CN217441114U - High-water-head small-pipe-diameter drainage pipeline plugging device - Google Patents
High-water-head small-pipe-diameter drainage pipeline plugging device Download PDFInfo
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- CN217441114U CN217441114U CN202220164352.0U CN202220164352U CN217441114U CN 217441114 U CN217441114 U CN 217441114U CN 202220164352 U CN202220164352 U CN 202220164352U CN 217441114 U CN217441114 U CN 217441114U
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- plugging device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a high water head small diameter drainage pipe plugging device belongs to municipal works technical field. A high-head small-pipe-diameter drainage pipeline plugging device comprises a rubber water stopping disc and a screw rod, wherein the rubber water stopping disc is connected with the screw rod through a connecting rod part; one end of the connecting rod part is rotatably connected with the rubber water stop disc, and the other end of the connecting rod part is rotatably connected with the screw; the connecting rod part consists of an upper connecting rod and a lower connecting rod. The utility model can conveniently and rapidly plug the pipeline running at the present situation; the operation is simple and convenient, the safety is high, and the labor intensity is reduced; the manufacture is simple and portable, and the using turnover rate is high; the pipe fitting can be adapted to pipes with different diameters for operation; fully guarantee the shutoff effect, improve the efficiency of construction.
Description
Technical Field
The utility model relates to a municipal works technical field especially relates to a high water head small diameter drainage pipe plugging device.
Background
In municipal administration rain sewage pipeline overhauls and the desilting construction, often need carry out interim shutoff to the pipeline of being in operation, otherwise overhaul will can't develop. The drainage pipeline cannot be like a water supply pipe, and only the valve needs to be closed. For the plugging of drainage pipelines, the plugging is a time-consuming and dangerous work; especially, for pipelines with high water level and high flow rate, how to improve the efficiency and effect of pipeline plugging and improve the safety of plugging become problems to be solved urgently.
Currently, there are several forms of plugging.
1. And (5) plugging the wall.
The wall body plugging can adopt brick wall plugging or masonry plugging; the plugging is relatively convenient and safe to use in large pipelines. Wherein the wall needs to have a sufficient thickness to ensure safety.
Its advantages are high safety, and high safety. The disadvantage is that the wall strength maintenance requires a long time. The dismantling safety risk is large and the cost is high. Meanwhile, after the rush repair operation or the test is completed, the device needs to be dismantled, a large amount of manpower and material resources need to be paid out, certain raw materials are wasted, and the device is very inconvenient.
2. And (6) plugging the air bag.
The air bag plugging is to plug the water head by the friction force through the close contact of the air bag and the pipeline. The air bag plugging has the advantages of effective sealing, convenient installation and removal and wide application range. The disadvantage is that the larger the pipe diameter, the smaller the head pressure that the air bag can bear, and the danger is increased. The air bag is also very high in use requirement, and the air pressure condition must be checked frequently and air is supplied in time.
Meanwhile, the air bag is required to be inflated for air bag plugging, but the inflation pressure is not easy to control, and the air bag is easy to damage due to high air pressure; the sealing effect cannot be achieved when the air pressure is low. In addition, the pipeline needs to be cleaned before inflation, and the sand is required to be cleaned, the inner wall is smooth, and burrs are not allowed. Additionally, airbag installation often requires diver underwater operations.
Therefore, a drainage pipeline plugging tool which is simple and convenient to plug, rapid and good in plugging effect is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that drainage pipe shutoff operation is complicated, inefficiency, with high costs, the security performance is poor among the prior art, and the small pipe diameter drainage pipe plugging device of a high water head that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a high-water-head small-pipe-diameter drainage pipe plugging device comprises a rubber water stopping disc and a screw rod, wherein the rubber water stopping disc is connected with the screw rod through a connecting rod part;
one end of the connecting rod part is rotatably connected with the rubber water stop disc, and the other end of the connecting rod part is rotatably connected with the screw;
the connecting rod part consists of an upper connecting rod and a lower connecting rod.
