CN217819441U - Sampling device - Google Patents
Sampling device Download PDFInfo
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- CN217819441U CN217819441U CN202221266247.4U CN202221266247U CN217819441U CN 217819441 U CN217819441 U CN 217819441U CN 202221266247 U CN202221266247 U CN 202221266247U CN 217819441 U CN217819441 U CN 217819441U
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- sampling device
- mounting plate
- supporting seat
- sampling
- drill bit
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Abstract
The utility model discloses a sampling device, which comprises a supporting seat, a sampling component and a plurality of ground grasping pieces, wherein the supporting seat is provided with an avoiding hole; the sampling assembly is fixedly arranged on the supporting seat and comprises a driving piece and a spiral column, one end of the spiral column is rotatably connected with the driving piece, and the other end of the spiral column penetrates through the avoidance hole and is used for being in contact with the structural piece to rotatably take materials; the plurality of ground gripping pieces are arranged at intervals along the length direction of the supporting seat, and at least two ground gripping pieces which are oppositely arranged are arranged on the periphery of the sampling assembly; each ground grabbing piece comprises a threaded column and a drill bit, and the drill bit and the threaded column are fixedly connected; the screw thread post rotates with the supporting seat to be connected, and the screw thread post has earthing terminal and the rotatory end of relative setting, and the drill bit is installed and is used for nailing into the structure in order to fix the supporting seat on the structure in the earthing terminal. The utility model provides a sampling device simple structure, stability is good, and the drill bit can not take place the skew during sampling.
Description
Technical Field
The utility model relates to a geological survey equipment technical field, in particular to sampling device.
Background
Geotechnics, which is a general term for any one of rocks and soils that make up the earth's crust from an engineering construction standpoint, can be subdivided into five major categories of hard, sub-hard, weakly bonded, loosely unbonded, and having specific compositions, structures, conditions, and properties.
Detection sampling device among the correlation technique all adopts electric power to drive, and is inconvenient to take a sample in electroless mountain area, uses the place to limit relatively, and when taking a sample, the shake can appear in sampling device's fuselage, and stability is low, leads to the sampling drill bit to produce the skew easily.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a sampling device aims at solving the technical problem that the stability of the detection sampling device among the prior art is low.
In order to achieve the above object, the utility model provides a switching fixing device includes:
a support base having a relief hole;
the sampling assembly is fixedly arranged on the supporting seat and comprises a driving piece and a spiral column, one end of the spiral column is rotatably connected with the driving piece, and the other end of the spiral column penetrates through the avoiding hole and is used for being in contact with a structural piece to rotatably take materials;
the plurality of ground grabbing pieces are arranged at intervals along the length direction of the supporting seat, and at least two ground grabbing pieces which are oppositely arranged are arranged on the periphery of the sampling assembly;
each ground grabbing piece comprises a threaded column and a drill bit, and the drill bit and the threaded column are fixedly connected;
the screw thread post with the supporting seat rotates to be connected, the screw thread post has earthing terminal and the rotatory end of relative setting, the drill bit install in the earthing terminal is used for nailing into the structure in order to fix the supporting seat on the structure.
Optionally, the ground grabbing piece further comprises a sealing ring, and the sealing ring is movably sleeved on the threaded column and is erected on the supporting seat.
Optionally, the drill bit is threadedly connected with the threaded post.
Optionally, the sampling assembly further comprises:
the guide posts are arranged at intervals, one end of each guide post is fixedly connected with the support seat, and the other end of each guide post extends along the axial direction of the avoidance hole;
the mounting plate is movably mounted on the guide post;
a battery mounted to the mounting plate;
the driving piece is installed in the mounting panel, the battery with the driving piece electricity is connected.
Optionally, the battery is a secondary battery.
