Rotary sampling water storage device

Abstract

The utility model discloses a rotary sampling water storage device which comprises a water distribution disc, a liquid injection needle, a first driving unit and a second driving unit, a plurality of sampling bottles are arranged on the water distribution disc in the circumferential direction, the first driving unit can drive the water distribution disc to rotate to convey the sampling bottles, and when the sampling bottles are conveyed to set positions, the liquid injection needle is driven by the first driving unit to rotate. The liquid injection needle can inject liquid into the sampling bottle, a drain valve is arranged at a liquid outlet of the sampling bottle, and the second driving unit can drive the drain valve to be opened and closed through the connecting rod mechanism, so that a sample in the sampling bottle is discharged through the drain pipe. The device is reasonable in structure, convenient to use, reliable in operation and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a rotary sampling and water storage device. Background Technique

[0002] Protecting the environment, curbing ecological deterioration, and promoting the coordinated and sustainable development of economy, society and environment are important and arduous tasks we are facing. Water quality monitoring is an important task in environmental protection. For the research and monitoring of water quality safety issues, water sample collection is a very crucial link.

[0003] At present, environmental monitoring stations, sewage treatment plants, water conservancy, water service and scientific research institutes at all levels need to sample and detect water samples at industrial pollution source discharge outlets, rivers, lakes, seas, etc. The existing sampling mainly adopts manual sampling, which is time-consuming, laborious and inefficient. The existing mechanical sampling equipment often has a complex structure and high cost, which is not conducive to popularization and use. Content of the Utility Model

[0004] The utility model discloses a rotary sampling and water storage device, which solves the technical problems of time-consuming and laborious manual sampling and complex structure and high cost of mechanical sampling equipment in the prior art, and has the technical effects of reasonable structure, convenient use, reliable operation and low cost. The adopted technical scheme is as follows:

[0005] A rotary sampling and water storage device includes a water distribution plate, a liquid injection needle, a first driving unit and a second driving unit. A plurality of sampling bottles are circumferentially arranged on the water distribution plate. The first driving unit can drive the water distribution plate to rotate self to transport the sampling bottles. When the sampling bottles are transported to the set positions, the liquid injection needle can inject liquid into the sampling bottles. A drain valve is arranged at the liquid outlet of the sampling bottles. The second driving unit can drive the drain valve to open and close through a connecting rod mechanism, so that the sample in the sampling bottles is discharged through a drain pipe.

[0006] On the basis of the above technical scheme, it further includes a pressing plate, a fixing rod and a nut. The fixing rod is fixedly connected with the water distribution plate downward, the fixing rod passes through the pressing plate upward, and the nut is screwed with the upper end of the fixing rod to press the pressing plate on the upper end surface of the sampling bottle.

[0007] On the basis of the above technical scheme, the water distribution plate includes grooves arranged corresponding to the sampling bottles one by one, and the bottom of the sampling bottles can be placed in the grooves.

[0008] On the basis of the above technical scheme, the inner bottom surface of the sampling bottle includes an inclined surface, and the liquid outlet is arranged at the lower end of the inclined surface.

[0009] Based on the above technical solution, the drain valve includes a pipe body, a valve stem, a sealing ring and a compression spring. The valve stem is sleeved inside the pipe body, the sealing ring is sleeved outside the valve stem, and the compression spring is sleeved outside the pipe body and can drive the valve stem to stay at the first position so that the sealing ring seals the channel between the valve stem and the pipe body. The second driving unit can drive the valve stem to displace from the first position to the second position through a linkage mechanism to open the channel between the valve stem and the pipe body and connect the liquid outlet and the drain pipe orifice.

[0010] Based on the above technical solution, the pipe body is screwed upward with the liquid outlet. An annular flange is fixedly arranged inside the pipe body, and the annular flange is formed with a central hole. The valve stem passes through the central hole to guide the valve stem. The inner wall surface of the pipe body includes a conical surface that can abut against the sealing ring. When the sealing ring approaches or moves away from the conical surface, the channel between the valve stem and the pipe body is opened or closed.

