CN115306349A

CN115306349A - Impact type oil drain device with sand blocking prevention function

Info

Publication number: CN115306349A
Application number: CN202211047273.2A
Authority: CN
Inventors: 王朝俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-08

Abstract

The invention relates to the field of oil field downhole tools, in particular to an impact type oil drain device with a sand blocking prevention function. The resistance of the collected sand and oil to the sucker rod and the friction force between the sucker rod and the oil pipe can cause the sucker rod to impact the pin, thereby influencing the technical problem of normal oil drainage. The technical scheme is as follows: an impact type oil drain device with a sand blocking prevention function comprises a first shell; the lower part of the first shell is connected with the setting device, the two third shells are clasped on the first shell, the first shell and the two third shells are rotatably connected, and the first shell is provided with an oil drainage mechanism. The oil drainage mechanism ensures normal oil drainage, avoids the situation that four tension springs lose elasticity when oil drainage is needed, cannot ensure normal oil drainage work, and simultaneously avoids influencing normal production.

Description

Impact type oil drain device with sand blocking prevention function

Technical Field

The invention relates to the field of oil field downhole tools, in particular to an impact type oil drain device with a sand blocking prevention function.

Background

When the pump under the oil well needs to be overhauled, the oil pipe needs to be lifted to lift the pump out, if oil in the oil pipe is not discharged at the moment, the oil in the oil pipe is brought to the ground to pollute the environment in the process of lifting the oil pipe, a lot of operation inconvenience is brought to workers, and the operation progress is influenced.

In order to ensure the quick completion of maintenance work, the oil drainer is installed above the pump, wherein the impact type oil drainer is widely applied, the impact type oil drainer puts a sucker rod into an oil pipe, the pin is broken by means of inertia impact of the sucker rod, the oil drainage purpose is realized, however, in the oil collection process, sand stones can enter the oil pipe along with the oil, the sand stones gathered and the friction force of the oil to the sucker rod and the friction force between the sucker rod and the oil pipe can all make the sucker rod unable to impact the pin, and therefore normal oil drainage is influenced.

Disclosure of Invention

The invention provides an impact type oil drain device with a sand blocking prevention function, and aims to solve the technical problem that the resistance of aggregated sand and oil to a sucker rod and the friction force between the sucker rod and an oil pipe can cause the sucker rod not to impact a pin, so that normal oil drainage is influenced.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides an impact-type bleeder with sand prevention card function, including first casing, the lower part and the setting device of first casing are connected, open in the middle part circumference of first casing has the first draining port of a plurality of, open in the lower part circumference of first casing has a plurality of second draining port, it is connected with the second casing to rotate on the first casing, the upper portion and the oil pipe of second casing are connected, be equipped with two third casings of embracing the knot on it on the first casing, two third casings pass through bolted connection, first casing and two third casings rotate to be connected, be equipped with draining mechanism on the first casing, draining mechanism and first casing are connected, draining mechanism is used for normal production and normal draining, be equipped with oil drainage mechanism on the first casing, oil drainage mechanism is used for discharging the fluid in the oil pipe, draining mechanism discharges the fluid in the oil pipe to the oil drainage mechanism, oil drainage mechanism discharges the fluid in the oil pipe, avoid because of the unable draining of sand card.

Further, draining mechanism is including first carriage, first carriage sliding connection is on the second casing, first carriage and first casing threaded connection, it is connected with first sliding plate to rotate on the first carriage, sliding connection has the second sliding plate on the first casing, it has a plurality of hole to open on the second sliding plate, the last side circumference rigid coupling of second sliding plate has the first dead lever of a plurality of, the downside circumference rigid coupling of first sliding plate has a plurality of second dead lever, a plurality of second dead lever respectively with adjacent first dead lever sliding connection, equal rigid coupling has the extension spring between a plurality of second dead lever and the adjacent first dead lever, be equipped with draining seal assembly on the first casing, draining seal assembly is used for normal production, be equipped with the supporting component on the draining seal assembly, the supporting component is used for supporting draining seal assembly, be equipped with unblock subassembly on the first sliding plate, unblock subassembly is used for normal draining.

