CN219710396U - Locking device for electric manhole cover - Google Patents

Abstract

The utility model relates to the technical field of well cover theft prevention, in particular to an electric well cover locking device, which comprises a chuck, wherein a through hole is formed in the middle of the chuck, a first internal thread is formed in the inner wall of the through hole, a supporting piece is arranged in the through hole, a first external thread is formed in the outer wall of the supporting piece, the supporting piece is detachably and fixedly connected with the chuck thread, a connecting hole is formed in the upper surface of the supporting piece, a second internal thread is formed in the connecting hole, a clamping groove locking piece is arranged in the second internal thread, a second external thread is formed in the outer wall of the lower portion of the clamping groove locking piece, the clamping groove locking piece is detachably and fixedly connected with the supporting piece, and a strong magnetic locking piece is arranged between the clamping groove locking piece and the supporting piece. The utility model can close the opening hole of the well cover, prevent rainwater from entering the well, and simultaneously can ensure that the well cover has no stress point, thereby achieving the effect of closing the well cover, avoiding the well cover from being easily opened, and solving the problems of theft and damage of the well cover.

Description

Locking device for electric manhole cover

Technical Field

The utility model relates to the technical field of well cover theft prevention, in particular to a locking device for an electric well cover.

Background

The airport area has important underground pipelines and tunnels, such as underground gas pipelines, tap water pipelines, electric power pipelines, communication pipelines and the like, every other section of the pipelines needs to be provided with an inspection well leading to an outlet on the ground, and each inspection well is provided with a cover to prevent people or other objects from falling into the well to influence the production operation and avoid injury to people. The well cover is usually made of reinforced cement soil, metal and reinforced plastic. Because most important well covers are not provided with locks, most well covers with locks are universal keys, and the lock control is blocked by adopting general locks.

Disclosure of Invention

The utility model aims to provide a locking device for a power manhole cover, which aims to solve the problems in the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides a power well lid locking device, includes the chuck that is used for the card to establish in the downthehole opening of well lid, the middle part of chuck is equipped with runs through the through-hole about the chuck, be equipped with first internal thread on the inner wall of through-hole, be equipped with the receiver in the through-hole, be equipped with first external screw thread on the outer wall of receiver, the receiver passes through first external screw thread and first internal screw thread with chuck screw thread can dismantle fixed connection, the upper surface of receiver is equipped with the connecting hole, be equipped with the second internal screw thread in the connecting hole, be equipped with the draw-in groove latch in the second internal screw thread, be equipped with the second external screw thread on the lower part outer wall of draw-in groove latch, the draw-in groove latch passes through the second external screw thread and the second internal screw thread with the receiver can dismantle fixed connection, the draw-in groove latch with still be equipped with between the receiver and be used for preventing the draw-in groove latch with the receiver takes place relative pivoted strong magnetic latch.

The beneficial effects of the utility model are as follows: the utility model can close the opening hole of the well cover, prevent rainwater from entering the well, and simultaneously can ensure that the well cover has no stress point, thereby achieving the effect of closing the well cover, avoiding the well cover from being easily opened, and solving the problems of theft and damage of the well cover.

On the basis of the technical scheme, the utility model can be improved as follows.

Further, the strong magnetic locking piece is including setting up the spread groove at receiver top, be equipped with outside convex edgewise on the upper portion lateral wall of draw-in groove locking piece, the bottom of edgewise is equipped with the mounting groove, be equipped with in the mounting groove and be in the metal locking piece of reciprocates in the mounting groove, the bottom of metal locking piece stretches out downwards the mounting groove inserts in the spread groove, just the metal locking piece can be under the effect of magnetic force the upward movement in the mounting groove.

The beneficial effects of adopting the further scheme are as follows: when the clamping groove locking piece is in threaded connection with the bearing piece, the bottom of the metal locking piece falls into the connecting groove under the action of gravity, and under the action of no magnetic force at the top of the clamping groove locking piece, the clamping groove locking piece cannot be directly unscrewed due to the fact that the metal locking piece is inserted into the connecting groove, so that locking of the clamping groove locking piece is achieved; under the effect of magnetic force on the top of the clamping groove locking piece, the metal locking piece is magnetically attracted to the top of the mounting groove and is separated from the connecting groove, and the clamping groove locking piece can be unscrewed.

Further, the metal locking piece is a metal clamping ball, and the inner diameter of the bottom opening of the mounting groove is smaller than the diameter of the metal clamping ball.

The beneficial effects of adopting the further scheme are as follows: the metal locking piece adopts the metal card ball, and the draw-in groove latch piece is rotatory in the connecting hole of going into the receiver in-process, and the lower surface of metal card ball is spherical, avoids causing the damage to the upper surface of receiver.

