CN119779750B - Sampling equipment for soil testing - Google Patents
Sampling equipment for soil testing Download PDFInfo
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- CN119779750B CN119779750B CN202510286743.8A CN202510286743A CN119779750B CN 119779750 B CN119779750 B CN 119779750B CN 202510286743 A CN202510286743 A CN 202510286743A CN 119779750 B CN119779750 B CN 119779750B
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Abstract
The invention discloses sampling equipment for soil detection, and belongs to the technical field of testing. The novel vibration exciter comprises a vibration exciter, a guide rod group and a traction mechanism, wherein the guide rod group comprises a pedal and a rack, the pedal is used for being trampled by an operator, the rack is vertically arranged on the pedal, a plurality of tooth grooves I distributed along the axial array of the rack are formed in the periphery of the rack, and the traction mechanism comprises a mounting frame connected with the vibration exciter, a tooth claw and an elastic unit which are arranged on the mounting frame in a swinging manner, and a limiting stop connected with the mounting frame. The sampling equipment for soil detection can effectively save physical strength when in use.
Description
Technical Field
The invention relates to the technical field of testing, in particular to sampling equipment for soil detection.
Background
With the popularization of scientific planting technology, the acquisition of various environmental parameters of farmlands in the aspect of agricultural planting is more and more important, wherein parameters such as soil components, structures and the like are also very important reference parameters in the aspects of selecting planted crop types and planting methods, and soil sampling refers to a method for acquiring soil samples, and comprises the arrangement of sampling and sampling technology.
In order to achieve the effect of saving force, the conventional sampling equipment for soil detection is generally provided with a vibration exciter, the vibration exciter can generate up-down alternate vibration, so that the soil around a drill rod is driven to vibrate, the friction force between the drill rod and the soil is reduced, a drill bit of the drill rod continuously impacts a soil layer and goes deep downwards under the action of gravity of the equipment and downward thrust force exerted by an operator, but in the use process, the equipment can offset part of the effect of downwards impacting the soil layer when vibrating upwards due to the up-down alternate vibration of the equipment, the gravity of the equipment can be improved by adding a balancing weight to reduce the negative effect, the mobility of the equipment is obviously influenced by the weight increasing mode, so that the upward negative effect caused by the upward vibration of the equipment is generally reduced by the mode of grasping the equipment by the operator and pressing the equipment downwards, the efficiency of drilling the drill rod into the soil layer is ensured, and the mode is obviously very physical.
Therefore, it is necessary to provide a new sampling device for soil detection.
Disclosure of Invention
Based on the above problems in the prior art, an object of an embodiment of the present invention is to provide a sampling device for soil detection, which can effectively save physical strength during use.
In order to achieve the purpose, the invention adopts the technical scheme that the soil detection sampling device comprises a vibration exciter, a guide rod group and a traction mechanism, wherein the guide rod group comprises a pedal and a rack, the pedal is used for being stepped on by an operator, the rack is vertically arranged on the pedal, a plurality of tooth sockets I distributed along the axial array of the rack are arranged on the periphery of the rack, the traction mechanism comprises a mounting frame connected with the vibration exciter, a tooth claw arranged on the mounting frame in a swinging manner, an elastic unit and a limit stop connected with the mounting frame, the tooth claw is opposite to one side of the rack, which is provided with the tooth sockets I, the tooth claw is positioned on the upper side of the limit stop, the elastic unit always applies elastic force for enabling the tooth claw to swing downwards, when the tooth claw swings downwards and is propped against the limit stop, and when the mounting frame moves downwards along with the vibration of the vibration exciter so as to drive the mounting frame relative to the rack, the tooth claw resists the elastic force of the elastic unit upwards and the tooth sockets I, and enables the tooth claw to be pushed out of the elastic unit to swing into the tooth sockets I, and the elastic unit is enabled to be pushed to be blocked into the lower part.
Further, the first tooth groove is in a wedge-shaped structure, a pushing wall I is arranged on the upper side of the first tooth groove, an inclined wall I is arranged on the lower side of the first tooth groove, and a matching wall I is arranged at the front end of the tooth claw and on the first side of the tooth claw.
Further, the first side of the tooth claw is a contact side I, the matching wall I is located on the contact side I of the tooth claw, the second side of the tooth claw is a contact side II, and when the tooth claw is retracted into the tooth groove I, the contact side II of the tooth claw is opposite to the inclined wall I of the tooth groove I.