In some embodiments, the lower end of the screw is rotatably connected with a rotary disk seat;
one end of the lower connecting rod is rotatably connected with the rotating disc seat.
In some embodiments, the rotating disk seat is composed of a lower disk surface and an upper disk surface;
the lower disc surface and the upper disc surface are connected through bolts;
the upper part of the lower disc surface is provided with an arc-shaped block.
In some embodiments, the bottom end of the screw is provided with a limiting disc, and the limiting disc is arranged in the rotating disc seat to rotate.
In some embodiments, the outer surface of the screw is threaded with a lifting sleeve;
the lifting sleeve is rotatably connected with the upper connecting rod.
In some embodiments, one end of the link member is provided with a mounting plate;
the rubber water stop disc is detachably connected to the other side of the mounting plate.
In some embodiments, the rubber water stop disc comprises a connecting plate, a rubber stopper;
the rubber plug sheet is fixedly connected to the outer side of the connecting plate.
In some embodiments, a positioning ring is arranged on the outer side of the rubber water stopping disc;
the outer diameter of the positioning ring is smaller than the diameter of the rubber water stopping disc.
In some embodiments, the top end of the screw is provided with an extension bar.
In some embodiments, the extension bar is connected to the threaded rod by an internally threaded sleeve;
the top of the screw rod is provided with a groove, the lower end of the screw rod is provided with an insertion block, and the insertion block is clamped in the groove.
Compared with the prior art, the utility model provides a high water head small diameter drainage pipe plugging device possesses following beneficial effect:
1. the utility model uses the rubber water stopping disc to block the pipeline, the connecting rod part provides supporting force for the rubber water stopping disc, and the screw rod drives the connecting rod part to adjust; each part can be replaced to match with the working environment with various diameters and depths.
2. The utility model has simple operation, the personnel can finish plugging on the ground, the safety is high, and the labor intensity is reduced; after the construction is finished, the device is removed and is continuously used at other operating points, so that the device is low in cost, economical and applicable, and high in use turnover rate.
3. The utility model has the advantages that the rubber water stop disc is contacted with the inner wall and the outer end surface of the pipeline, and the plugging effect is fully ensured by utilizing the deformable characteristic of rubber; the positioning ring is arranged to assist in quickly finding the position of the pipeline, so that the construction efficiency is further improved, and the operation is simple and convenient; and, carry out accurate restriction to the mounted position of rubber stagnant water dish.
4. The utility model can conveniently and rapidly plug the pipeline running at the present situation; simple manufacture, portability, flexible and convenient operation and adaptation to the pipeline operation with different diameters.
The part which is not involved in the device is the same as the prior art or can be realized by adopting the prior art, the utility model can conveniently and rapidly plug the pipeline which is operated at the present situation; the operation is simple and convenient, the safety is high, and the labor intensity is reduced; the manufacture is simple and portable, and the using turnover rate is high; the pipe fitting can be adapted to pipes with different diameters for operation; fully guarantee the shutoff effect, improve the efficiency of construction.
Other advantages, objects, and features of the invention will be set forth in part in the description which follows; and will be apparent to those skilled in the art, to a certain extent, upon a study of the following; or may be learned by the practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the open state of the present invention.
Fig. 3 is a schematic structural diagram of the usage state of the present invention.
Fig. 4 is an enlarged schematic view of the structure at C in fig. 3.
Fig. 5 is an enlarged schematic view of a portion a in fig. 2.
Fig. 6 is an exploded view of the rotating disk base.
Fig. 7 is a schematic structural view of the lifting sleeve.
Fig. 8 is an enlarged schematic view of the structure at B in fig. 2.
Fig. 9 is an exploded view of the rubber water stopping disk.
Fig. 10 is a schematic structural view of the extension bar in use.
Fig. 11 is an exploded view of the extension rod and the internally threaded sleeve.
