Surface water heavy metal content detector

Abstract

The invention relates to the technical field of surface water heavy metal detection, and discloses a surface water heavy metal content detector, which comprises a detector body and an enrichment assembly, the detector body is detachably connected with the enrichment assembly through the assembling assembly, the assembling assembly comprises a mounting plate, a turning strip, a rotating shaft and an assembling column, and the mounting plate is fixedly arranged on the outer side of the detector body. Compared with the prior art, the enrichment device has the following advantages and effects that the enrichment device does not need to be externally provided with a supporting frame for combined use, the enrichment device can be kept in preparation and fixation during use only by rotating the turning plate on the detector body and enabling the assembly column to quickly support the enrichment device, preparation operation before enrichment is optimized, and the detection efficiency is improved. Meanwhile, the burden of an engineer for carrying materials when going out is reduced, the filter assembly for enrichment is mounted on the detachable frame plate, the filter assembly can be driven to freely move towards the enrichment container through the movable frame so as to meet the requirements for contact with sampled water and enrichment discharge, the operation is orderly and rapid, and the convenience effect during enrichment operation can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of surface water heavy metal detection, and in particular to a surface water heavy metal content detector. Background Art

[0002] Surface water is an important component of natural water resources and an important material basis for human survival and development. Heavy metal testing of surface water can ensure drinking water safety, protect public health, understand the changing trend and pollution degree of water quality, and provide a scientific basis for water quality evaluation, environmental planning and management.

[0003] The water quality heavy metal detector is a device specially used to detect the heavy metal content in water bodies. It plays a vital role in the monitoring of surface water. It can detect the heavy metal ions in the water body with high sensitivity through the detector and calculate its concentration value, thus providing a reliable scientific basis for surface water quality assessment and detection.

[0004] At present, in the heavy metal detection activities of surface water, the whole process is usually carried out like this: the detection engineer brings the detection instrument to the vicinity of the surface water to be detected, then enriches and samples the surface water through the collection container, and then turns on the detector for detection. Since the operation is often carried out outdoors, there are the following deficiencies in the detection process:

[0005] 1. The enrichment device often needs to be supported by an external support frame. The preparation for use and the storage after enrichment are relatively cumbersome, and the external support frame is also easy to cause a burden to carry when going out;

[0006] 2. Since the heavy metal content of the sampled water is unknown, engineers often wear gloves when operating. However, when loading and unloading the enriched filter membrane, the gloves often need to be contaminated with the sampled water before operating the detector. The sampled water is easy to come into contact with the detector-related equipment, causing corrosion and water immersion failures to the equipment. Summary of the invention

[0007] The purpose of the present invention is to provide a surface water heavy metal content detector, which is convenient to carry and use outdoors and can avoid contamination of sampled water, thereby increasing the life of the equipment.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: A surface water heavy metal content detector, comprising a detector body and an enrichment component;

[0009] The detector body is detachably connected to the enrichment component through an assembly component, which includes a mounting plate, a turning bar, a rotating shaft and an assembly column. The mounting plate is fixedly arranged on the outside of the detector body, one end of the turning bar is rotatably connected to the mounting plate through the rotating shaft, and the assembly column is fixedly arranged on the other end of the turning bar;

[0010] The enrichment assembly includes an enrichment device, an assembly barrel and an assembly hole. The assembly barrel is fixedly arranged outside the enrichment device. The assembly hole is opened on the bottom surface of the assembly barrel. The assembly barrel is plugged into the assembly column through the assembly hole.

[0011] The enrichment component also includes a detachable frame, a displacement component, a filtering component, a loading and unloading component, a fixed pipe component and a return component. The detachable frame is detachably connected to the displacement component through the loading and unloading component. The displacement component can move along the height direction of the enrichment device. The filtering component is installed on the detachable frame, and the return component is connected to the displacement component.

[0012] The present invention is further configured as follows: a water pipe is provided at the bottom end of the enrichment device, which is connected to the fixed pipe assembly after extending into the filtering assembly; the displacement assembly includes a guide rail opened on the outside of the enrichment device and a moving frame in sliding contact with the outside of the enrichment device; a sliding block is fixedly provided on the side of the moving frame close to the enrichment device, and the moving frame slides along the guide rail through the sliding block.

[0013] By adopting the above technical solution, the moving frame can move linearly up and down along the guide rail on the outside of the enrichment device.

[0014] The present invention is further configured as follows: the filter assembly includes a shell fixedly mounted on the bottom end of the detachable frame plate, an inlet pipe fixedly mounted on the top end of the shell, a detection cavity opened in the shell, and a filter device detachably installed in the detection cavity.

[0015] By adopting the above technical solution, during the enrichment process, the outer shell drives the filter device to immerse in the sampled water, and the suction tube is fixed by the fixed tube assembly and moves downward synchronously with the outer shell.

[0016] The present invention is further configured as follows: the detection chamber includes a top chamber, a transition chamber and a filter chamber which are sequentially opened in the outer shell from top to bottom; the filter device includes a filter element and a pop-up element which are respectively installed in the filter chamber and the transition chamber; the filter element is fixed to the outer shell by a locking element.