Further, a plurality of tooth grooves II which are distributed along the axial array of the rack are formed in the peripheral side of the rack, the tooth grooves II deviate from the tooth grooves I in the radial direction of the rack, the rack is rotationally connected with the pedal, when the rack rotates to the point that the tooth claw is opposite to the side, with the tooth grooves II, of the rack, when the traction mechanism is in a second state, namely, the tooth claw is located at the lower side of the limiting block, the elastic unit always applies elastic force for promoting the tooth claw to swing upwards, and when the tooth claw swings upwards and abuts against the limiting block, the tooth claw is retracted into the tooth groove II.
Further, the tooth groove II is of a wedge-shaped structure, an inclined wall II is arranged on the upper side of the tooth groove II, a pushing wall II is arranged on the lower side of the tooth groove II, a matching wall II is arranged at the front end of the tooth claw and on the second side of the tooth claw, when the traction mechanism is in a second state, the tooth claw is retracted into the tooth groove II, the matching wall II on the second side of the tooth claw is opposite to the pushing wall II of the tooth groove II, the first side of the tooth claw abuts against the limiting block, and the matching wall II is located on the contact side II of the tooth claw.
Further, the elastic unit comprises a pushing top end, a rod body and an elastic piece, wherein the rod body is connected with the mounting frame, the pushing top end is arranged at the front end of the rod body in a linear sliding mode, and the elastic piece is arranged between the rod body and the pushing top end.
Further, be equipped with on the mounting bracket can with body of rod detachable connection's mounting hole one with can with body of rod detachable connection's mounting hole two, mounting hole one is located the upside of tooth claw, install Kong Erwei in the downside of tooth claw, when traction mechanism is in the first state, the body of rod of elastic element is pegged graft in mounting hole one, when traction mechanism is in the second state, the body of rod of elastic element is pegged graft in mounting hole two.
Further, the traction mechanism further comprises a guide roller, the guide roller is in running fit on the mounting frame, and the outer peripheral wall of the guide roller is in rolling contact with the outer peripheral wall of the rack.
Further, the guide rod group further comprises a guide rod, the guide rod is parallel to the rack, one end of the guide rod is connected with the pedal, and the guide rod is in sliding fit on the vibration exciter along the axial direction of the guide rod.
Further, the vibration exciter is connected with a vibration reduction frame through a vibration reduction structure, and the installation frame is installed on the vibration reduction frame.
The beneficial effects of the invention are as follows: the invention provides sampling equipment for soil detection, which comprises a vibration exciter, a guide rod group and a traction mechanism, wherein the guide rod group comprises a pedal and a rack, the pedal is used for being stepped by an operator, a plurality of tooth sockets I which are distributed along the axial direction of the rack are arranged on the periphery of the rack, the traction mechanism comprises a mounting frame connected with the vibration exciter, tooth claws which are arranged on the mounting frame in a swinging way, an elastic unit and a limit stop connected with the mounting frame, when the traction mechanism is in a first state, namely, the tooth claws are opposite to one side of the rack with the tooth sockets I, the tooth claws are positioned on the upper side of the limit stop, the elastic unit always applies elastic force for promoting the tooth claws to swing downwards, when the tooth claws swing downwards and are propped against the limit stop, the tooth claws are retracted into the tooth sockets I, and when the mounting frame vibrates along with the vibration of the vibration exciter, the mounting frame is driven to move downwards relative to the rack, the tooth claw swings upwards against the elastic force of the elastic unit and is separated from the tooth groove I, the tooth claw pushes the lower hem to be clamped in the tooth groove I below, when the mounting frame vibrates along with the vibration of the vibration exciter to drive the mounting frame to move upwards relative to the rack, the tooth claw pushes against the tooth groove I to drive the tooth claw to swing downwards, but the tooth claw pushes against the limit block at the lower side to limit the downward swing, so that the mounting frame and the rack are relatively static, and the rack is fixed on the ground along with the pedal by an operator, the mounting frame and the vibration exciter cannot generate upward negative displacement relative to the ground under the push limit between the tooth claw, the tooth groove I and the limit block, therefore, compared with the prior art, the technical scheme avoids the negative upward movement caused by the upward vibration of the vibration exciter, and does not need the force application of the operator to push downwards, can effectively save physical strength.
