Sampler

Abstract

The utility model provides a sampler, which comprises a seat body, a sampling device, a sampling device, a sampling device and a control device, and is characterized in that the seat body is provided with a sliding cavity penetrating through the seat body; the supporting part is provided with a connecting end and a supporting end which are oppositely arranged, the connecting end is movably arranged on the outer side wall of the seat body, when the supporting part is in a supporting state, an included angle is formed between the supporting part and the seat body, and the supporting end is located below the connecting end and supports the seat body; when the supporting part is in the storage state, the supporting part is attached to the seat body; the locking part is arranged between the seat body and the supporting part, and when the supporting part is in the storage state, the locking part fixes the relative position of the supporting part and the seat body; the sampling assembly is provided with an operation end and a sampling end which are oppositely arranged in the extending direction of the sliding cavity, the sampling assembly is movably arranged in the sliding cavity in a penetrating mode, the operation end is located on the outer side of the base body, and the sampling end can protrude out of or stretch into the base body. According to the scheme, the problems that in the prior art, a sampler is complex in design, large in size and inconvenient to carry and store can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, and in particular, to a sampler. Background Art

[0002] A sampler is a device widely used in fields such as agriculture, geological exploration, and environmental monitoring for collecting samples such as soil and rocks.

[0003] Most of the existing samplers are complex in design and large in size, occupying a large space during transportation and carrying, which is not conducive to quickly moving the sampler to different sampling locations. Moreover, the large-sized sampler requires more space for storage, which is not conducive to the space management of the warehouse. Summary of the Utility Model

[0004] The utility model provides a sampler to solve the problems in the prior art that the sampler is complex in design, large in size, and not convenient for carrying and storing.

[0005] The utility model provides a sampler, which includes: a base body provided with a sliding cavity penetrating through the base body; a supporting part having a connecting end and a supporting end arranged oppositely, the connecting end being movably arranged on the outer side wall of the base body, the supporting part having a supporting state and a receiving state arranged oppositely, when the supporting part is in the supporting state, there is an included angle between the supporting part and the base body, and the supporting end is located below the connecting end, the supporting end being used for supporting the base body; when the supporting part is in the receiving state, the supporting part is arranged in a fitting manner with the base body; a locking part arranged between the base body and the supporting part, when the supporting part is in the receiving state, the locking part fixes the relative positions of the supporting part and the base body; a sampling assembly having an operating end and a sampling end arranged oppositely along the extending direction of the sliding cavity, the sampling assembly being movably arranged in the sliding cavity, the operating end being located outside the base body, the sampling end being able to protrude or extend into the base body, and the sampling assembly being used for sampling.

[0006] Further, the supporting part includes: a connecting part movably arranged on the outer side wall of the base body along the extending direction of the sliding cavity; a supporting rod hinged to the connecting part; a first positioning part arranged between the connecting part and the base body, when the supporting part is in the supporting state, the first positioning part fixes the relative positions of the connecting part and the base body.

[0007] Further, a guiding groove is arranged on the outer side wall of the base body, the guiding groove extends along the extending direction of the sliding cavity, and the connecting part is movably arranged in the guiding groove.

[0008] Further, the first positioning part is arranged on the base body and is clamped with the connecting part.

[0009] Further, a first through hole is provided on the outer sidewall of the seat body. The first through hole communicates with the guiding groove. A first clamping groove is provided on the sidewall of the connecting portion. The first clamping groove is located in the guiding groove. The first positioning portion includes: a first operating rod movably passing through the first through hole. One end of the first operating rod is located in the guiding groove, and the other end is located outside the seat body; a first clamping portion movably provided in the guiding groove and connected to the first operating rod. The first clamping portion is clamped with the first clamping groove; an elastic member provided in the guiding groove. The elastic member is used to provide a force for the first clamping portion to extend into the first clamping groove.

[0010] Further, two sets of first positioning portions are provided. The two sets of first positioning portions are spaced apart along the extending direction of the guiding groove.

[0011] Further, the two sets of first positioning portions are respectively disposed near the two ends of the guiding groove. The two ends of the guiding groove are respectively in stop cooperation with the connecting portion. When the connecting portion abuts against the end of the guiding groove away from the operating end, the support rod rotates towards the operating end and is fixed to the seat body through the locking portion.

[0012] Further, a receiving groove is further provided on the sidewall of the seat body. When the support portion is in the received state, the support rod is embedded in the receiving groove.

