CN216160222U

CN216160222U - Environmental protection monitoring is with novel sewage sampling device

Info

Publication number: CN216160222U
Application number: CN202122022836.XU
Authority: CN
Inventors: 苗红梅
Original assignee: Longjing Ecological Environment Monitoring Station
Current assignee: Longjing Ecological Environment Monitoring Station
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-04-01
Anticipated expiration: 2031-08-26

Abstract

The utility model discloses a novel sewage sampling device for environmental protection monitoring, which comprises a top seat and a sampling cylinder, wherein the sampling cylinder is arranged below the top seat, a plurality of water inlet holes are longitudinally formed in the side wall of the sampling cylinder at equal intervals, and a self-closing valve is arranged in each water inlet hole; the inner cavity of the sampling tube is connected with sampling tubes in a sliding way, and a plurality of sampling tubes are sequentially spliced end to end; a first spring is connected between the bottom end of the sampling tube in the third cylinder and the bottom surface of the inner cavity of the sampling tube at the lowest end; the sampling tube is arranged corresponding to the water inlet hole. The sampling length of the device is convenient to adjust, the device can be used for sampling sewage at different depths, and is convenient and rapid, high in sampling efficiency, time-saving and labor-saving, and capable of preventing disturbance of a sewage layer caused by multiple sampling and improving the accuracy of sewage sampling.

Description

Environmental protection monitoring is with novel sewage sampling device

Technical Field

The utility model relates to the technical field of sewage detection, in particular to a novel sewage sampling device for environmental protection monitoring.

Background

Water is one of the most common substances on earth. The earth's surface is 71% covered with water. It is an important resource for all life including inorganic compounds and human beings, and is also the most important component of organisms. The total amount of fresh water resources in China is large, but people account for less, the pollution wave of the fresh water resources is serious, and the pollution is more serious in water-rich areas and large cities and more in densely populated areas.

The common fresh water quality pollution of rivers and lakes is mostly caused by substandard discharge of various sewage, and particularly, the private steal and discharge behaviors of some industrial sewage can cause great pollution to surface water. Therefore, it is very important to know whether various sewages reach the corresponding discharge standards in time. However, in order to obtain accurate sewage parameters, sewage sampling is required in the water quality detection.

In some times, we can meet the condition that needs the sewage water sample of several different degree of depth of sample, but present sewage sampling device can't take a sample to the sewage of the different degree of depth simultaneously, originally can only use equipment respectively, stretches into the different degree of depth, then takes a sample, can only take a sample the water sample of a degree of depth like this at every turn, and very troublesome, waste time also disorder submarine pollution layering makes the sampling result inaccurate easily. Therefore, a sampling device capable of simultaneously sampling sewage at different depths is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel sewage sampling device for environmental protection monitoring, which is used for solving the problems in the prior art.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a novel sewage sampling device for environmental protection monitoring, which comprises a top seat and a sampling cylinder, wherein the sampling cylinder is arranged below the top seat, a plurality of water inlet holes are longitudinally and equidistantly formed in the side wall of the sampling cylinder, and a self-closing valve is arranged in each water inlet hole;

the sampling tube comprises a first tube, a second tube and a third tube which are sequentially arranged, the top end of the first tube is fixedly connected with the top seat, the second tube is inserted into the bottom end of the first tube, and the top end of the third tube is inserted into the bottom end of the second tube;

a plurality of plug-in components are circumferentially arranged between the first cylinder and the second cylinder, and a plurality of other plug-in components are circumferentially arranged between the second cylinder and the third cylinder;

the inner cavities of the first cylinder, the second cylinder and the third cylinder are respectively connected with sampling tubes in a sliding manner, and a plurality of sampling tubes are sequentially spliced end to end; a first spring is connected between the bottom end of the sampling tube in the third cylinder and the bottom surface of the inner cavity of the sampling tube at the lowest end;

the sampling tube is arranged corresponding to the water inlet hole.

Preferably, the top seat comprises a bottom plate, and the bottom surface of the bottom plate is fixedly connected with the first cylinder; the top surface of the bottom plate is fixedly connected with a top plate, the upper part of the top plate is rotatably connected with a connecting rod, the top end of the connecting rod is fixedly connected with a knob, and the bottom end of the connecting rod sequentially penetrates through the top plate and the bottom plate to be in sliding connection with the sampling tube; and a locking device is arranged between the bottom end of the knob and the top end of the top plate.

