CN217384869U - Automatic water sample collecting device for environment evaluation - Google Patents

Abstract

The application provides an automatic water sample collection system for environmental evaluation, includes: the collecting box is provided with a water collecting adjusting component which is used for adjusting the height of the water suction head from the liquid level of the water sample to be collected and enabling the water suction head to enter the position below the liquid level of the water sample to be collected; the water suction head is arranged below the inner part of the collection box, the top of the water suction head is provided with a water taking hole, and one end of the water conveying pipe penetrates through the water taking hole and extends into the water taking head; the other end of the water delivery pipe penetrates through one side wall of the collection box, a pressure pump is arranged on the water delivery pipe, one end, located outside the collection box, of the water delivery pipe is communicated with a horizontal branch pipe, a plurality of water distribution pipes are vertically and downwards arranged at equal intervals at the bottom end of the horizontal branch pipe, and the bottom end of each water distribution pipe corresponds to a bottle opening of a water collection bottle; the horizontal fixing disc can be detachably arranged on the outer side wall of the collecting box and is used for fixing the water collecting bottle. The application not only saves the sampling time of water sampling personnel, but also improves the accuracy of the detection result of the water sample.

Description

Automatic water sample collecting device for environment evaluation

Technical Field

The application relates to a water sample collection technology, in particular to an automatic water sample collection device for environment evaluation.

Background

In recent years, with the rapid development of industry, environmental pollution is becoming more serious, especially the problem of water pollution is becoming more serious, and water sources are closely related to the lives of people, so that water monitoring is particularly emphasized in China, and water sample collection is an essential step for environmental evaluation, wherein when various departments such as water conservancy, environment, sanitation and the like know water conditions such as spectral analysis, water quality analysis, aquatic organism analysis and the like of water samples, a representative water sample is collected first, and the components contained in the collected water sample and the content of each component are analyzed.

The present water sample collection system for environmental evaluation is mostly after a water sample of gathering a certain place of gathering, take this water sample of gathering back to the laboratory and detect, and when the water sample of the different liquid level height of needs to same gathering place or other pollution sources is gathered, do not consider the batch preservation of post-collection water sample and the collection of a plurality of parallel water samples of the water sample of every liquid level height, cause the sampling personnel to make a round trip to the laboratory, the detection of not only extravagant sampling personnel's time and single water sample can make the water sample testing result have the limitation.

SUMMERY OF THE UTILITY MODEL

The application provides an automatic water sample collection system for environmental evaluation for solve current water sample collection system for environmental evaluation can't be to the batch of the water sample after gathering preserve and the collection of a plurality of parallel water samples of the water sample of every liquid level, cause the sampling personnel to need make a round trip to the laboratory, the detection of the time of not only extravagant sampling personnel and single water sample can make the water sample testing result have the problem of limitation.

In order to solve the technical problems, the application adopts the following technical scheme:

an automatic water sample collecting device for environment evaluation comprises a collecting box with an opening at the bottom end, a water collecting adjusting component, a water suction head, a water delivery pipe, a horizontal fixing disc and a plurality of water collecting bottles;

the collecting box is provided with the water collecting adjusting assembly, and the water collecting adjusting assembly is used for deeply adjusting the height of the water suction head from the liquid level of a water sample to be collected and enabling the water suction head to enter the position below the liquid level of the water sample to be collected;

the water suction head is arranged below the inner part of the collection box, a water taking hole is formed in the top of the water suction head, and one end of the water conveying pipe penetrates through the water taking hole and extends into the water suction head;

the other end of the water conveying pipe penetrates through one side wall of the collecting box, a pressure pump is arranged on the water conveying pipe, one end, located outside the collecting box, of the water conveying pipe is communicated with a horizontal branch pipe, a plurality of water distribution pipes are vertically and downwards arranged at equal intervals at the bottom end of the horizontal branch pipe, and the bottom end of each water distribution pipe corresponds to a bottle opening of one water collecting bottle;

the horizontal fixing disc is detachably arranged on the outer side wall of the collecting box and used for fixing the water collecting bottle.

