Safety auxiliary device of heavy dynamic penetrometer

Abstract

The utility model relates to a safety auxiliary device of a heavy-duty dynamic penetrometer, and belongs to the field of heavy-duty dynamic penetrometers, the safety auxiliary device comprises an auxiliary frame and a guide plate, the auxiliary frame is used for being inserted and fixed around the ground to be measured, and the guide plate is horizontally and fixedly mounted at the upper end of the auxiliary frame; a guide hole is formed in the middle of the guide plate in the vertical direction and used for allowing a feeler lever to be movably connected in an inserted mode. The heavy-duty dynamic sounding device has the advantages that the safety of heavy-duty dynamic sounding operation is improved, and meanwhile the labor intensity of operators is reduced.

Description

Technical Field

[0001] This application relates to the field of heavy-duty powered penetrometers, and more particularly to a safety auxiliary device for a heavy-duty powered penetrometer. Background Technology

[0002] A dynamic cone penetrometer (VCP) is a device used to test the bearing capacity of foundation soil. Its working principle involves using a certain amount of hammer kinetic energy to perform an engineering geological evaluation of the foundation soil. VCPs are classified into light-duty and heavy-duty VCPs based on the bearing capacity they test.

[0003] Lightweight dynamic penetrometers (MPPs) utilize a lighter hammer weight and drop height for testing, typically with a hammer weight of 10 kg and a drop height of 500 mm. This instrument is easy to operate and suitable for testing softer foundation soils. Heavyweight MPPs, on the other hand, are used to test harder foundation soils. Their testing equipment mainly consists of three parts: a probe, a penetrometer rod, and a core hammer. The penetrometer rod is generally a straight rod with segmented threaded connections, and the core hammer typically weighs 63.5 kg. During testing, heavyweight MPPs can provide greater hammer impact energy, thus more accurately assessing the bearing capacity of the foundation.

[0004] Currently, when conducting heavy-duty dynamic penetrometer tests, multiple people are required on-site to maintain the stability of the penetrometer rod. Due to the high center of gravity of the falling hammer, it is easy to cause personal injury to the workers, and the labor intensity of the workers is high. Therefore, improvements are needed. Utility Model Content

[0005] In order to improve the safety of heavy-duty power penetrometer operations and reduce the labor intensity of operators, this application provides a safety auxiliary device for heavy-duty power penetrometers.

[0006] The safety auxiliary device for a heavy-duty power penetrometer provided in this application adopts the following technical solution: A safety auxiliary device for a heavy-duty power penetrometer includes an auxiliary frame and a guide plate. The auxiliary frame is used to be inserted and fixed around the ground to be measured. The guide plate is horizontally installed on the upper end of the auxiliary frame. A guide hole is opened in the middle of the guide plate along the vertical direction. The guide hole is used for the movable insertion of the penetrometer rod.

[0007] By adopting the above technical solution, the auxiliary frame is inserted and fixed around the ground to be measured. Then, the upper end of the probe rod is inserted into the guide plate through the guide hole for vertical positioning, while the lower end of the probe rod touches the ground to be measured. Then, the operator lifts the penetrating hammer along the probe rod and lets it fall freely for testing. This reduces the operator's need to fix the probe rod, while keeping the probe rod vertical, thus improving the accuracy and safety of the test.

[0008] Preferably, the auxiliary frame includes at least three support rods, the upper ends of which are connected to the edge of the guide plate.

[0009] By adopting the above technical solution, the guide plate is fixed to the ground to be tested by multiple support rods of the auxiliary frame, thereby improving the stability of the guide plate and thus improving the stability of the probe rod.

[0010] Preferably, the lower surface edge of the guide plate is provided with a plurality of mounting ears along the circumferential direction, and the upper end of the support rod is hinged to the guide plate through the mounting ears.

[0011] By adopting the above technical solution, the guide plate is hinged to the support rod through the mounting ears. After use, the support rod can be folded up, which makes it easy to carry the auxiliary device.

[0012] Preferably, the lower end of the support rod is pointed.

[0013] By adopting the above technical solution, the support rod with the tip is easy to insert and fix on the ground.

[0014] Preferably, a foot pedal is vertically provided on the lower side of the support rod.

[0015] By adopting the above technical solution, the step bar installed on the lower side of the support rod facilitates the insertion and fixing of the support rod to the ground. At the same time, during operation, the operator can use the step bar to help stabilize the auxiliary frame, thereby further improving the stability of the auxiliary frame.

[0016] Preferably, a bubble level is provided on the guide plate.

[0017] By adopting the above technical solution, by setting a bubble level on the guide plate and controlling the depth of multiple support rods inserted into the ground by stepping on the rod, the levelness of the guide plate is controlled, thereby ensuring the verticality of the probe rod installed on the guide plate.