In the figure: 1. a rubber water stopping tray; 101. a connecting plate; 102. a rubber blocking sheet; 2. a screw; 201. a limiting disc; 202. a groove; 3. a link member; 301. an upper connecting rod; 302. a lower connecting rod; 4. rotating the disc base; 401. a lower disc surface; 402. the disc surface is arranged; 403. an arc-shaped block; 5. a lifting sleeve; 6. mounting a plate; 7. a positioning ring; 8. lengthening a rod; 801. inserting a block; 9. an internally threaded sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-11, the plugging device for the drainage pipeline with the high water head and the small pipe diameter comprises a rubber water stopping disc 1 and a screw rod 2, wherein the rubber water stopping disc 1 is connected with the screw rod 2 through a connecting rod part 3; two rubber water stopping discs 1 are symmetrically arranged on two sides of the screw rod 2.
Wherein, one end of the connecting rod component 3 is rotationally connected with the rubber water stopping disc 1, and the other end is rotationally connected with the screw rod 2.
Meanwhile, the link member 3 is composed of an upper link 301 and a lower link 302.
A rubber water stopping disc 1 can be expanded outwards or contracted inwards under the action of an upper connecting rod 301 and a lower connecting rod 302.
Therefore, the rubber water stopping disc 1 is used for plugging pipelines on two sides, and the connecting rod part 3 provides supporting force for the rubber water stopping disc 1; the screw 2 is used for operation and drives the link member 3 to adjust.
In use, the screw 2 is driven; under the rotation action of the screw 2, the distance between an upper connecting rod 301 and a lower connecting rod 302 which are rotationally connected with the screw 2 is changed; thereby adjusting the opening and closing degree of the connecting rod part 3, changing the distance between the rubber water stopping disc 1 and the screw rod 2, and leading the rubber water stopping disc to be contacted with or far away from the pipeline.
As shown in fig. 1, before operation, the link members 3 are relatively retracted inward.
As shown in fig. 2, in use, the drive link member 3 expands outwardly; the distance between the two rubber waterstop trays 1 becomes large.
As shown in fig. 3-4, in an operational state.
The method comprises the following steps: firstly, putting the whole device into an inspection well in a contraction state; one of the rubber water stopping discs 1 is arranged outside the pipeline and is in contact with the pipeline; then, the screw rod 2 is driven, the connecting rod part 3 expands outwards, and the rubber water stopping disc 1 at the other end is inserted into the pipeline at the other end; and continuing to drive until the rubber plug piece is expanded to completely close the pipeline.
Preferably, when the inspection well is used in a specific mode, a plurality of groups of connecting rod parts 3 with different lengths can be arranged, so that the inspection well can be better adapted to inspection wells with different sizes.
In some embodiments, the lower end of the screw 2 is rotatably connected with a rotating disk seat 4; one end of the lower connecting rod 302 is rotatably connected with the rotating disk seat 4.
As shown in fig. 5 to 6, in particular, in some embodiments, two pairs of ear plates are symmetrically arranged on the outer circumferential side of the rotary disk seat 4; each pair consists of two ear plates which are oppositely arranged; meanwhile, one end of the lower connecting rod 302 is provided with a rotating shaft which is inserted into the ear plate to rotate.
In some embodiments, the rotating disk seat 4 is composed of a lower disk surface 401 and an upper disk surface 402.
The lower disc surface 401 and the upper disc surface 402 are connected by bolts.
Meanwhile, an arc-shaped block 403 is arranged at the upper part of the lower disc surface 401; in the installation state, the upper top surface of the arc-shaped block 403 is in contact with the lower bottom surface of the lower disc surface 401; the lower plate 401 and the upper plate 402 are separated to form a holding space.
Preferably, the ear plate is fixedly connected to the outer side surface of the arc-shaped block 403.
Further, the bottom of screw rod 2 is provided with spacing dish 201.
