CN219219070U

CN219219070U - Novel cofferdam for oil field

Info

Publication number: CN219219070U
Application number: CN202320081883.8U
Authority: CN
Inventors: 李永斌; 李强; 李福忠; 尹妍; 王国强; 赵明春; 王磊; 杨俊峰; 薛鑫; 王鑫
Original assignee: Liaoning Liaohe Oil Field Guangyuan Group Co ltd
Current assignee: Liaoning Liaohe Oil Field Guangyuan Group Co ltd
Priority date: 2023-01-27
Filing date: 2023-01-27
Publication date: 2023-06-20
Anticipated expiration: 2033-01-27

Abstract

The utility model discloses a novel cofferdam for an oil field, which comprises a plurality of stable seat boards, wherein the top of each stable seat board is hinged with a surrounding baffle. This novel cofferdam is used in oil field inserts in the soil through a plurality of bolt locating pegs and a plurality of oblique inserted nails under the push plate to guarantee that the surrounding board is fixed more stable effect, the rethread drives the oblique top section of thick bamboo and inserts a section of thick bamboo and take place flexible displacement, make the L type fixture block that its oblique top section of thick bamboo top set up insert in the draw-in groove of contradicting locking piece, provide the bracing to its surrounding board through oblique top section of thick bamboo and insert a section of thick bamboo, guarantee the compressive strength of surrounding board then, the rethread adjusts the continuation rotation of section of thick bamboo, make it utilize the angle variation of oblique top section of thick bamboo and insert a section of thick bamboo, reach the fender angle of protecting of its surrounding board of adjusting according to the scene demand, the screw propulsion principle of rethread screw push rod and fixed block, drive top stretching the baffle and correspond the adjustment and use at the top of its surrounding board, make it more accord with the scene actual conditions.

Description

Novel cofferdam for oil field

Technical Field

The utility model relates to the technical field of cofferdam structures, in particular to a novel cofferdam for an oil field.

Background

In the oil extraction process of the oil field, in order to prevent splashed oil stains from polluting surrounding environments, a cofferdam is installed around a well site to prevent surrounding environments from being polluted, and the prior cofferdam for the oil field has the following defects in the field actual use: 1. the heights of the surrounding baffles are fixed, cannot be correspondingly adjusted according to the actual conditions of the site, are preset, and have flaws in use; 2. the stability during its installation is not high, is in the bolt nail that directly encloses baffle bottom inserts soil, and horizontal compressive capacity is not strong, needs the on-the-spot constructor to additionally beat the bracing anchor stake according to horizontal compressive demand, therefore has the trouble problem of on-the-spot operation.

Therefore, the novel cofferdam for the oil field is disclosed by the application aiming at the problems, and the problems existing in the actual use are effectively solved.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a novel cofferdam for an oil field, which solves the problems that the heights of surrounding baffles are fixed, cannot be correspondingly adjusted according to the actual conditions of the field, are preset heights, have flaws in use, are low in stability in installation, are all obtained by directly inserting bolt nails at the bottoms of the surrounding baffles into soil, are low in horizontal compressive resistance, and require site constructors to punch diagonal bracing anchoring piles additionally according to the horizontal compressive resistance requirements.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a novel cofferdam is used in oil field, includes a plurality of stable bedplate, the top of stable bedplate articulates there is the baffle that encloses, the top sliding insertion of baffle has the top to stretch the baffle, the front of the baffle that stretches in the top and the equal fixedly connected with butt joint inserted block of front of enclosing the baffle, the recess that the cooperation butt joint inserted block used has all been seted up to the back of the baffle that stretches in the top, the right side fixedly connected with fixed block of baffle, the middle part of fixed block runs through threaded push rod, threaded push rod's top and the bottom rotation of top briquetting are connected, the left side of top briquetting and the right side fixed connection of top are stretched the baffle, threaded push rod's bottom fixedly connected with rotary adjustment cap, the recess fixedly connected with conflict locked block that sets up on the right side of enclosing the baffle, the right side of conflict locked block inserts two L type fixture blocks articulates there is the connection hinge piece, the right side fixedly connected with inclined ejection cylinder, two the inclined ejection cylinder is respectively with the middle part of conflict locked block and is the back symmetric top, the bottom of push rod's top cartridge, the bottom of push rod is equipped with the bottom of a plurality of push rods and the top locating cylinder, the bottom of push rod is connected with the bottom of a plurality of the fixed connection of the top of the fixed connection, the bottom of the top of the cylinder is connected with the top of the fixed connection of the top of a plurality of the cylinder, the top of the cylinder plug pin is inserted along the bottom the top of the fixed connection, the top of the top is connected with the bottom of the top of the fixed connection top of the cylinder, the left side of location spout piece has offered the spout that the cooperation slider was used, the right side of slider inserts in the spout that the location spout piece left side was offered, and the right-hand member of slider and the spout inner wall sliding connection that the location spout piece left side was offered.

