Handheld electric vibration river bottom sampler

Abstract

The present invention belongs to the technical field of civil engineering survey, and more specifically, it relates to a handheld electric vibration riverbed sampler. It includes a base, a motor, a coring inner tube, a coring outer tube and a water stop valve; the motor is installed on the top of the base, one end of the coring inner tube is connected to the water inlet end of the water stop valve, and the water outlet end of the water stop valve is connected to the bottom of the base through a connector; the coring outer tube is sleeved on the outside of the coring inner tube, one end of the coring outer tube is connected to the bottom of the base, and the end of the coring inner tube away from the water stop valve is also located in the coring outer tube. The handheld electric vibration riverbed sampler provided by the present invention has a simple structure, is lightweight, and is easy to carry and operate; in addition, by adding a water stop valve, the river water entering the coring inner tube can be discharged while ensuring normal operation, and the pressure inside and outside the tube body can be maintained to ensure that the sample does not fall.

Description

Technical Field

[0001] The invention belongs to the technical field of civil engineering surveying, and more specifically, relates to a handheld electric vibration riverbed sampler. Background Art

[0002] The existing sampling technology uses a large machine body as a fixed frame and power source, and drives the vibrating components or hydraulic motors through hydraulic drive power parts, thereby driving the rotating rod to feed samples in the soil. The existing river samplers have disadvantages such as bulky power components and inability to operate on small hulls. In terms of power source selection, the existing technology has chosen hydraulic drive. The hydraulic power unit and hydraulic guide rails directly increase the size of the machine body and reduce convenience. On the core tube, the existing technology simply installs a reed at the bottom inlet, which has poor coring effect on samples with high water content in the soil. Summary of the invention

[0003] In order to overcome at least one defect in the above-mentioned prior art, the present invention provides a handheld electric vibration river bottom sampler, which is easy to carry and can better perform underwater sampling operations to avoid sample falling.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a handheld electric vibration river bottom sampler, including a base, a motor, a coring inner tube, a coring outer tube and a water stop valve; the motor is installed on the top of the base, one end of the coring inner tube is connected to the water inlet end of the water stop valve, and the water outlet end of the water stop valve is connected to the bottom of the base through a connecting piece; the coring outer tube is sleeved on the outside of the coring inner tube, one end of the coring outer tube is connected to the bottom of the base, and the end of the coring inner tube away from the water stop valve is also located in the coring outer tube. The motor drives the coring outer tube to vibrate, and the coring outer tube is in direct contact with the riverbed, breaking the soil during the vibration process, which is convenient for sampling. When in use, the whole device is pressed downward to make the sampling outer tube contact with the sample, and water and the sample enter from the outer tube and flow to the inner tube. The water flows through the water inlet at the bottom of the water stop valve to push open the valve plug of the water stop valve, and the water flows into the valve body and flows away through the water outlet of the water stop valve. At the same time, the valve plug resumes the closed state under the elastic force of the spring. Most of the sample remains in the sampling inner tube. When the sampling inner tube is filled with the sample and the device is extracted upward, the water stop valve remains in a sealed state, which maintains the pressure difference between the coring inner tube and the outside world, making it difficult for the sample remaining in the coring inner tube to fall. The setting of the water stop valve allows it to remove excess river water in the core sampling inner tube and the core sampling outer tube in the process of pressing down the sampler, while also maintaining the internal and external pressure of the core sampling inner tube in the process of pulling up the sampler, ensuring that river bottom samples with high water content will not fall when the core sampling device is pulled out.

[0005] In addition, in the present invention, the motor can be set to have a stepless speed regulation function, and the sampling force at different speeds is also different, and the speed can be adjusted according to the required scene; it is ensured that the sampler will not fall out of the hand due to the sampler sinking too fast due to the excessive sampling force on the soft riverbed. It is also possible to increase the sampling force and speed up the sampling speed when encountering a harder bottom during the sampling process.

[0006] In one embodiment, a first connecting tube is provided at the bottom of the base, one end of the first connecting tube is connected to the motor, and the other end is connected to the coring outer tube. The coring outer tube is directly connected to the motor, i.e., the vibration source, through the first connecting tube, and the vibration source drives the coring outer tube to feed downward for sampling, and the coring inner tube does not directly contact the vibration source, and is only responsible for filling the soil entering the coring outer tube with samples.

