CN219416779U - Grab bucket type mud sample sampler - Google Patents
Grab bucket type mud sample sampler Download PDFInfo
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- CN219416779U CN219416779U CN202320137073.XU CN202320137073U CN219416779U CN 219416779 U CN219416779 U CN 219416779U CN 202320137073 U CN202320137073 U CN 202320137073U CN 219416779 U CN219416779 U CN 219416779U
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- grab bucket
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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Abstract
The utility model relates to a grab bucket type mud sample sampler. Comprises a first grab bucket, a second grab bucket and a base; the middle part of the top of the first grab bucket body is provided with a first shaft seat, two sides of the first shaft seat are respectively provided with a first fixed plate and a first counterweight plate, the middle part of the top of the second grab bucket body is provided with a second shaft seat, two sides of the second grab bucket body are respectively provided with a second fixed plate and a second counterweight plate, the first fixed plate and the first counterweight plate are hinged with the left side of the base, a torsion spring is arranged on the first hinge shaft, the second fixed plate and the second counterweight plate are hinged with the right side of the base, a torsion spring is arranged on the second hinge shaft, and a balancing weight is arranged on the counterweight plate; the two shaft seats are respectively hinged with a trigger plate, and the pin is also connected with a trigger pull rope; the first grab bucket is also provided with a first deflector rod, and the second grab bucket is also provided with a second deflector rod. The utility model has reasonable structural design and convenient operation, and can effectively seal the sample to avoid loss.
Description
Technical Field
The utility model belongs to the technical field of sampling facilities, and particularly relates to a grab bucket type mud sample sampler.
Background
In various offshore dredging constructions and environmental protection construction projects, in order to better formulate construction processes and determine process parameters, sampling analysis is usually required for soil conditions of the water bottom, and the soil conditions of the water bottom in the current construction operation area are obtained by analyzing the soil conditions of the water bottom, so that references are provided for formulating reasonable construction processes. In general, the samples sampled from the water bottom comprise silt, clay, sand soil, broken stone and the like, and the regional distribution condition of the soil of the water bottom can be calibrated by analyzing the component types of the collected samples, so as to guide construction ships such as a trailing suction hopper dredger or a cutter suction hopper dredger to carry out dredging operation construction. Under the normal condition, the working face of the dredging construction is wider, so the sampling work before the construction has the characteristics of high frequency, high labor intensity, time and labor consumption and the like, and the efficiency of the underwater sampling work directly influences the overall efficiency of the dredging construction engineering.
The specification of Chinese patent No. CN214952244U discloses a clam type manual underwater sampler, which comprises a first sampling hopper and a second sampling hopper which are hinged by a hinge shaft; the device comprises a first sampling bucket, a second sampling bucket, a first closing rod, a second closing rod, a lifting lug and a lifting rope, wherein the first closing rod is fixedly installed on the first sampling bucket, the second closing rod is fixedly installed on the second sampling bucket, the lifting lug is arranged in the center of a hinge shaft and connected with the lifting rope, the first closing rope is connected with the outer end of the first closing rod, and the second closing rope is connected with the outer end of the second closing rod. During operation, the underwater sampler is lowered to the water bottom, and then the two sampling hoppers are operated to be closed through the closing rope, so that the underwater sediment sample is grabbed.
The underwater sampler of the foregoing proposal has the following defects: firstly, in the process of lifting the sampler to the water surface after completing the grabbing of the underwater sediment, the closed state of the two sampling hoppers is completely maintained by virtue of the two closing ropes, and in the process of lifting to the water surface, the sampling hoppers are easy to open by themselves due to the action of water flow, so that the internal samples are lost; secondly, the overall weight of the sampler is small, the sampler cannot stably settle to the water bottom due to the influence of water flow in the process of throwing the sampler to the water bottom, and in some cases, the sampler settled to the water bottom is in a skew posture and cannot smoothly finish sampling operation. Therefore, the structure of the sampler needs to be optimally designed to solve the foregoing technical problems.
Disclosure of Invention
The utility model provides a grab bucket type mud sample sampler which is reasonable in structural design, convenient to operate and capable of effectively sealing a sample to avoid loss, and solves the technical problems in the prior art.