Preferably, the top of conflict locking piece has inserted two screw thread and has pushed the depression bar, the surface of screw thread pushing the depression bar and the inner wall threaded connection of conflict locking piece, two the bottom of screw thread pushing the depression bar all rotates with the top of conflict tight clamp plate and is connected.

Preferably, the bottoms of the abutting pressing plates are in extrusion contact with the tops of the two L-shaped clamping blocks, and the tops of the threaded pushing rods are fixedly connected with a pushing rotating cap.

Preferably, the bottom fixedly connected with of pressing plate is even briquetting, even briquetting is located the mouth inslot of stabilizing the bedplate, the bottom fixedly connected with of even briquetting is a plurality of oblique inserted pins, insert in the soil to one side the bottom of inserted pin.

Preferably, the left side surface of stable bedplate runs through two stable plug pins, two stable plug pins are respectively with the middle part of stable bedplate about being symmetric distribution, fixed limit sleeve has been cup jointed to stable plug pin's fixed surface, fixed limit sleeve's right side fixedly connected with arc piece, the right side of arc piece inserts the wearing inslot of joint piece.

Preferably, the bottoms of the two clamping blocks are fixedly connected with the top of the stable seat board, the top of the stable plug pin is fixedly provided with the adjusting beating block, and the left side of the fixed limiting sleeve is fixedly connected with the rotary beating block.

The utility model provides a novel cofferdam for an oil field. The beneficial effects are as follows:

(1) The novel cofferdam for the oil field is characterized in that the novel cofferdam for the oil field is arranged through the stabilizing seat plate, the surrounding baffle plate, the top extension baffle plate, the butt-joint inserting block, the top pressing block, the fixing block, the threaded push rod, the rotary adjusting cap, the abutting locking block, the L-shaped clamping block, the connecting hinge block, the inclined top cylinder, the threaded push rod, the abutting pressing plate, the inserting cylinder, the rotary adjusting cylinder, the transverse pushing block, the positioning sliding groove block, the sliding piece, the pressing plate, the even pressing block and the inclined inserting nail are matched for use, so that the pressing plate is pressed downwards, a plurality of bolt positioning nails are inserted into soil, a plurality of inclined inserting nails are obliquely inserted into the soil, a certain horizontal and vertical compression resistance aim is formed, the fixed more stable effect of the surrounding baffle plate is ensured, then the inclined top cylinder and the inserting cylinder are driven to generate telescopic displacement through the threaded displacement principle of the rotary adjusting cylinder and the inserting cylinder, the L-shaped clamping block arranged at the top of the inclined top cylinder is inserted into the clamping groove of the abutting locking block, then the inclined top cylinder and the insertion cylinder are used for providing inclined support for the surrounding baffle plate, the abutting pressing plate is driven to fix the clamping of the L-shaped clamping block and the abutting locking block by the screw pushing principle of the screw pushing rod, so that the surrounding baffle plate is provided with stable supporting acting force, the compressive strength of the surrounding baffle plate is ensured to be higher, and then the inclined top cylinder and the insertion cylinder can be continuously regulated and controlled by continuously rotating the regulating cylinder, the angle change of the inclined top cylinder and the insertion cylinder is utilized, the blocking and protecting angle of the surrounding baffle plate can be regulated according to the field requirement, the screw pushing rod can be rotated according to the requirement, the top extending baffle plate is driven to be in telescopic displacement at the top of the surrounding baffle plate by the screw pushing principle of the screw pushing rod and the fixing block, the cofferdam is more suitable for corresponding adjustment and use according to the actual situation of the site, so as to ensure the effect of more convenient and reasonable use of the cofferdam in the actual use.

