CN114277846A - Well lid locking device - Google Patents
Well lid locking device Download PDFInfo
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- CN114277846A CN114277846A CN202111555954.5A CN202111555954A CN114277846A CN 114277846 A CN114277846 A CN 114277846A CN 202111555954 A CN202111555954 A CN 202111555954A CN 114277846 A CN114277846 A CN 114277846A
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- well lid
- rod
- main shaft
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Abstract
The invention discloses a well lid locking device, which relates to the field of urban road facilities and comprises the following components: a sleeve structure; the middle part of the main shaft rod is provided with a boss, and the upper part of the main shaft rod is arranged in the sleeve structure; the first connecting sleeve is sleeved outside the sleeve structure; one end of the fixed sleeve is connected with the sleeve structure, and the other end of the fixed sleeve is connected with the boss; the second connecting sleeve is movably arranged at the lower part of the main shaft rod along the vertical direction; the middle part of the first connecting rod is hinged with one end of the second connecting rod, the plurality of supporting rod structures are arranged on the periphery of the sleeve structure, one end of the first connecting rod is hinged with the first connecting sleeve, the other end of the first connecting rod is hinged with the second connecting sleeve, and the second connecting sleeve can drive the other end of the first connecting rod to be clamped with the well ring; the problems that the well lid is stolen, the well lid is displaced, the top cover supports and the like are solved, the risk of the urban road well lid is reduced, and the design of pure machinery is adopted, so that the structure is simple and stable.
Description
Technical Field
The invention belongs to the field of urban road facilities, and particularly relates to a well lid locking device.
Background
The existing well covers of urban roads are large in size and complex in type. The common well cover is easy to be disassembled and stolen; the conditions of corrosion in the well, hinge fracture and the like caused by overlong service life of the well cover exist, and the accident of hurting people and vehicles caused by lifting the well cover by vehicle rolling is likely to happen; meanwhile, the partial road well covers still have the condition of gas jacking or rain sewage jacking, so that great potential safety hazards exist.
Disclosure of Invention
The invention aims to provide a well lid locking device aiming at the defects in the prior art, the well lid locking device drives a first supporting rod to be unfolded and fixedly clamped with a well ring of a well lid when a second connecting sleeve moves downwards along a spindle shaft, so that the problems of well lid theft, well lid displacement, top cover jacking and the like are solved, the risk of urban road well lids is reduced, and the well lid locking device is simple and stable in structure due to the adoption of a purely mechanical design.
In order to achieve the above object, the present invention provides a well lid locking device, comprising:
the sleeve structure is arranged at the position of the circle center of the well cover in a penetrating manner;
a boss is arranged in the middle of the main shaft rod along the circumferential direction, and the upper part of the main shaft rod is arranged inside the sleeve structure;
the first connecting sleeve is sleeved outside the sleeve structure;
one end of the fixed sleeve is connected with the sleeve structure, the other end of the fixed sleeve is connected with the boss, and the axial projection of the fixed sleeve is partially overlapped with the axial projection of the first connecting sleeve;
the second connecting sleeve is movably arranged at the lower part of the main shaft rod along the vertical direction;
a plurality of bracing piece structures, bracing piece structure includes head rod and second connecting rod, the middle part of head rod with the one end of second connecting rod is articulated, and is a plurality of the bracing piece structure set up in sleeve structure's periphery, the one end of head rod with first connecting sleeve is articulated, the other end of second connecting rod with second connecting sleeve is articulated, second connecting sleeve can drive the other end of head rod with the walling crib looks joint of well lid.
Optionally, a first via hole has been seted up at the center of well lid, the sleeve structure includes:
the lower surface of the supporting sheet is attached to the upper surface of the well lid, and a second through hole is formed in the middle of the supporting sheet;
and the top of the sleeve part is communicated with the second through hole, the outer wall of the sleeve part is attached to the inner wall of the first through hole, and the lower part of the sleeve part is provided with an external thread.
Optionally, a key hole is formed in the top end of the main shaft rod, the outer wall of the upper portion of the main shaft rod is attached to the inner wall of the sleeve portion, and an external thread is formed in the lower portion of the main shaft rod.
Optionally, the keyway is an internal cam cylinder.
Optionally, a groove is circumferentially formed at the bottom of the sleeve portion along the inner wall, and the groove is matched with the boss.
