Portable water well water sampling device

Abstract

The invention discloses a portable water well water sampling device, and relates to the technical field of sampling devices.The portable water well water sampling device comprises a support, a winch, a second steel wire hose, a two-way connector, a third steel wire hose and a motor water suction pump, a filter screen cylinder is arranged on the lower surface of the motor water suction pump, and a fixing frame is fixedly connected to the inner wall of the filter screen cylinder; a steel ruler water level gauge is installed on the fixing frame, a base is fixedly connected to the bottom end of the filter screen cylinder, an anti-blocking mechanism used for preventing mesh holes from being blocked is arranged on the base, and a butt joint mechanism used for butt joint of the filter screen cylinder and the motor water pump is arranged on the filter screen cylinder. According to the underground water sampling device, through the anti-blocking mechanism, when the meshes in the filter screen cylinder are blocked by impurities in water and the flow of the water is reduced, certain impact force is caused by the water to the meshes of the filter screen cylinder, so that the condition that the meshes of the filter screen cylinder are blocked by the impurities is effectively relieved, and the underground water sampling efficiency can be further improved.

Description

Technical Field

[0001] The invention relates to the technical field of sampling devices, in particular to a portable well water sampling device. Background Art

[0002] Groundwater sampling is mainly for monitoring water quality, tracing pollution sources, complying with environmental regulations, supporting water resource management, promoting scientific research and protecting public health. These sampling activities provide key information on groundwater quality and help ensure the sustainable use and protection of water resources. Groundwater from wells has become the preferred method to ensure accurate and reliable sampling due to its representativeness, convenience, feasibility of long-term monitoring, safety and versatility. It helps to continuously track changes in water quality and support water resource management.

[0003] At present, when using the groundwater sampling device, it can efficiently extract the groundwater from the well through the cooperation of the motor water pump and the electric high-pressure air compressor water pump, without being affected by the shallow water level of the groundwater monitoring well. However, in this process, due to the high impurity content in the groundwater, improper operation and maintenance, etc., the mesh of the net tube will be blocked by impurities, resulting in poor water flow efficiency and stability of the sampled water. In order to further improve the efficiency of groundwater sampling, based on this, a portable well water sampling device is now provided, which can eliminate the disadvantages of the existing device. Summary of the invention

[0004] The object of the present invention is to provide a portable well water sampling device to solve the problems in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A portable well water sampling device comprises a bracket, a winch is rotatably connected to the bracket, a second steel wire hose is rolled up on the winch, a two-way joint is arranged at one end of the second steel wire hose, the two-way joint is located outside the winch, a third steel wire hose is arranged at the bottom end of the two-way joint, a motor water pump is arranged at the bottom end of the third steel wire hose, a filter screen cylinder is arranged on the lower surface of the motor water pump, a fixing frame is fixedly connected to the inner wall of the filter screen cylinder, a steel ruler water level gauge is installed on the fixing frame, the bottom end of the filter screen cylinder is fixedly connected to a base, and an anti-blocking mechanism for preventing mesh clogging is arranged on the base; The filter screen cylinder is provided with a docking mechanism for docking the filter screen cylinder with the motor water pump.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional solution: the anti-blocking mechanism includes: A rotating assembly disposed on a base; The rotating assembly comprises: A support rotating block is arranged inside the base, the support rotating block is rotatably connected to the base, a connecting rotating rod is fixedly connected to the top of the support rotating block, the connecting rotating rod passes through the base to the inside of the filter screen cylinder, a spiral fan is fixedly connected to the top of the connecting rotating rod, and the spiral fan is located below the steel ruler water level gauge; The connecting rotating rod is provided with a first lifting assembly; A limit position assembly is arranged on the connecting rotating rod.

