Portable water quality sampler

Abstract

The application discloses a portable water quality sampler, which comprises a collecting shell, a switching handle and a collecting head connected to the two ends of the collecting shell respectively, a circulating switching device arranged in the collecting shell, one end of the circulating switching device connected with the switching handle, the other end of the circulating switching device matched with the collecting head, and a plurality of sealed sampling bottles arranged on the circulating switching device. The portable water quality sampler has a novel structure and is convenient and practical. The sealed sampling bottles in two circulating channels can be switched through the switching handle, so that the sealed sampling bottles can be converted, and the sealed sampling bottles are pushed through the rotating switching mechanism, so that the sealed sampling bottles can be circularly sampled.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of water quality sampling, and particularly relates to a portable water quality sampler. BACKGROUND

[0002] The monitoring of water quality is one of important links of environmental protection monitoring, and the selection of a proper sampling container and the use of a correct sampling method are a prerequisite for correct analysis of water quality characteristics and an important guarantee for providing accurate data for environmental monitoring; the sampling of water quality of a water source generally uses a water quality sampler, and the standard test method for drinking water - collection and preservation of water samples (GB5750.2-2006) stipulates that when surface water such as rivers and lakes is taken, a proper container can be used for sampling in a place where water can be directly taken; when water quality is sampled, the sampling difficulty is different due to the limitation of the sampling terrain, and a large number of sampling bottles generally need to be carried, which causes a large burden on the sampling personnel, and the sampling of water quality of a source water area mostly needs the sampling personnel to sample on foot, so that the sampling is difficult and the sampling storage box is extremely troublesome. SUMMARY

[0003] The present application aims to provide a portable water quality sampler which has a novel structure, is convenient and practical, and can switch the sealed sampling bottles in two circulation channels through a switching handle, so that the sealed sampling bottles can be converted and pushed by a rotating switching mechanism to achieve the effect of circular sampling of the sealed sampling bottles.

[0004] A portable water quality sampler comprises a collection shell, a switching handle and a collection head connected to two ends of the collection shell respectively, a circulation switching device arranged in the collection shell, one end of the circulation switching device connected to the switching handle, the other end of the circulation switching device matched with the collection head, and a plurality of sealed sampling bottles arranged on the circulation switching device.

[0005] Preferably, the collection shell comprises a collection column, two symmetrical circulation channels arranged through the collection column, a guide channel arranged between the two symmetrical circulation channels and matched with the circulation switching device, a positioning guide channel formed in the inner wall of the guide channel, the two circulation channels communicated through the guide channel, a plurality of C-shaped positioning clamping grooves arranged uniformly on the inner wall of the circulation channel, a C-shaped positioning clamping ring arranged in the C-shaped positioning clamping groove and matched with the sealed sampling bottle, a positioning hole arranged on the C-shaped positioning clamping ring, a silica gel column arranged in the positioning hole and matched with the sealed sampling bottle, two avoiding grooves formed in one end of the collection column, a guide plate hinged in the avoiding groove and matched with the sealed sampling bottle, a limiting column arranged on the inner wall of the avoiding groove and matched with the guide plate, a guide return torsional spring arranged on the guide plate, and a triangular guide column arranged at one end of the guide channel and matched with the circulation switching device.

[0006] Preferably, the cycle switching device comprises a lifting mechanism and an L-shaped pushing rod, one end of the lifting mechanism movably connected with a rotary switching mechanism, the other end of the lifting mechanism hingedly connected with a switching extraction mechanism; the rotary switching mechanism and the lifting mechanism both comprise a lifting rod, one side of the lifting rod is provided with a plurality of lifting devices and lifting avoidance slots for the lifting devices, the other side of the lifting rod is provided with a plurality of push-down devices and push-down avoidance slots for the push-down devices, one end of the lifting rod in the rotary switching mechanism penetrates a switching handle and is connected with the L-shaped pushing rod, one end of the L-shaped pushing rod is arranged in the switching handle; the L-shaped pushing rod is provided with a pulling and sending handle.

[0007] Preferably, the lifting device and the push-down device both comprise a return torsion spring and a hinged rod, one end of the hinged rod is hingedly connected to the lifting rod, and the two ends of the return torsion spring are respectively connected to the lifting rod and the hinged rod; one end of the hinged rod away from the return torsion spring in the lifting device is hingedly connected with a lifting plate, the lifting plate is provided with a reset torsion spring, one end of the reset torsion spring is connected to the hinged rod, and one end of the hinged rod away from the return torsion spring in the push-down device is provided with a pressure roller.

