Sampling device and sampling machine

Abstract

The utility model discloses a sampling device and a sampling machine, and relates to the technical field of grain sampling. The rocker sliding block mechanism is rotationally connected with the bracket; the crank mechanism is arranged on the support, and the crank mechanism is rotationally connected with the rocker sliding block mechanism so as to drive the rocker sliding block mechanism to rotate and slide relative to the support; the stick mechanism is connected with one end, deviating from the crank mechanism, of the rocker sliding block mechanism, and the stick mechanism rotates along with the rocker sliding block mechanism and moves in the height direction of the support. According to the technical scheme provided by the utility model, the crank mechanism and the rocker sliding block mechanism are adopted to form a serial connection mechanism, so that vertical sampling is completed without three-axis linkage, and the fault points and the fault rate of the sampler are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to grain sampling technology field, especially in a kind of sampling device and sampling machine. BACKGROUND

[0002] Sampling machine is the equipment that random sampling is carried out before vehicle-mounted bulk grain is stored in warehouse, so as to subsequent inspection of grain quality.The full-automatic guide rail type sampling machine realizes the intelligent identification of vehicle information, the random selection of sampling point and the automation of sampling process due to its flexibility and convenience and built-in program and control system.The existing guide rail type sampling machine generally adopts the way of three-axis linkage to complete the vertical down sampling of sampling rod.

[0003] But in use process, the control difficulty of existing sampling machine is high, leading to the fault of sampling process easily. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a kind of sampling device, to reduce the fault point and failure rate of sampling machine.

[0005] For the above purpose, the sampling device provided by the utility model comprises:

[0006] Support;

[0007] Rocker slider mechanism, the rocker slider mechanism is rotatably connected with the support;

[0008] Crank mechanism, which is provided on the support, the crank mechanism is rotatably connected with the rocker slider mechanism, to drive the rocker slider mechanism to rotate and slide relative to the support; and

[0009] Sampling rod mechanism, which is connected with one end of the rocker slider mechanism away from the crank mechanism, the sampling rod mechanism moves along the height direction of the support following the rotation of the rocker slider mechanism.

[0010] In an embodiment, the rocker slider mechanism comprises:

[0011] Fixed seat, which is provided on the support;

[0012] Slider, which is rotatably connected with the fixed seat;

[0013] Rocker, which is slidably connected with the slider, and one end of the rocker is rotatably connected with the crank mechanism, and the other end of the rocker is rotatably connected with the sampling rod mechanism; and

[0014] Slide rail, which is provided on the side of the rocker facing the slider, and the rocker is slidably connected with the slider through the slide rail.

[0015] In an embodiment, the crank mechanism comprises:

[0016] A driving seat is arranged on the support;

[0017] A crank is rotatably connected to one end of the driving seat, and the other end of the crank is rotatably connected to the rocker;

[0018] A driving part is connected to the crank to drive the crank to rotate relative to the driving seat.

[0019] In an embodiment, the sample taking mechanism comprises a sample taking box and a sample taking rod fixedly connected to the sample taking box, wherein the sample taking box is hingedly connected to one end of the rocker away from the crank through a force sensor, and the sample taking rod is fixed to the sample taking box through a sample taking rod locking block.

[0020] In an embodiment, the sample taking device further comprises an electromagnetic assembly arranged between the rocker slider mechanism and the sample taking mechanism to limit the movement trajectory of the rocker slider mechanism.

[0021] The utility model provides a kind of sample taking machine, the sample taking machine has sample taking device, and the sample taking device is using the sample taking device in the utility model.

[0022] In an embodiment, the sample taking machine has an aerial track, and the aerial track includes at least two columns and a walking track arranged on the columns, wherein the at least two columns are fixedly connected to the walking track.

[0023] In an embodiment, the sample taking machine further has a moving device, and the moving device includes:

[0024] A base is movably arranged on the walking track.

[0025] A wheel set is arranged on each of opposite sides of the base, and each wheel set is movably connected to the walking track.

[0026] A walking assembly is arranged on the walking track, and the walking assembly is drivingly connected to the base to drive the base to move along the length direction of the walking track.

