A stirring device used in water quality detector

Abstract

The present invention belongs to the technical field of water quality detection, and discloses a stirring device applied to a water quality detector, including a magnetic stirring device, a beaker body placed on the top of the magnetic stirring device, a discharge assembly sleeved on the bottom of the beaker body, and a sealing assembly connected to the bottom of the discharge assembly. The present invention pulls the rotor downward by the magnetic force of the magnetic stirring device, rotates and moves the discharge assembly downward, seals the bottom of the beaker body, and can detect the water sample through the beaker body. After the water sample detection is completed, the connecting rod, the rotor, the pressure assembly and the discharge assembly are pulled upward. At this time, the transmission tube rotates in the opposite direction and moves upward through the thrust of the second spring, and the rubber tube is in a connected state, and the clamping block is separated from the clamping of the rubber tube, and the discharge tube is connected with the beaker body and the inside of the rubber tube, and the water sample in the beaker body can be discharged through the rubber tube, thereby avoiding residual water sample in the beaker body.

Description

Technical Field

[0001] The invention belongs to the technical field of water quality detection, and in particular is a stirring device applied to a water quality detector. Background Art

[0002] Water is the source of life. Human beings cannot live without water in their daily life and production activities. The quality of drinking water is closely related to human health. At present, water quality testing mostly uses water quality testers, which inject water samples into a beaker and stir it evenly before testing the components. Beaker refers to a common laboratory glassware made of glass, plastic, or heat-resistant glass. After the existing water samples are tested in the beaker, they are discharged from the side of the stirring cup. This structure makes it impossible to completely empty the water samples, and there are water sample residues at the bottom of the cup. Therefore, a stirring device applied to a water quality tester is proposed. Summary of the invention

[0003] In order to solve the problems raised in the above-mentioned background technology, the present invention provides a stirring device applied to a water quality detector. The existing water sample is discharged from the side of the stirring cup after the test in the beaker. This structure makes it impossible to completely empty the water sample, and there is a problem of water sample residue at the bottom of the cup.

[0004] To achieve the above object, the present invention provides the following technical solution: a stirring device applied to a water quality detector, comprising a magnetic stirring device, a beaker body placed on the top of the magnetic stirring device, a discharge assembly sleeved on the bottom of the beaker body, and a sealing assembly connected to the bottom of the discharge assembly;

[0005] A pressure assembly sleeved on the top of the discharge assembly, a rotor placed on the beaker body and clamped on the top of the pressure assembly, and a stirring assembly installed on the rotor;

[0006] The discharge assembly includes a transmission pipe penetrating the bottom of the beaker body, an arc-shaped discharge pipe disposed outside the transmission pipe, and a sliding block arranged in an annular array at the bottom of the beaker body;

[0007] The sealing assembly includes a fixing frame installed at the bottom of the beaker body, a rubber tube connected between the transmission tube and the fixing frame, a docking plate sleeved on the outside of the transmission tube, and a second spring connected between the fixing frame and the docking plate;

[0008] A second transmission rod with one end hinged to the bottom of the docking plate and a third transmission rod with one end hinged to the inside of the fixing frame, and a clamping block hinged to the other ends of the second transmission rod and the other ends of the third transmission rod and in contact with the outside of the rubber tube.

[0009] Preferably, a guide groove is provided in an annular array on the outside of the transmission tube, and the sliding block slides inside the guide groove.

[0010] Preferably, the transmission tube moves downward by sliding the sliding block in the guide groove, so that the transmission tube rotates and moves downward, and the discharge tube is separated from the inside of the beaker body.

[0011] Preferably, the rotor is placed in the beaker body and clamped on the top of the pressure assembly. The rotor is pulled by the magnetic force of the magnetic stirring device, and the pressure assembly and the discharge assembly are pushed downward. During the downward movement and rotation of the transmission tube, the upper end of the rubber tube is driven to rotate, so that the middle part of the rubber tube is twisted and sealed to the bottom of the beaker body.

[0012] Preferably, during the downward movement of the transmission tube, the second transmission rod and the third transmission rod are pushed to rotate by the docking plate, thereby synchronously pushing the two clamping blocks to move toward the middle to clamp the middle of the rubber tube.

[0013] Preferably, the pressure-applying assembly comprises a fixing ring sleeved on the top of the transmission tube, a third spring installed inside the fixing ring, and an extrusion block connected to one end of the third spring.