[0013] Further, the sampler further includes: a second positioning portion provided between the sampling assembly and the seat body. When the sampling end is located in the seat body, the second positioning portion fixes the relative positions of the sampling assembly and the seat body.

[0014] Further, a second clamping groove is provided on the outer sidewall of the sampling assembly. A second through hole is provided on the sidewall of the seat body. The second positioning portion includes: a second operating rod movably passing through the second through hole. One end of the second operating rod is located in the seat body, and the other end is located outside the seat body; a second clamping portion movably provided in the seat body and located outside the sampling assembly. The second operating rod is connected to the second clamping portion. The second clamping portion is used to be clamped with the second clamping groove.

[0015] Further, the seat body includes: a fixed cylinder, a sliding cavity is provided on the fixed cylinder; a convex portion is provided on the outer sidewall of the fixed cylinder. The connecting end of the support portion is movably provided on the convex portion. The locking portion is provided between the convex portion and the support portion.

[0016] Furthermore, the sampling assembly includes: a sampling cylinder movably inserted into the sliding cavity. The sampling cylinder has a blocking end and an opening end arranged oppositely. The blocking end is located outside the seat body. A discharge port is arranged on the side wall of the sampling cylinder and is located outside the seat body; a connecting plate arranged inside the sampling cylinder and on the side closer to the blocking end of the discharge port; a drill rod rotatably arranged on the side of the connecting plate away from the blocking end. The drill bit of the drill rod protrudes from the opening end of the sampling cylinder. A spiral blade is arranged on the side wall of the drill rod and spirally extends along the length direction of the drill rod; a driving part arranged on the side of the connecting plate away from the drill rod, and the driving part is drivingly connected to the drill rod to make the drill rod rotate.

[0017] Applying the technical solution of the present utility model, during the sampling operation, release the locking of the supporting part by the locking part so that the supporting part is in the supporting state. The supporting part supports the seat body to ensure the stability of the seat body. Then move the sampling assembly along the direction from the operation end to the sampling end, and the sampling operation can be carried out through the sampling assembly; when storing the sampler, make the supporting part in the storage state, and lock the positions of the supporting part and the seat body through the locking part. Compared with the traditional technical solution, the setting of this solution enables the supporting part to switch between the storage state and the supporting state. When a sampling operation needs to be carried out, the supporting part is in the supporting state. After the sampling operation is completed, the supporting part is in the storage state. With such a setting, during the sampling operation, simply operate the supporting part to switch from the storage state to the supporting state, quickly deploy the sampler, and improve the operation efficiency. In the supporting state, the supporting part supports the seat body, ensuring the stability of the sampler during operation and avoiding sampling errors caused by uneven ground or improper operation. In the storage state, the supporting part fits closely with the seat body, reducing the overall volume of the sampler and facilitating carrying and storage. Description of the Drawings

[0018] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 Shows the structural schematic diagram of the sampler provided by the embodiment of the present utility model;

[0020] Figure 2 Shows the partial structural schematic diagram of the sampler provided by the embodiment of the present utility model when the supporting part is in the supporting state;

[0021] Figure 3 Shows the partial structural cross-sectional view of the sampler provided by the embodiment of the present utility model;

[0022] Figure 4The figure shows a partial structural schematic diagram of the support part of the sampler provided by the embodiment of the present utility model when it is in a stored state;

[0023] Figure 5 The figure shows a cross-sectional view of the sampler provided by the embodiment of the present utility model;

[0024] Figure 6 The figure shows Figure 5 a partial structural schematic diagram of part A in

[0025] Among them, the above-mentioned drawings include the following reference numerals:

[0026] 10, seat body;

[0027] 101, sliding cavity; 102, guiding groove; 103, storage groove; 104, second through hole;

[0028] 11, fixed cylinder; 12, convex part;

[0029] 20, support part;

[0030] 21, connecting part; 2101, first clamping groove;

[0031] 22, support rod;

[0032] 23, first positioning part;

[0033] 231, first operating rod; 232, first clamping part; 233, elastic part;

[0034] 30, locking part;

[0035] 40, sampling assembly; 401, second clamping groove;

[0036] 41, sampling cylinder; 4101, discharge port; 42, connecting plate; 43, drill rod; 44, driving part;

[0037] 50, second positioning part;

[0038] 51, second operating rod; 52, second clamping part. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. The following description of at least one exemplary embodiment is actually illustrative only and in no way limits the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts belong to the scope of protection of the present utility model.