Drawings
The invention is further described below with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of a sampling device for soil detection according to an embodiment of the present invention in a use state.
Fig. 2 is an exploded view of a sampling device for soil detection according to an embodiment of the present invention.
Fig. 3 is a schematic perspective view of a vibration exciter according to an embodiment of the present invention.
Fig. 4 is an exploded view of a vibration exciter according to an embodiment of the present invention.
Fig. 5 is an exploded view of a guide bar set according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a rack according to an embodiment of the present invention.
Fig. 7 is an exploded view of a traction mechanism provided by an embodiment of the present invention.
Fig. 8 is a schematic structural view of a tooth claw according to an embodiment of the present invention.
Fig. 9 is a front view of the soil testing sampling apparatus shown in fig. 1.
Fig. 10 is a sectional view taken along the direction E-E in fig. 9.
Fig. 11 is an enlarged schematic view of area a of fig. 10, showing the traction mechanism in a first state.
Fig. 12 is a view showing another use state of the sampling device for soil detection in fig. 10.
Fig. 13 is a schematic view of the soil testing sampling apparatus shown in fig. 10, with the traction mechanism shown in a second state.
Fig. 14 is an enlarged schematic view of region B of fig. 13, showing the traction mechanism in a second state.
The drawing comprises the following reference numerals of 1, a vibration exciter, 11, a switching end, 12, a vibration reduction rack, 2, a guide rod group, 21, a pedal, 22, a rack, 221, a tooth socket I, 2211, a pushing wall I, 2212, an inclined wall I, 222, a tooth socket II, 2221, a pushing wall II, 2222, an inclined wall II, 23, a guide rod, 231, a sliding seat, 3, a vibration reduction structure, 31, a pull rod, 32, a vibration reduction spring I, 33, a vibration reduction spring II, 34, a supporting plate, 4, a traction mechanism, 41, a mounting rack, 411, a mounting hole I, 412, a mounting hole II, 42, a rotating shaft, 421, a toggle wheel, 43, a tooth claw, 431, a matching wall I, 432, a matching wall II, 433, a contact side I, 434, a contact side II, 44, an elastic unit, 45, a limit stop and 46 and a guide roller.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It will be understood 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 be 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 be indirectly connected to the other element.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention.
Reference throughout this 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, the appearances of the phrases "in one embodiment," "in some embodiments," or "in some embodiments" in various places throughout this specification are not all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Referring to fig. 1 to 14, a soil testing sampling apparatus provided by the present invention will now be described, the soil testing sampling apparatus comprising a vibration exciter 1, a guide rod set 2 and a traction mechanism 4, wherein the bottom of the vibration exciter 1 is connected with a drill rod and a drill bit (not shown), the vibration exciter 1 is used for generating up-down alternate vibration, the guide rod set 2 comprises a pedal 21 and a rack 22, the pedal 21 is used for being stepped by an operator, so that the operator presses the pedal 21 to the ground by using the weight of the operator by stepping the pedal 21, the rack 22 is vertically arranged on the pedal 21, a plurality of tooth grooves 221 distributed along the axial direction array of the rack 22 are arranged on the circumference side of the rack 22, the traction mechanism 4 comprises a mounting frame 41 connected with the vibration exciter 1, a tooth claw 43 swingably arranged on the mounting frame 41, an elastic unit 44, and a limit stop 45 connected with the mounting frame 41, as shown in fig. 11, when the traction mechanism 4 is in the first state, that is, the tooth claw 43 is opposite to the side of the rack 22 with the tooth groove one 221, the tooth claw 43 is positioned on the upper side of the limit stopper 45, the elastic unit 44 always applies an elastic force for urging the tooth claw 43 to swing downwards to the tooth claw 43, when the tooth claw 43 swings downwards and abuts against the limit stopper 45, the tooth claw 43 is retracted into the tooth groove one 221, when the mounting frame 41 vibrates with the vibration of the vibration exciter 1 to drive the mounting frame 41 to move downwards relative to the rack 22, the tooth claw 43 swings upwards against the elastic force of the elastic unit 44 and is separated from the tooth groove one 221, and the tooth claw 43 swings downwards under the elastic force of the elastic unit 44 to be clamped into the tooth groove one 221, when the mounting frame 41 vibrates with the vibration of the vibration exciter 1 to drive the mounting frame 41 to move upwards relative to the rack 22, the tooth claw 43 is urged against the tooth groove one 221 to have a tendency of swinging downwards, however, since the tooth claw 43 abuts against the limiting block 45 at the lower side so as to limit downward swing, the mounting frame 41 and the rack 22 are relatively static, and since the rack 22 is fixed on the ground along with the pedal 21 by being stepped on by an operator, the mounting frame 41 and the vibration exciter 1 cannot generate upward negative displacement relative to the ground under the abutting limit among the tooth claw 43, the tooth groove I221 and the limiting block 45, and therefore, compared with the prior art, the technical scheme avoids the vibration exciter 1 from generating negative upward movement due to upward vibration, does not need to be pushed down by the operator, and can effectively save physical strength.