[0007] In one embodiment, the connecting piece is a second connecting pipe, one end of the second connecting pipe is connected to the water stop valve, and the other end is provided with a rubber bushing on the outside, and the second connecting pipe is connected to the inner wall of the first connecting pipe through an interference fit through the rubber bushing. The rubber bushing is provided at the connection between the second connecting pipe and the first connecting pipe, so that the core inner tube will not directly contact the vibration source. The provision of the rubber bushing can reduce the vibration damage to the core inner tube caused by the vibration source, and avoid the vibration source vibrating the core inner tube at the same time and greatly affecting the sampling effect; in addition, the provision of the rubber bushing can improve the sealing performance of the first connecting pipe and the second connecting pipe.

[0008] In one embodiment, the side wall of the second connecting pipe is provided with a first water outlet connected to the water outlet port of the water stop valve, and the first connecting pipe is provided with a second water outlet; when the second connecting pipe is connected to the first connecting pipe, the first water outlet and the second water outlet overlap to achieve mutual communication. After the flowing water enters the core sampling inner tube, it flows through the water stop valve, flows out from the water outlet end of the water stop valve, and then flows out of the sampler from the first water outlet and the second water outlet.

[0009] In one embodiment, the water stop valve is sealed and connected to the second connecting pipe via a gasket. Providing the gasket can further improve the sealing performance and ensure the airtightness of the connection between the water stop valve and the core inner pipe.

[0010] In one embodiment, a leak-proof flap is provided at one end of the coring inner tube away from the water stop valve. The leak-proof flap is provided on the coring inner tube, and the leak-proof flap can prevent the sample from falling to a certain extent; in the present invention, through the combined design of the leak-proof flap and the water stop valve, the one-way flow sealing of the water stop valve is utilized to maintain the pressure difference between the coring inner tube and the outside world, and combined with the leak-proof effect of the leak-proof flap, the sampling efficiency can be further improved, and the sample can be effectively prevented from falling from the coring inner tube.

[0011] In one embodiment, the diameter of the end of the coring outer tube away from the first connecting tube is smaller than the diameter of the coring inner tube. The diameter of the end of the coring outer tube is smaller than the diameter of the coring inner tube, so that if the coring inner tube is loose during the sampling process, the coring tube can be prevented from falling out directly and causing loss.

[0012] In one embodiment, a handle is further included, and a connection seat for mounting the handle is provided on the top of the base, and the handle is detachably connected to the connection seat. The handle is provided for easy operation, and when in use, the operator can directly hold the handle to complete the sampling operation.

[0013] In one embodiment, several extension tubes are also included, and the extension tubes are detachably connected to each other, one end of the extension tube is detachably connected to the handle, and the other end is detachably connected to the connection seat. By providing the extension tubes, the length of the handle can be changed according to actual needs, so that the operation can be carried out in deeper waters; it can be applied to operations in scenes with different water depths, which is more convenient for operators to operate.

[0014] In one embodiment, a waterproof box is provided on the base, the motor is arranged inside the waterproof box, and a waterproof connector is provided on the waterproof box. The waterproof box is installed to ensure that the motor does not directly contact water and cause a short circuit, wherein the waterproof connector on the waterproof box plays a waterproof role when connecting an external power supply.

[0015] Compared with the prior art, the beneficial effects are: the handheld electric vibration river bottom sampler provided by the present invention is simple in structure, lightweight, and easy to carry and operate; in addition, by adding a water stop valve, the river water entering the core sampling inner tube can be discharged while ensuring normal operation, and the pressure inside and outside the tube body can be maintained to ensure that the sample does not fall. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the explosion of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 3 The present invention Figure 2 Middle BB section view.

[0019] Figure 4 The present invention Figure 1 Middle AA section view.

[0020] Figure 5 The present invention Figure 1 Schematic diagram of the structure from the perspective of middle E.