Preferably, the locking device comprises a locking assembly and a second spring, the second spring is sleeved on the connecting rod, and two ends of the second spring are fixedly connected with the bottom surface of the knob and the top surface of the top plate respectively; the locking assembly comprises a locking block fixedly connected to the top surface of the top plate and a moving block fixedly connected to the bottom end of the knob, and the locking block and the moving block are arranged correspondingly.

Preferably, the plug-in assembly comprises an upper fixed block fixedly connected with the outer wall of the lower end of the first cylinder, the outer wall of the top end of the second cylinder is fixedly connected with a lower fixed block, and the upper fixed block and the lower fixed block are arranged correspondingly; the top surface of the upper fixed block is provided with a fixed groove, a sliding block is detachably connected in the fixed groove, the bottom end of the sliding block is fixedly connected with an unlocking rod, and the unlocking rod penetrates through the lower fixed block and is fixedly connected with a button; the unlocking rod is sleeved with a third spring, and two ends of the third spring are fixedly connected with the top surface of the button and the bottom surface of the lower fixing block respectively.

Preferably, the sampling tube comprises a sampling frame, the top end of the sampling frame is fixedly connected with a bearing head, the bottom end of the sampling tube is fixedly connected with a socket, and the bearing head is inserted into the socket of the other sampling tube; the sampling frame is provided with a plurality of sewage boxes in a detachable connection mode, each sewage box comprises a box body, the upper end of each box body is communicated with a water inlet pipe, and the water inlet pipes are detachably connected with the water inlet holes.

Preferably, the water inlet pipe comprises a first pipe and a second pipe, a third pipe is connected between the first pipe and the second pipe in a sliding manner, one end of the first pipe is fixedly connected with the box body and communicated with the inner cavity of the box body, the other end of the first pipe is connected with one end of the third pipe in a sliding manner, the other end of the third pipe is connected with one end of the second pipe in a sliding manner, and the second pipe is connected with the water inlet hole in a sliding manner; the tail end of the third pipe is detachably connected with the self-closing valve; and a fourth spring is fixedly connected between the two ends of the first pipe, which are opposite to the second pipe, and the fourth spring is sleeved outside the third pipe.

Preferably, the self-closing valve comprises a first valve plate and a second valve plate, the outer edge of the first valve plate is connected with the water inlet hole in a sliding mode, and the outer edge of the second valve plate is fixedly connected with the water inlet hole; the first valve plate is fixedly connected with a valve shaft, the valve shaft is connected with the first valve plate in a sliding mode, a fifth spring is sleeved on the valve shaft, and two ends of the fifth spring are fixedly connected with the opposite end faces of the first valve plate and the second valve plate respectively; and a plurality of water guide assemblies are arranged between the first valve plate and the second valve plate.

Preferably, the water guide assembly comprises a first water guide hole formed in the first valve plate and a second water guide hole formed in the second valve plate, and the first water guide hole and the second water guide hole are arranged in a staggered manner; the first valve plate faces the end face of the second valve plate, a plurality of water blocking plugs are fixedly connected with positions corresponding to the second water guide holes, and the water blocking plugs are connected with the second water guide holes in a sliding mode.

Preferably, the water blocking plug comprises a fixed rod fixedly connected with the first valve plate, a plug head is fixedly connected to the top end of the fixed rod, and the diameter of the plug head is matched with that of the second water guide hole; the diameter of the fixing rod is smaller than that of the plug head.

