Inlet water anti-blocking sampling device

Abstract

The utility model relates to the technical field of sewage detection, in particular to a water inlet anti-blocking sampling device. The water inlet anti-blocking type sampling device comprises a conveying cylinder, a feeding pipe is installed at the bottom of the conveying cylinder, a discharging pipe is installed on the side cylinder body, close to the inner bottom wall, of the conveying cylinder, and a driving component is installed on the conveying cylinder. According to the water inlet anti-blocking sampling device provided by the utility model, when the hydraulic cylinder continuously goes back and forth, the dredging rod at the bottom of the U-shaped middle connecting rod continuously ascends and descends along the feeding pipe, so that the dredging rod can dredge the feeding pipe in real time, impurities are effectively prevented from being deposited and blocked, and the phenomenon that the feeding pipe is blocked by the impurities in sewage is reduced; the barb arranged on the dredging rod can be used for hooking out fibrous impurities wound in the feeding pipe or attached stubborn precipitates, so that the anti-blocking effect is further improved, suspended matters and turbidity in the sewage cannot be influenced, the accuracy of a detection result is guaranteed, and the hidden danger that the result is inaccurate when the sampled sewage is detected is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewage detection technical field especially relates to a water inlet anti -blocking type sampling device. BACKGROUND

[0002] In the sewage detection field, especially in the chemical plant sewage detection process, due to the diversity and complexity of chemical production process, sewage often contains a large amount of impurities of different forms, including suspended particulate matter, flocculent precipitate, fibrous substance etc., the composition is extremely complex, so in the sampling process in the flow tank, the sampling equipment feed pipe is easily blocked, not only will affect the continuity and efficiency of sampling, lead to sampling interruption, also can cause equipment failure due to pipe blockage, increase maintenance cost.

[0003] The existing sampling equipment usually lacks effective anti-blocking and dredging mechanism, most of which only rely on simple pipeline conveying structure for sampling, when encountering sewage containing more impurities, impurities are easy to adhere to the inner wall of the feed pipe and gradually cause the pipe narrow or even completely block, which needs the staff to disassemble and clean frequently, not only time-consuming and laborious, but also may affect the timeliness and accuracy of sampling, in addition, some sampling equipment is provided with some filter screens for anti-blocking, but the filter screen changes the original composition of sewage, resulting in distorted detection results.

[0004] Therefore, it is necessary to provide a new water inlet anti-blocking type sampling device to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a water inlet anti-blocking type sampling device.

[0006] The water inlet anti-blocking type sampling device provided by the utility model comprises a conveying cylinder, a feed pipe is installed at the bottom of the conveying cylinder, an electromagnetic A valve is installed in the pipe body of the feed pipe close to the liquid inlet of the conveying cylinder, a discharge pipe is installed on the side cylinder body close to the inner bottom wall of the conveying cylinder, and an electromagnetic B valve is installed in the pipe body of the discharge pipe close to the liquid outlet of the conveying cylinder.

[0007] A piston is installed in the conveying cylinder, a piston rod is fixedly installed on the piston, a rod cap is fixedly installed at the top of the piston, and a driving part is installed on the conveying cylinder, which drives the piston to reciprocate along the conveying cylinder while staggered opening and closing the electromagnetic A valve and the electromagnetic B valve.

[0008] A de-blocking part is installed on the rod cap, the de-blocking part comprises a U-shaped middle connecting rod, the upper rod body of the U-shaped middle connecting rod is fixedly installed on the rod cap through screws, the lower rod body of the U-shaped middle connecting rod is fixedly installed with a dredging rod coaxially arranged with the feed pipe, and a plurality of annularly distributed barbs are fixedly installed on the dredging rod.

[0009] Preferably, the driving component comprises a curved frame fixedly installed on the conveying cylinder, one side wall of the curved frame is fixedly installed with a hydraulic cylinder, the output end of the hydraulic cylinder faces upward and is fixedly installed with a middle connecting sleeve, and the middle connecting sleeve is fixedly sleeved on the rod cap.

[0010] Preferably, the driving component further comprises an opening and closing column, a switch A and a switch B, the opening and closing column is embedded in the rod cap, the upper and lower column heads of the opening and closing column extend out of the rod cap, the switch A is fixedly installed on the upper surface of the conveying cylinder and is electrically connected with the electromagnetic A valve and the electromagnetic B valve, the switch A corresponds to the lower column head of the opening and closing column, the switch B is fixedly installed on the inner top wall of the curved frame and is electrically connected with the electromagnetic A valve and the electromagnetic B valve, and the switch B corresponds to the upper column head of the opening and closing column.