[0007] In an optional solution: the first lifting component includes: A plurality of lifting push plates are vertically and equidistantly slidably sleeved on the outer wall of the connecting rotating rod, a plurality of first guide plates are fixedly connected to the inner wall of the filter screen cylinder at equal intervals in the circumferential direction, the lifting push plate is slidably sleeved on the outer walls of the plurality of first guide plates, a plurality of first guide sliders are fixedly connected to the inner wall of the lifting push plate at equal intervals in the circumferential direction, the outer walls of the plurality of first guide sliders are all hemispherical, and a first guide groove for the first guide slider to slide is provided at the connection position between the connecting rotating rod and the first guide slider.

[0008] In an optional solution: the limit assembly includes: A limit turntable is fixedly connected to the outer wall of the connecting rotating rod, the limit turntable is rotatably connected to the base, a first limit ring is integrally formed on the outer wall of the limit turntable, a first limit rotation groove for the first limit ring to rotate is provided at the connecting position of the base and the first limit ring, and the bottom end of the limit turntable is fixedly connected to a limit rotating cylinder, and the limit rotating cylinder is located on the outer side of the supporting rotating block; The limiting rotating drum is provided with a second lifting assembly; A reset component is arranged on the supporting rotating block.

[0009] In an optional solution: the second lifting assembly includes: A lifting slip ring is slidably sleeved on the outer wall of the limiting rotating drum, and a plurality of second guide plates are fixedly connected to the inner wall of the base at equal intervals in the circumferential direction. The lifting slip ring is slidably sleeved on the outer walls of the plurality of second guide plates, and a plurality of second guide sliders are fixedly connected to the inner wall of the lifting slip ring at equal intervals in the circumferential direction, and the outer walls of the plurality of second guide sliders are all hemispherical, and a second guide groove for the sliding of the second guide slider is provided at the connection position between the limiting rotating drum and the second guide slider.

[0010] In an optional solution: the reset component is a torsion spring sleeved on the outer wall of the supporting rotating block, and the two end portions of the torsion spring are respectively integrally formed with end heads that penetrate into the interior of the limiting turntable and the base, and the position where the limiting turntable, the base and the end heads are connected are provided with hole grooves for inserting the end heads.

[0011] In an optional solution: the docking mechanism includes: A docking assembly disposed on the filter screen cylinder; The docking assembly includes: A second docking ring fixed on the outer wall of the filter screen cylinder, a first docking ring is arranged on the upper surface of the second docking ring, the first docking ring is fixedly connected to the outer wall of the motor water pump, a plurality of connecting blocks are fixedly connected to the bottom end of the first docking ring at equal intervals in the circumferential direction, a plurality of the connecting blocks all penetrate into the interior of the second docking ring, a docking plug-in block is fixedly connected to the bottom ends of the plurality of connecting blocks, the outer wall of the bottom end of the docking plug-in block is truncated, an arc-shaped slide groove for sliding the docking plug-in block and the connecting block is provided at the connecting position of the second docking ring and the docking plug-in block, a docking slot for sliding the docking plug-in block up and down is provided at one end of the second docking ring located at the arc-shaped slide groove, the inner cavity of the docking slot is connected to the inner cavity of the arc-shaped slide groove; The first docking ring is provided with a locking assembly.

[0012] In an optional solution: the locking assembly is a bolt arranged on the first docking ring, the bolt passes through the first docking ring to the inside of the second docking ring, and the bolt is threadedly connected to the second docking ring.

[0013] In an optional scheme: one end of the winch is fixedly connected to a fixed joint, the other end of the second steel wire hose is fixedly connected to one end of the fixed joint, the outer wall of the fixed joint is rotatably sleeved with a rotating joint, the inner wall of the rotating joint is integrally formed with a second limiting ring, a second limiting rotation groove for the second limiting ring to rotate is opened at the connection position between the fixed joint and the second limiting ring, an electric high-pressure air compressor water pump is provided on one side of the bracket, a water inlet and a water outlet are symmetrically installed on the electric high-pressure air compressor water pump, a first steel wire hose is provided between the winch and the electric high-pressure air compressor water pump, one end of the first steel wire hose is fixedly connected to the water inlet of the electric high-pressure air compressor water pump by a spiral buckle, and the other end of the first steel wire hose is fixedly connected to the port of the second steel wire hose by a spiral buckle.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses an anti-blocking mechanism to cause a certain impact force on the mesh holes of the filter cylinder when the mesh holes on the filter cylinder are blocked by impurities in the water, causing the water flow rate to decrease, so as to effectively alleviate the situation where the mesh holes of the filter cylinder are blocked by impurities, thereby further improving the efficiency of groundwater sampling.

