Water quality detection stirring device

Abstract

The utility model discloses a water quality detection stirring device belongs to water quality detection technical field, including base and support frame, the lower end of support frame is fixed on the one end of base, another end on the base is installed with stirring jar, the inside of stirring jar is placed with stirring rod, be provided with lifting mechanism on the support frame, one end of lifting mechanism is installed with drive motor through mounting plate, be provided with connecting mechanism between the upper end of stirring rod and the output of drive motor, through the setting of connecting mechanism, replaced the limitation that traditional stirring rod fixed connection is difficult to disassemble, and need not with special tool can complete the disassembly and installation of stirring rod fast, greatly shorten the time of cleaning, maintenance and replacement adaptation stirring rod, the operation convenience has been improved significantly, strengthen the versatility of stirring device simultaneously, can switch different type stirring rod fast to respond to diversification water quality detection scene, improve the detection efficiency effectively.

Description

Technical Field

[0001] This utility model relates to the field of water quality testing technology, specifically a water quality testing stirring device. Background Technology

[0002] Water quality testing refers to the process of monitoring and analyzing the quality of water bodies (including surface water, groundwater, drinking water, industrial wastewater, etc.) using physical, chemical, and biological methods to assess whether they meet specific standards and usage requirements. In the sample pretreatment stage, water samples for water quality testing may be uneven. Stirring devices can fully mix the various substances in the water sample.

[0003] According to announcement number CN222219428U, a water quality testing stirring device is proposed. This device includes a base plate, a lifting rod protective sleeve fixedly installed on the top of the base plate, a lifting plate movably installed on the right side of the lifting rod protective sleeve, a motor box fixedly installed on the top of the lifting plate, a rotating shaft at the bottom of the lifting plate, a stirring fan on the surface of the rotating shaft, a groove on the top surface of the base plate, a handle on the right side of the base plate, a power switch fixedly installed on the back of the base plate, and support legs fixedly installed at the bottom of the base plate. The bottom of the support legs is equipped with anti-slip pads. The lifting rod protective sleeve helps protect the lifespan of the lifting rod; the motor box helps protect the lifespan of the motor; the rotating shaft and stirring fan facilitate stirring of the water to be tested; and the support legs improve overall stability.

[0004] As described above, the mixing device is a key piece of equipment to ensure uniform mixing of water samples. Existing water quality testing mixing devices mostly adopt traditional integrated or fixed mixing rod designs. Although this can ensure the stability of the mixing process, when it is necessary to clean or maintain the mixing rod, or to replace it with a suitable mixing rod for testing different types of water samples, the existing fixed connection method makes disassembly and assembly operations cumbersome, requires special tools, and consumes a lot of time, which limits the versatility and flexibility of the mixing device. In order to solve the above-mentioned problems, an improved water quality testing mixing device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a water quality testing stirring device. The lifting mechanism can flexibly adjust the position of the stirring rod to adapt to the stirring needs of water samples of different volumes and depths. Through the setting of the connecting mechanism, it replaces the limitation of the traditional fixed connection of the stirring rod, which is difficult to disassemble and assemble. Moreover, the stirring rod can be quickly disassembled and installed without the need for special tools, which greatly shortens the time for cleaning, maintenance and replacement of the matching stirring rod, significantly improves the ease of operation, and enhances the versatility of the stirring device. It can quickly switch between different types of stirring rods to cope with diverse water quality testing scenarios, effectively improves the testing efficiency, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water quality testing stirring device, comprising a base and a support frame, wherein the lower end of the support frame is fixed to one end of the base, and a stirring tank is installed at the other end of the base, a stirring rod is placed inside the stirring tank, and a lifting mechanism is provided on the support frame, the lifting mechanism being used to drive the stirring rod to rise and fall.

[0007] One end of the lifting mechanism is equipped with a drive motor via a mounting plate. A connecting mechanism is provided between the upper end of the stirring rod and the output end of the drive motor. The connecting mechanism is used for assembling and disassembling the stirring rod.

[0008] Preferably, the connecting mechanism includes a connecting seat, which is fixed to the output end of the drive motor. A fixing block is fixedly connected to the top of the stirring rod. A slot is provided on the connecting seat to fit the fixing block. A connecting sleeve one is fixedly connected to the lower end of the fixing block and between it and the stirring rod. A connecting sleeve two is fixedly connected to the surface of the connecting seat. Both the surface of the connecting sleeve one and the connecting sleeve two are provided with threaded grooves. A fastening sleeve that mates with the connecting sleeve two is threadedly connected to the connecting sleeve one.