Optionally, the water sampling adjusting assembly comprises a driving motor, a cross bar, a reel and a telescopic line;

the driving motor is arranged on the outer side wall of the collecting box, the cross rod is transversely and rotatably arranged between two opposite side walls of the collecting box through a bearing, a reel is arranged on the inner top wall of the collecting box, one end of the contraction wire is fixed at one end of the cross rod, and the other end of the contraction wire is wound on the cross rod, penetrates through the reel and is connected with the top of the water suction head;

the output shaft of the driving motor is connected with one end of the cross rod, and the driving motor is used for driving the cross rod to rotate and sequentially driving the contraction line and the water suction head to ascend or descend.

Optionally, the water suction head is frustum-shaped;

and a balancing weight used for enabling the water suction head to rapidly enter a water sample is arranged on the circumferential wall of the bottom end of the water suction head.

Optionally, a supporting seat for supporting the suction head is arranged at the bottom of the collecting box, sliding grooves with openings at two ends are arranged at the bottom ends of the two corresponding side walls of the collecting box, two convex blocks are arranged on the upper surface of the supporting seat in parallel, the two convex blocks correspond to the two sliding grooves one by one, and each convex block can move along the length direction of the sliding groove;

the lower surface of the supporting seat is provided with a universal wheel used for unlocking or locking the position of the supporting seat relative to the ground.

Optionally, a plurality of inserting columns are horizontally arranged on the outer side wall of the collecting box, a plurality of inserting holes are formed in one side, movably connected with the outer side wall of the collecting box, of the horizontal fixing disc, the inserting holes are in one-to-one correspondence with the plurality of inserting columns, and each inserting column is inserted into the corresponding inserting hole.

Optionally, the horizontal fixing disc is provided with a plurality of fixing grooves at equal intervals for fixing the water collecting bottles;

the depth of the fixing groove is greater than 2/3 of the height of the water collecting bottle.

Optionally, each water collecting bottle is provided with a sealing cover matched with the bottle mouth of the water collecting bottle.

Optionally, a push rod for pushing and pulling the automatic water sample collecting device is arranged on one side wall of the collecting box.

According to the automatic water sample collecting device for environment evaluation, the height of the water suction head from the liquid level of a water sample to be collected is adjusted through the water collecting adjusting assembly, and the water suction head enters the position below the liquid level of the water sample to be collected, so that the water samples to be collected with different liquid level heights can be collected; the horizontal branch pipe, the plurality of water distribution pipes and the plurality of water collection bottles can realize the collection of a plurality of parallel water samples under the same water sample to be collected, the accuracy of the detection result of the water sample can be improved, and the detection result can be better used as a reference basis for environmental evaluation; the horizontal fixing disc can fix the water collecting bottle in the sampling process, the bottom end of the water diversion pipe extends into the water collecting bottle, the water collecting bottle is prevented from being toppled, the water sample in the water collecting bottle flows out and needs to be sampled again, the stability of the sampling process is ensured, the sampling time is saved, the horizontal fixing disc can be detachably connected onto the side wall of the collecting box, the horizontal fixing disc is fixed onto the side wall of the collecting box before sampling, the water collecting bottle after sampling on the horizontal fixing disc is full, the horizontal fixing disc is detached and placed, the other horizontal fixing disc is replaced, the sampling requirements of a plurality of water samples with different depths and different collecting points can be met, the water collecting bottle on the fixing disc is detected together after the sampling is completed, the trouble that a sampling person makes a round trip to collect the ground and the detection ground is avoided, and the accuracy and the sampling efficiency of detection results are improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of an automatic water sample collection device for environmental evaluation according to an embodiment of the present disclosure;

FIG. 2 is an enlarged view taken at A in FIG. 1 according to another embodiment of the present application;

FIG. 3 is a schematic view of the connection between the horizontal mounting plate and the side wall of the collection box according to another embodiment of the present disclosure;

FIG. 4 is a schematic view of a connection between a pick box and a support base according to another embodiment of the present disclosure.