[0008] Preferably, the switching extraction mechanism comprises a connecting rod, the two ends of the connecting rod are respectively connected with a guide crank and an auxiliary displacement device, the connecting rod is hingedly connected to the lifting rod at the connecting position of the connecting rod and the guide crank, and the guide crank is provided with a transition return torsion spring connecting the guide crank and the lifting rod; the auxiliary displacement device comprises an insertion block, one end of the insertion block is connected with a connecting screw, the insertion block is provided with an avoidance cavity, two retractors are arranged in the avoidance cavity, and the two retractors are respectively located on the two sides of the insertion block; the retractor comprises a buffer and a retraction rod, one end of the buffer is hingedly connected to the top wall in the avoidance cavity, the other end of the buffer is hingedly connected to the retraction rod, one end of the retraction rod is hingedly connected to the bottom wall in the avoidance cavity, and the other end of the retraction rod is provided with a roller.

[0009] Preferably, the sealed sampling bottle comprises a sampling bottle, two guide pressure plates and a plurality of connecting rods, two sealing grooves are formed in the side wall of the sampling bottle, a sealing ring is arranged in each of the two sealing grooves, a plurality of sampling holes are formed in the side wall of the sampling bottle between the two sealing grooves, the sampling bottle is connected with the two guide pressure plates through the plurality of connecting rods, a gap for inserting an insertion block is arranged between the two guide pressure plates, a sealing sleeve ring matched with the sealing ring is sleeved on the sampling bottle, one end of the sealing sleeve ring is connected with a positioning plate, at least two positioning sleeve rings are arranged on the side of the positioning plate close to the guide pressure plate, a return spring and a return column are arranged in the positioning sleeve ring, one end of the return column is connected with the return spring, and the other end of the return column is connected with the corresponding guide pressure plate.

[0010] Preferably, the switching handle comprises a switching rotating column, one end of the switching rotating column is connected with the handle, the other end of the switching rotating column is provided with two symmetrical switching cavities matched with the circulation channels, the switching cavities are provided with C-shaped positioning clamping grooves, the C-shaped positioning clamping grooves are provided with C-shaped positioning clamping rings matched with the sealed sampling bottles, the C-shaped positioning clamping rings are provided with positioning holes, the positioning holes are provided with silica gel columns matched with the sealed sampling bottles, the two symmetrical switching cavities are provided with a switching positioning channel through which the lifting rod passes, and the switching rotating column is provided with a push rod insertion hole through which one end of the L-shaped push rod passes.

[0011] Preferably, the collection head comprises a collection head shell, a silica gel sealing plate, a fixed pressing plate, a sealing plate and bolts, the collection head shell is provided with a tapered guide groove, the tapered guide groove is provided with a tapered sampling hole, a plurality of guide plates are arranged on the inner wall of the tapered sampling hole, the fixed pressing plate is connected to the collection head shell through the bolts, the silica gel sealing plate is arranged between the collection head shell and the fixed pressing plate, the silica gel sealing plate and the fixed pressing plate are provided with transition holes through which the sealed sampling bottles pass, the inner wall of the transition hole on the fixed pressing plate is provided with an internal thread, and the outer wall of the sealing plate is provided with an external thread matched with the internal thread.

[0012] Preferably, a plurality of cow eye ball screw holes are arranged on the end of the switching rotating column away from the handle, the cow eye ball screw holes are provided with cow eye balls, and the end of the collection column body away from the triangular guide column is provided with a plurality of cow eye ball positioning holes matched with the cow eye balls.

[0013] Preferably, an anti-deviation inclination angle D is arranged between the lifting rod and the auxiliary displacement device, and the degree of the anti-deviation inclination angle D is controlled to be between 10 degrees and 30 degrees.

[0014] Advantages:

[0015] (1) The portable water quality sampler has novel structure and is convenient and practical. The sealed sampling bottles in the two circulation channels can be switched by the switching handle, so that the sealed sampling bottles can be converted, and the sealed sampling bottles are pushed by the rotating switching mechanism to achieve the effect of circulating sampling.

