Manual telescopic sampling device for sewage

Abstract

The utility model discloses a manual telescopic sampling device for sewage, and belongs to the technical field of sewage treatment. The manual telescopic sewage sampling device comprises a sampling mechanism and a telescopic mechanism, the telescopic mechanism comprises a fixing rod, a telescopic rod is movably arranged in the fixing rod, a mounting groove is formed in one side of the telescopic rod, a rack is connected into the mounting groove, a power box is connected to the back face of the fixing rod, and an opening is formed in one side of the power box; the interior of the power box is rotationally connected with a rotating shaft, the rotating shaft is sleeved with a gear, the gear is meshed with the rack, the bottom end of the telescopic rod penetrates through the fixed rod and is connected with a connecting frame, the interior of the connecting frame is connected with a mounting rod, and the exterior of the mounting rod is sleeved with a pair of supporting plates; the back surfaces of the pair of connecting strips are respectively connected with the front surfaces of the pair of supporting plates, a sampling barrel is connected between the pair of connecting strips, and the bottom end of the sampling barrel is communicated with a water inlet pipe.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a manual retractable wastewater sampling device. Background Technology

[0002] Wastewater treatment is widely used in various fields such as construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscaping, medical care, and catering, and is increasingly becoming a part of ordinary people's daily lives. During the wastewater treatment process, it is necessary to have timely and comprehensive knowledge of the wastewater's water quality distribution and changes; therefore, regular sampling and testing of wastewater components are required.

[0003] Based on the above, the inventors have discovered the following problems: In the current process of wastewater testing, it is necessary to manually sample the wastewater and then conduct corresponding tests on the samples. However, the existing sampling method mainly involves manually sampling the water body with tools such as sampling tubes. Sampling tube sampling is not convenient for sampling wastewater areas at different depths according to actual needs, and only surface samples of wastewater are obtained, making it difficult to obtain samples from the bottom of the wastewater.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a manual retractable sewage sampling device in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose of this invention is to provide a manual retractable sewage sampling device to solve the problems mentioned in the background art.

[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0007] A manual retractable sewage sampling device includes a sampling mechanism and a retractable mechanism. The retractable mechanism includes a fixed rod, and a retractable rod is movably mounted inside the fixed rod. A mounting groove is formed inside one side of the retractable rod, and a rack is connected inside the mounting groove. A power box is connected to the back of the fixed rod. An opening is formed on one side of the power box, and a rotating shaft is rotatably connected inside the power box. A gear is fitted outside the rotating shaft, and the gear meshes with the rack. The bottom end of the retractable rod passes through the fixed rod and is connected to a connecting frame. A mounting rod is connected inside the connecting frame, and a pair of support plates are fitted outside the mounting rod. The sampling mechanism includes a pair of connecting strips, the backs of which are respectively connected to the fronts of the pair of support plates. A sampling cylinder is connected between the pair of connecting strips, and the bottom end of the sampling cylinder is connected to an inlet pipe.

[0008] Furthermore, a worm gear is fitted on the outside of the rotating shaft near the gear, and a worm is connected to one side of the inner wall of the power box via a bearing, with the worm and the worm gear meshing with each other.

[0009] The beneficial effect of adopting the above-mentioned further solution is that, through the cooperative use of the worm gear and the worm, when the worm rotates, it is easy to drive the worm gear to rotate, thereby realizing the rotation of the shaft.

[0010] Furthermore, one end of the worm gear extends through the power box to the outside and is fitted with a knob.

[0011] The advantage of adopting the above-mentioned further solution is that by setting a knob, the worm gear can be easily driven to rotate when the user turns the knob.

[0012] Furthermore, limit grooves are provided on both outer sides of the telescopic rod, and limit blocks are connected to both inner walls of the fixed rod near the bottom end, with the outer wall of the limit block and the inner wall of the limit groove having a clearance fit.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the limiting groove and the limiting block, when the telescopic rod extends outward to the fixed rod, when the inner top of the limiting groove abuts against the upper end of the limiting block, the telescopic rod is prevented from detaching from the fixed rod.

[0014] Furthermore, the upper end of the sampling cylinder is provided with a piston rod, the bottom end of the piston rod extends through the sampling cylinder into the interior and is connected to a piston plate, the bottom end of the piston plate is connected to a float plate, and both the piston plate and the piston rod are provided with an air extraction chamber.

[0015] The beneficial effect of adopting the above-mentioned further scheme is that by setting a piston rod and a piston plate, the air extraction chamber set in the piston rod is connected to the air extraction chamber in the piston plate. By setting a float plate, since the air pressure is lower than the water pressure, a pressure difference exists in the sampling cylinder, causing the float plate to float. When the float plate floats, it is convenient to push the piston plate and piston rod to move upward.

