CN111982583A - Multifunctional agricultural storage sampling tube - Google Patents

Abstract

The invention provides a multifunctional agricultural storage sampling tube, wherein a telescopic rod comprises a plurality of pairs of female sections and male sections which are in socket fit with each other, the male sections are inserted into the female sections in an axial sliding fit manner, the inner wall of a cylindrical hole of the female sections, into which the male sections are inserted, is provided with a circle of annular groove, and the bottom of each annular groove is provided with a counter bore which penetrates through the side wall of the female section; a vertical sliding groove intersected with all the annular grooves is further formed in the inner wall of the cylindrical hole along the depth direction of the cylindrical hole; the collecting part is fixedly connected to the telescopic rod; the lateral wall of the tip of the collecting part is provided with a strip-shaped sampling hole for grain to leak into, two opposite hole walls of the sampling hole are respectively hinged with a swing rod, the part between the two ends of the first driven rod is hinged with a driving rod arranged in the collecting part, and the driving rod can reciprocate in the collecting part along the axis direction of the driving rod. The multifunctional agricultural storage sampling tube has the advantages of simple and compact structure, adjustable length, easy use and capability of fully sampling in deeper grain piles.

Description

Multifunctional agricultural storage sampling tube

Technical Field

The invention relates to an auxiliary tool in grain farmer detection, in particular to a multifunctional agricultural storage sampling tube.

Background

The sampling tube is a commonly used agricultural auxiliary detection tool, is used more particularly in granaries and the like, is mainly a stainless steel tube, has a sharp top and an opening, and when the sampling tube is pierced, grains fall into the sampling tube from the opening to realize sampling. Or a hole is arranged on the side wall of the sampling tube for the penetrated grains to fall into, so as to realize sampling. At present, the two sampling tubes are mostly integrally formed stainless steel tubes, the depth is limited when the sampling tubes are inserted, and if the sampling tubes are integrally formed, the sampling tubes are too long in length and inconvenient for detection personnel to carry, so that a better sampling tube with adjustable length is urgently needed to be designed. In addition, although these two kinds of sampling tubes are simple easily to be made, have a very big shortcoming, that is exactly pierce the grain and pile the back, because grain piles internal pressure is great, in fact many times grain can not fall into in the sampling tube naturally, cause the skewing difficulty, the sampling effect is unsatisfactory, consequently, await urgent need to design a kind of multi-functional agricultural storage sampling tube that can carry out abundant sample in darker grain piles.

Disclosure of Invention

The invention aims to solve the problems that the multifunctional agricultural storage sampling tube is constant in length, cannot realize deep sampling, is inconvenient to carry and use due to overlong integral forming and cannot perform deep grain sampling in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

a multifunctional agricultural storage sampling tube comprises a sharp-end collecting part for inserting a grain pile and a telescopic rod for fixedly connecting the collecting part, wherein the telescopic rod comprises a plurality of pairs of female joints and male joints which are in socket fit with each other, the male joints are inserted into the female joints in an axial sliding fit manner, jacks for the male joints to be inserted into the female joints are cylindrical holes, a plurality of rings of annular grooves which are parallel to each other are arranged on the inner wall of each cylindrical hole, the axes of all the annular grooves are coaxial with the axis of the cylindrical hole, and a counter bore which penetrates through the side wall of the female joint is formed at the bottom of each annular groove; a vertical sliding groove intersected with all the annular grooves is further formed in the inner wall of the cylindrical hole along the depth direction of the cylindrical hole; a seat hole is formed in the outer side wall of the sub-section along the radial direction of the sub-section, a top spring is installed in the seat hole, the free end of the top spring is connected with a sliding tongue which can be in plug fit with the counter bore, and the sliding tongue cannot completely slide out of the seat hole all the time when the top spring is connected; the structural size relation of the vertical sliding groove, the annular groove, the sliding tongue and the seat hole is required to meet the following requirements: when the sliding tongue slides in the vertical sliding groove to guide the secondary section to move axially in the primary section, the secondary section is rotated circumferentially when the sliding tongue slides to the intersection of the annular groove and the vertical sliding groove, the sliding tongue enters the annular groove to slide, and is clamped in the seat hole due to the elastic force of the top spring when the sliding tongue slides to the seat hole.