Drawings

FIG. 1 is a schematic cross-sectional elevation view of the structure of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the present utility model at A of FIG. 1;

FIG. 3 is an enlarged schematic view of the structure of the present utility model at B of FIG. 1;

FIG. 4 is an enlarged schematic view of the structure of the present utility model at C of FIG. 1;

fig. 5 is an enlarged schematic view of the structure of the present utility model at D of fig. 3.

In the figure: 1. stabilizing the seat plate; 2. a surrounding baffle; 3. a top extension baffle; 4. a butt-joint plug block; 5. pressing a block; 6. a fixed block; 7. a threaded push rod; 8. rotating the adjustment cap; 9. a lock block is abutted; 10. an L-shaped clamping block; 11. connecting the hinge blocks; 12. obliquely pushing the cylinder; 13. a threaded push rod; 14. pressing the pressing plate tightly; 15. pushing the rotating cap tightly; 16. an insertion tube; 17. rotating the adjusting cylinder; 18. a transverse pushing block; 19. positioning a chute block; 20. a slider; 21. pressing the plate; 22. uniformly pressing blocks; 23. oblique inserted nails; 24. a bolt positioning nail; 25. stabilizing the inserted pin; 26. fixing a limit sleeve; 27. an arc block; 28. a clamping block; 29. adjusting the beating block; 30. and (5) rotating the knocking block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-5, the present utility model provides a technical solution: the utility model provides a novel cofferdam for oil field, including a plurality of stable bedplate 1, the top of stable bedplate 1 articulates there is the surrounding baffle 2, the top slip of surrounding baffle 2 has been inserted and has been stretched baffle 3, the front of baffle 3 is stretched in the top and the front of surrounding baffle 2 all fixedly connected with butt joint insertion piece 4, through the setting of butt joint insertion piece 4, thereby make its a plurality of surrounding baffles 2 splice each other back and back each other in proper order, the recess that the cooperation butt joint insertion piece 4 used has all been seted up to the back of baffle 3 is stretched in the top and the back of surrounding baffle 2, the right side fixedly connected with fixed block 6 of surrounding baffle 2, threaded push rod 7 has been run through at the middle part of fixed block 6, the top of threaded push rod 7 is rotated with the bottom of top briquetting 5 and is connected, the left side of top briquetting 5 is fixedly connected with the right side of top and is stretched baffle 3 through the setting of threaded push rod 7 and top stretching baffle 3, utilize the screw propulsion principle of threaded push rod 7 and fixed block 6, the top extension baffle 3 is driven to stretch out and draw back at the top of the enclosure baffle 2, the height of the enclosure is enabled to be more in line with the actual situation of the site to be correspondingly adjusted and used, the bottom of the threaded push rod 7 is fixedly connected with the rotary adjusting cap 8, the threaded push rod 7 is convenient to rotate through the arrangement of the rotary adjusting cap 8, the interference locking block 9 is fixedly connected in the groove formed in the right side of the enclosure baffle 2, two L-shaped clamping blocks 10 are inserted in the right side of the interference locking block 9, the side face of the L-shaped clamping block 10 is hinged with the connecting hinge block 11, the oblique top barrel 12 is fixedly connected to the right side of the connecting hinge block 11 through the arrangement of the L-shaped clamping block 10, the two oblique top barrels 12 are respectively symmetrically distributed in the front-back direction with the middle part of the interference locking block 9, the two threaded push rods 13 are inserted in the top of the interference locking block 9, the surface of the screw pushing rod 13 is in threaded connection with the inner wall of the abutting locking block 9, the bottoms of the two screw pushing rods 13 are in rotary connection with the top of the abutting pressing plate 14, the bottoms of the abutting pressing plates 14 are in extrusion contact with the tops of the two L-shaped clamping blocks 10, the abutting pressing plate 14 is driven to move downwards through the arrangement of the screw pushing rods 13 and the abutting pressing plates 14 by the screw pushing principle of the screw pushing rods 13, the two L-shaped clamping blocks 10 are firmly clamped in the clamping grooves of the abutting locking block 9, the top of the screw pushing rod 13 is fixedly connected with a tight pushing rotating cap 15, the effect of conveniently rotating the screw pushing rod 13 is achieved through the arrangement of the tight pushing rotating cap 15, an inserting cylinder 16 is inserted into the bottom of the inclined pushing cylinder 12, a threaded groove is formed in the surface of the inserting cylinder 16, a rotary adjusting cylinder 17 is sleeved on the surface of the screw thread of the inserting cylinder 16, the top edge of the rotary adjusting cylinder 17 is in rotary connection with the bottom edge of the inclined pushing cylinder 12, the bottoms of the two insertion cylinders 16 are hinged with the top of the transverse pushing block 18, the bottom of the transverse pushing block 18 is fixedly connected with the top of the pressing plate 21, the bottom of the pressing plate 21 is fixedly connected with a plurality of bolt positioning nails 24, the bottoms of the bolt positioning nails 24 are penetrated through the bottom of the stable seat plate 1 in an interactive way, the tail end of the bolt positioning nails is inserted into soil, the right side of the transverse pushing block 18 is fixedly connected with a sliding piece 20, the top of the stable seat plate 1 is fixedly connected with a positioning sliding groove block 19, the left side of the positioning sliding groove block 19 is provided with a sliding groove matched with the sliding piece 20, the right side of the sliding piece 20 is inserted into the sliding groove formed in the left side of the positioning sliding groove block 19, the right end of the sliding piece 20 is in sliding connection with the inner wall of the sliding groove formed in the left side of the positioning sliding groove block 19, the bottom of the pressing plate 21 is fixedly connected with a uniform pressing piece 22, the uniform pressing piece 22 is positioned in the penetrating groove of the stable seat plate 1, the bottom fixedly connected with of even briquetting 22 is a plurality of oblique inserting nails 23, in inserting soil to the bottom of inserting nail 23 to one side, set up through a plurality of oblique inserting nails 23 and a plurality of bolt locating nail 24, make it all insert in the soil through a plurality of bolt locating nails 24, and cooperate a plurality of oblique inserting nails 23 to insert in the soil to one side, thereby make its stable bedplate 1 form certain level and vertical compressive destination, then guarantee the effect that enclosure plate 2 is fixed, the left side surface of stable bedplate 1 runs through two stable inserting nails 25, two stable inserting nails 25 are respectively with the middle part of stable bedplate 1 around being symmetrical distribution, the fixed sleeve 26 that has cup jointed of surface of stable inserting nail 25, fixed sleeve 26's right side fixedly connected with arc piece 27, the right side of arc piece 27 inserts the joint piece 28 in the mouth groove, the bottom of two joint pieces 28 all with stable bedplate 1's top fixed connection, through fixed sleeve 26, arc piece 27 and joint piece 28's setting, thereby play the effect that makes its joint piece 28 take place relative displacement with stable bedplate 1 afterwards, the fixed sleeve 25 has been guaranteed to rotate, thereby the fixed sleeve 30 has been played to the fixed sleeve 25, the effect that the rotary joint piece 25 is stable in the fixed sleeve 25 is stable, the rotary joint of the rotatable sleeve 25 has been guaranteed.