[0016] Furthermore, both sides of the piston plate are connected to a connecting pipe, and the opposite ends of the two connecting pipes are connected to an air bladder. The inner walls of the sampling cylinder are provided with grooves on both sides at the air bladders, and the inner walls of the grooves are in contact with the outer walls of the air bladders.

[0017] The beneficial effect of adopting the above-mentioned further solution is that, by setting a connecting pipe, when air is drawn into the air extraction chamber of the piston rod and piston plate, the air bladder will deflate under the action of the connecting pipe and contract into the piston plate, so that the outer wall of the air bladder no longer fits with the inner wall of the groove, thereby facilitating the subsequent upward movement of the piston plate.

[0018] Furthermore, a suction assembly is provided on the front of the fixing rod near the sampling cylinder. The suction assembly includes a miniature suction pump and a suction hose. The side of the miniature suction pump is connected to the front of the fixing rod, and the air inlet of the miniature suction pump is connected to the suction hose. The end of the suction hose away from the miniature suction pump is connected to the piston rod.

[0019] The beneficial effect of adopting the above-mentioned further solution is that, by setting up a micro air pump, when the micro air pump is working, it is convenient to extract the air in the air extraction chamber of the piston plate and piston rod through the air extraction hose.

[0020] Furthermore, the length of the suction hose is greater than the maximum extension length of the telescopic rod.

[0021] The advantage of adopting the above-mentioned further solution is that the length of the suction hose is greater than the maximum length of the telescopic rod extending from the fixed rod, thereby facilitating the extension and retraction of the suction hose in conjunction with the telescopic rod.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: This manual retractable sewage sampling device uses the cooperation of gears and racks. When the rotating shaft rotates, it drives the gears to rotate, which facilitates the downward movement of the rack. This allows the telescopic rod to extend from the inside of the fixed rod, so that the connecting frame, mounting rod, support plate, connecting strip, and sampling cylinder are submerged in the sewage. This makes it convenient to sample sewage areas at different depths according to actual needs. By connecting the bottom of the sampling cylinder to the water inlet pipe, it is convenient for sewage to enter the sampling cylinder through the water inlet pipe. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a manual telescopic sewage sampling device provided by this utility model;

[0024] Figure 2 A partially exploded three-dimensional structural diagram of the telescopic rod of a manual telescopic sampling device for wastewater provided by this utility model;

[0025] Figure 3 An exploded three-dimensional structural diagram of the connecting frame and mounting rod of a manual telescopic sewage sampling device provided by this utility model;

[0026] Figure 4 A front cross-sectional view of the sampling cylinder of a manual telescopic sewage sampling device provided by this utility model;

[0027] Figure 5 A side sectional view of the power box of a manual retractable sewage sampling device provided by this utility model.

[0028] In the diagram: 100, Sampling mechanism; 1001, Connecting strip; 1002, Sampling cylinder; 1003, Float plate; 1004, Piston rod; 1005, Piston plate; 1006, Airbag; 1007, Connecting pipe; 1008, Water inlet pipe; 200, Telescopic mechanism; 2001, Fixed rod; 2002, Telescopic rod; 2003, Rack; 2004, Power box; 2005, Rotating shaft; 2006, Gear; 2007, Worm gear; 2008, Worm; 2009, Knob; 2010, Limiting groove; 2011, Limiting block; 2012, Connecting frame; 2013, Mounting rod; 2014, Support plate; 300, Air extraction assembly; 3001, Miniature air extraction pump; 3002, Air extraction hose. Detailed Implementation

[0029] 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.

[0030] Please see Figures 1-5This utility model provides a technical solution: a manual telescopic sampling device for sewage, including a sampling mechanism 100 and a telescopic mechanism 200. The telescopic mechanism 200 includes a fixed rod 2001, and a telescopic rod 2002 is movably mounted inside the fixed rod 2001. A mounting groove is formed inside one side of the telescopic rod 2002, and a rack 2003 is connected inside the mounting groove. A power box 2004 is connected to the back of the fixed rod 2001. An opening is formed on one side of the power box 2004, and a rotating shaft 2005 is rotatably connected inside the power box 2004. A gear 2006 is sleeved on the outside of the rotating shaft 2005, and the gear 2006 meshes with the rack 2003. The bottom end of the telescopic rod 2002 passes through the fixed rod 2001 and is connected to a connecting frame 2012. An installation rod 2013 is connected inside the connecting frame 2012, and a pair of support plates 2014 are sleeved on the outside of the installation rod 2013. The sampling mechanism 100 includes a pair of connecting bars 1001. The back of the pair of connecting bars 1001 is connected to the front of a pair of support plates 2014 respectively, and a sampling cylinder 1002 is connected between the pair of connecting bars 1001. The bottom end of the sampling cylinder 1002 is connected to a water inlet pipe 1008. Through the cooperation of gear 2006 and rack 2003, when the rotating shaft 2005 rotates, it drives the gear 2006 to rotate, which facilitates the drive of the rack 2003 to move downward, so that the telescopic rod 2002 extends out from the inside of the fixed rod 2001, so that the connecting frame 2012, mounting rod 2013, support plate 2014, connecting bar 1001 and sampling cylinder 1002 are submerged in sewage, which facilitates sampling of sewage areas at different depths according to actual needs. By connecting the bottom end of the sampling cylinder 1002 to the water inlet pipe 1008, sewage can easily enter the sampling cylinder 1002 through the water inlet pipe 1008.

