Sampling equipment for soil detection

Abstract

The invention discloses sampling equipment for soil detection, and belongs to the technical field of testing. The device mainly comprises a vibration exciter, a guide rod set and a traction mechanism, the guide rod set comprises a pedal and a rack, the pedal is used for being treaded by an operator, the rack is vertically arranged on the pedal, and a plurality of first tooth grooves distributed in the axial direction of the rack in an array mode are formed in the peripheral side of the rack; the traction mechanism comprises an installation frame connected with the vibration exciter, a tooth claw arranged on the installation frame in a swinging mode, an elastic unit and a limiting block connected with the installation frame. When the sampling equipment for soil detection is used, physical strength can be effectively saved.

Description

Technical Field

[0001] The invention relates to the field of testing technology, and in particular to a sampling device for soil testing. Background Art

[0002] With the popularization of scientific planting technology, the collection of various environmental parameters of farmland is becoming more and more 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 sampling layout and sampling technology.

[0003] In order to save effort, existing soil testing sampling equipment is usually designed with a vibrator. The vibrator can generate alternating up and down vibrations, drive the soil around the drill rod to vibrate, thereby reducing the friction between the drill rod and the soil, so that the drill bit of the drill rod continuously impacts the soil layer and penetrates deeper under the action of the gravity of the equipment and the downward thrust applied by the operator. However, during use, since the equipment vibrates alternately up and down, the upward vibration of the equipment will offset part of the effect of the downward impact on the soil layer. To reduce this negative effect, the gravity of the equipment can be increased by adding counterweights. This method of increasing weight will obviously affect the maneuverability of the equipment. Therefore, the operator usually grasps the equipment and presses the equipment downward to reduce the negative upward effect caused by the upward vibration of the equipment, thereby ensuring the efficiency of the drill rod in drilling into the soil layer. However, this method is obviously very physically demanding.

[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, an object of an embodiment of the present invention is to provide a soil testing sampling device that can effectively save physical effort when used.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a soil testing sampling device is provided, including a vibrator, a guide rod group and a traction mechanism, the guide rod group includes a pedal and a rack, the pedal is used for an operator to step on, the rack is vertically arranged on the pedal, and the peripheral side of the rack is provided with a plurality of tooth grooves 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, When the guiding mechanism is in the first state, that is, the claw is opposite to the side of the rack having the tooth groove 1, the claw is located on the upper side of the limit stop, and the elastic unit always applies an elastic force to the claw to cause the claw to swing downward. When the claw swings downward and abuts against the limit stop, the claw is received in the tooth groove 1. When the mounting frame moves downward relative to the rack due to the vibration of the exciter, the claw swings upward against the elastic force of the elastic unit and escapes from the tooth groove 1, and the claw is pushed by the elastic force of the elastic unit to swing down and get stuck in the tooth groove 1 below.

[0007] Furthermore, 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.

[0008] Furthermore, 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.

[0009] Furthermore, a plurality of tooth grooves 2 are arranged in an axial array along the rack on the circumferential side, and the tooth grooves 2 are offset from the tooth grooves 1 in the radial direction of the rack, and the rack is rotatably connected to the pedal. When the rack rotates until the 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 claw is located at the lower side of the limit stop, the elastic unit always applies an elastic force to the claw to cause the claw to swing upward, and when the claw swings upward and abuts against the limit stop, the claw is retracted into the tooth groove 2.

[0010] Furthermore, the tooth groove 2 is a wedge-shaped structure, an inclined wall 2 is provided on the upper side of the tooth groove 2, a push wall 2 is provided on the lower side of the tooth groove 2, and 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 stop, and the matching wall 2 is located on the contact side 2 of the tooth claw.

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

[0012] Furthermore, 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.

[0013] Furthermore, the traction mechanism also includes a guide roller, which is rotatably engaged with the mounting frame, and an outer peripheral wall of the guide roller is in rolling contact with an outer peripheral wall of the rack.

