CN216110609U - Self-tightening packing box - Google Patents
Self-tightening packing box Download PDFInfo
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- CN216110609U CN216110609U CN202122621918.6U CN202122621918U CN216110609U CN 216110609 U CN216110609 U CN 216110609U CN 202122621918 U CN202122621918 U CN 202122621918U CN 216110609 U CN216110609 U CN 216110609U
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Abstract
The utility model discloses a self-tightening packing box which comprises a packing box body and a plurality of flexible packing sets movably sleeved in the packing box body, wherein an oil pumping polished rod penetrates through the packing box body, the top end and the bottom end of the oil pumping polished rod respectively extend to the upper side and the lower side of the packing box body, the flexible packing sets movably on the oil pumping polished rod, an outer edge is integrally arranged at the bottom of the outer side of the packing box body, an internal thread joint is movably sleeved on the packing box body, and a sealing ring which is movably contacted with the inner wall of the top of the internal thread joint is fixedly bonded at the top of the outer edge. According to the utility model, a downward continuous tightening elastic force is prefabricated on the flexible packing after installation, so that the flexible packing can be automatically and continuously pressed according to actual needs after installation, frequent manual adjustment and pressing by personnel are not needed, the purpose of self-tightening the flexible packing when the flexible packing is worn in use is realized, the flexible packing can be disassembled, assembled and replaced, and the use requirements are met.
Description
Technical Field
The utility model relates to the technical field of packing box gland, in particular to a self-tightening packing box.
Background
The packing is also called as sealing packing, and is usually woven by soft threadlike objects, and strip-shaped objects with square or rectangular or round cross sections are usually coiled or bent into a ring to be filled in a sealing cavity of a packing box, so that sealing is realized; the packing box is the main sealing equipment of beam-pumping unit well head, if the packing is sealed to be inefficacy, can cause the well head phenomenon such as oil that runs out.
Most of the existing packing boxes of the pumping unit well are manually adjusted packing boxes at present, namely after the packing boxes are installed and worn in use, most of the packing boxes manually adjust a gland of the packing boxes to tightly press the packing boxes, so that the packing boxes are extruded to deform, gaps between rubber packing boxes and a polished rod are reduced, and sealing is realized; the self-tightening packing box has the defect that continuous automatic pressing adjustment is inconvenient to carry out after installation, the regular manual adjustment of personnel is needed, time and labor are wasted, and the use requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a self-tightening packing box.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the self-tightening packing box comprises a packing box body and a plurality of flexible packings movably sleeved in the packing box body, wherein an oil pumping polished rod penetrates through the packing box body, the top end and the bottom end of the oil pumping polished rod respectively extend to the upper part and the lower part of the packing box body, the flexible packings are movably sleeved on the oil pumping polished rod, the bottom of the outer side of the packing box body is integrally provided with an outer edge, an internal thread joint is movably sleeved on the packing box body, the top of the outer edge is fixedly bonded with a sealing ring movably contacted with the inner wall of the top of the internal thread joint, the outer side of the packing box body is provided with external threads, positioning slots are formed in two sides of the top of the packing box body, and a self-tightening packing gland mechanism is arranged on the packing box body;
the self-tightening packing gland mechanism comprises a circular gland movably sleeved on the outer side of a packing box body, the bottom of the circular gland is provided with an opening, the inner wall of the top of the circular gland is fixedly connected with two positioning insertion rods, the outer sides of the positioning insertion rods are movably contacted with the inner parts of corresponding positioning insertion grooves, a first T-shaped block and a second T-shaped block are sleeved on the two positioning insertion rods in a sliding manner, the bottom of the second T-shaped block extends into the packing box body and is movably contacted with the top of a flexible packing, a spring is fixedly connected between the top of the second T-shaped block and the bottom of the first T-shaped block, the circular gland is movably sleeved on the first T-shaped block, the spring and the second T-shaped block are movably sleeved on the oil pumping polished rod, the outside of circular gland is rotated the cover and is equipped with screw thread drive assembly, and the right side bottom fixedly connected with of packing box body has the instruction subassembly with screw thread drive mechanism matched with.
Preferably, the screw driving assembly comprises a rotating pipe which is rotatably sleeved on the outer side of the circular gland, handle rods are fixedly connected to the tops of four sides of the rotating pipe, a nut which is located below the circular gland is fixedly connected in the rotating pipe, and the nut is in threaded connection with the outer side of the external thread.