In addition, the collecting part is of a hollow tubular structure, a strip-shaped sampling hole for grain to leak is formed in the side wall close to the tip end of the collecting part, two opposite hole walls of the sampling hole are respectively hinged with a swing rod, the two swing rods are arranged in opposite directions and in a crossed manner, the two swing rods are hinged together at the crossed point through a hinge pin shaft which simultaneously penetrates through the two swing rods, the hinge pin shaft is hinged with the top end of a first driven rod positioned in the collecting part through a connecting rod positioned below the hinge pin shaft and extending into the sampling hole, the bottom end of the first driven rod is hinged on the inner wall of the collecting part and is opposite to the crossed point, the part between the two ends of the first driven rod is hinged with a driving rod arranged in the collecting part, and the driving rod can reciprocate in the collecting part along the axis direction of the driving rod; first driven lever leans on its bottom department still to articulate the one end of second driven lever, and the other end of second driven lever articulates there is a sliding strip, sliding strip is located the inner wall of collection portion and sliding fit with it, and the one end rigid coupling that the sliding strip deviates from the second driven lever has the push pedal of a vertical setting, so that when the initiative pole removed towards the most advanced of collection portion, the connecting rod was with two pendulum rods towards the outside jack-up of collection portion, just the push pedal promotes towards most advanced one side of collection portion. For the driving of the driving rod in the present invention, as shown in fig. 12, the other end of the driving rod 8 can also be directly slid through the telescopic rod 2, that is, the telescopic rod 2 is strung on the driving rod 8, the free end of the driving rod 8 is fixedly connected in a handle 14 slidably sleeved on the handle 1 at the end of the telescopic rod 2, so that after the length of the telescopic rod 2 is adjusted in place, the handle 14 can be held to push the driving rod 2 to move, and here, a separable socket structure is formed between the handle 14 and the handle 1. This active lever 8 also can adopt telescopic structure to accomodate this sampling tube as far as possible, its telescopic structure can even consider the telescopic structure of selecting this telescopic link 2 according to the actual size demand.

In specific implementation, preferably, the invention is based on the above structure, and may further have another alternative design structure, the main difference of which is that only one annular groove is designed, the depth of the vertical sliding groove is greater than that of the annular groove, the insertion hole is further provided with an annular transition sliding groove with a depth consistent with that of the vertical sliding groove, the transition sliding groove and the annular groove are arranged at the upper end and the lower end of the female joint, the transition sliding groove is communicated with the hole of the counter bore through a wedge-shaped sliding groove with a gradually-reduced depth in the direction close to the annular groove, the sliding tongue is a boss with a cylindrical step shape, a larger section of the boss is connected with the top spring and is in sliding fit with the seat bore to always slide out of the seat bore incompletely, and the end face of a smaller section of the boss is provided with a conical blind hole; when in use, the connection and fixation relationship between the corresponding female joint and the corresponding sub-joint can be released only by pressing the sliding tongue back to the counter bore. On the basis of the structure, the sliding bolt is characterized by further comprising a drum-shaped elastic ring sleeved on the female rod, the inner wall of the elastic ring is convexly provided with a convex column which is arranged in the counter bore and is in sliding fit with the counter bore, a sliding pin with a conical end part is telescopically arranged in the convex column, the sliding pin can extend into the conical blind bore to clamp the sliding bolt, and when the outer wall of the elastic ring is pressed or held, the convex column pushes the sliding bolt out of the counter bore towards the inner side of the female joint.

