An anti-theft power manhole cover

Abstract

The present invention relates to the technical field of manhole covers, and discloses an electric power anti-theft manhole cover, which includes a mounting base, and further includes: a manhole cover body, the manhole cover body is horizontally arranged above the mounting base; a degree scale, the degree scale is engraved on the inner edge of the top surface of the mounting base, and the degree scale is used for precisely rotating the manhole cover body; a locking assembly, the locking assembly is arranged at the bottom of the manhole cover body, and the locking assembly is used to lock the manhole cover body and the mounting base; a lock groove assembly, the lock groove assembly is arranged on the inner wall of the mounting base, and the lock groove assembly is used to lock the locking assembly. The present invention can lock the mounting base and the manhole cover body, and non-staff members cannot open it after locking. In addition, when the staff needs to unlock, there is no need to carry other tools, and only need to rotate a specified angle through the jack to unlock the manhole cover body, which is convenient and fast, and has a good anti-theft effect, thereby improving the use effect of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of manhole covers, and in particular to an anti-theft power manhole cover. Background Art

[0002] ‌A power manhole cover refers to a cover used to cover power facilities, which is usually installed on underground power equipment in public places such as streets and squares, such as power lines, substations, etc. The main function of the power manhole cover is to protect power facilities, prevent accidental electric shock accidents caused by people and objects touching by mistake, and at the same time facilitate the power department to repair and maintain power equipment. The power manhole cover is usually made of cast iron. Due to its recyclable value, the cast iron manhole cover is often stolen, which often causes "biting people" and "biting cars" incidents at the wellhead, not only causing losses to national property, but also posing potential safety hazards to pedestrians and vehicle driving.

[0003] For example, for an anti-theft power manhole cover disclosed in the patent with the publication number CN219157767U, a specific tool is required to open the manhole cover, which requires the staff to carry more tools during work and is inconvenient to use. Moreover, thieves can also imitate the "key" to unlock in this way, reducing the safety of use. Therefore, there is an urgent need to design an anti-theft power manhole cover. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to propose an anti-theft power manhole cover.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An anti-theft power manhole cover, including a mounting seat, further including:

[0007] A manhole cover body, which is horizontally arranged above the mounting seat;

[0008] Degree scale, which is engraved on the inner edge of the top surface of the mounting seat and is used for precise rotation of the manhole cover body;

[0009] A locking component, which is arranged at the bottom of the manhole cover body and is used to lock the manhole cover body and the mounting seat;

[0010] A lock groove component, which is arranged on the inner wall of the mounting seat and is used to lock the locking component.

[0011] As a further technical solution of the present invention, the locking component includes: an L-shaped bracket, there are two L-shaped brackets, and the vertical ends of the two L-shaped brackets are fixedly installed at the bottom of the manhole cover body, and a plurality of evenly distributed balls are rotatably installed at the bottom of the horizontal side of each L-shaped bracket.

[0012] As a further technical solution of the present invention, the lock groove assembly includes: a first circular groove, a second circular groove and a third circular groove. The first circular groove, the second circular groove and the third circular groove are all opened on the inner wall of the mounting seat. The second circular groove is located between the first circular groove and the third circular groove, and the first circular groove, the second circular groove and the third circular groove are arranged at equal intervals in sequence.

[0013] As a further technical solution of the present invention, a first opening groove passing through the mounting seat is opened at the top of the first circular groove. There are two first opening grooves, and the two first opening grooves are symmetrically arranged. The first opening groove is adapted to the horizontal side of the L-shaped bracket.

[0014] As a further technical solution of the present invention, a second opening groove communicating with the first circular groove is opened at the top of the second circular groove. There are two second opening grooves, and the two second opening grooves are symmetrically arranged. The second opening groove is adapted to the horizontal side of the L-shaped bracket.

[0015] As a further technical solution of the present invention, a third opening groove communicating with the second circular groove is opened at the top of the third circular groove. There are two third opening grooves, and the two third opening grooves are symmetrically arranged. The third opening groove is adapted to the horizontal side of the L-shaped bracket. Two symmetrically arranged stoppers are also fixed inside the third circular groove.

[0016] As a further technical solution of the present invention, the first opening groove, the second opening groove and the third opening groove are all arranged in a mutually staggered manner, and the degree of stagger between the first opening groove, the second opening groove and the third opening groove is an integer.

[0017] As a further technical solution of the present invention, chutes are opened on both sides of the bottom of each of the first opening groove, the second opening groove and the third opening groove. A slide plate is slidably installed inside each chute, and the bottom of each slide plate is a friction surface.

