Soil engineering compaction device

Abstract

The utility model relates to the technical field of soil engineering compaction detection, and aims to solve the problems that an existing compaction device needs to manually and repeatedly add soil samples in each layer, so that potential safety hazards exist, and the soil samples in a compaction barrel are easily unevenly added and are brought out and scattered. The utility model provides a soil engineering compaction device which comprises a lifting hammer body and a testing cylinder and further comprises a sliding hopper body and a plurality of feeding mechanisms. The sliding hopper body is connected to one end, close to the lifting hammer body, of the testing cylinder; the lifting hammer body penetrates from the wide opening end of the material sliding hopper body and extends towards the inner cavity of the testing cylinder; the discharging end of the feeding mechanism is connected to the wide-opening end of the material sliding hopper body. The end, away from the material sliding hopper body, of the feeding mechanism communicates with a material storage assembly. According to the soil engineering compaction device provided by the utility model, soil samples do not need to be manually added for multiple times, the safety is high, the soil samples are uniformly added, and the soil samples are not easy to take out and scatter.

Description

Technical Field

[0001] This utility model relates to the field of soil compaction testing technology, and more specifically, to a soil compaction device. Background Technology

[0002] Geotechnical compaction simulation testing devices are mainly used to determine the maximum dry density and optimum moisture content of soil, providing a basis for quality control in engineering backfilling and other applications. In existing technologies, manual compactors (requiring manual operation of the hammer, suitable for light or heavy compaction tests) or electric compactors are typically used for compaction simulation testing. For example, the geotechnical compactor disclosed in patent CN211453196U specifically uses a lifting motor to drive the compaction hammer downwards to conduct a compaction simulation test on the soil surface inside the compaction cylinder. However, using this device requires manual and repeated addition of soil samples to each layer, which not only poses safety hazards but also easily leads to uneven soil sample addition in the compaction cylinder and the problem of soil sample being carried out and spilled during the reciprocating motion of the compaction hammer.

[0003] Based on the above description, there is an urgent need for a soil compaction device that can automatically and uniformly add soil samples multiple times. Utility Model Content

[0004] The purpose of this utility model is to provide a soil compaction device, which aims to solve the technical problem that existing compaction devices require manual repeated addition of soil samples to each layer, which not only poses safety hazards, but also easily leads to uneven addition of soil samples in the compaction cylinder and soil samples being carried out and spilled.

[0005] The embodiments of this utility model are achieved through the following technical solutions:

[0006] A soil compaction device includes a lifting hammer and a test cylinder, as well as a chute and multiple feeding mechanisms; the chute is connected to one end of the test cylinder near the lifting hammer; the lifting hammer enters from the wide end of the chute and extends into the inner cavity of the test cylinder; the discharge end of the feeding mechanism is connected to the wide end of the chute; and a storage component is connected to one end of the feeding mechanism away from the chute.

[0007] Preferably, the feeding mechanism includes a screw feeder and a guiding assembly; the screw feeder is connected to the wide end of the chute body through the guiding assembly.

[0008] Preferably, the material guiding assembly includes a buffer box and a material guiding ramp; one end of the buffer box is connected to the screw feeder; the other end of the buffer box is connected to the wide end of the chute body through the material guiding ramp.

[0009] Preferably, the guide ramp extends from high to low towards the wide end opening of the hopper body.

[0010] Preferably, a first baffle plate is erected at both ends of the guide slope plate.

[0011] Preferably, the wide end ring of the hopper body is provided with a second baffle plate that is connected to the first baffle plate.

[0012] Preferably, the storage assembly includes a storage hopper and multiple mounting legs; the storage hopper is connected to the end of the feeding mechanism away from the chute; and the storage hopper is circumferentially provided with multiple mounting legs.

[0013] Preferably, a vibrator is provided outside the test cylinder.

[0014] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0015] This invention adds a wide-mouthed chute to the feed end of the test cylinder, allowing soil samples to be automatically and evenly fed into the chute by multiple feeding mechanisms and then flow into the test cylinder. This facilitates reciprocating compaction testing using a lifting hammer with an existing structure. The lifting hammer must pass through the chute before entering the test cylinder. The wide end of the chute is the feed end, and the narrow end is connected to the test cylinder. This design also prevents the soil sample from being carried out of the test cylinder by the lifting hammer during the reciprocating compaction process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 for Figure 1 An enlarged schematic diagram of local structure A in the middle.

[0018] Icons: 1-Lifting hammer, 2-Test cylinder, 3-Cloister, 4-Feeding mechanism, 41-Screw feeder, 42-Guide assembly, 421-Buffer box, 422-Guide ramp, 5-Storage assembly, 51-Storage hopper, 52-Mounting legs, 6-First baffle, 7-Second baffle, 8-Vibrator. Detailed Implementation

[0019] The specific implementation method is described below with reference to the accompanying drawings.

[0020] Example 1

[0021] Please see Figures 1 to 2 The present invention provides the following technical solution: a soil compaction device, which is suitable for the situation of compaction simulation test after multiple soil additions.

[0022] Specifically, such as Figure 1 and Figure 2As shown, a soil compaction device includes a lifting hammer body 1 and a test cylinder 2, as well as a chute body 3 and multiple feeding mechanisms 4; the chute body 3 is connected to the end of the test cylinder 2 near the lifting hammer body 1; the lifting hammer body 1 enters from the wide end of the chute body 3 and extends into the inner cavity of the test cylinder 2; the discharge end of the feeding mechanism 4 is connected to the wide end of the chute body 3; the end of the feeding mechanism 4 away from the chute body 3 is connected to a storage component 5.