[0031] 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.

[0032] Please see Figures 1-5This utility model provides a technical solution: a worm gear 2007 is sleeved on the outside of the rotating shaft 2005 near the gear 2006; a worm 2008 is connected to one side of the inner wall of the power box 2004 via a bearing; the worm 2008 and the worm gear 2007 mesh with each other; one end of the worm 2008 extends through the power box 2004 to the outside and is sleeved with a knob 2009; limit grooves 2010 are opened on both sides of the outer side of the telescopic rod 2002; limit blocks 2011 are connected to both sides of the inner wall of the fixed rod 2001 near the bottom; the limit blocks... The outer wall of 2011 is fitted with the inner wall of the limiting groove 2010 with a clearance. By setting the knob 2009, when the user rotates the knob 2009, it is easy to drive the worm gear 2008 to rotate, which in turn drives the worm wheel 2007 to rotate, thereby realizing the rotation of the rotating shaft 2005. Through the cooperation of the limiting groove 2010 and the limiting block 2011, when the telescopic rod 2002 extends outward to the fixed rod 2001, when the inner top of the limiting groove 2010 abuts against the upper end of the limiting block 2011, the telescopic rod 2002 is prevented from detaching from the fixed rod 2001.

[0033] 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.

[0034] Please see Figures 1-5This utility model provides a technical solution: A piston rod 1004 is provided at the upper end of the sampling cylinder 1002. The bottom end of the piston rod 1004 extends through the sampling cylinder 1002 into the interior and is connected to a piston plate 1005. A float plate 1003 is connected to the bottom end of the piston plate 1005. Both the piston plate 1005 and the piston rod 1004 have suction chambers inside. Connecting pipes 1007 are connected to both sides of the interior of the piston plate 1005. An air bladder 1006 is connected to one of the opposite ends of the two connecting pipes 1007. Grooves are formed on both sides of the inner wall of the sampling cylinder 1002 at the air bladder 1006. The inner wall of the groove fits against the outer wall of the air bladder 1006. A suction assembly 300 is provided on the front of the fixing rod 2001 near the sampling cylinder 1002. The suction assembly 300 includes a miniature suction pump 3001 and a suction hose 3002. The side of the miniature suction pump 3001 is connected to the side of the fixing rod 2001. The front is connected, and the air inlet of the micro air pump 3001 is connected to the air suction hose 3002. The end of the air suction hose 3002 away from the micro air pump 3001 is connected to the piston rod 1004. The length of the air suction hose 3002 is greater than the maximum extension length of the telescopic rod 2002. By setting the micro air pump 3001, when the micro air pump 3001 is working, it is easy to draw out the air in the air suction chamber of the piston plate 1005 and the piston rod 1004 through the air suction hose 3002. This causes the airbag 1006 to deflate under the action of the connecting pipe 1007 and to retract into the piston plate 1005. This causes the outer wall of the airbag 1006 to no longer adhere to the inner wall of the groove. By setting the float plate 1003, since the air pressure is lower than the water pressure, a pressure difference exists in the sampling cylinder 1002, causing the float plate 1003 to float up, which facilitates pushing the piston plate 1005 and the piston rod 1004 to move upward.

