A groundwater resource restoration device

Abstract

The present invention provides a groundwater resource repair device, which belongs to the field of groundwater management technology. In the groundwater resource repair device of the present invention, the feeding channel between the float and the drill pipe allows the repair feed to enter the space below the float. At the same time, after the drill bit enters the groundwater layer, the space below the float can also accommodate the groundwater that enters the inner cavity of the drill pipe through the flow channel, so that the groundwater and the repair feed can be directly mixed in the space below the float. Compared with the existing groundwater repair equipment that mixes the repair feed with flowing groundwater, the groundwater resource repair device of the present invention directly mixes the repair feed into the groundwater near the groundwater layer. On the one hand, as the amount of groundwater increases, the feeding efficiency of the repair feed is improved; on the other hand, as the feeding method is changed to one-time feeding, rather than the successive feeding adopted by the existing groundwater repair equipment, the mixing quality of the repair feed is higher.

Description

Technical Field

[0001] The invention relates to the technical field of groundwater treatment, and in particular to a groundwater resource repair device. Background Art

[0002] Some existing groundwater remediation equipment (such as CN114790016A) uses a drill bit to drill into the groundwater layer, extracts the groundwater through the drill bit to the discharge box on the ground, and then allows the groundwater to flow through the solid feed in the discharge box and then be discharged back to the groundwater layer, so as to achieve the delivery of remediation feed to the groundwater layer. However, due to the flow rate and flow velocity of the groundwater flowing through the discharge box, as well as the gradual dilution and shrinkage of the solid feed, the contact area with the groundwater will also gradually shrink, resulting in uneven mixing ratio of the remediation feed in the groundwater, which in turn reduces the efficiency of the groundwater layer being repaired and the quality of the repair is poor. Summary of the invention

[0003] In view of the above problems, the present invention provides a groundwater resource repair device, which can solve the problems of low repair efficiency and poor repair quality of existing groundwater repair equipment.

[0004] Specifically, the present invention provides a groundwater resource repair device, comprising:

[0005] A drilling mechanism, the drilling mechanism comprising a sleeve-shaped drill rod and a drill bit coaxially fixed at its lower end, a flow passage communicating with an inner cavity of the drill rod is defined on the drill bit, and a spiral groove extending in the axial direction and in a spiral shape is formed on the inner wall of the drill rod;

[0006] A feeding mechanism, the feeding mechanism comprising a float rotatably and slidably disposed in the drill rod, a feeding channel communicating with the inner cavity of the drill rod at upper and lower sides of the float is defined between the side wall of the float and the groove wall of the spiral groove, and a feeding driving sub-mechanism for pushing and pulling the float up and down is connected to the upper end of the float;

[0007] The feeding mechanism comprises a feeding bin arranged above the drill rod, and a discharge port for feeding materials into the space above the float is defined at the bottom of the feeding bin.

[0008] Preferably, a closed cavity, a radial hole and a connecting shaft are formed on the float in order from bottom to top, the radial hole is open at the side of the float, and a swing rod is telescopically and slidably arranged in the radial hole, and the outer end of the swing rod is configured to be slidably inserted in the spiral groove; the connecting shaft is integrally and coaxially formed at the upper end of the float; and:

[0009] The feeding drive sub-mechanism comprises:

[0010] A transmission rod, wherein a first sleeve portion is defined at the lower end of the transmission rod and is prevented from rotating and is slidably sleeved on the connecting shaft up and down, and a first spring is arranged in the first sleeve portion to abut against the upper end of the connecting shaft;

[0011] A feeding motor, wherein the output shaft of the feeding motor defines a second shaft sleeve portion which is fixed and slidably sleeved on the upper end of the transmission rod.