[0009] Preferably, the connecting mechanism further includes a limiting groove and a limiting block. The limiting block is fixed around the fixed block, and the limiting groove is formed around the inner wall of the empty groove. The fixed block is inserted into the empty groove, and the limiting block is engaged in the limiting groove.

[0010] Preferably, a protrusion is fixedly connected to the upper end of the first connecting sleeve, and a groove is provided at the lower end of the second connecting sleeve corresponding to the protrusion. At the point where the first connecting sleeve and the second connecting sleeve fit together, the protrusion is inserted into the groove.

[0011] Preferably, the lifting mechanism includes a stepper motor, which is mounted on the top of the support frame. The output shaft of the stepper motor is connected to a lead screw, and the lower end of the lead screw is rotatably connected to the support frame via a bearing. A threaded sleeve is threaded onto the surface of the lead screw, and a slider is fixedly connected to the surface of the threaded sleeve. A groove is formed on the surface of the support frame, and one end of the slider passes through the groove and is fixedly connected to one end of the mounting plate.

[0012] Preferably, the inner wall of the mixing tank is provided with guide plates distributed in a circular pattern, and the guide plates are arranged in a wave-like shape.

[0013] Preferably, a protective cover is placed at a symmetrical position on the top of the mixing tank, and a semi-circular protective sleeve is embedded at the center of each of the two protective covers facing each other, with the upper end of the stirring rod rotatably connected inside the protective sleeve.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model provides a water quality testing stirring device. The lifting mechanism can flexibly adjust the position of the stirring rod to adapt to the stirring needs of water samples of different volumes and depths. Through the setting of the connecting mechanism, it replaces the limitation of the traditional fixed connection of the stirring rod, which is difficult to disassemble and assemble. Moreover, the stirring rod can be quickly disassembled and installed without the need for special tools, which greatly shortens the time for cleaning, maintenance and replacement of the matching stirring rod, significantly improves the ease of operation, and enhances the versatility of the stirring device. It can quickly switch between different types of stirring rods to cope with diverse water quality testing scenarios, effectively improving the testing efficiency.

[0016] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the mixing tank structure of this utility model;

[0019] Figure 3 This is an exploded view of the connection mechanism structure of this utility model;

[0020] Figure 4 This is an exploded view of the connection mechanism structure of this utility model from below;

[0021] Figure 5 This is a partial cross-sectional view of the connection mechanism structure of this utility model.

[0022] The following are the labels in the diagram: 1. Base; 2. Support frame; 3. Mixing tank; 4. Mixing rod; 5. Lifting mechanism; 51. Stepper motor; 52. Lead screw; 53. Threaded sleeve; 54. Slider; 55. Slide groove; 6. Drive motor; 7. Mounting plate; 8. Connecting mechanism; 81. Connecting seat; 82. Fixing block; 83. Connecting sleeve one; 84. Connecting sleeve two; 85. Fastening screw sleeve; 86. Limiting groove; 87. Limiting block; 88. Protrusion; 89. Groove; 9. Guide plate; 10. Protective cover. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] This utility model provides, for example Figures 1-5 The water quality testing stirring device shown includes a base 1 and a support frame 2. The lower end of the support frame 2 is fixed to one end of the base 1, and a stirring tank 3 is installed on the other end of the base 1. A stirring rod 4 is placed inside the stirring tank 3. A lifting mechanism 5 is provided on the support frame 2. The lifting mechanism 5 is used to drive the stirring rod 4 to rise and fall. A drive motor 6 is installed on one end of the lifting mechanism 5 through a mounting plate 7. A connecting mechanism 8 is provided between the upper end of the stirring rod 4 and the output end of the drive motor 6. The connecting mechanism 8 is used for assembling and disassembling the stirring rod 4.