[0017] The present invention is further configured as follows: the filter element comprises a mounting frame inserted into the filter cavity, a filter membrane fixed in the mounting frame and a sealing ring fixed outside the mounting frame, and the outside of the mounting frame is fitted with the transition cavity through the sealing ring.

[0018] By adopting the above technical solution, the sealing ring is closely attached to the transition cavity, thereby preventing the sampled water from penetrating into the interior of the housing.

[0019] The present invention is further configured as follows: the assembly and removal assembly comprises an insert block assembly and a force-bearing panel which are detachably connected to each other;

[0020] The plug block assembly comprises a plug block fixed with a detachable frame plate on one side, a lock cavity opened on a side of the plug block away from the detachable frame plate, a card block and a magnetic plate fixed in the lock cavity, and two symmetrically distributed inclined surfaces are arranged on the surface of the card block.

[0021] By adopting the above technical solution, it is convenient to connect the clamping block to the force-bearing panel through the inclined surface.

[0022] The present invention is further configured as follows: the water pipe is connected to the fixed pipe assembly after being inserted into the inlet pipe, a sliding opening is provided on the surface of the detachable frame plate, and a through groove and an installation groove communicating with the sliding opening are provided inside the detachable frame plate, and the fixed pipe assembly includes a driving assembly slidably arranged in the through groove, a clamping assembly abutting against the outside of the water pipe, and a tightening assembly connected to the driving assembly.

[0023] By adopting the above technical solution, the water pipe is fixed by the clamping component, and the clamping state of the clamping component is controlled by the tensioning component.

[0024] The present invention is further configured as follows: the driving assembly includes a push plate whose outer side is in sliding contact with the through groove, a finger block fixedly arranged on the outer side of the push plate and a third spring whose two ends are respectively fixed to the through groove and the push plate; the clamping assembly includes a clamping arm symmetrically arranged on the outer side of the water pipe, an arc plate fixedly arranged at one end of the clamping arm, an axis column fixedly connected to the clamping arm at the bottom end, and a bracket fixedly arranged in the top cavity; the outer side of the axis column is rotatably connected to the bracket, and a first coil spring for helping the axis column to rotate back is fixedly installed on the bracket, and the inner side of the arc plate is in contact with the water pipe.

[0025] By adopting the above technical solution, the outer side of the water pipe is clamped by the arc plate, so that the water pipe can keep synchronization with the up and down movement of the outer shell after extending into the inner part of the outer shell.

[0026] The present invention is further configured as follows: the return assembly includes a recovery cylinder and a return button, the recovery cylinder includes a protective cylinder fixedly connected to the enrichment device on the outside, a rotary tube rotatably installed inside the protective cylinder, two limit plates fixed at intervals on the outside of the rotary tube, and a winding rope wound on the rotary tube, the bottom end of the winding rope slides out of the protective cylinder and is fixed to the moving frame, and a second winding spring for rotational return is installed on the outside of the rotary tube.

[0027] By adopting the above technical solution, when the coil needs to be reset, the second coil spring can drive the coil to return to its original position.

[0028] The present invention is further configured as follows: a control module is embedded in the detachable frame plate.

[0029] The beneficial effects of the present invention are:

[0030] 1. The enrichment device does not need to be used in combination with an external support frame. It only needs to rotate the flap on the detector body and let the assembly column quickly support the enrichment device, so that the enrichment device can be kept in the ready position when used, which optimizes the preparation operation before enrichment and reduces the burden of engineers carrying materials when going out;

[0031] 2. The filter assembly for enrichment is installed on a detachable frame. The frame can be moved to move the filter assembly freely toward the enrichment container to meet the contact with the sampled water and enrichment and discharge. The operation is orderly and fast, which can improve the convenience of enrichment operation;

[0032] 3. After enrichment, the detachable frame can be taken out from the moving frame through the loading and unloading assembly. Engineers do not need to touch the filter membrane for loading and unloading. They only need to operate the detachable frame to make the locking parts and elastic parts cooperate to quickly send the filter membrane to the detector body, so as to reduce the contact between the sampled water and the engineer's hands, so as to protect the hands. It can also protect the detector body and keyboard and other equipment that need to be touched during operation to avoid corrosion and water immersion;

[0033] 4. After the rack is moved, it can automatically return to its original position through the return assembly. After the water quality test is completed, the detachable rack can drive the filter to quickly reset, making it convenient to fold and carry, so as to improve the efficiency of outdoor water quality testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A schematic diagram of the structure of a surface water heavy metal content detector provided by an embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the enrichment component in an embodiment of the present invention;

[0037] Figure 3 It is a schematic diagram of the structure of the enrichment device in the embodiment of the present invention;

[0038] Figure 4 It is a schematic diagram of the structure of the displacement assembly in an embodiment of the present invention;

[0039] Figure 5 It is a schematic diagram of the structure of the filter assembly in an embodiment of the present invention;

[0040] Figure 6 This is a schematic diagram of the structure inside the housing in an embodiment of the present invention;

[0041] Figure 7 It is a structural schematic diagram of a locking member in an embodiment of the present invention;

[0042] Figure 8 It is a structural schematic diagram of an insert block in an embodiment of the present invention;

[0043] Fig. 9 It is a structural schematic diagram of a force-bearing plate in an embodiment of the present invention;

[0044] Fig.10 This is a schematic structural diagram of a fixed pipe assembly in an embodiment of the present invention;

[0045] Fig.11 It is a schematic diagram of the structure of the clamping assembly in an embodiment of the present invention;

[0046] Fig.12 This is a schematic diagram of the structure of a return assembly in an embodiment of the present invention;

[0047] Fig.13 Schematic diagram of the structure of the card rack in an embodiment of the present invention.