When in use, the butt-joint inserting blocks 4 on the surrounding baffle plate 2 and the top-extension baffle plate 3 can be correspondingly inserted, so that a plurality of surrounding baffle plates 2 and the top-extension baffle plate 3 are correspondingly spliced back and forth in sequence, then two stabilizing inserting nails 25 on the stabilizing seat plate 1 are inserted into soil, then the fixed limiting sleeve 26 is rotated, the arc block 27 on the surface of the fixed limiting sleeve 26 is rotated into the through hole groove (shown in figure 4) formed on the left side of the clamping block 28, then the pressing plate 21 is pressed downwards, a plurality of bolt positioning nails 24 are inserted into the soil, and a plurality of oblique inserting nails 23 are obliquely inserted into the soil, so that the stabilizing seat plate 1 forms a certain horizontal and vertical compression-resistant aim, the fixed stabilizing effect of the surrounding baffle plate 2 is ensured, then the adjusting cylinder 17 is rotated through rotation, and the screw displacement principle of the adjusting cylinder 17 and the inserting cylinder 16 is adopted, the inclined top cylinder 12 and the insertion cylinder 16 are driven to perform telescopic displacement, the L-shaped clamping block 10 arranged at the top of the inclined top cylinder 12 is matched with the insertion cylinder 16 to be inserted into the clamping groove of the abutting locking block 9, then the two tight pushing and rotating caps 15 arranged at the top of the abutting locking block 9 are rotated, the abutting tight pressing plate 14 is driven to fix the clamping connection of the L-shaped clamping block 10 and the abutting locking block 9 through the screw pushing principle of the screw pushing rod 13, then the inclined top cylinder 12 and the insertion cylinder 16 are used for providing inclined struts for the surrounding baffle plate 2, so that the surrounding baffle plate 2 is more stable, the compression strength of the surrounding baffle plate 2 is ensured to be higher, when the angle of the surrounding baffle plate 2 is required to be adjusted on site, the continuous rotation of the rotating adjusting cylinder 17 can be continuously regulated, the telescopic displacement length of the inclined top cylinder 12 and the insertion cylinder 16 is continuously regulated, the angle swinging change of the inclined top cylinder 12 and the insertion cylinder 16 is realized, the blocking angle of the surrounding baffle plate 2 is adjusted according to the site requirement, when the shielding height of the top of the surrounding baffle plate 2 is required to be adjusted according to the field use requirement, namely, the rotary adjusting cap 8 is rotated to drive the threaded push rod 7 to rotate, so that the top extending baffle plate 3 is driven to stretch out and draw back at the top of the surrounding baffle plate 2 according to the threaded pushing principle of the threaded push rod 7 and the fixed block 6, so that the purpose of corresponding adjustment and use is achieved, which is more in line with the field practical situation, the purpose of more convenient and reasonable use of the cofferdam in practical use is ensured, and meanwhile, the content which is not described in detail in the specification belongs to the prior art known by the expert in the field.