[0027] A rotating assembly is arranged on the base, and the rotating assembly is drivingly connected to the support to drive the support to rotate relative to the base.

[0028] In an embodiment, the sample taking machine further includes an elastic tensioning mechanism, and each end of the walking assembly is connected to the walking track through an elastic tensioning mechanism.

[0029] In an embodiment, the sample taking machine further includes a bidirectional monitoring support, and each end of the walking track is provided with a bidirectional monitoring support to install a monitoring camera.

[0030] The technical scheme provided by the utility model discloses a support is the basic structure of whole sampling device, is used for supporting and fixed rocker slider mechanism and crank mechanism.Rocker slider mechanism can rotate on the support simultaneously and can slide.Utilize the crank mechanism that sets up, can form series mechanism with rocker slider mechanism, when the crank mechanism does the rotation motion, the motion track of the end of rocker slider mechanism has vertical lifting, through control crank's rotation angle range, make the end of rocker slider mechanism only do reciprocating motion in vertical lifting track range, thereby realize the vertical reciprocating sampling action of the rod mechanism.The technical scheme that the utility model embodiment proposes realizes the sampling in the condition of not needing three axis linkage, reduces control difficulty and the precision requirement to component, can also reduce three axis linkage sampling equipment failure rate, improves the accuracy of motion track. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the utility model embodiment or prior art, the following will briefly introduce the drawing needed to be used in embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, can also obtain other drawings according to the structure shown in these drawings.

[0032] Figure 1 It is the stereogram structural schematic diagram of the embodiment of the sampling machine provided by the utility model;

[0033] Figure 2 It is the motion track diagram of the embodiment of the sampling device provided by the utility model;

[0034] Figure 3 It is the structural schematic diagram of the embodiment of the movable device provided by the utility model;

[0035] Figure 4 It is the stereogram structural schematic diagram of the embodiment of the elastic tensioning mechanism provided by the utility model;

[0036] Figure 5 It is the stereogram structural schematic diagram of the embodiment of the sampling device provided by the utility model;

[0037] Figure 6 It is the stereogram structural schematic diagram of the embodiment of the electromagnetic assembly provided by the utility model.

[0038] EXPLANATION OF DRAWINGS:

[0039] 10, support; 20, rocker slider mechanism; 21, fixed seat; 22, slider; 23, rocker; 24, sliding rail; 30, crank mechanism; 31, driving seat; 32, crank; 33, driving part; 40, skewer mechanism; 41, skewer box; 42, force sensor; 43, skewer; 44, skewer locking block; 50, electromagnetic assembly; 51, electromagnet mounting seat; 52, electromagnet; 53, electromagnet suction plate; 60, aerial rail; 61, stand column; 62, walking rail; 70, mobile device; 71, base; 72, wheel set; 73, walking assembly; 731, walking motor speed reducer; 732, driving sprocket; 733, driven sprocket; 734, chain; 74, rotating assembly; 80, elastic tensioning mechanism; 81, screw rod; 82, spring; 83, positioning sleeve; 84, anti-loosening piece; 90, two-way monitoring support.

[0040] The realization, functional features and advantages of the utility model will be further described in combination with embodiments with reference to the drawings. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0042] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0043] In addition, if the embodiments of the utility model involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, taking "A and / or B" as an example, including A solution, or B solution, or A and B solutions are satisfied simultaneously. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0044] The sampling machine is a device for sampling randomly before the vehicle-mounted bulk grain is stored in the warehouse, so as to test the quality of the grain. The full-automatic guide rail type sampling machine realizes intelligent identification of vehicle information, random selection of sampling points and automation of the sampling process, and greatly improves the accuracy and efficiency of sampling, due to its flexibility, convenience, built-in program and control system.