Of course, the boss structures and the matching structures of the transition sliding chute, the wedge-shaped sliding chute and the sliding tongue can be matched with the structures of the annular grooves for use, and the design can be selected by a person skilled in the art. In a specific implementation, particularly, the elastic ring is coaxially and fixedly sleeved at a corresponding position of a lower female joint which is used as a female joint and a sub-joint, and the convex column which is convexly arranged along the radial direction of the elastic ring extends into one end of the counter bore, which faces the outer side of the lower female joint, in a sliding fit manner, and the maximum diameter of the outer wall of the elastic ring needs to enable the elastic ring of the lower female joint to be completely accommodated in the upper female joint when the upper female joint matched with the lower female joint retracts.

Furthermore, the shape of the push plate is consistent with the shape of the cross section of the inner hole of the collecting part so as to seal the tube hole of the collecting part, and the push plate is positioned outside the sampling hole and close to the tip when the driving rod does not move towards the tip of the collecting part; the tip of the collecting part is in a closed conical shape. In addition, the present invention may adopt the following design for the above-mentioned active rod to reciprocate in the collecting part along the axial direction thereof: the collecting part is fixedly arranged on the telescopic rod through a cylinder, and an output shaft of the cylinder is fixedly connected with the driving rod.

As another design of the push plate, the area of the push plate is smaller than the cross section of the inner hole of the collecting part, and preferably smaller than two thirds of the cross section of the inner hole, and when the driving rod does not move towards the tip of the collecting part, the push plate is positioned below the sampling hole, and the tip of the collecting part is an open wedge-shaped end surface. On the basis of the design structure of the push plate, an ejector rod is fixedly connected to one side, facing the tip end of the collecting part, of the push plate, and the end, extending out of the tip end of the collecting part, of the ejector rod is in an equal-flat waist triangular shape, so that when the push plate moves towards the tip end of the collecting part, the ejector rod extends out of an opening, facing the tip end of the collecting part, of the ejector rod and then penetrates into a grain pile.

Compared with the prior art, the invention has the following beneficial effects: this multi-functional agricultural storage sampling tube structure is pipy pole type structure equally, and preparation low cost nevertheless has better elasticity, and compact structure and ingenious can adjust the length of sampling tube comparatively in a flexible way, adapts to the detection sample of the grain of the different degree of depth, is particularly useful for the grain sample of deeper department, owing to itself can contract, and the personnel of being convenient for carry about when patrolling and examining routinely. Simultaneously, this collection portion of multi-functional agricultural warehouse storage sampling tube mainly is through the most advanced removal of initiative pole towards collection portion, make two articulated pendulum rods jack-up outside the thief hole, extrude grain, make grain collapse and get into in the thief hole, solve because the grain piles that the internal pressure is too big the problem that the back grain did not drop or drop less after collection portion pierces, and, can also be when two pendulum rods by rotatory whole sampler when jack-up, carry out local stirring to grain heap inside, let the local grain in the grain heap loose, realize a large amount of samplings of grain, be particularly useful for the grain sampling of deeper department.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic structural diagram of one embodiment of the present invention;

FIG. 2 is a partial longitudinal cross-sectional view of the acquisition portion;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a partial structure enlarged view of the multifunctional agricultural storage and sampling tube with an elastic ring;

FIG. 5 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 6 is a partial longitudinal cross-sectional view of the female segment at the location B-B in FIG. 5;

FIG. 7 is an enlarged view of the oval area of FIG. 5;

FIG. 8 is another partial longitudinal cross-sectional view of the female segment at the location B-B in FIG. 5;

FIG. 9 is another enlarged structural view of the oval area of FIG. 5;

FIG. 10 is a schematic view of an initial position of the push plate;

fig. 11 is a schematic view of the ram end.

Fig. 12 is a driving structure view of the active lever.