[0016] (2) The portable water quality sampler can insert and pull out the sampling bottles in the collection head through the switching extraction mechanism, and can open the sampling bottles to collect samples through the switching extraction mechanism, so that the sampling bottles can be converted and sampled.

[0017] (3) The portable water quality sampler can increase the number of sampling bottles carried by designing a plurality of sampling bottles in one collection shell, and can reduce the difficulty of sampling by designing the length of the sampler according to the needs. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 This is a schematic diagram of a water quality sampler.

[0019] Figure 2 This is a schematic diagram of the internal structure of the outer casing;

[0020] Figure 3 This is a schematic diagram of the outer casing for collecting data;

[0021] Figure 4 This is a structural diagram of the switch handle;

[0022] Figure 5 A 3D view of the interior of a water sampler;

[0023] Figure 6 This is a schematic diagram of the guide plate structure;

[0024] Figure 7 for Figure 5 Enlarged view of point A in the middle;

[0025] Figure 8 for Figure 5 Enlarged view at point B in the middle;

[0026] Figure 9 for Figure 5 Enlarged view at point C;

[0027] Figure 10 This is a schematic diagram of the cyclic switching device;

[0028] Figure 11 This is a schematic diagram of the rotary switching mechanism;

[0029] Figure 12 for Figure 10 Enlarged view at point E in the middle;

[0030] Figure 13 This is a schematic diagram of the auxiliary displacement device;

[0031] Figure 14 This is a schematic diagram of the acquisition head structure;

[0032] Figure 15 Exploded view of the sealed sampling bottle;

[0033] 1-collecting shell, 11-collecting column, 12-circulation channel, 13-guiding channel, 14-bullseye positioning hole, 15-C-shaped positioning slot, 16-positioning guiding channel, 17-limiting column, 18-triangle guiding column, 19-avoiding slot, 110-C-shaped positioning ring, 111-positioning hole, 112-guiding plate, 2-switching handle, 21-switching rotating column, 22-handle, 23-bullseye screw hole, 24-switching cavity, 25-switching positioning channel, 26-push rod insertion hole, 3-collecting head, 31-collecting head shell, 32-silicone sealing plate, 33-fixing pressing plate, 34-sealing plate, 35-tapered guiding slot, 36-tapered sampling hole, 37-guiding plate, 4-circulation switching device, 41-rotary switching mechanism, 42-lifting mechanism, 43-switching extraction mechanism, 44-lifting device, 45-pushing-down device, 46-lifting rod, 47-return torsional spring, 48-pulling handle, 49-L-shaped pushing rod, 410-hinged rod, 411-pressing wheel, 412-lifting plate, 413-guiding lever, 414-connecting rod, 415-assisting displacement device, 416-connecting screw rod, 417-inserting block, 418-avoiding cavity, 419-contracting device, 420-buffer, 421-contracting rod, 422-roller, 5-sealing sampling bottle, 51-sampling bottle, 52-sampling hole, 53-sealing slot, 54-sealing ring, 55-connecting rod, 56-guiding pressing plate, 57-return column, 58-return spring, 59-sealing sleeve ring, 510-positioning plate, 511-positioning sleeve ring. DETAILED DESCRIPTION

[0034] Embodiments of the present application will be further described below with reference to the drawings.

