CN214994104U - Anti-theft sewer well cover - Google Patents

Abstract

The application relates to the field of municipal tools, in particular to an anti-theft sewer well lid, which comprises a well lid body, wherein the well lid body comprises a gasket and a lid body, the gasket comprises an outer ring and an inner ring connected in the outer ring, the lid body is positioned in the outer ring, the bottom surface of the lid body is abutted against the top surface of the inner ring, a first anti-theft assembly is arranged on the lid body, the first anti-theft assembly comprises a telescopic rod, and the telescopic rod is arranged on the peripheral side wall of the lid body; the edge of the inner side edge of the top surface of the outer ring is provided with an installation groove, and the telescopic rod is positioned in the installation groove; the mounting groove is far away from and has seted up the spacing groove on the inside wall of lid, the telescopic link can be extended to wearing to locate the spacing inslot. This application has and makes the lid be difficult for taking out in the packing ring, makes the lid be difficult for the effect of artificial malice robber.

Description

Anti-theft sewer well cover

Technical Field

The utility model relates to a field of municipal administration instrument especially relates to an theftproof sewer well lid.

Background

The sewer well cover is an essential article for city construction, and is visible everywhere on roads of modern cities. The existing well covers are mostly made of iron and are provided with drain holes, and rainwater is drained to a sewer through the drain holes, so that the influence on traffic on the ground is avoided.

In the related technology, the sewer well lid comprises a lid body and a gasket for mounting the lid body, wherein the gasket comprises an outer ring and an inner ring, the inner ring is positioned in the outer ring, and the outer side wall of the inner ring is fixedly connected with the bottom end of the inner side wall of the outer ring; the inner diameter of the outer ring is equal to the diameter of the cover body, and the inner diameter of the inner ring is smaller than the diameter of the cover body. When the well lid is installed, the washer is fixedly installed in the preformed hole on the road, then the cover body is placed into the outer ring from top to bottom, the bottom surface of the cover body is abutted to the top surface of the inner ring, and at the moment, the inner ring limits the cover body, so that the cover body is unlikely to fall into a sewer.

In view of the above-mentioned related art, the inventor thinks that when installing the lid, the lid only places on the inner ring, and the lid can be taken out by pulling the lid outwards from the opening of the gasket, which is easy to be stolen maliciously by people.

SUMMERY OF THE UTILITY MODEL

In order to make the lid be difficult for taking out in the packing ring, and then make the lid be difficult for being taken by artificial malice, this application provides an theftproof sewer well lid.

The application provides a pair of theftproof sewer well lid adopts following technical scheme:

an anti-theft sewer well lid comprises a well lid body, wherein the well lid body comprises a gasket and a lid body, the gasket comprises an outer ring and an inner ring connected in the outer ring, the lid body is positioned in the outer ring, the bottom surface of the lid body is abutted to the top surface of the inner ring, a first anti-theft assembly is arranged on the lid body, the first anti-theft assembly comprises a telescopic rod, and the telescopic rod is arranged on the peripheral side wall of the lid body; the edge of the inner side edge of the top surface of the outer ring is provided with an installation groove, and the telescopic rod is positioned in the installation groove; the mounting groove is far away from and has seted up the spacing groove on the inside wall of lid, the telescopic link can be extended to wearing to locate the spacing inslot.

Through adopting above-mentioned technical scheme, when installing the well lid, the staff can pass through the well lid reservation hole department of concrete fixed mounting on the road with the packing ring earlier. The telescopic rod is in a contraction state, the cover body is placed in the outer ring, and the telescopic rod is located in the mounting groove. At this moment, the limiting groove is penetrated and arranged in the one end of the telescopic rod extending to the position far away from the cover body, and the limiting groove limits the telescopic rod, so that the cover body is limited, the cover body is not easy to take out of the gasket, and the cover body is not easy to be stolen maliciously by people.

Optionally, the telescopic rod includes an outer tube and an inner block, the outer tube is fixedly connected to the peripheral side wall of the cover body, and the outer tube is located in the mounting groove; the inner block is arranged in the outer pipe in a sliding mode, and one end, far away from the cover body, of the inner block can slide to penetrate through the limiting groove.

Through adopting above-mentioned technical scheme, the inner block slides and sets up in the outer tube to realize the flexible function of telescopic link, inner block and outer tube simple structure, the installation of being convenient for. The one end slidable to the spacing inslot that the lid was kept away from to the inner block to carry out spacingly through the inner block to the lid, make the lid be difficult for taking out from the packing ring.