[0040] As Figures 1 to 5 shown, an embodiment of the present utility model provides a sampler, which includes a base body 10, a support portion 20, a locking portion 30 and a sampling assembly 40. Among them, the base body 10 is provided with a sliding cavity 101, and the sliding cavity 101 runs through the base body 10. The support portion 20 has a connecting end and a support end arranged oppositely. The connecting end is movably arranged on the outer side wall of the base body 10. The support portion 20 has a support state and a storage state arranged oppositely. When the support portion 20 is in the support state, there is an included angle between the support portion 20 and the base body 10, and the support end is located below the connecting end. The support end is used to support the base body 10. When the support portion 20 is in the storage state, the support portion 20 is arranged in a manner that fits the base body 10. The locking portion 30 is arranged between the base body 10 and the support portion 20. When the support portion 20 is in the storage state, the locking portion 30 fixes the relative positions of the support portion 20 and the base body 10. The sampling assembly 40 has an operation end and a sampling end arranged oppositely along the extending direction of the sliding cavity 101. The sampling assembly 40 is movably arranged in the sliding cavity 101. The operation end is located outside the base body 10, and the sampling end can protrude or extend into the base body 10. The sampling assembly 40 is used for sampling.

[0041] Applying the technical solution of the present utility model, during the sampling operation, the locking of the support portion 20 by the locking portion 30 is released, so that the support portion 20 is in the support state. The support portion 20 supports the base body 10 to ensure the stability of the base body 10. Then, the sampling assembly 40 is moved along the direction from the operation end to the sampling end, and the sampling operation can be carried out through the sampling assembly 40. When the sampler is stored, the support portion 20 is in the storage state, and the positions of the support portion 20 and the base body 10 are locked by the locking portion 30. Compared with the traditional technical solution, the setting of this solution enables the support portion 20 to switch between the storage state and the support state. When the sampling operation needs to be carried out, the support portion 20 is in the support state. After the sampling operation is completed, the support portion 20 is in the storage state. With such a setting, during the sampling operation, the support portion 20 can be simply operated to switch from the storage state to the support state, quickly deploying the sampler and improving the operation efficiency. In the support state, the support portion 20 supports the base body 10, ensuring the stability of the sampler during the operation and avoiding sampling errors caused by uneven ground or improper operation. In the storage state, the support portion 20 is closely attached to the base body 10, reducing the overall volume of the sampler and facilitating carrying and storage.

[0042] In an embodiment of this solution, the support portion 20 includes a connecting portion 21, a support rod 22, and a first positioning portion 23. Among them, the connecting portion 21 is movably arranged on the outer side wall of the seat body 10 along the extending direction of the sliding cavity 101. The support rod 22 is hinged to the connecting portion 21. The first positioning portion 23 is arranged between the connecting portion 21 and the seat body 10. When the support portion 20 is in a supporting state, the first positioning portion 23 fixes the relative positions of the connecting portion 21 and the seat body 10. When it is necessary for the support portion 20 to support the seat body 10, slide the connecting portion 21 so that the connecting portion 21 is in a suitable position, and fix the positions of the connecting portion 21 and the seat body 10 through the first positioning portion 23; unfold the support rod 22 so that there is a certain included angle between the support rod 22 and the seat body 10. Then, according to different terrains and operating conditions, determine the unfolding angle of the support rod 22 so that the support rod 22 supports the seat body 10. With such a setting, its structure is simple, and it is convenient to realize the unfolding and storage of the support portion 20. Moreover, the above setting can allow the support portion 20 to adapt to different terrains and operating conditions, improving the adaptability of this device.

[0043] In an embodiment of this solution, a guiding groove 102 is arranged on the outer side wall of the seat body 10. The guiding groove 102 extends along the extending direction of the sliding cavity 101, and the connecting portion 21 is movably arranged in the guiding groove 102. The setting of the guiding groove 102 can play a role in guiding and limiting the movement of the connecting portion 21, improving the stability and smoothness of the connecting portion 21 during the movement process.

[0044] This solution does not limit the specific connection method between the first positioning portion 23 and the connecting portion 21.

