Combined device for underground water sampling

Abstract

The utility model discloses a combined device for underground water sampling. The combined device comprises a plurality of Beller tubes, an insertion piece and a locking piece, at least four annular sliding grooves are formed in the Beller tube in the length direction of a tube body, and every two annular sliding grooves form a group. A sliding piece is arranged in the annular sliding groove in a sliding mode, the sliding piece is provided with a protruding part, and the protruding part protrudes out of the Beller tube body; the inserting piece is fixed on one group of protruding parts, and the locking piece is fixed on the other group of protruding parts; and the inserting piece and the locking piece can be matched and locked, so that the Beller tubes are combined pairwise to form a Beller tube group. The sliding piece can slide in the annular sliding groove, so that the positions of the inserting piece and the locking piece are adjusted, and the effect of assembling a plurality of Beller tubes is achieved. While the water taking amount is increased, the water taking requirements of well mouths with different sizes can be met, and the construction time is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of groundwater detection, in particular to a combined device for groundwater sampling. Background Technique

[0002] A Bailer is a commonly used groundwater sampling tool, also known as a bucket-type sampler or water lifter. It is usually used to collect water samples from places with relatively shallow groundwater levels (such as wells, shallow groundwater, aquifers, etc.) for water quality analysis or other related experiments. The structure of the Bailer is relatively simple and usually consists of a transparent plastic or metal pipe body, a sealable bottom, and a detachable top. The bottom usually has a valve or plug to control the entry and exit of water samples. The top has an opening for connecting a water lifting tool (such as a water lifting rope or a water lifting rod).

[0003] The most commonly used Bailer size is 38mm x 915mm, with a total length of 965mm, which can be applied to the manual sampling of the common well pipe inner diameters of 50mm, 65mm, 80mm, 100mm, 125mm, 150mm, and 200mm in current groundwater. However, when the volume of well water is relatively large and the inner diameter of the well pipe is above 80, if only one Bailer is used for sampling operation each time, it will be time-consuming and laborious. Content of the Utility Model

[0004] Aiming at the above defects, the purpose of the utility model is to provide a combined device for groundwater sampling to increase the water intake and shorten the construction time.

[0005] To achieve this purpose, the utility model adopts the following technical scheme: A combined device for groundwater sampling, comprising a plurality of Bailers, an insert, and a lock;

[0006] At least four annular chutes are opened along the length direction of the pipe body of the Bailer, and two of the annular chutes are in a group;

[0007] A sliding member is slidably arranged in the annular chute, and the sliding member is provided with a protruding part, and the protruding part protrudes from the pipe body of the Bailer;

[0008] The insert is fixed to a group of protruding parts, and the lock is fixed to another group of protruding parts;

[0009] The insert and the lock can be cooperatively locked to combine the Bailers in pairs to form a Bailer group.

[0010] Preferably, a blocking part extends inward from the notch of the annular chute;

[0011] The sliding member further includes a connecting rod and a ball component;

[0012] One end of the protrusion facing the annular sliding groove is the installation end, the installation end is located in the annular sliding groove, connecting rods are fixed on both the upper and lower surfaces of the installation end, and a ball component is movably connected to the free end of the connecting rod;

[0013] The ball component is located between the blocking part and the bottom of the annular sliding groove.

[0014] Preferably, the shape of the horizontal interface of the insert is cylindrical, the shape of the horizontal interface of the locking part is C-shaped, and the opening width of the C shape is greater than the width of the protrusion.

[0015] Preferably, it further includes an outer reinforcement ring, the outer reinforcement ring is sleeved on the outer surface of the Baylor pipe group, and a locking hoop is sleeved on the outer surface of the outer reinforcement ring.

[0016] Preferably, the outer reinforcement ring is composed of multiple plastic plate members connected end to end, chain belts are respectively arranged on both sides of the plastic plate member, and a pull head is arranged on one of the chain belts.

[0017] Preferably, the width H1 between the blocking part and the bottom of the annular sliding groove is greater than the width H2 of the ball component.

[0018] Preferably, at least one through hole is provided on the plastic plate member.

[0019] One of the above technical solutions has the following advantages or beneficial effects: In the present utility model, the insert and the locking part are installed on the sliding part, and the sliding part can slide in the annular sliding groove, so as to adjust the positions of the insert and the locking part to achieve the effect of assembling multiple Baylor pipes. While increasing the water intake, it can also meet the water intake requirements of wells with different sizes, greatly shortening the construction time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic structural diagram of a Baylor pipe group according to an embodiment of the present utility model.