Further, draining seal assembly is including first mount, first mount is equipped with a plurality of, the equal circumference rigid coupling of the first mount of a plurality of in the upper portion of first casing, equal sliding connection has the gag lever post in the first mount of a plurality of, the equal sliding connection in inside of two third casings has a plurality of second carriage, a plurality of second carriage respectively with adjacent gag lever post sliding connection, equal sliding connection has the sliding block on a plurality of gag lever post, the equal rigid coupling in inboard of a plurality of sliding block has first jam piece, the first jam piece of a plurality of is located adjacent first draining mouth respectively.

Furthermore, a plurality of holes of the second sliding plate are respectively matched with the adjacent limiting rods and used for the second sliding plate to impact a plurality of first plugging blocks.

Further, the supporting component comprises a first rotating rod, the first rotating rod is provided with a plurality of rotating rods, the first rotating rods of the plurality of rotating rods are respectively connected in the adjacent second sliding frames in a rotating mode, the first rotating rods of the plurality of rotating rods are respectively connected with the adjacent sliding blocks in a threaded mode, the first fixing frames of the plurality of rotating rods are respectively connected with the second rotating rods in a rotating mode, and the second rotating rods are respectively connected with the adjacent limiting rods in a threaded mode.

Further, the unblock subassembly is including one-way gear, and one-way gear is equipped with a plurality of, and on a plurality of one-way gear located adjacent first bull stick respectively, equal rigid coupling had first gear on a plurality of second bull stick, and circumference rigid coupling has a plurality of pinion rack on the first sliding plate, a plurality of pinion rack respectively with adjacent one-way gear and first gear engagement.

Further, the oil extraction mechanism is including the third bull stick, the third bull stick rotates to be connected on first casing, the rigid coupling has the drive fan on the third bull stick, the rigid coupling has first bevel gear on the third bull stick, first bevel gear is located the rear side of drive fan, it is connected with second bevel gear to rotate on the first casing, second bevel gear and first bevel gear meshing, the rigid coupling has the second gear on the second bevel gear, all be equipped with oil extraction seal assembly in every second draining port, oil extraction seal assembly prevents that external liquid from getting into, be equipped with on the second bevel gear and prevent stifled oil extraction assembly, prevent stifled oil extraction assembly and be used for preventing the sediment deposit in the oil pipe liquid.

The oil discharge sealing assembly comprises a second fixing frame, the second fixing frame is provided with a plurality of second fixing frames, the plurality of second fixing frames are fixedly connected in adjacent second oil drainage openings respectively, the plurality of second fixing frames are connected with fourth rotating rods in a rotating mode, third gears are fixedly connected on the fourth rotating rods respectively, the third gears are meshed with the second gears respectively, third fixing frames are fixedly connected in the second oil drainage openings respectively, the third fixing frames are located on the lower sides of the adjacent second fixing frames respectively, fifth rotating rods are in threaded connection on the third fixing frames respectively, the fifth rotating rods are in splined sliding connection with the adjacent fourth rotating rods respectively, the lower ends of the fifth rotating rods are fixedly connected with second plugging blocks respectively, limiting plates are fixedly connected on the fifth rotating rods respectively, and the limiting plates are located on the upper sides of threads on the adjacent fifth rotating rods respectively.

Further, all be equipped with the sealing washer on a plurality of first jam piece and the second jam piece for sealed the preventing reveals.

Further, prevent stifled oil extraction subassembly is equipped with a plurality of including first flabellum, the equal circumference rigid coupling of the first flabellum of a plurality of on the lateral wall of second bevel gear, and the first flabellum of a plurality of all is located the upside of second gear, and equal rigid coupling has a plurality of second flabellum on every fifth bull stick.