[0012] Preferably, the feeding mechanism further comprises:

[0013] The material balancing sub-mechanism is in the inner cavity of the drill pipe and is located between the feeding bin and the float, and comprises:

[0014] A lower material balancing plate, the lower material balancing plate is fixed and sleeved on the outer circumference of the transmission rod, the lower material balancing plate and the drill rod are rotatably matched; and the lower material balancing plate defines a lower material balancing opening that passes through from top to bottom and is spaced apart in the circumferential direction;

[0015] An upper material balancing plate is fixed on the drill rod and rotatably sleeved on the outer periphery of the transmission rod; and a plurality of upper material balancing holes are defined on the upper material balancing plate to cause the upper material balancing holes and the lower material balancing openings to be alternately opened and closed as the upper material balancing plate and the lower material balancing plate rotate relative to each other.

[0016] Preferably, the material balancing sub-mechanism further comprises:

[0017] A gland, the gland is rotatably and slidably sleeved on the transmission rod, and the gland is rotatably and connected to the drill rod with upper and lower limit positions;

[0018] A material control plate, which is rotatable and sleeved on the transmission rod with upper and lower limit positions, and is located between the pressure cover and the upper material distribution plate, and is provided with a telescopic tube which passes through the pressure cover upwards and is connected to the discharge port;

[0019] A second spring is provided, wherein the second spring is pressed between the pressure cover and the material control plate.

[0020] Preferably, the drill bit comprises:

[0021] A body, the body is connected to the lower end of the drill rod, the side surface and bottom surface of the bottom of the body are embedded with a plurality of composite sheets, a drilling cavity communicating with the inner cavity of the drill rod is defined therein, and a water inlet hole located between the composite sheets is defined on the side wall of the body;

[0022] A water gate mechanism comprises a water gate plate swingably connected to the inner wall of the drilling cavity, a torsion spring is arranged between the water gate plate and the body, and the torsion spring is used to press the water gate plate cover on the inner opening of the water inlet hole.

[0023] Preferably, the bottom wall of the body further defines water outlet holes located between the composite sheets, and a one-way valve for one-way water discharge to the outside of the drilling cavity is arranged in the water outlet holes.

[0024] Preferably, the groundwater resource repair device also includes:

[0025] A machine base, the machine base comprising a base located below the drill bit, an avoidance passage for the drill bit to pass through is defined on the base, and a side frame located on one side of the drill rod is also formed on the base; and:

[0026] The drilling mechanism also includes a lifting sub-mechanism, which includes a first lifting platform that is rotatable and upper and lower limited and sleeved on the outside of the drill rod, the first lifting platform is spirally connected to at least two screw rods extending up and down, and the screw rods are rotatably connected to the machine base; and a lifting motor is connected to the top of the side frame, and the lifting motor is connected to each of the screw rods by gear transmission to promote the synchronous rotation of each screw rod.

[0027] Preferably, the drilling mechanism further comprises:

[0028] A drilling motor is connected to the first lifting platform and is connected to the drill rod through gear transmission.

[0029] Preferably, the feeding mechanism also includes a second lifting platform, which is spirally connected to each of the screw rods, and the second lifting platform is located between the drilling motor and the lifting motor; and a feeding motor for driving the float to move up and down is connected to the second lifting platform.

[0030] Preferably, an air distribution ring is rotated outside the drill rod and is limited in upper and lower positions, and the air distribution ring is located between the feeding mechanism and the float, and an annular groove is provided on the inner ring of the air distribution ring, and the groove wall of the annular groove and the side wall of the drill rod form an annular cavity; and in the direction from outside to inside, the outer air channel defined on the side wall of the drill rod, the annular cavity, and the inner air channel defined on the side wall of the drill rod are connected in sequence.