In the figure: 100. a collection box; 101. a chute; 102. inserting a column; 103. a push rod; 200. a water collection regulating assembly; 201. a drive motor; 202. a cross bar; 203. a reel; 204. scaling the wire; 300. a suction head; 301. a water taking hole; 302. filtering with a screen; 303. a counterweight block; 400. a water delivery pipe; 401. a pressure pump; 500. a horizontal fixed disc; 501. fixing grooves; 502. a jack; 600. a water collecting bottle; 601. a sealing cover; 700. a horizontal branch pipe; 701. a stop valve; 702. a water diversion pipe; 800. a supporting seat; 801. a universal wheel; 802. and (6) a bump.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort also belong to the protection scope of the present application.

Referring to fig. 1 to 4, an automatic water sample collection device for environmental evaluation includes a collection box 100 with an open bottom end, a water collection adjustment assembly 200, a suction head 300, a water pipe 400, a horizontal fixed tray 500, and a plurality of water collection bottles 600.

Wherein, be provided with water sampling adjusting part 200 on the collection box 100, water sampling adjusting part 200 sets up in the inside of collection box 100 and is used for adjusting the height that the suction head 300 apart from the liquid level of waiting to gather the water sample and makes suction head 300 get into below the liquid level of waiting to gather the water sample, water gets into in the suction head 300 from the hole 301 of intaking, can gather the water sample of different liquid level height through water sampling adjusting part 200 and suction head 300, and the sampling is accomplished the back, take out suction head 300 from the water sample, not only avoided suction head 300 to soak in sewage for a long time, cause the corruption to water sampling suction head 300, and then the life of extension suction head 300.

The suction head 300 is arranged below the inside of the collection box 100, the top of the suction head 300 is provided with a water taking hole 301, one end of the water pipe 400 penetrates through the water taking hole 301 to stretch into the suction head 300, so that in the sampling process, after the water sample is collected by the suction head 300, one end of the water pipe 400, which is positioned inside the collection box 100, can stretch into the water level of the suction head 300 from the water taking hole 301 all the time and is below the water sample in the suction head 300, and the water sample in the suction head 300 is taken out.

The other end of raceway 400 runs through a lateral wall of collection box 100, be provided with force pump 401 on raceway 400, horizontal branch pipe 700 has been linked to the one end that raceway 400 is located the outside of collection box 100, optionally, still be provided with stop valve 701 on horizontal branch pipe 700, the bottom of horizontal branch pipe 700 is equidistant vertically to be provided with a plurality of distributive pipes 702 downwards, the bottom of every distributive pipe 702 corresponds the bottleneck of a water collecting bottle 600, the setting of the water collecting bottle 600 that a plurality of distributive pipes 702 and every distributive pipe 702 correspond can ensure to gather a plurality of parallel water samples under the same liquid level height simultaneously, make the testing result of water sample more accurate, can be more accurate be used for environmental evaluation.

Horizontal fixed disk 500 can be dismantled and set up on the lateral wall of collection box 100, and horizontal fixed disk 500 is used for fixed water-collecting bottle 600, and the number of horizontal fixed disk 500 can be a plurality ofly, and the number of sampling specifically as required is injectd, and this application does not do not specifically injectd here.

In the actual water collection process, after water samples under the same liquid level height are collected in the water collecting bottle 600 corresponding to each water distributing pipe 702, horizontally moving each water collecting bottle 600 full of water to one side of the horizontal fixing disc 500 far away from the collection box, then placing an empty water collecting bottle 600 to one side close to the collection box 100 and extending the bottom end of the water distributing pipe 702 into the empty water collecting bottle 600 for collecting water samples under different liquid level heights in the same area or water samples of other collection points; the steps are repeated, when the water collecting bottle 600 filled with the water samples is fixed on the horizontal fixing disc 500, the horizontal fixing disc 500 is detached and stored, and then the other empty horizontal fixing disc 500 is fixed on the collecting box 100, so that the collected water samples can be stored in batches, and after the water samples at the same collecting point and different liquid level heights and the water samples at different collecting points are collected, all the collected water samples are detected after the sampling is finished, the sampling time of a sampling person is saved, and the water samples at the same liquid level height of the same collecting point can be parallelly collected to obtain a plurality of water samples, so that the trouble that the sampling person comes and goes to collect the ground and the detection place is avoided, and the accuracy and the sampling efficiency of detection results are improved. The application provides a water sample collection system for environmental evaluation is particularly useful for gathering the water samples of a plurality of sampling points such as drain, bilge well, cellar for storing things well, rainwater pipe network, domestic wastewater pipe network, sewer and mill's waste water collection tank.

