Rock soil sampling device for hydraulic engineering detection
By designing a detachable drive structure and snap-fit mechanism, the convenience problem caused by the fixed connection of the sampling tube in the existing soil and rock sampling device is solved. This realizes the split design of the sampling device and the convenience of sample unloading, thereby improving the convenience of water conservancy project testing.
Patent Information
- Application Number
- CN202520446252.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing soil and rock sampling devices have fixed connections between the sampling tube and the driving component, which makes it inconvenient to unload the sample after sampling, affecting the ease of use and portability.
A detachable drive structure was designed, which allows the sampling device to be set up in a split manner. The sampling cylinder can be detached and installed through a snap-fit mechanism, including the cooperation of snap-fit block, connecting rod, pressure plate and snap-fit spring, which facilitates the position adjustment of the sampling cylinder and sample unloading.
This improves the ease of use of the device, makes it easier to store and carry the sampling device, simplifies the sample unloading process, and enhances the practical value of the device.
Smart Images

Figure CN223940568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of soil and rock sampling technology, and more specifically, to a soil and rock sampling device for water conservancy engineering testing. Background Technology
[0002] In water conservancy projects, soil samples are collected from underground using specific technical means for subsequent testing and analysis. This sampling work is an important part of geotechnical engineering investigation, aiming to provide accurate geological data for the design and construction of water conservancy projects. Sampling work requires the use of sampling equipment.
[0003] Based on the above, the inventors have discovered that existing sampling devices use a rotating sampling cylinder to fix soil and rock samples. However, the sampling cylinder is generally fixedly connected to the driving component, which makes it inconvenient to unload the soil and rock samples afterward, affecting the convenience of the sampling work. Therefore, in view of this, the inventors have studied and improved the existing structure to provide a soil and rock sampling device for water conservancy engineering testing, in order to achieve a more practical purpose. Utility Model Content
[0004] 1. Technical problems to be solved
[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a soil and rock sampling device for water conservancy engineering testing. This solution features a detachable drive structure, making the sampling device modular for easy storage and carrying, thus solving the problem of bulky and inconvenient device use. Furthermore, the detachable sampling components facilitate the installation and removal of the sampling parts, making sample unloading easier and further improving the ease of use of the device.
[0006] 2. Technical Solution
[0007] To solve the above problems, the present invention adopts the following technical solution.
[0008] A soil and rock sampling device for water conservancy engineering testing includes a support frame, a threaded ring internally connected to the support frame, a handle on the top of the threaded ring, a sampling cylinder snapped onto the top of the threaded ring, and a pair of snapping mechanisms inside the threaded ring. A snapping sleeve is fixedly connected to the bottom end of the handle, a pair of connecting grooves are opened on the inner side of the upper end of the sampling cylinder, and a pair of positioning rods are fixedly connected to the top of the sampling cylinder.
[0009] The locking mechanism includes a locking block, a connecting rod is fixedly connected to one side of the locking block, a pressure plate is fixedly connected to the top of the connecting rod, and a locking spring is sleeved on the outer side of the connection between the connecting rod and the locking block.
[0010] Furthermore, a set of feet is fixedly connected to the bottom outer side of the support frame, and a handle extends through the top of the support frame.
[0011] Furthermore, the sampling tube extends through the bottom of the support frame, and the bottom end of the sampling tube is inclined.
[0012] Furthermore, the positioning rod passes through the threaded ring, and the snap-fit sleeve is snap-fitted with the positioning rod.
[0013] Furthermore, the bottom of the snap-fit block is inclined, and the snap-fit block is snap-fitted into the connecting groove.
[0014] Furthermore, the connecting rod is slidably connected to the threaded ring, and the pressure plate is located on the outer side of the top surface of the threaded ring.
[0015] Furthermore, the two ends of the snap-fit spring are fixedly connected to the snap-fit block and the inner surface of the threaded ring, respectively.