[0045] In an embodiment of this solution, the first positioning portion 23 is arranged on the seat body 10 and is snap-connected to the connecting portion 21. With such a setting, it is convenient to determine the relative positions of the connecting portion 21 and the seat body 10, and the operation is relatively convenient.

[0046] Such as Figure 2 and Figure 3As shown in the figure, specifically, a first through hole is further provided on the outer side wall of the seat body 10. The first through hole is communicated with the guiding groove 102. A first clamping groove 2101 is provided on the side wall of the connecting portion 21. The first clamping groove 2101 is located in the guiding groove 102. The first positioning portion 23 includes a first operating rod 231, a first clamping portion 232 and an elastic member 233. Among them, the first operating rod 231 is movably passed through the first through hole. One end of the first operating rod 231 is located in the guiding groove 102, and the other end is located outside the seat body 10. The first clamping portion 232 is movably arranged in the guiding groove 102 and is connected to the first operating rod 231. The first clamping portion 232 is clamped with the first clamping groove 2101. The elastic member 233 is arranged in the guiding groove 102. The elastic member 233 is used to provide a force for the first clamping portion 232 to extend into the first clamping groove 2101. The above design allows the user to operate the first operating rod 231 from outside the seat body 10, which is convenient for operating the position of the first clamping portion 232 and realizing the clamping cooperation between the first clamping portion 232 and the first clamping groove 2101. Combined with the setting of the elastic member 233, the first clamping portion 232 can be stably arranged in the first clamping groove 2101, improving the stability of the whole sampler during operation.

[0047] In the embodiment of this solution, two groups of first positioning portions 23 are provided. The two groups of first positioning portions 23 are spaced apart along the extending direction of the guiding groove 102. With such a setting, the cooperation between the supporting portion 20 and the seat body 10 can be applicable to more application scenarios, and the adaptability of the device can be further improved.

[0048] Furthermore, the two groups of first positioning portions 23 are respectively arranged close to the two ends of the guiding groove 102. The two ends of the guiding groove 102 are respectively in a stop cooperation with the connecting portion 21. When the connecting portion 21 abuts against one end of the guiding groove 102 far from the operating end, the supporting rod 22 rotates towards the operating end and is fixed to the seat body 10 through the locking portion 30. In the embodiment of this solution, when the connecting portion 21 abuts against one end of the guiding groove 102 far from the operating end, the connecting portion 21 is fixed to the seat body 10 through the corresponding first positioning portion 23, and the supporting rod 22 is fixed to the seat body 10 through the locking portion 30. With such a setting, the stability of fixing the supporting portion 20 can be further improved.

[0049] In the embodiment of this solution, a receiving groove 103 is further provided on the side wall of the seat body 10. When the supporting portion 20 is in the received state, the supporting rod 22 is embedded in the receiving groove 103. With such a setting, the structural compactness of this sampler can be further improved.

[0050] Such as Figure 5 and Figure 6As shown, further, the sampler further includes a second positioning portion 50. The second positioning portion 50 is disposed between the sampling assembly 40 and the base body 10. When the sampling end is located within the base body 10, the second positioning portion 50 fixes the relative positions of the sampling assembly 40 and the base body 10. The provision of the second positioning portion 50 can fix the relative positions of the base body 10 and the sampling assembly 40 when the sampler is in an idle state, reduce the situation where the sampling assembly 40 slides relative to the base body 10, improve the stability of the sampler, and facilitate the storage of the sampler.

[0051] Further, a second clamping groove 401 is provided on the outer sidewall of the sampling assembly 40, and a second through hole 104 is provided on the sidewall of the base body 10. The second positioning portion 50 includes a second operating rod 51 and a second clamping portion 52. The second operating rod 51 is movably inserted through the second through hole 104. One end of the second operating rod 51 is located within the base body 10, and the other end is located outside the base body 10. The second clamping portion 52 is movably disposed within the base body 10 and is located outside the sampling assembly 40. The second operating rod 51 is connected to the second clamping portion 52, and the second clamping portion 52 is used for clamping with the second clamping groove 401. In an embodiment of this solution, the second operating rod 51 is rotatably connected to the second clamping portion 52, and the second operating rod 51 is threadedly connected to the second through hole 104. With such a setting, after the second clamping portion 52 is clamped with the second clamping groove 401, the position of the second clamping portion 52 can be fixed, and the stability of the clamping between the second clamping portion 52 and the second clamping groove 401 can be improved.