[0023] In this embodiment, a wide-mouthed chute 3 is added to the feed end of the test cylinder 2. This allows multiple feeding mechanisms 4 to automatically and evenly add soil samples into the chute 3, which then flows into the interior of the test cylinder 2. This facilitates reciprocating compaction testing using the existing lifting hammer 1. The lifting hammer 1 must pass through the chute 3 before entering the interior of the test cylinder 2. The wide end of the chute 3 is the feed end, and the narrow end is connected to the test cylinder 2. This also prevents the soil sample in the test cylinder 2 from being carried out by the lifting hammer 1 during the reciprocating compaction process. Furthermore, the multiple feeding mechanisms 4 are equidistantly spaced at the wide end of the chute 3, further improving the uniformity of the automatic soil sample addition.

[0024] In this embodiment, the feeding mechanism 4 is controlled by a PLC controller or a microcontroller to achieve automated feeding.

[0025] Specifically, such as Figure 1 and Figure 2 As shown, the feeding mechanism 4 includes a screw feeder 41 and a guide assembly 42; the screw feeder 41 is connected to the wide end of the hopper body 3 through the guide assembly 42.

[0026] In this embodiment, the screw feeder 41 can be installed horizontally at the wide end of the chute 3, or it can be installed at an incline at the wide end of the chute 3 to facilitate rapid feeding; wherein, the material guiding component 42 plays a guiding role to accurately feed the soil sample into the chute 3.

[0027] Specifically, such as Figure 2 As shown, the material guiding assembly 42 includes a buffer box 421 and a material guiding ramp 422; one end of the buffer box 421 is connected to the screw feeder 41; the other end of the buffer box 421 is connected to the wide end of the chute body 3 through the material guiding ramp 422.

[0028] In this embodiment, the bottom wall of the buffer box 421 is preferably an inclined wall with the same inclination direction as the guide slope 422, which further improves the feeding efficiency.

[0029] Specifically, such as Figure 2As shown, the guide ramp 422 extends from high to low towards the wide end opening of the hopper body 3. First baffle plates 6 are erected on both sides of the guide ramp 422. A second baffle plate 7, connected to the first baffle plate 6, is circumferentially arranged around the wide end of the hopper body 3.

[0030] In this embodiment, multiple first baffle plates 6 and multiple second baffle plates 7 together form an enclosing structure on the top of the hopper body 3 to prevent material from spilling during feeding.

[0031] Specifically, such as Figure 1 As shown, the storage assembly 5 includes a storage hopper 51 and multiple mounting legs 52; the storage hopper 51 is connected to the end of the feeding mechanism 4 away from the chute 3; the storage hopper 51 is surrounded by multiple mounting legs 52. A vibrator 8 is provided outside the test cylinder 2.

[0032] In this embodiment, multiple mounting legs 52 are arranged around the outside of the storage hopper 51 to support the storage hopper 51. The storage hopper 51 can not only facilitate rapid material feeding, but also pre-store the soil sample to be tested, providing sufficient soil sample for automatic soil feeding. By providing a vibrator 8 outside the test cylinder 2, the material feeding speed of the chute 3 can be increased, and the uniformity of the soil sample inside the test cylinder 2 can be improved when the lifting hammer 1 performs reciprocating compaction testing, further improving the efficiency of compaction testing.

Claims

1. A soil compaction device, comprising a lifting hammer (1) and a testing cylinder (2), characterized in that: It also includes a hopper body (3) and multiple feeding mechanisms (4); the hopper body (3) is connected to one end of the test cylinder (2) near the lifting hammer body (1); the lifting hammer body (1) enters from the wide end of the hopper body (3) and extends into the inner cavity of the test cylinder (2); the discharge end of the feeding mechanism (4) is connected to the wide end of the hopper body (3); the end of the feeding mechanism (4) away from the hopper body (3) is connected to a storage component (5).

2. The soil compaction device according to claim 1, characterized in that: The feeding mechanism (4) includes a screw feeder (41) and a guide assembly (42); the screw feeder (41) is connected to the wide end of the chute (3) through the guide assembly (42).

3. The soil compaction device according to claim 2, characterized in that: The material guiding assembly (42) includes a buffer box (421) and a guide ramp (422); one end of the buffer box (421) is connected to the screw feeder (41); the other end of the buffer box (421) is connected to the wide end of the chute (3) through the guide ramp (422).

4. The soil compaction device according to claim 3, characterized in that: The guide ramp (422) extends from high to low towards the wide end opening of the chute (3).

5. The soil compaction device according to claim 4, characterized in that: The guide slope (422) is provided with a first baffle plate (6) at both ends.

6. The soil compaction device according to claim 5, characterized in that: The wide end ring of the hopper body (3) is provided with a second baffle plate (7) that is connected to the first baffle plate (6).

7. The soil compaction device according to any one of claims 1 to 6, characterized in that: The storage assembly (5) includes a storage hopper (51) and multiple mounting legs (52); the storage hopper (51) is connected to the end of the feeding mechanism (4) away from the chute (3); the storage hopper (51) is surrounded by multiple mounting legs (52).

8. The soil compaction device according to any one of claims 1 to 6, characterized in that: The test cylinder (2) is equipped with a vibrator (8).

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