[0016] 3. Beneficial effects
[0017] Compared with existing technologies, the advantages of this utility model are:
[0018] (1) This solution uses a positioning rod to pass through the threaded ring. The handle is placed on the top of the threaded ring, so that the snap-fit sleeve is snapped with the positioning rod. The handle drives the threaded ring to rotate. Since the threaded ring is threadedly connected to the support frame, the position of the sampling tube is adjusted. The sampling tube moves downward and goes deep into the ground to carry out soil and rock sampling. Then the handle is rotated in the opposite direction to reset the sampling tube. Compared with the existing technology, the detachable drive structure is set up so that the sampling device is set up in a split manner, which is convenient for storage and carrying, and solves the problem of the device being bulky and inconvenient to use.
[0019] (2) By setting a snap-fit mechanism, the installation of the sampling tube squeezes the snap-fit block to move inward and compresses the snap-fit spring to deform until the connecting groove and the snap-fit block are at the same horizontal position. Under the action of the snap-fit spring, the snap-fit block resets and snaps into the connecting groove, thus fixing the position of the sampling tube. Conversely, pressing the pressure plate inward and moving the pressure plate in conjunction with the connecting rod separates the snap-fit block from the connecting groove, so that the sampling tube can be removed. Compared with the prior art, the detachable sampling component is set up, which facilitates the installation and removal of the sampling component and makes it easier to unload the sample, further improving the ease of use of the device. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a cross-sectional view of the overall structure of this utility model;
[0022] Figure 3This is a structural exploded view of the threaded ring and sampling cylinder of this utility model;
[0023] Figure 4 This is a schematic diagram of the snap-fit mechanism of this utility model.
[0024] The following are the labels in the diagram: 1. Support frame; 2. Threaded ring; 3. Handle; 4. Sampling cylinder; 5. Snap-fit mechanism; 6. Snap-fit sleeve; 7. Connecting groove; 8. Positioning rod; 9. Snap-fit block; 10. Connecting rod; 11. Pressure plate; 12. Snap-fit spring. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Example:
[0027] Please see Figure 1-4 A soil and rock sampling device for water conservancy engineering testing includes a support frame 1, a threaded ring 2 is threadedly connected inside the support frame 1, a handle 3 is provided on the top of the threaded ring 2, a sampling cylinder 4 is snapped onto the top of the threaded ring 2, and a pair of snapping mechanisms 5 are provided inside the threaded ring 2. A snapping sleeve 6 is fixedly connected to the bottom end of the handle 3, a pair of connecting grooves 7 are opened on the inner side of the upper end of the sampling cylinder 4, and a pair of positioning rods 8 are fixedly connected to the top of the sampling cylinder 4.
[0028] The snap-fit mechanism 5 includes a snap-fit block 9. A connecting rod 10 is fixedly connected to one side of the snap-fit block 9. A pressure plate 11 is fixedly connected to the top of the connecting rod 10. A snap-fit spring 12 is sleeved on the outer side of the connection between the connecting rod 10 and the snap-fit block 9. The snap-fit mechanism 5 is provided in order to realize the quick loading and unloading of the sampling cylinder 4 and facilitate the removal of the sample.
[0029] See Figure 1 A set of feet is fixedly connected to the bottom outer side of the support frame 1. The handle 3 passes through the top of the support frame 1. The support frame 1 is fixed at the sampling position by the feet. The handle 3 is rotated.
[0030] See Figure 2 The sampling tube 4 penetrates the bottom of the support frame 1, and the bottom end of the sampling tube 4 is set at an angle. The sampling tube 4 moves downward and goes deep into the ground to carry out soil and rock sampling work.
[0031] See Figure 3The positioning rod 8 passes through the threaded ring 2, and the snap-fit sleeve 6 is snapped into the positioning rod 8 so that the positioning rod 8 passes through the threaded ring 2. Then the snap-fit sleeve 6 is snapped into the positioning rod 8, and the handle 3 drives the threaded ring 2 to rotate, thereby adjusting the position of the sampling cylinder 4.
[0032] See Figure 3 The bottom of the snap-fit block 9 is inclined, and the snap-fit block 9 is snap-fitted with the connecting groove 7, which snaps the bottom of the sampling cylinder 4 and the threaded ring 2. The installation of the sampling cylinder 4 squeezes the snap-fit block 9 to move inward, while the compression snap-fit spring 12 deforms.