[0014] Furthermore, the guide rod group also includes a guide rod, which is parallel to the rack, one end of which is connected to the pedal, and the guide rod is slidably fitted on the exciter along the axial direction of the guide rod.

[0015] Furthermore, the vibration exciter is connected to a vibration reduction frame via a vibration reduction structure, and the mounting frame is installed on the vibration reduction frame.

[0016] The beneficial effects of the present invention are as follows: the soil testing sampling equipment 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 used for an operator to step on, a plurality of tooth grooves 1 distributed in an axial array along the rack are arranged on the peripheral side 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 a first state, that is, the tooth claw is opposite to the side of the rack having the tooth groove 1, 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 retracted into the tooth groove 1, when the mounting frame moves downward relative to the rack as the vibrator vibrates, the tooth claw The claw swings upward against the elastic force of the elastic unit and disengages from the tooth groove one, and the claw is pushed down by the elastic force of the elastic unit to swing into the tooth groove one below. When the mounting frame tends to move upward relative to the rack due to the vibration of the exciter, the claw resists the tooth groove one and drives the claw to have a tendency to swing downward. However, since the claw resists the limit stopper on the lower side and the downward swing is limited, the mounting frame and the rack are relatively stationary. Since the rack is fixed to the ground by the operator's stepping on the pedal, the mounting frame and the exciter cannot produce negative upward displacement relative to the ground due to the resistance and limit between the claw, tooth groove one and the limit stopper. Therefore, compared with the prior art, the above technical solution avoids the negative upward movement caused by the upward vibration of the exciter, and there is no need for the operator to push down, which can effectively save physical effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a soil testing sampling device provided by an embodiment of the present invention in a usage state.

[0019] Figure 2 An exploded view of a soil testing sampling device provided in an embodiment of the present invention.

[0020] Figure 3 A schematic diagram of the three-dimensional structure of an exciter provided in an embodiment of the present invention.

[0021] Figure 4 An exploded view of an exciter provided in an embodiment of the present invention.

[0022] Figure 5 An exploded view of a guide rod assembly provided in an embodiment of the present invention.

[0023] Figure 6 A schematic diagram of the structure of a rack provided in 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] Fig. 9 for Figure 1 A front view of a sampling device for soil testing is shown.

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

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

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

[0030] Fig.13 For Fig.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] Fig.14 for Fig.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 limited, the terms "installed", "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 a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, when the phrases "in one embodiment," "in some embodiments," or "in some of these embodiments" appear in various places throughout the specification, not all references are to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics may be combined in any suitable manner.

[0038] Please refer to Figures 1 to 14 As shown, a soil sampling device provided by the present invention is now described. The soil 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 alternating vibrations up and down. The guide rod group 2 includes a pedal 21 and a rack 22. The pedal 21 is used for an operator to step on, so that the operator can press the pedal 21 to the ground with his own weight by stepping on the pedal 21. The rack 22 is vertically arranged on the pedal 21. The peripheral side of the rack 22 is provided with a plurality of tooth grooves 221 distributed in an axial array along the rack 22. The traction mechanism 4 includes a mounting frame 41 connected to the vibrator 1, a tooth claw 43 swingably arranged on the mounting frame 41, an elastic unit 44, and a limit stop 45 connected to the mounting frame 41. Fig.11 As shown, when the traction mechanism 4 is in the first state, that is, the claw 43 is opposite to the side of the rack 22 having the tooth groove 221, the claw 43 is located on the upper side of the limit stop 45, and the elastic unit 44 always applies an elastic force to the claw 43 to cause the claw 43 to swing downward. When the claw 43 swings downward and abuts against the limit stop 45, the claw 43 is received in the tooth groove 221. When the mounting frame 41 moves downward relative to the rack 22 with the vibration of the exciter 1, the claw 43 swings upward against the elastic force of the elastic unit 44 and escapes from the tooth groove 221, and the claw 43 is pushed down by the elastic force of the elastic unit 44 to be stuck in the tooth groove 221 below. When the mounting frame 41 moves downward relative to the rack 22 with the vibration of the exciter 1, the claw 43 swings upward against the elastic force of the elastic unit 44 and escapes from the tooth groove 221, and the claw 43 is pushed down by the elastic force of the elastic unit 44 to be stuck in the tooth groove 221 below. When the mounting frame 41 tends to move upward relative to the rack 22, the claw 43 resists against the tooth groove 221, driving the claw 43 to have a tendency to swing downward, but the claw 43 resists against the limit stop 45 on the lower side, so that the downward swing is limited, so that the mounting frame 41 and the rack 22 are relatively stationary. Since the rack 22 is fixed to the ground by the operator along with the pedal 21, the mounting frame 41 and the exciter 1 cannot produce a negative upward displacement relative to the ground due to the resistance and limit 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 movement of the exciter 1 due to the upward vibration, and there is no need for the operator to push down, which can effectively save physical strength.