The utility model adopts the technical proposal for solving the technical problems in the prior art that: a grab bucket type mud sample sampler comprises a first grab bucket, a second grab bucket and a base arranged between the tops of the first grab bucket and the second grab bucket; a first shaft seat is arranged in the middle of the top of a first grab bucket body of the first grab bucket, a first fixed plate and a first counterweight plate are respectively arranged at two sides of the first shaft seat, a second shaft seat is arranged in the middle of the top of a second grab bucket body of the second grab bucket, a second fixed plate and a second counterweight plate are respectively arranged at two sides of the second shaft seat, the inner ends of the first fixed plate and the first counterweight plate are hinged with the left side of a base through a first hinge shaft and are provided with torsion springs on the first hinge shaft, the inner ends of the second fixed plate and the second counterweight plate are hinged with the right side of the base through a second hinge shaft and are provided with torsion springs on the second hinge shaft, and balancing weights are arranged on the first counterweight plate and the second counterweight plate; the first shaft seat and the second shaft seat are respectively hinged with a trigger plate, the two trigger plates are connected with the base by adopting pins, and the pins are also connected with trigger pull ropes; the first grab bucket is also provided with a first deflector rod, the second grab bucket is also provided with a second deflector rod, a traction rope is connected between the outer ends of the two deflector rods, and the middle part of the traction rope is connected with a lifting rope.
Preferably: the trigger plate includes trigger plate body and is located the pivot of trigger plate body outer end, and the pivot is located the axle bed of this side, is equipped with the pinhole at the inner of trigger plate body, also is equipped with the pinhole at the middle part of base, and the pin runs through the pinhole on two trigger plates and the pinhole on the base from top to bottom.
Preferably: the first fixed plate of the first grab bucket is positioned in front of the first shaft seat, the first weight plate is positioned at the rear of the first shaft seat, the second fixed plate of the second grab bucket is positioned at the rear of the second shaft seat, and the second weight plate is positioned at the front of the second shaft seat.
Preferably: the outer end of the first deflector rod is positioned between the first shaft seat and the first fixed plate and is welded and fixed with the first grab body and the first fixed plate, and the outer end of the second deflector rod is positioned between the second shaft seat and the second fixed plate and is welded and fixed with the second grab body and the second fixed plate.
Preferably: the rear parts of the first weight plate and the second weight plate are respectively provided with a mounting hole, the middle part of the balancing weight is provided with a mounting hole, and the balancing weight is fixedly connected with the weight plate at the side by adopting bolts.
Preferably: the outer sides of the front side wall and the rear side wall of the first grab body are welded and provided with first side reinforcing plates, and the outer sides of the bottom edges of the first grab body are welded and provided with first bottom reinforcing plates; the outer sides of the front side wall and the rear side wall of the second grab body are welded with second side reinforcing plates, and the outer sides of the bottom edges of the second grab body are welded with second bottom reinforcing plates.
Preferably: the outer ends of the first deflector rod and the second deflector rod are respectively provided with a lantern ring, the two ends of the traction rope are respectively connected with the two lantern rings, the middle part of the traction rope is provided with a hanging ring, and the lower end of the hanging rope is connected with the hanging ring.
The utility model has the advantages and positive effects that:
compared with the existing mud sampler, the grab bucket type mud sampler provided by the utility model has the advantages that the first grab bucket and the second grab bucket are hinged with the middle base by the first hinge shaft and the second hinge shaft respectively, and the torsion springs are arranged on the first hinge shaft and the second hinge shaft, so that the technical effect of effective sealing is kept under the elastic force of the torsion springs in the state of closed lifting after sampling of the two grab buckets, the mud sample in the water is effectively sealed in the process of lifting the water bottom to the water surface, the problem of internal mud sample loss caused by self-opening of the sampler is avoided, and the effectiveness of sampling is improved. Through adopting the pin to connect the trigger plate on two grab buckets and adopting the trigger stay cord to draw the pin, realized a simple operation, trigger the structural design of two grab buckets closure sampling.