[0048] In the figure, 1, detector body; 2, enrichment assembly; 111, mounting plate; 112, turning bar; 113, rotating shaft; 114, assembly column; 21, enrichment device; 22, assembly cylinder; 23, assembly hole; 24, water pipe; 3, detachable frame plate; 4, displacement assembly; 5, filtering assembly; 6, loading and unloading assembly; 7, fixed pipe assembly; 8, return assembly;

[0049] 31. Slide; 32. Through slot; 33. Mounting slot; 34. Control module; 41. Guide rail; 42. Shifting rack; 43. Slider; 51. Housing; 52. Inlet pipe; 53. Top cavity; 54. Transition cavity; 55. Filter cavity; 56. Filter element; 57. Pop-up element; 58. Locking element; 561. Mounting frame; 562. Filter membrane; 563. Sealing ring; 564. Notch; 571. Telescopic ring ; 572, first spring; 581, installation cavity; 582, slide groove; 583, locking block; 584, electromagnetic member; 585, telescopic block; 586, magnetic block; 587, push groove; 588, compression spring; 61, plug block; 62, lock cavity; 63, card block; 64, magnetic plate; 65, inclined surface; 66, force plate; 67, slot; 68, telescopic slot; 69, magnetic bead; 610, second spring;

[0050] 71. driving assembly; 72. clamping assembly; 73. tensioning assembly; 711. push plate; 712. finger block; 713. third spring; 714. first slope; 721. clamping arm; 722. arc plate; 723. shaft column; 724. bracket; 725. first coil spring; 726. pulley; 731. driving block; 732. second slope; 733. push groove; 734. fourth spring; 735. support tube; 736. guide rod; 811. protection tube; 812. rotary tube; 813. limit plate; 814. coiling rope; 815. second coil spring; 816. tooth groove; 821. pressing button; 822. pressing tube; 823. fifth spring; 824. moving disk; 825. bracket; 826. spring sheet. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The present invention specifically provides a surface water heavy metal content detector, please refer to Figure 1 , including a detector body 1 and an enrichment component 2.

[0053] The detector body 1 is detachably connected to the enrichment component 2 through an assembly component, so that the enrichment component 2 no longer needs to be loaded with an external support frame structure, so as to facilitate weight reduction of components during outdoor sampling and improve detection convenience.

[0054] When implementing, please refer to Figure 2 The assembly assembly includes a mounting plate 111, a flap 112, a rotating shaft 113 and an assembly column 114. The mounting plate 111 is fixedly mounted on the outside of the detector body 1. One end of the flap 112 is rotatably connected to the mounting plate 111 through the rotating shaft 113. The assembly column 114 is fixedly mounted on the other end of the flap 112. The rotational friction between the rotating shaft 113 and the mounting plate 111 can be set so that the flap 112 can rotate under a certain thrust, which is convenient for rotating the flap 112 to be stored under the mounting plate 111, and also convenient for preventing the flap 112 from rotating easily after it is rotated out.

[0055] Among them, the enrichment component 2 includes an enrichment device 21, an assembly cylinder 22 and an assembly hole 23. The assembly cylinder 22 is fixedly arranged on the outside of the enrichment device 21, and the assembly hole 23 is opened on the bottom surface of the assembly cylinder 22. The assembly cylinder 22 is plugged into the assembly column 114 through the assembly hole 23. The inner wall of the assembly hole 23 is a polygonal structure, and the outer shape of the assembly column 114 matches the assembly hole 23, so that when the assembly hole 23 is inserted into the assembly column 114, the enrichment device 21 will not rotate circumferentially, so as to improve the placement stability of the enrichment device 21, so that when sampling and testing outdoors, there is no need to set up the enrichment device 21 through an external support frame, which provides convenience for the use and storage of the enrichment device 21.

[0056] It is worth noting that the detector body 1 and the enrichment device 21 are existing common water quality heavy metal detection components. The changes in this technical solution are only implemented on the outer shell of the detector body 1 and the enrichment device 21. Therefore, the usage and principle of the detector body 1 and the enrichment device 21 will no longer be explained in detail.

