Pit chiseling equipment for detecting compactness of roadbed by sand filling method

Abstract

The utility model relates to the technical field of roadbed compactness detection equipment, in particular to pit digging equipment for roadbed compactness detection by a sand filling method. Comprising a base plate and a digging rod; a pit digging hole is formed in the middle side of the bottom of the base plate, a vertical column is fixedly installed on the base plate, a first cross arm is vertically installed on the vertical column in a sliding mode, a second cross arm is horizontally installed in the first cross arm in a sliding mode, and a digging rod is installed on the second cross arm; the side surface of the digging rod can abut against the inner edge of the pit digging hole. The vertical position and the rotating position of the first cross arm on the vertical column are adjusted, the distance between the second cross arm and the end of the first cross arm is adjusted, so that the digging rod digs sandy soil on the inner side of the pit digging hole, the digging rod is kept in the vertical state all the time, and the side surface of the digging rod can abut against the inner edge of the pit digging hole; therefore, the range of the pit to be excavated on the lower side of the pit chiseling hole is limited, the condition that the edge of the excavated pit is uneven is avoided, and the detection accuracy of a sand filling method is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed compaction detection equipment, in particular to a pit-digging equipment for roadbed compaction detection using a sand-filling method. Background Art

[0002] The sand filling method is a commonly used method for testing the compaction of roadbed. Its basic principle is to replace the soil sample in the test pit with standard sand, and calculate the volume of the soil sample by measuring the mass change of the sand before and after the replacement, and then obtain the density of the soil sample.

[0003] In the prior art, when using the sand filling method to detect the compaction of the roadbed, it is necessary to ensure that the edge of the excavated pit corresponds to the inner edge of the pit hole of the base plate; however, due to the uncertainty of the construction workers' operating experience, it is difficult to control the processing of this edge correspondence when using a shovel for excavation, resulting in unevenness of the edge of the pit, thereby affecting the actual detection results. Therefore, the present application provides a pit drilling equipment for detecting the compaction of the roadbed using the sand filling method. Utility Model Content

[0004] In order to solve the deficiencies in the above-mentioned prior art, the purpose of the utility model is to provide a pit-digging device for detecting the compaction degree of roadbed by the sand filling method. The device can limit the range of the pit to be dug on the lower side of the pit with reference to the edge of the pit hole on the base plate, thereby avoiding unevenness on the edge of the excavated pit and improving the detection accuracy of the sand filling method.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] Provided is a pit-digging device for detecting the compaction degree of roadbed by sand filling method, comprising a base plate, a vertical column, a first horizontal arm, a second horizontal arm and a chiseling rod; the bottom of the base plate abuts against the ground, a pit-digging hole is arranged on the middle side of the bottom of the base plate, a vertical column is fixedly mounted on the base plate, a first horizontal arm is vertically slidably mounted on the vertical column, a second horizontal arm is horizontally slidably mounted inside the first horizontal arm, and a chiseling rod is mounted on the second horizontal arm; the side surface of the chiseling rod can abut against the inner edge of the pit-digging hole.

[0007] Furthermore, four vertical columns and four chiseling rods are provided, and the four vertical columns are respectively provided at the four corner edges of the base plate.

[0008] Furthermore, a magnetic ring is fixedly mounted on the first horizontal arm, and the magnetic ring is connected to the iron sheet on the top of the vertical column through magnetic adsorption coupling.

[0009] Furthermore, a tension spring is installed between the lower end of the first cross arm and the top of the base plate.

[0010] Furthermore, the first cross arm and the second cross arm are respectively provided with a handle I and a handle II.