Optionally, the sampling device further comprises a charging assembly, the charging assembly comprises a support frame and a solar absorption plate, the support frame is fixedly connected with the mounting plate, the solar absorption plate is mounted on one side of the support frame, which is far away from the mounting plate, and the solar absorption plate is electrically connected with the storage battery through the power transmission pipe.
Optionally, the sampling subassembly still includes the protective housing, the protective housing install in the mounting panel orientation the one side of supporting seat, the protective housing includes interconnect's box and spliced pole, the spliced pole is kept away from the one end of box with the mounting panel is connected fixedly in order to with box fixed mounting in the mounting panel, the driving piece install in the box.
Optionally, the mounting panel corresponds the through-hole has been seted up to the guard box position, movable mounting has the pencil pipe in the through-hole, the relative both ends of pencil pipe respectively with the battery with the guard box is connected, so that supply the battery with the electric connecting wire of driving piece passes.
Optionally, the sampling subassembly still includes the protection casing, the protection casing cover is located the periphery of spiral post, the one end of protection casing with the protective housing deviates from the one end of mounting panel is connected fixedly, the other end of protection casing is inserted and is located dodge the hole.
Optionally, the spliced pole with mounting panel integrated into one piece sets up, the spliced pole is two that the interval set up, the pencil pipe set up in two between the spliced pole, the spliced pole with mounting panel threaded connection.
The utility model discloses technical scheme is through adopting and sets up a plurality of ground pieces of grabbing side by side on the length direction of supporting seat, this structure is the ground for the example, when needs take a sample to the ground, paste the bottom and the ground top layer of supporting seat mutually, rotate each screw thread post of grabbing ground piece, the screw thread post rotates and falls, install in the drill bit of the earthing terminal of screw thread post is bored into the ground, a plurality of ground pieces of grabbing firmly fix the supporting seat subaerial, and then make the sampling component who installs on the supporting seat more stable, the mount pad is also difficult for taking place to rock or shake when sampling component's driving piece drive spiral post rotates, sampling device's stability has been improved, during the sample, the ground end of boring of spiral post also can not take place to squint, be difficult to damage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the sampling device of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
fig. 3 is a schematic view of a connection structure between a power generation assembly and a battery according to an embodiment of the sampling device of the present invention;
FIG. 4 is an enlarged view at A in FIG. 1;
fig. 5 is a schematic view of a connection structure between the protection box and the connection post in an embodiment of the sampling device of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | |
| 10 | |
8 | |
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| 9 | |
7 | Threaded |
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| 6 | Guide post | 5 | |
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| 4 | Battery with a |
3 | Solar |
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| 2 | |
1 | |
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| 11 | Connecting |
12 | |
|
| 13 | |
14 | |
|
| 15 | |
16 | |
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| 17 | |
20 | |
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| 30 | Ground- |
| Handle bar | |
| 40 | |
42 | |
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| 41 | |
16a | Flanging |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The technical problem low to the stability of the detection sampling device in the technique, the utility model provides a sampling device, this sampling device can be used for carrying out the sample detection to building inside, also can be used for carrying out the sample detection to the earth of rock or ground, in this embodiment, mainly explains with the rock sample of this sampling device to ground.
In one embodiment, as shown in fig. 1-4, the sampling device includes a supporting base 10, a sampling assembly 20, and a plurality of ground grasping members 30, wherein the supporting base 10 has an avoiding hole; the sampling assembly 20 is fixedly installed on the supporting seat 10, the sampling assembly 20 comprises a driving piece 13 and a spiral column 15, one end of the spiral column 15 is rotatably connected with the driving piece 13, and the other end of the spiral column 15 penetrates through the avoidance hole and is used for being in contact with a structural piece to rotatably take materials; a plurality of ground grabbing pieces 30 are arranged at intervals along the length direction of the supporting seat 10, and at least two ground grabbing pieces 30 which are oppositely arranged are arranged on the periphery of the sampling assembly 20; each ground grabbing piece 30 comprises a threaded column 7 and a drill bit 9, and the drill bit 9 and the threaded column 7 are fixedly connected; the threaded column 7 is rotatably connected with the supporting seat 10, the threaded column 7 is provided with a grounding end and a rotating end which are oppositely arranged, and the drill bit 9 is installed on the grounding end and is used for driving a structural member into the grounding end so as to fix the supporting seat 10 on the structural member.