Optionally, first connecting sleeve includes first sleeve and a plurality of first connecting plate, first sleeve with the sleeve structure is laminated mutually, and is a plurality of first connecting plate is in first telescopic periphery evenly distributed, first connecting plate sets up along vertical direction, first hinge hole has been seted up on the first connecting plate for with the one end of first connecting rod is articulated.
Optionally, the other end of head rod is provided with the flexion, the flexion with the curb periphery profile of well lid cooperatees.
Optionally, the fixing sleeve is a circular groove, a main shaft rod through hole is formed in the bottom wall of the fixing sleeve, the inner wall of the main shaft rod through hole is matched with the outer wall of the lower portion of the main shaft rod, the bottom wall of the fixing sleeve is in clamping fit with the boss, and the side wall of the fixing sleeve is in threaded connection with the lower portion of the sleeve portion.
Optionally, the second connecting sleeve includes a second sleeve and a plurality of second connecting plates, the second sleeve with the lower part threaded connection of main shaft pole, it is a plurality of the second connecting plate is in the telescopic periphery evenly distributed of second, the second connecting plate sets up along vertical direction, seted up the second hinge hole on the second connecting plate, be used for with the other end of second connecting rod is articulated.
Optionally, still include spacing pad, spacing pad passes through the bolt fastening in the bottom of main shaft pole, spacing pad with the spacing cooperation of second connecting sleeve.
The invention provides a well lid locking device, which has the beneficial effects that: this well lid locking device makes its and walling crib joint through the expansion of first connecting rod, it is stolen to solve the well lid, well lid displacement and well lid top support scheduling problem, reduce urban road well lid's risk, this locking device adopts pure mechanical design in addition, do not influence well lid top vehicle pedestrian's normal current, moreover, the steam generator is simple in structure and stable, when the well lid is opened in needs, only need operate on the well lid just can the unblock fast, and is easy and simple to handle, and the processing preparation degree of difficulty is low in addition, easily controls processing cost and batch production.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows an exploded view of the structure of a manhole cover locking device according to an embodiment of the present invention.
Fig. 2 shows a state diagram of a well lid locking device when retracted according to an embodiment of the invention.
Fig. 3 shows a deployed state diagram of a manhole cover locking device according to an embodiment of the invention.
Fig. 4 shows a schematic structural view of a sleeve structure according to an embodiment of the invention.
Fig. 5 shows a bottom view of fig. 4.
Fig. 6 shows a schematic structural view of a locking bushing according to an embodiment of the invention.
Fig. 7 shows a top view of fig. 6.
Fig. 8 shows a schematic structural view of a first connection sleeve according to an embodiment of the invention.
Fig. 9 shows a top view of fig. 8.
Description of reference numerals:
1. a sleeve structure; 2. a main shaft rod; 3. a boss; 4. a first connecting sleeve; 5. fixing the sleeve; 6. a second connecting sleeve; 7. a first connecting rod; 8. a second connecting rod; 9. a support sheet; 10. a sleeve portion; 11. a key hole; 12. a first sleeve; 13. a first connecting plate; 14. a bending section; 15. a main shaft rod via hole; 16. a groove; 17. a limiting pad.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a well lid locking device, comprising:
the sleeve structure is arranged at the position of the circle center of the well cover in a penetrating manner;
the middle part of the main shaft rod is provided with a boss along the circumferential direction, and the upper part of the main shaft rod is arranged in the sleeve structure;
the first connecting sleeve is sleeved outside the sleeve structure;
one end of the fixed sleeve is connected with the sleeve structure, the other end of the fixed sleeve is connected with the boss, and the axial projection of the fixed sleeve is partially overlapped with the axial projection of the first connecting sleeve;
the second connecting sleeve is movably arranged at the lower part of the main shaft rod along the vertical direction;
a plurality of bracing piece structures, bracing piece structure includes head rod and second connecting rod, and the middle part of head rod is articulated with the one end of second connecting rod, and a plurality of bracing piece structures set up in sleeve structure's periphery, and the one end of head rod is articulated with first connecting sleeve, and the other end and the second connecting sleeve of second connecting rod are articulated, and the second connecting sleeve can drive the other end of head rod and the walling crib looks joint of well lid.