[0015] 2. The present invention can realize convenient docking, fixing and separation between the motor water pump and the filter screen cylinder through the docking mechanism, thereby conveniently maintaining the filter screen cylinder and the steel ruler water level gauge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the two-way joint structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the docking mechanism structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the internal structure of the filter cylinder of the present invention.

[0020] Figure 5 It is a schematic diagram of the internal structure of the base of the present invention.

[0021] Figure 6 It is a schematic diagram of the structure of the second guide chute of the present invention.

[0022] Figure 7 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the figure.

[0023] Figure 8 For the present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the figure.

[0024] Fig. 9 For the present invention Figure 4 Schematic diagram of the local enlarged structure at point C in the figure.

[0025] Notes on reference numerals: 1. bracket; 201. lifting push plate; 202. first guide slide groove; 203. support rotating block; 204. lifting slip ring; 205. propeller fan; 206. first guide plate; 207. connecting rotating rod; 208. first guide slider; 209. limit rotating disk; 2010. torsion spring; 2011. second guide plate; 2012. second guide slider; 2013. second guide slide groove; 2014. limit rotating cylinder; 301. docking plug block; 302, docking slot; 303, arc-shaped slide groove; 304, first docking ring; 305, connecting block; 306, second docking ring; 307, bolt; 4, electric high-pressure air compressor water pump; 5, first steel wire hose; 6, second steel wire hose; 7, capstan; 8, two-way joint; 9, third steel wire hose; 10, motor water pump; 11, filter screen cylinder; 12, base; 13, fixing bracket; 14, steel ruler water level gauge; 15, fixed joint; 16, rotating joint. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] In one embodiment, Figure 1-Figure 9 As shown, a portable well water sampling device comprises a bracket 1, a winch 7 is rotatably connected to the bracket 1, a second steel wire hose 6 is rolled up on the winch 7, one end of the second steel wire hose 6 is provided with a two-way joint 8, the two-way joint 8 is located on the outside of the winch 7, a third steel wire hose 9 is provided at the bottom of the two-way joint 8, a motor water pump 10 is provided at the bottom of the third steel wire hose 9, the second steel wire hose 6, the two-way joint 8, the third steel wire hose 9 and the motor water pump 10 are all fixedly connected by means of a spiral buckle, a filter screen cylinder 11 is provided on the lower surface of the motor water pump 10, a fixing frame 13 is fixedly connected to the inner wall of the filter screen cylinder 11, a steel ruler water level gauge 14 is installed on the fixing frame 13, a base 12 is fixedly connected to the bottom end of the filter screen cylinder 11, a fixing joint 15 is fixedly connected to one end of the winch 7, and the second steel wire hose 6 is provided with a third steel wire hose 9. The other end of the tube 6 is fixedly connected to one end of the fixed joint 15, and a swivel joint 16 is rotatably sleeved on the outer wall of the fixed joint 15, and a second limiting ring is integrally formed on the inner wall of the swivel joint 16. A second limiting rotation groove for the second limiting ring to rotate is provided at the connecting position of the fixed joint 15 and the second limiting ring. An electric high-pressure air compressor water pump 4 is arranged on one side of the bracket 1, and a water inlet and a water outlet are symmetrically installed on the electric high-pressure air compressor water pump 4. A first steel wire hose 5 is arranged between the capstan 7 and the electric high-pressure air compressor water pump 4, and one end of the first steel wire hose 5 is fixedly connected to the water inlet of the electric high-pressure air compressor water pump 4 through a spiral buckle, and the other end of the first steel wire hose 5 is fixedly connected to the port of the second steel wire hose 6 through a spiral buckle, and an anti-blocking mechanism for preventing mesh blockage is arranged on the base 12; The filter screen cylinder 11 is provided with a docking mechanism for