[0021] Description of the drawings: 1. Base; 2. Motor; 3. Coring inner tube; 4. Coring outer tube; 5. Water stop valve; 6. First connecting tube; 7. Second connecting tube; 8. First water outlet; 9. Second water outlet; 10. Leak-proof flap; 11. Handle; 12. Connecting seat; 13. Extension tube; 14. Waterproof box; 15. Valve body; 16. Valve plug; 17. Spring; 18. Mounting seat. DETAILED DESCRIPTION

[0022] The drawings are only for illustrative purposes and should not be construed as limiting the present invention. To better illustrate the present embodiment, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and should not be construed as limiting the present invention.

[0023] like Figures 1 to 5 As shown, a handheld electric vibration riverbed sampler includes a base 1, a motor 2, a coring inner tube 3, a coring outer tube 4 and a water stop valve 5; the motor 2 is installed on the top of the base 1, one end of the coring inner tube 3 is connected to the water inlet end of the water stop valve 5, and the water outlet end of the water stop valve 5 is connected to the bottom of the base 1 through a connecting piece; the coring outer tube 4 is sleeved on the outside of the coring inner tube 3, one end of the coring outer tube 4 is connected to the bottom of the base 1, and the end of the coring inner tube 3 away from the water stop valve 5 is also located in the coring outer tube 4. The motor 2 drives the coring outer tube 4 to vibrate, and the coring outer tube 4 is in direct contact with the riverbed, achieving effects such as breaking the soil during the vibration process, which is convenient for sampling; when in use, the entire device is pressed downward to make the sampling outer tube contact with the sample, and the water flow and the sample enter from the outer tube and flow to the inner tube. The water flow pushes open the valve plug 16 of the water stop valve 5 through the water inlet at the bottom of the water stop valve 5, and the water flow enters the valve body 15 and flows away through the water outlet of the water stop valve 5. At the same time, the valve plug 16 restores the closed state under the elastic force of the spring 17; most of the sample remains in the sampling inner tube. When the sampling inner tube is filled with the sample and the device is extracted upward, the water stop valve 5 remains in a sealed state, which maintains the pressure difference between the coring inner tube 3 and the outside world, making it difficult for the sample remaining in the coring inner tube 3 to fall off. The setting of the water stop valve 5 allows it to remove excess river water in the core sampling inner tube 3 and the core sampling outer tube 4 during the process of pressing down the sampler, while also maintaining the internal and external pressures of the core sampling inner tube 3 during the process of pulling up the sampler, ensuring that riverbed samples with a high water content will not fall when the core sampling device is pulled out.

[0024] In addition, in the present invention, the motor 2 can be set to have a stepless speed regulation function, and the sampling force at different speeds is also different, and the speed can be adjusted according to the required scene; it is ensured that the sampler will not fall out of the hand due to the sampler sinking too fast due to the excessive sampling force on the soft riverbed. It is also possible to increase the sampling force and speed up the sampling speed when encountering a harder bottom during the sampling process.

[0025] In one embodiment, if Figure 1 and Figure 2 As shown, a first connecting tube 6 is provided at the bottom of the base 1, one end of the first connecting tube 6 is connected to the motor 2, and the other end is connected to the coring outer tube 4, and the coring outer tube 4 and the first connecting tube 6 are connected by threads. The coring outer tube 4 is directly connected to the motor 2, i.e., the vibration source, through the first connecting tube 6, and the vibration source drives the coring outer tube 4 to feed downward for sampling, and the coring inner tube 3 does not directly contact the vibration source, and is only responsible for filling the soil entering the coring outer tube 4 with samples.

[0026] In one embodiment, if Figure 1 and Figure 2 As shown, the connecting piece is a second connecting pipe 7, one end of which is connected to the water stop valve 5, and the other end is provided with a rubber bushing on the outside, and the second connecting pipe 7 is connected to the inner wall of the first connecting pipe 6 through an interference fit through the rubber bushing. The rubber bushing is provided at the connection between the second connecting pipe 7 and the first connecting pipe 6, so that the core inner tube 3 will not directly contact the vibration source. The provision of the rubber bushing can reduce the vibration damage to the core inner tube 3 caused by the vibration source, and avoid the vibration source from vibrating the core inner tube 3 at the same time and greatly affecting the sampling effect; in addition, the provision of the rubber bushing can improve the sealing performance of the first connecting pipe 6 and the second connecting pipe 7.