[0031] The beneficial effects of the present invention are:

[0032] The feeding channel between the float and the drill pipe of the present invention enables the repair feed to enter the space below the float. At the same time, after the drill bit enters the groundwater layer, the space below the float can also accommodate the groundwater that enters the inner cavity of the drill pipe through the flow channel, so that the groundwater and the repair feed can be directly mixed in the space below the float. Compared with the existing groundwater repair equipment that uses flowing groundwater for repair feed mixing, the groundwater resource repair device of the present invention directly mixes the repair feed into the groundwater near the groundwater layer. On the one hand, as the amount of groundwater increases, the feeding efficiency of the repair feed is improved; on the other hand, as the feeding method is changed to one-time feeding, rather than the successive feeding used by the existing groundwater repair equipment, the mixing quality of the repair feed is higher. Therefore, the groundwater resource repair device of the present invention has the advantages of high feeding efficiency and good mixing quality. At the same time, the float can also be used as a piston to push the mixed water-material mixture back into the groundwater layer to achieve pressurized drainage, further increasing the mixing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0034] Figure 1 It is a schematic structural diagram of the groundwater resource repair device of the present invention;

[0035] Figure 2 yes Figure 1 The main view of

[0036] Figure 3 yes Figure 2 AA section view;

[0037] Figure 4 yes Figure 1 A top view of

[0038] Figure 5 yes Figure 4 BB cross-sectional view;

[0039] Figure 6 yes Figure 5 A partial enlarged view of point C;

[0040] Figure 7 yes Figure 5 A partial enlarged view of point D;

[0041] Figure 8 It is a schematic structural diagram of the blanking plate in the groundwater resource repair device of the present invention.

[0042] in:

[0043] 110, drill rod, 111, spiral groove, 120, drill bit, 121, body, 122, water gate plate, 123, water inlet hole, 124, water outlet hole, 130, first lifting platform, 140, screw rod, 150, lifting motor, 160, drilling motor;

[0044] 210, float, 211, connecting shaft, 212, swing rod, 221, transmission rod, 222, feeding motor, 223, first spring, 224, output shaft, 230, second lifting platform;

[0045] 310, feeding bin, 320, upper material balancing plate, 321, limiting hole, 322, upper material balancing hole, 330, lower material balancing plate, 331, connecting hole, 332, lower material balancing opening, 340, pressure cover, 350, material control plate, 360, second spring;

[0046] 410, base, 420, side frame;

[0047] 500. Air distribution ring. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0049] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention 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, and therefore cannot be understood as a limitation to the present invention.

[0050] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0051] like Figure 1 and Figure 2 , Figure 5 , Figure 7 As shown, a groundwater resource restoration device includes a drilling mechanism, a feeding mechanism and a feeding mechanism. The drilling mechanism includes a sleeve-shaped drill rod 110 and a drill bit 120 coaxially fixed at its lower end. A flow passage communicating with the inner cavity of the drill rod 110 is defined on the drill bit 120, and a spiral groove 111 extending axially and in a spiral shape is formed on the inner wall of the drill rod 110. The feeding mechanism includes a float 210 that is rotatable and slidable up and down in the drill rod 110, and a feeding channel connecting the inner cavity of the drill rod 110 on the upper and lower sides of the float 210 is defined between the side wall of the float 210 and the groove wall of the spiral groove 111, and the upper end of the float 210 is connected to a feeding drive sub-mechanism for pushing and pulling the float 210 up and down. The feeding mechanism includes a feeding bin 310 disposed above the drill rod 110, and a discharge port for feeding is defined at the bottom of the feeding bin 310. The flow passage may be one channel, or two channels provided with mutually reverse one-way mechanisms, or a cavity and a channel connected to each other.

[0052] In some embodiments, as the drill bit 120 drills into the groundwater layer, the groundwater enters the inner cavity of the drill rod 110 through the flow channel. In the inner cavity of the drill rod 110, the groundwater lifts the float 210 upward, so that the space below the float 210 is filled with groundwater; then, the user throws in the repair feed from the feeding mechanism, and these repair feeds fall into the inner cavity of the drill rod 110 from the discharge port, specifically, fall into the inner cavity space of the drill rod 110 above the float 210, and then the repair feed continues to pass through the feeding channel between the float 210 and the drill rod 110, and enters the groundwater below the float 210 to mix the repair feed. After a certain period of time, the feeding drive sub-mechanism pushes the float 210 downward, so that the groundwater below the float 210 is forced to be discharged from the flow channel and return to the groundwater layer, completing the delivery of the repair feed into the groundwater layer.