docking the filter screen cylinder 11 with the motor water pump 10; In this embodiment, it is necessary to specially explain that: the electric high-pressure air compressor water pump 4 is electrically connected to the power supply by means of power plugging, and at the same time, the electric high-pressure air compressor water pump 4, the first steel wire hose 5, the rotary joint 16, the fixed joint 15, the second steel wire hose 6, the two-way joint 8, the third steel wire hose 9, the motor pump 10, and the steel ruler water level gauge 14 are all electrically connected by means of plug-in power supply, wherein the second steel wire hose 6 and the third steel wire hose 9 are both provided with scale bars, and the capstan 7 is provided with a buzzer for detecting whether the device is powered on; When in use, the entire sampling device can be placed in a state where the power circuit is waiting to be powered by the plug-in power supply and the spiral buckle connection method is used, and the length of the second steel hose 6 is extended according to actual conditions. In this process, the filter screen cylinder 11 is pushed to contact the lower surface of the motor pump 10. At this time, the motor pump 10 and the filter screen cylinder 11 can be conveniently docked and fixed through the docking mechanism. After sampling the water sample, the motor pump 10 and the filter screen cylinder 11 can be conveniently separated to realize convenient maintenance of the filter screen cylinder 11 and the steel ruler water level gauge 14. When sampling groundwater samples, when the mesh holes on the filter screen cylinder 11 are blocked by impurities in the water, causing the water flow rate to decrease, the anti-blocking mechanism can push the water in the inner cavity of the filter screen cylinder 11, causing a certain impact force on the mesh holes of the filter screen cylinder 11, so as to effectively alleviate the situation where the mesh holes of the filter screen cylinder 11 are blocked by impurities, thereby further improving the efficiency of groundwater sampling; In one embodiment, Figure 4-Figure 9 As shown, the anti-blocking mechanism includes: a rotating assembly disposed on the base 12; The rotating assembly includes: a supporting rotating block 203 disposed inside the base 12, the supporting rotating block 203 is rotatably connected to the base 12, a connecting rotating rod 207 is fixedly connected to the top of the supporting rotating block 203, the connecting rotating rod 207 penetrates the base 12 to the inside of the filter screen cylinder 11, and a propeller 205 is fixedly connected to the top of the connecting rotating rod 207, and the propeller 205 is located below the steel ruler water level gauge 14; A first lifting assembly is provided on the connecting rotating rod 207; A limit position assembly is provided on the connecting rotating rod 207; The first lifting assembly includes: a plurality of lifting push plates 201 vertically and equidistantly slidably sleeved on the outer wall of the connecting rotating rod 207, a plurality of first guide plates 206 are equidistantly fixedly connected to the inner wall of the filter screen cylinder 11 in the circumferential direction, the lifting push plate 201 is slidably sleeved on the outer wall of the plurality of first guide plates 206, a plurality of first guide sliders 208 are equidistantly fixedly connected to the inner wall of the lifting push plate 201 in the circumferential direction, the outer walls of the plurality of first guide sliders 208 are all hemispherical, a first guide slot 202 for the first guide slider 208 to slide is provided at the connection position between the connecting rotating rod 207 and the first guide slider 208, a certain gap is provided between the outer wall of the lifting push plate 201 and the inner wall of the filter screen cylinder 11, through the mutual cooperation of the rotating assembly and the first lifting assembly, when the mesh holes on the filter screen cylinder 11 are blocked by impurities in the water and the water flow rate is reduced, a certain impact force is caused to the mesh holes of the filter screen cylinder 11 by the water, so as to effectively alleviate the situation that the mesh holes of the filter screen cylinder 11 are blocked by impurities; In one embodiment, Figure 4-Figure 9As shown, the limiting assembly