[0027] In one embodiment, if Figure 1 and Figure 2 As shown, the side wall of the second connecting pipe 7 is provided with a first water outlet 8 connected to the water outlet of the water stop valve 5, and the first connecting pipe 6 is provided with a second water outlet 9; when the second connecting pipe 7 is connected to the first connecting pipe 6, the first water outlet 8 and the second water outlet 9 overlap and are connected to each other. After the flowing water enters the core inner tube 3, it flows through the water stop valve 5, flows out from the water outlet end of the water stop valve 5, and then flows out of the sampler from the first water outlet 8 and the second water outlet 9.

[0028] In one embodiment, the water stop valve 5 is sealed and connected to the second connecting pipe 7 via a gasket. The gasket can further improve the sealing performance and ensure the airtightness of the connection between the water stop valve 5 and the core inner pipe 3.

[0029] In some embodiments, Figure 3As shown, the water stop valve 5 includes a valve body 15, a valve plug 16 and a spring 17. One end of the valve body 15 is the water outlet end, and the other end is the water inlet end. A mounting seat 18 is provided at the axis of the valve body 15, and a through hole is provided in the middle of the mounting seat 18. The valve plug 16 includes a connecting column and a plug body. One end of the connecting column is inserted into the through hole and slidably connected to the mounting seat 18, and the other end of the connecting column is connected to the plug body. The plug body is provided at the water outlet end of the valve body 15 to block the water outlet of the valve body 15. The spring 17 is sleeved on the connecting column, and one end of the spring 17 is connected to the mounting seat 18, and the other end is connected to the connecting column. When in use, the flowing water pushes the valve plug 16 upward, so that the water outlet of the valve body 15 is opened, and the water flow can flow. When the water flow no longer pushes upward, the valve plug 16 returns to its original state under the action of the spring 17 and continues to block the valve port.

[0030] In one embodiment, if Figure 1 and Figure 3 As shown, a leak-proof flap 10 is provided at one end of the coring inner tube 3 away from the water stop valve 5. The leak-proof flap 10 is provided on the coring inner tube 3, and the leak-proof flap 10 can prevent the sample from falling to a certain extent; in the present invention, through the combined design of the leak-proof flap 10 and the water stop valve 5, the one-way flow sealing of the water stop valve 5 is utilized to maintain the pressure difference between the coring inner tube 3 and the outside world, combined with the leak-proof effect of the leak-proof flap 10, the sampling efficiency can be further improved, and the sample can be effectively prevented from falling from the coring inner tube 3.

[0031] In some embodiments, Figure 3 As shown, the anti-leakage flap 10 is a hollow conical column structure surrounded by a plurality of conical pieces, the larger end of the conical column structure bottom surface is connected to the inner wall at the orifice of the core inner tube 3, and the other end faces the water stop valve 5.

[0032] In one embodiment, if Figure 3 As shown, the diameter of the end of the coring outer tube 4 away from the first connecting tube 6 is smaller than the diameter of the coring inner tube 3. The diameter of the end of the coring outer tube 4 is smaller than the diameter of the coring inner tube 3, so that during the sampling process, if the coring inner tube 3 is loose, the coring tube can be prevented from falling out directly and causing loss.

[0033] In one embodiment, if Figures 1 to 3 As shown, it also includes a handle 11. A connecting seat 12 for mounting the handle 11 is provided on the top of the base 1. The handle 11 is detachably connected to the connecting seat 12. The handle 11 is provided for easy operation. When in use, the operator can directly hold the handle 11 to complete the sampling operation.

[0034] In one embodiment, if Figure 1As shown, it also includes a plurality of extension tubes 13, which are detachably connected to each other, one end of the extension tube 13 is detachably connected to the handle 11, and the other end is detachably connected to the connection seat 12. By providing the extension tube 13, the length of the handle 11 can be changed according to actual needs, so that it can also be operated in deeper waters; it can be applied to operations in scenes with different water depths, which is more convenient for operators to operate.