Specifically, the locking device is arranged at the circle center of the well lid, the upper part of the main shaft rod penetrates through the sleeve structure, workers can operate the main shaft rod to enable the well lid to be switched between a locking state and an unlocking state, the support rod structure is hinged with other structural connection modes and the internal structure of the support rod structure, when the second connecting sleeve moves downwards, the first connecting rod can be unfolded to be clamped with a well ring of the well lid, the well lid is enabled to be in the locking state, the problem that the well lid is stolen or jacked is solved, when the second connecting sleeve moves upwards, the first connecting rod can be contracted to be not connected with the well ring of the well lid, the well lid is enabled to be in the unlocking state, and therefore the well lid can be opened to carry out normal underground maintenance; the fixed sleeve is sleeved at the periphery of the bottom of the sleeve structure, one end of the fixed sleeve is connected with the sleeve structure, the other end of the fixed sleeve is connected with the boss in a clamping mode, the fixed sleeve can limit the first connecting sleeve and the main shaft rod to move downwards relative to the sleeve structure, the hinge point of the first connecting rod and the first connecting sleeve is guaranteed, the center of the circle can be used as the rotating center, and the other end of the first connecting rod can rotate.
In one embodiment, at least one supporting rod structure can be arranged on the periphery of the fixing sleeve, as long as the first supporting rod in the supporting rod structure can exceed the projection area of the well lid, the first supporting rod can be clamped with the well ring of the well lid, a locking state is formed, however, the more the groups of the supporting rod structures are, the larger the contact area is when the first supporting rod is clamped with the well ring, the locking strength of the well lid is improved, and the displacement and jacking phenomena of the well lid are reduced.
Optionally, first via hole has been seted up at the center of well lid, and the sleeve structure includes:
the lower surface of the supporting sheet is attached to the upper surface of the well lid, and a second through hole is formed in the middle of the supporting sheet;
and the top of the sleeve part is communicated with the second through hole, the outer wall of the sleeve part is attached to the inner wall of the first through hole, and the lower part of the sleeve part is provided with external threads.
Specifically, the supporting sheet is flatly laid on the upper surface of the well lid, the middle of the supporting sheet is provided with a second through hole, and the top end of the main shaft rod can be exposed at a position which can be contacted above the well lid, so that a worker can conveniently control the locking device, and the passing of vehicles and pedestrians above the locking device is not influenced; the sleeve part surrounds the main shaft rod inside, effectively protects the top end of the main shaft rod, and the outer wall of the sleeve part is provided with the external thread, so that the screwed piece on the sleeve part can fix the first connecting sleeve, the first connecting sleeve is prevented from moving along the vertical direction, the first connecting rod cannot be unfolded, and the well lid cannot be locked.
Optionally, a key hole is formed at the top end of the main shaft rod, the outer wall of the upper portion of the main shaft rod is attached to the inner wall of the sleeve portion, and an external thread is formed at the lower portion of the main shaft rod.
The main shaft rod is of a straight rod structure, the upper portion of the main shaft rod completely penetrates through the sleeve structure, the top end of the main shaft rod is exposed inside the upper end of the sleeve portion, in addition, a key hole is formed in the top end, the key hole can be rotated through a key, the main shaft rod rotates, through the interaction of threaded connection, the second connecting sleeve moves in the vertical direction on the lower portion of the main shaft rod, and therefore the well cover can be self-locked by operating above the well cover; the locking device adopts a purely mechanical structure, and the transmission structure is stable; only the lower part of main shaft pole sets up the external screw thread, consequently when the main shaft pole rotates, sleeve structure or first connecting sleeve remain motionless, and rotation or displacement also can not appear in the fixed sleeving, and the head rod only receives the effort that transmits the second connecting rod by the second connecting sleeve in the middle part position, makes the head rod rotate as the centre of a circle around its pin joint with first connecting sleeve to realize the other end formation of head rod and expand or the condition of shrink.
Optionally, the keyway is an internal cam cylinder.
Specifically, the key hole adopts interior triangle lock core, and the durability is strong, and the stable in structure of lock core, withstand voltage, difficult emergence are warp, can also adapt to abominable outdoor environment, and triangle lock core can accomplish a key and open many locks moreover, improves workman's maintenance efficiency greatly.
Optionally, the bottom of the sleeve portion is circumferentially provided with a groove along the inner wall, and the groove is matched with the boss.
Specifically, the bottom of the sleeve part is provided with a groove, the groove can completely accommodate the boss, the bottom surface of the boss is flush with the bottom surface of the sleeve part, the groove can prevent the main shaft rod from passing through one side of the support sheet, the upward movement of the main shaft rod is limited, and the normal use of the locking device is ensured.