[0057] For further information, please refer to Figure 3 The enrichment component 2 also includes a detachable frame 3, a displacement component 4, a filter component 5, a loading and unloading component 6, a fixed pipe component 7 and a return component 8. The detachable frame 3 is detachably connected to the displacement component 4 through the loading and unloading component 6. The displacement component 4 can move along the height direction of the enrichment device 21. The filter component 5 is installed on the detachable frame 3, so that when the water quality sample is enriched on the filter component 5, the detachable frame 3 can be removed and the filter component 5 can be moved to the detector body 1 for detection. The whole process does not require hand contact with the filter component 5 to reduce contact with the sampled water. The return component 8 is connected to the displacement component 4, and the return component 8 drives the displacement component 4 to reset after moving down.

[0058] For details, please refer to Figure 3 and Figure 4 A water pipe 24 is provided at the bottom of the enrichment device 21. Before each water enrichment, the bottom of the water pipe 24 needs to be soaked in water for cleaning. The water pipe 24 is extended into the filter assembly 5 and connected to the fixed pipe assembly 7. The displacement assembly 4 includes a guide rail 41 opened on the outside of the enrichment device 21 and a moving frame 42 in sliding contact with the outside of the enrichment device 21. A slider 43 is fixedly provided on the side of the moving frame 42 close to the enrichment device 21. The moving frame 42 slides along the guide rail 41 through the slider 43, so that the moving frame 42 can move up and down linearly along the guide rail 41 on the outside of the enrichment device 21, so as to drive the detachable frame plate 3 and the filter assembly 5 to move downward, so that the filter assembly 5 is in contact with the sampled water, and the two water pipes 24 can respectively perform enrichment treatment of sucking and discharging the sampled water.

[0059] For further information, please refer to Figure 5The filter assembly 5 includes a shell 51 fixed to the bottom end of the detachable frame 3, an inlet pipe 52 fixed to the top end of the shell 51, a detection chamber opened in the shell 51, and a filter device detachably installed in the detection chamber. During the enrichment process, the shell 51 drives the filter device to immerse in the sampled water, and the suction pipe 24 is fixed by the fixed pipe assembly 7 and moves downward synchronously with the shell 51, so that the suction pipe 24 is also in contact with the sampled water in the shell 51, which is convenient for sucking and discharging the sampled water;

[0060] During implementation, a container filled with sampled water and an empty container are placed directly below the two filter components 5 respectively. Then, when the two filter components 5 are synchronously moved downward under the drive of the moving frame 42, the filter device at the water inlet end can be brought into contact with the sampled water, and the sampled water is extracted through the straw 24. Then, the sampled water is discharged from the other straw 24 into the empty container under the treatment of the enrichment device 21, and the sampled water components can be enriched in the filter device in the empty container, thereby completing the enrichment operation of the sampled water.

[0061] For details, please refer to Figure 6 The detection chamber includes a top chamber 53, a transition chamber 54 and a filter chamber 55 which are sequentially opened in the shell 51 from top to bottom, so as to facilitate filtering of the sampled water and provide a reasonable installation space for the straw 24.

[0062] Among them, the filtering device includes a filter element 56 and a pop-up element 57 respectively installed in the filter chamber 55 and the transition chamber 54. The filter element 56 is fixed to the outer shell 51 by a locking element 58, so that the filter element 56 can be quickly loaded and unloaded in the outer shell 51 through the cooperation of the pop-up element 57 and the locking element 58, so as to facilitate removal after enrichment, and can be quickly installed in the outer shell 51 after cleaning or replacement.

[0063] Specifically, the filter element 56 includes a mounting frame 561 inserted into the filter cavity 55, a filter membrane 562 fixed in the mounting frame 561, and a sealing ring 563 fixed outside the mounting frame 561. The filter membranes 562 in the two filter elements 56 are made of different materials. The one at the water inlet is used for preliminary filtering of impurities in the water, while the one at the water outlet is used for filtering out heavy metals. Since this purpose and principle are common methods for existing sampling water heavy metal detection, they will not be described in detail here.

[0064] When heavy metals are enriched on the filter membrane 562 at the water outlet, the installation frame 561 can be taken out from the housing 51 and moved to the detector body 1 for heavy metal detection. The entire process only requires holding the upper part of the detachable frame 3 with the hand to move and eject the installation frame 561, so that the hand will not come into contact with the sampled water.

[0065] The sealing ring 563 is made of ABS plastic, and the outer side of the mounting frame 561 is fitted with the transition cavity 54 through the sealing ring 563, so that the sealing ring 563 and the transition cavity 54 are closely attached to each other, preventing the sampled water from penetrating into the interior of the housing 51;

[0066] For details, please refer to Figure 7 The pop-up member 57 includes a telescopic ring 571 whose outer side is in sliding contact with the transition cavity 54 and a first spring 572 whose bottom end is fixedly connected to the telescopic ring 571. The top of the first spring 572 is fixed to the transition cavity 54, and the bottom surface of the telescopic ring 571 is in contact with the installation frame 561. When the installation frame 561 is installed inside the housing 51, the first spring 572 is in a compressed state, so that when the installation frame 561 needs to be taken out, the first spring 572 can pop the installation frame 561 downward through the telescopic ring 571.