On the other hand, this mud appearance sampler has promoted the whole weight of this sampler through set up the counter weight board on two grab buckets and install the balancing weight on the counter weight board, and the sampler has better resistance to rivers effect to the in-process that the submarine subsides like this, is favorable to subsides to the submarine mud face steadily and contacts with the mud face with suitable gesture, and this validity that can promote the sampling operation.
Drawings
FIG. 1 is a schematic view of the front view of the present utility model in an open state;
FIG. 2 is a schematic view of the grapple section of the present utility model in a closed position, from an upper perspective;
FIG. 3 is a schematic view of the grapple section of the present utility model in a closed position, from a lower perspective;
fig. 4 is a schematic view of the base and release assembly of fig. 1.
In the figure:
1. a first grapple; 1-1, a first grab bucket body; 1-2, a first side reinforcing plate; 1-3, a first fixing plate; 1-4, a first shaft seat; 1-5, a first weight plate; 1-6, a first bottom reinforcing plate; 2. a second grapple; 2-1, a second grab bucket body; 2-2, a second side reinforcing plate; 2-3, a second fixing plate; 2-4, a second shaft seat; 2-5, a second weight plate; 2-6, a second bottom reinforcing plate; 3. a base; 4. a pin; 5. a second deflector rod; 6. a first deflector rod; 7. triggering a pull rope; 8. a collar; 9. pulling the rope; 10. a hanging rope; 11. balancing weight; 12. a first hinge shaft; 13. a second hinge shaft; 14. a torsion spring; 15. and a trigger plate.
Detailed Description
In order to further understand the summary, features and advantages of the present utility model, the following examples are set forth in detail.
Referring to fig. 1, the grab bucket type mud sample sampler of the present utility model includes a first grab bucket 1, a second grab bucket 2, and a base 3 disposed between the tops of the two grab buckets, wherein the first grab bucket 1 and the second grab bucket 2 are hinged with the base 3, so that the two grab buckets can be opened to two sides, and the mud sample is sealed in the internal space after being closed.
Referring to fig. 2 and 3, it can be seen that:
the first grab bucket 1 comprises a first grab bucket body 1-1, a first shaft seat 1-4 is arranged in the middle of the top of the first grab bucket body 1-1, and a first fixing plate 1-3 and a first counterweight plate 1-5 are respectively arranged on two sides of the first shaft seat 1-4. As shown in the figure, the first shaft seat 1-4 comprises two oppositely arranged base plates with shaft holes, the two base plates are welded and fixed with the first grab body 1-1, the first fixing plate 1-3 is welded and fixed with the first grab body 1-1, the shaft holes are arranged at the inner ends of the base plates, the first counterweight plate 1-5 is welded and fixed with the first grab body 1-1, the shaft holes are arranged at the inner ends of the base plates, and the outer ends of the base plates are provided with mounting holes, wherein the mounting holes are used for mounting the counterweight 11.
In this embodiment, in order to improve the overall structural strength, the first side reinforcing plates 1-2 are welded and installed on the outer sides of the front and rear side walls of the first grab body 1-1, and the first bottom reinforcing plates 1-6 are welded and installed on the outer sides of the bottom edges of the first grab body 1-1. As shown in the figure, the first side reinforcing plate 1-2 is a metal plate with a hollowed hole, the outline of the metal plate is matched with the shape of the side wall of the first grab body 1-1, the first bottom reinforcing plate 1-6 is a toothed plate, the toothed plate is welded on the bottom edge of the first grab body 1-1 in a fitting way, and the first bottom reinforcing plate 1-6 is simultaneously used for resisting the friction effect received by the grab bucket during sampling of the water mud surface, so that the first bottom reinforcing plate 1-6 can be made of a wear-resistant alloy plate such as a tungsten steel plate.