As can be appreciated by those skilled in the art, the present invention has at least the following benefits: the oil drainage mechanism is matched with the oil drainage mechanism, so that the oil drainage device can be normally started and drained; through the oil drainage mechanism, the four second fixing rods are driven by the second shell to respectively stretch the adjacent tension springs, so that the four tension springs are not in a tightened state when oil drainage is not needed, the situation that the four tension springs lose elasticity and normal oil drainage work cannot be guaranteed when oil drainage is needed is avoided, the four first rotating rods are in threaded fit with the adjacent sliding blocks to limit and support the adjacent first blocking blocks, and the situation that the four first blocking blocks do not block the adjacent first oil drainage ports under the pressure action of oil in an oil pipe to influence normal production is avoided during normal production; through the oil extraction mechanism, utilize four stifled chock blocks up adjacent second draining port, avoid four second draining ports of external impurity jam, cause unable discharge of fluid, lead to the draining failure, utilize the first flabellum of a plurality of on the second bevel gear drive to rotate, scrape the grit in the fluid with first draining port and move to four second draining ports in, avoid the grit in the fluid deposit on the second draining port, influence the drainage of fluid, utilize four fifth bull sticks to drive a plurality of second flabellum antiport on it respectively, stir fluid, accelerate the drainage rate of fluid.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the oil drainage mechanism of the present invention.

Fig. 3 is a schematic perspective view of a first fixing rod of the oil drainage mechanism of the present invention.

Fig. 4 is a schematic view of a tension spring of the oil drainage mechanism of the invention.

Fig. 5 is a schematic perspective view of a second sliding frame of the oil drainage mechanism of the present invention.

Fig. 6 is a schematic view of a toothed plate three-dimensional structure of the oil drainage mechanism.

Fig. 7 is a schematic perspective view of the oil discharge mechanism of the present invention.

Fig. 8 is an enlarged perspective view of the present invention at a.

In the figure: 101-a first housing, 1011-a first oil drain, 1012-a second oil drain, 102-a second housing, 103-a third housing, 201-a first sliding frame, 202-a first sliding plate, 203-a second sliding plate, 204-a first fixing rod, 205-a second fixing rod, 206-a tension spring, 207-a first fixing frame, 208-a limiting rod, 209-a second sliding frame, 210-a sliding block, 211-a first blocking block, 212-a first rotating rod, 213-a second rotating rod, 214-a one-way gear, 215-a first gear, 216-a toothed plate, 301-a third rotating rod, 302-a driving fan, 303-a first bevel gear, 304-a second bevel gear, 305-a second gear, 306-a second fixing frame, 307-a fourth rotating rod, 308-a third gear, 309-a third fixing frame, 310-a fifth rotating rod, 311-a second blocking block, 312-a limiting plate, 313-a first fan blade, 314-a second fan blade.

Detailed Description

Exemplary embodiments will now be described in detail, with reference to the orientation of FIG. 1 for an example. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

Example 1

An impact type oil drain device with a sand blocking prevention function comprises a first shell 101, wherein the lower portion of the first shell 101 is connected with a setting device, the setting device is used for fixing the first shell 101, four first oil drain ports 1011 are formed in the circumferential direction of the middle portion of the first shell 101, four second oil drain ports 1012 are formed in the circumferential direction of the lower portion of the first shell 101, the second shell 102 is rotatably connected to the first shell 101, the upper portion of the second shell 102 is connected with an oil pipe, two third shells 103 buckled on the first shell 101 are arranged on the first shell 101, the two third shells 103 are connected through bolts, the first shell 101 is rotatably connected with the two third shells 103, external impurities are prevented from influencing the operation of the impact type oil drain device, an oil drain mechanism is arranged on the first shell 101 and connected with the first shell 101, the oil drain mechanism is used for normal production and normal oil drain, an oil drain mechanism is arranged on the first shell 101 and is used for draining oil liquid in the oil pipe, the oil pipe drives the second shell 102 to rotate, so as to drive the oil drain mechanism to operate normally, and to prevent the oil drain mechanism from being blocked when the oil drain mechanism operates normally, and the oil drain mechanism cannot operate.