[0035] Example 1

[0036] As Figure 1The utility model discloses a portable water quality sampler, including the collection shell 1, the collection shell 1 both ends are connected with switching handle 2 and collection head 3 respectively, be provided with circulation switching device 4 in the collection shell 1, one end of circulation switching device 4 is connected with switching handle 2, the other end of circulation switching device 4 is matched with collection head 3, be provided with a plurality of sealed sampling bottle 5 on circulation switching device 4, the collection shell 1 includes collection cylinder 11, two symmetrical circulation channels 12 are passed through on collection cylinder 11, the guide channel 13 that is matched with circulation switching device 4 is arranged between two symmetrical circulation channels 12, is seted up on the inner wall of guide channel 13 and is located guide channel 16, two circulation channels 12 are communicated through guide channel 13, evenly be provided with a plurality of C-shaped positioning clamping groove 15 on the inner wall of circulation channel 12, C-shaped positioning clamping ring 110 that is matched with sealed sampling bottle 5 is arranged in C-shaped positioning clamping groove 15, be provided with positioning hole 111 on C-shaped positioning clamping ring 110, be provided with silica gel column that is matched with sealed sampling bottle 5 in positioning hole 111, the collection cylinder 11 one end is seted up two avoid slot 19, the guide plate 112 that is matched with sealed sampling bottle 5 is hinged in avoid slot 19, be provided with limiting post 17 with guide plate 112 on the inner wall of avoid slot 19, be provided with guide return torsion spring on the guide plate 112, one end of guide channel 13 is provided with triangular guide column 18 that is matched with circulation switching device 4, circulation switching device 4 includes lifting mechanism 42 and L type push rod 49, one end swing joint of lifting mechanism 42 is provided with rotary switching mechanism 41, the other end of lifting mechanism 42 is hinged and switches and extracts mechanism 43, rotary switching mechanism 41 and lifting mechanism 42 all include lifting rod 46, one side of lifting rod 46 is provided with a plurality of lifting devices 44 and the lifting of lifting device 44 is entered lifting avoid slot, the other side of lifting rod 46 is provided with a plurality of push-down devices 45 and the push-down of push-down device 45 is entered push-down avoid slot, one end of lifting rod 46 in rotary switching mechanism 41 is passed through switching handle 2 and is connected with L type push rod 49, one end of L type push rod 49 is seted up in switching handle 2, be provided with pull and send handle 48 on L type push rod 49, lifting device 44 and push-down device 45 all include return torsion spring 47 and articulated rod 410, one end of articulated rod 410 is hinged on lifting rod 46, the both ends of return torsion spring 47 are connected on lifting rod 46 and articulated rod 410 respectively, the articulated rod 410 of lifting device 44 is hinged on the lifting plate 412 of one end away from return torsion spring 47 on, be provided with reset torsion spring on the lifting plate 412, one end of reset torsion spring is connected on articulated rod 410, the articulated rod 410 of push-down device 45 is provided with pressure roller 411 on one end away from return torsion spring 47.The switching extraction mechanism 43 comprises a connecting rod 414, the connecting rod 414 is connected with a guide crank 413 and an auxiliary displacement device 415 respectively at both ends, the connecting rod 414 is hinged on the lifting rod 46 at the connecting position of the connecting rod 414 and the guide crank 413, a transition return torsional spring connecting the guide crank 413 and the lifting rod 46 is arranged on the guide crank 413; the auxiliary displacement device 415 comprises an insertion block 417, the insertion block 417 is connected with a connecting screw rod 416 at one end, an avoiding cavity 418 is arranged on the insertion block 417, two retractors 419 are arranged in the avoiding cavity 418, and the two retractors 419 are located on both sides of the insertion block 417 respectively; the retractor 419 comprises a buffer 420 and a retraction rod 421, the buffer 420 is hinged on the top wall in the avoiding cavity 418 at one end, the buffer 420 is hinged on the retraction rod 421 at the other end, the retraction rod 421 is hinged on the bottom wall in the avoiding cavity 418 at one end, and a roller 422 is arranged on the other end of the retraction rod 421; the sealed sampling bottle 5 comprises a sampling bottle 51, two guide pressure plates 56 and a plurality of connecting rods 55, two sealing grooves 53 are formed in the side wall of the sampling bottle 51, sealing rings 54 are arranged in the two sealing grooves 53 respectively, a plurality of sampling holes 52 are formed in the side wall of the sampling bottle 51 between the two sealing grooves 53, the sampling bottle 51 is connected with the two guide pressure plates 56 through the plurality of connecting rods 55 at one end, a gap for inserting the insertion block 417 is arranged between the two guide pressure plates 56, a sealing sleeve ring 59 is sleeved on the sampling bottle 51 and cooperates with the sealing ring 54 to seal, the sealing sleeve ring 59 is connected with a positioning plate 510 at one end, at least two positioning sleeve rings 511 are arranged on the side of the positioning plate 510 close to the guide pressure plate 56, a return spring 58 and a return column 57 are arranged in the positioning sleeve ring 511, the return column 57 is connected with the return spring 58 at one end, and the return column 57 is connected with the corresponding guide pressure plate 56 at the other end; the switching handle 2 comprises a switching rotating column 21, the switching rotating column 21 is connected with a handle 22 at one end, two symmetrical switching cavities 24 cooperating with the circulation channel 12 are formed at the other end of the switching rotating column 21, a C-shaped positioning clamping groove 15 is arranged in the switching cavity 24, a C-shaped positioning clamping ring 110 cooperating with the sealed sampling bottle 5 is arranged in the C-shaped positioning clamping groove 15, a positioning hole 111 is arranged on the C-shaped positioning clamping ring 110, a silica gel column cooperating with the sealed sampling bottle 5 is arranged in the positioning hole 111, a switching positioning channel 25 for the lifting rod 46 to pass through is arranged between the two symmetrical switching cavities 24, and a push rod insertion hole 26 for the L-shaped push rod 49 to pass through is formed in the switching rotating column 21.The collection head 3 comprises a collection head shell 31, a silica gel sealing plate 32, a fixed pressing plate 33, a sealing plate 34 and bolts, the collection head shell 31 is provided with a tapered guide groove 35, the tapered guide groove 35 is provided with a tapered sampling hole 36, a plurality of guide plates 37 are arranged on the inner wall of the tapered sampling hole 36, the fixed pressing plate 33 is connected on the collection head shell 31 through bolts, the silica gel sealing plate 32 is arranged between the collection head shell 31 and the fixed pressing plate 33, the transition holes for the sealed sampling bottle 5 to pass through are penetrated through the silica gel sealing plate 32 and the fixed pressing plate 33, the inner thread is arranged on the inner wall of the transition hole on the fixed pressing plate 33, and the outer thread matched with the inner thread is arranged on the outer wall of the sealing plate 34.