In some of these embodiments, the pedal 21 is located below the exciter 1.
In some embodiments, as shown in fig. 6, the first tooth slot 221 is in a wedge structure, the upper side of the first tooth slot 221 is provided with a pushing wall 2211, the lower side of the first tooth slot 221 is provided with an inclined wall 2212, as shown in fig. 8, the front end of the first tooth pawl 43 is provided with an engaging wall 431 at the first side of the first tooth pawl 43, as shown in fig. 11, when the traction mechanism 4 is in the first state and the first tooth pawl 43 is retracted into the first tooth slot 221, the engaging wall 431 at the first side of the first tooth pawl 43 abuts against the pushing wall 2211 of the first tooth slot 221, the second side of the first tooth pawl 43 abuts against the limit stop 45, and the engaging wall 431 abuts against the pushing wall 2211 during the axial movement of the rack 22 relative to the first tooth pawl 43 in the direction of the inclined wall 2212 so as to push the first tooth pawl 43 against the limit stop 45 at the lower side, and the second tooth slot 431 is pushed against the first tooth slot 43 by the elastic force of the first tooth slot 221, so as to push the first tooth pawl 43 and move upward against the first tooth slot 43, and the elastic force is applied to push the first tooth slot unit 43, and the elastic force is released.
As shown in fig. 8, in some of these embodiments, the first side of the pawl 43 is a contact side one 433 and the mating wall one 431 is located on the contact side one 433 of the pawl 43.
As shown in fig. 8, in some embodiments, the second side of the pawl 43 is a contact side two 434, when the pawl 43 is retracted into the first slot 221, the contact side two 434 of the pawl 43 is abutted against the inclined wall one 2212 of the first slot 221, and during the movement of the rack 22 in the axial direction relative to the pawl 43 in the direction of pushing the inclined wall one 2212 against the wall one 2211, the inclined wall one 2212 is abutted against the contact side two 434 of the pawl 43, so that a force tangential to the rotation axis of the pawl 43 is generated between the inclined wall one 2212 and the contact side two 434, so that the pawl 43 swings upward against the elastic force of the elastic unit 44 and is disengaged from the first slot 221.
As shown in fig. 11, in some of the embodiments, the traction mechanism 4 further includes a rotation shaft 42, the rotation shaft 42 is rotatably fitted to the mounting frame 41, and the tooth pawls 43 are connected to the rotation shaft 42 such that the tooth pawls 43 can oscillate about the axis of the rotation shaft 42 following the rotation of the rotation shaft 42.
As shown in fig. 11, in some embodiments, the elastic unit 44 includes a pushing top end 441, a rod 442, and an elastic member 443, where the rod 442 is connected to the mounting frame 41, the pushing top end 441 is slidably disposed at a front end of the rod 442 along a straight line, and the elastic member 443 is disposed between the rod 442 and the pushing top end 441, so that the pushing top end 441 can elastically stretch out and draw back on the rod 442, the pushing top end 441 faces the pawl 43, and when the traction mechanism 4 is in the first state shown in fig. 11, the pushing top end 441 abuts against an upper side of the pawl 43, so that applying an elastic force to the pawl 43 drives the pawl 43 to always have a tendency to swing downward toward the limit stop 45.
In some embodiments, as shown in fig. 7 and 11, the stopper 45 has a cylindrical structure, and the stopper 45 is parallel to the rotating shaft 42.