[0053] In these embodiments, the feed channel between the float 210 and the drill rod 110 allows the repair feed to enter the space below the float 210. At the same time, after the drill bit 120 enters the groundwater layer, the space below the float 210 can also accommodate the groundwater that enters the inner cavity of the drill rod 110 through the flow channel, so that the groundwater and the repair feed can be directly mixed in the space below the float 210. Compared with the existing groundwater remediation equipment that mixes the repair feed with flowing groundwater, the present invention directly mixes the repair feed into the groundwater near the groundwater layer, which improves the feeding efficiency of the repair feed on the one hand; on the other hand, the one-time feeding is adopted instead of the successive feeding adopted by the existing groundwater remediation equipment, so that the mixing quality of the repair feed is higher. Therefore, the present invention has the advantages of high feeding efficiency and good mixing quality. At the same time, the float 210 can also be used as a piston to push the mixed water-material mixture back into the groundwater layer to achieve pressurized drainage, further increasing the mixing efficiency.

[0054] In some preferred embodiments, Figure 5 , Figure 7 As shown, a closed cavity, a radial hole and a connecting shaft 211 are formed on the float 210 in sequence from bottom to top, the radial hole is open at the side of the float 210, and a swing rod 212 is telescopically and slidably arranged in the radial hole, and the outer end of the swing rod 212 is constructed to be slidably inserted in the spiral groove 111; the connecting shaft 211 is integrally and coaxially formed at the upper end of the float 210. The feeding drive sub-mechanism includes a transmission rod 221 and a feeding motor 222. A first shaft sleeve portion that is fixed and slidably sleeved on the connecting shaft 211 is defined at the lower end of the transmission rod 221, and a first spring 223 that abuts against the upper end of the connecting shaft 211 is provided in the first shaft sleeve portion. The output shaft 224 of the feeding motor 222 defines a second shaft sleeve portion that is fixed and slidably sleeved on the upper end of the transmission rod 221. During the process of the float 210 floating up, the first sleeve part and the second sleeve part can realize the expansion and contraction of the connecting shaft 211 and the transmission rod 221 in the up-down direction, providing a space for the floating and sinking of the float 210, that is, the float 210 can float up; at the same time, the inner walls of the first sleeve part and the second sleeve part can transmit the power output by the feeding motor 222 to the float 210 in a profile matching manner, providing the power required for the spiral descent of the float 210. As a further preferred embodiment, an inner ring platform can be formed at the lower end of the drill rod 110 to stop below the float 210, so as to limit the falling position of the float 210, thereby preventing the connecting shaft 211, the transmission rod 221 and the output shaft 224 from being disengaged from each other.

[0055] In some preferred embodiments, Figure 6 and Figure 8The feeding mechanism further includes a material balancing sub-mechanism, which is in the inner cavity of the drill rod 110 and is located between the feeding bin 310 and the float 210. The material balancing sub-mechanism includes an upper material balancing plate 320 and a lower material balancing plate 330. The lower material balancing plate 330 is fixed and sleeved on the outer periphery of the transmission rod 221 through a connecting hole 331, and the lower material balancing plate 330 and the drill rod 110 are rotatably matched; and the lower material balancing plate 330 defines a lower material balancing opening 332 that is through from top to bottom and spaced apart in the circumferential direction. The upper material balancing plate 320 is fixed on the drill rod 110, and is rotatably sleeved on the outer periphery of the transmission rod 221; and a plurality of upper material balancing holes 322 are defined on the upper material balancing plate 320, and as the upper material balancing plate 320 and the lower material balancing plate 330 rotate relative to each other, the upper material balancing holes 322 and the lower material balancing openings 332 are alternately opened and closed. A limit hole 321 connected to the drill rod 110 through an upper and lower limit pin is also provided on the side of the upper material balancing plate 320. The material balancing sub-mechanism not only spreads the repair material above it in a rotating manner, but also makes the repair material fall dispersedly above the float 210, so that the placement of the repair material is more uniform, and the quality of the mixing of the repair material and groundwater is further improved.