[0035] Specifically, the working principle of this manual retractable sewage sampling device is as follows: During use, a knob 2009 is used. When the user rotates the knob 2009, it drives the worm gear 2008 to rotate, which in turn drives the worm wheel 2007 to rotate, thereby rotating the shaft 2005. This, in turn, drives the gear 2006 to rotate, which in turn drives the rack 2003 to move downwards. This allows the retractable rod 2002 to extend from the inside of the fixed rod 2001, immersing the connecting frame 2012, mounting rod 2013, support plate 2014, connecting strip 1001, and sampling cylinder 1002 into the sewage. This facilitates sampling from sewage areas at different depths as needed. Through the cooperation of the limiting groove 2010 and the limiting block 2011, when the retractable rod 2002 extends outwards from the fixed rod 2001, the top of the limiting groove 2010 engages with the limiting block 2011. When the upper ends abut against each other, the telescopic rod 2002 is prevented from detaching from the fixed rod 2001. By setting a micro air pump 3001, when the micro air pump 3001 is working, it is easy to extract the air in the air extraction chamber of the piston plate 1005 and piston rod 1004 through the air extraction hose 3002, so that the airbag 1006 is deflated and retracts into the piston plate 1005 under the action of the connecting pipe 1007, so that the outer wall of the airbag 1006 is no longer in contact with the inner wall of the groove. By setting a float plate 1003, since the air pressure is lower than the water pressure, a pressure difference exists in the sampling cylinder 1002, so that the float plate 1003 floats up, which is convenient to push the piston plate 1005 and piston rod 1004 to move upward. By connecting the water inlet pipe 1008 at the bottom end of the sampling cylinder 1002, it is convenient for sewage to enter the sampling cylinder 1002 through the water inlet pipe 1008.

Claims

1. A manual telescopic wastewater sampling device, characterized in that, The device includes a sampling mechanism (100) and a telescopic mechanism (200). The telescopic mechanism (200) includes a fixed rod (2001), and a telescopic rod (2002) is movably mounted inside the fixed rod (2001). A mounting groove is formed on one side of the telescopic rod (2002), and a rack (2003) is connected inside the mounting groove. A power box (2004) is connected to the back of the fixed rod (2001). An opening is formed on one side of the power box (2004), and a rotating shaft (2005) is rotatably connected inside the power box (2004). A gear (2006) is fitted onto the outside of the rotating shaft (2005). The telescopic rod (2002) meshes with the rack (2003). The bottom end of the telescopic rod (2002) passes through the fixed rod (2001) and is connected to the connecting frame (2012). The connecting frame (2012) is connected to the mounting rod (2013). A pair of support plates (2014) are sleeved on the outside of the mounting rod (2013). The sampling mechanism (100) includes a pair of connecting strips (1001). The back of the pair of connecting strips (1001) is connected to the front of the pair of support plates (2014). A sampling tube (1002) is connected between the pair of connecting strips (1001). The bottom end of the sampling tube (1002) is connected to the water inlet pipe (1008).

2. The manual retractable sewage sampling device according to claim 1, characterized in that, A worm gear (2007) is fitted on the outside of the rotating shaft (2005) near the gear (2006). A worm (2008) is connected to one side of the inner wall of the power box (2004) via a bearing. The worm (2008) and the worm gear (2007) mesh with each other.

3. The wastewater manual telescopic sampling device according to claim 2, characterized in that, One end of the worm gear (2008) extends through the power box (2004) to the outside and is fitted with a knob (2009).

4. A manual retractable wastewater sampling device according to claim 3, characterized in that, The telescopic rod (2002) has limit grooves (2010) on both outer sides. The fixed rod (2001) has limit blocks (2011) connected to both inner walls near the bottom. The outer wall of the limit block (2011) is clearance-fitted with the inner wall of the limit groove (2010).

5. A manual retractable wastewater sampling device according to claim 1, characterized in that, The upper end of the sampling cylinder (1002) is provided with a piston rod (1004). The bottom end of the piston rod (1004) extends through the sampling cylinder (1002) into the interior and is connected to a piston plate (1005). The bottom end of the piston plate (1005) is connected to a float plate (1003). Both the piston plate (1005) and the piston rod (1004) are provided with an air extraction chamber.

6. A manual retractable wastewater sampling device according to claim 5, characterized in that, Both sides of the piston plate (1005) are connected to a connecting pipe (1007), and the opposite ends of the two connecting pipes (1007) are connected to an air bladder (1006). The inner walls of the sampling cylinder (1002) are provided with grooves on both sides at the air bladder (1006), and the inner walls of the grooves are in contact with the outer walls of the air bladder (1006).

7. A manual retractable wastewater sampling device according to claim 1, characterized in that, A suction assembly (300) is provided on the front of the fixed rod (2001) near the sampling cylinder (1002). The suction assembly (300) includes a miniature suction pump (3001) and a suction hose (3002). The side of the miniature suction pump (3001) is connected to the front of the fixed rod (2001), and the air inlet end of the miniature suction pump (3001) is connected to the suction hose (3002). The end of the suction hose (3002) away from the miniature suction pump (3001) is connected to the piston rod (1004).

8. A manual retractable wastewater sampling device according to claim 7, characterized in that, The length of the suction hose (3002) is greater than the maximum telescopic length of the telescopic rod (2002).

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