Optionally, first connecting sleeve includes first sleeve and a plurality of first connecting plate, and first sleeve and sleeve structure are laminated mutually, and a plurality of first connecting plates are at first telescopic periphery evenly distributed, and first connecting plate sets up along vertical direction, has seted up first hinge hole on the first connecting plate for it is articulated with the one end of first connecting rod.
Specifically, the first connecting sleeve comprises a first sleeve and a plurality of first connecting plates, the inner wall of the first sleeve is attached to the outer wall of the sleeve structure, and the inner side of the first sleeve is a smooth surface, so that the first sleeve and the smooth surface cannot rotate synchronously, and the stability of the hinged position of the first connecting rod and the first connecting plates is ensured; the quantity of first connecting plate is corresponding with bracing piece structure's group number, guarantees that bracing piece structure evenly sets up in first connecting sleeve's periphery, and when the other end of head rod and walling crib joint, every head rod atress is the same, avoids causing this locking device to appear warping the problem.
In one embodiment, the support rod structure is provided with two groups, and the two first connecting plates form an included angle of 180 degrees.
Optionally, the other end of head rod is provided with the flexion, and the flexion cooperatees with the walling crib periphery profile of well lid.
The other end of the first connecting rod is provided with a bending portion, the bending portion is attached to the periphery profile of the well ring after being bent, the first connecting rod is in line contact with the clamping position of the well ring, the clamping area is increased, and the locking strength of the locking device to the well cover is improved.
Optionally, the fixing sleeve is a circular groove, a main shaft rod through hole is formed in the bottom wall of the fixing sleeve, the inner wall of the main shaft rod through hole is matched with the outer wall of the lower portion of the main shaft rod, the bottom wall of the fixing sleeve is in clamping fit with the boss, and the side wall of the fixing sleeve is in threaded connection with the lower portion of the sleeve portion.
Specifically, the fixing sleeve is a circular groove body, so that the lower part of the sleeve part can be wrapped by the fixing sleeve, and the main shaft rod is prevented from falling off from the sleeve part through threaded connection of the fixing sleeve and the sleeve part, so that parts of the clamping device are prevented from being lost; the top of the main shaft rod can be positioned in the sleeve part through the fixing sleeve, and a worker can rotate the key hole in the top of the main shaft rod above the well cover through a key, so that the locking device can be unfolded and retracted.
In one embodiment, a support sleeve is arranged between the first connecting sleeve and the support sheet, the position of the first connecting sleeve on the sleeve part is adjusted through the support sleeve, and the distance between the first connecting sleeve and the second connecting sleeve is changed, so that the unfolding area of the first connecting rod is changed, and the locking device can adapt to well covers with different sizes; be provided with locking nut between first connecting sleeve and fixed sleeving, locking nut can ginger di connecting sleeve fix at the sleeve structure, when avoiding this locking means to install on the well lid, because the part is too big and unable fixed to increase the installation degree of difficulty.
Optionally, the second connecting sleeve includes a second sleeve and a plurality of second connecting plates, the structure of the second connecting sleeve is identical to that of the first connecting sleeve, and only the difference between the mounting positions is that the second sleeve is in threaded connection with the lower portion of the spindle rod, the plurality of second connecting plates are uniformly distributed on the periphery of the second sleeve, the second connecting plates are arranged along the vertical direction, and a second hinge hole is formed in the second connecting plate and used for being hinged to the other end of the second connecting rod.
Specifically, the second connecting sleeve reciprocates in vertical direction when the main shaft pole rotates, and the second connecting plate drives the head rod through the second connecting rod and takes place to rotate like this, realizes this locking device's expansion and shrink state, and the quantity of second connecting plate is the one-to-one with the quantity of head rod, drives the rotation of head rod through the telescopic removal of second like this, and transmission stable in structure can guarantee this locking device's steady operation.
Optionally, still include spacing pad, spacing pad passes through the bolt fastening in the bottom of main shaft pole, and spacing pad and the spacing cooperation of second connecting sleeve.
Specifically, set up spacing pad in the bottom of screw thread portion, avoid the second connecting sleeve when driving the expansion of head rod, take place the phenomenon that the second connecting sleeve drops from the main shaft pole, cause this locking device's damage.