[0011] Based on the above technical solution, it further includes a shaft rod. The shaft rod passes through a long hole axially extending on the pipe body and is fixedly connected to the valve stem. The two ends of the compression spring respectively abut against the shaft rod and a flange on the outer wall surface of the pipe body. The linkage mechanism drives the valve stem to displace from the first position to the second position through the shaft rod.

[0012] Based on the above technical solution, the first driving unit includes a first motor, a first gear and a second gear. The first gear is coaxially and fixedly connected to the water distribution plate, and the first motor is fixedly arranged and can transmit the rotational motion to the first gear through the second gear.

[0013] Based on the above technical solution, the linkage mechanism includes a fixed seat and a swing rod. The fixed seat is fixedly arranged. The swing rod is hinged to the fixed seat at the middle position. The first end of the swing rod can swing up and down under the action of the second driving unit, and a convex part that can abut against the shaft rod is arranged at the second end of the swing rod.

[0014] Based on the above technical solution, it further includes a third driving unit, and the third driving unit can drive the injection needle to displace up and down.

[0015] Beneficial effects

[0016] The structure of the present utility model is reasonable. A plurality of sampling bottles are arranged on the water distribution plate, and multiple sampling operations can be completed simultaneously, with high efficiency. In addition, the sampling bottles can be separably accommodated in the water distribution plate, which is convenient for taking and placing the sampling bottles and cleaning the sampling bottles, and can be applicable to complex usage environments. The setting of the pressing plate can firmly position the sampling bottles on the water distribution plate during use, which is beneficial to improving the use safety.

[0017] In the present utility model, the drainage mechanism of the sampling bottle adopts a mechanical structure, reducing the application of corresponding electronic components, which is beneficial to reducing costs and reducing failure rates, and has good flexibility and adaptability in use. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only one embodiment of the present invention. For those of ordinary skill in the art, without creative work, other implementation drawings can be obtained by extending the provided drawings.

[0019] Figure 1 : The three-dimensional structure diagram of the present invention;

[0020] Figure 2 : The three-dimensional structure diagram of the cross-sectional view of the present invention;

[0021] Figure 3 : The three-dimensional structure diagram of the water distribution tray in the present invention;

[0022] Figure 4 : The cross-sectional structure diagram of the front view of the drain valve in the present invention; Detailed Embodiments

[0023] The following description and drawings fully disclose the specific implementation schemes herein, enabling those skilled in the art to practice them. Parts and features of some embodiments can be included in or replaced by parts and features of other embodiments. The scope of the embodiments herein includes the entire scope of the claims and all available equivalents of the claims. Herein, terms such as "first", "second", etc. are only used to distinguish one element from another element, and do not require or imply any actual relationship or order between these elements. In fact, the first element can also be called the second element, and vice versa. Moreover, the term "including", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that a structure, device or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such structure, device or equipment. Without more limitations, an element defined by the statement "including one..." does not exclude the existence of another identical element in the structure, device or equipment including the said element. The embodiments herein are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same and similar parts between the embodiments can be referred to each other.

[0024] The terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in this text indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this text and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention. In the description of this text, unless otherwise specified and defined, the terms "installed", "connected", and "joined" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] In this text, unless otherwise specified, the term "plural" means two or more.

[0026] In this text, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0027] In this text, the term "and / or" is an associative relationship describing an object, indicating that three relationships can exist. For example, A and / or B means: A or B, or, the three relationships of A and B.

[0028] As Figures 1 - 4 shown, a rotary sampling water storage device includes a water distribution plate 1, a liquid injection needle 2, a first driving unit 3, and a second driving unit 4.

