Sampling Equipment for Soil Testing

Abstract

The present invention discloses a sampling device for soil detection, belonging to the field of testing technology. It mainly includes a vibrator, a guiding rod group and a traction mechanism. The guiding rod group includes a pedal and a rack. The pedal is used for an operator to step on, and the rack is perpendicular to the pedal. A plurality of first tooth grooves are arranged on the circumference of the rack and are distributed in an axial array along the rack. The traction mechanism includes a mounting frame connected to the vibrator, a tooth claw swingably arranged on the mounting frame, an elastic unit, and a limit stop connected to the mounting frame. The sampling device for soil detection of the present invention can effectively save physical strength when in use.

Description

Technical Field

[0001] The present invention relates to the technical field of testing, and particularly relates to a sampling device for soil detection. Background Art

[0002] With the popularization of scientific planting techniques, the collection of various environmental parameters of farmland is becoming increasingly important in agricultural planting. Among them, parameters such as soil composition and structure are also very important reference parameters for selecting crop types and planting methods. Soil sampling refers to the method of collecting soil samples, including the layout of sampling and sampling techniques.

[0003] In order to save effort, existing sampling devices for soil detection usually have a vibrator. The vibrator can generate alternating up-and-down vibrations, driving the soil around the drill rod to vibrate, thereby reducing the friction between the drill rod and the soil. Under the action of the gravity of the device and the downward thrust applied by the operator, the drill bit of the drill rod continuously impacts the soil layer and penetrates downward. However, during use, since the device vibrates up and down alternately, when the device vibrates upward, it will offset part of the effect of downward impact on the soil layer. To reduce this negative effect, the gravity of the device can be increased by adding counterweights. This way of increasing weight will obviously affect the mobility of the device. Therefore, generally, the operator holds the device and presses it downward to reduce the negative effect of upward movement caused by the upward vibration of the device, ensuring the efficiency of the drill rod penetrating into the soil layer. However, this method is obviously very labor-consuming.

[0004] Therefore, it is necessary to provide a new sampling device for soil detection. Summary of the Invention

[0005] Based on the above problems existing in the prior art, the purpose of the embodiment of the present invention is to provide a sampling device for soil detection, which can effectively save physical strength during use.

[0006] To achieve the above object, the technical solution adopted by the present invention is: to provide a sampling device for soil detection, including a vibrator, a guide rod group, and a traction mechanism. The guide rod group includes a pedal and a rack. The pedal is for an operator to step on. The rack is vertically arranged on the pedal. A plurality of first tooth grooves are arranged in an axial array on the circumference of the rack. The traction mechanism includes a mounting frame connected to the vibrator, a tooth claw swingably arranged on the mounting frame, an elastic unit, and a limit stop connected to the mounting frame. When the traction mechanism is in the first state, that is, the tooth claw is opposite to the side of the rack with the first tooth groove, the tooth claw is located above the limit stop. The elastic unit always applies an elastic force to the tooth claw to urge the tooth claw to swing downward. When the tooth claw swings downward and abuts against the limit stop, the tooth claw is received into the first tooth groove. When the mounting frame moves downward relative to the rack along with the vibration of the vibrator, the tooth claw swings upward against the elastic force of the elastic unit and disengages from the first tooth groove, and the tooth claw swings to be caught in the lower first tooth groove under the push of the elastic force of the elastic unit.

[0007] Further, the first tooth groove has a wedge-shaped structure. A first pushing wall is provided on the upper side of the first tooth groove, and an inclined wall is provided on the lower side of the first tooth groove. A first matching wall is provided at the front end of the tooth claw and on the first side of the tooth claw.

[0008] Further, the first side of the tooth claw is the first contact side. The first matching wall is located on the first contact side of the tooth claw. The second side of the tooth claw is the second contact side. When the tooth claw is received into the first tooth groove, the second contact side of the tooth claw faces the inclined wall of the first tooth groove.

[0009] Further, a plurality of second tooth grooves are arranged in an axial array on the circumference of the rack. The second tooth grooves are radially offset from the first tooth grooves on the rack. The rack is rotatably connected to the pedal. When the rack rotates to make the tooth claw opposite to the side of the rack with the second tooth groove, when the traction mechanism is in the second state, that is, the tooth claw is located below the limit stop. The elastic unit always applies an elastic force to the tooth claw to urge the tooth claw to swing upward. When the tooth claw swings upward and abuts against the limit stop, the tooth claw is received into the second tooth groove.

