on soft or uneven ground. The inner walls of the support plate 66 and the extension plate 63 are provided with threaded rods 83. When the crank handle 85 is turned, the threaded rods 83 rotate, driving the movable plate 81 to move up and down, thereby realizing the lifting and lowering adjustment of the fixed column 82.

[0036] Furthermore, the fixing component 8 also includes a damping nut 84, which is fixedly connected to the upper inner wall of the support plate 66. The threaded rod 83 is threadedly connected to the inner wall of the damping nut 84. The damping nut 84 can provide a certain resistance, making the rotation of the threaded rod 83 more stable, facilitating precise adjustment of the position of the fixing column 82, and preventing the fixing column 82 from moving on its own due to vibration or other reasons. The lower part of the threaded rod 83 is rotatably connected to the inner wall of the moving plate 81, and the upper part of the threaded rod 83 is fixedly connected to a crank 85, which makes it convenient for the operator to rotate the threaded rod 83.

[0037] Working principle: When in use, the operator steps on or presses the limiting piece 64 to disengage it from the limiting groove 62. By pushing the limiting piece 64, the extension plate 63 slides along the inner wall of the fixed shell 61, causing the support plate 66 to extend outward and expand the support range. At this time, when the limiting piece 64 is released, under the action of the compression spring 65, the limiting piece 64 is engaged in the limiting groove 62 to ensure the stability of the support plate 66.

[0038] Meanwhile, the stabilizing groove 73 on the auxiliary plate 72 slides on the outside of the fixing member 71. Since the auxiliary plate 72 slides against the outside of the fixing shell 61, the stability of the instrument is further enhanced, ensuring that the instrument is placed firmly on the ground before testing.

[0039] If the test site is soft or uneven, turn the crank handle 85. The crank handle 85 drives the threaded rod 83 to rotate. The rotation of the threaded rod 83 causes the moving plate 81 to move up and down on the inner wall of the support plate 66. The fixed column 82, which is fixedly connected to the lower part of the moving plate 81, rises and falls accordingly. Insert the conical fixed column 82 into the ground. Adjust the insertion depth of the fixed column 82 according to the actual ground conditions to enhance the stability and applicability of the instrument in different sites and ensure that the test is carried out smoothly.

[0040] At this time, the existing technology of the winding device consisting of a motor, a winding drum and a cable on the back of the support base 1 is started. The cable drives the mandrel 3 to rise to the specified drop distance. After reaching the set height, the mandrel 3 falls freely and generates an impact force on the penetrometer 5. Under the support and guidance of the stabilizer 4, the penetrometer 5 is driven into the soil perpendicular to the ground. By recording the number of hammer blows required to penetrate to a certain depth, the engineering properties of the soil are determined.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-stability standard penetrator, comprising a support base (1), characterized in that: The upper part of the support base (1) is fixedly connected with a support rod (2). A stabilizer (4) is arranged on the front side of the support rod (2). A penetrator (5) is arranged on the inner wall of the front part of the stabilizer (4). A drop hammer (3) is arranged on the upper part of the penetrator (5). A support mechanism is arranged on the upper part of the support base (1), and the support mechanism includes a support component (6) and an auxiliary component (7). The support component (6) includes a fixed shell (61). The fixed shell (61) is fixedly connected to the upper part of the support base (1). A limiting groove (62) is formed through the upper part of the fixed shell (61). An extension plate (63) is slidably connected to the inner wall of the fixed shell (61). A limiting member (64) is slidably connected to the inner wall of the extension plate (63) near the lower part of the limiting groove (62). The upper part of the limiting member (64) is clamped to the inner wall of the limiting groove (62). The limiting member (64) and the extension plate (63) are elastically connected by a compression spring (65). A support plate (66) is fixedly connected to the outside of the extension plate (63). The lower part of the support plate (66) contacts the outside of the support base (1).

2. The high-stability standard penetrator according to claim 1, characterized in that: The auxiliary component (7) includes a fixing member (71). The fixing member (71) is fixedly connected to the outside of the fixed shell (61). An auxiliary plate (72) is arranged on the outside of the fixed shell (61). The auxiliary plate (72) is fixedly connected to the outer side of the upper part of the support plate (66). A stabilizing groove (73) is formed through the outside of the auxiliary plate (72). The fixing member (71) slides on the inner wall of the stabilizing groove (73).

3. The high-stability standard penetrator according to claim 1, characterized in that: The upper part of the limiting member (64) is set as a flat cover.

4. The high-stability standard penetrator according to claim 1, characterized in that: The cross section of the support plate (66) is set as an L shape.

5. A high-stability standard penetrator according to claim 1, characterized in that: The limiting groove (62) is formed as a "work" shape.

6. The high-stability standard penetrator according to claim 1, characterized in that: A fixing component (8) is arranged on the inner wall of the support plate (66). The fixing component (8) includes a moving plate (81). The moving plate (81) is slidably connected to the inner wall of the support plate (66). A fixing column (82) is fixedly connected to the lower part of the moving plate (81). A threaded rod (83) is arranged on the inner walls of the support plate (66) and the extension plate (63).

7. A high-stability standard penetrator according to claim 6, characterized in that: The fixing component (8) further includes a damping nut (84). The damping nut (84) is fixedly connected to the inner wall of the upper part of the support plate (66). The threaded rod (83) is threadedly connected to the inner wall of the damping nut (84). The lower part of the threaded rod (83) is rotatably connected to the inner wall of the moving plate (81). A crank (85) is fixedly connected to the upper part of the threaded rod (83).

8. A high-stability standard penetrator according to claim 6, characterized in that: The lower part of the fixing column (82) is set as a conical shape.

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