[0029] As Figure 2 shown, the water distribution plate 1 is fixedly arranged on the base 100. The water distribution plate 1 includes a plurality of grooves 101 arranged circumferentially. A plurality of sampling bottles 5 are correspondingly arranged in the grooves 101. As Figure 3 shown, the bottom of the sampling bottle 5 is accommodated in the groove 101 and is in clearance fit with the groove wall surface of the groove 101, so that it is convenient to take and place the sampling bottle 5.

[0030] It further includes a pressing plate 8, a fixing rod 9, and a nut 10. The fixing rod 9 is fixedly connected to the water distribution plate 1 downward and is coaxial with the water distribution plate 1. The fixing rod 9 passes through the pressing plate 8 upward and is in clearance fit with the pressing plate 8. The nut 10 is screwed to the upper end of the fixing rod 9. By screwing the nut 10, the pressing plate 8 can be pressed against the upper end surface of the sampling bottle 5.

[0031] As Figure 1 shown, the liquid injection port of the sampling bottle 5 is arranged on its upper end surface and is arranged to avoid the pressing plate 8. The liquid injection needle 2 can inject liquid into the sampling bottle 5 through the liquid injection port.

[0032] As Figure 1As shown, it further includes a third driving unit 12. The third driving unit 12 includes a third motor and a lead screw pair. The third motor drives the liquid injection needle 2 to move up and down through the lead screw pair. The liquid injection needle 2 is also connected to a liquid injection pipeline. When the liquid injection needle 2 moves downward and extends into the sampling bottle 5, the sample liquid enters the sampling bottle 5 through the liquid injection pipeline and the liquid injection needle 2.

[0033] The first driving unit 3 can drive the water separation disc 1 to rotate self - sufficiently to transport the sampling bottle 5. The first driving unit 3 includes a first motor, a first gear and a second gear. The first gear is coaxially and fixedly connected to the water separation disc 1, and the overall structure formed by the first gear and the water separation disc 1 is rotationally connected to the base 100 through a bearing. The first motor is fixedly arranged on the base 100 through a motor base. The first motor can transfer the rotational motion to the second gear. The second gear meshes with the first gear and can transfer the rotational motion to the first gear. In addition, it further includes a dividing disc and an opto - coupler. The dividing disc is coaxially fixed on the first gear. The dividing disc includes a number of notches arranged in one - to - one correspondence with the sampling bottles 5. The opto - coupler can identify the notches and send signals to an external controller, so that the number of self - rotation steps of the water separation disc 1 can be identified. Under the action of the first driving unit 3, when the sampling bottle 5 is transported to the set position, the liquid injection needle 2 can inject liquid into the sampling bottle 5.

[0034] The inner bottom surface of the sampling bottle 5 includes an inclined surface, and the liquid outlet is arranged at the lower end of the inclined surface, which is convenient for the sample liquid to be completely discharged. A drain valve 6 is arranged at the liquid outlet of the sampling bottle 5. The second driving unit 4 can drive the drain valve 6 to open and close through a link mechanism 11, so that the sample in the sampling bottle 5 is discharged through a drain pipe.

[0035] As Figure 4 shown, the drain valve 6 includes a pipe body 61, a valve stem 62, a sealing ring 63, a compression spring 63 and a shaft rod 65. The pipe body 61 is screwed upward to the liquid outlet, which is convenient for disassembling the drain valve 6 and is convenient for use and cleaning.

[0036] The valve stem 62 is sleeved in the pipe body 61. The valve stem 62 includes a head and a rod part. The head of the valve stem 62 includes an annular groove, and the sealing ring 63 is sleeved in the annular groove. The inner wall surface of the pipe body 61 includes a conical surface that can abut against the sealing ring 63. In this embodiment, the conical surface is larger at the top and smaller at the bottom. When the sealing ring 63 is close to the conical surface, the valve stem 62 is in the first position, and the channel between the valve stem 62 and the pipe body 61 is closed. When the valve stem 62 axially displaces to make the sealing ring 63 away from the conical surface, the valve stem 62 is in the second position, and the channel between the valve stem 62 and the pipe body 61 is opened, thus connecting the sampling bottle 5 and the drain pipe 7.