Before using the invention, a worker connects the lower part of the first shell 101 with a setting device, connects the upper part of the second shell 102 with an oil pipe, clasps the two third shells 103 on the first shell 101, fixes the two third shells 103 through bolts, puts the invention into a casing through the oil pipe, and starts the setting device after putting the invention to a specified position, so as to fix the first shell 101 in the casing.

When needing the draining, the staff rotates oil pipe, and oil pipe drives draining mechanism work through second casing 102, and first draining port 1011 is not blockked up in draining mechanism work, and oil liquid in the oil pipe is discharged and is strikeed oil discharge mechanism through first draining port 1011, and oil discharge mechanism receives and does not block up second draining port 1012 in the work of strikeing back, and oil liquid is discharged through second draining port 1012.

And after the oil in the oil pipe is discharged, the operator unseals the setting device, lifts the oil pipe out, resets the lifted-out oil pipe to the initial state through the operator, and is convenient for the next use.

Example 2

On the basis of embodiment 1, as shown in fig. 2 to 6, the oil drainage mechanism includes a first carriage 201, the first carriage 201 is slidably connected to the second housing 102, the first carriage 201 is in threaded connection with the first housing 101, the first carriage 201 is rotatably connected to a first sliding plate 202, the first housing 101 is slidably connected to a second sliding plate 203, the second sliding plate 203 is provided with a plurality of holes, four first fixing rods 204 are circumferentially welded to an upper side of the second sliding plate 203, four second fixing rods 205 are circumferentially welded to a lower side of the first sliding plate 202, the four second fixing rods 205 are respectively slidably connected to adjacent first fixing rods 204, tension springs 206 are fixedly connected between the four second fixing rods 205 and the adjacent first fixing rods 204, the four second fixing rods 205 are driven by the second housing 102 to respectively stretch the adjacent tension springs 206, so that the four tension springs 206 are not in a tightened state when oil drainage is not required, and it is avoided that when oil drainage is required, the four tension springs 206 are elastic and cannot guarantee normal oil drainage operation, a sealing component is provided on the first housing 101, the oil drainage sealing component is used for normal production, and the oil drainage sealing component is supported, and the oil drainage sealing component is unlocked and used for unlocking the oil drainage sealing component.

As shown in fig. 2 to 6, the oil drainage sealing assembly includes a first fixing frame 207, four first fixing frames 207 are provided, four first fixing frames 207 are circumferentially welded on the upper portion of the first housing 101, four first fixing frames 207 are respectively and slidably connected with a limit rod 208, a plurality of holes of the second sliding plate 203 are respectively matched with adjacent limit rods 208 for opening a first oil drainage port 1011 to complete oil drainage work, two third housings 103 are respectively and slidably connected with four second sliding frames 209, four second sliding frames 209 are respectively and slidably connected with adjacent limit rods 208, four limit rods 208 are respectively and slidably connected with sliding blocks 210, four sliding blocks 210 are respectively welded on the inner sides of the four sliding blocks 210, a first blocking block 211 for blocking the first oil drainage port 1011 is welded on the inner side of the four sliding blocks 210, four first blocking blocks 211 are respectively located in adjacent first oil drainage ports 1011, four first blocking blocks 211 are respectively provided with sealing rings on the four first blocking blocks 211, for sealing and preventing leakage, the supporting assembly includes four first rotating rods 212, four first rotating rods 212 are respectively connected with four first rotating blocks 212, four first rotating rods 212 are rotatably connected with adjacent sliding blocks 215 in adjacent first sliding blocks 215, four rotating gears 213 are respectively connected with adjacent sliding blocks 213, four rotating gears 213 are respectively connected with adjacent sliding blocks 213, when normal production is carried out, the four first blocking blocks 211 do not block the adjacent first oil drainage port 1011 any more under the pressure action of oil in the oil pipe, so that the normal production is influenced.