It should be noted that the sampling device is mainly used for sampling and detecting rock and soil, the structural member may be a building wall, a rock and soil ground, or other object to be sampled, and is not limited herein.
Alternatively, the support base 10 may be a plate to facilitate the processing thereof, and may be a rectangular plate, a circular plate, or a plate with other shapes, which is not limited herein. The support base 10 serves as a support for the entire sampling device for contact with the ground. The avoiding hole on the supporting seat 10 is a circular hole for the spiral column 15 of the sampling assembly 20 to pass through. The motor can be chooseed for use to driving piece 13, and driving piece 13's transmission shaft 14 is connected with the tip rotation of spiral post 15, and driving piece 13 rotates and drives spiral post 15 and rotate, and the bottom of spiral post 15 is used for the rock to bore into, and the ground is driven into the little crushed aggregates that the part produced and is transmitted out through the heliciform screw thread of spiral post 15 surface, realizes treating the sample collection of the rock of sampling point.
The number of the ground gripping members 30 may be 2, or 3, 4 or more, and is not limited herein, and the corresponding number of the ground gripping members 30 may be specifically set according to the size of the sampling device. In this embodiment, as shown in fig. 1, this ground grabbing piece 30 is 2 that the interval set up, 2 ground grabbing piece 30 branch locates the left and right sides of supporting seat 10, sampling assembly 20 is arranged in 2 simultaneously and grabs between ground grabbing piece 30, so that when being used for grabbing ground piece 30 and ground fixed connection, promote the stability of mount pad, the driving piece 13 of sampling assembly 20 is at the rotation in-process, the effort that the mount pad was given in the drive transmission can evenly be got into ground through 2 ground grabbing piece 30 conduction, so that the mount pad is difficult for taking place to rock or shake when driving piece 13 drive spiral post 15 of sampling assembly 20 rotates, sampling device's stability has been improved, during the sample, the boring ground end of spiral post 15 also can not take place the skew, can remain vertical state throughout, be difficult to damage.
Further, grab ground piece 30 and include screw thread post 7 and drill bit 9, the screw hole is seted up to the mount pad corresponding screw thread post 7 position, screw thread post 7 can with the screw hole threaded connection of mount pad, the brill ground end of screw thread post 7 is connected fixedly with drill bit 9 for the lower extreme of screw thread post 7, this structure so that will grab ground piece 30 and drive subaerially to be connected between supporting seat 10 and the ground is more firm. It can be understood that the rotating end of the threaded column 7 can be manually rotated by a person to drive the threaded column 7 into the ground, or the rotating end of the threaded column 7 can be fixedly connected with an external driving member 13, and the rotating end is driven by the driving member 13 to be driven to rotate and driven into the ground, which is not limited herein.
In this embodiment, as shown in fig. 1, considering that the sampling device is mainly used in mountainous areas without electricity, the threaded column 7 is manually rotated, the threaded column 7 is driven into the ground by the drill 9, in order to rotate the threaded column 7, the rotating end of the threaded column 7 can be fixed with a handle 7a by welding, and the handle 7a can be an L-shaped plate or other shapes as long as the user can manually rotate the threaded column 7.
In an embodiment, the ground grabbing element 30 further includes a sealing ring 8, and the sealing ring 8 is movably sleeved on the threaded column 7 and is overlapped on the supporting seat 10.