[0056] In some preferred embodiments, Figure 6 and Figure 8 The material balancing sub-mechanism further includes a pressure cover 340, a material control disc 350 and a second spring 360. The pressure cover 340 is rotatably and slidably sleeved on the transmission rod 221, and the pressure cover 340 is rotatably and connected to the drill rod 110 with upper and lower limit positions. The material control disc 350 is rotatably and upper and lower limit sleeved on the transmission rod 221, and is located between the pressure cover 340 and the upper material balancing disc 320, and a telescopic tube is arranged on it, which passes through the pressure cover 340 upward and connects to the discharge port. The second spring 360 abuts between the pressure cover 340 and the material control disc 350. After the float 210 falls to the lower limit position, the transmission rod 221 will drive the material control disc 350 to abut against the upper material balancing disc 320, reduce (or even close) the gap between the material control disc 350 and the upper material balancing disc 320, and prevent the repair feed from entering the upper part of the upper material balancing disc 320, thereby controlling the timing of the repair feed.

[0057] In some preferred embodiments, Figure 2 , Figure 3As shown, the drill bit 120 includes a body 121 and a water gate mechanism. The body 121 is connected to the lower end of the drill rod 110, and the side and bottom surfaces of the bottom thereof are embedded with a plurality of composite sheets, and a drilling cavity communicating with the inner cavity of the drill rod 110 is defined therein, and a water inlet hole 123 located between the composite sheets is defined on the side wall thereof. The water gate mechanism includes a water gate plate 122 swingably connected to the inner wall of the drilling cavity, and a torsion spring is arranged between the water gate plate 122 and the body 121, and the torsion spring is used to press the water gate plate 122 to cover the water inlet hole 123. Under the action of the torsion force, the water gate plate 122 prevents the water inlet hole 123 from opening, so that the internal space of the drill rod 110 and the drill bit 120 is closed, which is convenient for forming negative pressure in the internal space of the two to extract groundwater on the one hand; on the other hand, its large side area ensures that it can be opened even when the water pressure of the groundwater layer is low.

[0058] In some preferred embodiments, the bottom wall of the body 121 further defines a water outlet 124 located between the composite sheets, and a one-way valve for one-way drainage to the outside of the drilling cavity is disposed in the water outlet 124. The one-way valve further ensures that the mixed liquid in the internal space of the drill bit 120 and the drill rod 110 will not flow out before the float 210 compresses the mixed liquid of the groundwater and the repair material below it, thereby further improving the mixing quality of the repair material in the groundwater.

[0059] In some preferred embodiments, Figure 1 , Figure 2 and Figure 4 As shown, the groundwater resource repair device includes a machine base, which includes a base 410 located below the drill bit 120, and a evacuation channel for the drill bit 120 to pass through is defined on the base 410, and a side frame 420 located on one side of the drill rod 110 is formed on the base 410; and the drilling mechanism also includes a lifting sub-mechanism, which includes a first lifting platform 130 that is rotatable and sleeved outside the drill rod 110, and the first lifting platform 130 is spirally connected to at least two screw rods 140 extending up and down, and the screw rods 140 are rotatably connected to the machine base; and a lifting motor 150 is connected to the top of the side frame 420, and the lifting motor 150 is connected to each screw rod 140 by gear transmission to promote the synchronous rotation of each screw rod 140. The various functional mechanisms (drilling mechanism, feeding mechanism, feeding mechanism, etc.) of the groundwater resource repair device of the present invention are integrated on the machine base, thereby improving the integration level of the present invention, reducing the preparation time before operation, and further improving the efficiency of groundwater repair.

