Water sample pretreatment device for environmental monitoring laboratory

Abstract

The utility model provides an environmental monitoring laboratory water sample pretreatment device which comprises a box body and a controller, the top of the box body is provided with an upward opening, the box body is internally provided with a moving mechanism, the moving mechanism is provided with a mounting mechanism, the mounting mechanism comprises a supporting plate, a first electric push rod and an arc-shaped clamping plate, and the supporting plate is oppositely arranged on the top surface of the moving mechanism; a fixing seat is arranged at the bottom in the box body and connected to the bottom of the moving mechanism through a second electric push rod, a shaking seat is rotationally arranged on the top surface of the fixing seat, a plurality of grooves are formed in the top surface of the shaking seat, a driving mechanism is arranged in the fixing seat, and the driving mechanism is in driving connection to the bottom of the shaking seat; limiting belts are oppositely arranged above the grooves, and the two ends of the limiting belts are connected to the clamping mechanisms correspondingly. The limiting belt is arranged to clamp the side face of a test tube containing a water sample, the shaking seat is driven by the driving mechanism to shake, the water sample is shaken up, and the test tube can be prevented from being separated from the groove to be damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to water quality detection technical field, especially relate to a kind of environmental monitoring laboratory water sample pretreatment device. BACKGROUND

[0002] The quality of water is directly related to the health of human and ecological system.Clean water is the source of life, and it is very important for drinking, agricultural irrigation, industrial production, fishing and entertainment.Environmental monitoring is to master environmental quality and change trend by monitoring environmental quality and pollutant emission, and to provide scientific basis for environmental protection and management.In environmental monitoring, laboratory water sample is the key object of analysis and test, and its accuracy and representativeness are directly related to the reliability of monitoring results.

[0003] Before laboratory water sample is analyzed and tested, it often needs a series of pretreatment operations.If reagent needs to be added, complete shaking is necessary for the accuracy of test results to improve the sensitivity and accuracy of analysis, and to eliminate interference factors.The structure and classification of water sample pretreatment device are various, and common ones include filter, extraction device, centrifuge and digestion device.These devices can be selected and combined according to different water sample characteristics and analysis requirements.For example, filter is mainly used to remove suspended solids and impurities in water sample, extraction device is used to extract specific components in water sample, centrifuge is used to separate different components in water sample, and digestion device is used to destroy organic matter in water sample, so that it is converted into inorganic matter which is easy to analyze.

[0004] In the prior art, the water sample pretreatment device of general environmental monitoring laboratory has the following problems:in water sample pretreatment process, some reagents need to be added to water sample, and complete shaking is needed to accurately analyze the results, however, in general water sample pretreatment device, clamping device needs to be set for each test tube to avoid test tube from falling out during shaking process, which leads to relatively complicated installation and removal of test tube, and reduces work efficiency. TECHNICAL SOLUTION

[0005] In view of the above problems, the utility model provides a kind of environmental monitoring laboratory water sample pretreatment device.

[0006] The technical scheme of the utility model is as follows:

[0007] The utility model provides an environmental monitoring laboratory water sample pretreatment device, including box and controller, the top of box is equipped with upward opening, be equipped with moving mechanism in the box, be provided with mounting mechanism on moving mechanism, the mounting mechanism includes support board, first electric push rod and arc clamping plate, support board opposite is located moving mechanism top surface, first electric push rod opposite is located support board side, and the telescopic end is connected with arc clamping plate, the bottom of box is equipped with fixed seat, the top surface of fixed seat is equipped with second electric push rod oppositely, and the telescopic end of second electric push rod is connected to the bottom of moving mechanism, the top surface of fixed seat is equipped with swing seat rotation, the top surface of swing seat is equipped with a plurality of grooves, be equipped with drive mechanism in the fixed seat, and drive mechanism drive is connected to the bottom of swing seat, the groove is opposite and is equipped with limiting band above, and the both ends of limiting band are connected to clamping mechanism respectively, and clamping mechanism opposite is located on the opposite inner wall of box, and the controller is located on the side of box and is electrically connected with moving mechanism, drive mechanism, clamping mechanism, first electric push rod, second electric push rod.

[0008] Preferably, the moving mechanism includes a lifting frame, a first lead screw, a first sliding rod, a first motor, a first moving block, a second lead screw, a second sliding rod, a second motor, and a second moving block. The first lead screw is rotatably arranged on the lifting frame, with one end rotatably connected to the lifting frame and the other end penetrating through the lifting frame and being drivenly connected to the first motor. The first motor is arranged on the side of the lifting frame. The first sliding rod is oppositely arranged on one side of the first lead screw. Two first moving blocks are respectively arranged on the first sliding rod and the first lead screw. The second lead screw and the second sliding rod are parallelly arranged on the opposite sides of the first moving block. One end of the second lead screw is rotatably connected to the first moving block, and the other end penetrates through the first moving block and is drivenly connected to the second motor. The second motor is arranged on the side of the first moving block. The second moving block is arranged on the second lead screw and the second sliding rod. The second moving block is provided with a through hole, and the support board is located on both sides of the through hole.