[0052] As Figure 1 shown, in an embodiment of this solution, the base body 10 includes a fixed cylinder 11 and a convex portion 12. The sliding cavity 101 is provided on the fixed cylinder 11; the convex portion 12 is provided on the outer sidewall of the fixed cylinder 11. The connecting end of the supporting portion 20 is movably disposed on the convex portion 12, and the locking portion 30 is provided between the convex portion 12 and the supporting portion 20. With such a setting, it is convenient to realize the assembly of the first positioning portion 23 and the second positioning portion 50.

[0053] In an embodiment of this solution, the guiding groove 102 and the receiving groove 103 are respectively provided on the convex portion 12. The guiding groove 102 is provided at the bottom of the receiving groove 103, and the length of the guiding groove 102 is less than the length of the receiving groove 103. The guiding groove 102 is provided at one end of the receiving groove 103 close to the sampling end. The locking portion 30 includes a rubber sheet. The rubber sheet is provided on the sidewall of the receiving groove 103. Under the extrusion of the rubber sheet, the support rod 22 is fixed within the receiving groove 103.

[0054] As Figure 5 and Figure 6As shown in the figure, further, the sampling assembly 40 includes a sampling cylinder 41, a connecting plate 42, a drill pipe 43, and a driving part 44. Among them, the sampling cylinder 41 is movably inserted into the sliding cavity 101. The sampling cylinder 41 has a blocking end and an opening end arranged oppositely. The blocking end is located outside the seat body 10. A handle is provided on the outer side wall of the blocking end. An outlet 4101 is provided on the side wall of the sampling cylinder 41, and the outlet 4101 is located outside the seat body 10. The connecting plate 42 is arranged inside the sampling cylinder 41 and is located on the side close to the blocking end of the outlet 4101. The drill pipe 43 is rotatably arranged on the side of the connecting plate 42 away from the blocking end. The drill bit of the drill pipe 43 protrudes from the opening end of the sampling cylinder 41. A spiral blade is provided on the side wall of the drill pipe 43, and the spiral blade spirally extends along the length direction of the drill pipe 43. The driving part 44 is arranged on the side of the connecting plate 42 away from the drill pipe 43, and the driving part 44 is drivingly connected to the drill pipe 43 to make the drill pipe 43 rotate. When performing a sampling operation, adjust the position of the supporting part 20 so that the supporting part 20 is in a supporting state. Hold the handle, start the driving part 44, and apply a downward force to the sampling cylinder 41. Under the action of the driving part 44 and the drill pipe 43, the sampling cylinder 41 and the drill pipe 43 move downward. During the downward movement of the drill pipe 43, under the action of the spiral blade, the sampled sample is spirally conveyed to the outlet 4101.

[0055] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0057] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0058] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper...", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the drawings for the device. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0059] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0060] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sampler, characterized in that: The sampler comprises: The seat body (10) is provided with a sliding cavity (101), and the sliding cavity (101) is arranged through the seat body (10); The support portion (20) comprises a connecting end and a supporting end which are arranged opposite to each other, the connecting end being movably arranged on the outer side wall of the seat body (10), the support portion (20) having a supporting state and a storage state which are arranged opposite to each other, when the support portion (20) is in the supporting state, an angle is formed between the support portion (20) and the seat body (10), and the supporting end is located below the connecting end, and the supporting end is used to support the seat body (10); when the support portion (20) is in the storage state, the support portion (20) is arranged to fit the seat body (10); A locking portion (30) is arranged between the seat body (10) and the support portion (20), and when the support portion (20) is in the storage state, the locking portion (30) fixes the relative position of the support portion (20) and the seat body (10); The sampling component (40) comprises an operating end and a sampling end which are arranged opposite to each other along the extension direction of the sliding cavity (101); the sampling component (40) is movably arranged in the sliding cavity (101); the operating end is located outside the seat body (10); the sampling end can protrude or extend into the seat body (10); and the sampling component (40) is used for sampling.

2. The sampler according to claim 1, characterized in that: The support portion (20) comprises: A connecting portion (21) is movably arranged on the outer side wall of the seat body (10) along the extension direction of the sliding cavity (101); A support rod (22), wherein the support rod (22) is hingedly connected to the connecting portion (21); A first positioning portion (23) is arranged between the connecting portion (21) and the seat body (10); when the supporting portion (20) is in the supporting state, the first positioning portion (23) fixes the relative position of the connecting portion (21) and the seat body (10).