[0010] Further, the second tooth groove has a wedge-shaped structure. An inclined wall is provided on the upper side of the second tooth groove, and a second pushing wall is provided on the lower side of the second tooth groove. A second matching wall is provided at the front end of the tooth claw and on the second side of the tooth claw. When the traction mechanism is in the second state and the tooth claw is received into the second tooth groove, the second matching wall on the second side of the tooth claw faces the second pushing wall of the second tooth groove, and the first side of the tooth claw abuts against the limit stop. The second matching wall is located on the second contact side of the tooth claw.

[0011] Further, the elastic unit includes a pushing top end, a rod body, and an elastic member. The rod body is connected to the mounting bracket. The pushing top end is slidably arranged along a straight line at the front end of the rod body, and the elastic member is arranged between the rod body and the pushing top end.

[0012] Further, the mounting bracket is provided with a first mounting hole capable of being detachably connected to the rod body and a second mounting hole capable of being detachably connected to the rod body. The first mounting hole is located above the tooth claw, and the second mounting hole is located below the tooth claw. When the traction mechanism is in the first state, the rod body of the elastic unit is inserted into the first mounting hole. When the traction mechanism is in the second state, the rod body of the elastic unit is inserted into the second mounting hole.

[0013] Further, the traction mechanism further includes a guide roller. The guide roller is rotationally fitted on the mounting bracket, and the outer peripheral wall of the guide roller is in rolling contact with the outer peripheral wall of the rack.

[0014] Further, the guide rod group further includes a guide rod. The guide rod is parallel to the rack. One end of the guide rod is connected to the pedal, and the guide rod is slidably fitted on the vibrator along the axial direction of the guide rod.

[0015] Further, the vibrator is connected with a damping frame through a damping structure, and the mounting bracket is mounted on the damping frame.

[0016] The beneficial effects of the present invention are as follows: The sampling device for soil detection provided by the present invention includes a vibrator, a guide rod group, and a traction mechanism. The guide rod group includes a pedal and a rack. The pedal is for an operator to step on. A plurality of first tooth grooves are arranged in an axial array along the circumference of the rack. The traction mechanism includes a mounting frame connected to the vibrator, a tooth claw swingably arranged on the mounting frame, an elastic unit, and a limit stop connected to the mounting frame. When the traction mechanism is in the first state, that is, the tooth claw faces the side of the rack with the first tooth groove, the tooth claw is located above the limit stop, and the elastic unit always applies an elastic force to urge the tooth claw to swing downward. When the tooth claw swings downward and abuts against the limit stop, the tooth claw is received into the first tooth groove. When the mounting frame drives the mounting frame to move downward relative to the rack along with the vibration of the vibrator, the tooth claw swings upward against the elastic force of the elastic unit and disengages from the first tooth groove, and the tooth claw swings under the push of the elastic force of the elastic unit to be caught in the lower first tooth groove. When the mounting frame drives the mounting frame to move upward relative to the rack along with the vibration of the vibrator, the tooth claw abuts against the first tooth groove to drive the tooth claw to have a tendency to swing downward, but since the tooth claw abuts against the lower limit stop, the downward swing is limited. Therefore, the mounting frame and the rack are relatively stationary. Also, since the rack is fixed to the ground by the operator stepping on the pedal, under the abutment and limitation between the tooth claw, the first tooth groove, and the limit stop, the mounting frame and the vibrator cannot generate a negative upward displacement relative to the ground. Therefore, compared with the prior art, through the above technical solution, the negative upward vibration of the vibrator is avoided, and there is no need for the operator to apply force to push down, which can effectively save physical strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the sampling device for soil detection provided by an embodiment of the present invention in a use state.

[0019] Figure 2 It is an exploded view of the sampling device for soil detection provided by an embodiment of the present invention.

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the vibrator provided by an embodiment of the present invention.

[0021] Figure 4 It is an exploded view of the vibrator provided by an embodiment of the present invention.

[0022] Figure 5 It is an exploded view of the guide rod group provided by an embodiment of the present invention.

[0023] Figure 6 It is a structural schematic diagram of the rack provided by an embodiment of the present invention.