Optionally, elastic sealing elements such as rubber ring can be chooseed for use to this sealing washer 8, and 8 covers of sealing washer are established in the periphery of screw thread post 7, and set up on the upper surface of supporting seat 10, and closely laminating can be realized with the periphery wall of screw thread post 7 to the inner wall of sealing washer 8, avoids things such as external dust to enter into the threaded hole from the joint gap between screw thread post 7 and the screw hole, reaches the more reliable purpose of threaded connection between protection screw thread post 7 and the mount pad.
In one embodiment, the drill bit 9 is threadedly connected to the threaded post 7.
It will be appreciated that the threaded post 7 is typically made of a metal support such as stainless steel, for example, a threaded rod with external threads, which mainly converts the circumferential force applied to the threaded post 7 into an axial force for the drill bit 9, so that the drill bit 9 does work with the rock on the ground, and the support 10 is fixed on the bottom surface, and the drill bit 9 may be damaged during a long period of use. In view of this, in the present embodiment, the threaded post 7 and the drill bit 9 are selected to be connected by a thread. The internal thread hole has been seted up along vertical direction to the end of revolving to the ground of screw thread post 7, and the one end that the drill bit 9 deviates from the switching is fixed with the internal thread hole threaded connection of screw thread post 7 for drill bit 9 and screw thread post 7 can be dismantled and be connected, and when one of them party of drill bit 9 and screw thread post 7 took place to damage, the party of change damage can, need not practice thrift manufacturing cost with the whole change.
In an embodiment, the sampling assembly 20 further includes a plurality of guide posts 6, a mounting plate 5 and a battery 4, which are arranged at intervals, one end of each guide post 6 is fixedly connected to the supporting seat 10, and the other end of each guide post 6 extends along the axial direction of the avoiding hole; the mounting plate 5 is movably mounted on the guide post 6; the battery 4 is installed in the mounting plate 5, the driving piece 13 is installed in the mounting plate 5, and the battery 4 is electrically connected with the driving piece 13.
Alternatively, one end of each of the two guide posts 6 is fixedly mounted on the support base 10 as a guide for the mounting plate 5. The mounting plate 5 may be a circular plate or a rectangular plate, and is not limited thereto. The mounting plate 5 is used for mounting the main components of the sampling device, such as the battery 4 and the driving member 13. Simultaneously the mounting panel 5 can reciprocate along a plurality of guide posts 6, and then reaches the purpose of the degree of depth that control spiral post 15 inserted ground, realizes carrying out the purpose of taking a sample to the rock layer of the different degree of depth. Battery 4 fixed mounting is on mounting panel 5 for supply power to driving piece 13, thereby this sampling device need not with external power source when using, and the limitation of use is littleer, can take a sample in no electric mountain area.
The number of the guide posts 6 may be 2, 3, 4 or more, which are spaced apart from each other, and is not limited herein. In this embodiment, in order to enable the mounting plate 5 to stably move up and down along the extending direction of the guide posts 6, the number of the guide posts 6 can be selected to be 4, and the guide posts are connected to four corner positions of the mounting plate 5.
In one embodiment, the battery 4 is a secondary battery.
Optionally, the storage battery is a rechargeable battery, which has a longer service life and is more environmentally friendly than the ordinary battery 4.
In one embodiment, as shown in fig. 1, 2 and 3, the sampling device further comprises a charging assembly 40, the charging assembly 40 comprises a support frame 41 and the solar absorption plate 3, the support frame 41 is fixedly connected with the mounting plate 5, the solar absorption plate 3 is mounted on the side of the support frame 41, which faces away from the mounting plate 5, and the solar absorption plate 3 is electrically connected with the storage battery through the power transmission pipe 2.