As shown in fig. 7-8, the oil discharging mechanism includes a third rotating rod 301, the third rotating rod 301 is rotatably connected to the first casing 101, a driving fan 302 is welded on the third rotating rod 301, a first bevel gear 303 is connected to the third rotating rod 301 in a key manner, the first bevel gear 303 is located at the rear side of the driving fan 302, a second bevel gear 304 is connected to the first casing 101 in a rotating manner, the second bevel gear 304 is meshed with the first bevel gear 303, a second gear 305 is connected to the second bevel gear 304 in a key manner, an oil discharging sealing component is arranged in each second oil drain 1012 and prevents external liquid from entering, an anti-blocking oil discharging component is arranged on the second bevel gear 304 and is used for preventing sediment deposition in the oil pipe liquid, the driving fan 302 is impacted by oil in the oil pipe, and the anti-blocking oil discharging sealing component and the oil discharging component operate to prevent the second oil drain 1012 from being blocked by external or impurities contained in the oil pipe when oil is drained.

The oil discharge sealing assembly comprises second fixing frames 306, the number of the second fixing frames 306 is four, the four second fixing frames 306 are welded in adjacent second oil drainage ports 1012 respectively, the four second fixing frames 306 are connected with fourth rotating rods 307 in a rotating mode, third gears 308 are connected to the four fourth rotating rods 307 in a key mode, the four third gears 308 are meshed with the second gears 305 respectively, third fixing frames 309 are welded in the four second oil drainage ports 1012 respectively, the four third fixing frames 309 are located on the lower sides of the adjacent second fixing frames 306 respectively, fifth rotating rods 310 are connected to the four third fixing frames 309 in a threaded mode respectively, the four fifth rotating rods 310 are connected with the adjacent fourth rotating rods 307 in a sliding mode through splines respectively, second blocking blocks 311 are welded at the lower ends of the four fifth rotating rods 310, sealing rings used for sealing are arranged on the four second blocking blocks 311, the four second blocking blocks 311 block the adjacent second oil drainage ports 1012, blocking of the four second oil drainage ports by external impurities is avoided, oil cannot be discharged, oil is caused, the four fifth rotating rods 310 fail, limiting plates 312 are welded on the four fifth rotating rods 312, and limiting plates 312 are located on the adjacent limiting plates 312 respectively.

As shown in fig. 7-8, prevent stifled oil extraction subassembly including first flabellum 313, first flabellum 313 is equipped with a plurality of, the equal circumference of the first flabellum 313 of a plurality of welds on the lateral wall of second bevel gear 304, the first flabellum 313 of a plurality of all is located the upside of second gear 305, drive the first flabellum 313 of a plurality of on it to rotate through second bevel gear 304, the first flabellum 313 of a plurality of rotates scrapes the grit in the oil with first oil drainage mouth 1011 and moves to four second oil drainage mouths 1012 in, avoid the grit in the oil to deposit on second oil drainage mouth 1012, influence the drainage of oil, all weld a plurality of second flabellum 314 on every fifth bull stick 310, drive a plurality of second flabellum 314 antiport on it respectively through four fifth bull sticks 310, stir oil, accelerate the drainage speed of oil.

Before using the invention, a worker connects the lower part of the first shell 101 with the setting device, connects the upper part of the second shell 102 with the oil pipe, clasps the two third shells 103 on the first shell 101, fixes the two third shells 103 through bolts, and at the moment, the four tension springs 206 are in a normal state, and puts the invention into a casing through the oil pipe, and after putting the invention into a specified position, starts the setting device to fix the first shell 101 into the casing.