includes: a limiting rotating disk 209 fixedly connected to the outer wall of the connecting rotating rod 207, the limiting rotating disk 209 is rotatably connected to the base 12, the outer wall of the limiting rotating disk 209 is integrally formed with a first limiting ring, and a first limiting rotating groove for the first limiting ring to rotate is provided at the position where the base 12 and the first limiting ring are connected, and the bottom end of the limiting rotating disk 209 is fixedly connected to a limiting rotating cylinder 2014, and the limiting rotating cylinder 2014 is located on the outer side of the supporting rotating block 203; A second lifting assembly is provided on the limiting rotating drum 2014; A reset component is provided on the supporting rotating block 203; The second lifting assembly includes: a lifting slip ring 204 slidably sleeved on the outer wall of the limiting rotating cylinder 2014, a plurality of second guide plates 2011 are fixedly connected to the inner wall of the base 12 at equal intervals in the circumferential direction, the lifting slip ring 204 is slidably sleeved on the outer walls of the plurality of second guide plates 2011, a plurality of second guide sliders 2012 are fixedly connected to the inner wall of the lifting slip ring 204 at equal intervals in the circumferential direction, the outer walls of the plurality of second guide sliders 2012 are all hemispherical, and a second guide slot 2013 for the second guide slider 2012 to slide is provided at the connection position between the limiting rotating cylinder 2014 and the second guide slider 2012; The reset component is a torsion spring 2010 sleeved on the outer wall of the support rotating block 203. The two ends of the torsion spring 2010 are respectively integrally formed with terminals that penetrate into the limiting rotating disk 209 and the inside of the base 12. The limiting rotating disk 209, the base 12 and the terminals are connected at positions where holes for the terminals to be inserted are provided. Through the cooperation of the limiting component, the second lifting component and the reset component, the connecting rotating rod 207 can be rotationally limited. In one embodiment, Figure 1-Figure 7 As shown, the docking mechanism includes: a docking assembly arranged on the filter screen cylinder 11; The docking assembly includes: a second docking ring 306 fixed on the outer wall of the filter screen cylinder 11, a first docking ring 304 is arranged on the upper surface of the second docking ring 306, the first docking ring 304 is fixedly connected to the outer wall of the motor water pump 10, a plurality of connecting blocks 305 are fixedly connected to the bottom end of the first docking ring 304 at equal intervals in the circumferential direction, the plurality of connecting blocks 305 are all penetrated into the interior of the second docking ring 306, the bottom ends of the plurality of connecting blocks 305 are all fixedly connected to the docking plug block 301, the outer wall of the bottom end of the docking plug block 301 is truncated, the second docking ring 306 and the docking plug block 301, the connecting block 305 are connected at the position where the second docking ring 306 is connected with the docking plug block 301 and the connecting block 305, an arc-shaped slide groove 303 for the docking plug block 301 and the connecting block 305 to slide is provided, the second docking ring 306 is located at one end of the arc-shaped slide groove 303. The end portion of the docking slot 302 for the docking plug block 301 to slide up and down is provided, and the inner cavity of the docking slot 302 and the inner cavity of the arc-shaped slide groove 303 are mutually connected; A locking assembly is provided on the first docking ring 304; The locking assembly is a bolt 307 arranged on the first docking ring 304. The bolt 307 passes through the first docking ring 304 to the interior of the second docking ring 306. The bolt 307 is threadedly connected to the second docking ring 306. Through the mutual cooperation of the docking assembly and the locking assembly, convenient docking, fixing and separation between the motor water pump 10 and the filter screen cylinder 11 can be achieved, so that the filter screen cylinder 11 and the steel ruler water level gauge 14 can be conveniently maintained.

