A dragline

Abstract

The utility model relates to the field of archaeological sampling technology, more particularly to a probe shovel, including the shaft, the shovel head and handle of setting in the both ends of shaft, the shovel head is cylindrical and is wrapped, the top, the lower side of shovel head all are open setting, the inner wall of shovel head is equipped with the convex strip that is spiral, the bottom fixedly connected with the spiral head of shovel head, the bottom of spiral head is knife edge shape, the utility model discloses the spiral head is provided at the bottom of shovel head, after entering the soil layer, the cutting edge area of spiral head bottom is larger than the bottom area of traditional cylindrical shovel head, makes the cutting edge area of spiral head bottom to change greatly, is more favorable to cutting chip soil layer, in addition, holds the handle and rotates the force, through the spiral head effect in the soil layer, is more time -saving and labour -saving.

Description

Technical Field

[0001] This utility model relates to the field of archaeological sampling technology, specifically to a probe shovel. Background Technology

[0002] The shovel, also known as the Luoyang shovel, is a tool frequently used by archaeologists and geologists. It is used to strike the ground vertically downwards, inserting the shovel head into the soil. Then, by slightly rotating the shovel, it is pulled out to collect soil, which is then used for archaeological surveys.

[0003] Existing shovels typically have a simple cylindrical head with a small cutting edge area at the bottom. When sampling soil layers, they require hammering or other methods to penetrate the soil, resulting in high labor intensity for workers. In addition, to facilitate sampling at different depths, the shovel shaft is often designed with multiple segments connected by threads. However, with simple threaded connections, when the shovel head is at a certain depth, the threads can easily loosen when workers rotate the shovel left and right, causing the shovel head to become stuck in the pit. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a probe shovel to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A shovel includes a shaft, shovel heads and handles at both ends of the shaft. The shovel heads are cylindrical and have openings at the top, bottom and one side. The inner wall of the shovel head has spiral ridges. A spiral head is fixedly connected to the bottom of the shovel head, and the bottom of the spiral head is blade-shaped.

[0007] An extension rod is fixedly mounted on the handle, and a connecting seat is fixedly mounted on the top of the shovel head. The rod body includes at least one connecting rod. A protruding post is fixedly connected to the top of both the connecting rod and the connecting seat. A threaded post is fixedly connected to the top of the protruding post. A circular groove that matches the protruding post is provided at the bottom of both the connecting rod and the extension rod. A third threaded groove that matches the thread of the threaded post is provided at the top of the inner wall of the circular groove. An anti-loosening mechanism is provided at the bottom of both the connecting rod and the extension rod. The anti-loosening mechanism is used to prevent the threaded post and the third threaded groove from becoming loose.

[0008] Preferably, the anti-loosening mechanism includes a receiving groove, a threaded rod, a hemispherical block, and a knob. The receiving groove is located on one side of the inner wall of the circular groove. The receiving groove has a threaded hole that communicates with the outside. The middle part of the threaded rod is threadedly connected to the threaded hole. One end of the threaded rod is fixedly connected to a knob, and the other end is fixedly connected to a hemispherical block.

[0009] Preferably, it also includes a foot pedal, one end of which is fixedly connected to a threaded shaft, and the connecting seat is provided with a first threaded groove, the threaded shaft being threadedly adapted to the first threaded groove.

[0010] Preferably, the connecting rod has a cavity inside.

[0011] Preferably, a plurality of reinforcing rods are fixed inside the cavity along the axial direction of the connecting rod, and the reinforcing rods are horizontally arranged.

[0012] Preferably, the reinforcing rod is provided with a second threaded groove, the groove opening of the second threaded groove faces away from the knob, and the threaded shaft is threadedly matched with the second threaded groove.