[0018] Preferably, two bubble levels are provided, and the two bubble levels are arranged perpendicularly to each other on the lower surface of the guide plate.

[0019] By adopting the above technical solution, two mutually perpendicular bubble levels can further improve the levelness of the guide plate.

[0020] Preferably, the lower surface edge of the guide plate is provided with a plurality of mounting ears along the circumferential direction, the upper end of the support rod is hinged to the guide plate through the mounting ears, the side wall of the support rod is provided with a through mounting hole, the pedal rod is movably inserted into the mounting hole, and the two ends of the pedal rod are provided with limiting blocks to prevent the pedal rod from disengaging from the mounting hole, so that the pedal rod can be in the pedaling position or in the support position of the probe rod.

[0021] By adopting the above technical solution, the foot pedal is movably inserted into the mounting hole. When the auxiliary frame needs to be used, the foot pedal can be moved to one end, so that the foot pedal is in the stepping position, thereby assisting in inserting the support rod into the ground. After the auxiliary frame operation is completed, the foot pedal is moved to the other end, and the support rod is rotated and retracted at the same time, so that the end of the foot pedal can support the probe rod, thereby facilitating the overall carrying.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Insert and fix the auxiliary frame around the ground to be measured. Then, insert the upper end of the probe rod into the guide plate through the guide hole for vertical positioning. At the same time, the lower end of the probe rod touches the ground to be measured. Then, the operator lifts the penetrating hammer along the probe rod and lets it fall freely for testing. This reduces the operator's need to fix the probe rod and keeps the probe rod vertical, improving the accuracy and safety of the test.

[0024] 2. The foot pedal is movably inserted into the mounting hole. When the auxiliary frame needs to be used, the foot pedal can be moved to one end, so that the foot pedal is in the stepping position, thereby assisting in inserting the support rod into the ground. After the auxiliary frame is operated, the foot pedal is moved to the other end, and the support rod is rotated and retracted at the same time, so that the end of the foot pedal can support the probe rod, thereby facilitating the overall carrying. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the installation structure of the safety auxiliary device and the heavy-duty power penetrometer in the embodiments of this application.

[0026] Figure 2 This is a structural schematic diagram of the installation of the safety auxiliary device and the heavy-duty power penetrometer in the embodiments of this application from another perspective.

[0027] Figure 3 This is a schematic diagram of the auxiliary frame after it is folded up in the embodiment of this application.

[0028] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0029] Explanation of reference numerals in the attached drawings: 11. Probe; 12. Penetrating rod; 13. Through hammer; 14. Support column; 2. Auxiliary frame; 21. Support rod; 211. Mounting hole; 3. Guide plate; 31. Guide hole; 32. Mounting ear; 4. Bubble level; 5. Step bar; 51. Limit block. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0031] This application discloses a safety auxiliary device for a heavy-duty powered penetrometer. (Refer to...) Figure 1 The heavy-duty dynamic penetrometer of this application includes a probe 11, a penetrometer rod 12, and a mandrel 13. The probe 11 is fixedly mounted on the lower end of the penetrometer rod 12, and the mandrel 13 passes through the penetrometer rod 12. A support column 14 with a diameter larger than that of the penetrometer rod 12 is fixedly mounted on the end of the tactile rod near the probe 11. The safety auxiliary device includes an auxiliary frame 2 and a guide plate 3. The auxiliary frame 2 is used to insert and fix itself around the ground to be measured. The guide plate 3 is horizontally mounted on the upper end of the auxiliary frame 2. A guide hole 31 is opened vertically in the middle of the guide plate 3 for the penetrometer rod 12 to be inserted and moved. The guide plate 3 in this application is a circular plate with a thickness of about 2 cm.

[0032] Before the heavy-duty power penetrometer is used for measurement, the auxiliary frame 2 is first inserted and fixed around the ground to be measured. Then, the upper end of the penetrometer rod 12 is inserted into the guide plate 3 through the guide hole 31 for vertical positioning. At the same time, the probe 11 at the lower end of the penetrometer rod 12 touches the ground to be measured. Then, the operator lifts the penetrometer hammer 13 along the penetrometer rod 12 and lets it fall freely for detection. This reduces the need for the operator to fix the penetrometer rod 12 and keeps the penetrometer rod 12 vertical, improving the accuracy and safety of the detection.

[0033] Specifically, the auxiliary frame 2 includes at least three support rods 21, the upper ends of which are connected to the edge of the guide plate 3. The auxiliary frame 2 in this application includes three support rods 21, which are evenly distributed along the circumference of the guide plate 3. The guide plate 3 is fixed to the ground to be measured by the three support rods 21 of the auxiliary frame 2, thereby improving the stability of the guide plate 3 and consequently improving the stability of the probe 12.