[0018] As a further technical solution of the present invention, two vertically arranged and centrally symmetric vertical grooves are opened on the inner wall of the mounting seat. Each vertical groove communicates with the first circular groove, the second circular groove and the third circular groove. Three uniformly distributed one-way baffles are hinged inside each vertical groove through one-way elastic hinges.

[0019] As a further technical solution of the present invention, two symmetrically arranged insertion holes are opened at the top of the manhole cover body, and the two insertion holes both pass through the manhole cover body.

[0020] The beneficial effects of the present invention are as follows:

[0021] First, in the present invention, through the setting of the locking component and the lock groove component, the mounting seat and the manhole cover body can be locked, and non-staff members cannot open it after locking. In addition, when the staff needs to unlock, there is no need to carry other tools. Just rotate the specified angle through the insertion hole to unlock the manhole cover body, which is convenient and fast, and has good anti-theft effect, thereby improving the use effect of the device;

[0022] Second, in the present invention, through the settings of the lock groove assembly and the upper lock assembly, the manhole cover body can be quickly installed, and the manhole cover body can be locked after installation, which is convenient and fast. In addition, through the setting of the sliding plate, it can also prevent non-staff from making the horizontal side of the L-shaped bracket and the top of the circular groove abut and rotate to unlock, thereby improving the safety of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a power theft-proof manhole cover proposed by the present invention;

[0024] Figure 2 is a bottom view structural diagram of a power theft-proof manhole cover proposed by the present invention;

[0025] Figure 3 is Figure 2 an enlarged schematic diagram of part A in

[0026] Figure 4 is a schematic structural diagram of a power theft-proof manhole cover proposed by the present invention after removing the manhole cover body;

[0027] Figure 5 is a first circular groove cross-sectional structural diagram of a power theft-proof manhole cover proposed by the present invention;

[0028] Figure 6 is a second circular groove cross-sectional structural diagram of a power theft-proof manhole cover proposed by the present invention;

[0029] Figure 7 is a third circular groove cross-sectional structural diagram of a power theft-proof manhole cover proposed by the present invention;

[0030] Figure 8 is a third circular groove bottom view structural diagram of a power theft-proof manhole cover proposed by the present invention;

[0031] Figure 9 is Figure 8 an enlarged schematic diagram of part B in

[0032] In the figure: 1, mounting seat; 2, manhole cover body; 3, jack; 4, L-shaped bracket; 5, degree scale; 6, ball; 7, first circular groove; 8, second circular groove; 9, third circular groove; 10, one-way baffle; 12, vertical groove; 13, first opening groove; 14, second opening groove; 15, third opening groove; 16, stop block; 17, sliding groove; 18, sliding plate. DETAILED DESCRIPTION OF THE INVENTION

[0033] In order to make the technical means, creative features, achieved purposes and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to the attached Figure 1 - attached Figure 9 , a power theft-proof manhole cover, including a mounting base 1, and further including: a manhole cover body 2, a degree scale 5, a locking assembly, and a lock groove assembly. The manhole cover body 2 is horizontally arranged above the mounting base 1. The degree scale 5 is engraved on the inner edge of the top surface of the mounting base 1. The degree scale 5 is used for precisely rotating the manhole cover body 2. The locking assembly is arranged at the bottom of the manhole cover body 2 and is used to lock the manhole cover body 2 and the mounting base 1. The lock groove assembly is arranged on the inner wall of the mounting base 1 and is used to lock the locking assembly.

[0036] As described above, the mounting base 1 and the manhole cover body 2 can be locked, and non-staff members cannot open it after locking. In addition, when the staff needs to unlock it, there is no need to carry other tools, making the unlocking convenient and fast.

[0037] Please refer to the attached Figure 1 - attached Figure 3 , in a preferred embodiment, the locking assembly includes: L-shaped brackets 4. There are two L-shaped brackets 4. The end parts of the vertical sides of the two L-shaped brackets 4 are fixedly installed at the bottom of the manhole cover body 2. A plurality of evenly distributed balls 6 are rotatably installed at the bottom of the horizontal side of each L-shaped bracket 4.

[0038] Specifically, it is convenient for the rotation of the manhole cover body 2 and the L-shaped brackets 4, making it labor-saving and convenient for the staff to unlock the manhole cover body 2.