[0035] In one embodiment, if Figures 1 to 4 As shown, a waterproof box 14 is provided on the base 1, the motor 2 is arranged inside the waterproof box 14, and a waterproof connector is provided on the waterproof box 14. The waterproof box 14 is installed to ensure that the motor 2 does not directly contact water and cause a short circuit, wherein the waterproof connector on the waterproof box 14 plays a waterproof role when connecting an external power supply.

[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

[0042] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A handheld electric vibration riverbed sampler, characterized in that: The invention comprises a base (1), a motor (2), a coring inner tube (3), a coring outer tube (4) and a water stop valve (5); the motor (2) is installed on the top of the base (1); one end of the coring inner tube (3) is connected to the water inlet end of the water stop valve (5); and the water outlet end of the water stop valve (5) is connected to the bottom of the base (1) through a connecting piece; the coring outer tube (4) is sleeved on the outside of the coring inner tube (3); one end of the coring outer tube (4) is connected to the bottom of the base (1); and the end of the coring inner tube (3) away from the water stop valve (5) is also located in the coring outer tube (4); The water stop valve (5) comprises a valve body (15), a valve plug (16) and a spring (17); one end of the valve body (15) is a water outlet end, and the other end is a water inlet end; a mounting seat (18) is provided at the axis center of the valve body (15); a through hole extending axially therethrough is provided in the middle of the mounting seat (18); the valve plug (16) comprises a connecting column and a plug body; one end of the connecting column is inserted into the through hole and is slidably connected to the mounting seat (18); the other end of the connecting column is connected to the plug body; the plug body is provided at the water outlet end of the valve body (15) and is used to block the water outlet of the valve body (15); the spring (17) is sleeved on the connecting column; one end of the spring (17) is connected to the mounting seat (18), and the other end is connected to the connecting column.

2. The handheld electric vibration riverbed sampler according to claim 1 is characterized in that: A first connecting tube (6) is provided at the bottom of the base (1); one end of the first connecting tube (6) is connected to the motor (2), and the other end is connected to the core outer tube (4).

3. The handheld electric vibration riverbed sampler according to claim 2 is characterized in that: The connecting piece is a second connecting pipe (7), one end of which is connected to the water stop valve (5), and the other end is sleeved with a rubber bushing. The second connecting pipe (7) is connected to the inner wall of the first connecting pipe (6) through an interference fit via the rubber bushing.

4. The handheld electric vibration riverbed sampler according to claim 3 is characterized in that: The side wall of the second connecting pipe (7) is provided with a first water outlet (8) which is connected to the water outlet of the water stop valve (5), and the first connecting pipe (6) is provided with a second water outlet (9); when the second connecting pipe (7) is connected to the first connecting pipe (6), the first water outlet (8) and the second water outlet (9) overlap to achieve mutual communication.

5. The handheld electric vibration riverbed sampler according to claim 3 is characterized in that: The water stop valve (5) is sealedly connected to the second connecting pipe (7) via a gasket.

6. The handheld electric vibration riverbed sampler according to claim 4, characterized in that: An anti-leakage flap (10) is provided at one end of the core-taking inner tube (3) away from the water stop valve (5).

7. The handheld electric vibration riverbed sampler according to claim 4, characterized in that: The diameter of the core-taking outer tube (4) at the end away from the first connecting tube (6) is smaller than the diameter of the core-taking inner tube (3).

8. The handheld electric vibration riverbed sampler according to any one of claims 1 to 7, characterized in that: It also comprises a handle (11), and a connecting seat (12) for mounting the handle (11) is provided on the top of the base (1), and the handle (11) and the connecting seat (12) are detachably connected.

9. The handheld electric vibration riverbed sampler according to claim 8, characterized in that: It also comprises a plurality of extension tubes (13), wherein the extension tubes (13) are detachably connected to each other, one end of the extension tube (13) is detachably connected to the handle (11), and the other end is detachably connected to the connection seat (12).

10. The handheld electric vibration riverbed sampler according to claim 8, characterized in that: The base (1) is provided with a waterproof box (14), the motor (2) is arranged inside the waterproof box (14), and the waterproof box (14) is provided with a waterproof joint.

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