Correspondingly, a through hole is formed in the center of the upper disc surface 402; the screw 2 penetrates through the upper disc surface 402 and reaches the clamping space; the limiting disc 201 is arranged to rotate in the clamping space of the rotating disc seat 4.
Wherein, the thickness of the limiting disc 201 is smaller than the height of the clamping space.
Preferably, a rotating shaft is arranged in a through hole of the upper disc surface 402, and the screw 2 is arranged in the rotating shaft in a penetrating way; to reduce wear of the screw 2 and the upper disc surface 402.
It will be appreciated that the contact portion of the screw 2 with the upper disc surface 402 is a polished rod.
In some embodiments, the outer surface of the screw 2 is threaded with a lifting sleeve 5.
Meanwhile, the lifting sleeve 5 is rotatably connected to the upper link 301 to drive the upper link 301.
Specifically, as shown in fig. 7, lug plates are symmetrically disposed on the outer peripheral side of the lifting sleeve 5, and one end of the upper link 301 is provided with a rotating shaft and is inserted into the lug plates to rotate.
Thus, by rotating the screw 2, one end of the upper link 301 is driven to move with the lifting sleeve 5; the degree of expansion of the link member 3 is adjusted in a state where the relative position of the lower link 302 and the bottom end of the screw 2 is fixed.
Preferably, in some embodiments, after the lifting sleeve 5 is adjusted to the working state, in order to better ensure the stability, a locking ring is additionally arranged at the upper end of the lifting sleeve 5; the locking ring is in threaded connection with the screw rod 2 and is rotationally adjusted to be in contact with the upper end of the lifting sleeve 5; further stabilizing the state.
Preferably, in some embodiments, in order to better apply a supporting force to the rubber water stopping disc 1, the length of the lower connecting rod 302 is set according to the diameter of the manhole; thus, when in the supporting state, the two lower connecting rods 302 are positioned on the same axis; the water pressure born by the rubber water stopping disc 1 is transmitted to the rotating disc seat 4 along the lower connecting rod 302.
In some embodiments, one end of the link member 3 is provided with a mounting plate 6.
Wherein the mounting plate 6 is rotatably connected to the link member 3.
Specifically, two pairs of ear plates are arranged on one side of the mounting plate 6; the two pairs of ear plates are arranged in parallel up and down; one ends of the upper connecting rod 301 and the lower connecting rod 302 are respectively clamped between the two connecting rods and are rotatably connected through an inserted rotating shaft.
Meanwhile, the rubber water stopping disc 1 is detachably connected to the other side of the mounting plate 6.
Specifically, the detachable installation can be carried out through the modes of clamping, screw connection and the like.
As shown in fig. 8 to 9, the rubber waterstop tray 1 is connected to the mounting plate 6 by bolts.
Therefore, the rubber water stopping discs 1 with different sizes can be installed according to the diameter of the pipeline to be plugged; to match the actual conditions.
Obviously, for effective plugging, the outer diameter of the rubber water stopping disc 1 is larger than the diameter of the pipeline to be plugged actually.
Preferably, the rubber water stopping disc 1 is provided with an inclination angle; i.e. the diameter towards the top end of the pipe is slightly smaller than the diameter at the other end; therefore, the whole body is in a round platform structure; and the diameter of the smaller end of the circular truncated cone is smaller than the inner diameter of the pipeline.
So as to be more convenient to insert in the pipeline to with the inner wall frictional contact of pipeline, better shutoff carries out, guarantee the working effect.
In some embodiments, the rubber waterstop tray 1 comprises a connecting plate 101 and a rubber plug piece 102.
Wherein, the rubber plug 102 is fixedly connected to the outer side of the connecting plate 101.
The rubber stopper piece 102 may be fixed to the connecting plate 101 by means of bonding, bolting, or the like.