[0045] The existing guide rail type sampling machine is generally provided with a guide rail, a trolley, a rotary table, a large arm and a sampling rod mechanism. One end of the large arm is connected with the sampling rod mechanism, and the other end is connected with a large arm drive installed on the rotary table. The sampling action of the sampling rod is completed by driving the large arm to swing and driving the sampling rod to lift. However, due to the change of the horizontal arm length when the large arm swings, if the sampling rod is to be ensured to be vertically sampled, three-axis linkage must be realized, that is, the rotary table and the trolley must be rotated and linearly moved along the guide rail respectively while the large arm swings, and the three axes must be kept in high-precision synchronization during movement. This requires advanced control algorithms and accurate sensors to monitor and adjust the movement state of each axis in real time. During the movement of the equipment, especially during high-speed movement, the dynamic performance difference between the axes may cause deviation of the movement trajectory. At the same time, there are nonlinear factors such as friction and inertia in the mechanical system, which will affect the precision and stability of the three-axis linkage. These factors require control algorithms to compensate for these nonlinear factors to improve the control precision of the system. These factors require the full-automatic guide rail type sampling machine to use high-precision components and advanced control algorithms, which has a relatively high manufacturing cost, making some small and medium-sized enterprises face great financial pressure when purchasing, limiting the popularization speed. In addition, its internal structure is complex, and the maintenance requirement is high. If the operator lacks relevant knowledge and skills, it may cause the equipment to malfunction or damage, affecting the work efficiency and sampling quality. In addition, the maintenance and replacement of some high-precision components may also bring additional costs

[0046] Therefore, the utility model embodiment provides a sampling device, which can realize vertical lifting of the sampling rod mechanism when the support is fixed, and through the setting of the crank mechanism and the rocker block mechanism, a series connection mechanism of the crank mechanism and the rocker block mechanism is formed. By controlling the rotation angle range of the crank mechanism, the end of the rocker block mechanism only makes reciprocating motion within the vertical lifting track range, so that the vertical reciprocating sampling action of the sampling rod is realized.

[0047] In order to better understand the above technical solutions, the above technical solutions will be described in detail below in combination with the drawings.

[0048] As shown in Figure 1 , Figure 2 , Figure 5 The utility model embodiment provides a sampling device, which comprises:

[0049] A support 10;

[0050] A rocker slider mechanism 20 is rotationally connected with the support 10;

[0051] A crank mechanism 30 is arranged on the support 10, and the crank mechanism 30 is rotationally connected with the rocker slider mechanism 20 to drive the rocker slider mechanism 20 to rotationally slide relative to the support 10; and

[0052] A prong mechanism 40 is connected with one end of the rocker slider mechanism 20 away from the crank mechanism 30, and the prong mechanism 40 moves along the height direction of the support 10 following the rotation of the rocker slider mechanism 20.

[0053] In the technical scheme adopted in this embodiment, the support 10 is the basic structure of the whole sampling device, and is used to support and fix the rocker slider mechanism 20 and the crank mechanism 30. The rocker slider mechanism 20 can rotate and slide on the support 10. By using the arranged crank mechanism 30, a series mechanism can be formed with the rocker slider mechanism 20. When the crank mechanism 30 performs a rotational motion, the motion trajectory of the end of the rocker slider mechanism 20 has a vertical lifting section. By controlling the rotation angle range of the crank, the end of the rocker slider mechanism 20 only performs a reciprocating motion in the vertical lifting trajectory range, so that the vertical reciprocating sampling action of the prong mechanism 40 is realized. The technical scheme proposed in the embodiment of the present application realizes sampling without three-axis linkage, reduces the control difficulty and the accuracy requirement for components, and also reduces the equipment failure rate of three-axis linkage sampling, and improves the accuracy of the motion trajectory.

[0054] Specifically, the sampling device comprises a support 10, a rocker slider mechanism 20, a crank mechanism 30 and a prong mechanism 40.

[0055] The support 10 can be made of metal materials such as stainless steel and iron, and has a certain bearing capacity to provide a supporting effect.

[0056] The rocker slider mechanism 20 is rotationally connected with the support 10, and can be rotationally connected with the support 10 through a rotating shaft to be able to rotate and slide relative to the support 10 under the action of an external force. The rocker slider mechanism 20 is usually composed of a rocker and a slider, and can slide synchronously while rotating. In this way, fixed-point vertical sampling can be realized. It can be understood that when one end of the rocker slider mechanism 20 is rotated downward and the rocker slider mechanism 20 slides downward relative to the support 10, the one end of the rocker slider mechanism 20 can realize vertical downward movement; when one end of the rocker slider mechanism 20 is rotated upward and the rocker slider mechanism 20 slides upward relative to the support 10, the one end of the rocker slider mechanism 20 can realize vertical upward movement.

