Light penetrometer for municipal construction

Abstract

The utility model discloses a light penetrometer for municipal construction, which relates to the field of municipal construction and comprises a probe rod and a probe head, the probe head is mounted at the bottom end of the probe rod, an adjusting mechanism is mounted at the top of the probe rod and comprises a driving hammer rod, a handle is fixedly mounted at the top of the driving hammer rod, and the handle is fixedly connected with the probe head. A blocking buckle is fixedly installed at the bottom end of the driving hammer rod, the top end of the probe rod is connected to the bottom of the blocking buckle, two sliding grooves are formed in the periphery of the driving hammer rod, a screw rod is movably installed in the driving hammer rod in a penetrating mode, and a limiting disc is movably installed outside the driving hammer rod and penetrates through the sliding grooves to be connected to the periphery of the screw rod in a sleeving mode. The top end of the screw rod is fixedly provided with a knob, and the top end of the probe rod penetrates through the interior of the blocking buckle and is in threaded connection with the blocking buckle; the hammering height of the hammer body is convenient to adjust, the falling height of each time is kept consistent, the detection precision is improved, the weight of the hammer body is convenient to adjust, and detection of different hammering forces is carried out.

Description

Technical Field

[0001] The utility model relates to the field of municipal construction, and particularly relates to a light dynamic penetrometer for municipal construction. Background Technique

[0002] In the construction process of municipal construction such as roads, bridges, tunnels, pipeline laying, etc., the stability of the foundation directly affects the project quality and safety. The light dynamic penetrometer is a non-destructive testing method, which can detect and obtain the physical properties of soil, such as density, compression modulus, shear strength, etc. without destroying the soil structure. This scheme specifically relates to a light dynamic penetrometer for municipal construction;

[0003] When the existing light dynamic penetrometer is in use, due to the different heights required for hammering in different environments and the unequal vertical heights each time, it is not convenient to adjust the height of the hammer body falling, which reduces the detection accuracy. When performing detections of different degrees, it is necessary to replace the hammer body with the corresponding weight, and it is not convenient to adjust the weight of the hammer body. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a light dynamic penetrometer for municipal construction, which can effectively solve the technical problems in the background technique.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A light dynamic penetrometer for municipal construction, comprising a sounding rod and a probe. The probe is installed at the bottom end of the sounding rod, and an adjusting mechanism is installed at the top of the sounding rod. The adjusting mechanism includes a hammer rod. A handle is fixedly installed at the top of the hammer rod, a retaining buckle is fixedly installed at the bottom end of the hammer rod, the top end of the sounding rod is connected to the bottom of the retaining buckle, two sliding grooves are formed in the outer periphery of the hammer rod, a screw rod is movably installed through the inside of the hammer rod, a limiting disk is movably installed outside the screw rod and sleeved through the sliding groove on the outside of the hammer rod, and a knob is fixedly installed at the top end of the screw rod.

[0007] As a further scheme of the utility model, the top end of the sounding rod penetrates through the inside of the retaining buckle and is arranged in a threaded connection, and the screw rod is arranged in a movable rotation inside the hammer rod.

[0008] As a further scheme of the utility model, the diameter of the retaining buckle is larger than the diameter of the hammer rod, and the limiting disk is sleeved on the outside of the hammer rod and is arranged to slide up and down.

[0009] As a further scheme of the utility model, the limiting disk passes through the sliding groove and is connected to the screw rod, and the inside of the limiting disk is sleeved on the periphery of the screw rod and is arranged in a threaded connection.

[0010] As a further solution of the present utility model, a connection component is installed outside the hammer rod. The connection component includes a hammer body and a weight increasing block. The hammer body is sleeved outside the hammer rod. Two lifting rods are fixedly installed outside the hammer body. The weight increasing block is connected to the top of the hammer body. A connection groove is opened at the bottom of the weight increasing block. Connection rings are installed at the tops of both the weight increasing block and the hammer body. A limiting groove is centrally opened through the interior of the weight increasing block.

[0011] As a further solution of the present utility model, the hammer body is sleeved outside the hammer rod and is arranged to slide up and down. The inner diameter of the limiting groove is greater than the outer diameter of the limiting disc.