The sampling device comprises a handle 1, a telescopic rod 2, a female joint 201, a vertical sliding groove 2011, an annular groove 2012, a counter bore 2013, a transition sliding groove 2014, a wedge-shaped sliding groove 2015, a sub-joint 202, a sliding tongue 203, a top spring 204, an elastic ring 205, a sliding pin 206, a pin 207, a cylinder 3, a collecting part 4, a sampling hole 401, a swing rod 5, a connecting rod 6, a first driven rod 7, a driving rod 8, a second driven rod 9, a sliding strip 10, a push plate 11, a push rod 12, a compressed air pipeline 13 and a handle 14.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the functions of the invention clearer and easier to understand, the invention is further explained by combining the drawings and the detailed implementation mode:

the embodiment provides a multi-functional agricultural storage sampling tube, including the sharp-pointed collection portion of tip that is used for inserting the grain heap and the telescopic link that is used for the rigid coupling collection portion. In particular, during manufacturing, the telescopic rod 2 of the present embodiment adopts the following structure: as shown in fig. 4-6, the telescopic rod 2 comprises a plurality of pairs of female segments 201 and male segments 202 which are in socket fit with each other, and are all of a round tubular structure, the male segments 202 are inserted into the female segments 201 in an axial sliding fit manner, the female segments 202 and the male segments 201 are not absolute, and a part of the female segments 201 are used for inserting the male segments 202 but can be simultaneously inserted into another larger female segment 201, namely an upper female segment, which is used as a lower female segment. The jack of the female joint 201 for the insertion of the secondary joint 202 is a cylindrical hole, a plurality of rings of annular grooves 2012 parallel to each other are arranged on the inner wall of the cylindrical hole, the axes of all the annular grooves 2012 are coaxial with the axis of the cylindrical hole, and a counter bore 2013 penetrating through the side wall of the female joint 201 is formed in the bottom of each annular groove 2012. A vertical sliding groove 2011 intersecting with all the annular grooves 2012 is further formed on the inner wall of the cylindrical hole along the depth direction of the cylindrical hole. As shown in fig. 9, a seat hole is formed in the outer side wall of the sub-section 202 along the radial direction, a top spring 204 is installed in the seat hole, the free end of the top spring 204 is connected with a sliding tongue 203 which can be in insertion fit with the counter bore 2013, the sliding tongue 203 can be made into a ball head shape so as to slide in and out, the larger hole section of the counter bore which is matched with the sliding tongue is an arc-shaped concave hole, the radian of the arc-shaped concave hole is matched with the ball head end of the sliding tongue, and the sliding tongue 203 can slide in the arc-shaped concave hole but cannot slide out in the circumferential direction when sliding in the circumferential direction in the annular groove. The sliding tongue 203 cannot always slide out of the seat hole completely under the connection of the top spring 204, i.e. is always mounted in the seat hole. The structural dimension relationship among the vertical sliding groove 2011, the annular groove 2012, the sliding tongue 203 and the seat hole of the present embodiment must satisfy the following condition: when the sliding tongue 203 slides in the vertical sliding groove 2011 to guide the sub-section 202 to move axially in the main section 201, when the sliding tongue 203 slides to the intersection of the annular groove 2012 and the vertical sliding groove 2011, the sub-section 202 is rotated circumferentially, then the motion track of the sliding tongue 203 is changed, the sliding tongue 203 is changed to enter the annular groove 2012 to slide, namely, at the moment, the sub-section 202 is held by a hand to rotate, and when the sliding tongue 203 slides into the seat hole, the sliding tongue 203 is instantly clamped in the seat hole due to the elastic force of the top spring 204, so that the sub-section 202 is fixed at a certain position inside the main section 201. During manufacturing, in order to more intuitively know the approximate position of the sub-section 202 inserted into the main section 201, scale marks may be provided on the outer wall of the sub-section 202, each scale mark corresponds to the intersection position of one of the annular grooves 2012 and the vertical sliding groove 2011, and thus, it may be determined which annular groove 2012 the sub-section 202 is approximately inserted into according to the scale marks. A shallow groove slightly shallower than the vertical sliding groove 2011 and the annular groove 2012 can be processed at the intersection, so that the sliding tongue 203 has a clamping and stagnation feeling when sliding to the intersection, and the sliding tongue 203 can be twisted to rotate in time to switch the movement route of the sliding tongue 203. The telescopic rod 2 and the vertical sliding groove 2011 are used for adjusting the stretching length, the annular groove 2012 at the corresponding position is used for the sliding tongue 203 to rotate to the position with the set length, and the sliding tongue 203 is matched with the counter bore 2013 to realize the fixed connection between the female joint 201 and the sub-joint 202 at the position with the set length.