Preferably, instruct the subassembly including fixed connection at the branch of packing box body right side bottom, the top right side fixedly connected with scale of branch, the scale is located the right side of bull stick and cooperatees with the bull stick.
Preferably, round through holes are formed in the top of the first T-shaped block and the bottom of the second T-shaped block, and the inner wall of each round through hole is in movable contact with the outer side of the oil pumping polished rod.
Preferably, the bottom of the first T-shaped block is provided with a first circular groove, the top of the second T-shaped block is provided with a second circular groove, and the top end and the bottom end of the spring are fixedly connected with the inner wall of the top of the first circular groove and the inner wall of the bottom of the second circular groove respectively.
Preferably, first round holes are formed in two sides of the bottom of the first T-shaped block, second round holes are formed in two sides of the top of the second T-shaped block, and the inner wall of each first round hole and the inner wall of each second round hole are connected with the outer sides of the corresponding positioning insertion rods in a sliding mode.
Preferably, a third round hole is formed in the inner wall of the top of the round gland, and the inner wall of the third round hole is in movable contact with the top of the outer side of the first T-shaped block.
Preferably, a bearing is fixedly sleeved in the rotating pipe, and the inner side of an inner ring of the bearing is fixedly connected with the outer side of the circular gland.
Compared with the prior art, the utility model has the beneficial effects that:
the flexible packing is firstly placed downwards in the packing box body before installation, the circular gland is downwards moved to drive the first T-shaped block to downwards move, the first T-shaped block is driven by the first T-shaped block to downwards insert into the packing box body through the spring, the second T-shaped block is driven by the first T-shaped block to downwards insert into the packing box body through the spring and is pressed at the top of the flexible packing, the circular gland drives the two positioning insertion rods to respectively downwards insert into the corresponding positioning slots, the circular gland is downwards and gradually sleeved on the outer side of the packing box body, the circular gland further drives the nut to downwards move through the rotating pipe, when the nut downwards moves to be in contact with the external thread on the outer side of the box body, the handle rod is positively pulled to drive the rotating pipe to positively rotate at the moment, the rotating pipe drives the nut to gradually downwards rotate on the external thread, at the moment, the nut sequentially passes through the rotating pipe and the circular gland to drive the first T-shaped block to continuously downwards move, the first T-shaped block downwards compresses the spring, personnel can judge the downwards moving position by aligning the rotating pipe with the position on the graduated scale, the compression degree of the spring is further conveniently judged, and after the compression is properly adjusted, the rotating pipe is stopped rotating, so that the installation is completed;
the spring in the compressed state always has a downward tightening elastic force on the second T-shaped block, so that the second T-shaped block always has a downward tightening elastic force on the flexible packing, after the oil pumping polished rod abrades the flexible packing, the flexible packing can be extruded and deformed under the tightening elasticity, so that the inner side of the flexible packing is in full contact with the oil pumping polished rod, thereby ensuring the sealing stability, being capable of automatically and continuously pressing the flexible packing after being installed, when the flexible packing is required to be replaced subsequently, then reverse pulling handle bar makes it drive the commentaries on classics pipe antiport, and is on the same way completely opposite with commentaries on classics pipe forward rotation's direction of motion, and the nut changes gradually upwards and the rotatory separation of external screw thread this moment, and circular gland changes upwards and the separation of packing box body into this moment, and personnel alright shift up the second T-shaped piece and remove the sheltering from to flexible packing, alright take out the change with flexible packing.
According to the utility model, a downward continuous tightening elastic force is prefabricated on the flexible packing after installation, so that the flexible packing can be automatically and continuously pressed according to actual needs after installation, frequent manual adjustment and pressing by personnel are not needed, the purpose of self-tightening the flexible packing when the flexible packing is worn in use is realized, the flexible packing can be disassembled, assembled and replaced, and the use requirements are met.
Drawings
Fig. 1 is a schematic structural diagram of a self-tightening packing box according to the present invention;
fig. 2 is a schematic sectional structure view of fig. 1.