[0012] As a further solution of the present utility model, threads are provided on both the inner wall of the connection groove and the outer wall of the connection ring, and the connection ring and the connection groove are arranged to be threadedly connected.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By providing an adjusting mechanism, the screw rod drives the limiting disc to slide up and down, changing the distance between the limiting disc and the retaining buckle, facilitating the adjustment of the hammering height of the hammer body. By using the limiting disc, the falling height of the hammer body can be limited, making the falling height the same each time and improving the detection accuracy.

[0015] By providing a connection component, the hammer body slides around the hammer rod. The weight increasing block is installed through the connection between the connection ring and the connection groove, facilitating the adjustment of the weight of the hammer body and the detection of different hammering forces. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a light dynamic cone penetrometer for municipal construction of the present utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the adjusting mechanism in a light dynamic cone penetrometer for municipal construction of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the connection component in a light dynamic cone penetrometer for municipal construction of the present utility model.

[0019] In the figure: 1, sounding rod; 2, probe; 3, adjusting mechanism; 4, connection component; 5, hammer rod; 6, grip; 7, retaining buckle; 8, sliding groove; 9, screw rod; 10, knob; 11, limiting disc; 12, hammer body; 13, lifting rod; 14, weight increasing block; 15, connection groove; 16, limiting groove; 17, connection ring. Detailed Embodiments

[0020] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] As shown Figures 1-3 in the figure, a light sounding instrument for municipal construction includes a sounding rod 1 and a probe 2. The probe 2 is installed at the bottom end of the sounding rod 1, and an adjusting mechanism 3 is installed at the top of the sounding rod 1. The adjusting mechanism 3 includes a hammer rod 5. A grip 6 is fixedly installed at the top of the hammer rod 5, and a retaining buckle 7 is fixedly installed at the bottom end of the hammer rod 5. The top end of the sounding rod 1 is connected to the bottom of the retaining buckle 7. Two sliding grooves 8 are formed in the outer periphery of the hammer rod 5. A screw rod 9 is movably installed through the inside of the hammer rod 5. A limiting disk 11 is movably sleeved on the outer periphery of the screw rod 9 outside the hammer rod 5 and passing through the sliding groove 8. A knob 10 is fixedly installed at the top end of the screw rod 9.

[0022] In this embodiment, the top end of the sounding rod 1 penetrates through the inside of the retaining buckle 7 and is arranged in a threaded connection. The screw rod 9 is rotatably arranged inside the hammer rod 5. Through the threaded connection between the retaining buckle 7 and the sounding rod 1, the sounding rod 1 is disassembled and assembled.

[0023] In this embodiment, the diameter of the retaining buckle 7 is larger than the diameter of the hammer rod 5. The limiting disk 11 is sleeved on the outside of the hammer rod 5 and is arranged to slide up and down. The retaining buckle 7 is used to resist the hammer body 12, and the limiting disk 11 is used to limit the falling height of the hammer strike.

[0024] In this embodiment, the limiting disk 11 passes through the sliding groove 8 and is connected to the screw rod 9. The inside of the limiting disk 11 is sleeved on the outer periphery of the screw rod 9 and is arranged in a threaded connection. By driving the limiting disk 11 to slide up and down through the screw rod 9, the falling distance of the hammer body 12 is adjusted.

[0025] In this embodiment, a connecting component 4 is installed on the outside of the hammer rod 5. The connecting component 4 includes a hammer body 12 and a weight increasing block 14. The hammer body 12 is sleeved on the outside of the hammer rod 5. Two lifting rods 13 are fixedly installed on the outside of the hammer body 12. The weight increasing block 14 is connected to the top of the hammer body 12. A connecting groove 15 is formed at the bottom of the weight increasing block 14. Connecting rings 17 are installed at the tops of both the weight increasing block 14 and the hammer body 12. A limiting groove 16 is formed in the middle of the weight increasing block 14 through the inside. The weight increasing block 14 is fixed to the hammer body 12 through the connection of the connecting ring 17 and the connecting groove 15 to adjust and increase different weights for detection.

[0026] In this embodiment, the hammer body 12 is sleeved on the outside of the hammer rod 5 and is arranged to slide up and down. The inner diameter of the limiting groove 16 is larger than the outer diameter of the limiting disk 11. The hammer body 12 slides on the outside of the hammer rod 5 and slides down under the action of gravity for hammering, so that the probe 2 extends into the soil for detection.