[0057] The crank mechanism 30 is used to drive the rocker slider mechanism 20 to move, so that the rocker slider mechanism 20 can rotate and slide synchronously. The crank mechanism 30 can be connected with the rocker slider mechanism 20 through a rotating shaft. By rotating the crank mechanism 30, the rocker slider mechanism 20 can be pulled or pushed to rotate relative to the support 10, so as to realize the reciprocating motion in the vertical direction.

[0058] The skewer mechanism 40 is rotatably connected to one end of the rocker slider mechanism 20, and is used to realize the sampling of the target product. The skewer mechanism 40 can rotate with the rocker slider mechanism 20 and only reciprocate in the up-down direction, so as to realize the vertical downward sampling. It can be understood that the skewer mechanism 40 is rotatably connected with the rocker slider mechanism 20, so that the skewer mechanism 40 always keeps a downward state during the lifting process.

[0059] In addition, by setting the length of the crank in the crank mechanism 30, the length of the rocker in the rocker slider mechanism 20, and the position of the connecting point of the crank and the rocker, the skewer mechanism 40 can cover the sampling range in the width direction of the grain cart.

[0060] Figure 2 The motion trajectory diagram of the sampling device in the embodiment is shown. S is equivalent to the crank mechanism 30, and TR is equivalent to the rocker slider mechanism 20. When S rotates around the 0 point, T slides along R, and R can also rotate around 01, forming a series structure of S and R and R and T. When S rotates around the 0 point for one revolution, the running trajectory of the B point is II, and the running trajectory of the A point at the front end of T is I. The EF segment of the trajectory I is a straight line motion. By limiting the rotation angle of S around the 0 point, the A point can be made to reciprocate in the vertical direction, so as to realize the vertical sampling.

[0061] Further, with reference to Figure 1 、 Figure 5 In an embodiment of the utility model, the rocker slider mechanism 20 includes:

[0062] The fixed seat 21 is arranged on the support 10.

[0063] The slider 22 is rotatably connected with the fixed seat 21.

[0064] The rocker 23 is slidably connected with the slider 22, one end of the rocker 23 is rotatably connected with the crank mechanism 30, and the other end of the rocker 23 is rotatably connected with the skewer mechanism 40.

[0065] The slide rail 24 is arranged on the side of the rocker 23 facing the slider 22, and the rocker 23 is slidably connected with the slider 22 through the slide rail 24.

[0066] In the technical scheme adopted in this embodiment, the rocker slider mechanism 20 can include a fixed seat 21, a slider 22, a rocker 23 and a slide rail 24. The fixed seat 21 is used to fix and support the whole rocker slider mechanism 20. The slider 22 is a key component in the rocker slider mechanism 20, which reciprocates along the slide rail 24 and can rotate relative to the fixed seat 21. One end of the rocker 23 is hinged to the crank mechanism 30 through a bearing, and the other end of the rocker 23 is hinged to the skewer mechanism 40 through a bearing, and can rotate relative to the hinge point. The slide rail 24 is installed on the rocker 23, and when the crank mechanism 30 rotates, it can drive one end of the rocker 23 to swing around the rotation axis of the hinge point of the crank mechanism 30 and the rocker 23, and the other end of the rocker 23 and the skewer mechanism 40 can swing around the rotation axis of the hinge point of the skewer mechanism 40 and the rocker 23. In this movement, the slider 22 can reciprocate along the slide rail 24, and the slider 22 can also rotate around the fixed seat 21. It can be understood that the movement of this embodiment is equivalent to Figure 2 the movement of T in the figure, that is, T slides along R while rotating around O1, and the movement trajectory of the hinge point of the rocker 23 and the skewer mechanism 40 is equivalent to the movement trajectory I in the figure, that is, the straight line movement trajectory of EF segment, that is, by controlling the rotation angle of the crank mechanism 30, the circular movement of the crank mechanism 30 is controlled to swing within a certain range, so that the skewer mechanism 40 only reciprocates in the up-down direction, and the vertical skewer sampling of the skewer mechanism 40 is realized. Figure 2

[0067] Further, referring to Figure 5 In an embodiment of the utility model, the crank mechanism 30 includes:

[0068] The driving seat 31 is arranged on the support 10.