[0024] Figure 7An exploded view of a traction mechanism provided in an embodiment of the present invention.

[0025] Figure 8 A schematic structural diagram of a tooth claw provided in an embodiment of the present invention.

[0026] Figure 9 for Figure 1 A front view of a sampling device for soil testing is shown.

[0027] Figure 10 For along Figure 9 Cross-sectional view along the EE direction.

[0028] Figure 11 for Figure 10 An enlarged schematic diagram of area A in the middle shows that the traction mechanism is in a first state.

[0029] Figure 12 For Figure 10 Another use state of the soil testing sampling device is shown in FIG.

[0030] Figure 13 For Figure 10 A schematic diagram of a soil testing sampling device is shown in FIG. 1 , in which the traction mechanism is shown in a second state.

[0031] Figure 14 for Figure 13 An enlarged schematic diagram of area B in the figure shows that the traction mechanism is in the second state.

[0032] Among them, the reference numerals in the figure are: 1. exciter; 11. adapter end; 12. vibration damping frame; 2. guide rod group; 21. pedal; 22. rack; 221. tooth groove one; 2211. push wall one; 2212. inclined wall one; 222. tooth groove two; 2221. push wall two; 2222. inclined wall two; 23. guide rod; 231. sliding seat; 3. vibration damping structure; 31. pull rod; 32. vibration damping spring one; 33. vibration damping spring two; 34. support plate; 4. traction mechanism; 41. mounting frame; 411. mounting hole one; 412. mounting hole two; 42. rotating shaft; 421. toggle wheel; 43. tooth claw; 431. matching wall one; 432. matching wall two; 433. contact side one; 434. contact side two; 44. elastic unit; 45. limit stop; 46. guide roller. DETAILED DESCRIPTION

[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] It should be noted that when an element is referred to as being "connected to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "mounted", "connected", and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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 a limitation to the present invention.

[0037] Referring to "one embodiment" or "embodiments" throughout the specification means that the specific features, structures, or characteristics described in connection with the embodiments are included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment", "in some embodiments", or "in some of these embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. In addition, in one or more embodiments, the specific features, structures, or characteristics can be combined in any suitable manner.

[0038] Please refer to Figures 1 to 14 As shown, a soil detection sampling device provided by the present invention will now be described. The soil detection sampling device includes a vibrator 1, a guide rod group 2, and a traction mechanism 4. The bottom of the vibrator 1 is connected to a drill rod and a drill bit (not shown in the figure). The vibrator 1 is used to generate up-and-down alternating vibrations. The guide rod group 2 includes a pedal 21 and a rack 22. The pedal 21 is for an operator to step on, so that the operator can step on the pedal 21 to press the pedal 21 against the ground by his own weight. The rack 22 is vertically disposed on the pedal 21. A plurality of first tooth grooves 221 are arranged in an axial array along the circumference of the rack 22. The traction mechanism 4 includes a mounting bracket 41 connected to the vibrator 1, a claw 43 swingably disposed on the mounting bracket 41, an elastic unit 44, and a limit stop 45 connected to the mounting bracket 41. AsFigure 11 As shown, when the traction mechanism 4 is in the first state, that is, the claw 43 faces the side of the rack 22 with the tooth groove 221, the claw 43 is located above the limit stop 45, and the elastic unit 44 always exerts an elastic force on the claw 43 to urge the claw 43 to swing downward. When the claw 43 swings downward and abuts against the limit stop 45, the claw 43 is received into the tooth groove 221. When the mounting bracket 41 moves downward relative to the rack 22 with the vibration of the vibrator 1, the claw 43 swings upward against the elastic force of the elastic unit 44 and disengages from the tooth groove 221, and the claw 43 is pushed by the elastic force of the elastic unit 44 to swing down and snap into the tooth groove 221 below. When the mounting bracket 41 moves upward relative to the rack 22 with the vibration of the vibrator 1, the claw 43 abuts against the tooth groove 221, driving the claw 43 to have a tendency to swing downward. However, since the claw 43 abuts against the lower limit stop 45, the downward swing is limited. Therefore, the mounting bracket 41 and the rack 22 are relatively stationary. Also, since the rack 22 is fixed to the ground by the pedal 21 being stepped on by the operator, the mounting bracket 41 and the vibrator 1 cannot generate a negative upward displacement relative to the ground under the abutment and limitation between the claw 43, the tooth groove 221, and the limit stop 45. Therefore, compared with the prior art, the above technical solution avoids the negative upward vibration of the vibrator 1, and there is no need for the operator to apply force to push down, which can effectively save physical strength.

