CN211058765U - Polyurethane foam plugging device - Google Patents
Polyurethane foam plugging device Download PDFInfo
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- CN211058765U CN211058765U CN201920735417.0U CN201920735417U CN211058765U CN 211058765 U CN211058765 U CN 211058765U CN 201920735417 U CN201920735417 U CN 201920735417U CN 211058765 U CN211058765 U CN 211058765U
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- plugging device
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Abstract
The utility model belongs to the technical field of plugging devices, in particular to a polyurethane foam plugging device, which comprises a base cover (1) arranged on a base, wherein a through hole (2) connected with a polyurethane storage tank is arranged in the base cover (1), a pulling type plugging device is arranged at the upper end in the through hole (2), a plugging block (8) is arranged at the lower end, the device is arranged at the upper end of the polyurethane storage tank arranged at the end part of a drawing hole, because the pressure in the storage tank is larger than the external pressure, when in use, the polyurethane storage tank can be communicated with the outside only by pulling a pull rope, the polyurethane flows to the upper end of the base cover to realize the plugging of the drawing hole, and the pull rope can extend to a mined well mouth to be beneficial to remote control, the device has strong adaptability to working conditions such as water jacking operation, water hole enriched operation and the like, and meanwhile, the device has small volume, light weight and convenient installation, the operation is simple.
Description
Technical Field
The invention belongs to the technical field of plugging devices, and particularly relates to a polyurethane foam plugging device.
Background
The polyurethane foam plugging mechanism is an indispensable device for sealing a pumping hole, a water injection hole and a water drainage hole in the shale gas and gas exploitation process, the traditional plugging method of the pumping hole is generally combined into two plugging and one injection, namely, the innermost end and the outermost end of the pumping hole are plugged by a method, then a cement plugging substance or liquid polyurethane foam is injected into a middle closed annular space for plugging, and along with the increase of exploitation depth, the traditional plugging method has the defect that 1. the plugging material needs to be conveyed into the plugged hole, and the consumption of polyurethane raw materials is increased due to long-distance conveying; 2. due to deepening of the mining depth, the plugging operability is poor, and the plugging difficulty of the innermost end of the drainage hole is higher; 3. the plugging effect is poor due to remote plugging, and the adaptability to working conditions such as water jacking operation and water hole-rich operation is poor, so that the pumping and releasing effects of shale gas, gas and the like are greatly weakened.
Disclosure of Invention
In order to effectively solve the problems in the background art, the invention provides a polyurethane foam plugging device, which has the following specific technical scheme:
a polyurethane foam plugging device comprises a base cover (1) arranged on a base, wherein a through hole (2) connected with a polyurethane storage tank is formed in the base cover (1), a pulling type plugging device is arranged at the upper end in the through hole (2), and a plugging block (8) is arranged at the lower end;
preferably, the pull occlusion device comprises: the device comprises a top cover (3), a spring (4) sleeved at the lower end of the top cover (3), a supporting sheet (5) used for pressing the spring (4), and a pulling structure used for supporting the supporting sheet (5); the drawing structure comprises a pull rope (27) penetrating through the hollow structure and two ejector rods (6) respectively hinged with the end parts of the pull rope (27), the ejector rods (6) are abutted in clamping grooves (7) in the inner wall of the through hole (2), and the two ejector rods (6) are upwardly abutted against the support sheet (5);
preferably, the upper end of the through hole (2) is provided with a thread groove (9), and the top cover (3) is installed on the thread groove (9) in a matching manner;
preferably, a coaming (10) is arranged at the upper end of the base cover (1), and the pulling type plugging device comprises a support rod (11) arranged on the inner side wall of the coaming (10), a gear (12) arranged on the support rod (11), a first guide block (13) and a second guide block (14) which are symmetrically arranged on two sides of the gear (12); one end of the first guide block (13) is provided with a first rack (15) matched with the gear (12), the opposite side end of the first guide block is matched with a first sliding groove (16) arranged on the enclosing plate (10), the top end of the first guide block is provided with a retaining ring (17), and a pull rope is wound on the retaining ring (17);
the lower end and the upper end of the side wall of the second guide block (14) are provided with liquid guide holes (14-1), the interior of the second guide block is of a hollow structure, the second guide block (14) is matched with a second sliding groove (18) arranged on the enclosing plate (10), the side end of the second guide block is provided with a second rack (14-2) matched with the gear (12), and the lower end of the second guide block is connected with the blocking block (8);