[0037] As Figure 4As shown, a ring-shaped flange 67 is fixedly provided inside the pipe body 61. The ring-shaped flange 67 is formed with a central hole, and the rod portion of the valve stem 62 passes through the central hole to guide the valve stem 62; both ends of the shaft rod 65 pass through the long holes axially extending on the side wall of the pipe body 61, and the shaft rod 65 is fixedly connected to the valve stem 62; a compression spring 64 is sleeved outside the pipe body 61, and both ends of the compression spring 64 are respectively abutted against the part of the shaft rod 65 extending outside the pipe body 61 and the flange on the outer wall surface of the pipe body 61. Without external force, the compression spring 64 drives the valve stem 62 to remain in the first position, so that the sealing ring 63 abuts against the conical surface, thereby cutting off the connection between the sampling bottle 5 and the drain pipe 7.

[0038] The second driving unit 4 can drive the valve stem to displace upward from the first position to the second position through the link mechanism 11, so that the drain valve 6 is opened, so that the sample in the sampling bottle 5 is discharged through the drain pipe 7.

[0039] As Figure 1 and 2 As shown, the link mechanism 11 includes a fixed seat and a swing rod. The fixed seat is fixedly arranged on the base 100, and the swing rod is hinged to the fixed seat at the middle position. The second driving unit 4 includes a piston rod that can move up and down. The first end of the swing rod is connected to the piston rod and can swing up and down under the action of the piston rod. The second end of the swing rod is provided with a convex part that can abut against the shaft rod 65. When the first end of the swing rod swings downward, the convex part pushes the shaft rod 65 upward, so that the valve stem 62 can be driven to displace upward from the first position to the second position, and the sealing ring 63 moves away from the conical surface, thereby connecting the sampling bottle 5 and the drain pipe 7 to realize liquid discharge.

[0040] In addition, it also includes a controller, and the controller is electrically connected to the first driving unit 3, the second driving unit 4, the third driving unit 12 and the optocoupler respectively.

[0041] Working process

[0042] Taking one liquid injection process as an example

[0043] First of all, the controller controls the first driving unit 3 to act, so that the water distribution disc 1 rotates to the initial position;

[0044] After that, the controller controls the first driving unit 3 to act, so that the water distribution disc 1 rotates and transports a sampling bottle 5 to below the injection needle 2;

[0045] After that, the controller controls the second driving unit 4 to act, the injection needle 2 moves down from the initial position into the sampling bottle 5, and injects liquid into the sampling bottle 5; after the injection is completed, the controller controls the second driving unit 4 to act, so that the injection needle 2 returns to the initial position;

[0046] In this way, the liquid injection is completed.

[0047] Taking one liquid discharge process as an example

[0048] First, the controller controls the first driving unit 3 to act, so that the water distribution tray 1 rotates to the initial position;

[0049] After that, the controller controls the first driving unit 3 to act, so that the water distribution tray 1 rotates to transport a sampling bottle 5 above the drain pipe 7. At this time, the drain valve 6 is arranged above the drain pipe 7;

[0050] After that, the controller controls the third driving unit 12 to act, so that the swing rod swings and the convex part pushes the shaft rod upward to connect the sampling bottle 5 and the drain pipe 7 to achieve liquid drainage;

[0051] After the liquid drainage is completed, the controller controls the third driving unit 12 to act to reset the swing rod.

[0052] In this way, the liquid drainage is completed.

[0053] The above has described the present utility model by way of example, but the present utility model is not limited to the above specific embodiments. Any modification or variation based on the present utility model falls within the scope of protection required by the present utility model.