[0013] Preferably, the foot pedal is provided with anti-slip grooves, which include several annular grooves arranged along the axial direction of the foot pedal and arc-shaped grooves arranged along the circumference of the foot pedal.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] First, a spiral head is installed at the bottom of the shovel head. After entering the soil layer, the cutting edge area at the bottom of the spiral head is larger than that of the traditional cylindrical shovel head, which increases the contact area between the cutting edge and the soil, making it more effective for cutting the soil layer. In addition, by gripping the handle and rotating it, the spiral head acts on the soil layer, saving more time and effort.

[0016] Secondly, this application is equipped with an anti-loosening mechanism. When the connecting seat is threadedly connected to the connecting rod, the connecting rod to the connecting rod, or the connecting rod to the extension rod, the anti-loosening mechanism can further prevent the threaded connection from loosening. This makes it less likely for the threaded connection to loosen when the probe is rotated, greatly improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is one of the separate schematic diagrams of the connecting rod, connecting seat and extension rod in this utility model.

[0019] Figure 3 This is the second schematic diagram showing the separation of the connecting rod, connecting seat, and extension rod in this utility model.

[0020] Figure 4 This is a cross-sectional view of the connecting rod in this utility model.

[0021] Figure 5 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0022] Figure 6 This is a schematic diagram of the spiral head in this utility model.

[0023] Figure 7 This is a schematic diagram of the foot pedal structure in this utility model.

[0024] The meanings of the labels in the diagram are as follows: 10, shovel head; 100, raised bar; 101, spiral head; 11, connecting seat; 110, first threaded groove; 12, connecting rod; 120, cavity; 121, reinforcing rod; 122, second threaded groove; 13, handle; 14, extension rod; 20, raised post; 21, threaded post; 22, circular groove; 23, third threaded groove; 24, receiving groove; 25, threaded rod; 26, hemispherical block; 27, knob; 30, threaded plug; 40, foot pedal; 41, threaded shaft; 42, anti-slip groove. Detailed Implementation

[0025] 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.

[0026] This utility model provides a technical solution:

[0027] A type of probe, please refer to Figures 1-7 It includes a pole, shovel heads 10 located at both ends of the pole, and a handle 13. The shovel head 10 is cylindrical and has openings at the top, bottom, and one side, so that the soil taken can be poured out from the opening on one side.

[0028] The shovel head 10 can be made of stainless steel, which has better waterproof and corrosion-resistant properties.

[0029] The inner wall of the shovel head 10 is provided with a spiral rib 100, which can be welded and fixed to the shovel head 10. Compared with the smooth inner wall of the shovel head 10, the spiral rib 100 is designed to capture and retain soil, preventing soil from falling off the shovel head 10 during extraction. When the shovel head 10 is lifted out of the ground, the soil can be poured out through the opening on one side of the shovel head 10.

[0030] See Figure 1 and Figure 6 The bottom of the shovel head 10 is fixedly connected to a spiral head 101, the bottom of which is blade-shaped. After entering the soil layer, the blade area at the bottom of the spiral head 101 is larger than that at the bottom of a traditional cylindrical shovel head, and the contact area between the blade area at the bottom of the spiral head 101 and the soil is larger, which is more conducive to cutting the soil layer. In addition, by gripping the handle 13 and rotating it, the spiral head 101 acts on the soil layer, which is more time-saving and labor-saving.

[0031] An extension rod 14 is fixedly provided on the handle 13. The extension rod 14 can be welded to the handle 13 and is perpendicular to the handle 13.

[0032] A connecting seat 11 is fixedly provided on the top of the shovel head 10, and the connecting seat 11 is welded and fixed to the shovel head 10.

[0033] The rod body includes at least one connecting rod 12. The accompanying drawings of this application only show the case of one connecting rod 12. Depending on the actual soil sampling depth required, multiple connecting rods 12 can be connected to increase the overall length of the probe.