[0028] The above embodiment discloses a portable well water sampling device, wherein, when in use, the power supply, the electric high-pressure air compressor water pump 4, the first steel wire hose 5, the rotary joint 16, the second steel wire hose 6, the motor water pump 10 and the steel ruler water level gauge 14 are sequentially connected by means of plug-in power supply and spiral buckle connection. If the water level of the well is too deep, so that the length of the second steel wire hose 6 is insufficient, at this time, the second steel wire hose 6, the two-way joint 8, the third steel wire hose 9 and the motor water pump 10 are sequentially connected by means of plug-in power supply and spiral buckle connection, so that the entire sampling device can be in a state where the power circuit is waiting to be powered on, and the length of the second steel wire hose 6 is extended according to actual conditions; During this process, the filter screen cylinder 11 is pushed to contact the lower surface of the motor pump 10. At this time, the second docking ring 306 is driven by the filter screen cylinder 11 to contact the lower surface of the first docking ring 304. At the same time, the second docking ring 306 is sleeved on the outer wall of the docking block 301 through the docking slot 302 until the upper surface of the second docking ring 306 contacts the lower surface of the first docking ring 304. Then, the motor pump 10 is rotated to drive the first docking ring 304 to rotate. At this time, the docking block 301 is separated from the inner wall of the docking slot 302 by the connecting block 305 and is driven by the first docking ring 304. The first and second docking rings 304 and 306 are screwed together to lock the first and second docking rings 304 and 306. The first and second docking rings 304 and 306 are screwed together to lock the first and second docking rings 304 and 306. The motor pump 10 and the filter screen cylinder 11 can be conveniently connected and docked. After the water sample is collected, the motor pump 10 and the filter screen cylinder 11 can be conveniently separated by performing the above operation in reverse order. The filter screen cylinder 11 and the steel ruler water level gauge 14 can be conveniently maintained. Afterwards, the second steel hose 6 is unwound by the winch 7, and the motor water pump 10 can be put into the deep water well. At this time, the fixed joint 15 is displaced under the drive of the winch 7, and the rotary joint 16 is synchronously moved under the drive of the fixed joint 15. At this time, the rotary joint 16 can rotate along the outer wall of the fixed joint 15 through the cooperation of the second limiting ring and the second limiting rotating groove, effectively preventing the first steel hose 5 from twisting and bending during the rotation of the winch 7; When the filter screen cylinder 11 contacts the water in the deep well, the water enters the inner cavity of the filter screen cylinder 11 through the mesh holes on the filter screen cylinder 11, and flows to the top of the inner cavity of the filter screen cylinder 11 through the gap between the filter screen cylinder 11 and the lifting push plate 201. When the steel ruler water level gauge 14 contacts the water, the whole sampling device is powered on, and the electric high-pressure air compressor water pump 4 and the motor water pump 10 are started to work. At this time, the buzzer on the capstan 7 makes a buzzer sound to prompt that the steel ruler water level gauge 14 has reached the buried depth of the underground water level. At the same time, the second steel wire hose is continuously powered on through the capstan 7. 6 is unwound until the motor pump 10 continues to be lowered for 20-50cm, and then the lowering of the motor pump 10 can be stopped, so that groundwater can be collected. At this time, through the cooperation between the electric high-pressure air compressor water pump 4 and the motor pump 10, water can be extracted through the cooperation of the third steel wire hose 9, the two-way joint 8, the second steel wire hose 6, the fixed joint 15, the rotary joint 16 and the first steel wire hose 5. When the water flow at the outlet of the electric high-pressure air compressor water pump 4 is in a stable discharge state, the groundwater sample can be sampled at intervals of 1-2 minutes; During this process, under the impact of the water flow, the propeller 205 drives the limit turntable 209 and the support turntable 203 to rotate through the connecting rod 207. At this time, the limit turntable 209 twists the torsion spring 2010 through rotation, and at the same time, the connecting rod 207 drives the first guide slot 202 to guide the first guide slider 208 through rotation. At this time, the lifting push plate 201 rises along the outer wall of the first guide plate 206 through the first guide slider 208 under the guidance of the inner wall of the first guide slot 202. At the same time, the limit rotating drum 20 14 drives the second guide slot 2013 to guide the second guide slider 2012 by rotating. At this time, the lifting slip ring 204 is guided by the second guide slider 2012 and the inner wall of the second guide slot 2013, and rises along the outer wall of the second guide plate 2011 until the first guide slider 208 and the second guide slider 2012 contact the inner wall tops of the first guide slot 202 and the second guide slot 2013 respectively, so that the connecting rod 207 can be rotationally limited to stop the propeller 205 from rotating. When the mesh holes on the filter screen cylinder 11 are clogged by impurities in the water, causing the water flow rate to decrease, the torsion spring 2010 drives the limit turntable 209 to rotate and reset through rebound, and the propeller fan 205 is synchronously reset by the limit turntable 209 through the connecting rotating rod 207. In this process, the first guide slider 208 and the second guide slider 2012 drive the lifting push plate 201 and the lifting slip ring 204 to reset synchronously and quickly under the guidance of the inner walls of the first guide slot 202 and the second guide slot 2013 respectively. At this time, the strong thrust generated by the reset of the lifting push plate 201 can push the water in the inner cavity of the filter screen cylinder 11, causing a certain impact force on the mesh holes of the filter screen cylinder 11, so as to effectively alleviate the situation where the mesh holes of the filter screen cylinder 11 are clogged by impurities, thereby further improving the efficiency of groundwater sampling.