[0060] In some preferred embodiments, the drilling mechanism further includes a drilling motor 160, which is connected to the first lifting platform 130 and connected to the drill rod 110 by gear transmission. The drilling motor 160 is arranged on the first lifting platform 130 and drives the drill rod 110 by primary gear transmission, which shortens the power transmission route of the drill rod 110 and the drill bit 120 during the drilling operation, thereby reducing energy loss.

[0061] In some preferred embodiments, the feeding mechanism further includes a second lifting platform 230, which is connected to each screw rod 140 by a spiral transmission, and the second lifting platform 230 is located between the drilling motor 160 and the lifting motor 150; and a feeding motor 222 for driving the float 210 to move up and down is connected to the second lifting platform 230. The feeding motor 222 is lifted and lowered together with the second lifting platform 230, so that the feeding motor 222 can provide the float 210 with the power required for lifting and lowering at the position closest to the float 210, reducing the route required for power transmission and further reducing energy loss.

[0062] In some preferred embodiments, the drill rod 110 is rotated outward and sleeved with an air distribution ring 500 with upper and lower limit positions, and the air distribution ring 500 is located between the feeding mechanism and the float 210. An annular groove is provided on the inner ring of the air distribution ring 500, and the groove wall of the annular groove and the side wall of the drill rod 110 form an annular cavity; and in the direction from the outside to the inside, the outer air passage defined on the side wall of the drill rod 110, the annular cavity, and the inner air passage defined on the side wall of the drill rod 110 are sequentially connected. The gas entering the annular cavity from each inner air passage can be concentrated in an outer air passage and extracted, so that on the one hand, it is realized to extract gas from various places of the drill rod 110 and the extraction efficiency is accelerated; on the other hand, it is convenient to arrange the extraction pipeline and related power equipment, so that it is more convenient to extract gas from the drill rod 110, and it is more convenient for groundwater to enter the inner cavity of the drill rod 110 below the float 210.

[0063] In the initial state, the lower material averaging tray 330 is in close contact with the upper material averaging tray 320, and the repair material cannot fall between the lower material averaging tray 330 and the upper material averaging tray 320;

[0064] The drilling motor 160 drives the drill bit 120 to rotate, and the lifting motor 150 drives the drill rod 110 to descend until the drill bit 120 contacts the groundwater resource; then, air is pumped from the external airway to pump water into the drill rod 110, during which time the water gate plate 122 is pushed open; then, the float 210 floats up due to the buoyancy, compressing the first spring 223 and the second spring 360, and the control plate 350 moves upward, and according to the buoyancy of the water on the float 210, the amount of repair feed entering is adjusted, and then the repair feed is manually added to the feed bin 310, and the repair feed falls between the control plate 350 and the upper averaging plate 320 until the chamber between the upper averaging plate 320 and the control plate 350 is filled;

[0065] Then the drill rod 110 rotates, driving the upper material balancing plate 320 to rotate. The lower material balancing opening 332 of the lower material balancing plate 330 overlaps with the upper material balancing hole 322 of the upper material balancing plate 320 during the rotation process, and the repair material is sprinkled and falls into the water through the thread groove. This method of spraying medicine is slow, but it can make the repair material more dispersed. Slowly spreading medicine can also prevent the repair material from agglomerating in the water, thereby increasing mixing efficiency.