On the basis of the telescopic rod 2, the collecting part of the embodiment can be designed and manufactured according to the following structure: as shown in fig. 1, the collecting part 4 comprises a sharp end part for inserting into the grain pile, and the collecting part 4 is fixedly connected with the last section of the telescopic rod 2. As shown in fig. 2, the collecting part 4 is a hollow tubular structure, a strip-shaped sampling hole 401 for grain to leak into is formed on the side wall near the tip end of the collecting part, two opposite hole walls of the sampling hole 401 are respectively hinged with a swing rod 5, the two swing rods 5 are arranged oppositely and crossly, and are hinged together at the intersection point through a hinge pin (not shown in the figure) which simultaneously penetrates through the two swing rods 5, the hinge pin is hinged with the top end of a first driven rod 7 in the collecting part 4 through a connecting rod 6 which is positioned below the hinge pin and extends into the sampling hole 401, the bottom end of the first driven rod 7 is hinged on the inner wall of the collecting part 4 and is opposite to the intersection point, the part between the two ends of the first driven rod 7 is hinged with a driving rod 8 arranged in the collecting part 4, and the driving rod 8 can reciprocate in the collecting part 4 along the axis direction. First driven lever 7 still articulates by its bottom department has the one end of second driven lever 9, and the other end of second driven lever 9 articulates there is a sliding strip 10, sliding strip 10 is located collection portion 4's inner wall and with it sliding fit, and the one end rigid coupling that sliding strip 10 deviates from second driven lever 9 has the push pedal 11 of a vertical setting, so that when driving lever 8 removed towards the most advanced of collection portion 4, connecting rod 6 was with two pendulum rods 5 towards the jack-up in the 4 outside of collection portion, just push pedal 11 promotes towards the most advanced one side of collection portion 4. In the multifunctional agricultural storage sampling tube provided by the embodiment, when the multifunctional agricultural storage sampling tube is used, the telescopic rod 2 is firstly stretched in place, the tip of the acquisition part 4 is penetrated into the preset depth position in a grain stack, then a small part of grains can fall from the sampling hole 401, in order to improve the grain acquisition amount, the driving rod 8 can be driven by an external member to move towards the tip of the acquisition part 4, so that the first driven rod 7 drives the connecting rod 6 to jack the two hinged swing rods 5 towards the outside of the sampling hole 401, the grains are squeezed to collapse and enter the sampling hole 401, the problem that the grains do not fall or fall less after the acquisition part 4 is penetrated when the internal pressure of the grain stack is too high is solved, in addition, the whole sampling tube can be rotated when the two swing rods 5 are jacked, the local stirring is carried out in the grain stack, the local grains in the grain stack are loosened, and can fall off in a large amount more easily, and further realize the large amount of grain sampling, the method is extremely effective for sampling deeper grains.