The second grab bucket 2 comprises a second grab bucket body 2-1, a second shaft seat 2-4 is arranged in the middle of the top of the second grab bucket body 2-1, and a second fixing plate 2-3 and a second counterweight plate 2-5 are respectively arranged on two sides of the second shaft seat 2-4. As shown in the figure, the second axle seat 2-4 comprises two oppositely arranged base plates with axle holes, the two base plates are welded and fixed with the second grab body 2-1, the second fixing plate 2-3 is welded and fixed with the second grab body 2-1, the axle holes are arranged at the inner ends of the base plates, the second counterweight plate 2-5 is welded and fixed with the second grab body 2-1, the axle holes are arranged at the inner ends of the base plates, and the outer ends of the base plates are provided with mounting holes, wherein the mounting holes are used for mounting the counterweight 11.
In this embodiment, in order to improve the overall structural strength, the outer sides of the front and rear side walls of the second grab body 2-1 are welded with the second side reinforcing plates 2-2, and the outer sides of the bottom edges of the second grab body 2-1 are welded with the second bottom reinforcing plates 2-6. As shown in the figure, the second side reinforcing plate 2-2 is a metal plate with a hollowed hole, the outline of the metal plate is matched with the shape of the side wall of the second grab body 2-1, the second bottom reinforcing plate 2-6 is a toothed plate, the toothed plate is welded on the bottom edge of the second grab body 2-1 in a fitting way, and the second bottom reinforcing plate 2-6 is simultaneously used for resisting the friction effect received by the grab bucket during sampling of the water mud surface, so that the second bottom reinforcing plate 2-6 can be made of a wear-resistant alloy plate such as a tungsten steel plate.
The first counterweight plates 1-5 and the second counterweight plates 2-5 are respectively provided with a counterweight 11, the counterweight 11 is used for lifting the whole weight of the mud sample sampler, the stability of the mud sample sampler is lifted in the process of sedimentation to the water, and the effectiveness of sampling operation is improved. In this embodiment, the weight 11 is a metal block, a mounting hole is provided in the middle of the weight 11, and the weight 11 is fixedly connected with the weight plate on the side by using a bolt. Considering the balance of the overall structure, in this embodiment, the first fixing plate 1-3 of the first grab bucket 1 is located in front of the first shaft seat 1-4, the first weight plate 1-5 is located behind the first shaft seat 1-4, the second fixing plate 2-3 of the second grab bucket 2 is located behind the second shaft seat 2-4, and the second weight plate 2-5 is located in front of the second shaft seat 2-4, so that the imbalance problem caused by that two weight blocks 11 are simultaneously installed in front of the sampler or simultaneously installed behind the sampler is avoided, and the falling of the grab bucket in a stable posture in the process of sinking to the water is ensured.
Referring to fig. 1 and 4, it can be seen that:
the inner ends of the first fixed plate 1-3 and the first weight plate 1-5 are hinged with the left side of the base 3 through a first hinge shaft 12, a torsion spring 14 is arranged on the first hinge shaft 12, the inner ends of the second fixed plate 2-3 and the second weight plate 2-5 are hinged with the right side of the base 3 through a second hinge shaft 13, and the torsion spring 14 is arranged on the second hinge shaft 13. As described above, the shaft holes are formed in the inner ends of the first fixing plate 1-3 and the first weight plate 1-5, and the shaft holes are formed in the inner ends of the second fixing plate 2-3 and the second weight plate 2-5, so that the two ends of the first hinge shaft 12 are located in the inner end shaft holes of the first fixing plate 1-3 and the first weight plate 1-5, respectively, and the two ends of the second hinge shaft 13 are located in the inner end shaft holes of the second fixing plate 2-3 and the second weight plate 2-5, respectively.
The torsion springs 14 are used for providing the elastic force required by stable closing for the first grab bucket 1 and the second grab bucket 2, under the action of the elastic force of the left torsion spring and the right torsion spring 14 in a natural state, the first grab bucket 1 has a anticlockwise deflection trend, the second grab bucket 2 has a clockwise deflection trend, and the elastic force provided by the two torsion springs 14 enables the first grab bucket 1 and the second grab bucket 2 to keep a stable closing state, so that a mud sample is sealed inside.