[0039] Please refer to the attached Figure 1 - attached Figure 9, in a preferred embodiment, the lock groove assembly includes: a first circular groove 7, a second circular groove 8, and a third circular groove 9. The first circular groove 7, the second circular groove 8, and the third circular groove 9 are all formed in the inner wall of the mounting base 1. The second circular groove 8 is located between the first circular groove 7 and the third circular groove 9. The first circular groove 7, the second circular groove 8, and the third circular groove 9 are arranged at equal intervals in sequence. A first opening groove 13 passing through the mounting base 1 is formed at the top of the first circular groove 7. There are two first opening grooves 13, and the two first opening grooves 13 are symmetrically arranged. The first opening groove 13 is adapted to the horizontal side of the L-shaped bracket 4. A second opening groove 14 communicating with the first circular groove 7 is formed at the top of the second circular groove 8. There are two second opening grooves 14, and the two second opening grooves 14 are symmetrically arranged. The second opening groove 14 is adapted to the horizontal side of the L-shaped bracket 4. A third opening groove 15 communicating with the second circular groove 8 is formed at the top of the third circular groove 9. There are two third opening grooves 15, and the two third opening grooves 15 are symmetrically arranged. The third opening groove 15 is adapted to the horizontal side of the L-shaped bracket 4. Two symmetrically arranged stoppers 16 are also fixed inside the third circular groove 9. The first opening groove 13, the second opening groove 14, and the third opening groove 15 are all arranged in a staggered manner, and the degree of stagger between the first opening groove 13, the second opening groove 14, and the third opening groove 15 is an integer, which is convenient for the staff to rotate. A chute 17 is formed on both sides of the bottom of each of the first opening groove 13, the second opening groove 14, and the third opening groove 15. A sliding plate 18 is slidably installed inside each chute 17. The bottom of each sliding plate 18 is a friction surface. Two vertically arranged and centrally symmetric vertical grooves 12 are formed in the inner wall of the mounting base 1. Each vertical groove 12 communicates with the first circular groove 7, the second circular groove 8, and the third circular groove 9. Three uniformly distributed one-way baffles 10 are hinged inside each vertical groove 12 through one-way elastic hinges;

[0040] Preferably, it not only enables the staff to unlock conveniently, but also avoids unlocking by non-staff members. In addition, it can reset the lock groove assembly after being damaged by non-staff members.

[0041] Please refer to the appendix Figure 1 , in a preferred embodiment, two symmetrically arranged jacks 3 are formed at the top of the manhole cover body 2, and the two jacks 3 both pass through the manhole cover body 2;

[0042] Furthermore, the jack 3 facilitates the rotation and lifting of the manhole cover body 2. It can be rotated and lifted by gripping the inner wall of the jack 3, and can be accurately rotated through the degree scale 5.

[0043] The working principle of the present invention: First, embed the mounting base 1 into the ground, and then insert the two L-shaped brackets 4 into the two vertical grooves 12. Due to the arrangement of the one-way baffles 10, the horizontal side of the L-shaped bracket 4 can be smoothly inserted into the third circular groove 9. Then, randomly rotate the manhole cover body 2 so that the lowermost one-way baffle 10 can be reset, and the installation of the manhole cover body 2 can be completed;

[0044] When the staff needs to disassemble the manhole cover body 2, first rotate the manhole cover body 2 through the jack 3 so that the horizontal side of the L-shaped bracket 4 contacts the stopper 16. Then rotate the manhole cover body 2 to drive the L-shaped bracket 4 to rotate by a specified angle, align the horizontal side of the L-shaped bracket 4 with the third opening groove 15, and lift the manhole cover body 2 upward so that the horizontal side of the L-shaped bracket 4 moves upward into the second circular groove 8. Then rotate the horizontal side of the L-shaped bracket 4 by a specified angle inside the second circular groove 8 and lift the manhole cover body 2 upward so that the horizontal side of the L-shaped bracket 4 enters the first circular groove 7. Finally, rotate the horizontal side of the L-shaped bracket 4 by a specified angle inside the first circular groove 7 and lift the manhole cover body 2 upward to separate the L-shaped bracket 4 from the mounting seat 1 to complete unlocking. It should be noted that the angles between the first opening groove 13, the second opening groove 14, the third opening groove 15 and the stopper 16 are preset angles and are not fixed and unchangeable;

[0045] When a non-staff member disassembles the manhole cover, first, the non-staff member cannot clearly know how many degrees to rotate. Even if the non-staff member lifts the manhole cover body 2 upward so that the top of the horizontal side of the L-shaped bracket 4 contacts and rotates with the top of the third circular groove 9, when rotating the manhole cover body 2 in this way, the horizontal side of the L-shaped bracket 4 will contact the friction surface of the slide plate 18 and cause the slide plate 18 to move. Then the slide plate 18 blocks the third opening groove 15. In summary, it makes it impossible for non-staff members to steal the manhole cover body 2;