[0014] Preferably, the magnetic stirring device is powered to drive the rotor and the pressure assembly to rotate, and the extrusion block is pushed to contact the outside of the transmission tube through the third spring, so that the rotational force is continuously applied to the transmission tube through the rotation of the fixing ring, the third spring and the extrusion block.

[0015] Preferably, the stirring assembly comprises a stirring rod fixedly mounted on the top of the rotor, a slide groove is provided inside the stirring rod, a slider slides inside the slide groove, and a first spring is connected between the slider and the stirring rod;

[0016] The top of the sliding block is connected with a connecting rod.

[0017] Preferably, the stirring assembly further comprises a first transmission rod hinged to the side of the sliding block, a connecting ball fixed inside the first transmission rod, and a toggle plate sleeved on the outside of the connecting ball.

[0018] Preferably, the rotation of the rotor drives the stirring rod to rotate. Under the action of centrifugal force, the slider drives the first transmission rod to slide downward to compress the first spring, thereby increasing the distance between the toggle plate and the stirring rod. A wake is generated by the rotating tail of the stirring rod, and under the action of the wake, the toggle plate is driven to swing with the connecting ball as the central axis.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention uses the magnetic force of the magnetic stirring device to pull the rotor downward, and rotates and moves the discharge assembly downward, so that the middle part of the rubber tube is twisted, and at the same time, the transmission tube pushes the second transmission rod, the third transmission rod and the clamping block to squeeze and fix the middle part of the rubber tube, and the bottom of the beaker body is sealed, so that the water sample can be detected through the beaker body. After the water sample detection is completed, the connecting rod, the rotor, the pressure assembly and the discharge assembly are pulled upward. At this time, the transmission tube is reversely rotated and moved upward by the thrust of the second spring, and the rubber tube is in a connected state, and the clamping block is separated from the clamping of the rubber tube, and the discharge tube is connected with the beaker body and the inside of the rubber tube, and the water sample in the beaker body can be discharged through the rubber tube, thereby avoiding residual water sample in the beaker body.

[0021] The present invention seals the bottom of a beaker main body, places a water sample in the beaker main body, and starts a magnetic stirring device to drive a rotor and a stirring rod to rotate by magnetic force to stir the water sample. During the rotation of the stirring rod, a slider slides downward under the action of centrifugal force and compresses a first spring, thereby increasing the distance between a paddle plate and the stirring rod. Simultaneously, during the rotation of the stirring rod, a wake flow is generated at the tail of the stirring rod, and under the action of the wake flow, the paddle plate is driven to swing with the connecting ball as the central axis, thereby stirring the water sample in the beaker main body through the swing of the paddle plate, thereby improving the mixing effect of the water sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall appearance structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal plane structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0025] Figure 4 It is a schematic diagram of the side cross-sectional structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0027] Figure 6 This is a schematic diagram of the coordination structure of the stirring assembly, the rotor, the discharge assembly and the sealing assembly of the present invention;

[0028] Figure 7 This is a schematic diagram of the appearance structure of the stirring assembly of the present invention;

[0029] Figure 8 This is a schematic diagram of the explosion structure of the stirring assembly of the present invention;

[0030] Fig. 9It is a schematic diagram of the explosion structure of the toggle plate, the connecting ball and the first transmission rod of the present invention.

[0031] In the figure: 100, magnetic stirring device; 200, beaker body; 300, stirring assembly; 301, stirring rod; 302, slider; 303, first spring; 304, connecting rod; 311, first transmission rod; 312, toggle plate; 313, connecting ball; 400, rotor; 500, discharge assembly; 501, transmission pipe; 502, discharge pipe; 503, sliding block; 600, sealing assembly; 601, fixing frame; 602, second spring; 603, rubber tube; 604, clamping block; 605, docking plate; 606, second transmission rod; 607, third transmission rod; 700, pressure assembly; 701, fixing ring; 702, third spring; 703, extrusion block. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0033] like Figures 1 to 9 As shown, the present invention provides a stirring device for use in a water quality detector, comprising a magnetic stirring device 100, a beaker body 200 placed on the top of the magnetic stirring device 100, a discharge assembly 500 sleeved on the bottom of the beaker body 200, and a sealing assembly 600 connected to the bottom of the discharge assembly 500;

[0034] A pressure assembly 700 sleeved on the top of the discharge assembly 500, a rotor 400 placed on the beaker body 200 and clamped on the top of the pressure assembly 700, and a stirring assembly 300 installed on the rotor 400;

[0035] The discharge assembly 500 includes a transmission pipe 501 penetrating the bottom of the beaker body 200, an arc-shaped discharge pipe 502 disposed outside the transmission pipe 501, and a sliding block 503 arranged in an annular array at the bottom of the beaker body 200;