Examples
As shown in fig. 1 to 9, the present invention provides a manhole cover locking device, including:
the sleeve structure 1 is arranged at the circle center of the well cover in a penetrating manner;
a boss 3 is arranged in the middle of the main shaft rod 2 along the circumferential direction, and the upper part of the main shaft rod 2 is arranged in the sleeve structure 1;
the first connecting sleeve 4 is sleeved outside the sleeve structure 1;
one end of the fixed sleeve 5 is connected with the sleeve structure 1, the other end of the fixed sleeve 5 is connected with the boss 3, and the axial projection of the fixed sleeve 5 is partially overlapped with the axial projection of the first connecting sleeve 4;
the second connecting sleeve 6 is movably arranged at the lower part of the main shaft rod 2 along the vertical direction;
a plurality of bracing piece structures, bracing piece structure includes head rod 7 and second connecting rod 8, the middle part of head rod 7 is articulated with the one end of second connecting rod 8, a plurality of bracing piece structures set up in the periphery of sleeve structure 1, the one end of head rod 7 is articulated with first connecting sleeve 4, the other end and the second connecting sleeve 6 of second connecting rod 8 are articulated, second connecting sleeve 6 can drive the other end of head rod 7 and the walling crib looks joint of well lid.
In this embodiment, first via hole has been seted up at the center of well lid, and the sleeve structure includes:
the lower surface of the supporting sheet 9 is attached to the upper surface of the well lid, and a second through hole is formed in the middle of the supporting sheet 9;
and a sleeve part 10, wherein the top of the sleeve part 10 is communicated with the second through hole, the outer wall of the sleeve part 10 is attached to the inner wall of the first through hole, and the lower part of the sleeve part 10 is provided with an external thread.
In the present embodiment, a key hole 11 is provided at the tip of the spindle shaft 2, the upper outer wall of the spindle shaft 2 is attached to the inner wall of the sleeve portion 10, and a male screw is provided at the lower portion of the spindle shaft 2.
In the present embodiment, the key hole 11 is an inside-triangle lock cylinder.
In the present embodiment, the bottom of the sleeve portion 10 is provided with a groove 16 along the circumferential direction of the inner wall, and the groove 16 is matched with the boss 3.
In this embodiment, the first connecting sleeve 4 includes a first sleeve 12 and a plurality of first connecting plates 13, the first sleeve 12 is laminated with the sleeve structure 1, the plurality of first connecting plates 13 are uniformly distributed on the periphery of the first sleeve 12, the first connecting plates 13 are arranged along the vertical direction, and first hinge holes are formed in the first connecting plates 13 and used for being hinged to one end of the first connecting rod 7.
In this embodiment, the other end of the first connecting rod 7 is provided with a bent portion 14, and the bent portion 14 matches with the outer peripheral profile of the manhole ring of the manhole cover.
In this embodiment, the fixing sleeve 5 is a circular groove, a main shaft rod through hole 15 is formed in the bottom wall of the fixing sleeve 5, the inner wall of the main shaft rod through hole 15 is matched with the outer wall of the lower portion of the main shaft rod, the bottom wall of the fixing sleeve 5 is in clamping fit with the boss 3, and the side wall of the fixing sleeve 5 is in threaded connection with the lower portion of the sleeve portion 10.
In this embodiment, second connecting sleeve 6 includes second sleeve and a plurality of second connecting plate, the lower part threaded connection of second sleeve and main shaft pole 2, and a plurality of second connecting plates are at the telescopic periphery evenly distributed of second, and the second connecting plate sets up along vertical direction, has seted up the second hinge hole on the second connecting plate for it is articulated with the other end of second connecting rod 8.
In this embodiment, still include spacing pad 17, spacing pad 17 passes through the bolt fastening in the bottom of main shaft pole 2, and spacing pad 17 is spacing with second connecting sleeve 6 and is cooperated.