In combination, the novel cofferdam for the oil field is obtained by arranging the stabilizing seat board 1, arranging the surrounding baffle 2, the top extension baffle 3, the butt joint block 4, the top pressing block 5, the fixing block 6, the threaded push rod 7, the rotary adjusting cap 8, the abutting locking block 9, the L-shaped clamping block 10, the connecting hinge block 11, the inclined top cylinder 12, the threaded push rod 13, the abutting pressing plate 14, the inserting cylinder 16, the rotary adjusting cylinder 17, the transverse pushing block 18, the positioning sliding groove block 19, the sliding piece 20, the pressing plate 21, the even pressing block 22 and the inclined inserting nails 23, so that the plurality of bolt positioning nails 24 are inserted into soil by downwards pressing the pressing plate 21, and the plurality of inclined inserting nails 23 are obliquely inserted into the soil, so that certain horizontal and vertical compression resistance aims are formed, the more stable effect that the surrounding baffle 2 is fixed is ensured, then the rotary adjusting cylinder 17 is rotated, the screw displacement principle of the rotary adjusting cylinder 17 and the inserting cylinder 16 is used for driving the telescopic displacement of the inclined jacking cylinder 12 and the inserting cylinder 16 to enable the L-shaped clamping block 10 arranged at the top of the inclined jacking cylinder 12 to be inserted into the clamping groove of the abutting locking block 9, the screw pushing principle of the screw pushing rod 13 is used for driving the abutting pressing plate 14 to fix the clamping connection of the L-shaped clamping block 10 and the abutting locking block 9, the abutting pressing plate 14 is used for providing stable supporting acting force for the surrounding baffle plate 2, so that the compressive strength of the surrounding baffle plate 2 is ensured to be higher, and then the continuous rotation of the rotary adjusting cylinder 17 can be used for continuously adjusting the telescopic displacement length of the inclined jacking cylinder 12 and the inserting cylinder 16, so that the blocking angle of the surrounding baffle plate 2 can be adjusted according to the field requirement by utilizing the angle change of the inclined jacking cylinder 12 and the inserting cylinder 16, and the screw pushing principle of the screw pushing rod 7 and the fixing block 6 can be rotated according to the requirement, the top extension baffle 3 is driven to stretch out and draw back at the top of the surrounding baffle 2, so that the top extension baffle is more in line with the actual condition of the site to carry out corresponding adjustment and use, and the effect of more convenient and reasonable use of the cofferdam in actual use is ensured.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel cofferdam is used in oil field, includes a plurality of stable bedplate (1), its characterized in that: the top of the stable seat board (1) is hinged with a surrounding baffle (2), the top of the surrounding baffle (2) is inserted with a top extension baffle (3) in a sliding manner, the front of the top extension baffle (3) and the front of the surrounding baffle (2) are fixedly connected with a butt joint plug block (4), the back of the top extension baffle (3) and the back of the surrounding baffle (2) are provided with grooves matched with the butt joint plug block (4), the right side of the surrounding baffle (2) is fixedly connected with a fixing block (6), the middle part of the fixing block (6) is penetrated with a threaded push rod (7), the top of the threaded push rod (7) is rotationally connected with the bottom of the top press block (5), the left side of the pushing block (5) is fixedly connected with the right side of the pushing baffle (3), the bottom of the threaded push rod (7) is fixedly connected with a rotary adjusting cap (8), a supporting locking block (9) is fixedly connected in a groove formed in the right side of the surrounding baffle (2), two L-shaped clamping blocks (10) are inserted in the right side of the supporting locking block (9), the side surfaces of the L-shaped clamping blocks (10) are hinged with a connecting hinge block (11), the right side of the connecting hinge block (11) is fixedly connected with an inclined pushing cylinder (12), the two inclined pushing cylinders (12) are respectively symmetrically distributed in the front-back direction with the middle part of the supporting locking block (9), the utility model discloses a sliding chute, including inserting section of thick bamboo (16), screw thread groove has been seted up to the bottom of oblique top section of thick bamboo (12), the screw thread groove has been seted up to the surface of inserting section of thick bamboo (16), the surface screw thread of inserting section of thick bamboo (16) has cup jointed and has been rotated and have been adjusted section of thick bamboo (17), the top along the mouth of rotation adjustment section of thick bamboo (17) is connected with the bottom along the mouth of oblique top section of thick bamboo (12), two the bottom of inserting section of thick bamboo (16) is all articulated with the top of horizontal sliding block (18), the bottom of horizontal sliding block (18) is with the top fixed connection of push plate (21), the bottom fixedly connected with of push plate (21) a plurality of bolt locating nail (24), a plurality of the bottom of bolt locating nail (24) all interdynamic is passed the bottom of inserting stable bedplate (1), and in the end inserts soil, the right side fixedly connected with slider (20) of horizontal sliding block (18), the spout (19) of locating slider (20) are seted up on the left side of sliding block (20), the side of locating slider (19) is seted up and is connected with the left side spout (19).