In the figure: 100. a packing box body; 101. an internal thread joint; 102. a flexible packing; 200. a polish rod is pumped; 1. positioning the slot; 2. a circular gland; 3. a second T-shaped block; 4. a first T-shaped block; 5. a third circular hole; 6. a spring; 7. positioning the inserted rod; 8. pipe rotation; 9. a handle bar; 10. A nut; 11. a second circular groove; 12. a graduated scale; 13. an external thread; 14. and a bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the self-tightening packing box includes a packing box body 100 and a plurality of flexible packing 102 movably sleeved in the packing box body 100, an oil pumping polished rod 200 penetrates through the packing box body 100, the top end and the bottom end of the oil pumping polished rod 200 respectively extend to the upper side and the lower side of the packing box body 100, the flexible packing 102 is movably sleeved on the oil pumping polished rod 200, an outer edge is integrally arranged at the bottom of the outer side of the packing box body 100, an internal thread joint 101 is movably sleeved on the packing box body 100, a sealing ring in movable contact with the inner wall of the top of the internal thread joint 101 is fixedly bonded at the top of the outer edge, external threads 13 are arranged on the outer side of the packing box body 100, positioning slots 1 are respectively arranged at two sides of the top of the packing box body 100, and a self-tightening type gland packing mechanism is arranged on the packing box body 100;
the self-tightening packing gland mechanism comprises a circular gland 2 movably sleeved on the outer side of a packing box body 100, the bottom of the circular gland 2 is provided with an opening, the inner wall of the top of the circular gland 2 is fixedly connected with two positioning insertion rods 7, the outer sides of the positioning insertion rods 7 are movably contacted with the inner parts of corresponding positioning insertion grooves 1, a first T-shaped block 4 and a second T-shaped block 3 are sleeved on the two positioning insertion rods 7 in a sliding manner, the bottom of the second T-shaped block 3 extends into the packing box body 100 and is movably contacted with the top of a flexible packing 102, a spring 6 is fixedly connected between the top of the second T-shaped block 3 and the bottom of the first T-shaped block 4, the circular gland 2 is movably sleeved on the first T-shaped block 4, the spring 6 and the second T-shaped block 3 are movably sleeved on the oil pumping polished rod 200, the outer side of the circular gland 2 is rotatably sleeved with a thread driving assembly, and the bottom of the right side of the packing box body 100 is fixedly connected with an indicating assembly matched with the thread driving mechanism;
the screw thread driving assembly comprises a rotating pipe 8 which is rotatably sleeved on the outer side of the circular gland 2, the tops of four sides of the rotating pipe 8 are fixedly connected with handle rods 9, a nut 10 which is positioned below the circular gland 2 is fixedly connected in the rotating pipe 8, and the nut 10 is in threaded connection with the outer side of an external screw thread 13;
the indicating assembly comprises a supporting rod fixedly connected to the bottom of the right side of the packing box body 100, the dividing ruler 12 is fixedly connected to the right side of the top of the supporting rod, and the dividing ruler 12 is located on the right side of the rotating pipe 8 and matched with the rotating pipe 8.
In the utility model, the top of a first T-shaped block 4 and the bottom of a second T-shaped block 3 are both provided with circular through holes, the inner walls of the circular through holes are movably contacted with the outer side of an oil pumping polished rod 200, the bottom of the first T-shaped block 4 is provided with a first circular groove, the top of the second T-shaped block 3 is provided with a second circular groove 11, the top end and the bottom end of a spring 6 are respectively and fixedly connected with the inner wall of the top of the first circular groove and the inner wall of the bottom of the second circular groove 11, both sides of the bottom of the first T-shaped block 4 are both provided with first circular holes, both sides of the top of the second T-shaped block 3 are both provided with second circular holes, the inner walls of the first circular holes and the inner walls of the second circular holes are both in sliding connection with the outer sides of corresponding positioning inserted rods 7, the inner wall of the top of a circular gland 2 is provided with third circular hole 5, and the inner wall of the third circular hole 5 is movably contacted with the top of the outer side of the first T-shaped block 4, a bearing 14 is fixedly sleeved in a rotating pipe 8, the inner side of the inner ring of the bearing 14 is fixedly connected with the outer side of the circular gland 2, and the flexible packing 102 is prefabricated with a downward continuous tightening elastic force after being installed, so that the flexible packing 102 can be automatically and continuously pressed all the time according to actual needs after being installed, frequent manual adjustment and pressing by personnel are not needed, the purpose of self-tightening the flexible packing 102 when the flexible packing 102 is worn in use is realized, the flexible packing 102 can be disassembled and replaced, and the use requirements are met.
