CN216041328U

CN216041328U - Anti-theft well cover

Info

Publication number: CN216041328U
Application number: CN202121193626.0U
Authority: CN
Inventors: 张健; 丁鼎; 徐志高; 金翌梅
Original assignee: Changshu Shinco Wei Composite Material Co ltd
Current assignee: Changshu Shinco Wei Composite Material Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-03-15
Anticipated expiration: 2031-05-31

Abstract

The utility model relates to the technical field of municipal well lids, in particular to an anti-theft well lid, which comprises a well lid seat and a well lid body covering the top of the well lid seat, and further comprises a first notch arranged on the inner side of the well lid seat and a second notch arranged at the bottom of the well lid body, wherein an electromagnet assembly is arranged in the first notch, the electromagnet assembly comprises an iron core, the iron core is connected to the well lid seat, a coil is wound on the outer wall of the iron core, a movable adsorption piece corresponding to the electromagnet assembly is arranged in the second notch, the adsorption piece comprises a steel sleeve, and a through hole for accommodating the steel sleeve is formed in the well lid body. The well cover is locked and unlocked by matching the electromagnet assembly and the adsorption piece, so that the anti-theft performance is good, and the well cover with the structure can be installed on a road with large water discharge because the electromagnet assembly and the adsorption piece are both of structures which are not easy to damp and damage, so that the well cover with the structure has wide applicability.

Description

Anti-theft well cover

Technical Field

The utility model relates to the technical field of municipal manhole covers, in particular to an anti-theft manhole cover.

Background

The well lid for cover road or the deep well of family, prevent that people or object from falling, can divide into metal well lid, high strength fiber cement concrete well lid, resin well lid etc. according to the material, generally adopt circularly, can be used to greenbelt, pavement, motorway, pier, lane etc..

The patent that prior publication number is CN210562314U provides an theftproof well lid device, designs automatically controlled lifting structure, through the synchronous working control of each miniature automatically controlled telescopic link of design, realizes by the inside lifting to the well lid body to combine the recess of well lid body side, realize opening to the well lid body, effectively improve the theftproof effect of well lid. However, this type of theftproof well lid is equipped with many electromechanical structure, leads to this well lid be not suitable for in the well lid mounted position that low-lying department and displacement are big, has reduced the application scope of well lid.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides the anti-theft well lid, which adopts a structure which is not easy to be affected with damp to carry out anti-theft locking and unlocking on the well lid, and solves the problem that the original installation position of the well lid is limited by the environment.

(II) technical scheme

In order to realize the purpose of carrying out anti-theft locking and unlocking on the well lid by adopting the structure which is not easy to be affected with damp, the utility model provides the following technical scheme: an anti-theft well lid comprises a well lid seat and a well lid body covering the top of the well lid seat, and also comprises a first notch arranged at the inner side of the well lid seat and a second notch arranged at the bottom of the well lid body, an electromagnet assembly is arranged in the first notch and comprises an iron core, the iron core is connected to the well cover seat, the outer wall of the iron core is wound with a coil, a movable adsorption piece corresponding to the electromagnet assembly is arranged in the second notch, the adsorption piece comprises a steel sleeve, a through hole for accommodating the steel sleeve is arranged on the well lid body, the steel sleeve is inserted into the through hole, a permanent magnet is fixedly inserted into the steel sleeve in an inserting mode, the magnetic poles of the permanent magnet and the opposite end of the electromagnet assembly after the permanent magnet is electrified are opposite, and two hidden conductive columns electrically connected with the electromagnet assembly are arranged on the well cover seat.

Optionally, first notch and second notch are the loop configuration, electromagnet assembly and absorption piece are four groups, four groups electromagnet assembly and four groups absorption piece be respectively annular array distribute in first notch and second notch.

Optionally, the iron cores at the two ends of the coil are provided with limiting rings.

Optionally, a limiting block is fixedly arranged at the end of the steel sleeve positioned in the first notch.

Optionally, a plurality of balls are arranged in the through hole for inserting the steel sleeve, and the balls are distributed around the central shaft of the through hole.

Optionally, a plurality of drain holes communicated with the inner side of the well lid body are formed in the top of the well lid body, and an annular magnetic isolation plate is fixedly arranged on the inner side wall of the well lid body.

Optionally, the outer wall of the well lid body is provided with a semicircular sliding column along the height direction of the outer wall, and a sliding hole corresponding to the sliding column is formed in the inner side wall of the well lid seat.

Optionally, the two sides of the top of the well cover seat are provided with hidden holes for installing the conductive posts, and the top of each hidden hole is covered with a rubber cover for sealing the top of the hidden hole.