[0027] In this embodiment, threads are provided on both the inner wall of the connecting groove 15 and the outer wall of the connecting ring 17. The connecting ring 17 is threadedly connected to the connecting groove 15. Through the connection between the connecting ring 17 and the connecting groove 15, the corresponding number of weight increasing blocks 14 are installed to adjust the weight of the hammer body 12 for different performance tests.

[0028] It should be noted that the present utility model is a light sounding instrument for municipal construction. When in use, first connect the sounding rod 1 to the hammer rod 5. By the threaded connection between the top of the sounding rod 1 and the retaining buckle 7, the sounding rod 1 is increased or decreased to adjust the detection depth. During the detection, by lifting the hammer body 12 upward, the hammer body 12 freely falls under the action of gravity. When the hammer strikes the retaining buckle 7 and stops, the probe 2 extends downward into the soil to detect the properties of the soil layer. When performing different height detections in different environments, by rotating the knob 10, the screw rod 9 rotates to drive the limit disk 11 to slide up and down, changing the distance between the limit disk 11 and the retaining buckle 7. By making the limit disk 11 slide upward to contact the limit disk 11, the falling distance of the hammer body 12 is made equal each time. When it is necessary to adjust the falling gravity, the weight increasing block 14 is sleeved from the top of the hammer rod 5, the limit disk 11 passes through the limit groove 16, and the weight increasing block 14 is fixed to the hammer body 12 through the connection between the connecting ring 17 and the connecting groove 15. The hammering force is adjusted through the connection of multiple weight increasing blocks 14.

[0029] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A light-duty penetration instrument for municipal construction, comprising a probe rod (1) and a probe head (2), wherein the probe head (2) is mounted at the bottom end of the probe rod (1), and an adjustment mechanism (3) is mounted at the top of the probe rod (1), characterized in that: The adjusting mechanism (3) comprises a hammer rod (5), a handle (6) is fixedly mounted on the top of the hammer rod (5), a stopper (7) is fixedly mounted on the bottom of the hammer rod (5), the top end of the probe rod (1) is connected to the bottom of the stopper (7), two slide grooves (8) are arranged on the periphery of the hammer rod (5), a screw rod (9) is movably mounted inside the hammer rod (5), a limit plate (11) is movably mounted on the outside of the hammer rod (5) and passes through the slide groove (8) and is sleeved on the periphery of the screw rod (9), and a knob (10) is fixedly mounted on the top end of the screw rod (9).

2. A light-duty penetration instrument for municipal construction according to claim 1, characterized in that: The top end of the probe rod (1) penetrates the interior of the stopper (7) and is threadedly connected, and the screw rod (9) is located inside the hammer rod (5) and is movably rotatable.

3. The light-duty penetration instrument for municipal construction according to claim 1, characterized in that: The diameter of the stopper (7) is larger than the diameter of the hammer rod (5), and the limit plate (11) is sleeved on the outside of the hammer rod (5) and is slidably arranged up and down.

4. The light-duty penetration instrument for municipal construction according to claim 1, characterized in that: The limiting plate (11) passes through the slide groove (8) and is connected to the screw rod (9). The interior of the limiting plate (11) is sleeved on the periphery of the screw rod (9) in a threaded connection.

5. The light-duty penetration instrument for municipal construction according to claim 1, characterized in that: A connecting assembly (4) is installed on the outside of the hammer rod (5), and the connecting assembly (4) includes a hammer body (12) and a weight block (14). The hammer body (12) is sleeved on the outside of the hammer rod (5), and two lifting rods (13) are fixedly installed on the outside of the hammer body (12). The weight block (14) is connected to the top of the hammer body (12), and a connecting groove (15) is provided at the bottom of the weight block (14). The tops of the weight block (14) and the hammer body (12) are both installed with connecting rings (17), and a limiting groove (16) is provided in the center of the inside of the weight block (14).

6. A light-duty penetration instrument for municipal construction according to claim 5, characterized in that: The hammer body (12) is sleeved on the outside of the hammer rod (5) and is slidably arranged up and down, and the inner circle diameter of the limiting groove (16) is larger than the outer circle diameter of the limiting plate (11).

7. The light-duty penetration instrument for municipal construction according to claim 5, characterized in that: The inner wall of the connecting groove (15) and the outer wall of the connecting ring (17) are both provided with threads, and the connecting ring (17) and the connecting groove (15) are connected in a threaded manner.

Images