To sum up, this locking device installs the central point at the well lid and puts, through key clockwise rotation key hole 11, it moves vertical direction upward movement to drive second connecting sleeve 6, thereby the both ends that drive first connecting plate 13 draw close each other, the well lid is in the unblock state with the well head, the workman can open the well lid and normally maintain, rethread key anticlockwise rotation key hole 11, it moves vertical direction downstream to drive second connecting sleeve 6, thereby the both ends that drive first connecting plate 13 expand each other, the well lid is in locking state with the well head, can effectively prevent that the well lid is stolen, phenomenons such as well lid displacement and well lid top support.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A well lid locking device, comprising:
the sleeve structure is arranged at the position of the circle center of the well cover in a penetrating manner;
a boss is arranged in the middle of the main shaft rod along the circumferential direction, and the upper part of the main shaft rod is arranged inside the sleeve structure;
the first connecting sleeve is sleeved outside the sleeve structure;
one end of the fixed sleeve is connected with the sleeve structure, the other end of the fixed sleeve is connected with the boss, and the axial projection of the fixed sleeve is partially overlapped with the axial projection of the first connecting sleeve;
the second connecting sleeve is movably arranged at the lower part of the main shaft rod along the vertical direction;
a plurality of bracing piece structures, bracing piece structure includes head rod and second connecting rod, the middle part of head rod with the one end of second connecting rod is articulated, and is a plurality of the bracing piece structure set up in sleeve structure's periphery, the one end of head rod with first connecting sleeve is articulated, the other end of second connecting rod with second connecting sleeve is articulated, second connecting sleeve can drive the other end of head rod with the walling crib looks joint of well lid.
2. The well lid locking device of claim 1, wherein a first via hole is opened at the center of the well lid, and the sleeve structure comprises:
the lower surface of the supporting sheet is attached to the upper surface of the well lid, and a second through hole is formed in the middle of the supporting sheet;
and the top of the sleeve part is communicated with the second through hole, the outer wall of the sleeve part is attached to the inner wall of the first through hole, and the lower part of the sleeve part is provided with an external thread.
3. The manhole cover locking device of claim 2, wherein a key hole is formed at a top end of the main shaft, an upper outer wall of the main shaft is fitted to an inner wall of the sleeve portion, and a lower portion of the main shaft is externally threaded.
4. The well lid locking device of claim 3, wherein the key hole is an internal cam lock.
5. The manhole cover locking device of claim 2, wherein the bottom of the sleeve portion is formed with a groove along a circumferential direction of the inner wall, and the groove is engaged with the boss.
6. The well lid locking device of claim 1, wherein the first connecting sleeve comprises a first sleeve and a plurality of first connecting plates, the first sleeve is attached to the sleeve structure, the first connecting plates are uniformly distributed on the periphery of the first sleeve, the first connecting plates are arranged along the vertical direction, and first hinge holes are formed in the first connecting plates and used for being hinged to one ends of the first connecting plates.
7. The well lid locking device of claim 1, wherein the other end of the first connecting rod is provided with a bent portion which matches with the outer peripheral profile of the well ring of the well lid.
8. The well lid locking device according to claim 2, wherein the fixing sleeve is a circular groove, a main shaft rod through hole is formed in the bottom wall of the fixing sleeve, the inner wall of the main shaft rod through hole is matched with the outer wall of the lower portion of the main shaft rod, the bottom wall of the fixing sleeve is in clamping fit with the boss, and the side wall of the fixing sleeve is in threaded connection with the lower portion of the sleeve portion.
9. The well lid locking device of claim 1, wherein the second connecting sleeve comprises a second sleeve and a plurality of second connecting plates, the second sleeve is in threaded connection with the lower portion of the spindle rod, the second connecting plates are evenly distributed on the periphery of the second sleeve, the second connecting plates are arranged along the vertical direction, and second hinge holes are formed in the second connecting plates and used for being hinged to the other ends of the second connecting plates.
10. The well lid locking device of claim 1, further comprising a limiting pad fixed to the bottom end of the spindle rod by a bolt, wherein the limiting pad is in limiting fit with the second connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555954.5A CN114277846A (en) | 2021-12-17 | 2021-12-17 | Well lid locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111555954.5A CN114277846A (en) | 2021-12-17 | 2021-12-17 | Well lid locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114277846A true CN114277846A (en) | 2022-04-05 |
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ID=80872943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111555954.5A Pending CN114277846A (en) | 2021-12-17 | 2021-12-17 | Well lid locking device |
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| CN (1) | CN114277846A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405250A (en) * | 2022-09-23 | 2022-11-29 | 中航勘察设计研究院有限公司 | Drilling plugging device |
-
2021
- 2021-12-17 CN CN202111555954.5A patent/CN114277846A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115405250A (en) * | 2022-09-23 | 2022-11-29 | 中航勘察设计研究院有限公司 | Drilling plugging device |
| CN115405250B (en) * | 2022-09-23 | 2023-12-15 | 中航勘察设计研究院有限公司 | Drilling plugging device |
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