[0066] After that, the drill rod 110 stops rotating, the feed motor 222 drives the transmission rod 221 to rotate, the transmission rod 221 rotates to cause the swing rod 212 to be thrown out by centrifugal force, the swing rod 212 is inserted into the spiral groove 111 in the drill rod 110, and the float 210 moves downward to squeeze water out of the water outlet 124 of the drill bit 120;

[0067] After that, the float 210 moves to the bottom, and air is pumped out from the outer air channel of the drill pipe 110 again. The float 210 moves upward, and water is pumped out again to mix with the repair material remaining inside. Then the transmission rod 221 rotates, and the float 210 moves downward to drain water again. After multiple reciprocating cycles, the process of spraying and repairing water resources is completed. At this time, if the water pressure is high, gas can be introduced from the outer air channel of the drill pipe 110 during drainage to provide additional pressure to squeeze out the water.

[0068] In the present invention, an upper equalizing plate 320 and a lower equalizing plate 330 are provided to slowly and evenly sprinkle the repair feed so that the repair feed can be evenly mixed in the water. Secondly, the present invention sets a first spring 223 and a second spring 360 so that when the float 210 floats up, the compression amount of the second spring 360 limits the moving distance of the float 210, so that the amount of medicine fed can be adjusted, thereby controlling the mixing ratio of the repair feed. In the process of squeezing the repair feed from the lower equalizing plate 330, the float 210 rotates continuously to continuously stir and mix the repair feed solution to avoid precipitation of the repair feed. The present invention also provides an air distribution ring 500, which can firstly evacuate air and secondly provide additional pressure during drainage so that the repair feed can be better discharged.

[0069] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A groundwater resource repair device, characterized in that: include: A drilling mechanism, the drilling mechanism comprising a sleeve-shaped drill rod (110) and a drill bit (120) coaxially fixed at its lower end, a flow passage communicating with an inner cavity of the drill rod (110) being defined on the drill bit (120), and a spiral groove (111) extending in the axial direction and in a spiral shape being formed on the inner wall of the drill rod (110); A feeding mechanism, the feeding mechanism comprising a float (210) rotatably and slidably arranged in the drill rod (110), a feeding channel communicating with the inner cavity of the drill rod (110) at upper and lower sides of the float (210) is defined between the side wall of the float (210) and the groove wall of the spiral groove (111), and a feeding driving sub-mechanism for pushing and pulling the float (210) up and down is connected to the upper end of the float (210); A feeding mechanism, the feeding mechanism comprising a feeding bin (310) arranged above the drill rod (110), and a discharge port for feeding is defined at the bottom of the feeding bin (310); A closed cavity, a radial hole and a connecting shaft (211) are formed on the float (210) in order from bottom to top, the radial hole is open at the side of the float (210), and a swinging rod (212) is telescopically slidably arranged in the radial hole, and the outer end of the swinging rod (212) is configured to be slidably inserted in the spiral groove (111); the connecting shaft (211) is integrally and coaxially formed at the upper end of the float (210); as well as ： The feeding drive sub-mechanism comprises: A transmission rod (221), wherein a first shaft sleeve portion is defined at the lower end of the transmission rod (221) and is prevented from rotating and is slidably sleeved on the connecting shaft (211) in an up-and-down manner, and a first spring (223) is arranged in the first shaft sleeve portion and abuts against the upper end of the connecting shaft (211); A feeding motor (222), wherein the output shaft of the feeding motor (222) defines a second shaft sleeve portion that is non-rotatable and slidably sleeved on the upper end of the transmission rod (221); The feeding mechanism also includes: An upper material distribution plate (320), the upper material distribution plate (320) being fixed on the drill rod (110) and being rotatably sleeved on the outer periphery of the transmission rod (221); a material balancing sub-mechanism, the material balancing sub-mechanism being in the inner cavity of the drill rod (110) and being located between the feeding bin (310) and the float (210); The material balancing sub-mechanism also includes: A gland (340), the gland (340) being rotatably and slidably sleeved on the transmission rod (221), and the gland (340) being rotatably and upper and lower limitedly connected to the drill rod (110); A material control plate (350), the material control plate (350) being rotatable and sleeved on the transmission rod (221) with upper and lower limit positions, and being located between the pressure cover (340) and the upper material distribution plate (320), and having a telescopic tube disposed thereon that passes upward through the pressure cover (340) and is connected to the discharge port; A second spring (360), wherein the second spring (360) is pressed between the pressing cover (340) and the material control plate (350).