When oil drainage is needed, a worker rotates an oil pipe, the oil pipe drives the first sliding frame 201 to rotate through the second shell 102, the first sliding frame 201 rotates to move upwards under the action of the threads on the first shell 101, the first sliding frame 201 drives the four second fixing rods 205 to move upwards through the first sliding plate 202, the four second fixing rods 205 move upwards to stretch the adjacent tension springs 206 respectively, the four tension springs 206 are stretched to generate corresponding acting forces respectively, the four second fixing rods 205 are driven by the second shell 102 to stretch the adjacent tension springs 206 respectively, the four tension springs 206 are not in a tightened state when oil drainage is not needed, and the situation that when oil drainage is needed, the four tension springs 206 lose elasticity, and normal production work cannot be guaranteed is avoided.

In the process, the first sliding frame 201 drives the four toothed plates 216 to move upwards through the first sliding plate 202, the four toothed plates 216 move upwards to respectively drive the adjacent one-way gears 214 and the first gears 215 to rotate, because the one-way gears 214 are counterclockwise rotating gears, the four one-way gears 214 respectively drive the adjacent first rotating rods 212 to rotate, the four first gears 215 respectively drive the adjacent second rotating rods 213 to rotate, the four first rotating rods 212 respectively drive the adjacent sliding blocks 210 to move outwards, the four limiting rods 208 are respectively matched with the adjacent second rotating rods 213 to drive the adjacent limiting rods 208 to move outwards, the four first rotating rods 212 and the adjacent sliding blocks 210 are in threaded fit to limit and support the adjacent first blocking blocks 211, and when normal production is performed, the four first blocking blocks 211 do not block the adjacent first oil drainage ports 1011 under the pressure action of oil in the oil pipe, and normal production is affected.

In the process, the four sliding blocks 210 respectively drive the adjacent first blocking blocks 211 to move outwards, until the four first blocking blocks 211 do not block the adjacent first oil drainage openings 1011 any more, the worker does not rotate the oil pipe any more, the first sliding frame 201 does not move upwards any more, and the four limiting rods 208 do not limit the position of the second sliding plate 203 any more at this time, under the action of the four tension springs 206, the four first fixing rods 204 drive the second sliding plate 203 to move upwards, the second sliding plate 203 moves upwards to drive the four first blocking blocks 211, the four sliding blocks 210 and the four second sliding frames 209 to move upwards, so that oil drainage of the four sliding blocks 210 is completed, and the oil drainage device can be reused by resetting the worker.

In the process, when the four first blocking blocks 211 do not block the adjacent first oil drainage ports 1011 any more, oil in the oil pipe is discharged through the four first oil drainage ports 1011 and impacts the driving fan 302, the driving fan 302 drives the second bevel gear 304 to rotate through the third rotating rod 301 and the first bevel gear 303, the second bevel gear 304 drives the four fourth rotating rods 307 to rotate reversely through the second gear 305 and the four third gears 308, the four fourth rotating rods 307 respectively drive the adjacent fifth rotating rods 310 to rotate reversely, under the action of the threads of the four third fixing frames 309, the four fifth rotating rods 310 respectively drive the adjacent second blocking blocks 311 to move downwards until the four fifth rotating rods 310 lose threaded fit with the adjacent third fixing frames 309 respectively, the four second blocking blocks 311 move downwards to unblock the adjacent second oil drainage ports 1012, the oil is discharged through the four second oil drainage ports 1012, and the adjacent second oil drainage ports 1012 are blocked by the four second blocking blocks 311, so that the oil cannot be discharged and cause failure.

In the process, the second bevel gear 304 drives the first fan blades 313 to rotate, the first fan blades 313 rotate to scrape sand in the oil discharged from the first oil discharge port 1011 into the four second oil discharge ports 1012, and the sand in the oil is prevented from being deposited on the second oil discharge ports 1012 to influence the drainage of the oil.