In addition, in order to make the sampling device for soil detection provided by the embodiment of the present invention more labor-saving when pulling out the drill pipe upwards from the soil layer, as shown in fig. 6, in some embodiments, a plurality of second tooth grooves 222 distributed along the axial array of the rack 22 are provided on the circumferential side of the rack 22, the second tooth grooves 222 are deviated from the first tooth grooves 221 in the radial direction of the rack 22, the rack 22 is rotatably connected with the pedal 21, as shown in fig. 13 and 14, when the rack 22 rotates until the tooth claw 43 is opposite to the side of the rack 22 having the second tooth grooves 222, when the traction mechanism 4 is in the second state, i.e. the tooth claw 43 is located at the lower side of the limit stop 45, the elastic unit 44 always applies an elastic force for urging the tooth claw 43 to swing upwards, when the tooth claw 43 swings upwards and abuts against the limit stop 45, the tooth claw 43 is received in the second tooth grooves 222, and when the mounting bracket 41 is driven to move upwards relative to the rack 22 by the vibration exciter 1, the tooth claw 43 swings downwards against the elastic force of the elastic unit 44 and is separated from the tooth groove II 222, the tooth claw 43 swings upwards under the elastic force of the elastic unit 44 to be clamped into the upward tooth groove I221, so that the vibration exciter 1 gradually moves upwards relative to the rack 22 to drive the drill rod to gradually move upwards to separate from the soil layer along with the vibration of the vibration exciter 1, no manual pulling out is needed by an operator, when the mounting frame 41 vibrates along with the vibration exciter 1 to drive the mounting frame 41 to move downwards relative to the rack 22, the tooth claw 43 is propped against the tooth groove I221, the upward swing of the tooth claw 43 is limited due to the fact that the tooth claw 43 is propped against the limiting block 45 on the lower side, the rack 22 and the mounting frame 41 are relatively static, the mounting frame 41 and the vibration exciter 1 cannot move downwards relative to the ground due to the fact that the rack 22 is fixed to the ground by the stepping of the operator along with the pedal 21, the phenomenon that the drill rod is driven to move downwards to affect the pulling-out of the drill rod when the vibration exciter 1 vibrates downwards is avoided, and it can be understood that the amplitude and the frequency of the vibration exciter 1 can be adjusted and reduced in order to avoid that a sample is separated from the drill rod due to the severe vibration of the vibration exciter 1.
In some embodiments, as shown in fig. 6, the tooth slot two 222 is in a wedge structure, the upper side of the tooth slot two 222 is provided with the inclined wall two 2222, the lower side of the tooth slot two 222 is provided with the pushing wall two 2221, as shown in fig. 8, the front end of the tooth claw 43 is provided with the engaging wall two 432 and the second side of the tooth claw 43 is provided with the engaging wall two 432, as shown in fig. 14, when the traction mechanism 4 is in the second state and the tooth claw 43 is retracted into the tooth slot two 222, the engaging wall two 432 on the second side of the tooth claw 43 abuts against the pushing wall two 2221 of the tooth slot two 222, the first side of the tooth claw 43 abuts against the limit stop 45, and during the movement of the rack 22 in the axial direction relative to the tooth claw 43 in the direction of the inclined wall two 2222, the engaging wall two 432 abuts against the pushing wall two 2221 so as to push the tooth claw 43 against the limit stop 45 on the upper side, and during the movement of the rack 22 in the axial direction relative to the tooth claw 43 in the direction of the inclined wall two 2222 towards the pushing wall two 2221, the tooth claw 43 abuts against the tooth claw 43, the tooth claw 2 abuts against the tooth claw 43, and the tooth slot two 22243 is pushed down against the elastic force of the tooth slot unit 222, and the tooth slot two is moved towards the upper side 22243. Specifically, the second mating wall 432 is located on the second contact side 434 of the tooth claw 43, when the tooth claw 43 is retracted into the second tooth slot 222, the first contact side 433 of the tooth claw 43 is opposite to the second inclined wall 2222 of the tooth slot 222, and during the movement of the rack 22 in the axial direction relative to the tooth claw 43 from the second inclined wall 2222 to the second pushing wall 2221, the second inclined wall 2222 is abutted against the first contact side 433 of the tooth claw 43, so that a force tangential to the rotation axis of the tooth claw 43 is generated between the second inclined wall 2222 and the first contact side 433, so that the tooth claw 43 swings downward against the elastic force of the elastic unit 44 and is disengaged from the second tooth slot 222.