[0037] When the sampler is sampling, the sealing plate 34 is opened in advance, and the rotating handle 22 is rotated to drive the switching rotating column 21 to rotate. The symmetrical switching cavities 24 in the switching rotating column 21 rotate to exchange the positions of the sealed sampling bottles 5 in the switching cavities 24. The L-shaped push rod 49 is pressed to make one end of the L-shaped push rod 49 pass through the push rod insertion hole 26 and contact the sealed sampling bottles 5 in the switching cavities 24. At the same time, the L-shaped push rod 49 applies pressure to the sealed sampling bottles 5 to make the sealed sampling bottles 5 fall into the next C-shaped positioning clasp ring 110. The sealed sampling bottles 5 are positioned by the C-shaped positioning clasp ring 110 and the silica gel column on the C-shaped positioning clasp ring 110, so that each sealed sampling bottle 5 is positioned between adjacent C-shaped positioning clasp rings 110. After the L-shaped push rod 49 is pushed down or pulled up, the rotating switching mechanism 41 and the lifting mechanism 42 are lowered or raised. When the rotating switching mechanism 41 and the lifting mechanism 42 are lowered, the lifting device 44 and the pushing-down device 45 on the rotating switching mechanism 41 and the lifting mechanism 42 are lowered at the same time. When the pushing-down device 45 is lowered, the pressure wheel 411 at one end of the hinged rod 410 of the pushing-down device 45 applies pressure to the sealed sampling bottles 5 to make the sealed sampling bottles 5 move through the C-shaped positioning clasp ring 110 by the pushing force. When the pushing-down device 45 is raised, the sealed sampling bottles 5 are in the original position but apply pressure to the hinged rod 410 to press it into the pushing-down avoidance slot, so that the pushing-down device 45 is smoothly moved above the sealed sampling bottles 5, and the sealed sampling bottles 5 in one side of the circulating channel 12 in the sampling column 11 are collectively moved downward. When the lifting device 44 is pushed down, the hinged rod 410 of the lifting device 44 and the lifting plate 412 thereon are retracted into the lifting avoidance slot, so that the lifting device 44 is smoothly moved below the sealed sampling bottles 5 and below the two guide pressure plates 56. When the lifting device 44 is raised, the lifting plate 412 lifts the guide pressure plate 56, so that the sealed sampling bottles 5 are raised into the C-shaped positioning clasp ring 110 above at the same time. The reset torsion spring 47 ensures that the hinged rod 410 is popped out of the corresponding pushing-down avoidance slot or lifting avoidance slot. The reset torsion spring ensures that the lifting plate 412 is parallel to the hinged rod 410. When the lifting plate 412 lifts the sealed sampling bottles 5, one end of the lifting plate 412 contacts the guide pressure plate 56 first. The pressure of the guide pressure plate 56 makes the lifting plate 412 adhere to the guide pressure plate 56, so that the contact surface of the lifting plate 412 and the sealed sampling bottles 5 is increased, and the sealed sampling bottles 5 are raised more stably. The reset torsion spring and the reset torsion spring 47 can ensure that the lifting plate 412 is tightly adhered to the lifting avoidance slot after entering the lifting avoidance slot.When the sealed sampling bottle 5 is switched by the switching and extracting mechanism 43, the guide rocker 413 is moved above the sealed sampling bottle 5 by the lifting of the switching and extracting mechanism 43, and the guide rocker 413 is located inside the side of the lifting rod 46 to enable the sealed sampling bottle 5 to pass smoothly without interference. The positioning plate 510 of the sealed sampling bottle 5 will press the connecting rod 414 when passing the connecting rod 414, so that the connecting rod 414 is pressed down and the guide rocker 413 is tilted up. The guide rocker 413 needs to be designed to be smaller than the gap