[0039] In some embodiments, the pedal 21 is located below the vibrator 1.

[0040] As Figure 6 shown, in some embodiments, the tooth groove 221 has a wedge-shaped structure. A pushing wall 2211 is provided on the upper side of the tooth groove 221, and an inclined wall 2212 is provided on the lower side of the tooth groove 221. As Figure 8 shown, a mating wall 431 is provided at the front end of the claw 43 and on the first side of the claw 43. As Figure 11 shown, when the traction mechanism 4 is in the first state and the claw 43 is received into the tooth groove 221, the mating wall 431 on the first side of the claw 43 faces the pushing wall 2211 of the tooth groove 221, and the second side of the claw 43 abuts against the limit stop 45. During the process of the rack 22 moving axially relative to the claw 43 along the pushing wall 2211 towards the inclined wall 2212, the mating wall 431 abuts against the pushing wall 2211, thereby pushing the claw 43 to swing and abut against the lower limit stop 45. During the process of the rack 22 moving axially relative to the claw 43 along the inclined wall 2212 towards the pushing wall 2211, the inclined wall 2212 abuts against the second side of the claw 43 and exerts a thrust on the claw 43, driving the claw 43 to swing upward against the elastic force of the elastic unit 44 and disengage from the tooth groove 221, so that the claw 43 moves closer to the tooth groove 221 below.

[0041] As Figure 8 shown, in some of these embodiments, the first side of the pawl 43 is the first contact side 433, and the first mating wall 431 is located on the first contact side 433 of the pawl 43.

[0042] As Figure 8 shown, in some of these embodiments, the second side of the pawl 43 is the second contact side 434. When the pawl 43 is received in the first tooth groove 221, the second contact side 434 of the pawl 43 faces the inclined wall 2212 of the first tooth groove 221. During the process of the rack 22 moving axially relative to the pawl 43 from the inclined wall 2212 to the first pushing wall 2211, the inclined wall 2212 abuts against the second contact side 434 of the pawl 43, thereby generating a tangential force along the rotation axis of the pawl 43 between the inclined wall 2212 and the second contact side 434, causing the pawl 43 to swing upward against the elastic force of the elastic unit 44 and disengage from the first tooth groove 221.

[0043] As Figure 11 shown, in some of these embodiments, the traction mechanism 4 further includes a rotating shaft 42. The rotating shaft 42 is rotatably fitted on the mounting frame 41, and the pawl 43 is connected to the rotating shaft 42, so that the pawl 43 can swing around the axis of the rotating shaft 42 following the rotation of the rotating shaft 42.

[0044] As Figure 11 shown, in some of these embodiments, the elastic unit 44 includes a pushing top end 441, a rod body 442, and an elastic member 443. The rod body 442 is connected to the mounting frame 41. The pushing top end 441 is slidably arranged along a straight line at the front end of the rod body 442. The elastic member 443 is arranged between the rod body 442 and the pushing top end 441, so that the pushing top end 441 can elastically expand and contract on the rod body 442. The pushing top end 441 faces the pawl 43. When the traction mechanism 4 is in Figure 11 the first state shown, the pushing top end 441 abuts against the upper side of the pawl 43, thereby applying an elastic force to the pawl 43 to drive the pawl 43 to always have a tendency to swing downward and approach the limit stop 45.

[0045] As Figure 7 and Figure 11 shown, in some of these embodiments, the limit stop 45 has a cylindrical structure, and the limit stop 45 is parallel to the rotating shaft 42.