Further, in this embodiment, for the above-mentioned clamping connection between the female joint 201 and the male joint 202, there may be another alternative design structure, and the main difference is that, as shown in fig. 8, only one annular groove 2012 is designed, which is mainly suitable for the requirement of one-time adjustment with large length change, the depth of the vertical sliding groove 2011 is greater than that of the annular groove 2012, and the receptacle further has an annular transition sliding groove 2014 whose depth is the same as that of the vertical sliding groove 2011, the transition sliding groove 2014 and the annular groove 2012 are respectively arranged at the upper and lower ends of the female joint 201, and the annular groove 2012 at the lower end, i.e., the rotation guide groove of the tongue 203 when the female joint 201 and the male joint 202 are facilitated. And, the transition chute 2014 is communicated with the hole of the counter bore 2013 through a wedge-shaped chute 2015 with the depth gradually becoming shallow in the direction close to the annular groove 2012, namely, a chute with the depth gradually becoming shallow from top to bottom in the vertical direction. The sliding tongue 203 is a boss in a cylindrical step shape, a larger section of the boss is connected with the top spring 204 and is in sliding fit with the seat hole to not completely slide out of the seat hole all the time, and a conical blind hole is formed in the end face of a smaller section of the boss. In the above-mentioned structure, the depth of the vertical sliding groove 2011 is greater than the depth of the annular groove 2012 mainly in view of labor saving when the telescopic rod 2 is elongated, and the deeper vertical sliding groove 2011 and the transition sliding groove 2014 are taken as the path grooves for moving the sliding tongue 203 to the counterbore 2013 of the corresponding annular groove 2012, compared with the foregoing structure, a user can prefer that, when the sub-section 202 is received, the sliding tongue 203 on the sub-section 202 slides upwards in the vertical sliding groove 2011 to receive and retract the sub-section 202, then when the sub-section 202 is extended, the sliding tongue 203 slides into the wedge-shaped sliding groove 2015 quickly and effortlessly in the transition sliding groove 2014 which is equally deeper, and then the sub-section 202 is pulled downwards to slide downwards along the wedge-shaped sliding groove 2015 gradually from loose to tight to slide into the counterbore 2013 and is instantly snapped into the counterbore 2013, and the tapered wedge-shaped groove provides enough energy for the spring 204 to accumulate, when the clamping device is clamped into the counter bore 2013, the clamping device is quicker, more timely and more reliable, and the clamping device is tighter.

Given the above design of the snap-fit structure of the sliding tongue 203 and the counter bore 2013, it is preferable that, as shown in fig. 1, the sliding tongue 203 further comprises a drum-shaped elastic ring 205 sleeved on the female rod, and referring to fig. 7, the inner wall of the elastic ring 205 is convexly provided with a convex column which is arranged in the counter bore 2013 and is in sliding fit with the same, a sliding pin 206 with a conical end is telescopically arranged in the convex column, the sliding pin 206 can extend into the conical blind hole to block the sliding tongue 203, when the outer wall of the elastic ring 205 is pressed or held, the convex column pushes the sliding tongue 203 out of the counter bore 2013 towards the inner side of the female joint 201, and it is more convenient to release the snap-fit relationship between the female joint 201 and the male joint 202.

Of course, the above-mentioned transition chute 2014, wedge-shaped chute 2015, and boss structure of the tongue 203 and their matching structure can be used in combination with the structure of the plurality of annular grooves 2012, and the above-mentioned structure is adopted for the uppermost annular groove 2012, and the rest still realizes clamping in a manner of directly sliding the tongue 203 into the counter bore 2013 from the annular chute. In specific implementation, as shown in fig. 4, the elastic ring 205 is coaxially and fixedly sleeved at a corresponding position of a lower female joint serving as both the female joint 201 and the sub-joint 202, and the convex column protruding in the radial direction thereof is made to extend into one end of the counter bore 2013 facing the outer side of the lower female joint in a sliding fit manner, the maximum diameter of the outer wall of the elastic ring 205 is such that the elastic ring 205 can be completely accommodated into the upper female joint when the lower female joint is retracted into the upper female joint matched with the lower female joint, and since the elastic ring 205 can also be elastically accommodated, the structural design can fully utilize the length of the female joint 201, and design the corresponding counter bore 2013 at a position where the length of the telescopic rod 2 is lengthened as much as possible.

Further, referring to fig. 10, the shape of the push plate 11 is consistent with the cross-sectional shape of the inner hole of the collecting part 4, so as to close the tube hole of the collecting part 4, and when the driving rod 8 has not moved toward the tip of the collecting part 4, the push plate 11 is located outside the sampling hole 401 at a position close to the tip; the tip of the collecting part 4 is in a closed conical shape. When using, the confined pointed end can improve the piercing force, pricks into darker grain heap layer, and push pedal 11 is unanimous with the hole cross sectional shape of collection portion 4, can carry out the shutoff to 4 holes of collection portion of sampling hole 401 below for when empting out the grain of collection from sampling hole 401, concentrate more rapidly, grain removes towards sampler pointed end one side when avoiding taking a sample, and causes and empties the sample difficulty. In addition, the present invention may adopt the following design for the above-mentioned active rod 8 to reciprocate in the axial direction of the collecting part 4: like figure 2, fix collection portion 4 on telescopic link 2 through the installation of a cylinder 3, the output shaft and the 8 rigid couplings of initiative pole of cylinder 3, simple and reliable, corresponding pneumatic pipeline can install in telescopic link 2, both can not interfere along with telescopic link 2 transform length, can provide enough power sample again, even if the sample of deep grain heap also can realize smoothly again.