[0011] When the switch A is turned on, the electromagnetic A valve is turned on while the electromagnetic B valve and the switch B are turned off, and when the switch B is turned on, the electromagnetic B valve is turned on while the electromagnetic A valve and the switch A are turned off.

[0012] Preferably, the conveying cylinder is installed with a green light electrically connected with the electromagnetic A valve and the switch A, and is further installed with a red light electrically connected with the electromagnetic B valve and the switch B.

[0013] Preferably, the U-shaped middle connecting rod passes through a sliding groove formed in the other side frame body of the curved frame and is in sliding connection with the sliding groove.

[0014] Preferably, the length of the piston rod is 5-8 cm longer than the length of the dredging rod.

[0015] Preferably, the pipe opening at the bottom of the feeding pipe is provided with external threads, and the pipe head of the discharging pipe is installed with a threaded butt joint.

[0016] Preferably, the top of the curved frame is fixedly installed with a hoisting frame.

[0017] Compared with the related art, the water inlet anti-blocking type sampling device has the following beneficial effects:

[0018] 1. In the utility model, the opening and closing column in the driving component cooperates with the switch A and the switch B, realizes the staggered automatic opening and closing of the electromagnetic A valve and the electromagnetic B valve, the opening and closing column triggers the switch A before the piston slides upward for sampling, the electromagnetic A valve is turned on and the electromagnetic B valve is turned off, so that the feeding pipe can be fed for sampling; the opening and closing column triggers the switch B before the piston slides downward for sampling, the electromagnetic B valve is turned on and the electromagnetic A valve is turned off, so that the discharging pipe can be discharged, the whole device does not need manual switching of the valve, the operation is simple, quantitative sampling can be realized, and the precision and efficiency of sampling are improved.

[0019] 2, the utility model discloses when the hydraulic cylinder is continuously in the process of return, the dredging rod of the U-shaped connecting rod bottom can continuously lift along the feed pipe, therefore, the dredging rod can realize the real-time dredging of the feed pipe, effectively avoid the deposition of impurities and reduce the phenomenon that the impurities in sewage cause the blockage of the feed pipe, the barb arranged on the dredging rod can hook the fibrous impurities or stubborn deposits adhered in the feed pipe, further improve the anti-blocking effect, and will not affect the suspended solids and turbidity in sewage, guarantee the accuracy of the detection result, avoid the hidden danger that the result is inaccurate when the sewage is sampled and detected. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 Structure diagram of one of preferable embodiments of the water inlet anti-blocking type sampling device provided by the utility model is provided;

[0021] Figure 2 For Figure 1 Structure diagram of the sectional structure of the conveying cylinder shown;

[0022] Figure 3 For Figure 1 Structure diagram of the driving component shown;

[0023] Figure 4 For Figure 2 Structure diagram of the blockage reducing component shown;

[0024] Figure 5 Structure diagram two of preferable embodiments of the water inlet anti-blocking type sampling device provided by the utility model is provided;

[0025] Figure 6 For Figure 5 Structure diagram of the threaded sleeve shown;

[0026] Figure 7 Circuit diagram of switch A, switch B, electromagnetic A valve and electromagnetic B valve provided by the utility model.

[0027] Reference numerals in the drawing: 1, conveying cylinder;11, feed pipe;111, external thread;12, discharge pipe;121, threaded butt joint;2, electromagnetic A valve;3, electromagnetic B valve;4, piston;41, piston rod;5, rod cap;6, driving component;61, curved frame;62, hydraulic cylinder;63, connecting sleeve;64, opening and closing column;65, switch A;66, switch B;7, blockage reducing component;71, U-shaped connecting rod;72, dredging rod;73, barb;8, threaded sleeve;81, filter screen;9, hoisting frame. DETAILED DESCRIPTION

[0028] In order to make the utility model purposes, technical schemes and advantages more clearly, the following will be further described in detail with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0029] The specific implementation of the utility model is described in detail below in combination with specific examples.

[0030] Example one:

[0031] Please refer to Figures 1 to 4 The utility model discloses a water inlet anti -blocking type sampling device, water inlet anti -blocking type sampling device includes conveying cylinder 1, electromagnetic A valve 2, electromagnetic B valve 3, drive component 6 and drop component 7.