Optionally, the first anti-theft component further comprises a spring, the spring is arranged in the outer pipe, one end of the spring is fixedly connected with the peripheral side wall of the cover body, and the other end of the spring is fixedly connected with the inner block.

Through adopting above-mentioned technical scheme, during the installation lid, available hand is pressed the inner mass, makes the spring be in compression state, places the lid in the packing ring in-process, makes the inner wall that the lid was kept away from along the mounting groove to slide to spacing groove department to the inner mass, and the spring is bounced for resumeing to natural state this moment to the one end extension that makes the inner mass keep away from the lid is spacing to the lid. The spring is simple in structure and convenient to install, the inner block can be automatically driven to slide, and the automatic extending function of the telescopic rod is convenient to achieve.

Optionally, an accommodating groove is formed in the top surface of the outer ring, the accommodating groove is far away from the cover body compared with the mounting groove, and the accommodating groove is communicated with the limiting groove;

the cover body is also provided with a second anti-theft assembly, the second anti-theft assembly is positioned in the accommodating groove, the second anti-theft assembly comprises an upper limiting frame, a lower limiting frame and a limiting ring, the upper limiting frame is positioned above the lower limiting frame, the upper limiting frame is fixedly connected with the inner side wall, close to the cover body, of the accommodating groove, the lower limiting frame is fixedly connected with the inner block, and the opening directions of the upper limiting frame and the lower limiting frame are both vertically or obliquely arranged;

an installation rod is arranged in the upper limiting frame, the installation rod penetrates through a limiting ring, and the limiting ring is hung on the installation rod;

the installation pole is close to the external diameter that the distance between the lid inside wall with the holding tank is not more than the spacing ring, the installation pole is not less than the external diameter of spacing ring with the distance between the one end that the lid was kept away from to last spacing frame inner wall, down the spacing frame can slide to accomodating in the outer tube along with the inner block, down the spacing frame also can slide to the spacing ring along with the inner block and be located down the spacing frame.

Through adopting above-mentioned technical scheme, when installing the lid, press down the spacing frame with the hand, the spring compression, and then make the spacing frame of lower limit accomodate in the outer tube along with the slip of inner block. At this moment, the end of the outer pipe far away from the cover body is abutted to the inner wall of the mounting groove, the limiting frame is pressed down by hands, then the outer pipe is moved to the limiting groove, at the moment, the spring drives the inner block to slide, and therefore the limiting frame slides under the driving. Lower spacing frame passes the spacing groove and slides to the holding tank in, when spacing frame slides when as for the lateral wall butt of spacing ring down, spacing frame is with spacing ring jack-up that makes progress down, continues to slide afterwards, finally makes the spacing ring fall and lie in down in the spacing frame. Because installation pole and holding tank are close to the external diameter that the distance between the lid inside wall is not more than the spacing ring, consequently the spacing ring can restrict down the spacing frame and remove to the direction that is close to the lid, makes down the difficult spacing frame of following of spacing groove and shifts out to further prevent that the lid from being stolen for one's sake.

Optionally, a reset through groove is formed in the peripheral side wall of the cover body, the reset through groove is communicated with the outer pipe, an operation groove is formed in the top surface of the cover body, and the operation groove is communicated with the reset through groove;

the well lid body further comprises a reset assembly, the reset assembly comprises reset tweezers, a reset ring and a reset rope, the reset tweezers are detachably mounted in the containing groove, and the reset ring is located in the operation groove; the reset rope penetrates through the reset through groove, one end of the reset rope is fixedly connected with the inner block, and the other end of the reset rope is fixedly connected with the reset ring.

Through adopting above-mentioned technical scheme, when need be under construction and overhaul in the sewer, the staff can carry the spacing ring upwards to mention with the tweezers that reset from holding the inslot dismantlement, rethread pulling reset ring, and then pulling reset rope, make the spacing frame slide until the spacing ring is accomodate in the outer tube to the direction that is close to the lid under the stopper drives. At the moment, the cover body is taken out from the gasket, so that workers can enter a sewer to carry out construction and maintenance.

Optionally, a first cover is detachably mounted on the cover body, and the first cover is arranged at the opening of the operation slot; the detachable mounting has the second lid on the top surface of outer lane, the opening part of holding tank is located to the second lid.

Through adopting above-mentioned technical scheme, first lid and second lid can shelter from operation groove and holding tank respectively, and then are convenient for protect line and the theftproof subassembly of restoring to the throne.