[0011] Furthermore, a thread groove is arranged on the outer side of the upper end of the chiseling rod, and the thread groove is engaged with the second cross arm through a threaded buckle, and a handle III is arranged on the top of the chiseling rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model discloses a pit-digging device for detecting the compaction degree of roadbed by the sand filling method. The vertical position and rotational position of the first horizontal arm on the vertical column are adjusted, and the spacing of the second horizontal arm at the end of the first horizontal arm is adjusted, so that the chiseling rod digs the sand and soil inside the pit hole. Since the chiseling rod is always kept in a vertical state and the side surface of the chiseling rod can abut against the inner edge of the pit hole, the range of the pit to be dug on the lower side of the pit hole is limited with reference to the edge of the pit hole on the base plate, so as to avoid unevenness on the edge of the excavated pit hole and improve the detection accuracy of the sand filling method.

[0014] 2. The utility model exemplifies the pit-digging equipment for detecting the compaction degree of roadbed by the sand filling method, wherein four chiseling rods are provided, and the four chiseling rods are distributed at the four corner edges of the base plate. Part of the chiseling rods are inserted into the sand and soil to be used for positioning the base plate on the ground, and the other chiseling rods are used for excavation operation to ensure the stable progress of the excavation operation.

[0015] 3. The digging equipment for detecting the compaction degree of roadbed by the sand filling method in the utility model is used to rotate the handle III to further adjust the relative vertical height between the bottom of the digging rod and the base plate, so as to meet the digging needs of pits of different depths. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0017] Figure 1 A schematic diagram of the structure of a base plate, a first cross arm and a second cross arm provided in an embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the structure of the base plate, vertical column and tension spring provided in the embodiment of the utility model;

[0019] Figure 3 This is a schematic diagram of the structures of handle I, handle II and handle III provided in an embodiment of the utility model.

[0020] In the figure: 11 base plate, 12 chiseling hole, 13 vertical column, 14 tension spring, 21 first cross arm, 211 handle I, 212 magnetic ring, 22 second cross arm, 221 handle II, 23 chiseling rod, 231 handle III, 232 threaded groove. DETAILED DESCRIPTION

[0021] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0022] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0023] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. It should also be noted that, for ease of description, only the parts related to the utility model are shown in the drawings.

[0027] Embodiment 1:

[0028] like Figure 1-3As shown, this embodiment provides a digging device for detecting the compaction degree of roadbed by sand filling method, comprising a base plate 11, a vertical column 13, a first horizontal arm 21, a second horizontal arm 22 and a digging rod 23; the bottom of the base plate 11 is in contact with the ground, a digging hole 12 is provided at the middle side of the bottom of the base plate 11, a vertical column 13 is fixedly installed on the base plate 11, a first horizontal arm 21 is vertically slidably installed on the vertical column 13, a second horizontal arm 22 is horizontally slidably installed in the first horizontal arm 21, and a digging rod 23 is installed on the second horizontal arm 22;

[0029] The first cross arm 21 and the second cross arm 22 are respectively provided with a handle Ⅰ211 and a handle Ⅱ221. The bottom of the chiseling rod 23 is provided with a conical surface so that the chiseling rod 23 can be stably inserted into the ground, and the side surface of the chiseling rod 23 can abut against the inner edge of the chiseling hole 12.

[0030] When in use, hold handle I 211 and handle II 221, adjust the vertical position and rotational position of the first horizontal arm 21 on the vertical column 13, and adjust the spacing of the second horizontal arm 22 at the end of the first horizontal arm 21, so that the chiseling rod 23 can excavate the sand and soil inside the chiseled hole 12. Since the chiseling rod 23 always remains in a vertical state, and the side surface of the chiseling rod 23 can abut against the inner edge of the chiseled hole 12, the range of the pit to be excavated on the lower side of the chiseled hole 12 is limited with reference to the inner edge of the chiseled hole 12 on the substrate, thereby avoiding unevenness on the edge of the excavated pit and improving the detection accuracy of the sand filling method.

[0031] In order to improve the stability of excavation operations, such as Figure 1 As shown, the vertical columns 13 and the chiseling rods 23 are each provided in four numbers. The four vertical columns 13 are respectively provided at the four corner edges of the base plate 11, and the four chiseling rods 23 are respectively provided on the four vertical columns 13. Part of the chiseling rods 23 are inserted into the sand and used to position the base plate 11 on the ground, and the other chiseling rods 23 are used to perform the excavation operation to ensure the stable progress of the excavation operation.