[0009] Preferably, the drive mechanism includes a third motor and a connecting rod. The fixed seat is provided with a receiving cavity I. The bottom surface of the swing seat is provided with a receiving cavity II. The third motor is arranged in the receiving cavity I, with the output shaft penetrating through the fixed seat and extending into the receiving cavity II. The connecting rod is fixedly arranged on the output shaft and rotatably connected to the swing seat at the other end.

[0010] Preferably, the clamping mechanism includes a mounting table, a double-shaft motor, a third lead screw, and a third moving block. The opposite side walls of the box are provided with a sliding groove. The mounting table is arranged at the bottom of the sliding groove. The double-shaft motor is arranged at the top of the mounting table, with the two side output shafts connected to the third lead screw. The screw rotation directions of the two third lead screws are opposite. The third moving block is oppositely arranged on the third lead screw. The both ends of the limiting band are respectively connected to the side surfaces of the third moving blocks.

[0011] Preferably, the limiting band is made of flexible rubber material.

[0012] Preferably, it further comprises support legs, and a plurality of the support legs are arranged at the bottom of the box body.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1、the two sides above the groove are provided with limiting bands, and the two ends of the limiting bands are connected to the clamping mechanism respectively, when the test tube with water sample is placed in the groove, the clamping mechanism drives the limiting bands to clamp the side of the test tube, the limiting bands adopt flexible material, the driving mechanism drives the shaking seat to shake, thereby driving the test tube to shake, the effect of shaking the water sample is achieved, the limiting bands can stabilize the upper part of the test tube, and the test tube can be prevented from being damaged by falling out of the groove;

[0015] 2、the mounting mechanism is arranged, first, the test tube is manually mounted into the mounting mechanism, the first electric push rod is started, the telescopic end of the first electric push rod is elongated and drives the arc-shaped clamping plates to move towards each other and clamp the test tube, then the second electric push rod is started, the telescopic end of the second electric push rod is shortened and drives the moving mechanism to descend, the moving mechanism can automatically mount the test tube into the groove in the top surface of the shaking seat, the operation process of the pre-treatment is simplified, the shaking of multiple water samples can be simultaneously performed, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the drawings needed to be used in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are only preferred embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for the ordinary skilled in the art.

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a sectional structure schematic view of the utility model;

[0019] Figure 3 It is Figure 2 the sectional view of A in the middle;

[0020] Figure 4 It is Figure 2 the enlarged view of B in the middle;

[0021] Figure 5 It is a top view structure schematic view of the accommodating groove one of the utility model;

[0022] Mark No. : 1, box; 2, opening; 3, lifting frame; 4, first screw rod; 5, first motor; 6, first moving block; 7, second screw rod; 8, first sliding rod; 9, second motor; 10, second moving block; 11, support plate; 12, first electric push rod; 13, arc-shaped clamping plate; 14, through hole; 15, second sliding rod; 16, second electric push rod; 17, sliding groove; 18, double-shaft motor; 19, third screw rod; 20, controller; 21, third moving block; 22, limiting belt; 23, mounting table; 24, shaking seat; 25, groove; 26, accommodating groove I; 27, connecting rod; 28, third motor; 29, accommodating groove II; 30, supporting leg; 31, fixed seat. DETAILED DESCRIPTION

[0023] In order to better understand the technical content of the utility model, a specific embodiment is provided below, and the utility model is further explained in combination with the drawings.

[0024] Referring to Figures 1 to 5 The utility model provides a kind of environmental monitoring laboratory water sample pretreatment device, including box 1 and controller 20, the box 1 top is equipped with upward opening 2, the box 1 is equipped with moving mechanism, the moving mechanism is provided with mounting mechanism, the mounting mechanism includes support plate 11, first electric push rod 12 and arc-shaped clamping plate 13, the support plate 11 is oppositely located moving mechanism top surface, the first electric push rod 12 is oppositely located support plate 11 side, and its telescopic end is connected with arc-shaped clamping plate 13, the box 1 inner bottom is equipped with fixed seat 31, the fixed seat 31 top surface is oppositely equipped with second electric push rod 16, and the telescopic end of the second electric push rod 16 is connected to moving mechanism bottom, the fixed seat 31 top surface is rotatably equipped with shaking seat 24, the shaking seat 24 top surface is equipped with multiple grooves 25, the fixed seat 31 is equipped with drive mechanism, the drive mechanism is driven to the bottom of shaking seat 24, the groove 25 upper side is oppositely equipped with limiting belt 22, the limiting belt 22 two ends are connected to clamping mechanism respectively, and the clamping mechanism is oppositely equipped on the opposite inner wall of box 1, the controller 20 is equipped on the side surface of box 1 and is electrically connected with moving mechanism, drive mechanism, clamping mechanism, first electric push rod 12, second electric push rod 16, and controller 20 adopts model STM32-L0 low-power microprocessor.