[0021] Figure 2 It is a schematic structural diagram of a Baylor pipe group according to another embodiment of the present utility model.

[0022] Figure 3 It is a schematic structural diagram of a Baylor pipe according to an embodiment of the present utility model.

[0023] Figure 4 It is a schematic structural diagram of a plastic plate member according to an embodiment of the present utility model.

[0024] Figure 5 It is a cross-sectional view of a Baylor pipe according to an embodiment of the present utility model.

[0025] Wherein: bailer tube 1, insert 2, locking member 3, annular chute 4, sliding member 5, protrusion 5a, connecting rod 5b, ball assembly 5c, blocking portion 6, outer reinforcement ring 7, plastic plate member 7a, chain belt 7b, pull tab 7c, through hole 8, locking hoop 9. Detailed implementation manners

[0026] The following details the implementation manners of the present utility model. Examples of the implementation manners are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0027] In the description of the implementation manners of the present utility model, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the implementation manners of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0028] In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] As Figures 1 to 5 shown, a combined device for groundwater sampling includes a plurality of bailer tubes (1), inserts (2) and locking members (3);

[0030] The bailer tube (1) is provided with at least four annular chutes (4) along the length direction of the tube body, and the annular chutes (4) are grouped in pairs;

[0031] A sliding member (5) is slidably arranged in the annular chute (4), the sliding member (5) is provided with a protrusion (5a), and the protrusion (5a) protrudes from the tube body of the bailer tube (1);

[0032] The insert (2) is fixed to a group of protrusions (5a), and the locking member (3) is fixed to another group of protrusions (5a);

[0033] The insert (2) and the locking member (3) can be cooperatively locked to combine the Baylor tubes (1) in pairs to form a group of Baylor tubes (1).

[0034] In the present utility model, the Baylor tubes (1) can be combined by the locking member (3) and the insert (2) to form a group of Baylor tubes (1), so as to increase the form of the Baylor tubes (1), increase the water intake of groundwater, and speed up the construction speed. As Figure 2 shown, it is a group of Baylor tubes (1) formed by combining two Baylor tubes (1). Since it is difficult to determine the size of the wellhead, more Baylor tubes (1) may be required during water intake. Therefore, in the present utility model, the insert (2) and the locking member (3) are installed on the sliding member (5), and the sliding member (5) can slide in the annular chute (4), so as to adjust the positions of the insert (2) and the locking member (3) to achieve the effect of assembling multiple Baylor tubes (1), as Figure 1 shown, it is a group of Baylor tubes (1) composed of three Baylor tubes (1). The present utility model can not only increase the water intake, but also meet the water intake requirements of wellheads of different sizes, greatly shortening the construction time.

[0035] Preferably, blocking portions (6) extend inwards from the notch of the annular chute (4);

[0036] The sliding member (5) further includes a connecting rod (5b) and a ball component (5c);

[0037] One end of the protruding portion (5a) facing the annular chute (4) is the installation end, the installation end is located in the annular chute (4), and the connecting rod (5b) is fixed on both the upper and lower surfaces of the installation end, and the free end of the connecting rod (5b) is movably connected to the ball component (5c);

[0038] The ball component (5c) is located between the blocking portion (6) and the bottom of the annular chute (4).

[0039] The blocking portion (6) can limit the rolling resistance component and restrict the direction of its horizontal movement, thereby preventing the sliding member (5) from falling off the annular chute (4). After installation, the two ball components (5c) are respectively abutted against the upper and lower groove walls of the annular chute (4). At this time, the upper and lower balls can slide, thereby reducing the resistance of the sliding member (5) and better adjusting the positions of the insert (2) or the locking member (3).

[0040] Preferably, the shape of the horizontal interface of the insert (2) is cylindrical, the shape of the horizontal interface of the locking member (3) is C-shaped, and the opening width of the C-shape is greater than the width of the protruding portion (5a).

[0041] Preferably, it further includes an outer reinforcement ring (7), the outer reinforcement ring is sleeved on the outer surface of the Beller tube (1) group, and a lock hoop (9) is sleeved on the outer surface of the outer reinforcement ring (7).