[0069] The crank 32 is rotatably connected to one end of the driving seat 31, and the other end of the crank 32 is rotatably connected to the rocker.

[0070] The driving part 33 is connected to the crank to drive the crank to rotate relative to the driving seat 31.

[0071] In the technical scheme adopted in this embodiment, the crank mechanism 30 can include a driving seat 31, a crank 32 and a driving part 33. The driving seat 31 is used to support the crank 32 and the driving part 33. In this embodiment, the driving part 33 can be a motor fixed on the driving seat 31, and one end of the crank 32 is fixed on the output end of the motor. The crank 32 rotates under the driving of the motor. It can be understood that the movement of this embodiment is equivalent to the rotation movement of S around the point O in the movement trajectory figure. Figure 2

[0072] Further, referring to Figure 5 , Figure 6 ​​In an embodiment of the utility model, the skewer mechanism 40 includes a skewer box 41 and a skewer 43 fixedly connected with the skewer box 41, wherein the skewer box 41 is hingedly connected with one end of the rocker 23 away from the crank 32 through a force sensor 42, and the skewer 43 is fixed on the skewer box 41 through a skewer locking block 44.

[0073] In the technical scheme adopted in this embodiment, the skewer mechanism 40 includes a skewer box 41 and a skewer 43. The skewer box 41 is hingedly connected with the rocker 23 through a beam of the force sensor 42, and the skewer 43 is fixed on the skewer box 41 through a skewer locking block 44. The force sensor 42 is used to detect the size of the downward skewing force during sampling, so that the designer and the operator can know the size of the downward skewing force of different materials and adjust the size and speed of the downward skewing force according to the requirements to adapt to the sampling requirements of different materials. This precise control improves the precision and reliability of sampling, and the downward skewing force of the sampling machine needs to be moderate, which can penetrate the target medium and avoid damaging the sample and the equipment.

[0074] Further, referring to Figure 6 In an embodiment of the utility model, the sampling device further includes an electromagnetic assembly 50 arranged between the rocker slider mechanism 20 and the skewer mechanism 40 to limit the movement trajectory of the rocker slider mechanism 20.

[0075] In the technical scheme adopted in this embodiment, the electromagnetic assembly 50 can limit the movement trajectory of the rocker slider mechanism 20, so that the movement trajectory of the rocker slider mechanism 20 is always in linear reciprocating motion. In this embodiment, the electromagnetic assembly 50 can include an electromagnet mounting seat 51, an electromagnet 52 and an electromagnet suction plate 53. The electromagnet 52 can be fixedly installed on the electromagnet mounting seat 51, the electromagnet mounting seat 51 can be fixed on the rocker, and the electromagnet suction plate can be fixed on the skewer box 41. Thus, the energization and magnetization can be reasonably selected according to the customer requirements and the working time of the equipment. It can be understood that when the skewer mechanism 40 rises to the highest point, i.e. the upper endpoint of the selected EF straight line, the electromagnet 52 generates a magnetic field around it by energization or de-energization, so that it has magnetism and is attracted to the electromagnet suction plate 53, thereby realizing the attraction and positioning of the skewer mechanism 40 and the rocker slider mechanism 20. When the electromagnet 52 is de-magnetized to separate the skewer mechanism 40 and the rocker slider mechanism 20, the downward skewing is realized.

[0076] The utility model also provides a sampling machine, the sampling machine includes the sampling device of each embodiment above. The specific structure of the sampling device is referred to the above embodiments. Since the sampling machine adopts all the technical schemes of the above embodiments, it at least has all the beneficial effects brought by the technical schemes of the above embodiments, which will not be repeated here.