[0025] First, the base 1 serves as the supporting foundation, and the support frame 2 is fixed to one end of the base 1 to provide stable support for the entire mixing device. Then, the mixing tank 3 is installed at the other end of the base 1 to store and hold water quality test samples. Next, the lifting mechanism 5 is set on the support frame 2. The lifting mechanism 5 can drive the position of the stirring rod 4 and the drive motor 6 to be adjusted up and down through the mounting plate 7. At the same time, the drive motor 6 is connected to the stirring rod 4 through the connecting mechanism 8, thereby driving the stirring rod 4 to rotate inside the mixing tank 3. At the same time, the assembly of the connecting mechanism 8 realizes the convenient disassembly and assembly of the stirring rod 4.

[0026] By setting up the lifting mechanism 5 and the connecting mechanism 8, the needs of stirring water samples at different heights are met, and the problem of the stirring rod 4 of the traditional stirring device being difficult to disassemble and assemble is solved, thereby improving the flexibility of the stirring device and the convenience of its maintenance.

[0027] The connecting mechanism 8 includes a connecting seat 81, which is fixed to the output end of the drive motor 6. A fixing block 82 is fixedly connected to the top of the stirring rod 4. A slot is provided on the connecting seat 81 to fit the fixing block 82. A connecting sleeve 83 is fixedly connected to the lower end of the fixing block 82 and between it and the stirring rod 4. A connecting sleeve 84 is fixedly connected to the surface of the connecting seat 81. Both the first connecting sleeve 83 and the second connecting sleeve 84 have threaded grooves on their surfaces. A fastening sleeve 85 that mates with the second connecting sleeve 84 is threaded onto the first connecting sleeve 83. The fixing block 82 at the top of the stirring rod 4 is fixed to the output end of the drive motor 6 and can be inserted into the empty slot of the connecting seat 81. Then, the connecting sleeve 1 83 and the connecting sleeve 2 84 are respectively set on the fixing block 82 and the connecting seat 81, and both have threaded grooves on their surfaces. When the fixing block 82 is inserted into the empty slot, the connecting sleeve 1 83 and the connecting sleeve 2 84 fit tightly together. Then, the fastening screw 85 is screwed onto the connecting sleeve 1 83 and the connecting sleeve 2 84 to securely connect the stirring rod 4 to the drive motor 6. When disassembling, the fastening screw 85 is unscrewed to separate the stirring rod 4 from the output end of the drive motor 6.

[0028] The fit between the threaded groove and the fastening sleeve 85 embodies the threaded connection method, which allows for the installation and disassembly of the stirring rod 4 without the need for complicated tools, reducing the difficulty of operation and improving maintenance efficiency. At the same time, the threaded connection method ensures the stability of the connection between the stirring rod 4 and the drive motor 6 during the stirring process, thus guaranteeing the stirring effect.

[0029] The connecting mechanism 8 also includes a limiting groove 86 and a limiting block 87. The limiting block 87 is fixed around the fixed block 82, and the limiting groove 86 is formed around the inner wall of the empty groove. The fixed block 82 is inserted into the empty groove, and the limiting block 87 is engaged in the limiting groove 86. At the same time, the limiting block 87 is set around the fixed block 82, and the limiting groove 86 is formed around the inner wall of the empty groove of the connecting seat 81. When the fixed block 82 is inserted into the empty groove, the limiting block 87 will engage in the limiting groove 86, restricting the circumferential rotation of the fixed block 82 in the empty groove. This further ensures the stability of the stirring rod 4 after it is connected to the drive motor 6, prevents the stirring rod 4 from shifting or loosening during the stirring process, enhances the reliability of the connection between the stirring rod 4 and the drive motor 6, and avoids loosening of the connection due to vibration during the stirring process, thereby affecting the stirring effect or causing equipment failure.

[0030] The upper end of the first connecting sleeve 83 is fixedly connected to a protrusion 88, and the lower end of the second connecting sleeve 84 is provided with a groove 89 corresponding to the protrusion 88. At the point where the first connecting sleeve 83 and the second connecting sleeve 84 fit together, the protrusion 88 is inserted into the groove 89. Through the mutual cooperation between the protrusion 88 at the upper end of the first connecting sleeve 83 and the corresponding groove 89 at the lower end of the second connecting sleeve 84, when the first connecting sleeve 83 and the second connecting sleeve 84 are fitted together, the protrusion 88 is inserted into the groove 89, which further strengthens the positioning and fixing effect between the first connecting sleeve 83 and the second connecting sleeve 84, making the connection between the stirring rod 4 and the drive motor 6 tighter. The cooperation between the protrusion 88 and the groove 89 further improves the stability and coaxiality of the connection between the stirring rod 4 and the drive motor 6, reduces shaking during the stirring process, improves the uniformity of stirring, and has a simple structural design that does not increase the difficulty of disassembly and assembly, while taking into account both connection stability and ease of operation.

