CN205506446U - Novel earth drill - Google Patents

Abstract

The utility model discloses a novel earth drill, including drill bit, drilling rod and handle, the both ends at the drilling rod are installed respectively to drill bit and handle, its characterized in that, at drilling rod lower extreme externally mounted connecting portion, connecting portion are a conical sleeve, and the suit is outside the drilling rod, cavity and its lower extreme are the arc coupongs of two symmetries in the drill bit, it blocks up to establish one end in the drilling rod and the junction of handle. The utility model discloses be suitable for the soil of different grade type, especially comparatively hard soil or have the soil of hard thing such as certain chad, the material that adopts be the stainless steel, can guarantee light, hard, sharpness, can avoid again rustting, and frictional resistance when reducing to get into the soil layer prevents that soil is contaminated, the drilling rod end is strikeed with the iron hammer to stifled assurance of end, and the drilling rod end can not take place to warp when the promotion drill bit got into comparatively hard soil layer, reduced drag when arc design can be guaranteed to provide the earth boring auger from comparatively hard soil layer, while need not rotate and provide, it is more convenient, laborsaving.

Description

A kind of Novel earth drill

Technical field

This utility model belongs to soil sample technical field, relates to a kind of drawing out soil equipment, particularly a kind of Novel earth drill.

Background technology

In view of the soil importance to survival and development of mankind, all the time, the physicochemical character of soil is studied All the element task in the fields such as agricultural, waterwork, earth boring auger as gather soil sample instrument can not or Lack.At present, common geotome mostly is T-shape handle type, and first, its material mostly is cast iron, easily Getting rusty, when fetching earth, not only its surface rust increases frictional resistance when going deep into soil layer, makes soil sample again Become to pollute, the accuracy of impact sampling；Secondly, drilling rod directly welds with handle, when with iron hammer When percussion weld promotes drill bit to enter the hardest soil layer, drilling rod can produce with the weld of handle Deformation；3rd, when outside diameter is more than drilling rod, there is knuckle in the connecting portion between drilling rod and drill bit, During proposing earth boring auger, frictional resistance is big, wastes time and energy；Additionally, in the boring of disturbed soil Being commonly present hard foreign body, the existence of knuckle blocks the difficulty that drill bit proposes.4th, in hardness relatively In big soil, or the stronger soil of the bigger soil of unit weight, viscosity, the moment of earth boring auger handle is not Foot, the difficulty going deep into soil layer is bigger.It would therefore be highly desirable to a kind of earth boring auger that can accurately sample.

Summary of the invention

In order to overcome defect or deficiency present in above-mentioned prior art, the purpose of this utility model is, There is provided one easily to operate, easily realize, sample earth boring auger accurately, when tapping drilling rod end with iron hammer, push away Drilling rod end when drilling into the hardest soil layer of breaking ground will not deform, and proposes earth boring auger from soil layer During, frictional resistance reduces, time saving and energy saving, to solve the problem that in reality, conventional earth boring auger exists.

In order to reach object above, the technical solution that this utility model employing is following:

A kind of Novel earth drill, is separately mounted to bore including drill bit, drilling rod and handle, drill bit and handle The two ends of bar；Installing a junction outside drilling rod lower end, connecting portion is a conical sleeve, is sleeved on Outside drilling rod；A bar-shaped trough is had along its short transverse in hollow, and drill bit in drill bit；At drilling rod and hands The junction of handle sets one end and blocks up.

Further, the connected mode between described drill bit, drilling rod, arc, handle and end are stifled is equal Use welding.

Further, on drill bit, the lower end of the both sides of bar-shaped trough is respectively equipped with 3,4 or 5 sawtooth.

Further, the lower section of each described arc coupongs is provided with 3 sawtooth.

Further, the thickness of described sawtooth is gradually reduced to end by root, and its sectional elevation presents For right angled triangle；The hypotenuse of described right angled triangle near the outside of arc coupongs, long right-angle side Concordant with the inwall of arc coupongs.

Further, described drilling rod is prism or cylinder.

Further, described handle is prism or cylinder.

Further, it is provided with screw thread in described handle end.

Further, the cone angle of described connecting portion is 40-60 °.

Further, the cone angle of described connecting portion is 60 °.

The beneficial effects of the utility model: be suitable for different types of soil are the hardest The soil of the hard things such as certain chad is there is after soil, or artificial disturbance；The material used is rustless steel, Both can guarantee that light, hard, sharp, and can avoid again getting rusty, reduced frictional resistance when entering soil layer, Soil is prevented to be contaminated；Stifled ensure that of end taps drilling rod end with iron hammer, promotes drill bit to enter more hard During hard soil layer, drilling rod end will not deform；Cambered design can ensure from the hardest soil layer Propose to reduce resistance during earth boring auger, need not rotate and propose, more convenient, laborsaving.