In the above process, four fifth bull sticks 310 drive a plurality of second flabellum 314 antiport on it respectively, stir fluid, accelerate the excretion rate of fluid, after four fifth bull sticks 310 lose screw-thread fit with adjacent third mount 309 respectively, under the effect of gravity, four fifth bull sticks 310 all move down, until limiting plate 312 and adjacent third mount 309 side contact, four fifth bull sticks 310 still with adjacent fourth bull stick 307 spline fit this moment, make a plurality of second flabellum 314 still be in the rotation state, accelerate the excretion rate of fluid.

After the oil in the oil pipe is discharged, the worker unlocks the setting device, lifts the oil pipe out, resets the lifted oil pipe to the initial state through the worker, and facilitates the next use.

The above description is only a preferred embodiment of the present invention and should not be taken as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an impact formula bleeder with sand control card function, including first casing (101), the lower part and the setting device of first casing (101) are connected, the middle part circumference of first casing (101) is opened there are first draining port of a plurality of (1011), the lower part circumference of first casing (101) is opened there are a plurality of second draining port (1012), it is connected with second casing (102) to rotate on first casing (101), the upper portion and the oil pipe of second casing (102) are connected, be equipped with two third casings (103) of embracing the knot on it on first casing (101), two third casings (103) are through bolted connection, first casing (101) and two third casings (103) rotate and connect, characterized by: still including draining mechanism, on first casing (101) was located to draining mechanism, draining mechanism and first casing (101) were connected, and draining mechanism is used for normal production and normal draining, is equipped with oil extraction mechanism on first casing (101), and oil extraction mechanism is used for discharging the fluid in the oil pipe, and in draining mechanism discharged the fluid in the oil pipe to oil extraction mechanism, oil extraction mechanism discharged the fluid in the oil pipe, avoided because of the unable draining of sand card.

2. The impact type oil drain device with the sand blocking prevention function as claimed in claim 1 is characterized in that: the oil drainage mechanism comprises a first sliding frame (201), the first sliding frame (201) is connected to the second shell (102) in a sliding mode, the first sliding frame (201) is connected with the first shell (101) in a threaded mode, a first sliding plate (202) is connected to the first sliding frame (201) in a rotating mode, a second sliding plate (203) is connected to the first shell (101) in a sliding mode, a plurality of holes are formed in the second sliding plate (203), a plurality of first fixing rods (204) are fixedly connected to the upper side face of the second sliding plate (203) in a circumferential mode, a plurality of second fixing rods (205) are fixedly connected to the lower side face of the first sliding plate (202) in a circumferential mode, the plurality of second fixing rods (205) are connected with the adjacent first fixing rods (204) in a sliding mode respectively, tension springs (206) are fixedly connected between the plurality of second fixing rods (205) and the adjacent first fixing rods (204), an oil drainage sealing assembly is arranged on the first shell (101), the oil drainage sealing assembly is used for normal production, a supporting assembly is arranged on the oil drainage sealing assembly, the supporting assembly is used for supporting the oil drainage sealing assembly, an unlocking assembly, and an unlocking assembly is used for normal production.

3. The impact type oil drain device with the sand blocking prevention function as claimed in claim 2 is characterized in that: draining seal assembly is including first mount (207), first mount (207) are equipped with a plurality of, the equal circumference rigid coupling of the first mount of a plurality of (207) in the upper portion of first casing (101), equal sliding connection has gag lever post (208) in the first mount of a plurality of (207), the equal sliding connection in inside of two third casings (103) has a plurality of second carriage (209), a plurality of second carriage (209) respectively with adjacent gag lever post (208) sliding connection, equal sliding connection has sliding block (210) on a plurality of gag lever post (208), the equal rigid coupling in inboard of a plurality of sliding block (210) has first jam piece (211), the first jam piece of a plurality of (211) is located adjacent first draining mouth (1011) respectively.