In some embodiments, the water production regulating assembly 200 herein includes a drive motor 201, a crossbar 202, a reel 203, and a zoom line 204; the driving motor 201 is arranged on the outer side wall of the collection box 100, the cross bar 202 is transversely and rotatably arranged between two opposite side walls of the collection box 100 through a bearing, a reel 203 is arranged on the inner top wall of the collection box 100, one end of a scaling wire 204 is fixed at one end of the cross bar 202, and the other end of the scaling wire 204 is wound on the cross bar 202, penetrates through the reel 203 and is connected with the top of the water suction head 300; an output shaft of the driving motor 201 is connected with one end of the cross bar 202, and the driving motor 201 is used for driving the cross bar 202 to rotate and sequentially driving the contraction line 204 and the suction head 300 to ascend or descend.

In the actual sampling process, the suction head 300 connected with the scaling line 204 is immersed in a water sample through the rotation of the driving motor 201, after the water sample is collected by the suction head 300, the suction head 300 connected with the scaling line 204 is pulled upwards through the rotation of the driving motor 201 until one end of the water diversion pipe 702 positioned inside the collection box 100 penetrates through the water taking hole 300 and extends into the water surface below the water level in the suction head 300, and water enters the suction head 300 from the water taking hole 301, so that the length of the scaling line 204 can be adjusted according to the water samples with different liquid level heights, the height of the suction head 300 from the liquid level of the water sample is adjusted, finally the suction head 300 enters the water surface below the water sample to be collected, and the water with different liquid level heights is further taken, and the corrosion of the suction head 300 caused by the fact that the suction head 300 is soaked in sewage for a long time is avoided, and the service life of the suction head 300 is further prolonged.

In some embodiments, the suction head 300 in this application is frustum-shaped and is provided with the balancing weight 303 on the perisporium of the bottom of suction head 300 for the bottom quality of suction head 300 is great, and then makes suction head 300 can get into in the water sample fast and submerge to below the liquid level of water sample, has shortened the time of sampling, has improved sampling efficiency.

Referring to fig. 4, in some embodiments, the bottom of the collection box 100 of the present application is provided with a supporting seat 800 for supporting the suction head 300, the bottom ends of the two corresponding sidewalls of the collection box 100 are provided with sliding grooves 101 with two open ends, the upper surface of the supporting seat 800 is provided with two parallel bumps 802, the two bumps 802 are in one-to-one correspondence with the two sliding grooves 101, and each bump 802 can move along the length direction of the sliding groove 101; the lower surface of the support 800 is provided with a universal wheel 801 for unlocking or locking the position of the support 800 relative to the ground.

In the actual sampling process, a sampling person horizontally pushes the supporting seat 800, so that the bump 802 horizontally slides along the length direction of the sliding groove 101 until the bump 802 is separated from the sliding groove, the suction head 300 is taken out of the collection box 100, and sampling is started; after the sampling is accomplished, when needing to another collection point to gather the water sample, install supporting seat 800 in the bottom of collection box 100, promote collection box 100, the universal wheel 801 of supporting seat 800 bottom slides along ground for the process that the sampling personnel moved collection box 100 is more laborsaving.

Referring to fig. 3, in some embodiments, the lateral wall of collection box 100 herein is horizontally disposed with a plurality of posts 102, the side of horizontal fixing plate 500 movably connected to the lateral wall of collection box 100 is disposed with a plurality of receptacles 502, the plurality of receptacles 502 correspond to the plurality of posts 102 one-to-one, and each post 102 is inserted into the corresponding receptacle 502.

In the above embodiment, after the water collecting bottle 600 filled with the water sample is fixed on the horizontal fixing plate 500, the sampling personnel detach the horizontal fixing plate 500 from the sidewall of the collection box 100, so that the plug posts 102 on the horizontal fixing plate 500 are separated from the insertion holes on the collection box 100, place the horizontal fixing plate 500 filled with the water collecting bottle 600, fix the empty horizontal fixing plate 500 on the sidewall of the collection box 100, continue to collect the water sample, facilitate detachment, and meet the collection requirements of a plurality of water samples.