[0031] The lifting mechanism 5 includes a stepper motor 51, which is mounted on the top of the support frame 2. The output shaft of the stepper motor 51 is connected to a lead screw 52. The lower end of the lead screw 52 is rotatably connected to the support frame 2 via a bearing. A threaded sleeve 53 is threaded onto the surface of the lead screw 52. A slider 54 is fixedly connected to the surface of the threaded sleeve 53. A groove 55 is provided on the surface of the support frame 2. One end of the slider 54 passes through the groove 55 and is fixedly connected to one end of the mounting plate 7. When the stepper motor 51 is mounted on the top of the support frame 2 and started, it drives the lead screw 52 to rotate. When the lead screw 52 rotates, the threaded sleeve 53 on the surface of the lead screw 52 will move up and down linearly along the lead screw 52. The slider 54 on the surface of the threaded sleeve 53 cooperates with the groove 55 on the support frame 2 to restrict the rotation of the threaded sleeve 53, so that it can only move up and down along the direction of the groove 55. This drives the mounting plate 7 and the drive motor 6 and stirring rod 4 connected to the mounting plate 7 to lift and lower. The position of the stirring rod 4 can be flexibly adjusted according to different mixing tank 3 heights, water sample volumes, etc.

[0032] The inner wall of the mixing tank 3 is circumferentially distributed with guide plates 9, which are wavy in shape. When the stirring rod 4 stirs the water sample, the wavy guide plates 9 distributed circumferentially on the inner wall of the mixing tank 3 will change the direction of water flow, causing the water flow to generate turbulence and eddies in more directions. Under the action of the guide plates 9, the water quality test sample forms a complex flow path, which promotes the full mixing of substances in the water quality test sample, improves the mixing uniformity, and ensures that the water sample is fully mixed in the pretreatment stage of the water quality test sample.

[0033] A protective cover 10 is placed symmetrically on the top of the mixing tank 3. A semi-circular protective sleeve is embedded in the center of each of the two protective covers 10 facing each other. The upper end of the stirring rod 4 is rotatably connected inside the protective sleeve. The two protective covers 10 on the top of the mixing tank 3 can be closed on the mixing tank 3. The semi-circular protective sleeves in the center of the protective cover 10 can be spliced ​​into a complete circle to cover the upper end of the stirring rod 4, so that the stirring rod 4 can rotate inside the protective sleeve. The protective cover 10 can not only prevent water from splashing out during the stirring process, but also provide a certain degree of protection and support for the upper end of the stirring rod 4, reducing the shaking of the stirring rod 4 when rotating at high speed, and further improving the stirring stability and service life of the device.

[0034] In practical use, first place the base 1 stably, with the support frame 2 providing stable support for the device. Install the mixing tank 3 at the other end of the base 1 and inject the water sample to be tested. Start the stepper motor 51 installed on the top of the support frame 2. Through the lead screw 52, ​​drive the mounting plate 7, drive motor 6, and mixing rod 4 to rise and fall to a suitable mixing height. Then, align the fixing block 82 at the top of the mixing rod 4 with the slot of the connecting seat 81 at the output end of the drive motor 6 and insert it, so that the connecting sleeve 1 83 and the connecting sleeve 2 84 fit together, the protrusion 88 is embedded in the groove 89, and at the same time, the limiting block 87 is engaged. The positioning groove 86 achieves circumferential positioning. After tightening the fastening sleeve 85, the installation of the stirring rod 4 is quickly completed. The drive motor 6 is turned on, and the stirring rod 4 begins to stir the water sample. The corrugated guide plate 9 on the inner wall of the tank guides the water flow to form multi-directional turbulence, which accelerates the uniform mixing of the water sample. During the stirring process, the protective cover 10 and the protective sleeve can not only prevent the water sample from splashing out, but also provide support for the upper end of the stirring rod 4 and reduce shaking. After the stirring test is completed, the fastening sleeve 85 is unscrewed, and the stirring rod 4 can be easily disassembled for cleaning or replacement to meet the testing needs of different water samples. The whole operation process is efficient, stable and flexible.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

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