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

[0040] like Figure 6 As shown, in some embodiments, the tooth groove 221 is a wedge-shaped structure, the upper side of the tooth groove 221 is provided with a push wall 2211, and the lower side of the tooth groove 221 is provided with an inclined wall 2212, such as Figure 8 As shown, a matching wall 431 is provided at the front end of the tooth claw 43 and at the first side of the tooth claw 43. Fig.11 As shown, when the traction mechanism 4 is in the first state and the pawl 43 is retracted into the tooth groove 221, the matching wall 431 on the first side of the pawl 43 meets the pushing wall 2211 of the tooth groove 221, and the second side of the pawl 43 abuts against the limit stopper 45. In the process that the rack 22 moves axially relative to the pawl 43 along the pushing wall 2211 toward the inclined wall 2212, the matching wall 431 abuts against the pushing wall 2211, thereby pushing the pawl 43 to swing against the limiting stopper 45 on the lower side. In the process that the rack 22 moves axially relative to the pawl 43 along the inclined wall 2212 toward the pushing wall 2211, the inclined wall 2212 abuts against the second side of the pawl 43 and applies a thrust to the pawl 43, driving the pawl 43 to swing upward against the elastic force of the elastic unit 44 and escape from the tooth groove 221, so that the pawl 43 moves close to the tooth groove 221 below.

[0041] like Figure 8 As shown, in some embodiments, the first side of the tooth claw 43 is a contact side 1 433 , and the matching wall 1 431 is located on the contact side 1 433 of the tooth claw 43 .

[0042] like Figure 8 As shown, in some embodiments, the second side of the tooth claw 43 is the contact side 434. When the tooth claw 43 is retracted into the tooth groove 221, the contact side 434 of the tooth claw 43 meets the inclined wall 2212 of the tooth groove 221. In the process of the rack 22 moving axially from the inclined wall 2212 to the pushing wall 2211 relative to the tooth claw 43, the inclined wall 2212 and the contact side 434 of the tooth claw 43 are abutted, thereby generating a tangential force along the rotation axis of the tooth claw 43 between the inclined wall 2212 and the contact side 434, so that the tooth claw 43 swings upward against the elastic force of the elastic unit 44 and escapes from the tooth groove 221.

[0043] like Fig.11 As shown, in some embodiments, the traction mechanism 4 also includes a rotating shaft 42, which is rotatably engaged with the mounting frame 41, and a tooth claw 43 is connected to the rotating shaft 42, so that the tooth claw 43 can swing around the axis of the rotating shaft 42 following the rotation of the rotating shaft 42.

[0044] like Fig.11 As shown, in some embodiments, the elastic unit 44 includes a pushing top 441, a rod body 442 and an elastic member 443, the rod body 442 is connected to the mounting frame 41, the pushing top 441 is arranged at the front end of the rod body 442 along a straight line, and the elastic member 443 is arranged between the rod body 442 and the pushing top 441, so that the pushing top 441 can be elastically extended and retracted on the rod body 442, and the pushing top 441 is toward the tooth claw 43, when the traction mechanism 4 is located Fig.11 In the first state shown, the pushing top 441 abuts against the upper side of the toothed claw 43 , thereby applying elastic force to the toothed claw 43 to drive the toothed claw 43 to always have a tendency to swing downward toward the limit stop 45 .