[0036] The sealing assembly 600 includes a fixing frame 601 installed at the bottom of the beaker body 200, a rubber tube 603 connected between the transmission tube 501 and the fixing frame 601, a docking plate 605 sleeved on the outside of the transmission tube 501, and a second spring 602 connected between the fixing frame 601 and the docking plate 605;

[0037] A second transmission rod 606 having one end hinged to the bottom of the docking plate 605 and a third transmission rod 607 having one end hinged to the inside of the fixing frame 601, a clamping block 604 hinged to the other end of the second transmission rod 606 and the other end of the third transmission rod 607 and in contact with the outside of the rubber tube 603;

[0038] The transmission tube 501 has a guide groove formed in an annular array on its exterior, and the sliding block 503 slides inside the guide groove;

[0039] The transmission tube 501 moves downward through the sliding block 503 sliding in the guide groove, so that the transmission tube 501 rotates and moves downward, and at the same time, the discharge tube 502 is separated from the inside of the beaker body 200;

[0040] During the downward movement of the transmission tube 501, the second transmission rod 606 and the third transmission rod 607 are driven to rotate by the docking plate 605, thereby synchronously driving the two clamping blocks 604 to move toward the middle to clamp the middle of the rubber tube 603;

[0041] The rotor 400 is placed in the beaker body 200 and clamped on the top of the pressure assembly 700. The magnetic force of the magnetic stirring device 100 pulls the rotor 400 and pushes the pressure assembly 700 and the discharge assembly 500 downward. During the downward movement and rotation of the transmission tube 501, the upper end of the rubber tube 603 is driven to rotate, so that the middle part of the rubber tube 603 is twisted to seal the bottom of the beaker body 200.

[0042] The rotor 400 is placed inside the beaker body 200 and is clamped on the top of the pressure assembly 700. The magnetic stirring device 100 is powered on to generate magnetic force. The magnetic force of the magnetic stirring device 100 pulls the rotor 400 downward. During the downward movement of the rotor 400, the pressure assembly 700 and the transmission tube 501 are pushed downward. During the downward movement of the transmission tube 501, the sliding block 503 moves along the arc groove outside the transmission tube 501 to make the transmission tube 501 rotate and move downward. During the downward rotation of the transmission tube 501, the upper end of the rubber tube 603 is driven to rotate, so that the middle part of the rubber tube 603 is twisted. , and at the same time, the bottom of the pressure assembly 700 contacts the bottom of the beaker body 200, thereby sealing the bottom of the beaker body 200. During the downward movement of the transmission tube 501, the docking plate 605 is driven to compress the second spring 602. At the same time, the docking plate 605 pushes the second transmission rod 606 and the third transmission rod 607 to make the two clamping blocks 604 move synchronously toward the middle, and clamp the middle of the rubber tube 603, thereby improving the sealing effect of the rubber tube 603. After the bottom of the beaker body 200 is sealed, the water sample is injected into the beaker body 200 for testing;

[0043] After the water sample detection is completed, the stirring assembly 300, the rotor 400, the pressure assembly 700 and the discharge assembly 500 are pulled upward. At this time, the transmission tube 501 is pushed by the second spring 602 to make the transmission tube 501 rotate in the opposite direction and move upward. The rubber tube 603 is in a connected state, and the clamping block 604 is released from the clamping of the rubber tube 603. The discharge tube 502 is connected with the beaker body 200 and the rubber tube 603. The water sample in the beaker body 200 can be discharged through the rubber tube 603, thereby avoiding residual water sample in the beaker body 200.

[0044] like Figure 2 , Figure 3 , Figure 6 As shown, the pressure-applying assembly 700 includes a fixing ring 701 sleeved on the top of the transmission tube 501 , a third spring 702 installed inside the fixing ring 701 , and an extrusion block 703 connected to one end of the third spring 702 .

[0045] The magnetic stirring device 100 is powered on to drive the rotor 400 and the pressure assembly 700 to rotate, and the third spring 702 pushes the extrusion block 703 to contact the outside of the transmission tube 501, so that the fixed ring 701, the third spring 702 and the extrusion block 703 rotate to continuously apply a rotational force to the transmission tube 501.