For example, when the bonding form is adopted, the viscose capable of simultaneously bonding metal and rubber is selected; when the bolt form is adopted, a bolt is arranged at one end of the rubber plug piece 102 facing the inside of the pipeline, penetrates through the connecting plate 101 and is in threaded connection with the connecting plate 101.
Meanwhile, the connection plate 101 is connected to the mounting plate 6 by screws.
Wherein, a screw can be penetrated from one side of the mounting plate 6 and is in threaded connection with the opening of the connecting plate 101.
Or, a threaded rod is fixedly connected to the side of the connecting plate 101 facing the mounting plate 6, and the threaded rod is locked by a nut after penetrating through the mounting plate 6.
Preferably, the rubber plug 102 is made of hollow rubber; the water plugging pipe is used as a core component of water sealing and is in closed contact with a pipeline to realize water plugging.
Further, in some embodiments, a positioning ring 7 is disposed on the outer side of the rubber water stop disc 1.
Wherein, the positioning ring 7 is arranged concentrically with the rubber water stopping disc 1; the outer diameter of the positioning ring 7 is smaller than the diameter of the rubber water stopping disc 1; at the same time, the outer diameter of the positioning ring 7 is smaller than the inner diameter of the matched pipeline.
Therefore, when the rubber water stopping disc is used, the positioning ring 7 can be quickly and efficiently placed into a pipeline to accurately limit the installation position of the rubber water stopping disc 1.
Meanwhile, the positioning ring 7 smaller than the diameter of the pipeline can assist in quickly finding the position of the pipeline; further improve the construction efficiency and is simple and convenient to operate.
Preferably, the bolts penetrate through the bottom surface of the positioning ring 7 and the rubber water stopping disc 1 once and are connected with the connecting plate 101 in a threaded mode.
In some embodiments, the top end of the screw 2 is provided with an extension bar 8.
In actual work, the diameters of all pipelines are not consistent; meanwhile, the depth of the pipeline is also inconsistent; in order to ensure the wide applicability of the device, an extension bar 8 is arranged at the top end of the screw rod 2 to increase the whole height of the screw rod; thereby being applicable to more operations.
Specifically, in some embodiments, extension bar 8 is connected to threaded rod 2 by an internally threaded sleeve 9.
Wherein, the bottom of extension bar 8, the top of screw rod 2 are provided with the external screw thread with internal thread sleeve 9 assorted.
Further, in some embodiments, a groove 202 is formed at the top end of the screw rod 2, an insertion block 801 is arranged at the lower end of the screw rod 2, and the insertion block 801 is clamped in the groove 202.
Thereby, the connection state of the extension bar 8 and the screw rod 2 can be further stabilized; when the rotation operation is performed, no change occurs between the two.
When the utility model is used, the proper connecting rod component 3 and the extension bar 8 are selected according to the depth and the diameter of the inspection well; selecting a proper rubber water stopping disc 1 according to the diameter of the pipeline to be blocked; the device is assembled and adjusted to a closed state; putting the steel pipe into an inspection well; after one of the rubber water stopping discs 1 is contacted with a pipeline, the adjusting connecting rod part 3 is outwards opened; after the other rubber water stopping disc 1 is also contacted with the pipeline, the connecting rod part 3 is continuously opened; until the pipeline is completely closed.
In the utility model, the rubber water stopping disc 1 is used for plugging the pipeline, the connecting rod part 3 provides supporting force for the rubber water stopping disc 1, and the screw rod 2 drives the connecting rod part 3 to adjust; each part can be replaced to match with the working environment with various diameters and depths; the operation is simple and convenient, the plugging can be completed by personnel on the ground, the safety is high, and the labor intensity is reduced; after the construction is finished, the device is removed and is continuously used in other operation points, so that the cost is low, and the device is economical and applicable; the rubber water stopping disc 1 is contacted with the inner wall and the outer end surface of the pipeline, and the plugging effect is fully ensured by utilizing the deformable characteristic of rubber; the positioning ring 7 is arranged to assist in quickly finding the position of the pipeline, so that the construction efficiency is further improved, and the operation is simple and convenient; and, the mounting position of the rubber waterstop tray 1 is accurately defined.