[0032] In the embodiment of the utility model, please refer to Figures 1 to 4 The bottom of conveying cylinder 1 is provided with feed pipe 11, and the pipe body of feed pipe 11 close to the liquid inlet of conveying cylinder 1 is provided with electromagnetic A valve 2, the side cylinder of conveying cylinder 1 close to the inner bottom wall is provided with discharge pipe 12, and the pipe body of discharge pipe 12 close to the liquid outlet of conveying cylinder 1 is provided with electromagnetic B valve 3, the pipe orifice of the bottom of feed pipe 11 is provided with external thread 111, and the pipe head of discharge pipe 12 is provided with threaded butt joint 121;

[0033] Conveying cylinder 1 is provided with piston 4, and piston 4 is fixedly provided with piston rod 41, the top of piston 4 is fixedly provided with rod cap 5, drive component 6 is installed on conveying cylinder 1, piston 4 is driven to reciprocate along conveying cylinder 1 at the same time electromagnetic A valve 2 and electromagnetic B valve 3 are staggered on-off by drive component 6, and drive component 6 includes curved frame 61, curved frame 61 is fixedly installed on conveying cylinder 1, one side wall of curved frame 61 is fixedly provided with hydraulic cylinder 62, the output end of hydraulic cylinder 62 faces upwards and is fixedly provided with middle connecting sleeve 63, and middle connecting sleeve 63 is fixedly sleeved on rod cap 5, and the top of curved frame 61 is fixedly provided with lifting frame 9;

[0034] Drive component 6 further includes on-off column 64, switch A 65 and switch B 66, on-off column 64 is embedded in rod cap 5, and the upper and lower column heads of on-off column 64 all extend out of rod cap 5, switch A 65 is fixedly installed on the upper surface of conveying cylinder 1 and is electrically connected with electromagnetic A valve 2 and electromagnetic B valve 3, and switch A 65 and the lower column head of on-off column 64 correspond to each other, switch B 66 is fixedly installed on the inner top wall of curved frame 61 and is electrically connected with electromagnetic A valve 2 and electromagnetic B valve 3, and switch B 66 and the upper column head of on-off column 64 correspond to each other;

[0035] Wherein, when the switch A65 is opened, the electromagnetic A valve 2 is opened at the same time, and the electromagnetic B valve 3 and the switch B66 are closed; when the switch B66 is opened, the electromagnetic B valve 3 is opened, and the electromagnetic A valve 2 and the switch A65 are closed (as shown in the accompanying drawings). Figure 7

[0036] In this embodiment, the lifting frame 9 is fixed to the top wall of the flow tank by screws, the feeding pipe 11 is kept immersed in the flow tank, the threaded interface 121 is connected with the liquid inlet guide pipe on the sampling pipe, and the switch A65 and the switch B66 are powered by the power supply system in the flow tank.

[0037] It should be noted that in the initial state, the hydraulic cylinder 62 is started to return, so that the piston rod 41 drives the piston 4 to slide down to the lowest point of the conveying cylinder 1, at this time, the lower head of the opening and closing column 64 abuts against the switch A65 to open, so that the electromagnetic A valve 2 is opened at the same time, and the electromagnetic B valve 3 and the switch B66 are closed.

[0038] Then, the hydraulic cylinder 62 is opened to drive the piston rod 41 to drive the piston 4 to slide up along the conveying cylinder 1 to the highest point, in this process, a negative pressure is formed in the conveying cylinder 1, and the electromagnetic A valve 2 is opened at the same time, and the electromagnetic B valve 3 is closed, so that the sewage in the flow tank can enter the conveying cylinder 1 through the feeding pipe 11.

[0039] When the piston 4 slides up to the highest point of the conveying cylinder 1, at this time, the upper head of the opening and closing column 64 abuts against the switch B66 to open, so that the electromagnetic B valve 3 is opened at the same time, and the electromagnetic A valve 2 and the switch A65 are closed, then the hydraulic cylinder 62 returns, so that the sewage in the conveying cylinder 1 can be quantitatively discharged into the sampling pipe through the discharge pipe 12.

[0040] Therefore, the opening and closing column 64 in the driving part 6 cooperates with the switch A65 and the switch B66 to realize the staggered automatic opening and closing of the electromagnetic A valve 2 and the electromagnetic B valve 3. Before the piston 4 slides up to sample, the opening and closing column 64 triggers the switch A65, so that the electromagnetic A valve 2 is opened, the electromagnetic B valve 3 and the switch B66 are closed, so that the feeding pipe 11 can feed the sample; before the piston 4 slides down to discharge the sample, the opening and closing column 64 triggers the switch B66, so that the electromagnetic B valve 3 is opened, the electromagnetic A valve 2 and the switch A65 are closed, so that the discharge pipe 12 can discharge the sample, without manual switching of the valve, the operation is simple, and quantitative sampling can be realized, which improves the precision and efficiency of sampling.