Alternatively, it is considered that when the sampling device is used in a dead area for a long time, the amount of electricity in the battery 4 is quickly exhausted, resulting in the sampling device being unusable. Therefore, in this embodiment, a charging assembly 40 may be further added to the sampling device, the supporting frame 41 of the charging assembly 40 is used for being connected and fixed with the mounting plate 5, the solar absorption plate 3 is installed on the side of the supporting frame 41 away from the mounting plate 5, so as to be in full contact with the external sunlight, the charging efficiency is improved, and the current converted by the solar absorption plate 3 is connected with the storage battery through the power transmission pipe 2. Adopt solar energy absorption plate 3 to provide the electric energy for the battery, adopt the battery to do the utility model provides a driving piece 13 provides the power, and is more energy-concerving and environment-protective, and makes this sampling device can use in electroless mountain area for a long time, uses the scene more.
Wherein, for reducing the consumptive material of this support frame 41, as shown in fig. 3, in this embodiment, this support frame 41 includes connecting plate 1 and two support columns 42 of being connected with connecting plate 1, and the one end that connecting plate 1 was kept away from to support column 42 is used for being connected fixedly with mounting panel 5, and solar energy absorption plate 3 is installed on the upper surface of connecting plate 1, makes solar energy absorption plate 3 absorb the effect better to the sunlight, and thereby turns into the electric energy with light energy through the photovoltaic converter and uses more conveniently.
Further, as shown in the figure, this transmission pipe 2 and connecting plate 1 integrated into one piece set up, and pass through threaded connection between transmission pipe 2 and the storage battery 4, when having simplified sampling device's inner structure, the electric energy of storage that can be better prolongs this sampling device's live time.
In an embodiment, as shown in fig. 1 and fig. 5, the sampling assembly 20 further includes a protective box 17, the protective box 17 is mounted on a surface of the mounting plate 5 facing the supporting seat 10, the protective box 17 is fixedly connected to the mounting plate 5 through a connecting column 11, and the driving member 13 is mounted on the box body.
Optionally, in order to further reduce the overall thickness of the mounting plate 5 and save the production cost, a protective box 17 is additionally arranged on the sampling assembly 20, and the driving member 13 can be installed and fixed in the protective box 17, so that the overall thickness of the mounting plate 5 can be thinner.
In an embodiment, as shown in fig. 1 and 5, a through hole is opened in the mounting plate 5 corresponding to the protection box 17, a wiring tube 12 is movably installed in the through hole, and opposite ends of the wiring tube 12 are respectively connected to the battery 4 and the protection box 17 for the battery 4 and the driving member 13 to run. Further reducing the wiring difficulty between the battery 4 and the driving part 13 and prolonging the service life of the battery.
In an embodiment, as shown in fig. 3 and 4, the sampling assembly 20 further includes a protective cover 16, the protective cover 16 is sleeved on the periphery of the spiral column 15, one end of the protective cover 16 and one end of the protective box 17 deviating from the mounting plate 5 are fixedly connected, and the other end of the protective cover 16 is inserted into the avoiding hole.
Alternatively, the protective cover 16 is a hollow cylinder, the spiral column 15 is disposed inside the protective cover 16, and the outer surface of the spiral column 15 is spaced from the inner peripheral wall of the spiral column 15 to protect the spiral column 15. The lower extreme periphery of protection casing 16 turns over upwards and turns over, forms turn-ups 16a, and this turn-ups 16a sets up with the periphery wall interval of spiral post 15 to reduce the lower extreme opening of this protection casing 16, when making spiral post 15 bore ground or rock through the rotation, the little crushed aggregates that rotatory in-process produced passes through the screw thread of spiral post 15 periphery wall and spreads into protection casing 16 in, arrange in the space between the internal perisporium of turning over board and protection casing 16 of protection casing 16 in, in order to conveniently take a sample and collect.
In one embodiment, the connecting column 11 is integrally formed with the mounting plate 5 to reduce the number of internal components of the sampling device, so that the sampling device is more simple and convenient to assemble. The spliced pole 11 is two that the interval set up, the pencil pipe 12 set up in two between the spliced pole 11, spliced pole 11 with mounting panel 5 threaded connection.