(III) advantageous effects

Compared with the prior art, the utility model provides an anti-theft well lid, which has the following beneficial effects:

1. the well cover is locked and unlocked by matching the electromagnet assembly and the adsorption piece, so that the anti-theft performance is good, and the well cover with the structure can be arranged on a road with large water discharge because the electromagnet assembly and the adsorption piece are both of structures which are not easy to damp and damage, so that the well cover has wide applicability;

2. according to the utility model, the magnetic isolation plate is fixedly arranged on the inner side wall of the well lid body, and the annular magnetic isolation plate can prevent a thief from throwing a magnet into the inner side of the well lid body through the drainage hole to drive the adsorption piece to move, so that the anti-theft performance of the well lid is further improved;

3. according to the utility model, the sliding columns are arranged on the well lid body, the sliding holes corresponding to the sliding columns are formed in the well lid seat, and the matching of the sliding columns and the sliding holes can play a role in positioning when the well lid body is installed, so that the adsorption piece in the first notch can be aligned to the electromagnet assembly in the second notch, and the normal use of an anti-theft function is facilitated.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic overall sectional structure of the present invention;

FIG. 3 is a schematic diagram of the electromagnet assembly of the present invention;

fig. 4 is a schematic structural view of the adsorbing member of the present invention.

In the figure: 1. a well cover seat; 2. a well lid body; 3. a first notch; 4. an electromagnet assembly; 401. an iron core; 402. a limiting ring; 403. a coil; 5. a second notch; 6. an adsorption member 601, a permanent magnet; 602. steel jacket; 603. a limiting block; 7. a ball bearing; 8. a magnetic shield plate; 9. a conductive post; 10. a hidden hole; 11. a rubber cover; 12. a traveler; 13. a slide hole; .

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): referring to fig. 1 to 4, an embodiment of the present invention provides a technical solution: an anti-theft well lid comprises a well lid base 1 and a well lid body 2 covering the top of the well lid base 1, and further comprises a first notch 3 arranged on the inner side of the well lid base 1 and a second notch 5 arranged at the bottom of the well lid body 2, an electromagnet assembly 4 is arranged in the first notch 3, the electromagnet assembly 4 comprises an iron core 401, the iron core 401 is connected on the well lid base 1, a coil 403 is wound on the outer wall of the iron core 401, a movable adsorption piece 6 corresponding to the electromagnet assembly 4 is arranged in the second notch 5, the adsorption piece 6 comprises a steel sleeve 602, a through hole for accommodating the steel sleeve 602 is arranged on the well lid body 2, the steel sleeve 602 is inserted into the through hole, a permanent magnet 601 is fixedly inserted in the steel sleeve 602, the magnetic poles of the permanent magnet 601 and the opposite end of the electromagnet assembly 4 after being electrified are opposite, two hidden conductive posts 9 electrically connected with the electromagnet assembly 4 are arranged on the well lid base 1, when the well lid is installed, firstly, the adsorption piece 6 is moved into the second notch 5 to enable the end part of the adsorption piece to be hidden in a through hole on the well lid body 2, then, the bottom of the well lid body 2 is embedded into the well lid seat 1, at the moment, the movable adsorption piece 6 is attracted by the fixed iron core 401 and inserted into the second notch, so that the locking of the well lid is realized, the stealing difficulty of the well lid is increased, when the interior of the well lid needs to be overhauled, an operator can carry a mobile power supply with proper current, two binding posts are connected with the positive pole and the negative pole of the mobile power supply, a coil 403 is electrified, so that the iron core 401 has magnetism, as the magnetic poles of the opposite ends of the iron core 401 and the permanent magnet 601 after being electrified are the same and are mutually exclusive, under the magnetic force action of the iron core 401, the adsorption piece 6 is moved out of the second notch, so that the unlocking of the well lid is realized, as the electromagnet and the adsorption piece 6 are both of a structure which is not easy to be damaged by moisture, so that the well lid with the structure can be installed on a road with large drainage capacity, have extensive suitability, on this basis, all establish first notch 3 and second notch 5 into the loop configuration, electromagnet assembly 4 and absorption piece 6 are all established to four groups, and four groups electromagnet assembly 4 and four groups absorption piece 6 are annular array respectively and distribute in first notch 3 and second notch 5, and four groups electromagnet assembly 4 and absorption piece 6's cooperation is used, can lock well lid body 2 all around with well lid seat 1 and be connected, have further guaranteed the security of well lid.

In another technical scheme, all be equipped with spacing ring 402 on the iron core 401 that is located coil 403 both ends, so set up, spacing ring 402 can play limiting displacement to coil 403, avoids coil 403 to break away from iron core 401, guarantees electromagnet assembly 4's normal use.

In another technical scheme, a limiting block 603 is fixedly arranged at the end of the steel sleeve 602 positioned in the first notch 3, and the limiting block 603 can limit the steel sleeve 602 and prevent the steel sleeve 602 from moving out of the second notch 5.