[0045] like Figure 7 and Fig.11 As shown, in some embodiments, the limit stopper 45 is a cylindrical structure, and the limit stopper 45 is parallel to the rotating shaft 42.

[0046] In addition, in order to make the soil sampling device provided in the embodiment of the present invention more labor-saving when pulling the drill rod out of the soil layer upward, Figure 6 As shown, in some embodiments, the circumferential side of the rack 22 is provided with a plurality of tooth grooves 222 distributed in an axial array along the rack 22, the tooth grooves 222 and the tooth grooves 1 221 are offset in the radial direction of the rack 22, and the rack 22 is rotatably connected to the pedal 21, as shown in FIG. Fig.13 and Fig.14As shown, when the rack 22 rotates to the point where the claw 43 is opposite to the side of the rack 22 having the tooth groove 222, when the traction mechanism 4 is in the second state, that is, the claw 43 is located at the lower side of the limit stop 45, the elastic unit 44 always applies an elastic force to the claw 43 to cause the claw 43 to swing upward, and when the claw 43 swings upward and abuts against the limit stop 45, the claw 43 is received in the tooth groove 222. When the mounting frame 41 moves upward with the vibration of the exciter 1, the claw 43 swings downward against the elastic force of the elastic unit 44 and escapes from the tooth groove 222, and the claw 43 is pushed by the elastic force of the elastic unit 44 to swing upward and be stuck in the upward tooth groove 1 221, so that as the exciter 1 vibrates upward, the exciter 1 gradually moves relative to the rack 22. The upward movement causes the drill rod to gradually move up and out of the soil layer, and there is no need for the operator to pull it out manually. When the mounting frame 41 has a tendency to move downward relative to the rack 22 due to the vibration of the exciter 1, the claw 43 abuts against the tooth groove 221, and because the claw 43 abuts against the lower limit stop 45, the upward swing of the claw 43 is restricted, so that the rack 22 and the mounting frame 41 are relatively stationary. Since the rack 22 is fixed to the ground by the operator along with the pedal 21, the mounting frame 41 and the exciter 1 cannot move downward relative to the ground, which avoids the drill rod being pushed downward when the exciter 1 generates downward vibration, affecting the pulling out of the drill rod. It can be understood that in order to avoid the vibrator 1 vibrating violently and causing the sample to detach from the drill rod, the amplitude and frequency of the exciter 1 can be adjusted to reduce.

[0047] like Figure 6 As shown, in some embodiments, the second tooth groove 222 is a wedge-shaped structure, the upper side of the second tooth groove 222 is provided with a second inclined wall 2222, and the lower side of the second tooth groove 222 is provided with a second push wall 2221, such as Figure 8 As shown, a second matching wall 432 is provided at the front end of the tooth claw 43 and at the second side of the tooth claw 43. Fig.14As shown, when the traction mechanism 4 is in the second state and the tooth claw 43 is retracted into the tooth groove 222, the matching wall 232 on the second side of the tooth claw 43 meets the pushing wall 2221 of the tooth groove 222, and the first side of the tooth claw 43 abuts against the limit stopper 45. In the process that the rack 22 moves axially relative to the tooth claw 43 along the pushing wall 2221 toward the inclined wall 2222, the matching wall 232 abuts against the pushing wall 2221, thereby pushing the tooth claw 43 to swing against the upper limit stopper 45. In the process that the rack 22 moves axially relative to the tooth claw 43 along the inclined wall 2222 toward the pushing wall 2221, the inclined wall 2222 abuts against the first side of the tooth claw 43 and applies a thrust to the tooth claw 43, driving the tooth claw 43 to swing downward against the elastic force of the elastic unit 44 and escape from the tooth groove 222, so that the tooth claw 43 moves close to the upper tooth groove 222. Specifically, the matching wall 232 is located on the contact side 234 of the tooth claw 43. When the tooth claw 43 is retracted into the tooth groove 222, the contact side 1 433 of the tooth claw 43 meets the inclined wall 2222 of the tooth groove 222. In the process of the rack 22 moving axially from the inclined wall 2222 to the pushing wall 2221 relative to the tooth claw 43, the inclined wall 2222 and the contact side 1 433 of the tooth claw 43 are abutted, thereby generating a tangential force along the rotation axis of the tooth claw 43 between the inclined wall 2222 and the contact side 1 433, so that the tooth claw 43 swings downward against the elastic force of the elastic unit 44 and escapes from the tooth groove 222.