The utility model discloses the following technical effects: the utility model provides a novel sewage sampling device for environmental protection monitoring, wherein sampling pipes are respectively connected in a sliding manner in a first cylinder and a third cylinder of a second cylinder which are sequentially spliced, and the length of the sampling pipes is conveniently adjusted by adding or reducing the number of the second cylinders, so that sewage water sources with different depths can be obtained; the sampling tube and the sampling tube side wall are correspondingly arranged in the water inlet hole, the self-closing valve is further arranged in the water inlet hole, water inlet of the water inlet tube is controlled more conveniently, after the sampling tube reaches a preset depth, the sampling tube is controlled to be communicated with the water inlet tube through the top seat, the self-closing valve is opened simultaneously, sewage enters the sampling tube, after sampling is completed, the sampling tube and the water inlet hole are disconnected, the self-closing valve is automatically closed, and external sewage is prevented from entering the sampling tube again. The sampling length of the device is convenient to adjust, the device can be used for sampling sewage at different depths, and is convenient and rapid, high in sampling efficiency, time-saving and labor-saving, and capable of preventing disturbance of a sewage layer caused by multiple sampling and improving the accuracy of sewage sampling.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.

FIG. 1 is a three-dimensional view of the novel sewage sampling device for environmental protection monitoring according to the present invention;

FIG. 2 is a front view of the novel sewage sampling device for environmental protection monitoring of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a partial enlarged view of B in FIG. 2;

FIG. 5 is an enlarged view of a portion C of FIG. 3;

FIG. 6 is an enlarged view of a portion D of FIG. 3;

FIG. 7 is a schematic diagram of the self-closing structure of the present invention;

wherein, 1, a top seat; 2. a sampling tube; 3. a water inlet hole; 4. a self-closing valve; 5. a first cartridge; 6. a second cartridge; 7. a third cartridge; 8. a plug-in assembly; 9. a sampling tube; 10. a first spring; 101. a base plate; 102. a top plate; 103. a connecting rod; 104. a knob; 105. a second spring; 106. a locking block; 107. a motion block; 401. a first valve plate; 402. a second valve plate; 403. A valve shaft; 404. a fifth spring; 405. a first water guide hole; 406. a second water guide hole; 407. Fixing the rod; 408. a plug head; 701. a drill bit; 801. an upper fixed block; 802. a lower fixed block; 803. fixing grooves; 804. a slider; 805. an unlocking lever; 806. a button; 807. a third spring; 901. a sampling frame; 902. a bearing head; 903. a socket; 904. a sewage box; 905. a box body; 906. a water inlet pipe; 907. a first tube; 908. a second tube; 909. a third tube; 910. a fourth spring; 911. a limiting block; 912. a limiting groove; 913. positioning a groove; 914. a limiting hole; 915. a limiting groove; 916. a sixth spring; 917. and (5) blocking the ball.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-7, the utility model provides a novel sewage sampling device for environmental protection monitoring, which comprises a top seat 1 and a sampling cylinder 2, wherein the sampling cylinder 2 is arranged below the top seat 1, a plurality of water inlets 3 are longitudinally arranged on the side wall of the sampling cylinder 2 at equal intervals, and self-closing valves 4 are arranged in the water inlets 3; in normal times, the self-closing valve 4 is closed to prevent external sewage from entering the sampling cylinder 2, and during sampling, the self-closing valve 4 is opened to enable the external sewage to enter the sampling cylinder 2, so that the control is convenient;

the sampling tube 2 comprises a first tube 5, a second tube 6 and a third tube 7 which are sequentially arranged, the top end of the first tube 5 is fixedly connected with the top seat 1, the second tube 6 is inserted into the bottom end of the first tube 5, and the top end of the third tube 7 is inserted into the bottom end of the second tube 6; a plurality of plug-in components 8 are circumferentially arranged between the first barrel 5 and the second barrel 6, and a plurality of other plug-in components 8 are circumferentially arranged between the second barrel 6 and the third barrel 7; the first cylinder 5 is arranged at the topmost end, the third cylinder 7 is arranged at the bottommost end, the first cylinder and the third cylinder are indispensable, the second cylinder 6 is used for adjusting the length of the sampling cylinder 2, and the number of the second cylinders 6 is selected according to the depth of an area to be sampled and the preset sampling depth, so that the sampling device is convenient and adjustable; the cylinders are connected through the plug-in components 8, so that the operation is more convenient;

further, in order to improve the stability of the sampling cylinder 2, a drill bit 701 is fixedly connected to the end of the third cylinder 7, and when the sampling cylinder is used, the drill bit 701 is abutted against the bottom surface of the water body at the sampling position, so that the sampling cylinder 2 is more stable.