[0029] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A portable well water sampling device, comprising a bracket (1), a winch (7) rotatably connected to the bracket (1), a second steel wire hose (6) being wound on the winch (7), a two-way joint (8) being provided at one end of the second steel wire hose (6), the two-way joint (8) being located outside the winch (7), a third steel wire hose (9) being provided at the bottom end of the two-way joint (8), a motor water pump (10) being provided at the bottom end of the third steel wire hose (9), a filter screen cylinder (11) being provided on the lower surface of the motor water pump (10), a fixing frame (13) being fixedly connected to the inner wall of the filter screen cylinder (11), a steel ruler water level gauge (14) being installed on the fixing frame (13), a base (12) being fixedly connected to the bottom end of the filter screen cylinder (11), characterized in that: The base (12) is provided with an anti-blocking mechanism for preventing the mesh from being blocked; The filter screen cylinder (11) is provided with a docking mechanism for docking the filter screen cylinder (11) with the motor water pump (10).

2. A portable well water sampling device according to claim 1, characterized in that: The anti-blocking mechanism comprises: a rotating component arranged on a base (12); The rotating assembly comprises: a supporting rotating block (203) arranged inside the base (12), the supporting rotating block (203) being rotatably connected to the base (12), a connecting rotating rod (207) being fixedly connected to the top of the supporting rotating block (203), the connecting rotating rod (207) penetrating the base (12) to the inside of the filter screen cylinder (11), a propeller fan (205) being fixedly connected to the top of the connecting rotating rod (207), and the propeller fan (205) being located below the steel ruler water level gauge (14); The connecting rotating rod (207) is provided with a first lifting assembly; A limit position assembly is provided on the connecting rotating rod (207).

3. A portable well water sampling device according to claim 2, characterized in that: The first lifting assembly comprises: a plurality of lifting push plates (201) vertically and equidistantly slidably sleeved on the outer wall of the connecting rotating rod (207); a plurality of first guide plates (206) are equidistantly and fixedly connected to the inner wall of the filter screen cylinder (11); the lifting push plate (201) is slidably sleeved on the outer walls of the plurality of first guide plates (206); a plurality of first guide sliding blocks (208) are equidistantly and fixedly connected to the inner wall of the lifting push plate (201); the outer walls of the plurality of first guide sliding blocks (208) are all hemispherical; and a first guide sliding groove (202) for the first guide sliding block (208) to slide is provided at the connection position between the connecting rotating rod (207) and the first guide sliding block (208).

4. A portable well water sampling device according to claim 2, characterized in that: The limiting assembly comprises: a limiting rotating disk (209) fixedly connected to the outer wall of the connecting rotating rod (207), the limiting rotating disk (209) being rotatably connected to the base (12), a first limiting ring being integrally formed on the outer wall of the limiting rotating disk (209), a first limiting rotating groove for rotation of the first limiting ring being provided at a position where the base (12) and the first limiting ring meet, the bottom end of the limiting rotating disk (209) being fixedly connected to a limiting rotating cylinder (2014), the limiting rotating cylinder (2014) being located on the outer side of the supporting rotating block (203); A second lifting assembly is arranged on the position-limiting rotating drum (2014); The supporting rotating block (203) is provided with a reset component.

