Engineering foundation detection sampling device

Abstract

The utility model relates to the field of foundation detection sampling, and discloses an engineering foundation detection sampling device which comprises a body structure and an improved structure, the body structure comprises a needle tube, one end of the needle tube is communicated with a liquid inlet tube, the other end of the needle tube is closed, and the end of the liquid inlet tube is connected with a needle head; meanwhile, a push rod movably penetrating through the closed end is arranged in the needle tube, one end of the push rod is connected with a piston located in the needle tube, and the other end of the push rod is connected with a tail pusher located outside; in addition, two lug blocks are symmetrically installed at the position, close to the closed end, of the outer portion of the needle tube, and connecting blocks corresponding to the lug blocks are connected to the position, close to the liquid inlet tube, of the outer portion of the needle tube. According to the utility model, when a water sample is extracted, the push handle consisting of the push rod and the tail push is drawn outwards to drive the insertion rod to extend outwards, and after the water sample is extracted, the insertion rod is positioned by using the limiting mechanism, so that the insertion rod cannot move, even if the push handle is touched by mistake, the push handle cannot be pressed inwards, and the water sample in the needle tube cannot be squeezed out.

Description

Technical Field

[0001] The utility model belongs to the field of foundation detection sampling, in particular to an engineering foundation detection sampling device. Background Art

[0002] The foundation is the basis for supporting the building, and its quality and stability directly affect the safety and durability of the building. Foundation testing usually includes the following aspects:

[0003] Geological survey: Survey and analyze underground soil, rocks, groundwater and other geological conditions to understand the geological conditions under the foundation, including soil type, water content, bearing capacity and other parameters.

[0004] Foundation flatness detection: Use measuring instruments to detect the flatness and levelness of the foundation surface to ensure that the foundation surface meets the design requirements.

[0005] Bearing capacity test: Test the bearing capacity of the foundation through static load test or dynamic trigger test to determine whether it is sufficient to withstand the design load.

[0006] Foundation stability analysis: Evaluate the stability and safety of the foundation by calculating and simulating the deformation, settlement, inclination, etc. of the foundation under different loads.

[0007] Foundation material testing: Conduct quality inspection on fill soil, sand, gravel and other materials used in the foundation to ensure that they meet the design requirements.

[0008] Foundation drainage detection: Check the drainage system of the foundation to ensure smooth drainage and prevent the foundation from being damaged by moisture.

[0009] Foundation hidden danger detection: Detect and evaluate the potential hidden dangers such as cracks, looseness, corrosion, etc. in the foundation, and take timely repair and reinforcement measures.

[0010] When testing groundwater, it is necessary to draw groundwater, which can be done with a syringe. During the drawing process, since the push handle of the syringe is extended outward after drawing, it is easy to be accidentally touched and cause the push handle to be pressed, thus squeezing out the water sample from the syringe. Utility Model Content

[0011] Technical problem to be solved: How to prevent the push handle from being accidentally touched or pressed.

[0012] Technical solution: The utility model provides a water sampler, including a main body structure and an improved structure: the main body structure includes a needle tube, one end of which is connected to a liquid inlet tube and the other end is closed, and the end of the liquid inlet tube is connected to a needle; at the same time, a push rod is arranged inside the needle tube and movably passes through the closed end, one end of the push rod is connected to a piston located inside the needle tube, and the other end of the push rod is connected to a tail push rod located outside; in addition, two ear blocks are symmetrically installed on the outside of the needle tube near its closed end, and a connecting block corresponding to the ear blocks is connected to the outside of the needle tube near the liquid inlet tube; the improved structure includes a matching block installed on the tail push rod and corresponding to the ear block; in addition, a sleeve parallel to the needle tube is fixed on the inner side of the connecting block, a plug rod is inserted into the inside of the sleeve, and the outer end of the plug rod movably passes through the corresponding ear block and is fixedly connected to the matching block; at the same time, a limiting mechanism for positioning the plug rod is arranged outside the needle tube.

[0013] Furthermore, the limiting mechanism includes an external thread formed on the insert rod so as to form a screw rod, and a nut is screwed and connected to the outer circumference of the screw rod.

[0014] Furthermore, a washer may be sleeved on the outer peripheral side of the screw rod, and the washer is located between the sleeve and the nut.

[0015] Furthermore, the gasket ring may be a rubber ring or a silicone ring.

[0016] Furthermore, the backing ring may be a metal ring.

[0017] Furthermore, the closed end of the needle tube can be replaced by a cover, a stud is installed on the inner side of the cover, and at the same time, an internal thread matching the stud is provided inside the needle tube near the cover, so that the cover can be screwed on this end of the needle tube.

[0018] Furthermore, a sealing gasket is placed inside the cover, and the sealing gasket acts on the position of the needle tube opening.