The inner cavities of the first cylinder 5, the second cylinder 6 and the third cylinder 7 are respectively connected with sampling tubes 9 in a sliding manner, and the sampling tubes 9 are sequentially spliced end to end; a first spring 10 is connected between the bottom end of the sampling tube 9 in the third barrel 7 and the bottom surface of the inner cavity of the sampling tube 9 at the lowest end; during the use, 9 end to end grafting of each section sampling tube, sampling tube 9 and the sliding connection of 2 inner walls of sampler barrel, convenient to detach and installation also are convenient for take out the sample in proper order after the sample.

Sampling tube 9 corresponds the setting with inlet opening 3, and during the sample, sewage enters sampling tube 9 through inlet opening 3 and stores, accomplishes the sample.

According to a further optimized scheme, the top seat 1 comprises a bottom plate 101, and the bottom surface of the bottom plate 101 is fixedly connected with the first cylinder 5; a top plate 102 is fixedly connected to the top surface of the bottom plate 101, a connecting rod 103 is rotatably connected to the top of the top plate 102, a knob 104 is fixedly connected to the top end of the connecting rod 103, and the bottom end of the connecting rod 103 sequentially penetrates through the top plate 102 and the bottom plate 101 to be slidably connected with the sampling tube 9; a locking device is arranged between the bottom end of the knob 104 and the top end of the top plate 102; the locking device comprises a locking component and a second spring 105, the second spring 105 is sleeved on the connecting rod 103, and two ends of the second spring 105 are respectively fixedly connected with the bottom surface of the knob 104 and the top surface of the top plate 102; the locking assembly comprises a locking block 106 fixedly connected to the top surface of the top plate 102 and a moving block 107 fixedly connected to the bottom end of the knob 104, wherein the locking block 106 and the moving block 107 are arranged correspondingly. The connecting rod 103 is connected with the bottom plate 101 and the top plate 102 in a sliding manner, so that the sampling tube 9 can slide left and right to rotate, and can also slide up and down to translate up and down, and the connecting rod 103 is connected with the top end of the sampling tube 9 in a rotating manner, so that the sampling tube 9 at the topmost end cannot rotate along with the connecting rod 103 when the connecting rod 103 rotates, and meanwhile, in order to take out the sampling tube 9 from the inner cavity of the first barrel 5 conveniently, the top end of the sampling barrel 2 is inserted into the tail end of the connecting rod 103, and the sampling barrel 2 can be pulled out forcibly when being taken out; the contact surfaces of the locking block 106 and the moving block 107 are arranged in a matched mode and are respectively in an L shape and an inverted L shape, the locking block 106 and the moving block 107 are arranged in a staggered mode, and when the locking device is used, the moving block and the locking block 106 are mutually clamped up and down and cannot be separated. During the use, push down connecting rod 103 through knob 104, compress second spring 105, make the movable block descend and coincide with latch segment 106 position, then rotate knob 104, make the movable block card go into latch segment 106, sampling tube 9 is pushed down by connecting rod 103 this moment, compress first spring 10, and the import and the inlet opening 3 intercommunication of sampling tube 9 are used for the sewage sample.

According to a further optimized scheme, the plug-in assembly 8 comprises an upper fixing block 801 fixedly connected with the outer wall of the lower end of the first cylinder 5, a lower fixing block 802 fixedly connected with the outer wall of the top end of the second cylinder 6, and the upper fixing block 801 and the lower fixing block 802 are arranged correspondingly; a fixing groove 803 is formed in the top surface of the upper fixing block 801, a sliding block 804 is detachably connected in the fixing groove 803, an unlocking rod 805 is fixedly connected to the bottom end of the sliding block 804, and the unlocking rod 805 penetrates through the lower fixing block 802 and is fixedly connected with a button 806; the unlocking rod 805 is sleeved with a third spring 807, and two ends of the third spring 807 are fixedly connected with the top surface of the button 806 and the bottom surface of the lower fixing block 802 respectively; during installation, the button 806 is pushed upwards, the sliding block 804 is pushed upwards through the unlocking rod 805, then the sampling tube 2 where the lower fixing block 802 is located is rotated, the upper fixing block 801 and the lower fixing block 802 are aligned, then the button 806 is loosened, the locking rod is pushed back through the third spring 807, the top of the sliding block 804 is clamped in the fixing groove 803, and locking between the sampling tubes 2 is completed; when the sampler is disassembled, the button 806 is pushed to slide the sliding block 804 out of the fixing groove 803, then the sampling cylinder 2 where the lower fixing block 802 is located is rotated, the upper fixing block 801 and the lower fixing block 802 are staggered, and then the sampling cylinder 2 where the lower fixing block 802 is located is pulled down, so that the disassembly can be completed.