[0067] The sealing ring 563 has notches 564 on both sides. The locking member 58 includes an installation cavity 581 and a slide groove 582 which are provided inside the housing 51. The installation cavity 581 and the slide groove 582 are communicated with each other. A locking block 583 is rotatably installed in the installation cavity 581. One end of the locking block 583 close to the filter cavity 55 passes through the notch 564 and is buckled with the sealing ring 563. That is, the inner end of the locking block 583 abuts against the upper part of the notch 564 of the sealing ring 563, so that the installation frame 561 can be stably inserted into the filter cavity 55.

[0068] An electromagnetic component 584 is fixedly installed in the installation cavity 581. The electromagnetic component 584 is an existing commonly used electromagnetic generating component. A telescopic block 585 is slidably installed in the slide groove 582. The telescopic block 585 can slide up and down along the slide groove 582. A magnetic block 586 for cooperating with the electromagnetic component 584 is fixedly installed on the top of the telescopic block 585. When the electromagnetic component 584 is energized, it will generate a repulsive force on the magnetic block 586, so that the magnetic block 586 drives the telescopic block 585 to move downward, and the telescopic block 585 A push groove 587 is provided on the outer side, and the telescopic block 585 contacts the other end of the locking block 583 through the push groove 587, so that when the telescopic block 585 moves downward, the locking block 583 can be forced through the push groove 587, so that the locking block 583 can stably force the sealing ring 563 and fasten it. A compression spring 588 is fixed in the slide groove 582 to provide a telescopic elastic force for the telescopic block 585, and the upper and lower ends of the compression spring 588 are fixedly connected to the telescopic block 585 and the slide groove 582 respectively;

[0069] When the electromagnetic component 584 is powered off, the telescopic block 585 will move upward through the compression spring 588, thereby causing the locking block 583 to rotate clockwise and the inner end of the locking block 583 to move out of the notch 564, so that the installation frame 561 can be ejected from the housing 51 under the elastic force of the telescopic ring 571. When the installation frame 561 needs to be installed, the filter cavity 55 and the installation frame 561 are aligned by holding the detachable frame plate 3, and then the installation frame 561 can be pressed into the filter cavity 55, and then the electromagnetic component 584 is powered on, so that the locking block 583 returns to its position and fastens the notch 564.

[0070] For further information, please refer to Figure 8 The loading and unloading assembly 6 includes an insert block assembly and a force-bearing panel that are detachably connected to each other. The insert block assembly is used to be connected to the detachable frame 3, and the force-bearing panel is installed on the moving frame 42, so that the detachable frame 3 can be quickly separated from the moving frame 42 when the installation frame 561 needs to be moved to the detector body 1, and returned to its original position after the operation is completed.

[0071] Specifically, the plug block assembly includes a plug block 61 fixed to the detachable frame plate 3 on one side, a lock cavity 62 opened on the side of the plug block 61 away from the detachable frame plate 3, a card block 63 and a magnetic plate 64 fixed in the lock cavity 62, the plug block 61 has a square vertical section, the number of the lock cavities 62 is equidistantly arranged at four locations on the outside of the plug block 61, and the surface of the card block 63 is provided with two symmetrically distributed inclined surfaces 65, so as to facilitate the card block 63 to be connected to the force-bearing panel through the inclined surfaces 65;

[0072] Please refer to Fig. 9 The force-bearing panel includes a force-bearing plate 66 fixedly connected to the moving frame 42 on the outside, a slot 67 and a telescopic slot 68 opened in the force-bearing plate 66, a magnetic bead 69 is slidably installed in the telescopic slot 68, and the magnetic bead 69 is fixedly connected to the inner end of the telescopic slot 68 through a second spring 610. The magnetic bead 69 can only be telescopic in the telescopic slot 68. The side of the magnetic bead 69 away from the slot 67 falls into the upward vertical projection range of the telescopic slot 68, so that the inner end of the magnetic bead 69 can be partially moved into the slot 67, and the outer side of the plug block 61 is plugged into the slot 67. The lock cavity 62 is magnetically connected to the magnetic bead 69 through the magnetic plate 64, and the surface of the magnetic bead 69 is inserted into the lock cavity 62 after sliding across the inclined surface 65, so that when the plug-in block 61 is inserted into the slot 67, the card block 63 can squeeze the magnetic bead 69 through the inclined surface 65, so that the magnetic bead 69 shrinks into the telescopic groove 68, and after the card block 63 continues to move in, the magnetic bead 69 can be moved from the other inclined surface 65 into the lock cavity 62 through the elastic force of the second spring 610, and is magnetically connected to the magnetic plate 64, so that the plug-in block 61 can be stably inserted into the slot 67.

[0073] For further information, please refer to Fig.10After the water pipe 24 is inserted into the inlet pipe 52, it is connected with the fixed pipe assembly 7, so that when the shell 51 moves downward, it can drive the bottom end of the straw 24 to move downward synchronously, so as to facilitate the bottom end of the straw 24 to be brought into the easy inner part. A sliding opening 31 is provided on the surface of the detachable frame 3, and a through groove 32 and an installation groove 33 communicated with the sliding opening 31 are provided inside the detachable frame 3. The fixed pipe assembly 7 includes a driving assembly 71 slidably arranged in the through groove 32, a clamping assembly 72 abutting against the outer side of the water pipe 24, and a loosening assembly 73 connected to the driving assembly 71. The water pipe 24 is fixed in place by the clamping assembly 72, and the clamping state of the clamping assembly 72 is controlled by the loosening assembly 73, so as to facilitate the loading and unloading of the straw 24.