[0077] Further, referring to Figure 1In an embodiment of the utility model, the sampling machine has an aerial track 60, the aerial track 60 includes at least two stand columns 61 and a walking track 62 arranged on the stand columns 61, wherein the at least two stand columns 61 are fixedly connected with the walking track 62.

[0078] In the technical scheme adopted in this embodiment, the sampling machine has an aerial track 60, the aerial track 60 includes stand columns 61 and a walking track 62. The stand columns 61 are fixed on the ground foundation to provide support. The stand columns 61 are fixedly connected with the walking track 62 through screws. The walking track 62 can provide longitudinal walking for the sampling device, and the sampling device can reciprocate in the left-right direction along the walking track 62. The left-right length of the walking track 62 can be determined according to the size of the body of the grain car to meet the requirement of the sampling length range, which is not limited here.

[0079] Further, referring to Figure 1 、 Figure 3 In an embodiment of the utility model, the sampling machine further has a movable device 70, the movable device 70 includes:

[0080] a base 71 movably arranged on the walking track 62;

[0081] a wheel set 72, at least two wheel sets 72 are arranged on the opposite sides of the base 71, and are movably connected with the walking track 62;

[0082] a walking assembly 73 arranged on the walking track 62, and the walking assembly 73 is drivingly connected with the base 71 to drive the base 71 to move along the length direction of the walking track 62; and

[0083] a rotating assembly 74 arranged on the base 71, and the rotating assembly is drivingly connected with the support 10 to drive the support 10 to rotate relative to the base 71.

[0084] In the technical scheme adopted in the embodiment, the sampling machine further has a moving device 70, which comprises a base 71, a wheel set 72, a walking assembly 73 and a rotating assembly. The base 71 is a support structure of the moving device 70, used for bearing the weight of the whole device and providing a mounting platform for other assemblies. The wheel set 72 is installed on opposite sides of the base 71 and can reduce friction and improve moving efficiency when moving on the walking rail 62. The walking assembly 73 is used for providing power in the left-right direction to make the moving device 70 advance or retreat. The rotating assembly can make the support 10 realize steering, so that the sampling position of the sampling device can be changed without changing the position of the base 71. In the embodiment, the walking assembly 73 can comprise a walking motor-reducer 731, a driving sprocket 732, a driven sprocket 733 and a chain 734. The driving sprocket 732 is installed on the output shaft of the walking motor-reducer 731, and the two driven sprockets 733 are installed on opposite sides of the driving sprocket 732 respectively, used for transmitting power and ensuring that the sprocket and the chain 734 have a suitable wrap angle, so as to reduce wear and improve transmission efficiency. Preferably, the chain 734 is an open chain. The rotating assembly can be a turntable. It can be understood that when sampling is needed, the moving device 70 moves left and right along the walking rail 62, the turntable rotates in the horizontal plane to position the sampling rod mechanism 40 to a randomly selected sampling point, then the crank 32 rotates in an angle range to drive the sampling rod 43 connected to the end of the rocker 23 to make a reciprocating linear motion, realizing vertical sampling. Of course, in order to achieve the effect of prolonging the maintenance time or even being maintenance-free, a lubricating groove can also be welded on the walking rail 62, the lubricating groove is filled with lubricating oil, and the chain 734 is immersed in the lubricating groove to ensure the lubrication of the chain 734, thereby ensuring the normal operation of the equipment and prolonging the service life of the equipment.

[0085] Further, with reference to Figure 3 、 Figure 4 In an embodiment of the utility model, the sampling machine further comprises elastic tensioning mechanisms 80, and two ends of the walking assembly 73 are connected with the walking rail 62 through an elastic tensioning mechanism 80 respectively.