As shown in fig. 11 and 14, in some embodiments, the mounting frame 41 is provided with a first mounting hole 411 capable of being detachably connected to the rod 442, and a second mounting hole 412 capable of being detachably connected to the rod 442, the first mounting hole 411 is located on the upper side of the tooth claw 43, the second mounting hole 412 is located on the lower side of the tooth claw 43, when the traction mechanism 4 is in the first state, the rod 442 of the elastic unit 44 is inserted into the first mounting hole 411, and when the traction mechanism 4 is in the second state, the rod 442 of the elastic unit 44 is inserted into the second mounting hole 412. Specifically, in the present embodiment, the rod 442 is screwed to the first mounting hole 411/the second mounting hole 412, so as to detachably connect the rod 442 to the first mounting hole 411/the second mounting hole 412.
In some embodiments, as shown in fig. 7, one end of the rotating shaft 42 extends out of the mounting frame 41 to install a poking wheel 421, as shown in fig. 11, when the traction mechanism 4 needs to be adjusted in the first state, the poking wheel 421 is poked in the counterclockwise direction in fig. 11 to rotate the rotating shaft 42, so that the rotating shaft 42 rotates and drives the tooth claw 43 to swing to be located on the upper side of the limit stop 45, as shown in fig. 14, or when the traction mechanism 4 needs to be adjusted in the second state, the poking wheel 421 is poked in the clockwise direction in fig. 14 to rotate the rotating shaft 42, so that the rotating shaft 42 rotates and drives the tooth claw 43 to swing to be located on the lower side of the limit stop 45.
As shown in fig. 7, in some embodiments, the traction mechanism 4 further includes a guide roller 46, the guide roller 46 is rotatably fitted on the mounting frame 41, and an outer circumferential wall of the guide roller 46 is in rolling contact with an outer circumferential wall of the rack 22 to perform a guiding function on the rack 22 in an axial direction of the rack 22, so that the rack 22 moves linearly in the axial direction with respect to the mounting frame 41 of the traction mechanism 4. Specifically, the guide rollers 46 have a plurality, a plurality of guide rollers 46 are provided around the circumferential side of the rack 22, and the plurality of guide rollers 46 are spaced apart in the axial direction of the rack 22.
As shown in fig. 5, in some embodiments, the guide rod set 2 further includes a guide rod 23, where 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 to the vibration exciter 1 along the axial direction of the guide rod 23. Specifically, the exciter 1 is provided with a slide seat 231, and the guide rod 23 is slidably mounted on the slide seat 231.
As shown in fig. 5, in some embodiments, the guide rod set 2 includes two guide rods 23 and two racks 22, where the two guide rods 23 are diagonally distributed and the two racks 22 are diagonally distributed, so that the guide rod set 2 is in a force balance.
As shown in fig. 3 and 4, in some embodiments, the vibration exciter 1 is connected to the vibration reduction frame 12 through the vibration reduction structure 3, and the mounting frame 41 and the sliding seat 231 are mounted on the vibration reduction frame 12 to reduce the amplitude of the vibration transmitted from the vibration exciter 1 to the vibration reduction frame 12, reduce the influence of vibration when an operator manipulates the vibration reduction frame 12, and reduce the vibration transmitted from the vibration exciter 1 to the traction mechanism 4.
As shown in fig. 3 and 4, in some embodiments, the damping structure 3 includes a pull rod 31, a first damping spring 32, a second damping spring 33, and a supporting plate 34, where the damping frame 12 is located above the vibration exciter 1, the pull rod 31 is connected to the damping frame 12, the supporting plate 34 is connected to the pull rod 31, the first damping spring 32 elastically abuts between the damping frame 12 and the vibration exciter 1, the first damping spring 32 is compressed when the vibration exciter 1 moves up, the second damping spring 33 elastically abuts between the vibration exciter 1 and the supporting plate 34, and the second damping spring 33 is compressed when the vibration exciter 1 moves down.
As shown in fig. 1, in some embodiments, a bottom of the exciter 1 is provided with a connection end 11, and the connection end 11 is used for connecting a drill rod, so as to transmit hammering force generated by the exciter 1to the drill rod for drilling.