[0025] When the water sample pretreatment device works, first, seal the test tube containing the water sample and place it on the mounting mechanism, start the first electric push rod 12, the telescopic end of the first electric push rod 12 shortens to drive the arc-shaped clamping plate 13 to clamp the test tube, then start the moving mechanism to move the mounting mechanism to the preset position, so that the test tube is located directly above the groove 25 on the top surface of the shaking seat 24, then start the second electric push rod 16, the telescopic end of the second electric push rod 16 shortens to drive the mounting seat 23 to descend, thereby inserting the test tube into the corresponding groove 25, then start the clamping mechanism, the clamping mechanism drives the two limiting belts 22 to move close to each other to clamp the test tube, then start the driving mechanism, the driving mechanism drives the shaking seat 24 to shake continuously to make the test tube in the groove 25 shake continuously, the upper part of the test tube is limited by the limiting belt 22, so that the upper part of the test tube vibrates with a certain amplitude, avoiding the shaking of the shaking seat 24 to make the test tube fall out of the groove 25 and be damaged. In addition, the top surface of the shaking seat 24 is provided with a plurality of grooves 25, which can simultaneously pretreat multiple water samples, improving the efficiency of water sample pretreatment.

[0026] Preferably, the moving mechanism comprises a lifting frame 3, a first lead screw 4, a first sliding rod 8, a first motor 5, a first moving block 6, a second lead screw 7, a second sliding rod 15, a second motor 9, and a second moving block 10. The first lead screw 4 is rotatably arranged on the lifting frame 3, one end of which is rotatably connected to the lifting frame 3, and the other end penetrates through the lifting frame 3 and is drivenly connected to the first motor 5. The first motor 5 is arranged on the side surface of the lifting frame 3. The first sliding rod 8 is oppositely arranged on one side of the first lead screw 4. Two first moving blocks 6 are respectively arranged on the first sliding rod 8 and the first lead screw 4. The second lead screw 7 and the second sliding rod 15 are parallelly arranged on the opposite side surfaces of the first moving block 6. One end of the second lead screw 7 is rotatably connected to the first moving block 6, and the other end penetrates through the first moving block 6 and is drivenly connected to the second motor 9. The second motor 9 is arranged on the side surface of the first moving block 6. The second moving block 10 is arranged on the second lead screw 7 and the second sliding rod 15. The second moving block 10 is provided with a through hole 14, and the supporting plate 11 is located on both sides of the through hole 14.

[0027] The moving mechanism can move the water sample test tube fixed on the mounting mechanism to any position on the plane of the lifting frame 3. When the moving mechanism works, start the first motor 5, the first motor 5 rotates to drive the first lead screw 4 to rotate, the first moving block 6 moves along the axis direction of the first lead screw 4 and the first sliding rod 8, and at the same time, start the second motor 9, the second motor 9 rotates to drive the second lead screw 7 to rotate, and the second moving block 10 moves along the axis direction of the second lead screw 7 and the second sliding rod 15, so that the second moving block 10 can move to any position in the longitudinal and transverse directions.

[0028] Preferably, the driving mechanism comprises a third motor 28 and a connecting rod 27, the fixed seat 31 is internally provided with a receiving cavity I, the bottom surface of the swinging seat 24 is provided with a receiving cavity II, the third motor 28 is arranged in the receiving cavity I, the output shaft thereof penetrates through the fixed seat 31 and extends into the receiving cavity II, and the connecting rod 27 is fixedly arranged on the output shaft and rotationally connected to the other end of the swinging seat 24.

[0029] The driving mechanism is used for driving the swinging seat 24 to rotate. When the third motor 28 is started, the output shaft thereof starts to rotate and drives the swinging seat 24 to rotate through the connecting rod 27, so as to drive the water sample in the test tube to swing, so that the water sample is more uniform, thereby improving the efficiency and effect of water sample treatment.

[0030] Preferably, the clamping mechanism comprises a double-shaft motor 18, a third screw rod 19 and a third moving block 21, the box body 1 is provided with a sliding groove 17 on the opposite side walls, the mounting table 23 is arranged at the bottom of the sliding groove 17, the double-shaft motor 18 is arranged at the top of the mounting table 23, the output shafts on the two sides thereof are connected to the third screw rods 19, the third screw rods 19 on the two sides are oppositely threaded, the third moving blocks 21 are oppositely arranged on the third screw rods 19, and the limiting belts 22 are respectively connected to the side surfaces of the third moving blocks 21 at the two ends.