preferably, the pulling type plugging device comprises a top cover (3-1), a spring (4-1) sleeved at the lower end of the top cover (3-1) and a support sheet (5-1), wherein two ends of the support sheet (5-1) are connected with a thin rope (19), the thin rope (19) penetrates through the top cover (3-1) and is wound on a turntable (20) arranged at the upper end of the top cover (3-1), the turntable (20) is in rotating fit with the top cover (3-1), the top cover (3-1) and the center of the turntable (20) are connected with a positioning block (21), the positioning block (21) is clamped between the top cover (3-1) and the turntable (20), and the upper end of the positioning block is connected with a pulling rope; the center of the support sheet (5-1) is of a hollow structure;
preferably, the pull occlusion device comprises: a cover body (22) arranged at the upper end of the through hole (2), a connecting rod structure (23) which is hinged with each other, a spring (24), a positioning rod (25), a push plate (26) and a pull rope; the upper end of the connecting rod structure (23) is buckled in a clamping groove located on the lower end face of the cover body (22), the lower end of the connecting rod structure (23) is hinged to the push plate (26), the spring (24) is fixed on the side wall of the through hole (2) and connected with the hinged end of the connecting rod structure (23), one end of the positioning rod (25) is propped against the side wall of the through hole (2), the other end of the positioning rod (25) is propped against the hinged end pressing spring (24) of the connecting rod structure (23), a pull rope is wound on the positioning rod (25), and the pull rope penetrates through the cover body (22) and extends to the;
preferably, the push plate (26) is connected with the blocking block (8), and the center of the push plate (26) and the center of the cover body (22) are provided with center holes;
preferably, the cover body (22) is in threaded connection with the through hole;
compared with the prior art, the invention has the beneficial effects that: this dress is installed in the polyurethane holding vessel upper end that is located the hole tip setting of taking out, because the pressure in the holding vessel is greater than external pressure, when using, only need stimulate the stay cord, can make polyurethane holding vessel and external UNICOM, polyurethane upflows to the base and covers the upper end and realize the shutoff of taking out the hole, and the well head of exploitation can be extended to the stay cord, do benefit to remote control, strong to operating condition environment's such as operation of water-logging and the water hole operation of being rich in adaptability, this device simultaneously, small, light in weight, easy to assemble, and is easy and simple to handle.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a partial structural view of embodiment 1 of the present invention;
FIG. 3 is a schematic structural view of embodiment 2 of the present invention;
FIG. 4 is a partial schematic view of the structure of embodiment 2 of the present invention;
FIG. 5 is a schematic structural view of embodiment 3 of the present invention;
FIG. 6 is a partial schematic view of the structure of embodiment 3 of the present invention;
fig. 7 is a partial schematic view of the structure of embodiment 4 of the present invention.
Detailed Description
In order that those skilled in the art will better understand the technical scheme of the invention, the invention is further described in detail in the following with reference to the accompanying drawings and embodiments;
example 1
As shown in fig. 1 and 2, a polyurethane foam plugging device comprises a base cover 1 arranged on a base, wherein a through hole 2 connected with a polyurethane storage tank is arranged in the base cover 1, a pulling type plugging device is arranged at the upper end in the through hole 2, and a plugging block 8 is arranged at the lower end; the pull occlusion device comprises: the device comprises a top cover 3, a spring 4 sleeved at the lower end of the top cover 3, a supporting sheet 5 for pressing the spring 4 and a pulling structure for supporting the supporting sheet 5; the drawing structure comprises a pull rope 27 penetrating through the hollow structure and two ejector rods 6 respectively hinged with the end parts of the pull rope 27, the ejector rods 6 are propped in the clamping grooves 7 in the inner wall of the through hole 2, and the two ejector rods 6 prop the support sheet 5 upwards;
the upper end of the through hole 2 is provided with a thread groove 9, and the top cover 3 is arranged on the thread groove 9 in a matching way;
under normal conditions, the ejector rod 6 is supported in the clamping groove 7 and is pressed on the ejector rod through the pressing force of the top cover 3, the spring 4 and the support piece 5 from top to bottom, the pull rope extends to a well head, when the device is used, the pull rope is pulled to lift the ejector rod to remove the clamping groove 7, the pull rope is released, the support piece 5 is rapidly moved downwards through the resilience force of the spring, the plugging block 8 is ejected out of the through hole 2, and because the pressure of the polyurethane storage tank is greater than the outside, polyurethane liquid foam is left to the outside along the through hole of the top cover 3 to be plugged; when the device is installed, the device is installed from bottom to top, the ejector rod 6 is installed firstly and supported in the clamping groove 7, and the spring 4 and the top cover 3 are installed and are pressed to a proper position through the spiral connection of the top cover 3 and the through hole 2.