The vibration exciter 1 is a mature technology in the prior art, so the description is not repeated here.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (7)
1. A sampling device for soil detection, characterized in that: the device comprises a vibration exciter, a guide rod group and a traction mechanism, wherein the guide rod group comprises a pedal and a rack, the pedal is used for being stepped by an operator, the rack is vertically arranged on the pedal, a plurality of tooth grooves I which are distributed along the axial array of the rack are arranged on the periphery of the rack, the traction mechanism comprises a mounting frame connected with the vibration exciter, tooth claws which are arranged on the mounting frame in a swinging manner, an elastic unit and a limit stop connected with the mounting frame, when the traction mechanism is in a first state, namely, the tooth claws are opposite to one side of the rack, which is provided with the tooth grooves I, the tooth claws are positioned on the upper side of the limit stop, the elastic unit always applies elastic force for promoting the tooth claws to swing downwards, when the tooth claws swing downwards and are propped against the limit stop, the tooth grooves of the tooth claws are retracted into the first rack, and when the mounting frame is driven to move downwards relative to the rack along with the vibration of the vibration exciter, the tooth claw swings upwards against the elastic force of the elastic unit and is separated from the tooth groove I, the tooth claw pushes the lower hem to be clamped in the tooth groove I below, a plurality of tooth grooves II which are distributed along the axial array of the rack are arranged on the periphery of the rack, the tooth grooves II deviate from the tooth grooves I in the radial direction of the rack, the rack is rotationally connected with the pedal, when the rack rotates to the state that the tooth claw is opposite to the side of the rack with the tooth grooves II, when the traction mechanism is in a second state, namely the tooth claw is positioned at the lower side of the limiting block, the elastic unit always applies the elastic force for pushing the tooth claw to swing upwards, when the tooth claw swings upwards and is propped against the limiting block, the tooth claw is retracted into the tooth grooves II, the elastic unit comprises a pushing top end, a rod body and an elastic piece, the rod body is connected with the mounting frame, and the pushing top end is arranged at the front end of the rod body in a linear sliding mode, the elastic component sets up between the body of rod and promote the top, be equipped with on the mounting bracket can with the body of rod can dismantle the mounting hole one of being connected, and can with the body of rod can dismantle the mounting hole two of being connected, the mounting hole one is located the upside of tooth claw, installs Kong Erwei in the downside of tooth claw, when traction mechanism is in the first state, the body of rod of elastic element is pegged graft in the mounting hole one, when traction mechanism is in the second state, the body of rod of elastic element is pegged graft in the mounting hole two.
2. The sampling device for soil detection according to claim 1, wherein the first tooth groove has a wedge-shaped structure, a pushing wall is arranged on the upper side of the first tooth groove, an inclined wall is arranged on the lower side of the first tooth groove, and a matching wall is arranged at the front end of the tooth claw and on the first side of the tooth claw.
3. The sampling device for soil testing according to claim 2, wherein the first side of the claw is a contact side I, the mating wall I is located on the contact side I of the claw, the second side of the claw is a contact side II, and when the claw is received in the tooth slot I, the contact side II of the claw is opposite to the inclined wall I of the tooth slot I.
4. The sampling device for soil detection according to claim 3, wherein the second tooth slot has a wedge-shaped structure, an inclined wall II is arranged on the upper side of the second tooth slot, a pushing wall II is arranged on the lower side of the second tooth slot, a matching wall II is arranged 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, the matching wall II on the second side of the tooth claw is opposite to the pushing wall of the second tooth slot when the tooth claw is retracted into the second tooth slot, the first side of the tooth claw is abutted to the limiting block, and the matching wall II is positioned on the contact side II of the tooth claw.
5. The sampling device for soil detection according to claim 1, wherein the traction mechanism further comprises a guide roller rotatably fitted to the mounting frame, and an outer peripheral wall of the guide roller is in rolling contact with an outer peripheral wall of the rack.
6. The sampling device for soil detection according to claim 1, wherein the guide rod group further comprises a guide rod, the guide rod is parallel to the rack, one end of the guide rod is connected with the pedal, and the guide rod is slidably matched with the vibration exciter along the axial direction of the guide rod.
7. The sampling device for soil test according to claim 6, wherein the vibration exciter is connected to a vibration damper through a vibration damper structure, and the mounting frame is mounted on the vibration damper.
Priority Applications (1)
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