The first shaft seat 1-4 and the second shaft seat 2-4 are respectively hinged with a trigger plate 15, the two trigger plates 15 are connected with the base 3 by adopting pins 4, and the pins 4 are also connected with a trigger pull rope 7. As shown in fig. 4, the trigger plate 15 includes a trigger plate body and a rotating shaft located at the outer end of the trigger plate body, the rotating shaft is located in a shaft hole of the side shaft seat, a pin hole is formed at the inner end of the trigger plate body, a pin hole is also formed in the middle of the base 3, the pin 4 penetrates through the pin holes on the two trigger plates 15 and the pin hole on the base 3 from top to bottom, the first grab bucket 1 and the second grab bucket 2 in an open state are fixed, when the grab buckets need to be operated to be closed for sampling, the pin 4 is pulled upwards through the trigger pull rope 7, and after the pin 4 is pulled out, the two grab buckets are closed under the elastic action of the torsion spring 14.
The first grab bucket 1 is also provided with a first deflector rod 6, the second grab bucket 2 is also provided with a second deflector rod 5, a traction rope 9 is connected between the outer ends of the two deflector rods, and the middle part of the traction rope 9 is connected with a lifting rope 10. As shown in fig. 1, in the state where the present mud sampler is opened, both the first lever 6 and the second lever 5 are in a crossing state, and the pulling rope 9 is in a pulling state to both sides. Both the pulling rope 9 and the lifting rope 10 are used for lifting and lowering the main body part of the present mud sampler.
In this embodiment, the outer end of the first lever 6 is located between the first shaft seat 1-4 and the first fixing plate 1-3 and is welded and fixed with the first grab body 1-1 and the first fixing plate 1-3, and the outer end of the second lever 5 is located between the second shaft seat 2-4 and the second fixing plate 2-3 and is welded and fixed with the second grab body 2-1 and the second fixing plate 2-3.
In this embodiment, the outer ends of both the first deflector rod 6 and the second deflector rod 5 are respectively provided with a lantern ring 8, two ends of the traction rope 9 are respectively connected with the two lantern rings 8, the middle part of the traction rope 9 is provided with a hanging ring, and the lower end of the hanging rope 10 is connected with the hanging ring.
The using method comprises the following steps:
in fig. 1, in the pre-sampling state of the present mud sampler, on the ship equipment above the water surface, the sampler performs the operation setting before sampling on the present mud sampler, the sampler holds the middle parts of the first deflector rod 6 and the second deflector rod 5 by two hands respectively, operates the first grab bucket 1 and the second grab bucket 2 to open against the elastic force of the torsion spring 14, and the pin holes on the two trigger plates 15 are vertically aligned with the pin holes on the base 3 when the pin 4 penetrates into each pin hole to a certain extent, so that the two grab buckets are set in the opening state shown in the figure;
the sampler is lowered into the water body by the sampler personnel, the sampler is settled to the water bottom by releasing the lifting rope 10, when the sampler contacts with the water bottom mud surface, the lifting rope 10 can be loosened, and the triggering pull rope 7 is synchronously released in the process of lowering; when the sampler judges that the sampler reaches the water sediment surface, a trigger pull rope 7 is pulled upwards to pull a pin 4 out of a pin hole on a base 3 and two trigger plates 15, so that the two grab buckets are released, under the action of the elasticity of two torsion springs 14, the first grab bucket 1 and the second grab bucket 2 are closed, and a mud sample on the water sediment surface is sealed inside in the closing process; and then the sampling personnel pulls up the trigger pull rope 7 and the lifting rope 10 at the same time to lift the sampler to the deck of the water surface ship, and holds the first deflector rod 6 and the second deflector rod 5 again to open the two grab buckets, so that the mud sample collected in the sampler falls into the sample tray.