[0034] Both the top of the connecting rod 12 and the top of the connecting seat 11 are fixedly connected to a protruding post 20. A threaded post 21 is fixedly connected to the top of the protruding post 20. The diameter of the protruding post 20 is larger than the diameter of the threaded post 21. The bottom of both the connecting rod 12 and the extension rod 14 are provided with a circular groove 22 that matches the protruding post 20. The top of the inner wall of the circular groove 22 is provided with a third threaded groove 23 that matches the thread of the threaded post 21.

[0035] In actual use and assembly, the bottom circular groove 22 of the connecting rod 12 can be aligned with the threaded post 21 at the top of the connecting seat 11 and inserted. Then, the connecting rod 12 can be rotated so that the threaded post 21 is threaded into the third threaded groove 23. At this time, the protrusion 20 is exactly placed in the circular groove 22, and the top of the connecting seat 11 abuts against the bottom of the connecting rod 12.

[0036] If multiple connecting rods 12 are required, the bottom end of another connecting rod 12 can be threaded onto the top end of the lower connecting rod 12. Finally, the bottom end of the extension rod 14 can be threaded onto the top end of the uppermost connecting rod 12, thus connecting the main structure of the probe shovel.

[0037] Because of the simple threaded connection, when the shovel head is at a certain depth for soil extraction, the threaded connection may loosen when the operator rotates the shovel left and right, which may cause the shovel head to get stuck in the pit. To avoid this situation, this application provides an anti-loosening mechanism at the lower part of both the connecting rod 12 and the extension rod 14. The anti-loosening mechanism is used to prevent the threaded column 21 and the third threaded groove 23 from loosening. In this way, the threaded connection is less likely to loosen when rotating the shovel, which greatly improves the practicality of the device.

[0038] Specifically, the anti-loosening mechanism includes a receiving groove 24, a threaded rod 25, a hemispherical block 26, and a knob 27. The receiving groove 24 is located on one side of the inner wall of the circular groove 22. The receiving groove 24 is provided with a threaded hole that communicates with the outside. The threaded hole is horizontally set. The middle part of the threaded rod 25 is threadedly connected to the threaded hole. One end of the threaded rod 25 is located outside and is fixedly connected to the knob 27, and the other end is located inside the receiving groove 24 and is fixedly connected to the hemispherical block 26.

[0039] After the threaded post 21 is threadedly connected to the third threaded groove 23, the protrusion 20 is located in the circular groove 22. At this time, turning the knob 27 moves the threaded rod 25 inward, causing the hemispherical block 26 to press against the protrusion 20, thereby further preventing the threaded post 21 from loosening after being connected to the third threaded groove 23. When turning the knob 27 moves the threaded rod 25 outward, the hemispherical block 26 can be stored in the receiving groove 24, which makes it easy to unscrew the threaded post 21 from the third threaded groove 23, thus facilitating disassembly.

[0040] The connecting rod 12 has a cavity 120 inside. The cavity 120 can reduce the weight of the connecting rod 12, making it easier to use and carry.

[0041] See Figure 4 A number of reinforcing rods 121 are fixed inside the cavity 120 along the axial direction of the connecting rod 12, and the reinforcing rods 121 are horizontally arranged.

[0042] It also includes a foot pedal 40, one end of which is fixedly connected to a threaded shaft 41. The connecting seat 11 is provided with a first threaded groove 110, which is horizontally set, and the threaded shaft 41 is threadedly matched with the first threaded groove 110.

[0043] The reinforcing rod 121 is provided with a second threaded groove 122. The second threaded groove 122 is horizontally set and the groove opening of the second threaded groove 122 faces the side away from the knob 27. The threaded shaft 41 is threadedly matched with the second threaded groove 122.

[0044] When it is difficult for workers to manually insert the shovel head 10 into the soil, they can use the foot pedal 40 to apply force with their feet, making it easier to insert the shovel head 10 into the soil.

[0045] Depending on the depth to which the shovel head 10 is inserted into the soil, the foot pedal 40 can be installed at a suitable height on the connecting seat 11 or the connecting rod 12.