between the two guide pressure plates 56, so that the guide rocker 413 can pass through the gap between the two guide pressure plates 56 smoothly. When the guide rocker 413 moves past the two guide pressure plates 56, the connecting screw 416 of the auxiliary displacement device 415 will be returned by the transition return torsion spring, so that the connecting screw 416 is displaced between the two guide pressure plates 56, and the two guide pressure plates 56 are clamped between the plug block 417 and the connecting rod 414 to achieve the condition of positioning the sealed sampling bottle 5. When the switching and extracting mechanism 43 is lowered, the connecting rod 414 pushes the two guide pressure plates 56, so that the sealed sampling bottle 5 is inserted into the conical sampling hole 36, and at the same time the sampling end of the sealed sampling bottle 5 passes through the conical sampling hole 36. When the connecting rod 414 continues to push the guide pressure plate 56, the guide pressure plate 56 will move towards the positioning plate 510, so that the sampling hole 52 moves out of the sealing sleeve 59, and the collected water enters the sampling bottle 51 through the sampling hole 52. After the collection is completed, the switching and extracting mechanism 43 is lifted, and the return spring 58 pushes the return column 57 and the guide pressure plate 56 connected with the return column 57 to return during the lifting process. When the guide pressure plate 56 is away from the positioning plate 510, the guide pressure plate 56 will drive the connecting rod 55 and the sampling bottle 51 into the sealing sleeve 59, and the sampling hole 52 is sealed by the sealing ring 54 on both sides of the sampling hole 52, completing the water sample collection. At the same time, the switching and extracting mechanism 43 continues to rise, so that the roller 422 on the plug block 417 of the switching and extracting mechanism 43 pulls the two guide pressure plates 56 to rise. During the lifting process, the triangular guide column 18 will cooperate with the guide rocker 413 to make one end of the guide rocker 413 tilt up quickly, and at the same time make the auxiliary displacement device 415 rotate around the hinge connecting the connecting rod 414 and the guide rocker 413, so that the sealed sampling bottle 5 rotates along the rotating track of the auxiliary displacement device 415 in the guide loop 12. At the same time, the inclination of the two guide plates 112 ensures the track of the sealed sampling bottle 5 when it rises, so that the sealed sampling bottle 5 slides in the direction of the guide loop 12 along the inclination of the guide plate 112 during the lifting process. The double-direction guide achieves the movement while correcting the accuracy of the sealed sampling bottle 5 entering the guide loop 12. The roller 422 ensures the smoothness of the movement of the sealed sampling bottle 5. After the sealed sampling bottle 5 enters the guide loop 12, it will be directly clamped into the C-shaped positioning clasp 110 for positioning.The guide plate 112 is ensured to be in the state of correcting the sealed sampling bottle 5 by the guide return torsion spring, the guide plate 112 can be pressed to the vertical state by the sealed sampling bottle 5 when the sealed sampling bottle 5 is lowered, so that the guide plate 112 does not affect the sealed sampling bottle 5 into the collection head 3, the rotation of the guide plate 112 is prevented by the limiting column 17 to cause the guide offset of the sealed sampling bottle 5, the rotation of the guide plate 112 is prevented by the limiting column 17, so that the sealed sampling bottle 5 will not be in contact with the inclined lower end of the guide plate 112, the rotation is stabilized, the L-shaped push rod 49 is controlled to ascend and descend in a cycle, so that the sealed sampling bottle 5 completes the upward and downward conveying and sampling, and the sealed sampling bottle 5 is switched to ascend and descend by the rotary switching column 21.