[0046] In addition, in order to make the soil detection sampling device provided by the embodiments of the present invention more labor-saving when pulling out the drill rod from the soil layer upward, as Figure 6 shown, in some of these embodiments, a plurality of second tooth grooves 222 are arranged on the circumferential side of the rack 22 and are distributed in an axial array along the rack 22. The second tooth grooves 222 are radially offset from the first tooth groove 221 on the rack 22. The rack 22 is rotatably connected to the pedal 21, as Figure 13 and Figure 14As shown, when the rack 22 rotates to the side where the tooth claw 43 faces the side of the rack 22 with the second tooth groove 222, when the traction mechanism 4 is in the second state, that is, the tooth claw 43 is located below the limit stop 45, the elastic unit 44 always applies an upward elastic force to the tooth claw 43 to promote the upward swing of the tooth claw 43. When the tooth claw 43 swings upward and abuts against the limit stop 45, the tooth claw 43 is received into the second tooth groove 222. When the mounting bracket 41 drives the mounting bracket 41 to move upward relative to the rack 22 along with the vibration of the vibrator 1, the tooth claw 43 swings downward against the elastic force of the elastic unit 44 and disengages from the second tooth groove 222, and the tooth claw 43 swings upward under the push of the elastic force of the elastic unit 44 and is caught in the upward first tooth groove 221. Thus, as the vibrator 1 vibrates upward, the vibrator 1 gradually moves upward relative to the rack 22, prompting the drill rod to gradually move upward out of the soil layer without the need for an operator to pull it out manually. And when the mounting bracket 41 drives the mounting bracket 41 to have a downward movement trend relative to the rack 22 along with the vibration of the vibrator 1, the tooth claw 43 abuts against the first tooth groove 221, and since the tooth claw 43 also abuts against the lower limit stop 45, the upward swing of the tooth claw 43 is restricted, making the rack 22 and the mounting bracket 41 relatively stationary. Since the rack 22 is fixed to the ground by the pedal 21 being stepped on by the operator, the mounting bracket 41 and the vibrator 1 cannot move downward relative to the ground, avoiding the drill rod moving downward when the vibrator 1 generates a downward vibration and affecting the extraction of the drill rod. It can be understood that to avoid the sample detaching from the drill rod due to the violent vibration of the vibrator 1, the amplitude and frequency of the vibrator 1 can be adjusted and reduced.

[0047] As Figure 6 shown, in some embodiments, the second tooth groove 222 has a wedge-shaped structure. An inclined wall 2222 is provided on the upper side of the second tooth groove 222, and a pushing wall 2221 is provided on the lower side of the second tooth groove 222. As Figure 8 shown, a mating wall 432 is provided at the front end of the tooth claw 43 and on the second side of the tooth claw 43. As Figure 14As shown, when the traction mechanism 4 is in the second state and the pawl 43 is received into the second tooth groove 222, the mating wall two 432 on the second side of the pawl 43 faces the pushing wall two 2221 of the second tooth groove 222, and the first side of the pawl 43 abuts against the limit stop 45. During the process of the rack 22 moving axially relative to the pawl 43 along the pushing wall two 2221 towards the inclined wall two 2222, the mating wall two 432 abuts against the pushing wall two 2221, thereby pushing the pawl 43 to swing and abut against the upper limit stop 45. During the process of the rack 22 moving axially relative to the pawl 43 along the inclined wall two 2222 towards the pushing wall two 2221, the inclined wall two 2222 abuts against the first side of the pawl 43 and applies a thrust to the pawl 43, driving the pawl 43 to swing downward against the elastic force of the elastic unit 44 and disengaging from the second tooth groove 222, so that the pawl 43 moves closer to the upper second tooth groove 222. Specifically, the mating wall two 432 is located on the contact side two 434 of the pawl 43. When the pawl 43 is received into the second tooth groove 222, the contact side one 433 of the pawl 43 faces the inclined wall two 2222 of the second tooth groove 222. During the process of the rack 22 moving axially relative to the pawl 43 from the inclined wall two 2222 towards the pushing wall two 2221, the inclined wall two 2222 abuts against the contact side one 433 of the pawl 43, thereby generating a tangential force along the rotation axis of the pawl 43 between the inclined wall two 2222 and the contact side one 433, causing the pawl 43 to swing downward against the elastic force of the elastic unit 44 and disengaging from the second tooth groove 222.