[0019] Technical effect: In the present invention, when extracting water samples, the push handle composed of the push rod and the tail pusher is pulled outward, driving the insertion rod to extend outward. When the extraction is completed, the insertion rod is positioned using a limiting mechanism so that the insertion rod cannot move. In this way, even if the push handle is accidentally touched, it will not be pressed inward, so that the water sample in the syringe will not be squeezed out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2It is a main structural schematic diagram of the utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0024] Figure numerals: 1, needle tube; 2, liquid inlet tube; 3, needle; 4, push rod; 5, piston; 6, tail push; 7, ear block; 8, connecting block; 9, matching block; 10, sleeve; 11, insertion rod; 12, limiting mechanism; 1201, nut. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0026] The engineering foundation detection sampling device provided in this specific embodiment is as follows: Figure 1 , Figure 2 and Figure 3 As shown, it includes a main body structure and an improved structure, wherein: the main body structure includes a needle tube 1, one end of which is connected to a liquid inlet tube 2 and the other end is closed, and the end of the liquid inlet tube 2 is connected to a needle head 3; at the same time, a push rod 4 is provided inside the needle tube 1 and movably passes through the closed end, one end of the push rod 4 is connected to a piston 5 located inside the needle tube 1, and the other end of the push rod 4 is connected to a tail push 6 located outside, and the tail push 6 and the push rod 4 together form a push handle; in addition, two ear blocks 7 are symmetrically installed on the outside of the needle tube 1 near its closed end, and a connecting block 8 corresponding to the ear block 7 is connected to the outside of the needle tube 1 near the liquid inlet tube 2. The improved structure includes a matching block 9 installed on the tail pusher 6 and corresponding to the ear block 7; in addition, a sleeve 10 parallel to the needle tube 1 is fixed on the inner side of the connecting block 8, and a plug rod 11 is inserted inside the sleeve 10, and the outer end of the plug rod 11 is movably inserted through the corresponding ear block 7 and fixedly connected to the matching block 9; at the same time, a limiting mechanism 12 for positioning the plug rod 11 is provided outside the needle tube 1, and the limiting mechanism 12 includes an external thread provided on the plug rod 11, so that it forms a screw rod, and the outer peripheral side of the screw rod is screwed and connected with a nut 1201, and the nut 1201 is used to screw in the direction close to the sleeve 10, so that even if the push handle is accidentally touched, it will not be pressed inward. On this basis, in order to avoid the problem of thread slippage of the nut, a gasket can also be sleeved on the outer peripheral side of the screw rod, and the gasket is located between the sleeve 10 and the nut 1201. This gasket can be a rubber ring, a silicone ring, or a metal ring.

[0027] The closed end of the needle tube 1 in the above-mentioned method can be replaced by a cover, and a stud is installed inside the cover. At the same time, an internal thread matching the stud is provided inside the needle tube 1 near the cover, so that the cover can be screwed on this end of the needle tube 1. In this way, when the cover is removed, the push handle and the insertion rod can also be removed, so that the gasket can be replaced when it is damaged. In addition, in order to avoid leakage problems, a sealing gasket is placed inside the cover, and the sealing gasket acts on the opening of the needle tube 1.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An engineering foundation detection sampling device, including a main structure and an improved structure: The main body structure comprises a needle tube (1), one end of which is connected to a liquid inlet tube (2) and the other end is closed, and the end of the liquid inlet tube (2) is connected to a needle head (3); at the same time, a push rod (4) is provided inside the needle tube (1) and movably passes through the closed end, one end of the push rod (4) is connected to a piston (5) located inside the needle tube (1), and the other end of the push rod (4) is connected to a tail push rod (6) located outside; in addition, two ear blocks (7) are symmetrically installed on the outside of the needle tube (1) near the closed end thereof, characterized in that: The outside of the needle tube (1) is connected to a connection block (8) corresponding to the ear block (7) at a position close to the liquid inlet tube (2); The improved structure comprises a matching block (9) mounted on the tail pusher (6) and corresponding to the ear block (7); in addition, a sleeve (10) parallel to the needle tube (1) is fixed on the inner side of the connecting block (8); an insertion rod (11) is inserted into the inner side of the sleeve (10); the outer end of the insertion rod (11) movably passes through the corresponding ear block (7) and is fixedly connected to the matching block (9); at the same time, a limiting mechanism (12) for positioning the insertion rod (11) is arranged outside the needle tube (1).

2. The engineering foundation detection sampling device according to claim 1 is characterized in that: The limiting mechanism (12) comprises an external thread formed on the insertion rod (11) so as to form a screw rod, and a nut (1201) is screwed and connected to the outer circumference of the screw rod through the thread.

3. The engineering foundation detection sampling device according to claim 2 is characterized in that: A gasket ring may also be sleeved on the outer peripheral side of the screw rod, and the gasket ring is located between the sleeve (10) and the nut (1201).

4. The engineering foundation detection sampling device according to claim 3 is characterized in that: The gasket may be a rubber ring or a silicone ring.

5. The engineering foundation detection sampling device according to claim 3 is characterized in that: The backing ring may be a metal ring.

6. The engineering foundation detection sampling device according to claim 3 is characterized in that: The closed end of the needle tube (1) can be replaced by a sealing cap, a stud is installed on the inner side of the sealing cap, and an internal thread matching the stud is provided in the needle tube (1) at a position close to the sealing cap, so that the sealing cap can be screwed on this end of the needle tube (1).

7. The engineering foundation detection sampling device according to claim 6 is characterized in that: A sealing gasket is placed inside the cover and acts on the opening of the needle tube (1).

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