[0086] In the technical scheme adopted in the embodiment, the two ends of the chain 734 are fixed at the two ends of the walking rail 62 through the elastic tensioning mechanism 80, so that the chain 734 can maintain appropriate tension and avoid slack or over-tightening. In the embodiment, the elastic tensioning mechanism 80 can include a screw rod 81, a spring 82, a positioning sleeve 83 and a locking piece 84. The screw rod 81 is a chain 734 tensioning pull rod, one end of which is connected to the chain 734, and the other end is connected to the locking piece 84 through a thread. The spring 82 passes through the screw rod 81 and is limited in length by the locking piece 84. The positioning sleeve 83 is installed at both ends of the spring 82 and plays a role in radially positioning the spring 82. The elastic tensioning mechanism 80 generates tensioning force through the deformation of the spring 82, so that the chain 734 maintains a certain fastening force. It can be understood that when the loading force of the chain 734 changes when the mobile device 70 is walking, the spring 82 can automatically adjust the fastening force to meet the use requirements in different working conditions. The structure has the advantages of automatic tensioning, simple installation and long service life, and can maintain stable tensioning force for a long time.

[0087] Further, with reference to Figure 1 In an embodiment of the utility model, the sampling machine further comprises a bidirectional monitoring support 90, and the two ends of the walking rail 62 are respectively provided with a bidirectional monitoring support 90 for installing a monitoring camera.

[0088] In the technical scheme adopted in the embodiment, the bidirectional monitoring support 90 is provided, the monitoring camera can be installed, and the specific process of each sampling can be remotely monitored and recorded through the camera, including the action of each component of the sampling machine, the sampling position, depth, time and other key information. It is beneficial to ensure the accuracy and representativeness of sampling.

[0089] The above-mentioned is only an exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by using the utility model specification and drawings, or direct / indirect application in other related technical fields is included in the patent protection range of the utility model.

Claims

1. A sampling device, characterized in that, The sampling device comprises: a support; a rocker slider mechanism rotatably connected to the support; a crank mechanism arranged on the support and rotatably connected to the rocker slider mechanism to drive the rocker slider mechanism to rotate and slide relative to the support; and a lance mechanism connected to one end of the rocker slider mechanism away from the crank mechanism, the lance mechanism moving along the height direction of the support following the rotation of the rocker slider mechanism. The rocker slider mechanism comprises:

2. The sampling device of claim 1, wherein, a fixed seat arranged on the support; a slider rotatably connected to the fixed seat; a rocker slidably connected to the slider, one end of the rocker being rotatably connected to the crank mechanism and the other end of the rocker being rotatably connected to the lance mechanism; and a slide rail arranged on the side of the rocker facing the slider, the rocker being slidably connected to the slider through the slide rail. The crank mechanism comprises:

3. The sampling device of claim 2, wherein, a driving seat arranged on the support; a crank, one end of the crank being rotatably connected to the driving seat and the other end of the crank being rotatably connected to the rocker; and a driving part connected to the crank to drive the crank to rotate relative to the driving seat. The lance mechanism comprises a lance box and a lance fixedly connected to the lance box, wherein the lance box is hingedly connected to one end of the rocker away from the crank through a force sensor, and the lance is fixed to the lance box through a lance locking block.

4. The sampling device of claim 2, wherein, The sampling device further comprises an electromagnetic assembly arranged between the rocker slider mechanism and the lance mechanism to limit the movement trajectory of the rocker slider mechanism.

5. The sampling device of claim 1, wherein, The sampling device comprises the sampling device according to any one of claims 1-5.

6. A coring machine characterized by, The sampling machine has an aerial track comprising at least two upright columns and a walking track arranged on the upright columns, wherein the at least two upright columns are fixedly connected to the walking track.

7. The corer of claim 6, wherein The sampling machine further has a moving device comprising:

8. The corer of claim 7, wherein, a base movably arranged on the walking track; a wheel set, at least two wheel sets are arranged on the opposite sides of the base and movably connected to the walking track; a walking assembly arranged on the walking track and drivingly connected to the base to drive the base to move along the length direction of the walking track; and a rotating assembly arranged on the base and drivingly connected to the support to drive the support to rotate relative to the base. The sampling machine further comprises an elastic tensioning mechanism, both ends of the walking assembly are connected to the walking track through one elastic tensioning mechanism.

9. The corer of claim 8, wherein, The sampling machine further comprises a bidirectional monitoring support, one bidirectional monitoring support is arranged at each end of the walking track to install a monitoring camera.

10. The corer of claim 7, wherein, ​

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