[0031] The clamping mechanism is used for clamping the test tube with the water sample arranged therein by moving the two limiting belts 22 close to each other. When the double-shaft motor 18 is started, the two output shafts thereof rotate at the same time and drive the third screw rods 19 on the two sides to rotate. Since the screw rods on the two sides are oppositely threaded, the third moving blocks 21 move along the screw rod axial direction at the same time and in opposite directions. With the movement of the third moving blocks 21, the limiting belts 22 gradually move close to each other, thereby achieving clamping or releasing of the water sample container.

[0032] Preferably, the limiting belts 22 are made of flexible rubber material.

[0033] The limiting belts 22 are used for fixing the test tube with the water sample arranged therein, so as to prevent the test tube from deviating or toppling due to vibration during pretreatment. The flexible rubber material can effectively realize this function due to its good adhesion and friction.

[0034] Preferably, the box body 1 is further provided with supporting legs 30.

[0035] The supporting legs 30 are used for supporting the weight of the box body 1, so as to ensure that the box body 1 is stably placed on the workbench or the ground, and provide a certain space for operation and maintenance of the equipment.

[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A water sample pretreatment device for an environmental monitoring laboratory, characterized in that, The device includes a housing and a controller. The housing has an upward-facing opening at the top. A moving mechanism is located inside the housing, and an installation mechanism is mounted on the moving mechanism. The installation mechanism includes a support plate, a first electric actuator, and an arc-shaped clamping plate. The support plate is positioned opposite the top surface of the moving mechanism, and the first electric actuator is positioned opposite the side surface of the support plate, with its telescopic end connected to the arc-shaped clamping plate. A fixed seat is located at the bottom of the housing. A second electric actuator is positioned opposite the top surface of the fixed seat, with its telescopic end connected to the bottom of the moving mechanism. A rotatable rocking seat is rotatably mounted on the top surface of the fixed seat, and the rocking seat has multiple grooves on its top surface. A driving mechanism is located inside the fixed seat and drives the bottom of the rocking seat. A limiting band is positioned opposite each groove, with both ends of the limiting band connected to a clamping mechanism. The clamping mechanism is positioned opposite each other on the inner walls of the housing. The controller is located on the side of the housing and is electrically connected to the moving mechanism, the driving mechanism, the clamping mechanism, the first electric actuator, and the second electric actuator.

2. The water sample pretreatment device for an environmental monitoring laboratory according to claim 1, characterized in that, The moving mechanism includes a lifting frame, a first lead screw, a first slide rod, a first motor, a first moving block, a second lead screw, a second slide rod, a second motor, and a second moving block. The first lead screw is rotatably mounted on the lifting frame, with one end rotatably connected to the lifting frame and the other end passing through the lifting frame and driving the first motor. The first motor is located on the side of the lifting frame. The first slide rod is located opposite to the first lead screw on one side. Two first moving blocks are respectively located on the first slide rod and the first lead screw. The second lead screw and the second slide rod are parallel to each other on opposite sides of the first moving block. One end of the second lead screw is rotatably connected to the first moving block, and the other end passes through the first moving block and drives the second motor. The second motor is located on the side of the first moving block. The second moving block is located on the second lead screw and the second slide rod. The second moving block has a through hole, and the support plate is located on both sides of the through hole.

3. The water sample pretreatment device for an environmental monitoring laboratory according to claim 1, characterized in that, The driving mechanism includes a third motor and a connecting rod. The fixed seat has a first receiving cavity, and the bottom surface of the rocking seat has a second receiving cavity. The third motor is located in the first receiving cavity, and its output shaft passes through the fixed seat and extends into the second receiving cavity. The connecting rod is fixed on the output shaft, and its other end is rotatably connected to the rocking seat.

4. The water sample pretreatment device for an environmental monitoring laboratory according to claim 1, characterized in that, The clamping mechanism includes a mounting platform, a dual-axis motor, a third lead screw, and a third moving block. The housing has a sliding groove on its opposite side wall. The mounting platform is located at the bottom of the sliding groove. The dual-axis motor is located at the top of the mounting platform. Its two output shafts are connected to the third lead screw. The three lead screws on both sides rotate in opposite directions. The third moving blocks are arranged opposite to each other on the third lead screw. The two ends of the limiting band are respectively connected to the sides of the third moving blocks.

5. The water sample pretreatment device for an environmental monitoring laboratory according to claim 1, characterized in that, The limiting band is made of flexible rubber.

6. The water sample pretreatment device for an environmental monitoring laboratory according to claim 1, characterized in that, It also includes support legs, with multiple support legs located at the bottom of the housing.

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