Further, in order to improve the water tightness between each section of sampling tube 2, an annular sealing groove is formed in the inner wall of the lower end of the upper sampling tube 2, a sealing head is fixedly connected to the top end of the lower sampling tube 2 and is inserted into the sealing groove, and a sealing gasket is arranged between the sealing groove and the sealing head to prevent water leakage at the joint of the sampling tube 2.

In a further optimized scheme, the sampling tube 9 comprises a sampling frame 901, the top end of the sampling frame 901 is fixedly connected with a bearing head 902, the bottom end of the sampling tube 9 is fixedly connected with a socket 903, and the bearing head 902 is inserted into the socket 903 of another sampling tube 9; a plurality of sewage boxes 904 are detachably connected to the sampling frame 901, each sewage box 904 comprises a box body 905, the upper end of each box body 905 is communicated with a water inlet pipe 906, and each water inlet pipe 906 is detachably connected with a water inlet hole 3; the water inlet pipe 906 comprises a first pipe 907 and a second pipe 908, a third pipe 909 is connected between the first pipe 907 and the second pipe 908 in a sliding manner, one end of the first pipe 907 is fixedly connected with the box body 905 and is communicated with the inner cavity of the box body 905, the other end of the first pipe 907 is connected with one end of the third pipe 909 in a sliding manner, the other end of the third pipe 909 is connected with one end of the second pipe 908 in a sliding manner, and the second pipe 908 is connected with the water inlet hole 3 in a sliding manner; the end of the third pipe 909 is detachably connected with the self-closing valve 4; a fourth spring 910 is fixed between two opposite ends of the first pipe 907 and the second pipe 908, and the fourth spring 910 is sleeved outside the third pipe 909. When sampling is not needed, the water inlet pipe 906 is separated from the water inlet hole 3, the second pipe 908 abuts against the inner wall of the sampling cylinder 2, and the fourth spring 910 is compressed;

when sampling is needed, the sampling tube 9 is pressed down through the knob 104, the sewage box 904 moves down along with the sampling tube 9 until the water inlet pipe 906 is coincided with the water inlet hole 3, the second tube 908 loses the extrusion of the inner wall of the sampling tube 2, the fourth spring 910 rebounds, the second tube 908 is pushed into the water inlet hole 3, the self-closing valve 4 is pushed open, and external sewage enters the sewage box 904. The purpose of third tube 909 is to adjust the overall length of inlet conduit 906 such that, when compressed, the overall length of inlet conduit 906 is reduced and, when relaxed, the length of inlet conduit 906 is increased.

Further, in order to facilitate the overlapping and the separation of the second pipe 908 and the water inlet 3, the edge of the inner end of the water inlet 3 is arc-shaped, so that the movement of the second pipe 908 cannot be blocked.

Furthermore, in order to limit the sliding among the first tube 907, the second tube 908 and the third tube 909, limiting blocks 911 are fixed at two ends of the third tube 909, limiting grooves 912 corresponding to the limiting blocks 911 are formed in the inner walls of the first tube 907 and the second tube 908, and the limiting blocks 911 slide in the limiting grooves 912 to prevent the second tube 908 from deflecting and excessively displacing.

Further, in order to fix a position the motion of inlet tube 906, the inner wall of sampling tube 9 is opened vertically and is equipped with constant head tank 913, and constant head tank 913 communicates the inner of all inlet openings 3, and during the use, inlet tube 906 slides along constant head tank 913 direction in sampler barrel 2, also as the alignment mark, the installation of the sampling tube 9 of being convenient for.