[0041] In this embodiment, a green light electrically connected with the electromagnetic A valve 2 and the switch A65 is installed on the conveying cylinder 1, and a red light electrically connected with the electromagnetic B valve 3 and the switch B66 is also installed on the conveying cylinder 1. By observing the changes of the green light and the red light, the staff can quickly know whether the conveying cylinder 1 is liquid inlet or liquid outlet, and if the green light or the red light does not light up, the staff can also quickly know that the electrical element is damaged so as to repair in time.

[0042] ​In the embodiment of the utility model, please refer to Figures 1 to 4 The rod cap 5 is provided with a blockage reducing component 7, and the blockage reducing component 7 comprises a U-shaped middle connecting rod 71, the upper rod body of the U-shaped middle connecting rod 71 is fixedly installed on the rod cap 5 through screws, and the lower rod body of the U-shaped middle connecting rod 71 is fixedly installed with a dredging rod 72 coaxially arranged with the feeding pipe 11, and a plurality of annularly distributed barbs 73 are fixedly installed on the dredging rod 72.

[0043] It should be noted that: when the hydraulic cylinder 62 continuously advances and returns, the dredging rod 72 at the bottom of the U-shaped middle connecting rod 71 can continuously ascend and descend along the feeding pipe 11, so that the dredging rod 72 can realize real-time dredging of the feeding pipe 11, effectively avoid impurity deposition and blockage, and reduce the phenomenon that impurities in sewage cause blockage of the feeding pipe 11, the barbs 73 arranged on the dredging rod 72 can hook out fibrous impurities or stubborn deposits attached in the feeding pipe 11, further improve the anti-blocking effect, and will not affect the suspended solids and turbidity in the sewage, thereby ensuring the accuracy of the detection result and avoiding the hidden danger that the sampling sewage detection results are inaccurate.

[0044] Therefore, by arranging the blockage reducing component 7, the dredging rod 72 contained therein is coaxially arranged with the feeding pipe 11, and when the driving component 6 drives the piston 4 to reciprocate, the U-shaped middle connecting rod 71 drives the dredging rod 72 to ascend and descend along the feeding pipe 11 synchronously, thereby realizing real-time dredging of the feeding pipe 11 and effectively avoiding impurity deposition and blockage. The plurality of annularly distributed barbs 73 on the dredging rod 72 can hook out fibrous impurities or stubborn deposits attached in the feeding pipe 11, further improve the anti-blocking effect, and will not affect the suspended solids and turbidity in the sewage, thereby ensuring the accuracy of the detection result.

[0045] In the present application, the barrel diameter of the conveying barrel 1 and the pipe diameter of the discharge pipe 12 are much larger than the pipe diameter of the feeding pipe 11.

[0046] Further, the U-shaped middle connecting rod 71 passes through the sliding groove formed in the other side of the curved frame 61 and is slidably connected with the sliding groove, thereby improving the stability of the U-shaped middle connecting rod 71 during ascending and descending.

[0047] Further, the length of the piston rod 41 is 5-8 cm longer than the length of the dredging rod 72, so that when the piston 4 is close to the inner bottom wall of the conveying barrel 1, the dredging rod 72 completely slides out of the feeding pipe 11, and the barbs 73 can hook out the impurities in the feeding pipe 11 and discharge them to the flow tank.

[0048] In this utility model, the hydraulic cylinder 62 is connected to a standard hydraulic system via an external pipeline to achieve its extension and retraction control (the hydraulic cylinder 62 obtains power from an external hydraulic pump station via a pipeline, and switches the flow direction of hydraulic oil by operating the directional valve on the pipeline, thereby controlling the extension or retraction of the telescopic rod). The specific setup of this hydraulic system is conventional technology in the field. In addition, the circuits and controls of the solenoid valve A 2, solenoid valve B 3, switch A65, and switch B66 involved in this utility model are all existing technologies and will not be described in detail here.

[0049] Example 2:

[0050] Based on the above embodiment one, a threaded sleeve 8 is added. Please refer to [link / reference]. Figure 5 and Figure 6 The water inlet anti-clogging sampling device also includes a threaded sleeve 8, which matches the external thread 111 on the bottom opening of the feed pipe 11, and the wall of the threaded sleeve 8 has a through cavity, in which a filter screen 81 is embedded.