5. A portable well water sampling device according to claim 4, characterized in that: The second lifting component comprises: a lifting ring (204) slidably sleeved on the outer wall of a limiting rotating drum (2014); a plurality of second guide plates (211) are fixedly connected to the inner wall of the base (12) at equal intervals in the circumferential direction; the lifting ring (204) is slidably sleeved on the outer walls of the plurality of second guide plates (2011); a plurality of second guide sliders (2012) are fixedly connected to the inner wall of the lifting ring (204) at equal intervals in the circumferential direction; the outer walls of the plurality of second guide sliders (2012) are all hemispherical; and a second guide slot (213) for the second guide slider (2012) to slide is provided at the connection position between the limiting rotating drum (2014) and the second guide slider (2012).

6. A portable well water sampling device according to claim 4, characterized in that: The reset component is a torsion spring (2010) sleeved on the outer wall of the supporting rotating block (203), and the two end portions of the torsion spring (2010) are respectively integrally formed with end heads that penetrate into the interior of the limiting rotating disk (209) and the base (12), and the position where the limiting rotating disk (209), the base (12) and the end heads are connected is provided with a hole groove for inserting the end heads.

7. A portable well water sampling device according to claim 1, characterized in that: The docking mechanism comprises: A docking assembly arranged on the filter screen cylinder (11); The docking assembly comprises: a second docking ring (306) fixed on the outer wall of the filter screen cylinder (11); a first docking ring (304) is arranged on the upper surface of the second docking ring (306); the first docking ring (304) is fixedly connected to the outer wall of the motor water pump (10); a plurality of connection blocks (305) are fixedly connected to the bottom end of the first docking ring (304) at equal intervals in the circumferential direction; the plurality of connection blocks (305) all penetrate into the interior of the second docking ring (306); and the bottom ends of the plurality of connection blocks (305) are fixedly connected to a docking plug block. (301), the outer wall of the bottom end of the docking plug (301) is in a truncated cone shape, and the second docking ring (306) is provided with an arc-shaped slide groove (303) for the docking plug (301) and the connecting block (305) to slide at the connecting position of the docking plug (301) and the connecting block (305), and the second docking ring (306) is provided with a docking slot (302) for the docking plug (301) to slide up and down at one end of the arc-shaped slide groove (303), and the inner cavity of the docking slot (302) and the inner cavity of the arc-shaped slide groove (303) are mutually connected; A locking assembly is provided on the first docking ring (304).

8. A portable well water sampling device according to claim 7, characterized in that: The locking assembly is a bolt (307) arranged on the first docking ring (304); the bolt (307) penetrates the first docking ring (304) to the inside of the second docking ring (306); the bolt (307) is threadedly connected to the second docking ring (306).

9. A portable well water sampling device according to claim 1, characterized in that: One end of the winch (7) is fixedly connected to a fixed joint (15), the other end of the second steel hose (6) is fixedly connected to one end of the fixed joint (15), the outer wall of the fixed joint (15) is rotatably sleeved with a swivel joint (16), the inner wall of the swivel joint (16) is integrally formed with a second limiting ring, and a second limiting rotation groove for the second limiting ring to rotate is provided at a position where the fixed joint (15) and the second limiting ring meet. An electric high-pressure air compressor water pump (4) is provided on one side of the bracket (1), and a water inlet and a water outlet are symmetrically mounted on the electric high-pressure air compressor water pump (4). A first steel hose (5) is provided between the winch (7) and the electric high-pressure air compressor water pump (4), one end of the first steel hose (5) is fixedly connected to the water inlet of the electric high-pressure air compressor water pump (4) by a spiral buckle, and the other end of the first steel hose (5) is fixedly connected to the port of the second steel hose (6) by a spiral buckle.

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