[0046] When a non-staff member rotates the manhole cover body 2 to block the third opening groove 15 with the slide plate 18, the staff can follow the normal opening method. When the L-shaped bracket 4 body cannot be lifted into the second circular groove 8, it indicates that the slide plate 18 blocks the third opening groove 15. Then the staff needs to lift the manhole cover body 2 and make the horizontal side of the L-shaped bracket 4 contact the slide plate 18, and rotate the horizontal side of the L-shaped bracket 4 to make the slide plate 18 slide into the chute 17 again to unlock again. It should be noted that the contact surface between the slide plate 18 and the chute 17 is rough, which increases the stability of the slide plate 18. And because the length of the slide plate 18 is greater than the length of the opening groove, the slide plate 18 will not separate from the chute 17;

[0047] In summary, not only does it not require special tools to facilitate the staff to unlock and disassemble the manhole cover body 2, but it also can prevent non-staff members from stealing the manhole cover body 2, thereby improving the use effect of the device.

[0048] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An electric anti-theft manhole cover, comprising a mounting seat (1), characterized in that: Also includes: A manhole cover body (2), wherein the manhole cover body (2) is horizontally arranged above the mounting seat (1); A degree scale (5), the degree scale (5) being engraved on the inner edge of the top surface of the mounting seat (1), the degree scale (5) being used for accurately rotating the manhole cover body (2); A locking component, the locking component being arranged at the bottom of the manhole cover body (2), and the locking component being used to lock the manhole cover body (2) and the mounting seat (1); A lock slot assembly, the lock slot assembly being arranged on the inner wall of the mounting seat (1), the lock slot assembly being used to lock the locking assembly; The locking assembly comprises: an L-shaped bracket (4), wherein there are two L-shaped brackets (4), the vertical ends of the two L-shaped brackets (4) are fixedly mounted on the bottom of the manhole cover body (2), and the bottom of the horizontal side of each L-shaped bracket (4) is rotatably mounted with a plurality of evenly distributed balls (6), and the locking groove assembly comprises: a first circular groove (7), a second circular groove (8) and a third circular groove (9), wherein the first circular groove (7), the second circular groove (8) and the third circular groove (9) are all formed on the inner wall of the mounting seat (1), the second circular groove (8) is located between the first circular groove (7) and the third circular groove (9), and the first circular groove (7) is located between the first circular groove (7) and the third circular groove (9). ), a second circular groove (8) and a third circular groove (9) are arranged at equal intervals in sequence; a first opening groove (13) passing through the mounting seat (1) is provided at the top of the first circular groove (7); there are two first opening grooves (13), the two first opening grooves (13) are symmetrically arranged, and the first opening groove (13) is adapted to the horizontal side of the L-shaped bracket (4); a second opening groove (14) communicating with the first circular groove (7) is provided at the top of the second circular groove (8); there are two second opening grooves (14), the two second opening grooves (14) are symmetrically arranged, and the second opening groove (14) is adapted to the horizontal side of the L-shaped bracket (4); The third circular groove (9) is adapted to the side edges, a third opening groove (15) is provided on the top of the third circular groove (9) and is connected to the second circular groove (8), there are two third opening grooves (15), the two third opening grooves (15) are symmetrically arranged, the third opening groove (15) is adapted to the horizontal side of the L-shaped bracket (4), two symmetrically arranged stoppers (16) are fixed inside the third circular groove (9), the first opening groove (13), the second opening groove (14) and the third opening groove (15) are all staggered with each other, and the degree of staggered position between the first opening groove (13), the second opening groove (14) and the third opening groove (15) is is an integer, each of the first opening groove (13), the second opening groove (14) and the third opening groove (15) is provided with a slide groove (17) on both sides of the bottom, each of the slide grooves (17) is slidably mounted with a slide plate (18) inside, and the bottom of each slide plate (18) is a friction surface, the inner wall of the mounting seat (1) is vertically provided with two centrally symmetrically arranged vertical grooves (12), each of the vertical grooves (12) is connected to the first circular groove (7), the second circular groove (8) and the third circular groove (9), and each of the vertical grooves (12) is hinged with three uniformly distributed one-way baffles (10) via a one-way elastic hinge.

2. The electric anti-theft manhole cover according to claim 1, characterized in that: Two symmetrically arranged insertion holes (3) are provided on the top of the manhole cover body (2), and both insertion holes (3) pass through the manhole cover body (2).

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