[0038] Embodiment 2

[0039] On the basis of embodiment 1, a plurality of cow eye screw holes 23 are arranged on the end of the switching column 21 away from the handle 22, a cow eye is arranged in the cow eye screw hole 23, a plurality of cow eye positioning holes 14 matched with the cow eye are arranged on the end of the collection column 11 away from the triangular guide column 18, and a deviation prevention inclination angle D is arranged between the lifting rod 46 and the auxiliary displacement device 415.

[0040] The angle of rotation of the switching column 21 is determined by the cow eye screw hole 23 matched with the cow eye, so that the switching cavity 24 on the switching column 21 is aligned with the circulation channel 12 on the collection column 11, and the misalignment is avoided to cause the lifting of the sealed sampling bottle 5 to be blocked or unable to displace between the circulation channel 12 and the switching cavity 24, the deviation prevention inclination angle D is arranged between 10 degrees and 30 degrees, so that the connecting rod 414 does not rotate reversely when pressing the sealed sampling bottle 5, the pressing direction is ensured, and the connecting rod 414 is ensured to be above the two guide pressing plates 56.

[0041] The specific embodiments of the application are described in detail above, but the application is not limited to the specific embodiments described above. Any equivalent modification and replacement of the application made by those skilled in the art are also within the scope of the application. Therefore, any equivalent transformation and modification made without departing from the spirit and scope of the application is also covered in the scope of the application.

Claims

1. A portable water sampler, characterized in that: The device includes a collection shell (1), with a switching handle (2) and a collection head (3) connected to both ends of the collection shell (1). A circulation switching device (4) is installed inside the collection shell (1). One end of the circulation switching device (4) is connected to the switching handle (2), and the other end of the circulation switching device (4) is connected to the collection head (3). Several sealed sampling bottles (5) are installed on the circulation switching device (4). The collection shell (1) also includes a collection column (11), through which two symmetrically arranged circulation channels (12) pass. A circulatory cut is provided between the two symmetrically arranged circulation channels (12). The guide channel (13) is used in conjunction with the replacement device (4). A positioning guide channel (16) is provided on the inner wall of the guide channel (13). The two circulation channels (12) are connected through the guide channel (13). Several C-shaped positioning slots (15) are evenly arranged on the inner wall of the circulation channel (12). A C-shaped positioning ring (110) that cooperates with the sealed sampling bottle (5) is provided in the C-shaped positioning slot (15). A positioning hole (111) is provided on the C-shaped positioning ring (110). A silicone column that cooperates with the sealed sampling bottle (5) is provided in the positioning hole (111). Two clearance grooves (19) are provided at one end of the collection column (11). The recess (19) is hinged with a guide plate (112) that cooperates with the sealed sampling bottle (5). The inner wall of the recess (19) is provided with a limiting post (17) that cooperates with the guide plate (112). The guide plate (112) is provided with a guide return torsion spring. One end of the guide channel (13) is provided with a triangular guide post (18) that cooperates with the cycle switching device (4). The cycle switching device (4) includes a lifting mechanism (42) and an L-shaped push rod (49). One end of the lifting mechanism (42) is movably connected to a rotary switching mechanism (41), and the other end of the lifting mechanism (42) is hinged to a switching extraction mechanism (43). The rotary switching mechanism (41) and the lifting mechanism (42) both include a lifting rod (46). On one side of the lifting rod (46) are a plurality of lifting devices (44) and lifting clearance slots for the lifting devices (44) to be received. On the other side of the lifting rod (46) are a plurality of pushing devices (45) and pushing clearance slots for the pushing devices (45) to be received. One end of the lifting rod (46) in the rotary switching mechanism (41) passes through the switching handle (2) and is connected to the L-shaped push rod (49). One end of the L-shaped push rod (49) is set inside the switching handle (2). A pull handle (48) is provided on the L-shaped push rod (49).The switching handle (2) includes a switching pivot (21), one end of which is connected to a handle (22). The other end of the switching pivot (21) has two symmetrical switching cavities (24) that cooperate with the circulation channel (12). Each switching cavity (24) has a C-shaped positioning slot (15), and within the C-shaped positioning slot (15) is a C-shaped positioning ring (110) that cooperates with the sealed sampling bottle (5). The C-shaped positioning ring (110) has a positioning hole (111), and within the positioning hole (111) is a silicone column that cooperates with the sealed sampling bottle (5). A switching positioning channel (25) for the lifting rod (46) to pass through is provided between the two symmetrical switching cavities (24). A push rod insertion hole (26) for one end of an L-shaped push rod (49) to pass through is passed through the switching pivot (21).