2. A groundwater resource repair device according to claim 1, characterized in that: The feeding mechanism also includes: a lower material balancing plate (330), the lower material balancing plate (330) being fixed and sleeved on the outer circumference of the transmission rod (221), the lower material balancing plate (330) and the drill rod (110) being rotatably matched; and the lower material balancing plate (330) defines lower material balancing openings (332) that are through-through from top to bottom and spaced apart in the circumferential direction; A plurality of upper material balancing holes (322) are defined on the upper material balancing plate (320) so as to cause the upper material balancing holes (322) and the lower material balancing openings (332) to be alternately opened and closed as the upper material balancing plate (320) and the lower material balancing plate (330) rotate relative to each other.

3. A groundwater resource repair device according to claim 1, characterized in that: The drill bit (120) comprises: A body (121), the body (121) being connected to the lower end of the drill rod (110), the side surface and the bottom surface of the body (121) being embedded with a plurality of composite sheets, and defining a drilling cavity in communication with the inner cavity of the drill rod (110), and defining water inlet holes (123) located between the composite sheets on the side wall; A water gate mechanism, the water gate mechanism comprising a water gate plate (122) swingably connected to the inner wall of the drilling cavity, a torsion spring being arranged between the water gate plate (122) and the body (121), the torsion spring being used for pressing the water gate plate (122) to cover the inner opening of the water inlet hole (123).

4. A groundwater resource repair device according to claim 3, characterized in that: The bottom wall of the body (121) further defines a water outlet hole (124) located between the composite sheets, and a one-way valve for one-way drainage to the outside of the drilling cavity is arranged in the water outlet hole (124).

5. The groundwater resource repair device according to claim 1, characterized in that: The device also includes: A machine base, the machine base comprising a base (410) located below the drill bit (120), an avoidance passage for allowing the drill bit (120) to pass through being defined on the base (410), and a side frame (420) located on one side of the drill rod (110) being formed on the base (410); and: The drilling mechanism further comprises a lifting sub-mechanism, the lifting sub-mechanism comprising a first lifting platform (130) which is rotatably sleeved on the outside of the drilling rod (110) and can be limited in upper and lower directions, the first lifting platform (130) being spirally connected to at least two screw rods (140) extending up and down, the screw rods (140) being rotatably connected to the machine base; and a lifting motor (150) being connected to the top of the side frame (420), the lifting motor (150) being connected to each of the screw rods (140) by gear transmission, so as to promote the synchronous rotation of each of the screw rods (140).

6. A groundwater resource repair device according to claim 5, characterized in that: The drilling mechanism also includes: A drilling motor (160), the drilling motor (160) is connected to the first lifting platform (130) and is connected to the drilling rod (110) via gear transmission.

7. A groundwater resource repair device according to claim 6, characterized in that: The feeding mechanism further comprises a second lifting platform (230), the second lifting platform (230) being connected to each of the screw rods (140) by a spiral transmission, and the second lifting platform (230) being located between the drilling motor (160) and the lifting motor (150); and a feeding motor (222) for driving the float (210) to move up and down is connected to the second lifting platform (230).

8. The groundwater resource repair device according to claim 1, characterized in that: The drill rod (110) is externally rotatably and sleeved with an air distribution ring (500) in an upper and lower limiting manner, and the air distribution ring (500) is located between the feeding mechanism and the float (210). An annular groove is provided on the inner ring of the air distribution ring (500), and the groove wall of the annular groove and the side wall of the drill rod (110) form an annular cavity; and in a direction from the outside to the inside, an outer air passage defined on the side wall of the drill rod (110), the annular cavity, and an inner air passage defined on the side wall of the drill rod (110) are sequentially communicated.

Images