[0074] For details, please refer to Fig.10 and Fig.11 The driving assembly 71 includes a push plate 711 whose outer side is in sliding contact with the through groove 32, a finger block 712 fixed to the outer side of the push plate 711, and a third spring 713 whose two ends are respectively fixed to the through groove 32 and the push plate 711. The third spring 713 provides a return elastic force for the push plate 711, and the outer end of the finger block 712 extends out of the sliding mouth 31 to facilitate the finger to push the finger block 712 downward to make the push plate 711 slide downward.

[0075] Please refer to Fig.11 The clamping assembly 72 includes a clamping arm 721 symmetrically arranged on the outside of the water pipe 24, an arc plate 722 fixedly arranged at one end of the clamping arm 721, a shaft column 723 fixedly connected to the clamping arm 721 at the bottom end, and a bracket 724 fixedly arranged in the top cavity 53. The outer side of the shaft column 723 is rotatably connected to the bracket 724. The bracket 724 is fixedly provided with a first coil spring 725 that helps the shaft column 723 to rotate back to its original position, so that when the clamping arm 721 rotates on the bracket 724 through the shaft column 723, it can be reset by the first coil spring 725. In normal state, the two clamping arms 721 are driven by the first coil spring 725, and the arc plates 722 thereon abut against each other, and the inner side of the arc plate 722 abuts against the water pipe 24, so that the outer side of the water pipe 24 is clamped by the arc plate 722, so that the water pipe 24 can keep synchronization with the up and down movement of the shell 51 after extending into the shell 51.

[0076] When the locking cam 730 is in the state of being moved, the locking cam 731 is in the state of being moved along the cam 732, and the locking cam 733 is in the state of being moved along the cam 732. When the locking cam 730 is in the state of being moved along the cam 732, the locking cam 733 is in the state of being moved along the cam 732.

[0077] The support tube 735 allows the driving block 731 to keep sliding vertically in the direction away from or close to the clamping arm 721. When the water pipe 24 needs to be taken out, the push plate 711 is pressed down to move the driving block 731 away from the clamping arm 721, so that the arc plates 722 on the clamping arm 721 move away from each other, thereby separating from the water pipe 24. Before the water pipe 24 is extended into the housing 51, the arc plates 722 are first moved away from each other in the same way, and then the force applied to the push plate 711 is cancelled, so that the arc plates 722 clamp the outer wall of the water pipe 24 against each other, so that the water pipe 24 can be fixed in place in the housing 51.

[0078] For further information, please refer to Fig.12 The return assembly 8 includes a recovery cylinder and a return button. When the moving frame 42 moves downward, the moving frame 42 is automatically recovered by the recovery cylinder, and the recovery cylinder is controlled by operating the return button;

[0079] Specifically, the recovery cylinder includes a protective cylinder 811 fixedly connected to the enrichment device 21 on the outside, a coil 812 rotatably installed inside the protective cylinder 811, two limit plates 813 fixedly installed on the outside of the coil 812 at intervals, and a winding rope 814 wound on the coil 812. The top of the winding rope 814 is fixedly installed on the coil 812 and then wound. The winding range of the winding rope 814 on the coil 812 is limited by the two limit plates 813. The bottom end of the winding rope 814 slides out of the protective cylinder 811 and is fixed to the moving frame 42, so that when the moving frame 42 moves downward, the coil 812 can be pulled by the winding rope 814 to rotate. A second winding spring 815 for rotation return is installed on the outside of the coil 812. When the coil 812 needs to be reset, the second winding spring 815 can drive the coil 812 to return, so that the coil 812 can retract the winding rope 814 and drive the moving frame 42 to move upward.

[0080] Please refer to Fig.12 and Fig.13The return button includes a pressing button 821 slidably installed on the protective tube 811, a pressing tube 822 fixed at one end of the pressing button 821 moving into the protective tube 811, and a fifth spring 823 whose two ends are respectively fixed to the pressing tube 822 and the protective tube 811. The pressing button 821 can only be telescopically slid on the protective tube 811. When the pressing button 821 is pressed, the pressing tube 822 will be pushed in the protective tube 811 and reset by the fifth spring 823.