Optionally, the first cover is in threaded connection with the inner side wall of the operation groove, and a reserved through hole is formed in the top surface of the first cover.

Through adopting above-mentioned technical scheme, when the staff need open first lid, the staff rotates first lid through penetrating the reservation through-hole with the finger, is convenient for open first lid.

Optionally, the operation slot penetrates through the cover body in the thickness direction.

Through adopting above-mentioned technical scheme, the rainwater enters into the operation inslot after, can pass in the operation groove enters into the sewer to prevent that the rainwater from piling up in the operation inslot, help improving the drainage effect of lid.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the telescopic rod can extend to penetrate through the limiting groove, and the limiting groove limits the telescopic rod, so that the cover body is limited, the cover body is not easy to take out of the gasket, and the cover body is convenient to prevent from being stolen maliciously by people;

2. the telescopic rod comprises an outer tube and an inner block arranged in the outer tube in a sliding manner, the spring can automatically drive one end, away from the cover body, of the inner block to extend into the limiting groove to limit the cover body, the spring is simple in structure and convenient to mount, the inner block can be driven to slide, and the automatic extending function of the telescopic rod is convenient to realize;

3. the setting of spacing ring can restrict down spacing frame to the direction removal of being close to the lid, makes spacing frame shift out in being difficult for following the spacing groove down to further prevent that the lid from being stolen by the artificial malice.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram for showing the internal structure of the well lid body in the embodiment of the application.

Fig. 3 is an enlarged view of a in fig. 2.

Fig. 4 is a schematic structural diagram for showing a second antitheft assembly in the embodiment of the present application.

Fig. 5 is an enlarged view of B in fig. 2.

Description of reference numerals: 1. a well lid body; 2. a gasket; 21. an outer ring; 211. mounting grooves; 212. a limiting groove; 213. accommodating grooves; 22. an inner ring; 3. a cover body; 31. a reset through groove; 32. an operation slot; 4. a first anti-theft component; 41. a telescopic rod; 411. an outer tube; 412. an inner block; 42. a spring; 5. a second anti-theft component; 51. an upper limit frame; 511. a first chamber; 512. a second chamber; 52. a lower limit frame; 53. a limiting ring; 6. mounting a rod; 7. a reset assembly; 71. resetting the forceps; 72. a reset ring; 73. a reset rope; 8. a first cover; 81. reserving a through hole; 9. a second cover.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses theftproof sewer well lid. Referring to fig. 1, the anti-theft sewer manhole cover comprises a manhole cover body 1, wherein the manhole cover body 1 comprises a gasket 2 and a cover body 3 installed in the gasket 2.

Referring to fig. 1 and 2, the gasket 2 includes an outer ring 21 and an inner ring 22 located inside the outer ring 21, the center lines of the inner ring 22 and the outer ring 21 are collinear, and the outer side wall of the inner ring 22 is fixedly connected with the bottom end of the inner side wall of the outer ring 21. The cover 3 is located in the outer ring 21, and the diameter of the cover 3 is equal to the inner diameter of the outer ring 21. The lid 3 has a diameter larger than the outer diameter of the inner ring 22, and the lid 3 is mounted in the gasket 2 with the bottom surface of the lid 3 abutting against the top surface of the inner ring 22. The top surface of lid 3 flushes with the top surface of outer lane 21 to improve well lid body 1's planarization, be convenient for pedestrian and vehicle are current.

Referring to fig. 2 and 3, the top surface of the outer ring 21 is provided with two mounting grooves 211 along the edge of the inner side of the top surface, in this embodiment, the two mounting grooves 211 are oppositely arranged along the radial direction of the cover 3. The mounting groove 211 is provided with a limiting groove 212 on the inner side wall far away from the cover body 3. The cover body 3 is provided with a first anti-theft component 4 and a second anti-theft component 5, and the first anti-theft component 4 and the second anti-theft component 5 are respectively and oppositely arranged in two groups. The first anti-theft component 4 comprises an extension rod 41 and a spring 42, and the extension rod 41 comprises an outer tube 411 and an inner block 412 slidably mounted inside the outer tube 411. The outer tube 411 is located in the mounting groove 211, one end of the outer tube 411 is fixedly connected with the peripheral side wall of the cover body 3, and the other end of the outer tube 411 is flush with the inner side wall of the mounting groove 211 far away from the cover body 3. The side wall of the inner block 412 abuts against the inner side wall of the outer tube 411, the spring 42 is mounted in the outer tube 411, one end of the spring 42 is fixedly connected to the side wall of the lid 3, and the other end of the spring 42 is fixedly connected to the side of the inner block 412 close to the lid 3.