[0051] It should be noted that when the wastewater to be sampled requires filtration (or centrifugation) for testing items (determining "dissolved" or "filterable" components), the U-shaped connecting rod 71 is removed from the rod cap 5, the threaded sleeve 8 is fitted onto the feed pipe 11 and screwed tightly with the external thread 111, and then the liquid is fed in through the filter screen 81 on the threaded sleeve 8 as the liquid inlet, and the filter screen 81 can filter impurities.

[0052] In this embodiment, the filter 81 is regularly disassembled and cleaned by staff to prevent the inability to take samples due to clogging of the filter 81.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water inlet anti-clogging sampling device, characterized in that, The conveying cylinder (1) is equipped with a feed pipe (11) at its bottom and a solenoid A valve (2) is installed in the body of the feed pipe (11) near the liquid inlet of the conveying cylinder (1). A discharge pipe (12) is installed on the side of the conveying cylinder (1) near the inner bottom wall and a solenoid B valve (3) is installed in the body of the discharge pipe (12) near the liquid outlet of the conveying cylinder (1). A piston (4) is installed inside the conveying cylinder (1), and a piston rod (41) is fixedly installed on the piston (4). A rod cap (5) is fixedly installed on the top of the piston (4). A driving component (6) is installed on the conveying cylinder (1). The piston (4) is driven by the driving component (6) to slide back and forth along the conveying cylinder (1) while the solenoid valve A (2) and the solenoid valve B (3) are opened and closed alternately. The rod cap (5) is equipped with a blockage-reducing component (7), and the blockage-reducing component (7) includes a U-shaped central connecting rod (71). The upper rod body of the U-shaped central connecting rod (71) is fixedly installed on the rod cap (5) by screws, and the lower rod body of the U-shaped central connecting rod (71) is fixedly installed with a clearing rod (72) coaxially arranged with the feed pipe (11), and a plurality of ring-shaped barbs (73) are fixedly installed on the clearing rod (72).

2. The water inlet anti-clogging sampling device according to claim 1, characterized in that, The drive component (6) includes a curved frame (61), which is fixedly installed on the conveying cylinder (1). A hydraulic cylinder (62) is fixedly installed on one side wall of the curved frame (61). The output end of the hydraulic cylinder (62) faces upward and is fixedly installed with a central sleeve (63). The central sleeve (63) is fixedly sleeved on the rod cap (5).

3. The water inlet anti-clogging sampling device according to claim 2, characterized in that, The drive component (6) also includes a closing column (64), a switch A (65), and a switch B (66). The closing column (64) is fitted inside the rod cap (5), and the upper and lower ends of the closing column (64) extend out of the rod cap (5). The switch A (65) is fixedly installed on the upper surface of the conveying cylinder (1) and electrically connected to the solenoid valve A (2) and the solenoid valve B (3). The switch A (65) corresponds to the lower end of the closing column (64). The switch B (66) is fixedly installed on the inner top wall of the curved frame (61) and electrically connected to the solenoid valve A (2) and the solenoid valve B (3). The switch B (66) corresponds to the upper end of the closing column (64). When switch A (65) is turned on, electromagnetic valve A (2) is turned on while electromagnetic valve B (3) and switch B (66) are turned off. When switch B (66) is turned on, electromagnetic valve B (3) is turned on while electromagnetic valve A (2) and switch A (65) are turned off.

4. The water inlet anti-clogging sampling device according to claim 2, characterized in that, The conveying cylinder (1) is equipped with a green light that is electrically connected to the solenoid valve A (2) and the switch A (65), and the conveying cylinder (1) is also equipped with a red light that is electrically connected to the solenoid valve B (3) and the switch B (66).

5. The water inlet anti-clogging sampling device according to claim 2, characterized in that, The U-shaped connecting rod (71) passes through a groove on the other side of the curved frame (61) and is slidably connected to the groove.

6. The water inlet anti-clogging sampling device according to claim 1, characterized in that, The length of the piston rod (41) is 5-8 cm longer than the length of the unblocking rod (72).

7. The water inlet anti-clogging sampling device according to claim 1, characterized in that, The feed pipe (11) has an external thread (111) at the bottom of the pipe opening, and the discharge pipe (12) has a threaded interface (121) installed at the pipe head.

8. The water inlet anti-clogging sampling device according to claim 2, characterized in that, A hoisting frame (9) is fixedly installed on the top of the curved frame (61).

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