[0081] Among them, a tooth groove 816 is opened on the inner side of the spiral tube 812, and a moving disk 824 is fixed on the outer wall of the pressing tube 822. A bracket 825 is rotatably set on the moving disk 824, and the outer end of the bracket 825 is in contact with the tooth groove 816. When it is necessary to move the moving frame 42 downward, thereby moving the detachable frame plate 3 downward, the moving frame 42 can be directly pressed downward, so that the moving frame 42 pulls the winding rope 814, so that the spiral tube 812 rotates and the tooth groove 816 rotates synchronously. Under the blocking of the bracket 825, the tooth groove 816 cannot return to its original position under the action of the second winding spring 815, so that the spiral tube 812 cannot return to its original position. When the rotary tube 812 needs to return to its original position, it only needs to press the pressing button 821, so that the movable disk 824 drives the bracket 825 to be misaligned with the tooth groove 816, so that the rotary tube 812 automatically rotates and returns to its original position, so as to pull the movable frame 42 to automatically move up. A spring sheet 826 is installed between the movable disk 824 and the bracket 825. The spring sheet 826 provides a returning elastic force for the bracket 825, so that the bracket 825 can continue to return to its original position with the tooth groove 816. After completion, the pressing button 821 can be reset through the fifth spring 823, so that the bracket 825 returns to its original position.

[0082] It is worth noting that a control module 34 is embedded in the detachable frame 3. The control module 34 includes a switch and a power supply module. The power supply module is used to supply power to the electromagnetic component 584 and control the on and off of the electromagnetic component 854 by pressing the switch.

[0083] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0084] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A surface water heavy metal content detector, characterized in that: It comprises a detector body (1) and an enrichment component (2); The detector body (1) is detachably connected to the enrichment component (2) via an assembly component, the assembly component comprising a mounting plate (111), a turning bar (112), a rotating shaft (113) and an assembly column (114), the mounting plate (111) being fixedly arranged on the outside of the detector body (1), one end of the turning bar (112) being rotatably connected to the mounting plate (111) via the rotating shaft (113), and the assembly column (114) being fixedly arranged on the other end of the turning bar (112); The enrichment assembly (2) comprises an enrichment device (21), an assembly cylinder (22) and an assembly hole (23); the assembly cylinder (22) is fixedly arranged outside the enrichment device (21); the assembly hole (23) is opened on the bottom surface of the assembly cylinder (22); the assembly cylinder (22) is plugged into the assembly column (114) through the assembly hole (23); The enrichment assembly (2) further comprises a detachable frame (3), a displacement assembly (4), a filtering assembly (5), a loading and unloading assembly (6), a fixed pipe assembly (7) and a return assembly (8); the detachable frame (3) is detachably connected to the displacement assembly (4) via the loading and unloading assembly (6); the displacement assembly (4) can be moved along the height direction of the enrichment device (21); the filtering assembly (5) is mounted on the detachable frame (3); and the return assembly (8) is connected to the displacement assembly (4).

2. The surface water heavy metal content detector according to claim 1, characterized in that: A water pipe (24) is provided at the bottom end of the enrichment device (21). The water pipe (24) extends into the filter assembly (5) and is connected to the fixed pipe assembly (7). The displacement assembly (4) comprises a guide rail (41) provided on the outside of the enrichment device (21) and a moving frame (42) in sliding contact with the outside of the enrichment device (21). A sliding block (43) is fixedly provided on one side of the moving frame (42) close to the enrichment device (21). The moving frame (42) slides along the guide rail (41) via the sliding block (43).

3. The surface water heavy metal content detector according to claim 2, characterized in that: The filter assembly (5) comprises a shell (51) fixedly mounted on the bottom end of the detachable frame plate (3), an inlet pipe (52) fixedly mounted on the top end of the shell (51), a detection cavity opened in the shell (51), and a filter device detachably mounted in the detection cavity.

4. The surface water heavy metal content detector according to claim 3, characterized in that: The detection chamber comprises a top chamber (53), a transition chamber (54) and a filter chamber (55) which are sequentially opened in the housing (51) from top to bottom; The filter device comprises a filter element (56) and a pop-up element (57) respectively installed in the filter cavity (55) and the transition cavity (54); the filter element (56) is fixed to the housing (51) via a locking element (58).

5. A surface water heavy metal content detector according to claim 4, characterized in that: The filter element (56) comprises a mounting frame (561) inserted into the filter cavity (55), a filter membrane (562) fixed in the mounting frame (561), and a sealing ring (563) fixed on the outside of the mounting frame (561); the outside of the mounting frame (561) is in contact with the transition cavity (54) via the sealing ring (563); The ejection member (57) comprises a telescopic ring (571) whose outer side is in sliding contact with the transition cavity (54) and a first spring (572) whose bottom end is fixedly connected to the telescopic ring (571); the top end of the first spring (572) is fixed to the transition cavity (54), and the bottom surface of the telescopic ring (571) is in abutment contact with the mounting frame (561); The sealing ring (563) has notches (564) on its left and right sides. The locking member (58) includes a mounting cavity (581) and a slide groove (582) which are arranged inside the housing (51). The mounting cavity (581) and the slide groove (582) are connected to each other. A locking block (583) is rotatably mounted in the mounting cavity (581). One end of the locking block (583) close to the filter cavity (55) passes through the notch (564) and is buckled with the sealing ring (563). An electromagnetic component (584) is provided, a telescopic block (585) is slidably installed in a slide groove (582), a magnetic block (586) for cooperating with the electromagnetic component (584) is fixedly provided at the top of the telescopic block (585), a push groove (587) is provided on the outer side of the telescopic block (585), the telescopic block (585) is in contact with the other end of the locking block (583) through the push groove (587), and a compression spring (588) is fixedly provided in the slide groove (582) for providing a telescopic elastic force for the telescopic block (585).