The working principle is as follows: when in use, before installation, firstly, the flexible packing 102 is placed downwards in the packing box body 100 and sleeved on the polish rod 200, at this time, the circular gland 2 is moved downwards, the circular gland 2 drives the first T-shaped block 4 to slide downwards on the polish rod 200, the first T-shaped block 4 drives the second T-shaped block 3 to be inserted downwards into the packing box body 100 through the spring 6 and pressed on the top of the flexible packing 102, meanwhile, the circular gland 2 drives the two positioning insertion rods 7 to be respectively inserted downwards into the corresponding positioning insertion slots 1, the circular gland 2 is gradually sleeved on the outer side of the packing box body 100 downwards, wherein when the circular gland 2 moves downwards, the nut 10 is also driven to move downwards through the rotating pipe 8, when the nut 10 moves downwards to be in contact with the outer thread 13 on the outer side of the packing box body 100, the handle rod 9 is pulled forwards to drive the rotating pipe 8 to rotate forwards, the rotating pipe 8 drives the nut 10 to gradually rotate downwards on the outer thread 13, at the moment, the nut 10 which rotates and moves downwards on the external thread 13 drives the rotary pipe 8 to move downwards, the rotary pipe 8 drives the circular gland 2 to continue to move downwards through the bearing 14, the circular gland 2 drives the two positioning insertion rods 7 to slide downwards in the second T-shaped block 3, meanwhile, the circular gland 2 drives the first T-shaped block 4 to compress the spring 6 downwards, so that the spring 6 is in a compression state, a worker can judge the downward movement position by aligning the rotary pipe 8 to the position on the graduated scale 12, the compression degree of the spring 6 is further conveniently judged, and after the compression is properly adjusted, the rotary pipe 8 stops rotating, and the installation is completed;
at the moment, the spring 6 in a compressed state always has a downward tightening elastic force on the second T-shaped block 3, so that the second T-shaped block 3 always has a downward tightening elastic force on the flexible packing 102, after the oil pumping polished rod 200 wears the flexible packing 102, the flexible packing 102 can be extruded and deformed under the tightening elastic force, the inner side of the flexible packing 102 is fully contacted with the oil pumping polished rod 200, and the sealing stability is further ensured, and the flexible packing 102 can be automatically and always pressed according to actual needs after installation by utilizing a preset tightening elastic force mode, so that frequent manual adjustment of personnel is not needed, and the purpose of self-tightening the flexible packing 102 is realized;
when flexible packing 102 is required to be replaced subsequently, the handle rod 9 is pulled reversely to drive the rotating pipe 8 to rotate reversely, the movement direction of the rotating pipe 8 to rotate is completely opposite to the forward rotation direction of the rotating pipe, the nut 10 is gradually and upwards separated from the external thread 13 in a rotating mode, the circular gland 2 is upwards separated from the packing box body 100 in a converting mode, the circular gland 2 upwards removes the extrusion on the first T-shaped block 4, personnel can upwards move the second T-shaped block 3 to drive the first T-shaped block 4 to upwards move through the spring 6, the second T-shaped block 3 upwards removes the shielding of the flexible packing 102, and then the flexible packing 102 can be taken out and replaced.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. A self-tightening packing box comprises a packing box body (100) and a plurality of flexible packing (102) movably sleeved in the packing box body (100), an oil pumping polished rod (200) penetrates through the packing box body (100), the top end and the bottom end of the oil pumping polished rod (200) respectively extend to the upper part and the lower part of the packing box body (100), it is characterized in that the flexible packing (102) is movably sleeved on the oil pumping polished rod (200), the bottom of the outer side of the packing box body (100) is integrally provided with an outer edge, the packing box body (100) is movably sleeved with an internal thread joint (101), the top of the outer edge is fixedly bonded with a sealing ring which is movably contacted with the inner wall of the top of the internal thread joint (101), the packing box body (100) is provided with external threads (13) on the outer side, positioning slots (1) are formed in the two sides of the top of the packing box body (100), and a self-tightening packing gland mechanism is arranged on the packing box body (100);
the self-tightening packing gland mechanism comprises a circular gland (2) movably sleeved on the outer side of a packing box body (100), the bottom of the circular gland (2) is provided with an opening, the inner wall of the top of the circular gland (2) is fixedly connected with two positioning insertion rods (7), the outer sides of the positioning insertion rods (7) are movably contacted with the inner parts of corresponding positioning slots (1), a first T-shaped block (4) and a second T-shaped block (3) are slidably sleeved on the two positioning insertion rods (7), the bottom of the second T-shaped block (3) extends into the box body packing (100) and is movably contacted with the top of a flexible packing (102), a spring (6) is fixedly connected between the top of the second T-shaped block (3) and the bottom of the first T-shaped block (4), the circular gland (2) is movably sleeved on the first T-shaped block (4), the spring (6) and the second T-shaped block (3) are movably sleeved on an oil pumping polished rod (200), the outer side of the round gland (2) is rotatably sleeved with a thread driving assembly, and the right bottom of the packing box body (100) is fixedly connected with an indicating assembly matched with the thread driving mechanism.