In some embodiments, a plurality of fixing grooves 501 for fixing the water collecting bottle 600 are provided at equal intervals on the horizontal fixing tray 500; the depth of the fixing groove 501 is greater than the 2/3 of the height of the water collecting bottle 600, so that the water collecting bottle 600 can be stably fixed in the fixing groove 501, the trouble that the water sample in the water collecting bottle 600 flows out due to the fact that the water collecting bottle 600 topples over and needs to be sampled again is avoided, sampling time of sampling personnel is saved, and sampling efficiency is improved.

In some embodiments, each water collecting bottle 600 in the present application is provided with a sealing cover 601 matching with the mouth of the water collecting bottle 600, wherein the sealing cover 601 is integrally connected with the mouth of the water collecting bottle 600, the sealing cover 601 is removed from the mouth of the water collecting bottle 600 during sampling, the sealing cover 601 is still connected to the water collecting bottle 600, so that the sealing cover 601 is prevented from being lost during sampling, and the sealing cover 601 is covered on the mouth of the water collecting bottle 600 after a water sample is filled in the water collecting bottle 600, on one hand, the trouble that the collected water sample cannot reach the detected amount and needs to be sampled again because the water sample in the water collecting bottle 600 is spilled out during the process of moving the water collecting bottle 600 can be avoided; on the other hand, sealed lid 601 can avoid other impurity in the air to get into the water sample in the water collecting bottle 600, influences the testing result of water sample, and then influences the accuracy to environmental evaluation.

In some embodiments, a push rod 103 for pushing and pulling the automatic water sample collection device is disposed on one side wall of the collection box 100, and in the process of moving the collection box 100, the collection box 100 is pushed by the push rod 103, so that inconvenience of bending of a sampling person is avoided, the length of the push rod 103 can be set according to actual needs in the sampling process, and the application is not specifically limited herein.

The application provides an automatic water sample collection system for environmental evaluation's concrete theory of operation as follows:

1) before sampling is started, the supporting seat 800 is taken down from the bottom of the collecting tank 100, the driving motor 201 is driven to rotate reversely to drive the cross rod 202 to rotate according to the height of the liquid level of a water sample to be collected, the suction head 300 connected with the scaling line 204 is immersed in the water sample, the driving motor 201 is driven to rotate forward after the suction head 300 absorbs water, the scaling line 204 drives the suction head 300 to ascend until one end of the water pipe 400 located in the collecting tank 100 extends into the position below the liquid level of the suction head 300 from the water taking hole 301, the pressure pump 401 and the stop valve 701 are opened to start water absorption, when the water sample in the water collecting bottle 600 is fully collected, the stop valve 701 on the horizontal branch pipe 700 is closed, the water sample entering the water collecting bottle 600 for the first time is poured out, the water pipe 400 and the water collecting bottle 600 are rinsed, and the water sample entering the water collecting bottle 600 for the second time is a detection water sample;

2) covering a sealing cover 601 on a water collecting bottle 600 full of water samples, taking the water collecting bottle 600 out of a fixing groove 501, horizontally placing the water collecting bottle 600 into the fixing groove 501 of a horizontal fixing plate 500 far away from the collection box 100, then placing an empty water collecting bottle 600 into the fixing groove 501 corresponding to the bottom end of a water distribution pipe 702, taking down the sealing cover 601, extending the bottom end of the water distribution pipe 702 into the water collecting bottle 600, and repeating the sampling process in the step 1;

3) when the water collecting bottle 600 filled with the water sample is fixed on the horizontal fixing disc 500, the horizontal fixing disc 500 is taken down from the side wall of the collecting box 100 for storage, the other horizontal fixing disc 500 is fixed on the side wall of the collecting box 100, the empty water collecting bottle 600 is placed in the fixing groove 501 for continuous water sample collection, after the water sample collection is completed, the supporting seat 800 is fixed at the bottom of the collecting box 100, and the collecting box 100 is pushed by the push rod 103 to enter the next water sample collecting point.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (8)