6. A surface water heavy metal content detector according to claim 5, characterized in that: The assembly and removal assembly (6) comprises an insert block assembly and a stress-bearing panel which are detachably connected to each other; The plug block assembly comprises an insert block (61) whose one side is fixed to a detachable frame plate (3), a lock cavity (62) provided on a side of the insert block (61) away from the detachable frame plate (3), a clamping block (63) and a magnetic plate (64) fixed in the lock cavity (62), and two symmetrically distributed inclined surfaces (65) are provided on the surface of the clamping block (63); The force-bearing panel comprises a force-bearing plate (66) fixedly connected to the moving frame (42) at the outer side, a slot (67) and a telescopic slot (68) provided in the force-bearing plate (66), a magnetic bead (69) being slidably installed in the telescopic slot (68), the magnetic bead (69) being fixedly connected to the inner end of the telescopic slot (68) through a second spring (610), a side of the magnetic bead (69) away from the slot (67) falling into the upward vertical projection range of the telescopic slot (68), the outer side of the plug block (61) being plugged into the slot (67), the surface of the magnetic bead (69) passing over the inclined surface (65) being plugged into the lock cavity (62), and the lock cavity (62) being magnetically connected to the magnetic bead (69) through the magnetic plate (64).

7. A surface water heavy metal content detector according to claim 6, characterized in that: The water pipe (24) is connected to the fixed pipe assembly (7) after being inserted into the inlet pipe (52). A sliding opening (31) is provided on the surface of the detachable frame plate (3), and a through groove (32) and a mounting groove (33) communicating with the sliding opening (31) are provided inside the detachable frame plate (3). The fixed pipe assembly (7) comprises a driving assembly (71) slidably arranged in the through groove (32), a clamping assembly (72) abutting against the outer side of the water pipe (24), and a loosening assembly (73) connected to the driving assembly (71).

8. The surface water heavy metal content detector according to claim 7, characterized in that: The driving assembly (71) comprises a push plate (711) whose outer side is in sliding contact with the through slot (32), a finger block (712) fixedly arranged on the outer side of the push plate (711), and a third spring (713) whose two ends are respectively fixed to the through slot (32) and the push plate (711); The clamping assembly (72) comprises a clamping arm (721) symmetrically arranged on the outside of the water pipe (24), an arc plate (722) fixedly arranged at one end of the clamping arm (721), a shaft column (723) whose bottom end is fixedly connected to the clamping arm (721), and a bracket (724) fixedly arranged in the top cavity (53); the outer side of the shaft column (723) is rotatably connected to the bracket (724); a first coil spring (725) for helping the shaft column (723) to rotate back to its original position is fixedly arranged on the bracket (724); and the inner side of the arc plate (722) is in contact with the water pipe (24); A first slope (714) is provided at the bottom end of the push plate (711); the other end of the clamp arm (721) slides into the mounting groove (33) and is rotatably mounted with a pulley (726); the tensioning assembly (73) comprises a driving block (731) arranged in the mounting groove (33), a second slope (732) symmetrically arranged on the outside of the driving block (731), and a pushing groove (733) penetrating the upper and lower surfaces of the driving block (731); the push plate (711) is in sliding contact with the pushing groove (733) through the first slope (714); the clamp arm (721) is in rotational contact with the second slope (732) through the pulley (726); the outside of the driving block (731) is fixed to the mounting groove (33) through a fourth spring (734); a support tube (735) is fixed on the outside of the driving block (731); the inside of the support tube (735) is slidably connected with the guide rod (736).

9. A surface water heavy metal content detector according to claim 8, characterized in that: The return assembly (8) comprises a recovery cylinder and a return button; The recovery cylinder comprises a protection cylinder (811) whose outer side is fixedly connected to the enrichment device (21), a coil (812) rotatably mounted inside the protection cylinder (811), two limit plates (813) fixedly mounted at intervals on the outer side of the coil (812), and a winding rope (814) wound on the coil (812), wherein the bottom end of the winding rope (814) slides out of the protection cylinder (811) and is fixed to the moving frame (42), and a second winding spring (815) for rotation return is mounted on the outer side of the coil (812); The return button comprises a pressing button (821) slidably mounted on the protective tube (811), a pressing tube (822) with one end of which is fixed to move into the protective tube (811) with the pressing button (821), and a fifth spring (823) with two ends respectively fixed to the pressing tube (822) and the protective tube (811). A tooth groove (816) is provided on the inner side of the rotating tube (812). A moving disk (824) is fixedly mounted on the outer wall of the pressing tube (822). A clamping frame (825) is rotatably mounted on the moving disk (824). The outer end of the clamping frame (825) is in contact with the tooth groove (816). A spring sheet (826) is mounted between the moving disk (824) and the clamping frame (825).

10. A surface water heavy metal content detector according to claim 9, characterized in that: A control module (34) is embedded in the detachable frame plate (3).

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