Example 2
As shown in fig. 3 and 4, a polyurethane foam plugging device comprises a base cover 1 arranged on a base, a through hole 2 connected with a polyurethane storage tank is arranged in the base cover 1, a pulling type plugging device is arranged at the upper end in the through hole 2, and a plugging block 8 is arranged at the lower end; the upper end of the base cover 1 is provided with a coaming 10, and the pulling type plugging device comprises a support rod 11 arranged on the inner side wall of the coaming 10, a gear 12 arranged on the support rod 11, a first guide block 13 and a second guide block 14 which are symmetrically arranged on the two sides of the gear 12; one end of the first guide block 13 is provided with a first rack 15 matched with the gear 12, the opposite side end of the first guide block is matched with a first chute 16 arranged on the enclosing plate 10, the top end of the first guide block is provided with a retaining ring 17, and a pull rope is wound on the retaining ring 17;
the lower end and the upper end of the side wall of the second guide block 14 are provided with liquid guide holes 14-1, the interior of the second guide block is of a hollow structure, the second guide block 14 is matched with a second sliding groove 18 arranged on the enclosing plate 10, the side end of the second guide block is provided with a second rack 14-2 matched with the gear 12, and the lower end of the second guide block is connected with the plugging block 8;
when the polyurethane plugging device is used, the first guide block 13 moves upwards along the first sliding groove 16 through the pull rope, the first guide block 13 moves upwards to drive the gear 12 to rotate, the second guide block 14 moves downwards along the second sliding groove 18, the second guide block 14 moves downwards to push out the plugging block 8, and polyurethane is reserved outside through the liquid guide hole 14-1 of the second guide block 14.
Example 3
As shown in fig. 5 and 6, a polyurethane foam plugging device comprises a base cover 1 arranged on a base, a through hole 2 connected with a polyurethane storage tank is arranged in the base cover 1, a pulling type plugging device is arranged at the upper end in the through hole 2, and a plugging block 8 is arranged at the lower end; the pulling type plugging device comprises a top cover 3-1, a spring 4-1 sleeved at the lower end of the top cover 3-1 and a support sheet 5-1, wherein two ends of the support sheet 5-1 are connected with a thin rope 19, the thin rope 19 penetrates through the top cover 3-1 and is wound on a turntable 20 arranged at the upper end of the top cover 3-1, the turntable 20 is in rotating fit with the top cover 3-1, the center of the top cover 3-1 and the center of the turntable 20 are connected with a positioning block 21, the positioning block 21 is clamped between the top cover 3-1 and the turntable 20, and the upper end of the positioning block 21 is connected with; the center of the support sheet 5-1 is of a hollow structure;
the support sheet 5-1 is connected to the turntable 20 through the string 19, and the string is tightened by rotating the turntable 20 so that the support sheet 5-1 presses the spring 4-1;
when the device is used, the positioning block 21 is moved out of the top cover 3 and the rotary table 20 by pulling the pull rope, and the rotary table 20 rotates to discharge the thin rope 19, so that the supporting sheet 5-1 pushes out the plugging block 8 under the action of the spring;
the stay cord can directly extend out of a well mouth, the positioning block 21 can be moved upwards through artificial pulling, as an optimal mode, the stay cord can also be connected with a driving device arranged on a base, the stay cord can be pulled through the driving device, a wireless communication module is arranged in the driving device, the device can be driven through the wireless remote control of an outdoor worker, the driving device is an electric, hydraulic or pneumatic telescopic rod, and the end part of the telescopic rod is connected with the stay cord to pull the stay cord.
Example 4
As shown in fig. 7, a polyurethane foam plugging device comprises a base cover 1 arranged on a base, a through hole 2 connected with a polyurethane storage tank is arranged in the base cover 1, a pulling type plugging device is arranged at the upper end in the through hole 2, and a plugging block 8 is arranged at the lower end; the pull occlusion device comprises: a cover body 22 arranged at the upper end of the through hole 2, a connecting rod structure 23, a spring 24, a positioning rod 25, a push plate 26 and a pull rope, wherein the connecting rod structure 23 is hinged with the cover body; the upper end of the connecting rod structure 23 is buckled in a clamping groove on the lower end face of the cover body 22, the lower end of the connecting rod structure 23 is hinged with the push plate 26, the spring 24 is fixed on the side wall of the through hole 2 and connected with the hinged end of the connecting rod structure 23, one end of the positioning rod 25 is propped against the side wall of the through hole 2, the other end of the positioning rod 25 is propped against the hinged end of the connecting rod structure 23 to compress the spring 24, a pull rope is wound on the positioning rod 25, and the pull rope penetrates through the cover body 22;
the push plate 26 is connected with the plugging block 8, the push plate 26 and the center of the cover body 22 are provided with center holes, and the cover body 22 is in threaded connection with the through holes;
the link structure 23 compresses the spring 24 by the action of the positioning rod 25, and in use, the positioning rod 25 is removed by pulling the pulling rope, and the pushing plate 26 moves downward to push out the plugging block 8 by the action of the external force of the spring 24, and the cover body 22 and the central hole of the pushing plate 26 are used for extruding the polyurethane foam.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the invention.