[0042] In order to further strengthen the connection strength between the Beller tubes (1) and prevent the Beller tubes (1) from detaching, in the present utility model, an outer reinforcement ring (7) is also provided. The outer reinforcement ring (7) can wrap the Beller tube (1) group from the outside, and then the outer reinforcement ring (7) is locked by the lock hoop (9), and the connection strength of the Beller tube (1) group is increased by extrusion.

[0043] Preferably, the outer reinforcement ring (7) is composed of a plurality of plastic plate members (7a) connected end to end. Chain belts (7b) are respectively arranged on both sides of the plastic plate member (7a), and a pull head (7c) is arranged on one of the chain belts (7b).

[0044] Since the number of Beller tubes (1) combined in the Beller tube (1) group is different, the diameters of the used outer reinforcement rings (7) are also different. At this time, it is necessary to prepare outer reinforcement rings (7) of different sizes, which is very wasteful of resources. Therefore, in an embodiment of the present utility model, the outer reinforcement ring (7) is composed of a plurality of plastic plate members (7a) connected end to end. The plastic plate member (7a) has a certain flexibility, can be bent to a certain extent, and can also provide a certain stiffness. The user can select the corresponding number of plastic plate members (7a) according to the number of Beller tubes (1) for assembly. Chain belts (7b) are respectively arranged on both sides of the plastic plate member (7a), and a zipper structure can be formed when connected end to end, and the outer reinforcement ring (7) can be quickly assembled.

[0045] Preferably, the width H1 between the blocking portion (6) and the bottom of the annular sliding groove (4) is greater than the width H2 of the ball component (5c).

[0046] Since after using the outer reinforcement ring (7), the insert (2) and the locking member (3) will also be subjected to a certain degree of extrusion. When the width H1 is greater than the width H2, a certain avoidance space can be given to the sliding member (5), so as to prevent the ball component (5c) from being extruded and damaged.

[0047] Preferably, at least one through hole (8) is opened in the plastic plate member (7a).

[0048] During use, the outer reinforcement ring (7) may detach due to the aging of the lock hoop (9). At this time, the outer reinforcement ring (7) will remain in the well. If the depth of the water layer is relatively deep, it is difficult to salvage the outer reinforcement ring (7). Therefore, in the present utility model, a through hole (8) is opened in the plastic plate member (7a), and a traction rope can be tied to the through hole (8). Even if the outer reinforcement detaches, it can be pulled out of the water well through the traction rope.

[0049] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. 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 a suitable manner in any one or more embodiments or examples.

[0050] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A combined device for groundwater sampling, characterized in that, It includes several bell tubes, inserts and locks; At least four annular chutes are formed along the length direction of the bell tube body, and the annular chutes are grouped in pairs; Sliding members are slidably arranged in the annular chutes, and the sliding members are provided with protrusions protruding from the bell tube body; The insert is fixed to one group of protrusions, and the lock is fixed to the other group of protrusions; The insert and the lock can be cooperatively locked to combine the bell tubes in pairs to form a bell tube group.

2. The combined device for groundwater sampling according to claim 1, characterized in that, Blocking portions extend inwards from the openings of the annular chutes respectively; The sliding member further includes a connecting rod and a ball assembly; One end of the protrusion facing the annular chute is an installation end located in the annular chute, and the connecting rods are fixed to both the upper and lower surfaces of the installation end, and the free ends of the connecting rods are movably connected with the ball assembly; The ball assembly is located between the blocking portion and the bottom of the annular chute; 3. The combined device for groundwater sampling according to claim 2, wherein, The shape of the horizontal interface of the insert is cylindrical, the shape of the horizontal interface of the lock is C-shaped, and the opening width of the C-shape is greater than the width of the protrusion; 4. The combined device for groundwater sampling according to claim 2, wherein, It further includes an outer reinforcement ring sleeved on the outer surface of the bell tube group, and a lock hoop is sleeved on the outer surface of the outer reinforcement ring; 5. The combined device for groundwater sampling according to claim 4, characterized in that, The outer reinforcement ring is composed of multiple plastic plate members connected end to end, and chain belts are respectively arranged on both sides of the plastic plate members, and a pull head is arranged on one of the chain belts; 6. The combined device for groundwater sampling according to claim 4, wherein, The width H1 between the blocking portion and the bottom of the annular chute is greater than the width H2 of the ball assembly; 7. The combined device for groundwater sampling according to claim 5, characterized in that, At least one through hole is formed in the plastic plate member.

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