When the cover is mounted, the worker presses the inner block 412 with a hand to compress the spring 42 and thus the telescopic rod 41. Then, the cover 3 is placed in the outer ring 21, and the inner block 412 is stopped to be pressed by hand, so that the inner block 412 slides to the position of the limiting groove 212 along the installation groove 211 away from the inner wall of the cover 3. At this time, the spring 42 is restored to the natural state to drive the inner block 412 to automatically slide, and one end of the inner block 412 far away from the cover body 3 can slide to penetrate through the limiting groove 212, that is, the telescopic rod 41 is extended to penetrate through the limiting groove 212. The inner block 412 is limited by the limiting groove 212, so that the cover 3 is limited, the cover 3 is not easy to take out from the gasket 2, and the cover 3 is not easy to be stolen maliciously by people.

Referring to fig. 3 and 4, two holding grooves 213 shaped like a Chinese character 'tu' are oppositely formed on the top surface of the outer ring 21, the holding grooves 213 are far away from the cover 3 than the mounting grooves 211, and the depth of the holding grooves 213 is equal to the depth of the mounting grooves 211. Each accommodating groove 213 corresponds to one of the limiting grooves 212, and the accommodating grooves 213 are communicated with the corresponding limiting grooves 212. The second anti-theft component 5 is located in the accommodating groove 213, the second anti-theft component 5 includes an upper limiting frame 51, a lower limiting frame 52 and a limiting ring 53, and the upper limiting frame 51 is fixedly connected with the accommodating groove 213 close to the inner side wall of the cover 3. The lower limit frame 52 is fixedly connected with the inner block 412 and can slide to the lower part of the upper limit frame 51 along with the inner block 412, the opening directions of the upper limit frame 51 and the lower limit frame 52 are both vertically or obliquely arranged, and the opening directions of the upper limit frame 51 and the lower limit frame 52 are both vertically arranged in the embodiment. The length directions of the upper limit frame 51 and the lower limit frame 52 are perpendicular to the inner side wall of the accommodating groove 213 close to the cover body 3.

Referring to fig. 3 and 4, the upper limiting frame 51 is provided with the mounting rod 6 therein, two ends of the mounting rod 6 are respectively fixedly connected with two longer sides of the upper limiting frame 51, and the limiting ring 53 is sleeved and hung on the mounting rod 6, i.e. the top end of the inner wall of the limiting ring 53 is abutted against the top end of the mounting rod 6. The mounting rod 6 divides the upper limiting frame 51 into a first chamber 511 and a second chamber 512, the first chamber 511 is far away from the inner block 412 than the second chamber 512, and the length of the first chamber 511 is larger than the outer diameter of the limiting ring 53. The lower limiting frame 52 can slide along with the inner block 412 to be completely accommodated in the outer tube 411, and the lower limiting frame 52 can also slide along with the inner block 412 to the limiting ring 53 to be located in the lower limiting frame 52.

The process of the stop collar 53 being located in the lower stop frame 52 is: the lower limiting frame 52 passes through the limiting groove 212 along with the inner block 412 and slides into the accommodating groove 213, when one end of the lower limiting frame 52, which is far away from the cover body 3, slides to abut against the outer side wall of the limiting ring 53, the lower limiting frame 52 jacks up the limiting ring 53, the limiting ring 53 passes through the first cavity 511, and at this time, most of the limiting ring 53 is located above the upper limiting frame 51. Then, the lower limit frame 52 continues to slide until one end of the lower limit frame 52, which is far away from the cover body 3, is separated from the outer side wall of the limit ring 53 and abutted against the outer side wall, and the limit ring 53 finally falls into the lower limit frame 52 under the action of gravity and is restored to the state of being hung on the mounting rod 6.

Referring to fig. 3 and 4, the length of the second cavity 512 is smaller than the outer diameter of the limiting ring 53, so when the lower limiting frame 52 is about to move toward the cover 3, the limiting ring 53 abuts against the inner sidewall of the receiving groove 213 near the cover 3, and further the lower limiting frame 52 is limited to move toward the cover 3, so that the lower limiting frame 52 is not easily removed from the limiting groove 212, and the cover 3 is further prevented from being stolen by human malicious intent.