Claims

1. A rotary sampling water storage device, characterized in that, It includes a water distribution tray (1), a liquid injection needle (2), a first driving unit (3) and a second driving unit (4). A number of sampling bottles (5) are arranged circumferentially on the water distribution tray (1). The first driving unit (3) can drive the water distribution tray (1) to rotate self - to transport the sampling bottles (5). When the sampling bottle (5) is transported to a set position, the liquid injection needle (2) can inject liquid into the sampling bottle (5). A drain valve (6) is provided at the liquid outlet of the sampling bottle (5). The second driving unit (4) can drive the drain valve to open and close through a link mechanism (11), so that the sample in the sampling bottle (5) is discharged through a drain pipe (7).

2. The sampling water storage device according to claim 1, characterized in that, It further includes a pressing plate (8), a fixing rod (9) and a nut (10). The fixing rod (9) is fixedly connected to the water distribution tray (1) downward. The fixing rod (9) passes through the pressing plate (8) upward. The nut (10) is screwed to the upper end of the fixing rod (9) to press the pressing plate (8) against the upper end face of the sampling bottle (5).

3. The sampling water storage device according to claim 1, characterized in that, The water distribution tray (1) includes grooves (101) provided corresponding to the sampling bottles (5) one by one. The bottom of the sampling bottle (5) can be placed in the groove (101).

4. The sampling water storage device according to claim 1, characterized in that, The inner bottom surface of the sampling bottle (5) includes an inclined surface, and the liquid outlet is provided at the lower end of the inclined surface.

5. The sampling water storage device according to any one of claims 1 to 4, characterized in that, The drain valve (6) includes a pipe body (61), a valve rod (62), a sealing ring (63) and a compression spring (64). The valve rod (62) is sleeved in the pipe body (61). The sealing ring (63) is sleeved outside the valve rod (62). The compression spring (64) is sleeved outside the pipe body (61) and can drive the valve rod (62) to stay in the first position, so that the sealing ring (63) seals the channel between the valve rod (62) and the pipe body (61). The second driving unit (4) can drive the valve rod (62) to displace from the first position to the second position through the link mechanism (11) to open the channel between the valve rod (62) and the pipe body (61), and connect the liquid outlet with the pipe orifice of the drain pipe (7).

6. The sampling water storage device according to claim 5, characterized in that The pipe body (61) is screwed to the liquid outlet upward. An annular flange (67) is fixedly provided in the pipe body (61). The annular flange (67) forms a central hole. The valve rod (62) passes through the central hole to guide the valve rod (62). The inner wall surface of the pipe body (61) includes a conical surface that can abut against the sealing ring (63). When the sealing ring (63) approaches or moves away from the conical surface, the channel between the valve rod (62) and the pipe body (61) is opened and closed.

7. The sampling water storage device according to claim 6, characterized in that, It further includes a shaft rod (65). The shaft rod (65) passes through a long hole axially extending on the pipe body (61) and is fixedly connected to the valve rod (62). The two ends of the compression spring (64) respectively abut against the shaft rod (65) and the flange on the outer wall surface of the pipe body (61). The link mechanism (11) drives the valve rod (62) to displace from the first position to the second position through the shaft rod (65).

8. The sampling water storage device according to claim 7, characterized in that, The first driving unit includes (3) a first motor, a first gear and a second gear. The first gear is fixedly connected coaxially with the water distribution tray (1). The first motor is fixedly arranged and can transmit the rotational motion to the first gear through the second gear.

9. The sampling water storage device according to claim 7 or 8, characterized in that, The link mechanism (11) includes a fixed seat and a swing rod. The fixed seat is fixedly arranged. The swing rod is hinged to the fixed seat at the middle position. The first end of the swing rod can swing up and down under the action of the second driving unit (4). A convex portion capable of abutting against the shaft rod (65) is provided at the second end of the swing rod.

10. The sampling water storage device according to any one of claims 6 to 8, characterized in that, It further includes a third driving unit (12). The third driving unit (12) can drive the liquid injection needle to move up and down.

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