In another technical scheme, be provided with a plurality of ball 7 in the through-hole that is used for pegging graft steel bushing 602 on the well lid body 2, a plurality of ball 7 encircles the distribution along the center pin of through-hole, and ball 7 can reduce the friction between steel bushing 602 and the through-hole, the removal of the steel bushing 602 of being convenient for.

In another technical scheme, a plurality of wash port rather than the inboard communicating wash port has been seted up at 2 tops of well lid body, and 2 inside walls of well lid body are fixed to be provided with and are annular magnetic shield 8, and the wash port can play the drainage effect, and annular magnetic shield 8 can prevent that the thief from dropping into magnet through the drain port to 2 inboards of well lid body and drive adsorption element 6 and remove, has further improved the theftproof performance of well lid.

In another technical scheme, 2 outer walls of well lid body are provided with semicircular sliding columns 12 along its direction of height integrated into one piece, and 1 inside wall of well lid seat has seted up the slide opening 13 corresponding with sliding columns 12, and when the installation of well lid body 2, the cooperation of slide opening 13 and sliding columns 12 can play the positioning action for the electro-magnet subassembly 4 in the second notch 5 can be aimed at to the absorption piece 6 in the first notch 3, the normal use of the theftproof function of being convenient for.

In another technical scheme, 1 top both sides of well lid seat are offered and are used for the installation to lead the hidden hole 10 of electrical pillar 9, and hidden hole 10 top lid closes its top seal's gluey lid 11, will lead electrical pillar 9 hidden installation, can further increase the theftproof performance of well lid, utilizes gluey lid 11 sealed to hidden hole 10, can avoid impurity to enter into hidden hole 10 in, influences the use of leading electrical pillar 9.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an anti-theft well lid, fits including well lid seat (1) and lid the well lid body (2) at well lid seat (1) top, its characterized in that: the well lid is characterized by further comprising a first notch (3) formed in the inner side of the well lid base (1) and a second notch (5) formed in the bottom of the well lid body (2), an electromagnet assembly (4) is installed in the first notch (3), the electromagnet assembly (4) comprises an iron core (401), the iron core (401) is connected onto the well lid base (1), a coil (403) is wound on the outer wall of the iron core (401), a movable adsorption piece (6) corresponding to the electromagnet assembly (4) is arranged in the second notch (5), the adsorption piece (6) comprises a steel sleeve (602), a through hole used for containing the steel sleeve (602) is formed in the well lid body (2), the steel sleeve (602) is inserted into the through hole, a permanent magnet (601) is fixedly inserted into the steel sleeve (602), and is opposite to a magnetic pole of the opposite end of the permanent magnet (601) opposite to the end of the electromagnet assembly (4) after being electrified, the well cover seat (1) is provided with two hidden conductive columns (9) which are electrically connected with the electromagnet assembly (4).

2. The anti-theft well lid according to claim 1, characterized in that: first notch (3) and second notch (5) are the loop configuration, electromagnet assembly (4) and absorption piece (6) are four groups, four groups electromagnet assembly (4) and four groups absorption piece (6) are respectively the circular array distribute in first notch (3) and second notch (5).

3. The anti-theft well lid according to claim 1, characterized in that: limiting rings (402) are arranged on the iron cores (401) at two ends of the coil (403).

4. The anti-theft well lid according to claim 1, characterized in that: and a limiting block (603) is fixedly arranged at the end part of the steel sleeve (602) positioned in the first notch (3).

5. The anti-theft well lid according to claim 1, characterized in that: the well lid body (2) is used for being plugged with a plurality of balls (7) are arranged in the through hole of the steel sleeve (602), and the balls (7) are distributed along the central shaft of the through hole in a surrounding mode.

6. The anti-theft well lid according to claim 1, characterized in that: the manhole cover is characterized in that a plurality of drain holes communicated with the inner side of the manhole cover body (2) are formed in the top of the manhole cover body (2), and an annular magnetic isolation plate (8) is fixedly arranged on the inner side wall of the manhole cover body (2).

7. The anti-theft well lid according to claim 1, characterized in that: the manhole cover is characterized in that the outer wall of the manhole cover body (2) is provided with a semicircular sliding column (12) in an integrated manner along the height direction of the outer wall, and a sliding hole (13) corresponding to the sliding column (12) is formed in the inner side wall of the manhole cover seat (1).

8. The anti-theft well lid according to claim 1, characterized in that: the improved well cover is characterized in that hidden holes (10) used for installing the conductive columns (9) are formed in two sides of the top of the well cover seat (1), and the tops of the hidden holes (10) are covered with rubber covers (11) for sealing the tops of the hidden holes.