Referring to fig. 3 and 5, a reset through groove 31 is formed on a circumferential side wall of the cover 3, and both ends of the reset through groove 31 are respectively communicated with the two outer tubes 411. An operation groove 32 penetrating along the thickness direction of the cover body 3 is formed in the center of the top surface of the cover body 3, and the operation groove 32 is communicated with the reset through groove 31. The well lid body 1 further comprises two sets of reset components 7 which are oppositely arranged, and the reset components 7 comprise reset tweezers 71, reset rings 72 and reset ropes 73. Fixedly connected with couple in holding tank 213, reset tweezers 71 are located holding tank 213 and hang and establish on the couple. The reset ring 72 is located in the operation slot 32, the reset rope 73 passes through the reset through slot 31, one end of the reset rope 73 passes through the spring 42 and is fixedly connected with the inner block 412, and the other end of the reset rope 73 is fixedly connected with the reset ring 72.

The staff accessible resets tweezers 71 and cliies spacing ring 53 and mentions upwards, makes spacing ring 53 be located the top of spacing frame 52 down, and rethread reset ring 72 pulling reset rope 73 makes the spacing frame 52 slide down of stopper drive and accomodate in outer tube 411 until spacing ring 53 down. Make lid 3 can take out from packing ring 2, and then make the staff can enter into and construct and overhaul in the sewer.

Referring to fig. 3 and 5, the first cover 8 covers the operation slot 32 on the cover body 3, the first cover 8 is in threaded connection with the inner side wall of the operation slot 32, and the first cover 8 can shield the operation slot 32, so as to protect the reset rope 73. Seted up on the top surface of first lid 8 and reserved through-hole 81, during staff's accessible penetrated the finger and reserved through-hole 81, be convenient for rotate first lid 8 and open first lid 8. The second lid 9 is installed through the bolt in holding tank 213 department on the outer lane 21, and the second lid 9 covers locates on the notch of holding tank 213, shelters from holding tank 213, and then protects the difficult quilt of second theftproof subassembly 5 and destroys.

The implementation principle of this application embodiment theftproof sewer well lid does: when installing well lid body 1, earlier pass through the well lid reservation hole department of concrete fixed mounting on the road with packing ring 2. Then, the stopper frame 52 is pressed by hand in a direction approaching the lid body 3, the spring 42 is compressed, and the inner block 412 and the lower stopper frame 52 are accommodated in the outer tube 411. Then, place lid 3 in packing ring 2, simultaneously, make outer tube 411 be located mounting groove 211, the one end that the lid 3 was kept away from to outer tube 411 and mounting groove 211 kept away from the inside wall butt of lid 3 this moment, stop pressing down spacing frame 52 with the hand, make outer tube 411 slide to spacing groove 212 department along the mounting groove 211 keeps away from the inner wall of lid 3. At this time, the spring 42 is restored to the natural state and drives the inner block 412 to automatically slide into the limiting groove 212, so as to limit the lid 3, and the lid 3 is not easily taken out of the gasket 2 and stolen.

Meanwhile, the lower limiting frame 52 passes through the limiting groove 212 along with the inner block 412 and slides into the accommodating groove 213, when one end of the lower limiting frame 52, which is far away from the cover body 3, slides to the outer side wall of the limiting ring 53 to abut against, the lower limiting frame 52 jacks up the limiting ring 53, the limiting ring 53 passes through the first cavity 511, and at this time, most of the limiting ring 53 is located above the upper limiting frame 51. Then, the lower limiting frame 52 continues to slide until the end of the lower limiting frame 52 far away from the cover body 3 is separated from the outer side wall of the limiting ring 53 and abutted against the end, and the limiting ring 53 finally falls into the lower limiting frame 52 under the action of gravity to further limit the cover body 3, so that the cover body 3 is further prevented from being stolen.