[0033] See Figure 2 The connecting rod 10 is slidably connected to the threaded ring 2. The pressure plate 11 is located on the outer side of the top surface of the threaded ring 2. Press the pressure plate 11 inward. The movement of the pressure plate 11 cooperates with the connecting rod 10 to separate the snap block 9 from the connecting groove 7, so that the sampling cylinder 4 can be removed and the sample unloading work can be carried out.
[0034] See Figure 4 The two ends of the snap-fit spring 12 are fixedly connected to the snap-fit block 9 and the inner surface of the threaded ring 2 respectively, until the connecting groove 7 and the snap-fit block 9 are at the same horizontal position. Under the action of the snap-fit spring 12, the snap-fit block 9 is reset and snapped into the connecting groove 7, and the position of the sampling cylinder 4 is fixed.
[0035] In use: First, snap the sampling cylinder 4 into the bottom of the threaded ring 2. Then, the positioning rod 8 passes through the threaded ring 2. At the same time, the installation pressing snap block 9 of the sampling cylinder 4 moves inward and compresses the snap spring 12 until the connecting groove 7 and the snap block 9 are at the same horizontal position. Under the action of the snap spring 12, the snap block 9 resets and snaps into the connecting groove 7, thus fixing the position of the sampling cylinder 4. Then, fix the support frame 1 in the sampling position with the base feet. Then, place the handle 3 on the top of the threaded ring 2 so that the snap sleeve 6 snaps into the positioning rod 8. Drive the threaded ring 2 to rotate through the handle 3. Since the threaded ring 2 is threadedly connected to the support frame 1, the position of the sampling cylinder 4 is adjusted. The sampling cylinder 4 moves downward and goes deep into the ground to carry out soil and rock sampling. Then, rotate the handle 3 in the opposite direction to reset the sampling cylinder 4 and press the pressure plate 11 inward. The movement of the pressure plate 11 cooperates with the connecting rod 10 to separate the snap block 9 from the connecting groove 7. The sampling cylinder 4 can then be removed to unload the sample.
[0036] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0037] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.
Claims
1. A soil and rock sampling device for water conservancy engineering testing, comprising a support frame (1), wherein a threaded ring (2) is internally threaded onto the support frame (1), and a handle (3) is provided on the top of the threaded ring (2), characterized in that: The top of the threaded ring (2) is fitted with a sampling cylinder (4), and the inside of the threaded ring (2) is fitted with a pair of snap-fit mechanisms (5). The bottom of the handle (3) is fixedly connected with a snap-fit sleeve (6). The upper end of the sampling cylinder (4) is provided with a pair of connecting grooves (7) on the inner side, and the top of the sampling cylinder (4) is fixedly connected with a pair of positioning rods (8). The snap-fit mechanism (5) includes a snap-fit block (9), a connecting rod (10) is fixedly connected to one side of the snap-fit block (9), a pressure plate (11) is fixedly connected to the top of the connecting rod (10), and a snap-fit spring (12) is sleeved on the outer side of the connection between the connecting rod (10) and the snap-fit block (9).
2. The soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The bottom of the support frame (1) is fixedly connected to a set of feet on the outer side, and the handle (3) passes through the top of the support frame (1).
3. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The sampling tube (4) penetrates the bottom of the support frame (1), and the bottom end of the sampling tube (4) is set at an inclination.
4. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The positioning rod (8) passes through the threaded ring (2), and the snap-fit sleeve (6) is snap-fitted to the positioning rod (8).
5. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The bottom of the snap-fit block (9) is inclined, and the snap-fit block (9) is snap-fitted with the connecting groove (7).
6. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The connecting rod (10) is slidably connected to the threaded ring (2), and the pressure plate (11) is located on the outer side of the top surface of the threaded ring (2).
7. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The two ends of the snap-fit spring (12) are fixedly connected to the snap-fit block (9) and the inner surface of the threaded ring (2), respectively.