[0048] As Figure 11 and Figure 14 shown, in some embodiments, the mounting bracket 41 is provided with a first mounting hole 411 capable of being detachably connected to the rod body 442, and a second mounting hole 412 capable of being detachably connected to the rod body 442. The first mounting hole 411 is located above the pawl 43, and the second mounting hole 412 is located below the pawl 43. When the traction mechanism 4 is in the first state, the rod body 442 of the elastic unit 44 is inserted into the first mounting hole 411. When the traction mechanism 4 is in the second state, the rod body 442 of the elastic unit 44 is inserted into the second mounting hole 412. Specifically, in this embodiment, the rod body 442 and the first mounting hole 411 / the second mounting hole 412 are in threaded engagement to achieve the detachable connection between the rod body 442 and the first mounting hole 411 / the second mounting hole 412.

[0049] As Figure 7 shown, in some embodiments, a dial wheel 421 is installed at one end of the rotating shaft 42 extending out of the mounting bracket 41. As Figure 11 shown, when it is necessary to adjust the traction mechanism 4 to be in the first state, in order to Figure 11 rotate the rotating shaft 42 by turning the dial wheel 421 counterclockwise in Figure 14As shown, or when it is necessary to adjust the traction mechanism 4 to be in the second state, so as to Figure 14 The toggle wheel 421 is toggled clockwise to rotate the shaft 42 , so that the shaft 42 rotates and drives the tooth claw 43 to swing and switch to the lower side of the limit stop 45 .

[0050] like Figure 7 As shown, in some embodiments, the traction mechanism 4 further includes a guide roller 46, which is rotatably matched with the mounting frame 41, and the outer peripheral wall of the guide roller 46 is in rolling contact with the outer peripheral wall of the rack 22, so as to guide the rack 22 along the axial direction of the rack 22, so that the rack 22 can move linearly along the axial direction relative to the mounting frame 41 of the traction mechanism 4. Specifically, there are a plurality of guide rollers 46, a plurality of guide rollers 46 are arranged around the circumference of the rack 22, and a plurality of guide rollers 46 are distributed at intervals along the axial direction of the rack 22.

[0051] like Figure 5 As shown, in some embodiments, the guide rod group 2 further includes a guide rod 23, the guide rod 23 is parallel to the rack 22, one end of the guide rod 23 is connected to the pedal 21, and the guide rod 23 is slidably fitted on the exciter 1 along the axial direction of the guide rod 23. Specifically, a sliding seat 231 is installed on the exciter 1, and the guide rod 23 is slidably installed on the sliding seat 231.

[0052] like Figure 5 As shown, in some embodiments, the guide rod set 2 includes two guide rods 23 and two racks 22, the two guide rods 23 are diagonally distributed, and the two racks 22 are diagonally distributed, so that the guide rod set 2 is subjected to balanced forces.

[0053] like Figure 3 and Figure 4 As shown, in some of the embodiments, the exciter 1 is connected to the vibration damping frame 12 through the vibration damping structure 3, and the mounting frame 41 and the sliding seat 231 are installed on the vibration damping frame 12 to reduce the amplitude transmitted from the exciter 1 to the vibration damping frame 12, reduce the impact of vibration on the operator when operating the vibration damping frame 12, and reduce the vibration transmitted from the exciter 1 to the traction mechanism 4.

[0054] like Figure 3 and Figure 4 As shown, in some embodiments, the vibration reduction structure 3 includes a pull rod 31, a vibration reduction spring 1 32, a vibration reduction spring 2 33 and a support plate 34, the vibration reduction frame 12 is located above the exciter 1, the pull rod 31 is connected to the vibration reduction frame 12, the support plate 34 is connected to the pull rod 31, the vibration reduction spring 1 32 is elastically supported between the vibration reduction frame 12 and the exciter 1, and the vibration reduction spring 1 32 is compressed when the exciter 1 moves upward, and the vibration reduction spring 2 33 is elastically supported between the exciter 1 and the support plate 34, and the vibration reduction spring 2 33 is compressed when the exciter 1 moves downward.

[0055] likeFigure 1 As shown, in some of these embodiments, a transfer end 11 is installed at the bottom of the vibrator 1, and the transfer end 11 is used to connect the drill pipe, so as to transmit the hammering force generated by the vibrator 1 to the drill pipe for drilling work.

[0056] The vibrator 1 is an existing mature technology, so no more details will be given here.