[0034] Furthermore, the lower surface edge of the guide plate 3 is provided with multiple mounting ears 32 along the circumferential direction, and the upper end of the support rod 21 is hinged to the guide plate 3 via the mounting ears 32. The guide plate 3 is hinged to the support rod 21 via the mounting ears 32, and after use, the support rod 21 can be folded up, thereby facilitating the carrying of the auxiliary device.

[0035] The support rod 21 in this application has a pointed lower end. The pointed support rod 21 is easy to insert and fix to the ground.

[0036] Furthermore, to facilitate the insertion of the support rod 21 into the ground, a foot pedal 5 is vertically welded and fixed to the lower side of the support rod 21. Simultaneously, during operation, the operator can assist in maintaining the stability of the auxiliary frame 2 by stepping on the foot pedal 5, thereby further improving the stability of the auxiliary frame 2.

[0037] Reference Figure 2Furthermore, a bubble level 4 is provided on the guide plate 3. In this application, two bubble levels 4 are provided, and the two bubble levels 4 are perpendicularly arranged on the lower surface of the guide plate 3. By providing the bubble level 4 on the guide plate 3, and controlling the depth of insertion of the multiple support rods 21 into the ground by using the step rod 5, the levelness of the guide plate 3 is controlled, thereby ensuring the verticality of the probe rod 12 installed on the guide plate 3.

[0038] Reference Figure 3 and Figure 4 In other embodiments, a through mounting hole 211 is provided on the side wall of the support rod 21. The foot pedal 5 is movably inserted into the mounting hole 211. Limiting blocks 51 are provided on the lower sides of both ends of the foot pedal 5 to prevent the foot pedal 5 from disengaging from the mounting hole 211, thereby allowing the foot pedal 5 to move to either the footing position or the position of the support column 14 supporting the probe rod 12. The foot pedal 5 is movably inserted into the mounting hole 211. When the auxiliary frame 2 needs to be used, the foot pedal 5 can be moved to one end, placing the foot pedal 5 in the footing position, thereby assisting in inserting the support rod 21 into the ground. After the auxiliary frame 2 is completed, the foot pedal 5 is moved to the other end, and the support rod 21 is rotated and retracted, so that the end of the foot pedal 5 can support the probe rod 12, thereby facilitating overall carrying.

[0039] The implementation principle of a safety auxiliary device for a heavy-duty power penetrometer in this application embodiment is as follows: Before the heavy-duty power penetrometer is measured, the auxiliary frame 2 is first inserted and fixed around the ground to be measured. Then, the upper end of the penetrometer rod 12 is inserted into the guide plate 3 through the guide hole 31 for vertical positioning. At the same time, the probe 11 at the lower end of the penetrometer rod 12 touches the ground to be measured. Then, the operator lifts the penetrometer hammer 13 along the penetrometer rod 12 and lets it fall freely for detection. This reduces the need for the operator to fix the penetrometer rod 12 and keeps the penetrometer rod 12 vertical, improving the accuracy and safety of the detection.

[0040] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," "third," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar terms mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. "Above," "below," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0041] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A safety auxiliary device for a heavy-duty power penetrometer, characterized in that: The device includes an auxiliary frame (2) and a guide plate (3). The auxiliary frame (2) is used to insert and fix around the ground to be measured. The guide plate (3) is horizontally installed on the upper end of the auxiliary frame (2). A guide hole (31) is opened vertically in the middle of the guide plate (3). The guide hole (31) is used for the movable insertion of the probe rod (12). The auxiliary frame (2) includes at least three support rods (21). The upper end of the support rod (21) is connected to the edge of the guide plate (3). The lower end of the support rod (21) is set with a pointed end. A foot pedal (5) is vertically arranged on the lower side of the support rod (21). A bubble level (4) is provided on the guide plate (3). Multiple mounting ears (32) are provided along the circumferential direction on the lower surface edge of the guide plate (3). The upper end of the support rod (21) is hinged to the guide plate (3) through the mounting ears (32). A through mounting hole (211) is provided on the side wall of the support rod (21). The stepping rod (5) is movably inserted into the mounting hole (211). Limiting blocks (51) are provided at both ends of the stepping rod (5) to restrict the stepping rod (5) from leaving the mounting hole (211), so that the stepping rod (5) can be in the stepping position or in the position of supporting the probe rod (12).

2. The safety auxiliary device for the heavy-duty dynamic penetrometer according to claim 1, characterized in that: Two bubble levels (4) are provided, and the two bubble levels (4) are arranged perpendicularly to each other on the lower surface of the guide plate (3).

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