[0046] By sealing the bottom of the beaker body 200, water can be injected into the beaker body 200, and the weight of the water pushes the fixing ring 701 to seal the bottom of the beaker body 200. At the same time, the third spring 702 pushes the extrusion block 703 to contact the outside of the transmission tube 501. During the rotation of the fixing ring 701, the third spring 702 and the extrusion block 703 driven by the rotor 400, a rotational force is continuously applied to the transmission tube 501, thereby preventing the transmission tube 501 from rotating in the opposite direction and moving upward.

[0047] like Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown, the stirring assembly 300 includes a stirring rod 301 fixed to the top of the rotor 400, a sliding groove is provided inside the stirring rod 301, a slider 302 slides inside the sliding groove, and a first spring 303 is connected between the slider 302 and the stirring rod 301;

[0048] The top of the slider 302 is connected with a connecting rod 304;

[0049] The stirring assembly 300 further includes a first transmission rod 311 hinged to the side of the slider 302, a connecting ball 313 fixed inside the first transmission rod 311, and a toggle plate 312 sleeved outside the connecting ball 313;

[0050] The rotation of the rotor 400 drives the stirring rod 301 to rotate. Under the action of centrifugal force, the slider 302 drives the first transmission rod 311 to slide downward to compress the first spring 303, thereby increasing the distance between the toggle plate 312 and the stirring rod 301. The tail of the stirring rod 301 rotates to generate a wake, and under the action of the wake, the toggle plate 312 is driven to swing around the connecting ball 313 as the central axis.

[0051] The rotor 400 rotates to drive the stirring rod 301 to rotate and stir the water sample in the beaker body 200. At the same time, during the rotation of the stirring rod 301, the slider 302 slides downward under the action of centrifugal force and compresses the first spring 303, so that the distance between the toggle plate 312 and the stirring rod 301 gradually increases. During the rotation of the stirring rod 301, a wake flow will be generated at the tail of the stirring rod 301. Under the action of the wake flow, the toggle plate 312 is driven to swing with the connecting ball 313 as the central axis, so that the water sample in the beaker body 200 is stirred by the swing of the toggle plate 312, thereby improving the effect of water quality detection.

[0052] The working principle and use process of the present invention:

[0053] When the water quality needs to be tested, the rotor 400 is first placed inside the beaker body 200 and snapped onto the top of the pressure assembly 700. The magnetic stirring device 100 is powered on to generate magnetic force. The magnetic force of the magnetic stirring device 100 pulls the rotor 400 downward. During the downward movement of the rotor 400, the pressure assembly 700 and the transmission tube 501 are pushed downward. During the downward movement of the transmission tube 501, the sliding block 503 moves along the outer arc groove of the transmission tube 501 to rotate and move downward. During the downward movement of the transmission tube 501, the rubber The upper end of the tube 603 rotates, so that the middle part of the rubber tube 603 is twisted, and at the same time, the bottom of the pressure assembly 700 contacts the bottom of the beaker body 200, so as to seal the bottom of the beaker body 200. During the downward movement of the transmission tube 501, the docking plate 605 is driven to compress the second spring 602. At the same time, the second transmission rod 606 and the third transmission rod 607 are pushed by the docking plate 605 to make the two clamping blocks 604 move synchronously to the middle part, and clamp the middle part of the rubber tube 603, so as to improve the sealing effect of the rubber tube 603.

[0054] After the bottom of the beaker body 200 is sealed, the water sample can be placed in the beaker body 200, and the magnetic stirring device 100 is started to drive the rotor 400 and the stirring rod 301 to rotate by magnetic force to stir the water sample. During the rotation of the stirring rod 301, the slider 302 slides downward under the action of centrifugal force and compresses the first spring 303, thereby increasing the distance between the toggle plate 312 and the stirring rod 301. At the same time, during the rotation of the stirring rod 301, a wake flow will be generated at the tail of the stirring rod 301, and under the action of the wake flow, the toggle plate 312 is driven to swing with the connecting ball 313 as the central axis, so that the water sample in the beaker body 200 is stirred by the swing of the toggle plate 312;

[0055] At the same time, the rotor 400 drives the fixed ring 701 to rotate during the rotation process, and pushes the extrusion block 703 to contact the outside of the transmission tube 501 through the third spring 702, so that the transmission tube 501 is continuously subjected to a rotation force during the rotation of the fixed ring 701, thereby preventing the transmission tube 501 from rotating in the opposite direction and moving upward;

[0056] After the water sample detection is completed, the beaker body 200 is removed from the top of the magnetic stirring device 100, the stirring assembly 300 is reset, and the operator pulls up the connecting rod 304, the rotor 400, the pressure assembly 700 and the discharge assembly 500. At this time, the transmission tube 501 is pushed by the second spring 602 to make the transmission tube 501 rotate in the opposite direction and move upward, the rubber tube 603 is in a connected state, and the clamping block 604 is disengaged from the clamping of the rubber tube 603, and the discharge tube 502 is connected to the beaker body 200 and the rubber tube 603, and the water sample in the beaker body 200 can be discharged through the rubber tube 603.