[0057] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A soil sampling device, characterized in that: The invention comprises an exciter, a guide rod group and a traction mechanism, wherein the guide rod group comprises a pedal and a rack, wherein the pedal is used for an operator to step on, the rack is vertically arranged on the pedal, and a plurality of tooth grooves one distributed in an axial array along the rack are arranged on the peripheral side of the rack, the traction mechanism comprises a mounting frame connected to the exciter, a tooth claw swingably arranged on the mounting frame, an elastic unit, and a limit stop connected to the mounting frame, when the traction mechanism is in a first state, that is, the tooth claw is opposite to a side of the rack having the tooth groove one, the tooth claw is located on the upper side of the limit stop, the elastic unit always applies an elastic force to the tooth claw to cause the tooth claw to swing downward, when the tooth claw swings downward and abuts against the limit stop, the tooth claw is received in the tooth groove one, when the mounting frame moves downward relative to the rack as the exciter vibrates and drives the mounting frame to move downward, the tooth claw swings upward against the elastic force of the elastic unit and escapes from the tooth groove one, and makes the tooth claw swing down to be stuck in the tooth groove one below under the push of the elastic force of the elastic unit, and the rack is provided with a plurality of tooth grooves one on the peripheral side. The tooth grooves 2 are distributed in an axial array along the rack, and the tooth grooves 2 and the tooth grooves 1 are deviated from each other in the radial direction of the rack. The rack is rotatably connected to the pedal. When the rack rotates until the tooth claw is opposite to the side of the rack having the tooth groove 2, when the traction mechanism is in the second state, that is, the tooth claw is located at the lower side of the limit stopper, the elastic unit always applies an elastic force to the tooth claw to cause the tooth claw to swing upward. When the tooth claw swings upward and abuts against the limit stopper, the tooth claw is received in the tooth groove 2. The elastic unit includes a pushing top, a rod body and an elastic member. The rod body is connected to a mounting frame, and the pushing top is arranged at the front end of the rod body along a straight line for sliding. The elastic member is arranged between the rod body and the pushing top. The mounting frame is provided with a mounting hole 1 that can be detachably connected to the rod body, and a mounting hole 2 that can be detachably connected to the rod body. The mounting hole 1 is located on the upper side of the tooth claw, and the mounting hole 2 is located on the lower side of the tooth claw. When the traction mechanism is in the first state, the rod body of the elastic unit is inserted into the mounting hole 1, and when the traction mechanism is in the second state, the rod body of the elastic unit is inserted into the mounting hole 2.

2. The soil sampling device according to claim 1, characterized in that: The tooth groove 1 is a wedge-shaped structure, a push wall 1 is provided on the upper side of the tooth groove 1, an inclined wall 1 is provided on the lower side of the tooth groove 1, and a matching wall 1 is provided at the front end of the tooth claw and on the first side of the tooth claw.

3. The soil sampling device according to claim 2, characterized in that: The first side of the tooth claw is contact side one, the matching wall one is located on the contact side one of the tooth claw, and the second side of the tooth claw is contact side two. When the tooth claw is retracted into the tooth groove one, the contact side two of the tooth claw meets the inclined wall one of the tooth groove one.

4. The soil sampling device according to claim 3, characterized in that: The tooth groove 2 is a wedge-shaped structure, and an inclined wall 2 is provided on the upper side of the tooth groove 2, and a push wall 2 is provided on the lower side of the tooth groove 2. A matching wall 2 is provided at the front end of the tooth claw and on the second side of the tooth claw. When the traction mechanism is in the second state and the tooth claw is retracted into the tooth groove 2, the matching wall 2 on the second side of the tooth claw meets the push wall 2 of the tooth groove 2, and the first side of the tooth claw abuts against the limit stopper, and the matching wall 2 is located on the contact side 2 of the tooth claw.

5. The soil sampling device according to claim 1, characterized in that: The traction mechanism also includes a guide roller, which is rotatably matched with the mounting frame, and the outer peripheral wall of the guide roller is in rolling contact with the outer peripheral wall of the rack.

6. The soil sampling device according to claim 1, characterized in that: The guide rod group also includes a guide rod, which is parallel to the rack. One end of the guide rod is connected to the pedal, and the guide rod is slidably matched on the exciter along the axial direction of the guide rod.

7. The soil testing sampling device according to claim 6, characterized in that: The vibration exciter is connected to a vibration reduction frame via a vibration reduction structure, and the mounting frame is mounted on the vibration reduction frame.

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