2. The self-tightening packing box according to claim 1, wherein the screw driving assembly includes a rotating tube (8) rotatably sleeved outside the circular gland (2), a handle rod (9) is fixedly connected to the top of each of the four sides of the rotating tube (8), a nut (10) located below the circular gland (2) is fixedly connected to the inside of the rotating tube (8), and the nut (10) is in threaded connection with the outside of the external screw (13).
3. The self-tightening packing box according to claim 1, wherein the indicating component comprises a support rod fixedly connected to the bottom of the right side of the packing box body (100), a graduated scale (12) is fixedly connected to the top right side of the support rod, and the graduated scale (12) is located on the right side of the rotating pipe (8) and matched with the rotating pipe (8).
4. The self-tightening packing box according to claim 1, wherein the top of the first T-shaped block (4) and the bottom of the second T-shaped block (3) are both provided with circular through holes, and the inner walls of the circular through holes are movably contacted with the outer side of the oil pumping polished rod (200).
5. The self-tightening packing box according to claim 1, wherein the first T-shaped block (4) has a first circular groove formed at the bottom thereof, the second T-shaped block (3) has a second circular groove (11) formed at the top thereof, and the top and bottom ends of the spring (6) are fixedly connected to the top inner wall of the first circular groove and the bottom inner wall of the second circular groove (11), respectively.
6. The self-tightening packing box according to claim 1, wherein the first T-shaped block (4) has first circular holes formed on both sides of the bottom thereof, the second T-shaped block (3) has second circular holes formed on both sides of the top thereof, and the inner walls of the first and second circular holes are slidably connected to the outer sides of the corresponding positioning insertion rods (7).
7. The self-tightening packing box according to claim 1, wherein a third round hole (5) is formed in the inner wall of the top of the circular gland (2), and the inner wall of the third round hole (5) is in movable contact with the top of the outer side of the first T-shaped block (4).
8. The self-tightening packing box according to claim 2, wherein the rotating tube (8) is internally fixed with a bearing (14), and the inner side of the inner ring of the bearing (14) is fixedly connected with the outer side of the circular gland (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122621918.6U CN216110609U (en) | 2021-10-29 | 2021-10-29 | Self-tightening packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122621918.6U CN216110609U (en) | 2021-10-29 | 2021-10-29 | Self-tightening packing box |
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| Publication Number | Publication Date |
|---|---|
| CN216110609U true CN216110609U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122621918.6U Active CN216110609U (en) | 2021-10-29 | 2021-10-29 | Self-tightening packing box |
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| CN (1) | CN216110609U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753798A (en) * | 2022-05-16 | 2022-07-15 | 帕特恩(大庆)石油科技有限公司 | Multistage sealing protection device for pneumatic isobaric pumping unit well head |
| CN115306338A (en) * | 2022-10-10 | 2022-11-08 | 克拉玛依红山油田有限责任公司 | Double-cavity automatic deviation-adjusting wellhead packing box |
-
2021
- 2021-10-29 CN CN202122621918.6U patent/CN216110609U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753798A (en) * | 2022-05-16 | 2022-07-15 | 帕特恩(大庆)石油科技有限公司 | Multistage sealing protection device for pneumatic isobaric pumping unit well head |
| CN114753798B (en) * | 2022-05-16 | 2022-10-14 | 帕特恩(大庆)石油科技有限公司 | Multistage sealing protection device for pneumatic isobaric pumping unit well head |
| CN115306338A (en) * | 2022-10-10 | 2022-11-08 | 克拉玛依红山油田有限责任公司 | Double-cavity automatic deviation-adjusting wellhead packing box |
| CN115306338B (en) * | 2022-10-10 | 2023-02-03 | 克拉玛依红山油田有限责任公司 | Double-cavity automatic deviation-adjusting wellhead packing box |
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