[0032] In order to increase the stabilizing effect of the digging rod 23 inserted into the sand, Figure 2 As shown, a tension spring 14 is installed between the lower end of the first cross arm 21 and the top of the base plate 11, so that the chiseling rod 23 can be stably inserted into the sand.

[0033] In order to increase the placement effect of the chiseling rod 23 in the idle state, as Figure 2 As shown, a magnetic ring 212 is fixedly installed on the first cross arm 21. The magnetic ring 212 uses an electromagnet or a rubidium magnet, so that the magnetic ring 212 is coupled with the iron sheet on the top of the vertical column 13 through magnetic adsorption. At this time, the magnetic adsorption force between the magnetic ring 212 and the iron sheet is greater than the tension of the tension spring 14, so that the digging rod 23 remains detached from the ground when idle.

[0034] Embodiment 2:

[0035] The features of this embodiment that are the same as those of the first embodiment are not described in detail. The difference between this embodiment and the first embodiment is that: Figure 1-3 As shown, in this embodiment, a thread groove 232 is provided on the outer side of the upper end of the chiseling rod 23, and the thread groove 232 is engaged with the second cross arm 22 by a threaded screw thread, and a handle III 231 is provided on the top of the chiseling rod 23; by rotating the handle III 231, the relative vertical height between the bottom of the chiseling rod 23 and the base plate 11 can be further adjusted to meet the excavation needs of pits of different depths.

[0036] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the utility model. For example, the above features are replaced with the technical features with similar functions disclosed in the present application (but not limited to) by each other to form a technical solution.

[0037] Except for the technical features described in the specification, the other technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present utility model, the other technical features will not be described in detail here.

Claims

1. A drilling device for detecting the compaction degree of roadbed by sand filling method, comprising a base plate (11) with a drilling hole (12) arranged at the middle side of the bottom, characterized in that: A vertical column (13) is fixedly mounted on the base plate (11); a first horizontal arm (21) is vertically slidably mounted on the vertical column (13); a second horizontal arm (22) is horizontally slidably mounted inside the first horizontal arm (21); a chiseling rod (23) is mounted on the second horizontal arm (22); and a side surface of the chiseling rod (23) is capable of abutting against an inner edge of the chiseling hole (12).

2. The pit-digging equipment for detecting the compaction degree of roadbed by sand filling method according to claim 1 is characterized in that: Four of the vertical columns (13) and the chiseling rods (23) are provided, and the four vertical columns (13) are respectively provided at the four corner edges of the base plate (11).

3. The pit-digging equipment for detecting the compaction degree of roadbed by sand filling method according to claim 1 is characterized in that: A magnetic ring (212) is fixedly mounted on the first horizontal arm (21), and the magnetic ring (212) is connected to the iron sheet at the top of the vertical column (13) through magnetic adsorption coupling.

4. The pit digging equipment for testing the compaction degree of roadbed by sand filling method according to claim 1 is characterized in that: A tension spring (14) is installed between the lower end of the first cross arm (21) and the top of the base plate (11).

5. The pit-digging equipment for testing the compaction degree of roadbed by sand filling method according to claim 1 is characterized in that: The bottom of the chiseling rod (23) is provided with a conical surface.

6. The pit-digging equipment for testing the compaction degree of roadbed by sand filling method according to claim 1 is characterized in that: The first cross arm (21) and the second cross arm (22) are provided with a handle I (211) and a handle II (221) respectively.

7. The pit-digging equipment for testing the compaction degree of roadbed by sand filling method according to claim 1 is characterized in that: A thread groove (232) is provided on the outer side of the upper end of the chiseling rod (23), the thread groove (232) is engaged with the second cross arm (22) via a threaded buckle, and a handle III (231) is provided on the top of the chiseling rod (23).

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