The utility model can conveniently and rapidly plug the pipeline running at the present situation; compared with conventional forms such as air bag plugging and brick plugging, the device is simple and portable to manufacture, does not need personnel to perform downhole operation, and is high in safety, flexible and convenient to operate and high in using turnover rate; can be adapted to pipelines with different diameters for operation.
The above mentioned only are the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical scope of the present invention, and all the technical solutions and the design of the present invention should be covered within the protection scope of the present invention,
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (10)
1. The high-water-head small-pipe-diameter drainage pipeline plugging device is characterized by comprising a rubber water stopping disc (1) and a screw rod (2), wherein the rubber water stopping disc (1) is connected with the screw rod (2) through a connecting rod part (3);
one end of the connecting rod component (3) is rotationally connected with the rubber water stopping disc (1), and the other end of the connecting rod component (3) is rotationally connected with the screw rod (2);
the connecting rod part (3) consists of an upper connecting rod (301) and a lower connecting rod (302).
2. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 1, wherein the lower end of the screw rod (2) is rotatably connected with a rotating disc seat (4);
one end of the lower connecting rod (302) is rotatably connected with the rotary disk seat (4).
3. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 2, wherein the rotary disk seat (4) consists of a lower disk surface (401) and an upper disk surface (402);
the lower disc surface (401) and the upper disc surface (402) are connected through bolts;
the upper part of the lower disc surface (401) is provided with an arc-shaped block (403).
4. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 2, wherein a limiting disc (201) is arranged at the bottom end of the screw rod (2), and the limiting disc (201) is arranged in the rotating disc seat (4) to rotate.
5. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 1, wherein a lifting sleeve (5) is sleeved on the outer surface of the screw rod (2) in a threaded manner;
the lifting sleeve (5) is rotatably connected with the upper connecting rod (301).
6. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 1, wherein one end of the connecting rod component (3) is provided with a mounting plate (6);
the rubber water stopping disc (1) is detachably connected to the other side of the mounting plate (6).
7. The plugging device for the drainage pipeline with the high water head and the small pipe diameter according to claim 1, wherein the rubber water stopping disc (1) comprises a connecting plate (101) and a rubber plugging sheet (102);
the rubber plug sheet (102) is fixedly connected to the outer side of the connecting plate (101).
8. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 1, wherein a positioning ring (7) is arranged on the outer side of the rubber water stopping disc (1);
the outer diameter of the positioning ring (7) is smaller than the diameter of the rubber water stopping disc (1).
9. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 1, wherein the top end of the screw rod (2) is provided with an extension rod (8).
10. The plugging device for the drainage pipeline with the high water head and the small pipe diameter as claimed in claim 9, wherein the extension bar (8) is connected with the screw rod (2) through an internal thread sleeve (9);
the top end of the screw rod (2) is provided with a groove (202), the lower end of the screw rod (2) is provided with an insertion block (801), and the insertion block (801) is clamped in the groove (202).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220164352.0U CN217441114U (en) | 2022-01-21 | 2022-01-21 | High-water-head small-pipe-diameter drainage pipeline plugging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220164352.0U CN217441114U (en) | 2022-01-21 | 2022-01-21 | High-water-head small-pipe-diameter drainage pipeline plugging device |
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| CN217441114U true CN217441114U (en) | 2022-09-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416997A (en) * | 2022-09-30 | 2022-12-02 | 上海外高桥造船海洋工程有限公司 | Pipeline plugging device |
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2022
- 2022-01-21 CN CN202220164352.0U patent/CN217441114U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115416997A (en) * | 2022-09-30 | 2022-12-02 | 上海外高桥造船海洋工程有限公司 | Pipeline plugging device |
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