2. The portable water sampler as described in claim 1, characterized in that: Both the lifting device (44) and the pushing device (45) include a return torsion spring (47) and a hinge rod (410). One end of the hinge rod (410) is hinged to the lifting rod (46), and both ends of the return torsion spring (47) are connected to the lifting rod (46) and the hinge rod (410) respectively. A lifting plate (412) is hinged to the end of the hinge rod (410) in the lifting device (44) away from the return torsion spring (47). A reset torsion spring is provided on the lifting plate (412), and one end of the reset torsion spring is connected to the hinge rod (410). A pressure roller (411) is provided on the end of the hinge rod (410) in the pushing device (45) away from the return torsion spring (47).

3. A portable water sampler as described in claim 1 or 2, characterized in that: The switching extraction mechanism (43) includes a connecting rod (414), with a guide rocker (413) and an auxiliary displacement device (415) connected to both ends of the connecting rod (414). The connection between the connecting rod (414) and the guide rocker (413) is hinged to the lifting rod (46). A transition return torsion spring connecting the guide rocker (413) and the lifting rod (46) is provided on the guide rocker (413). The auxiliary displacement device (415) includes a plug (417), with a connecting screw (416) connected to one end of the plug (417). A connecting screw (416) is provided on the plug (417). There is a recess (418), and two retractors (419) are provided in the recess (418). The two retractors (419) are located on both sides of the insert block (417). The retractor (419) includes a buffer (420) and a retractor (421). One end of the buffer (420) is hinged to the top wall of the recess (418), and the other end of the buffer (420) is hinged to the retractor (421). One end of the retractor (421) is hinged to the bottom wall of the recess (418), and a roller (422) is provided on the other end of the retractor (421).

4. A portable water sampler as described in claim 3, characterized in that: The sealed sampling bottle (5) includes a sampling bottle (51), two guide plates (56), and several connecting rods (55). Two sealing grooves (53) are provided on the side wall of the sampling bottle (51), and a sealing ring (54) is provided in each of the two sealing grooves (53). Several sampling holes (52) are provided on the side wall of the sampling bottle (51) between the two sealing grooves (53). One end of the sampling bottle (51) is connected to the two guide plates (56) through several connecting rods (55). A insertion block (417) is provided between the two guide plates (56). The sampling bottle (51) is fitted with a sealing ring (59) that cooperates with the sealing ring (54) to seal the gap. One end of the sealing ring (59) is connected to a positioning plate (510). At least two positioning rings (511) are provided on the side of the positioning plate (510) near the guide pressure plate (56). A return spring (58) and a return post (57) are provided inside the positioning ring (511). One end of the return post (57) is connected to the return spring (58), and the other end of the return post (57) is connected to the corresponding guide pressure plate (56).

5. A portable water sampler as described in claim 4, characterized in that: The sampling head (3) includes a sampling head shell (31), a silicone sealing plate (32), a fixing plate (33), a sealing plate (34), and bolts. A conical guide groove (35) is provided inside the sampling head shell (31), and a conical sampling hole (36) is provided inside the conical guide groove (35). Several guide plates (37) are provided on the inner wall of the conical sampling hole (36). The fixing plate (33) is connected to the sampling head shell (31) by bolts. The silicone sealing plate (32) is provided between the sampling head shell (31) and the fixing plate (33). A transition hole for the sealed sampling bottle (5) to pass through is provided on the silicone sealing plate (32) and the fixing plate (33). An internal thread is provided on the inner wall of the transition hole on the fixing plate (33), and an external thread that mates with the internal thread is provided on the outer wall of the sealing plate (34).

6. A portable water sampler as described in claim 1 or 5, characterized in that: The switching column (21) has several bull's eye screw holes (23) on the end away from the handle (22), and bull's eye is provided in the bull's eye screw holes (23). The collection column (11) has several bull's eye positioning holes (14) that cooperate with the bull's eye at the end away from the triangular guide column (18).

7. A portable water sampler as described in claim 6, characterized in that: An anti-bias tilt angle D is provided between the lifting rod (46) and the auxiliary displacement device (415), and the degree of the anti-bias tilt angle D is controlled between 10 degrees and 30 degrees.

Images