4. The impact type oil drain device with the sand blocking prevention function as claimed in claim 3 is characterized in that: the plurality of holes of the second sliding plate (203) are respectively matched with the adjacent limiting rods (208) and used for the second sliding plate (203) to impact the plurality of first blocking blocks (211).

5. The impact type oil drain device with the sand blocking prevention function as claimed in claim 3 is characterized in that: the supporting component comprises a first rotating rod (212), the first rotating rod (212) is provided with a plurality of rotating rods, the first rotating rods (212) are respectively connected in the adjacent second sliding frames (209) in a rotating mode, the first rotating rods (212) are respectively in threaded connection with the adjacent sliding blocks (210), the first fixing frames (207) are respectively connected with second rotating rods (213) in a rotating mode, and the second rotating rods (213) are respectively in threaded connection with the adjacent limiting rods (208).

6. The impact type oil drain device with the sand blocking prevention function as claimed in claim 5 is characterized in that: the unlocking assembly comprises a one-way gear (214), the one-way gear (214) is provided with a plurality of gears, the one-way gears (214) are respectively arranged on adjacent first rotating rods (212), the second rotating rods (213) are respectively fixedly connected with first gears (215), a plurality of toothed plates (216) are fixedly connected to the first sliding plate (202) in the circumferential direction, and the toothed plates (216) are respectively meshed with the adjacent one-way gears (214) and the first gears (215).

7. The impact type oil drain device with the sand blocking prevention function as claimed in claim 2 is characterized in that: oil discharge mechanism is including third bull stick (301), third bull stick (301) are rotated and are connected on first casing (101), the rigid coupling has drive fan (302) on third bull stick (301), the rigid coupling has first bevel gear (303) on third bull stick (301), first bevel gear (303) are located the rear side of drive fan (302), it is connected with second bevel gear (304) to rotate on first casing (101), second bevel gear (304) and first bevel gear (303) meshing, the rigid coupling has second gear (305) on second bevel gear (304), all be equipped with oil extraction seal assembly in every second draining port (1012), oil extraction seal assembly prevents that external liquid from getting into, be equipped with on second bevel gear (304) and prevent stifled oil extraction subassembly, prevent stifled oil extraction subassembly and be used for preventing the silt deposit in the oil pipe liquid.

8. The impact type oil drain device with the sand blocking prevention function as claimed in claim 7 is characterized in that: the oil discharge sealing assembly comprises a second fixing frame (306), the second fixing frame (306) is provided with a plurality of fixing frames, the second fixing frames (306) are respectively and fixedly connected in adjacent second oil drainage ports (1012), the second fixing frames (306) are respectively and rotatably connected with fourth rotating rods (307), the fourth rotating rods (307) are respectively and fixedly connected with third gears (308), the third gears (308) are respectively engaged with the second gears (305), the second oil drainage ports (1012) are respectively and fixedly connected with third fixing frames (309), the third fixing frames (309) are respectively located on the lower sides of the adjacent second fixing frames (306), the third fixing frames (309) are respectively and fixedly connected with fifth rotating rods (310), the fifth rotating rods (310) are respectively and slidably connected with the adjacent fourth rotating rods (307) through splines, the lower ends of the fifth rotating rods (310) are respectively and fixedly connected with second blocking blocks (311), the fifth rotating rods (310) are respectively and fixedly connected with upper sides of adjacent limiting plates (312).

9. An oil drainer with sand prevention function as claimed in claim 8, wherein the first plugging blocks (211) and the second plugging blocks (311) are provided with sealing rings for sealing and preventing leakage.

10. The impact type oil drain device with the sand blocking prevention function as claimed in claim 8 is characterized in that: prevent stifled oil extraction subassembly including first flabellum (313), first flabellum (313) are equipped with a plurality of, the equal circumference rigid coupling of a plurality of first flabellum (313) on the lateral wall of second bevel gear (304), and a plurality of first flabellum (313) all are located the upside of second gear (305), and equal rigid coupling has a plurality of second flabellum (314) on every fifth bull stick (310).