1. An automatic water sample collecting device for environmental evaluation is characterized by comprising a collecting box (100) with an opening at the bottom end, a water collecting adjusting component (200), a water suction head (300), a water conveying pipe (400), a horizontal fixing disc (500) and a plurality of water collecting bottles (600);

the collection box (100) is provided with the water collection adjusting component (200), and the water collection adjusting component (200) is used for adjusting the height of the water suction head (300) from the liquid level of a water sample to be collected and enabling the water suction head (300) to enter the position below the liquid level of the water sample to be collected;

the water suction head (300) is arranged below the inner part of the collection box (100), a water taking hole (301) is formed in the top of the water suction head (300), and one end of the water conveying pipe (400) penetrates through the water taking hole and extends into the water suction head (300);

the other end of the water pipe (400) penetrates through one side wall of the collection box (100), a pressure pump (401) is arranged on the water pipe (400), one end, located outside the collection box (100), of the water pipe (400) is communicated with a horizontal branch pipe (700), a plurality of water distribution pipes (702) are vertically arranged downwards at equal intervals at the bottom end of the horizontal branch pipe (700), and the bottom end of each water distribution pipe (702) corresponds to the opening of one water collection bottle (600);

the horizontal fixing disc (500) is detachably arranged on the outer side wall of the collection box (100), and the horizontal fixing disc (500) is used for fixing the water collecting bottle (600).

2. The automatic water sampling device for environmental evaluation according to claim 1, wherein the water sampling adjusting assembly (200) comprises a driving motor (201), a cross bar (202), a reel (203) and a scaling wire (204);

the driving motor (201) is arranged on the outer side wall of the collecting box (100), the cross rod (202) is transversely and rotatably arranged between two opposite side walls of the collecting box (100) through a bearing, a winding wheel (203) is arranged on the inner top wall of the collecting box (100), one end of the contraction wire (204) is fixed at one end of the cross rod (202), and the other end of the contraction wire (204) is wound on the cross rod (202), penetrates through the winding wheel (203) and is connected with the top of the water suction head (300);

an output shaft of the driving motor (201) is connected with one end of the cross rod (202), and the driving motor (201) is used for driving the cross rod (202) to rotate and sequentially driving the contraction line (204) and the suction head (300) to ascend or descend.

3. The automatic water sample collection device for environmental evaluation according to claim 2, wherein the suction head (300) is frustum-shaped;

the circumferential wall of the bottom end of the water suction head (300) is provided with a balancing weight (303) used for enabling the water suction head (300) to rapidly enter a water sample.

4. The automatic water sample collection device for environmental evaluation according to claim 1, wherein the bottom of the collection box (100) is provided with a support seat (800) for supporting the suction head (300), the bottom ends of two corresponding side walls of the collection box (100) are provided with sliding chutes (101) with two open ends, the upper surface of the support seat (800) is provided with two parallel bumps (802), the two bumps (802) are in one-to-one correspondence with the two sliding chutes (101), and each bump (802) can move along the length direction of the sliding chute (101);

the lower surface of the supporting seat (800) is provided with a universal wheel (801) used for unlocking or locking the position of the supporting seat (800) relative to the ground.

5. The automatic water sample collection device for environmental evaluation according to claim 1, wherein a plurality of insertion posts (102) are horizontally arranged on the outer side wall of the collection box (100), a plurality of insertion holes (502) are arranged on one side of the horizontal fixed disk (500) movably connected with the outer side wall of the collection box (100), the plurality of insertion holes (502) are in one-to-one correspondence with the plurality of insertion posts (102), and each insertion post (102) is inserted into the corresponding insertion hole (502).

6. The automatic water sample collection device for environmental evaluation according to claim 1, wherein the horizontal fixed tray (500) is provided with a plurality of fixing grooves (501) for fixing the water collecting bottles (600) at equal intervals;

the depth of the fixing groove (501) is greater than 2/3 of the height of the water collecting bottle (600).

7. The automatic water sample collection device for environmental evaluation according to claim 1, wherein each water collecting bottle (600) is provided with a sealing cover (601) matching with the mouth of the water collecting bottle (600).

8. The automatic water sampling device for environmental evaluation according to any one of claims 1 to 7, wherein a push rod (103) for pushing and pulling the automatic water sampling device is provided on one side wall of the collection box (100).

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