Further, an annular groove matched with the opening hole of the well lid is formed in the peripheral wall of the chuck, and the wall of the opening hole is inserted into the annular groove.

The beneficial effects of adopting the further scheme are as follows: the peripheral wall of the chuck adopts an annular groove structure, so that the chuck is convenient to be clamped with the wall of the opening hole.

Further, still include the lock plunger, the connecting hole runs through the bolster, the upper portion of lock plunger is established in the lower part of connecting hole, just the lock plunger with second internal thread threaded connection, the bottom fixedly connected with anticreep connecting piece of lock plunger, the anticreep connecting piece is established the below of chuck, at least one end of anticreep connecting piece is to the lateral wall extension protrusion of lock plunger the outer peripheral wall of chuck.

The beneficial effects of adopting the further scheme are as follows: the setting of the lock plunger makes things convenient for the anticreep connecting piece to dismantle the below that sets up at the chuck, and the setting of anticreep connecting piece can avoid the chuck to break away from the opening hole from the top of opening the hole.

Further, the top of draw-in groove latch fitting is equipped with and is used for being convenient for rotate the hexagonal lockhole of draw-in groove latch fitting.

The beneficial effects of adopting the further scheme are as follows: the hexagonal lockhole is arranged to facilitate the opening of the clamping groove locking piece by a tool.

Further, the novel opening device further comprises an opening rod, one end of the opening rod is provided with a handle, and the other end of the opening rod is connected with a threaded connector which is in threaded connection with the second internal thread.

The beneficial effects of adopting the further scheme are as follows: after the clamping groove locking piece is detached, the threaded connector is screwed into the connecting hole through the opening rod, and then the handle is pulled upwards, so that the well lid can be opened.

Further, the bottom fixedly connected with link chain of draw-in groove latch fitting, the link chain with the inner wall connection of connecting hole.

The beneficial effects of adopting the further scheme are as follows: the connecting hole is internally provided with the hook, after the clamping groove locking piece is taken out from the connecting hole, the connecting chain is connected with the hook, and then the connecting chain is pulled, so that the opening of the well lid can be realized.

Drawings

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

FIG. 2 is a schematic view of the structure of the opening lever according to the present utility model;

in the drawings, the list of components represented by the various numbers is as follows:

1. a chuck; 2. a through hole; 3. a receiving member; 4. a connection hole; 5. a clamping groove locking piece; 6. a connecting groove; 7. edge edges; 8. a mounting groove; 9. a metal clamping ball; 10. an annular groove; 11. a lock bolt; 12. an anti-drop connector; 13. a hexagonal lock hole; 14. an opening lever; 15. a handle; 16. and (5) a threaded connector.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1, the embodiment of the utility model comprises a chuck 1 for being clamped in an opening hole of a well lid, specifically, an annular groove 10 matched with the opening hole of the well lid is arranged on the peripheral wall of the chuck 1, the distance between two inner walls of the annular groove 10 is the same as the height of the wall of the opening hole, the wall of the opening hole is inserted in the annular groove 10, a through hole 2 penetrating through the chuck 1 up and down is arranged in the middle of the chuck 1, a first internal thread is arranged on the inner wall of the through hole 2, a bearing piece 3 is arranged in the through hole 2, a first external thread is arranged on the outer wall of the bearing piece 3, and the bearing piece 3 is detachably and fixedly connected with the threads of the chuck 1 through the first external thread and the first internal thread;

the upper surface of holding piece 3 is equipped with connecting hole 4, be equipped with the second internal thread in the connecting hole 4, be equipped with draw-in groove latch 5 in the second internal thread, the top of draw-in groove latch 5 is equipped with and is used for being convenient for rotate draw-in groove latch 5's hexagonal lockhole 13, the setting of hexagonal lockhole 13 conveniently adopts the instrument to open draw-in groove latch 5, be equipped with the second external screw thread on the lower part outer wall of draw-in groove latch 5, draw-in groove latch 5 passes through the second external screw thread and the second internal screw thread with the detachable fixed connection of holding piece 3, draw-in groove latch 5 with still be equipped with between the holding piece 3 and be used for preventing draw-in groove latch 5 with hold the strong magnetic latch that the relative rotation takes place for holding piece 3.