[0046] It is worth noting that when the connecting seat 11 is threadedly connected to the connecting rod 12, the first thread groove 110 and the second thread groove 122 are exactly parallel; when one connecting rod 12 is threadedly connected to another connecting rod 12, the second thread grooves 122 on the two connecting rods 12 are exactly parallel; when the connecting rod 12 is threadedly connected to the extension rod 14, the second thread groove 122 is exactly parallel to the handle 13.

[0047] It also includes multiple threaded plugs 30, which can be threadedly adapted to the first threaded groove 110 and the second threaded groove 122. When the foot pedal 40 is installed in the first threaded groove 110, the multiple threaded plugs 30 are respectively threadedly connected to each of the second threaded grooves 122. This can prevent soil from entering the second threaded groove 122 after insertion into the soil layer. Similarly, when the foot pedal 40 is installed in the second threaded groove 122, the multiple threaded plugs 30 are respectively threadedly connected to the first threaded groove 110 and the remaining second threaded grooves 122.

[0048] The foot pedal 40 is provided with anti-slip grooves 42, which include several annular grooves arranged along the axial direction of the foot pedal 40 and arc-shaped grooves arranged along the circumference of the foot pedal 40.

Claims

1. A shovel, comprising a shaft, shovel heads (10) disposed at both ends of the shaft, and a handle (13), characterized in that: The shovel head (10) is cylindrical and has openings at the top, bottom and one side. The inner wall of the shovel head (10) is provided with spiral protrusions (100). The bottom of the shovel head (10) is fixedly connected to a spiral head (101), and the bottom of the spiral head (101) is blade-shaped. An extension rod (14) is fixedly mounted on the handle (13), and a connecting seat (11) is fixedly mounted on the top of the shovel head (10). The rod body includes at least one connecting rod (12). A protruding post (20) is fixedly connected to the top of the connecting rod (12) and the connecting seat (11). A threaded post (21) is fixedly connected to the top of the protruding post (20). A circular groove (22) that matches the protruding post (20) is provided at the bottom of the connecting rod (12) and the extension rod (14). A third threaded groove (23) that matches the thread of the threaded post (21) is provided at the top of the inner wall of the circular groove (22). An anti-loosening mechanism is provided at the bottom of the connecting rod (12) and the extension rod (14). The anti-loosening mechanism is used to prevent the threaded post (21) and the third threaded groove (23) from loosening.

2. The probe shovel according to claim 1, characterized in that: The anti-loosening mechanism includes a receiving groove (24), a threaded rod (25), a hemispherical block (26), and a knob (27). The receiving groove (24) is located on one side of the inner wall of the circular groove (22). The receiving groove (24) has a threaded hole that communicates with the outside. The middle part of the threaded rod (25) is threadedly connected to the threaded hole. One end of the threaded rod (25) is fixedly connected to the knob (27), and the other end is fixedly connected to the hemispherical block (26).

3. A probe according to claim 2, characterized in that: It also includes a foot pedal (40), one end of which is fixedly connected to a threaded shaft (41), and the connecting seat (11) is provided with a first threaded groove (110), and the threaded shaft (41) is threadedly matched with the first threaded groove (110).

4. A probe according to claim 3, characterized in that: The connecting rod (12) has a cavity (120) inside.

5. A probe according to claim 4, characterized in that: A number of reinforcing rods (121) are fixedly installed in the cavity (120) along the axial direction of the connecting rod (12), and the reinforcing rods (121) are horizontally arranged.

6. A probe according to claim 5, characterized in that: The reinforcing rod (121) has a second threaded groove (122) inside. The opening of the second threaded groove (122) faces away from the knob (27). The threaded shaft (41) is threadedly matched with the second threaded groove (122).

7. A probe according to claim 3, characterized in that: The foot pedal (40) is provided with anti-slip grooves (42), which include several annular grooves arranged along the axial direction of the foot pedal (40) and arc-shaped grooves arranged along the circumference of the foot pedal (40).

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