[0057] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stirring device for use in a water quality detector, comprising a magnetic stirring device (100), a beaker body (200) placed on top of the magnetic stirring device (100), characterized in that: It also includes a discharge assembly (500) sleeved on the bottom of the beaker body (200), and a sealing assembly (600) connected to the bottom of the discharge assembly (500); A pressure-applying assembly (700) sleeved on the top of the discharge assembly (500), a rotor (400) placed on the beaker body (200) and clamped on the top of the pressure-applying assembly (700), and a stirring assembly (300) mounted on the rotor (400); The discharge assembly (500) comprises a transmission pipe (501) penetrating the bottom of the beaker body (200), an arc-shaped discharge pipe (502) disposed outside the transmission pipe (501), and sliding blocks (503) arranged in an annular array at the bottom of the beaker body (200); The sealing assembly (600) comprises a fixing frame (601) mounted on the bottom of the beaker body (200), a rubber tube (603) connected between the transmission tube (501) and the fixing frame (601), a docking plate (605) sleeved on the outside of the transmission tube (501), and a second spring (602) connected between the fixing frame (601) and the docking plate (605); A second transmission rod (606) having one end hinged to the bottom of the docking plate (605) and a third transmission rod (607) having one end hinged to the inside of the fixing frame (601), and a clamping block (604) hinged to the other ends of the second transmission rod (606) and the other ends of the third transmission rod (607) and in contact with the outside of the rubber tube (603); The transmission tube (501) is provided with guide grooves in an annular array on the outside, and the sliding blocks (503) slide inside the guide grooves; The transmission tube (501) moves downward and slides in the guide groove through the sliding block (503), so that the transmission tube (501) rotates and moves downward, and at the same time, the discharge tube (502) is separated from the inside of the beaker body (200); The rotor (400) is placed in the beaker body (200) and is clamped on the top of the pressure assembly (700). The magnetic force of the magnetic stirring device (100) pulls the rotor (400) and pushes the pressure assembly (700) and the discharge assembly (500) downward. The transmission tube (501) moves downward and rotates, driving the upper end of the rubber tube (603) to rotate, so that the middle part of the rubber tube (603) is twisted in a shape to seal the bottom of the beaker body (200). When the transmission tube (501) moves downward, the docking plate (605) drives the second transmission rod (606) and the third transmission rod (607) to rotate, thereby synchronously driving the two clamping blocks (604) to move toward the middle to clamp the middle of the rubber tube (603); The pressure-applying assembly (700) comprises a fixing ring (701) sleeved on the top of the transmission tube (501), a third spring (702) installed inside the fixing ring (701), and an extrusion block (703) connected to one end of the third spring (702); The magnetic stirring device (100) is energized to drive the rotor (400) and the pressure assembly (700) to rotate, and the extrusion block (703) is pushed to contact the outside of the transmission tube (501) through the third spring (702), so that the fixed ring (701), the third spring (702) and the extrusion block (703) rotate to continuously apply a rotational force to the transmission tube (501).

2. The stirring device for use in a water quality detector according to claim 1, characterized in that: The stirring assembly (300) comprises a stirring rod (301) fixedly mounted on the top of the rotor (400), a sliding groove is provided inside the stirring rod (301), a sliding block (302) slides inside the sliding groove, and a first spring (303) is connected between the sliding block (302) and the stirring rod (301); The top of the sliding block (302) is connected to a connecting rod (304).

3. The stirring device for use in a water quality detector according to claim 2, characterized in that: The stirring assembly (300) further comprises a first transmission rod (311) hinged to the side of the sliding block (302), a connecting ball (313) fixed inside the first transmission rod (311), and a toggle plate (312) sleeved outside the connecting ball (313).

4. The stirring device for use in a water quality detector according to claim 3, characterized in that: The rotor (400) rotates to drive the stirring rod (301) to rotate. Under the action of centrifugal force, the slider (302) drives the first transmission rod (311) to slide downward to compress the first spring (303), thereby increasing the distance between the toggle plate (312) and the stirring rod (301). A wake is generated by the tail of the stirring rod (301) rotating. Under the action of the wake, the toggle plate (312) is driven to swing with the connecting ball (313) as the central axis.

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