In the embodiment of the utility model, the strong magnetic locking piece comprises a connecting groove 6 arranged at the top of the bearing piece 3, an outward protruding edge 7 is arranged on the side wall of the upper part of the clamping groove locking piece 5, a mounting groove 8 is arranged at the bottom of the edge 7, a metal locking piece capable of moving up and down in the mounting groove 8 is arranged in the mounting groove 8, the bottom end of the metal locking piece extends downwards out of the mounting groove 8 and is inserted into the connecting groove 6, the metal locking piece can move upwards in the mounting groove 8 under the action of magnetic force, when the clamping groove locking piece 5 is connected onto the bearing piece 3 in a threaded mode, the bottom of the metal locking piece falls into the connecting groove 6 under the action of gravity, and under the action of no magnetic force at the top of the clamping groove locking piece 5, the clamping groove locking piece 5 cannot be directly unscrewed due to the fact that the metal locking piece is inserted into the connecting groove 6, and locking of the clamping groove locking piece 5 is achieved; under the action of magnetic force on the top of the clamping groove locking piece 5, the metal locking piece is magnetically attracted to the top of the mounting groove 8 and is separated from the connecting groove 6, and the clamping groove locking piece 5 can be unscrewed.

Preferably, the metal locking piece is a metal clamping ball 9, the inner diameter of the bottom opening of the mounting groove 8 is smaller than the diameter of the metal clamping ball 9, the metal locking piece adopts the metal clamping ball 9, and the lower surface of the metal clamping ball 9 is spherical in the process of rotating into the connecting hole 4 of the receiving piece 3 by the clamping groove locking piece 5, so that the upper surface of the receiving piece 3 is prevented from being damaged. In addition, in the embodiment of the present utility model, the metal locking piece may be a metal post, and the metal post is slidably disposed in the mounting groove 8 through an anti-falling structure, specifically, the anti-falling structure may be a bump disposed on a top side of the metal post, then a bump structure for preventing the protrusion from falling off is disposed on a bottom opening of the mounting groove 8, and the bottom end of the metal post extends out of the mounting groove 8 under the action of gravity, preferably, the bottom end of the metal post may be a spherical structure to prevent damage to the top of the receiving member 3.

In the embodiment of the utility model, the chuck further comprises a lock bolt 11, the connecting hole 4 penetrates through the bearing piece 3, the upper portion of the lock bolt 11 is arranged in the lower portion of the connecting hole 4, the lock bolt 11 is in threaded connection with the second internal thread, the bottom end of the lock bolt 11 is fixedly connected with a release-preventing connecting piece 12, the release-preventing connecting piece 12 is arranged below the chuck 1, at least one end of the release-preventing connecting piece 12 extends to protrude out of the peripheral wall of the chuck 1 towards the side wall of the lock bolt 11, the lock bolt 11 is conveniently arranged below the chuck 1, the release-preventing connecting piece 12 can prevent the chuck 1 from being separated from the opening hole from the upper portion of the opening hole, and in the embodiment, the release-preventing connecting piece 12 is a release-preventing connecting rod, and one end or the middle of the release-preventing connecting rod is fixedly connected with the bottom end of the lock bolt 11.

As shown in fig. 2, the opening rod 14 is preferably further included, one end of the opening rod 14 is provided with a handle 15, the handle 15 is in a frame structure, the other end of the opening rod is connected with a threaded connector 16 which is in threaded connection with the second internal thread, and the bottom end of the threaded connector 16 is pivoted or ball-hinged with the bottom end of the opening rod 14.

In another embodiment of the present utility model, the bottom end of the slot lock 5 is fixedly connected with a connecting chain, the connecting chain is connected with the inner wall of the connecting hole 4, a hook or a hanging rod is disposed in the connecting hole 4, the hook or the hanging rod is disposed in the space between the slot lock 5 and the lock plunger 11, the hook or the hanging rod is fixedly connected with the inner wall of the connecting hole 4, after the slot lock 5 is taken out from the connecting hole 4, the connecting chain is connected with the hook or the hanging rod, and then the connecting chain is pulled, so that the opening of the manhole cover can be realized.