Further, in order to facilitate the installation and the detachment of the sewage box 904, the sewage box 904 and the sampling rack 901 are slidably clamped through a rail, and the principle thereof is similar to that of a drawer in furniture, and the details are not repeated herein.

Further, in order to facilitate the positioning of the socket 903 and the socket 902, the jack of the socket 903 and the socket 902 are square, the circumference of the jack is provided with a rear limiting hole 914, a sixth spring 916 is arranged in the limiting hole 914, the top end of the sixth spring 916 is fixedly connected with a clamping ball 917, the socket is provided with a limiting groove 915 matched with the clamping ball 917, when the sampling tube 9 is used, the clamping ball 917 is clamped into the limiting groove 915 under the action of the sixth spring 916, and the sampling tube 9 is prevented from being easily separated from each other by applying force when the sampling tube is separated.

In a further optimized scheme, the self-closing valve 4 comprises a first valve plate 401 and a second valve plate 402, the outer edge of the first valve plate 401 is connected with the water inlet 3 in a sliding mode, and the outer edge of the second valve plate 402 is fixedly connected with the water inlet 3; a valve shaft 403 is fixedly connected to the first valve plate 401, the valve shaft 403 is slidably connected with the first valve plate 401, a fifth spring 404 is sleeved on the valve shaft 403, and two ends of the fifth spring 404 are fixedly connected with the opposite end faces of the first valve plate 401 and the second valve plate 402 respectively; a plurality of water guide assemblies are arranged between the first valve plate 401 and the second valve plate 402; the water guide assembly comprises a first water guide hole 405 formed in the first valve plate 401 and a second water guide hole 406 formed in the second valve plate 402, and the first water guide hole 405 and the second water guide hole 406 are arranged in a staggered mode; a plurality of water blocking plugs are fixedly connected to the end face, facing the second valve plate 402, of the first valve plate 401 at positions corresponding to the second water guide holes 406, and the water blocking plugs are connected with the second water guide holes 406 in a sliding mode; the water blocking plug comprises a fixing rod 407 fixedly connected with the first valve plate 401, a plug 408 is fixedly connected to the top end of the fixing rod 407, and the diameter of the plug 408 is matched with that of the second water guide hole 406; the diameter of the fixing rod 407 is smaller than that of the plug 408. When sampling is not needed, the water inlet pipe 906 and the water inlet hole 3 are arranged in a staggered mode, and the self-closing valve 4 is not influenced by external force; at this time, the first valve plate 401 is pushed by the fifth spring 404 to be away from the second valve plate 402, the fixing rod 407 drives the plug 408 to block the second water guide hole 406 of the second valve plate 402, and the external sewage cannot enter the sampling tube 2 through the second valve plate 402. During sampling, push down sampling tube 9 through knob 104, make the inlet tube 906 and the inlet opening 3 of sewage box 904 align, second pipe 908 stretches into in the inlet opening 3, and promote first valve plate 401 and move to second valve plate 402, first valve plate 401 promotes the stopper 408 through dead lever 407 and moves, release second water guide hole 406 with stopper 408, because the diameter of dead lever 407 is less than second water guide hole 406, can't block up external sewage, external sewage passes through second water guide hole 406, first water guide hole 405 then gets into inlet tube 906, finally get into in the sewage box 904, realize the sewage sample. After the sampling is finished, the sampling tube 9 moves upwards, the second tube 908 is separated from the water inlet hole 3, the first valve plate 401 is not pushed any more, the fifth spring 404 rebounds to push the first valve plate 401 away from the second valve plate 402, the plug 408 blocks the second water guide hole 406 again, and the external sewage is not put into the sampling cylinder 2 any more.

The using method comprises the following steps:

the water depth of the point to be sampled and the preset sampling depth are determined, then the number of the second cylinders 6 is determined, and the connection is carried out in sequence.