Of course, the push plate 11 may have another design, which is different from the inner hole of the acquisition part 4 adapted to the shape of the push plate 11, as shown in fig. 2, the area of the push plate 11 is smaller than the cross section of the inner hole of the acquisition part 4, and preferably smaller than two thirds of the cross section of the inner hole, and when the driving rod 8 does not move toward the tip of the acquisition part 4, the push plate 11 is located below the sampling hole 401, and the tip of the acquisition part 4 is an open wedge-shaped end surface, so that the tip is also used for sampling at the same time during sampling, and because the tip is open, the sample can be poured not only from the sampling hole 401, but also can be directly poured from the tip, so that a slightly smaller push plate 11 is designed to continuously push the grain toward the tip side in the area below the sampling hole 401 of the acquisition part 4, so that the sampling hole 401 cannot be continuously sampled because of the grain accumulation. The structure can carry out one-time mass sampling.

Further, on the basis of the design structure of the push plate 11, with reference to fig. 2 and 11, a push rod 12 is fixedly connected to one side of the push plate 11, which faces the tip of the collecting part 4, and one end of the push rod 12, which can extend out of the tip of the collecting part 4, is in an equal-flat waist-triangular shape, so that when the push plate 11 moves towards the tip of the collecting part 4, the push rod 12 extends out of an opening of the tip of the collecting part 4 and then penetrates into a grain pile, which has a positive effect on improving the tip sampling amount of the collecting part 4 under deep grain pile, and the end of the triangular push rod 12 can continuously penetrate into the grain pile, so that grains roll down into the tip of the collecting part 4 and then enter into the collecting part 4, thereby.

As a specific implementation detail, as shown in fig. 2, a waist hole is respectively formed at the intersection of the swing rods 5 in this embodiment, the length direction of the waist hole is the same as the length direction of the swing rod 5, and the hinge pin simultaneously extends into the two waist holes and can move in the waist holes, so that the lifting of the swing rod 5 is more flexible and reliable. Meanwhile, the hinge pin shaft comprises an external roller (not shown in the figure) and a mandrel (not shown in the figure) which is coaxial with the roller and is in running fit with the roller, and the end part of the mandrel is fixedly connected with the top end of the connecting rod 6. Preferably, as shown in fig. 3, the cross section of the swing rod 5 is a diamond shape, so that the swing rod 5 is in a double-edge sword-shaped structure, and the sword point of the swing rod faces the pipe wall facing the sampling hole 401, so that grains in the grain pile can be conveniently scraped; in order to increase the amount of the grains scraped, the swing rods 5 comprise two pairs which are arranged in a cross mode, the two pairs of swing rods 5 are respectively hinged to two sides of the sampling hole 401, and the free ends of the swing rods 5 are of a cutter point-shaped wedge-shaped structure.