Working principle: the chuck 1 is clamped in an opening hole of a well cover, so that the hole wall of the opening hole is clamped in the annular groove 10, the adapting piece 3 is screwed into the through hole 2 of the chuck 1, the first external thread is in threaded connection with the first internal thread, then the clamping groove locking piece 5 is screwed into the connecting hole 4, the second external thread is in threaded connection with the second internal thread, when the clamping groove locking piece is screwed to the lower surface of the edge 7 to be abutted against the upper surface of the adapting piece 3, the mounting groove 8 is positioned above the connecting groove 6, at the moment, the metal clamping ball 9 positioned in the mounting groove 8 falls into the connecting groove 6 under the action of gravity, locking is realized, the clamping groove locking piece 5 and the adapting piece 3 are prevented from being relatively moved, and the clamping groove locking piece 5 and the adapting piece 3 are prevented from relatively rotating, so that the clamping groove locking piece 5 is prevented from being unscrewed; screwing the lock plunger 11 into the lower part of the connecting hole 4, so that the lock plunger 11 is in threaded connection with the inner wall of the connecting hole 4, and the anti-falling connecting piece 12 is positioned below the well cover; when the well lid needs to be opened, the strong magnet is adopted to place the metal clamping ball 9 above the metal clamping ball 9 to magnetically attract the metal clamping ball 9 to the top of the mounting groove 8, meanwhile, the hexagonal screwdriver is inserted into the hexagonal lock hole 13, then the clamping groove locking piece 5 is screwed, the clamping groove locking piece 5 is taken out from the through hole 2, the threaded connector 16 is screwed into the connecting hole 4, and then the handle 15 is pulled upwards, so that the well lid can be opened.

The utility model can close the opening hole of the well cover, prevent rainwater from entering the well, and simultaneously can ensure that the well cover has no stress point, thereby achieving the effect of closing the well cover, avoiding the well cover from being easily opened, and solving the problems of theft and damage of the well cover.

In the description of the present utility model, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the system or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.

Claims (8)

1. The utility model provides a power well lid locking device, its characterized in that, including being used for the card to establish in the downthehole chuck (1) of opening of well lid, the middle part of chuck (1) is equipped with and runs through-hole (2) about chuck (1), be equipped with first internal thread on the inner wall of through-hole (2), be equipped with in through-hole (2) and accept piece (3), be equipped with first external screw thread on the outer wall of accepting piece (3), it passes through first external screw thread and first internal screw thread with chuck (1) screw thread detachable fixed connection, the upper surface of accepting piece (3) is equipped with connecting hole (4), be equipped with the second internal screw thread in connecting hole (4), be equipped with draw-in groove latch (5) in the second internal screw thread, be equipped with the second external screw thread on the lower part outer wall of draw-in groove latch (5), draw-in groove latch (5) pass through the second external screw thread with be equipped with on the outer wall of accepting piece (3) can dismantle fixed connection, draw-in groove (3) with accepting piece (3) screw thread relative strong rotation preventing that take place between fastener (3) and the draw-in latch (3).

2. The power manhole cover locking device according to claim 1, wherein the strong magnetic locking piece comprises a connecting groove (6) arranged at the top of the bearing piece (3), an outward protruding edge (7) is arranged on the side wall of the upper portion of the clamping groove locking piece (5), a mounting groove (8) is arranged at the bottom of the edge (7), a metal locking piece capable of moving up and down in the mounting groove (8) is arranged in the mounting groove (8), the bottom end of the metal locking piece extends downwards to extend out of the mounting groove (8) to be inserted into the connecting groove (6), and the metal locking piece can move upwards in the mounting groove (8) under the action of magnetic force.

3. The power manhole cover locking device according to claim 2, wherein the metal locking piece is a metal clamping ball (9), and the inner diameter of the bottom opening of the mounting groove (8) is smaller than the diameter of the metal clamping ball (9).

4. A power manhole cover locking device according to any one of claims 1 to 3, characterized in that the peripheral wall of the chuck (1) is provided with an annular groove (10) matching the opening hole of the manhole cover, the wall of the opening hole being inserted in the annular groove (10).

5. The power manhole cover locking device according to claim 4, further comprising a lock bolt (11), wherein the connecting hole (4) penetrates through the bearing piece (3), the upper portion of the lock bolt (11) is arranged in the lower portion of the connecting hole (4), the lock bolt (11) is in threaded connection with the second internal thread, an anti-falling connecting piece (12) is fixedly connected with the bottom end of the lock bolt (11), the anti-falling connecting piece (12) is arranged below the chuck (1), and at least one end of the anti-falling connecting piece (12) extends towards the side wall of the lock bolt (11) to protrude out of the peripheral wall of the chuck (1).

6. A manhole cover locking device according to any one of claims 1 to 3, wherein the top of the slot lock (5) is provided with a hexagonal locking hole (13) for facilitating rotation of the slot lock (5).

7. A manhole cover locking device according to any one of claims 1 to 3, further comprising an opening lever (14), one end of the opening lever (14) being provided with a handle (15) and the other end being connected with a threaded connection (16) for threaded connection with the second internal thread.

8. A manhole cover locking device according to any one of claims 1 to 3, wherein the bottom end of the clamping groove locking member (5) is fixedly connected with a connecting chain, and the connecting chain is connected with the inner wall of the connecting hole (4).