Accompanying drawing explanation

Fig. 1 is the structural representation of Novel earth drill of the present utility model.

Each label implication in figure: 1, drill bit；2, connecting portion；3, drilling rod；4, handle；5, end is stifled； 1-1, arc coupongs；1-2, sawtooth；4-1, screw thread.

Detailed description of the invention

Below in conjunction with drawings and Examples the utility model is further explained explanation.

As it is shown in figure 1, Novel earth drill of the present utility model, including drill bit 1, drilling rod 3 and handle 4, Drill bit 1 and handle 4 are separately mounted to the two ends of drilling rod 3；One connection is installed outside drilling rod 3 lower end Portion 2, connecting portion 2 is a conical sleeve, is sleeved on outside drilling rod 3；Hollow in drill bit 1, and drill bit 1 On have a bar-shaped trough 1-1 along its short transverse；Set one end in the junction of drilling rod 3 with handle 4 and block up 5； End stifled 5 taps drilling rod 2 end for guarantee iron hammer, when promoting drill bit 1 to enter harder soil layer And do not deform.

Optionally, on drill bit 1, the lower end of the both sides of bar-shaped trough 1-1 is respectively equipped with 3,4 or 5 sawtooth 1-2, preferably 3.Being designed to so that the traveling of drill bit is more laborsaving of sawtooth.

Optionally, the thickness of sawtooth 1-2 is gradually reduced to end by root, and its sectional elevation is rendered as Right angled triangle.Wherein, the hypotenuse of right angled triangle near the outside of drill bit 1, long right-angle side and arc The inwall of shape coupongs 1-1 is concordant.Such being designed to ensures that unnecessary soil is in sampling process It is easier to be extruded to outside drill bit 1.

Optionally, one or more in drill bit 1, drilling rod 3, connecting portion 2, handle 4 or end stifled 5 Material be rustless steel.

Optionally, the connection side between drill bit 1, connecting portion 2, drilling rod 3, handle 4 and end stifled 5 Formula all uses welding.

Optionally, it is provided with screw thread 4-1 at handle 4 end, in order to the sleeve that is spirally connected so that handle 4 Extension, to increase torque arm length.Thus or increase moment, or reduce strength consumption, with Reduction earth boring auger gos deep into difficulty during soil layer.

Optionally, the cone angle of connecting portion 2 is 40-60 °, this angle can make drill bit 1 be easier to from Soil proposes.In terms of test, difficulty, difficulty of processing and the part reliability when drill bit proposes Consider, preferably 60 degree.

Optionally, it is placed equidistant between sawtooth.

Optionally, drilling rod 3 is prism or cylinder.

Optionally, handle 4 is prism or cylinder.

When using this utility model to fetch earth, drilling rod 2 being perpendicular to sample ground and holds up, soil property is relatively Time soft, pressing handle 4 makes drill bit 1 be deep in soil；When soil property is the hardest, strike with iron hammer The end hitting drilling rod 2 and handle 4 junction blocks up 5, promotes drill bit 1 to be deep in soil；Then hands is lifted Handle 4 proposes drill bit 1；Finally with slotted point screwdriver, the soil sample taking-up in drill bit 1 is contained in labelling good In aluminum box or plastic packaging bag.If it is relatively elaborate to bore soil in above process, then sleeve can be screwed onto Handle 4 end make its elongated just can be more laborsaving.

Claims (8)

1. a Novel earth drill, is separately mounted to the two ends of drilling rod including drill bit, drilling rod and handle, drill bit and handle；It is characterized in that, installing a junction outside drilling rod lower end, connecting portion is a conical sleeve, is sleeved on outside drilling rod；A bar-shaped trough is had along its short transverse in hollow, and drill bit in drill bit；Set one end to block up in the junction of drilling rod Yu handle.

2. Novel earth drill as claimed in claim 1, it is characterised in that the connected mode between described drill bit, connecting portion, drilling rod, handle and end are stifled all uses welding.

3. Novel earth drill as claimed in claim 1, it is characterised in that on drill bit, the lower end of the both sides of bar-shaped trough is respectively equipped with 3,4 or 5 sawtooth.

4. the Novel earth drill as described in claim 1-3 is arbitrary, it is characterised in that described drilling rod is prism or cylinder.

5. the Novel earth drill as described in claim 1-3 is arbitrary, it is characterised in that described handle is prism or cylinder.

6. the Novel earth drill as described in claim 1-3 is arbitrary, it is characterised in that be provided with screw thread in described handle end.

7. the Novel earth drill as described in claim 1-3 is arbitrary, it is characterised in that the cone angle of described connecting portion is 40-60 °.

8. Novel earth drill as claimed in claim 7, it is characterised in that the cone angle of described connecting portion is 60 °.