2. The novel cofferdam for an oilfield of claim 1, wherein: the top of conflict locking piece (9) has inserted two screw thread push rod (13), the surface of screw thread push rod (13) and the inner wall threaded connection of conflict locking piece (9), two the bottom of screw thread push rod (13) all rotates with the top of conflict tight clamp plate (14) and is connected.

3. The novel cofferdam for an oilfield of claim 2, wherein: the bottoms of the abutting pressing plates (14) are in extrusion contact with the tops of the two L-shaped clamping blocks (10), and the tops of the threaded pushing rods (13) are fixedly connected with a pushing rotating cap (15).

4. The novel cofferdam for an oilfield of claim 1, wherein: the bottom fixedly connected with of pressing plate (21) is even briquetting (22), even briquetting (22) are located the mouth groove of wearing of stabilizing bedplate (1), the bottom fixedly connected with of even briquetting (22) is a plurality of oblique inserted pin (23), in the bottom of oblique inserted pin (23) inserts soil.

5. The novel cofferdam for an oilfield of claim 1, wherein: the left side surface of stable bedplate (1) has run through two stable plug pins (25), two stable plug pins (25) are front and back symmetric distribution with the middle part of stable bedplate (1) respectively, fixed limit sleeve (26) have been cup jointed to the fixed surface mounting of stable plug pin (25), the right side fixedly connected with arc piece (27) of fixed limit sleeve (26), the right side of arc piece (27) inserts in the wearing mouth inslot of joint piece (28).

6. The novel cofferdam for an oilfield of claim 5, wherein: the bottoms of the two clamping blocks (28) are fixedly connected with the top of the stable seat board (1), the top of the stable plug pin (25) is fixedly provided with a beating block (29), and the left side of the fixed limiting sleeve (26) is fixedly connected with a rotary beating block (30).