The sampling tube 9 of the device is put under water, if the conditions allow, the drill bit 701 is contacted with the water bottom as much as possible, and the fixing is more convenient. Then the connecting rod 103 is pressed down through the knob 104, the second spring 105 is compressed, the moving block descends and coincides with the locking block 106, then the knob 104 is rotated, the moving block is clamped in the locking block 106, at the moment, the sampling tube 9 is pressed down through the connecting rod 103, the first spring 10 is compressed, the water inlet of the sewage box 904 moves downwards, the water inlet pipe 906 coincides with the water inlet hole 3, the fourth spring 910 rebounds to push the second pipe 908 into the water inlet hole 3, the first valve plate 401 is pushed to move towards the second valve plate 402, the first valve plate 401 pushes the plug 408 to move through the fixing rod 407, the plug 408 is pushed out of the second water guide hole 406, external sewage passes through the second water guide hole 406 and the first water guide hole 405 and then enters the water inlet pipe 906, and finally enters the sewage box 904, and sewage sampling is achieved.

The knob 104 is rotated again, the locking block 106 is separated from the moving block, the sampling tube 9 moves oppositely under the combined action of the first spring 10 and the second spring 105, the sewage box 904 and the water inlet pipe 906 are pushed to move upwards, the fourth spring 910 is compressed again, the second tube 908 is separated from the first valve plate, the first valve plate 401 is not stressed, the fifth spring 404 rebounds to push the first valve plate 401 away from the second valve plate 402, the plug 408 blocks the second water guide hole 406 again, and outside sewage cannot enter the sampling tube 2 any more.

The sampling device is taken out from the water, then the sampling tubes 9 in the first cylinder 5, the second cylinder 6 and the third cylinder 7 are taken out in sequence, the sewage box 904 is taken down, and sewage samples in the sewage box 904 are stored respectively.

The sampling length of the device is convenient to adjust, the device can be used for sampling sewage at different depths, and is convenient and rapid, high in sampling efficiency, time-saving and labor-saving, and capable of preventing disturbance of a sewage layer caused by multiple sampling and improving the accuracy of sewage sampling.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides an environmental protection monitoring is with novel sewage sampling device which characterized in that: the sampling device comprises a top seat (1) and a sampling tube (2), wherein the sampling tube (2) is arranged below the top seat (1), a plurality of water inlet holes (3) are longitudinally formed in the side wall of the sampling tube (2) at equal intervals, and self-closing valves (4) are arranged in the water inlet holes (3);

the sampling tube (2) comprises a first tube (5), a second tube (6) and a third tube (7) which are sequentially arranged, the top end of the first tube (5) is fixedly connected with the top seat (1), the second tube (6) is inserted into the bottom end of the first tube (5), and the top end of the third tube (7) is inserted into the bottom end of the second tube (6);

a plurality of plug-in components (8) are circumferentially arranged between the first barrel (5) and the second barrel (6), and a plurality of other plug-in components (8) are circumferentially arranged between the second barrel (6) and the third barrel (7);

the inner cavities of the first cylinder (5), the second cylinder (6) and the third cylinder (7) are respectively connected with sampling tubes (9) in a sliding manner, and the sampling tubes (9) are sequentially spliced end to end; a first spring (10) is connected between the bottom end of the sampling tube (9) in the third barrel (7) and the bottom surface of the inner cavity of the sampling tube (9) at the lowest end;

the sampling tube (9) is arranged corresponding to the water inlet hole (3).

2. The novel sewage sampling device for environmental protection monitoring according to claim 1, wherein: the top seat (1) comprises a bottom plate (101), and the bottom surface of the bottom plate (101) is fixedly connected with the first cylinder (5); a top plate (102) is fixedly connected to the top surface of the bottom plate (101), a connecting rod (103) is rotatably connected to the top plate (102), a knob (104) is fixedly connected to the top end of the connecting rod (103), and the bottom end of the connecting rod (103) sequentially penetrates through the top plate (102) and the bottom plate (101) to be slidably connected with the sampling tube (9); a locking device is arranged between the bottom end of the knob (104) and the top end of the top plate (102).

3. The novel sewage sampling device for environmental protection monitoring according to claim 2, wherein: the locking device comprises a locking assembly and a second spring (105), the second spring (105) is sleeved on the connecting rod (103), and two ends of the second spring (105) are fixedly connected with the bottom surface of the knob (104) and the top surface of the top plate (102) respectively; the locking assembly comprises a locking block (106) fixedly connected to the top surface of the top plate (102) and a moving block (107) fixedly connected to the bottom end of the knob (104), and the locking block (106) and the moving block (107) are arranged correspondingly.