3. The sampler according to claim 2, characterized in that: A guide groove (102) is provided on the outer side wall of the seat body (10), the guide groove (102) extends along the extension direction of the sliding cavity (101), and the connecting portion (21) is movably arranged in the guide groove (102).

4. The sampler according to claim 3, characterized in that: The first positioning portion (23) is arranged on the seat body (10) and is snap-connected with the connecting portion (21).

5. The sampler according to claim 4, characterized in that: The outer wall of the seat body (10) is also provided with a first through hole, the first through hole being in communication with the guide groove (102), the side wall of the connecting portion (21) is provided with a first clamping groove (2101), the first clamping groove (2101) being located in the guide groove (102), and the first positioning portion (23) comprises: A first operating rod (231) is movably inserted into the first insertion hole, one end of the first operating rod (231) is located in the guide groove (102), and the other end is located outside the seat body (10); A first clamping portion (232) is movably disposed in the guide groove (102) and connected to the first operating rod (231), and the first clamping portion (232) is clamped with the first clamping groove (2101); An elastic member (233) is arranged in the guide groove (102), and the elastic member (233) is used to provide a force for the first clamping portion (232) to extend into the first clamping groove (2101).

6. The sampler according to claim 5, characterized in that: Two groups of the first positioning portions (23) are provided, and the two groups of the first positioning portions (23) are spaced apart and distributed along the extension direction of the guide groove (102).

7. The sampler according to claim 6, characterized in that Two groups of the first positioning portions (23) are respectively arranged near the two end portions of the guide groove (102), and the two ends of the guide groove (102) are respectively matched with the connection portion (21) stopper, and when the connection portion (21) abuts against the end of the guide groove (102) away from the operating end, the support rod (22) rotates toward the operating end and is fixed to the seat body (10) through the locking portion (30).

8. The sampler according to claim 2, characterized in that: A storage groove (103) is also provided on the side wall of the seat body (10); when the support portion (20) is in the storage state, the support rod (22) is embedded in the storage groove (103).

9. The sampler according to claim 1, characterized in that: The sampler also includes: The second positioning portion (50) is arranged between the sampling component (40) and the base (10); when the sampling end is located in the base (10), the second positioning portion (50) fixes the relative position of the sampling component (40) and the base (10).

10. The sampler according to claim 9, characterized in that The outer side wall of the sampling assembly (40) is provided with a second clamping groove (401), the side wall of the seat body (10) is provided with a second through hole (104), and the second positioning portion (50) comprises: A second operating rod (51) is movably inserted into the second insertion hole (104), one end of the second operating rod (51) is located inside the base body (10), and the other end is located outside the base body (10); The second clamping portion (52) is movably arranged in the base body (10) and is located outside the sampling assembly (40). The second operating rod (51) is connected to the second clamping portion (52). The second clamping portion (52) is used to clamp with the second clamping groove (401).

11. The sampler according to claim 1, characterized in that: The seat body (10) comprises: A fixed cylinder (11), wherein the sliding cavity (101) is arranged on the fixed cylinder (11); The protruding portion (12) is arranged on the outer side wall of the fixing tube (11), the connecting end of the supporting portion (20) is movably arranged on the protruding portion (12), and the locking portion (30) is arranged between the protruding portion (12) and the supporting portion (20).

12. The sampler according to claim 1, characterized in that The sampling assembly (40) comprises: A sampling cylinder (41) is movably arranged in the sliding cavity (101), the sampling cylinder (41) has a blocking end and an open end which are arranged opposite to each other, the blocking end is located outside the seat body (10), and a discharge port (4101) is arranged on the side wall of the sampling cylinder (41), and the discharge port (4101) is located outside the seat body (10); A connecting plate (42) is arranged in the sampling cylinder (41) and is located on a side of the discharge port (4101) close to the blocking end; A drill rod (43) is rotatably arranged on a side of the connecting plate (42) away from the blocking end, a drill bit of the drill rod (43) protrudes out of the open end of the sampling tube (41), and a spiral blade is arranged on the side wall of the drill rod (43), and the spiral blade extends spirally along the length direction of the drill rod (43); A driving part (44) is arranged on a side of the connecting plate (42) away from the drill rod (43), and the driving part (44) is drivingly connected to the drill rod (43) so as to rotate the drill rod (43).

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