When the lid 3 need be taken out from packing ring 2 and overhauld, the staff opens second lid 9 through the instrument earlier, and unscrew first lid 8, carry spacing ring 53 through reset tweezers 71 and upwards mention, make spacing ring 53 be located the top of spacing frame 52 down, rethread reset ring 72 stimulates reset rope 73, make spacing frame 52 slide under the stopper drives and accomodate in outer tube 411 until spacing ring 53 down, and then make lid 3 take out from packing ring 2, make the staff can enter into and be under construction and overhaul in the sewer. If a thief wants to steal the lid 3, the above operation needs to be repeated by a tool, which is troublesome, so that the lid 3 is not easy to steal.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides an theftproof sewer well lid, includes well lid body (1), well lid body (1) includes packing ring (2) and lid (3), and packing ring (2) include outer lane (21) and connect inner circle (22) in outer lane (21), and lid (3) are located outer lane (21), the bottom surface of lid (3) and the top surface butt of inner circle (22), its characterized in that: a first anti-theft component (4) is arranged on the cover body (3), the first anti-theft component (4) comprises a telescopic rod (41), and the telescopic rod (41) is arranged on the peripheral side wall of the cover body (3); an installation groove (211) is formed in the outer ring (21) along the edge of the inner side edge of the top surface of the outer ring, and the telescopic rod (41) is located in the installation groove (211); spacing groove (212) have been seted up on mounting groove (211) keep away from the inside wall of lid (3), telescopic link (41) can be extended to wear to locate in spacing groove (212).

2. The anti-theft sewer manhole cover of claim 1, wherein: the telescopic rod (41) comprises an outer tube (411) and an inner block (412), the outer tube (411) is fixedly connected with the peripheral side wall of the cover body (3), and the outer tube (411) is positioned in the mounting groove (211); the inner block (412) is arranged in the outer pipe (411) in a sliding mode, and one end, far away from the cover body (3), of the inner block (412) can slide to penetrate through the limiting groove (212).

3. The anti-theft sewer manhole cover of claim 2, wherein: first theftproof subassembly (4) still include spring (42), spring (42) set up in outer tube (411), the week lateral wall fixed connection of one end and lid (3) of spring (42), the other end and interior piece (412) fixed connection of spring (42).

4. The anti-theft sewer manhole cover of claim 2, wherein: the top surface of the outer ring (21) is provided with an accommodating groove (213), the accommodating groove (213) is far away from the cover body (3) compared with the mounting groove (211), and the accommodating groove (213) is communicated with the limiting groove (212);

the anti-theft cover is characterized in that a second anti-theft component (5) is further arranged on the cover body (3), the second anti-theft component (5) is located in the accommodating groove (213), the second anti-theft component (5) comprises an upper limiting frame (51), a lower limiting frame (52) and a limiting ring (53), the upper limiting frame (51) is located above the lower limiting frame (52), the upper limiting frame (51) is fixedly connected with the inner side wall, close to the cover body (3), of the accommodating groove (213), the lower limiting frame (52) is fixedly connected with the inner block (412), and the opening directions of the upper limiting frame (51) and the lower limiting frame (52) are both vertically or obliquely arranged;

an installation rod (6) is arranged in the upper limiting frame (51), the installation rod (6) penetrates through a limiting ring (53), and the limiting ring (53) is hung on the installation rod (6);

the installation pole (6) and holding tank (213) are close to the external diameter that the distance between lid (3) inside wall is not more than spacing ring (53), the installation pole (6) with go up spacing frame (51) inner wall and keep away from the external diameter that the distance between the one end of lid (3) is not less than spacing ring (53), spacing frame (52) can slide to spacing ring (53) along with interior piece (412) down and be located spacing frame (52).

5. The anti-theft sewer manhole cover of claim 4, wherein: a reset through groove (31) is formed in the peripheral side wall of the cover body (3), the reset through groove (31) is communicated with the outer pipe (411), an operation groove (32) is formed in the top surface of the cover body (3), and the operation groove (32) is communicated with the reset through groove (31);

the well lid body (1) further comprises a reset assembly (7), the reset assembly (7) comprises reset tweezers (71), a reset ring (72) and a reset rope (73), the reset tweezers (71) are detachably mounted in the accommodating groove (213), and the reset ring (72) is located in the operation groove (32); the reset rope (73) penetrates through the reset through groove (31), one end of the reset rope (73) is fixedly connected with the inner block (412), and the other end of the reset rope (73) is fixedly connected with the reset ring (72).

6. The anti-theft sewer manhole cover of claim 5, wherein: a first cover (8) is detachably mounted on the cover body (3), and the first cover (8) is arranged at an opening of the operation groove (32) in a covering manner; the top surface of outer lane (21) is gone up demountable installation and is had second lid (9), the opening part of holding tank (213) is located in second lid (9) lid.

7. The anti-theft sewer manhole cover of claim 6, wherein: the first cover (8) is in threaded connection with the inner side wall of the operation groove (32), and a reserved through hole (81) is formed in the top surface of the first cover (8).

8. The anti-theft sewer manhole cover of claim 7, wherein: the operation groove (32) penetrates through the cover body (3) in the thickness direction.

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