4. The novel sewage sampling device for environmental protection monitoring according to claim 1, wherein: the plug-in assembly (8) comprises an upper fixing block (801) fixedly connected with the outer wall of the lower end of the first cylinder (5), a lower fixing block (802) fixedly connected with the outer wall of the top end of the second cylinder (6), and the upper fixing block (801) and the lower fixing block (802) are arranged correspondingly; a fixing groove (803) is formed in the top surface of the upper fixing block (801), a sliding block (804) is detachably connected in the fixing groove (803), an unlocking rod (805) is fixedly connected to the bottom end of the sliding block (804), and the unlocking rod (805) penetrates through the lower fixing block (802) and is fixedly connected with a button (806); the unlocking rod (805) is sleeved with a third spring (807), and two ends of the third spring (807) are fixedly connected with the top surface of the button (806) and the bottom surface of the lower fixing block (802) respectively.

5. The novel sewage sampling device for environmental protection monitoring according to claim 1, wherein: the sampling tube (9) comprises a sampling frame (901), the top end of the sampling frame (901) is fixedly connected with a bearing head (902), the bottom end of the sampling tube (9) is fixedly connected with a socket seat (903), and the bearing head (902) is inserted into the socket seat (903) of the other sampling tube (9); sample frame (901) is gone up to dismantle and is connected with a plurality of sewage boxes (904), sewage box (904) are including box body (905), the upper end intercommunication of box body (905) has inlet tube (906), inlet tube (906) with inlet opening (3) can be dismantled and be connected.

6. The novel sewage sampling device for environmental protection monitoring according to claim 5, wherein: the water inlet pipe (906) comprises a first pipe (907) and a second pipe (908), a third pipe (909) is connected between the first pipe (907) and the second pipe (908) in a sliding manner, one end of the first pipe (907) is fixedly connected with the box body (905) and communicated with the inner cavity of the box body (905), the other end of the first pipe (907) is connected with one end of the third pipe (909) in a sliding manner, the other end of the third pipe (909) is connected with one end of the second pipe (908) in a sliding manner, and the second pipe (908) is connected with the water inlet hole (3) in a sliding manner; the end of the third pipe (909) is detachably connected with the self-closing valve (4); a fourth spring (910) is fixedly connected between two opposite ends of the first pipe (907) and the second pipe (908), and the fourth spring (910) is sleeved outside the third pipe (909).

7. The novel sewage sampling device for environmental protection monitoring according to claim 1, wherein: the self-closing valve (4) comprises a first valve plate (401) and a second valve plate (402), the outer edge of the first valve plate (401) is connected with the water inlet hole (3) in a sliding mode, and the outer edge of the second valve plate (402) is fixedly connected with the water inlet hole (3); a valve shaft (403) is fixedly connected to the first valve plate (401), the valve shaft (403) is connected with the first valve plate (401) in a sliding mode, a fifth spring (404) is sleeved on the valve shaft (403), and two ends of the fifth spring (404) are fixedly connected with the opposite end faces of the first valve plate (401) and the second valve plate (402) respectively; a plurality of water guide assemblies are arranged between the first valve plate (401) and the second valve plate (402).

8. The novel sewage sampling device for environmental protection monitoring according to claim 7, wherein: the water guide assembly comprises a first water guide hole (405) formed in the first valve plate (401) and a second water guide hole (406) formed in the second valve plate (402), and the first water guide hole (405) and the second water guide hole (406) are arranged in a staggered mode; the end face, facing the second valve plate (402), of the first valve plate (401) is fixedly connected with a plurality of water blocking plugs at positions corresponding to the second water guide holes (406), and the water blocking plugs are connected with the second water guide holes (406) in a sliding mode.

9. The novel sewage sampling device for environmental protection monitoring according to claim 8, wherein: the water blocking plug comprises a fixing rod (407) fixedly connected with the first valve plate (401), a plug head (408) is fixedly connected to the top end of the fixing rod (407), and the diameter of the plug head (408) is matched with that of the second water guide hole (406); the diameter of the fixing rod (407) is smaller than that of the plug head (408).