[0048] like Fig.11 and Fig.14 As shown, in some embodiments, the mounting frame 41 is provided with a mounting hole 1 411 that can be detachably connected to the rod body 442, and a mounting hole 2 412 that can be detachably connected to the rod body 442, the mounting hole 1 411 is located on the upper side of the tooth claw 43, and the mounting hole 2 412 is located on the lower side of the tooth claw 43, when the traction mechanism 4 is in the first state, the rod body 442 of the elastic unit 44 is inserted into the mounting hole 1 411, and when the traction mechanism 4 is in the second state, the rod body 442 of the elastic unit 44 is inserted into the mounting hole 2 412. Specifically, in this embodiment, the rod body 442 and the mounting hole 1 411 / mounting hole 2 412 are screwed together to achieve a detachable connection between the rod body 442 and the mounting hole 1 411 / mounting hole 2 412.

[0049] like Figure 7 As shown, in some embodiments, one end of the rotating shaft 42 extends out of the mounting frame 41 and is equipped with a toggle wheel 421, such as Fig.11 As shown, when the traction mechanism 4 needs to be adjusted to the first state, Fig.11 The toggle wheel 421 is toggled counterclockwise to rotate the shaft 42, so that the shaft 42 rotates and drives the tooth claw 43 to swing to the upper side of the limit stop 45, as shown in FIG. Fig.14As shown, or when it is necessary to adjust the traction mechanism 4 to be in the second state, so as to Fig.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] like Figure 1 As shown, in some of the 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 rod, so as to transmit the hammer force generated by the vibrator 1 to the drill rod for drilling.

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

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in 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 1 are arranged in an axial array along the rack on the peripheral side of the rack, and the traction mechanism comprises a mounting frame connected with the exciter, a tooth claw swingably arranged on the mounting frame, an elastic unit, and a limit stop connected with 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 1, 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 1, 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 1, and the tooth claw is pushed by the elastic force of the elastic unit to swing down and get stuck in the tooth groove 1 below.

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 circumferential side of the rack is provided with a plurality of tooth grooves 2 distributed in an axial array along the rack, the tooth grooves 2 and the tooth grooves 1 are offset from each other in the radial direction of the rack, the rack is rotatably connected to the pedal, when the rack rotates until the 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 claw is located at the lower side of the limit stop, the elastic unit always applies an elastic force to the claw to cause the claw to swing upward, and when the claw swings upward and abuts against the limit stop, the claw is retracted into the tooth groove 2.

5. The soil sampling device according to claim 4, 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.

6. The soil testing sampling device according to claim 4, characterized in that: The elastic unit comprises a pushing top, a rod body and an elastic member, the rod body is connected to the mounting frame, the pushing top is arranged at the front end of the rod body in a linear sliding manner, and the elastic member is arranged between the rod body and the pushing top.

7. The soil sampling device according to claim 6, characterized in that: The mounting frame is provided with a mounting hole 1 which can be detachably connected to the rod body, and a mounting hole 2 which 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.

8. 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.

9. 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.

10. The soil sampling device for detection according to claim 9, 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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