Claims (7)
1. A grab bucket type mud sample sampler which is characterized in that: comprises a first grab bucket (1), a second grab bucket (2) and a base (3) positioned between the tops of the two; a first shaft seat (1-4) is arranged in the middle of the top of a first grab bucket body (1-1) of a first grab bucket (1), a first fixed plate (1-3) and a first weight plate (1-5) are respectively arranged at two sides of the first shaft seat (1-4), a second shaft seat (2-4) is arranged in the middle of the top of a second grab bucket body (2-1) of a second grab bucket (2), a second fixed plate (2-3) and a second weight plate (2-5) are respectively arranged at two sides of the second shaft seat (2-4), the inner ends of the first fixed plate (1-3) and the first weight plate (1-5) are hinged with the left side of a base (3) through a first hinge shaft (12), a torsion spring (14) is arranged on the first hinge shaft (12), the inner ends of the second fixed plate (2-3) and the second weight plate (2-5) are hinged with the right side weight of the base (3) through a second hinge shaft (13), a torsion spring (14) is arranged on the second hinge shaft (13), and the first torsion spring (1-5) and the torsion spring (11) are arranged on the second plate (1-5); trigger plates (15) are respectively hinged on the first shaft seat (1-4) and the second shaft seat (2-4), the two trigger plates (15) are connected with the base (3) by adopting pins (4), and trigger pull ropes (7) are also connected on the pins (4); the first grab bucket (1) is also provided with a first deflector rod (6), the second grab bucket (2) is also provided with a second deflector rod (5), a traction rope (9) is connected between the outer ends of the two deflector rods, and the middle part of the traction rope (9) is connected with a lifting rope (10).
2. The grapple type mud sampler of claim 1, wherein: the trigger plate (15) comprises a trigger plate body and a rotating shaft positioned at the outer end of the trigger plate body, the rotating shaft is positioned in a shaft seat at the side, a pin hole is formed in the inner end of the trigger plate body, a pin hole is also formed in the middle of the base (3), and the pin (4) penetrates through the pin holes of the two trigger plates (15) and the pin hole of the base (3) from top to bottom.
3. The grapple type mud sampler of claim 2, wherein: the first fixed plate (1-3) of the first grab bucket (1) is positioned in front of the first shaft seat (1-4), the first weight plate (1-5) is positioned behind the first shaft seat (1-4), the second fixed plate (2-3) of the second grab bucket (2) is positioned behind the second shaft seat (2-4), and the second weight plate (2-5) is positioned in front of the second shaft seat (2-4).
4. A grapple type mud sampler as set forth in claim 3 wherein: the outer end of the first deflector rod (6) is positioned between the first shaft seat (1-4) and the first fixing plate (1-3) and is welded and fixed with the first grab body (1-1) and the first fixing plate (1-3), and the outer end of the second deflector rod (5) is positioned between the second shaft seat (2-4) and the second fixing plate (2-3) and is welded and fixed with the second grab body (2-1) and the second fixing plate (2-3).
5. The grapple type mud sampler of claim 4, wherein: the rear parts of the first weight plates (1-5) and the rear parts of the second weight plates (2-5) are respectively provided with a mounting hole, the middle part of the balancing weight (11) is provided with a mounting hole, and the balancing weight (11) is fixedly connected with the weight plates at the side by adopting bolts.
6. The grapple type mud sampler of claim 5, wherein: the outer sides of the front side wall and the rear side wall of the first grab bucket body (1-1) are welded and provided with first side reinforcing plates (1-2), and the outer sides of the bottom edge of the first grab bucket body (1-1) are welded and provided with first bottom reinforcing plates (1-6); the outer sides of the front side wall and the rear side wall of the second grab bucket body (2-1) are welded with second side reinforcing plates (2-2), and the outer sides of the bottom edges of the second grab bucket body (2-1) are welded with second bottom reinforcing plates (2-6).
7. The grapple type mud sampler of claim 6, wherein: the outer ends of the first deflector rod (6) and the second deflector rod (5) are respectively provided with a lantern ring (8), the two ends of the traction rope (9) are respectively connected with the two lantern rings (8), the middle part of the traction rope (9) is provided with a hanging ring, and the lower end of the hanging rope (10) is connected with the hanging ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320137073.XU CN219416779U (en) | 2023-01-15 | 2023-01-15 | Grab bucket type mud sample sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320137073.XU CN219416779U (en) | 2023-01-15 | 2023-01-15 | Grab bucket type mud sample sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219416779U true CN219416779U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320137073.XU Active CN219416779U (en) | 2023-01-15 | 2023-01-15 | Grab bucket type mud sample sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219416779U (en) |
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2023
- 2023-01-15 CN CN202320137073.XU patent/CN219416779U/en active Active
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