Claims (8)
1. A polyurethane foam plugging device is characterized in that: including setting up base lid (1) on the base, be equipped with through-hole (2) that are connected with the polyurethane holding vessel in base lid (1), the upper end is equipped with in through-hole (2) and draws formula plugging device that draws, and the lower extreme is equipped with plugging block (8).
2. The polyurethane foam plugging device of claim 1, wherein the pull plugging device comprises: the device comprises a top cover, a spring sleeved at the lower end of the top cover, a supporting sheet for pressing the spring and a pulling structure for propping against the supporting sheet; the structure of drawing the support sheet comprises a top cover and a support sheet, and is characterized in that the top cover and the support sheet are of a hollow structure, the drawing structure comprises a pull rope (27) penetrating through the hollow structure and two ejector rods (6) hinged to the end parts of the pull rope (27), the ejector rods (6) are abutted to clamp grooves (7) in the inner wall of the through hole (2), and the two ejector rods (6) are upwardly abutted to the support sheet.
3. Polyurethane foam plugging device according to claim 2, wherein the upper end of the through hole (2) is provided with a threaded groove (9), and the top cap is fittingly mounted on the threaded groove (9).
4. Polyurethane foam plugging device according to claim 1, wherein a coaming (10) is provided at the upper end of the base cover (1), and the pulling type plugging device comprises a support rod (11) provided on the inner side wall of the coaming (10), a gear (12) mounted on the support rod (11), a first guide block (13) and a second guide block (14) symmetrically mounted on both sides of the gear (12); one end of the first guide block (13) is provided with a first rack (15) matched with the gear (12), the opposite side end of the first guide block is matched with a first sliding groove (16) arranged on the enclosing plate (10), the top end of the first guide block is provided with a retaining ring (17), and a pull rope is wound on the retaining ring (17);
liquid guide holes (14-1) are formed in the lower end of the second guide block (14) and the upper end of the side wall, the inner portion of the second guide block is of a hollow structure, the second guide block (14) is matched with a second sliding groove (18) formed in the enclosing plate (10), a second rack (14-2) matched with the gear (12) is arranged at the side end of the second guide block, and the lower end of the second guide block is connected with the blocking block (8).
5. Polyurethane foam plugging device according to claim 1, wherein the pulling type plugging device comprises a top cap, a spring sleeved at the lower end of the top cap, and a support sheet, wherein a string (19) is connected to two ends of the support sheet, the string (19) passes through the top cap and is wound on a turntable (20) arranged at the upper end of the top cap, the turntable (20) is rotatably fitted on the top cap, the top cap is connected with the center of the turntable (20) and is provided with a positioning block (21), the positioning block (21) is clamped between the top cap and the turntable (20), and the upper end of the positioning block is connected with a pulling rope; the center of the support sheet is of a hollow structure.
6. The polyurethane foam plugging device of claim 1, wherein the pull plugging device comprises: a cover body (22) arranged at the upper end of the through hole (2), a connecting rod structure (23) which is hinged with each other, a spring, a positioning rod (25), a push plate (26) and a pull rope; the upper end lock of connecting rod structure (23) is in the draw-in groove that is located terminal surface under lid (22), and the lower extreme and push pedal (26) of connecting rod structure (23) are articulated, the spring is fixed on the lateral wall of through-hole (2), and links to each other with the hinged end of connecting rod structure (23), locating lever (25) one end top is held at through-hole (2) lateral wall, and the hinged end hold-down spring at connecting rod structure (23) is held in the other end top, twines the stay cord on locating lever (25), the stay cord passes lid (22) and stretches to the outer end.
7. Polyurethane foam plugging device according to claim 6, wherein the push plate (26) is connected to the plugging block (8), the push plate (26) and the cover body (22) being centrally provided with a central hole.
8. Polyurethane foam plugging device according to claim 6, wherein the cap (22) is screwed to the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735417.0U CN211058765U (en) | 2019-05-22 | 2019-05-22 | Polyurethane foam plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920735417.0U CN211058765U (en) | 2019-05-22 | 2019-05-22 | Polyurethane foam plugging device |
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| Publication Number | Publication Date |
|---|---|
| CN211058765U true CN211058765U (en) | 2020-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920735417.0U Active CN211058765U (en) | 2019-05-22 | 2019-05-22 | Polyurethane foam plugging device |
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|---|---|
| CN (1) | CN211058765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980621A (en) * | 2019-05-22 | 2020-11-24 | 西安青果新材料科技开发有限公司 | Polyurethane foam plugging device |
-
2019
- 2019-05-22 CN CN201920735417.0U patent/CN211058765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111980621A (en) * | 2019-05-22 | 2020-11-24 | 西安青果新材料科技开发有限公司 | Polyurethane foam plugging device |
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