Optionally, the connecting columns 11 are arranged at intervals and are arranged on two sides of the wiring tube 12, so that the connection between the protective box 17 and the mounting plate 5 is stable and the connection strength is higher. The periphery wall of spliced pole 11 has the external screw thread, and protective housing 17 has the screw hole corresponding this spliced pole 11 position reservation to make spliced pole 11 pass through the fixed protective housing 17 of line connection, so that protective housing 17's assembly is fixed.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A sampling device, comprising:
a support base having a relief hole;
the sampling assembly is fixedly arranged on the supporting seat and comprises a driving piece and a spiral column, one end of the spiral column is rotatably connected with the driving piece, and the other end of the spiral column penetrates through the avoiding hole and is used for being in contact with a structural piece to rotatably take materials;
the plurality of ground grabbing pieces are arranged at intervals along the length direction of the supporting seat, and at least two ground grabbing pieces which are oppositely arranged are arranged on the periphery of the sampling assembly;
each ground grabbing piece comprises a threaded column and a drill bit, and the drill bit and the threaded column are fixedly connected;
the screw thread post with the supporting seat rotates to be connected, the screw thread post has earthing terminal and the rotatory end of relative setting, the drill bit install in the earthing terminal is used for nailing into the structure in order to fix the supporting seat on the structure.
2. The sampling device of claim 1, wherein the ground-engaging member further comprises a sealing ring movably sleeved on the threaded post and overlapping the support base.
3. The sampling device of claim 1, wherein the drill bit is threadably connected to the threaded post.
4. The sampling device of claim 1, wherein the sampling assembly further comprises:
the guide posts are arranged at intervals, one end of each guide post is fixedly connected with the supporting seat, and the other end of each guide post extends along the axial direction of the avoidance hole;
the mounting plate is movably mounted on the guide post;
a battery mounted to the mounting plate;
the driving piece is installed in the mounting panel, the battery with the driving piece electricity is connected.
5. A sampling device according to claim 4 wherein the battery is a battery.
6. The sampling device of claim 5, further comprising a charging assembly, wherein the charging assembly comprises a support frame and a solar absorption panel, the support frame is fixedly connected with the mounting plate, the solar absorption panel is mounted on the side of the support frame away from the mounting plate, and the solar absorption panel is electrically connected with the storage battery through a transmission pipe.
7. The sampling device of claim 4, wherein the sampling assembly further comprises a protective housing, the protective housing is mounted on a side of the mounting plate facing the support base, the protective housing comprises a housing and a connecting column, the connecting column is connected and fixed with the mounting plate at an end far away from the housing, so as to fixedly mount the housing on the mounting plate, and the driving member is mounted on the housing.
8. The sampling device as claimed in claim 7, wherein the mounting plate has a through hole corresponding to the position of the protection box, a wiring tube is movably mounted in the through hole, and opposite ends of the wiring tube are respectively connected with the battery and the protection box for passing through electrical connection wires of the battery and the driving member.
9. The sampling device of claim 7, wherein the sampling assembly further comprises a protective cover, the protective cover is sleeved on the periphery of the spiral column, one end of the protective cover and one end of the protective box, which is away from the mounting plate, are fixedly connected, and the other end of the protective cover is inserted into the avoiding hole.
10. The sampling device of claim 8, wherein the connecting columns are integrally formed with the mounting plate, the connecting columns are two at intervals, the wiring tube is arranged between the two connecting columns, and the connecting columns are in threaded connection with the mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266247.4U CN217819441U (en) | 2022-05-24 | 2022-05-24 | Sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266247.4U CN217819441U (en) | 2022-05-24 | 2022-05-24 | Sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217819441U true CN217819441U (en) | 2022-11-15 |
Family
ID=83985604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221266247.4U Active CN217819441U (en) | 2022-05-24 | 2022-05-24 | Sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217819441U (en) |
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2022
- 2022-05-24 CN CN202221266247.4U patent/CN217819441U/en active Active
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