In addition, the push plate 11 of this embodiment is perpendicular to the sliding bar 10, the bottom surface of the sliding bar 10 is slidably connected in the collecting part 4 through a guide block located in a groove on the inner wall of the collecting part 4, and the cross section of the sliding bar 10 is arc-shaped consistent with the radian of the inner wall of the collecting part 4, so that the sliding bar 10 can stably slide, the push plate 11 is better pushed, and the stability and reliability of the rotation of the first driven rod 7 are also maintained.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (4)

1. The utility model provides a multi-functional agricultural storage sampling tube, includes the sharp-pointed collection portion of tip that is used for inserting the grain heap and the telescopic link that is used for the rigid coupling collection portion, its characterized in that: the telescopic rod comprises a plurality of pairs of female sections and male sections which are in socket fit with each other, the male sections are inserted into the female sections in an axial sliding fit mode, jacks for the male sections to be inserted into are cylindrical holes in the female sections, a plurality of rings of annular grooves which are parallel to each other are arranged on the inner wall of each cylindrical hole, the axes of all the annular grooves are coaxial with the axis of each cylindrical hole, and a counter bore which penetrates through the side wall of the female section is formed in the bottom of each annular groove; a vertical sliding groove intersected with all the annular grooves is further formed in the inner wall of the cylindrical hole along the depth direction of the cylindrical hole; a seat hole is formed in the outer side wall of the sub-section along the radial direction of the sub-section, a top spring is installed in the seat hole, the free end of the top spring is connected with a sliding tongue which can be in plug fit with the counter bore, and the sliding tongue cannot completely slide out of the seat hole all the time when the top spring is connected; the structural size relation of the vertical sliding groove, the annular groove, the sliding tongue and the seat hole is required to meet the following requirements: when the sliding tongue slides in the vertical sliding groove to guide the secondary section to axially move in the primary section, when the sliding tongue slides to the intersection of the annular groove and the vertical sliding groove, the secondary section is circumferentially rotated, the sliding tongue enters the annular groove to slide, and when the sliding tongue slides to the seat hole, the sliding tongue is clamped in the seat hole due to the elastic force of the top spring;

the collecting part is of a hollow tubular structure, a strip-shaped sampling hole for grain to leak is formed in the side wall close to the tip end of the collecting part, two opposite hole walls of the sampling hole are respectively hinged with a swing rod, the two swing rods are arranged in an opposite and crossed mode, the two swing rods are hinged together at the crossed point through a hinge pin shaft which simultaneously penetrates through the two swing rods, the hinge pin shaft is hinged with the top end of a first driven rod positioned in the collecting part through a connecting rod positioned below the hinge pin shaft and extending into the sampling hole, the bottom end of the first driven rod is hinged on the inner wall of the collecting part and is opposite to the crossed point, the part between the two ends of the first driven rod is hinged with a driving rod arranged in the collecting part, and the driving rod can move in the collecting part in a reciprocating mode along the axis direction of the driving rod; first driven lever leans on its bottom department still to articulate the one end of second driven lever, and the other end of second driven lever articulates there is a sliding strip, sliding strip is located the inner wall of collection portion and sliding fit with it, and the one end rigid coupling that the sliding strip deviates from the second driven lever has the push pedal of a vertical setting, so that when the initiative pole removed towards the most advanced of collection portion, the connecting rod was with two pendulum rods towards the outside jack-up of collection portion, just the push pedal promotes towards most advanced one side of collection portion.

2. The multifunctional agricultural warehousing sampling tube of claim 1, characterized in that: the sliding tongue is in a ball head shape, the larger hole section of the counter bore matched with the sliding tongue is an arc-shaped concave hole, the radian of the sliding tongue is matched with the ball head end of the sliding tongue, and the sliding tongue can slide into the arc-shaped concave hole when sliding in the circumferential direction in the annular groove but cannot slide out in the circumferential direction.

3. The multifunctional agricultural warehousing sampling tube of claim 1, characterized in that: the sliding tongue is in a ball head shape, the larger hole section of the counter bore matched with the sliding tongue is an arc-shaped concave hole, the radian of the sliding tongue is matched with the ball head end of the sliding tongue, and the sliding tongue can slide into the arc-shaped concave hole when sliding in the circumferential direction in the annular groove but cannot slide out in the circumferential direction.

4. The multifunctional agricultural warehousing sampling tube of any one of claims 1-3, wherein: the cross section of the swing rod is in a diamond shape, so that the swing rod is in a double-edge sword-shaped structure, and the sword point of the swing rod is opposite to the pipe wall opposite to the sampling hole.

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