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A self-locking municipal anti-theft manhole cover

An anti-theft well, self-locking technology, applied in construction, artificial island, infrastructure engineering and other directions, can solve the problems of easy opening of manhole cover, no practical effect, personal and property safety infringement of others, etc., to protect personal and property safety, It is not easy to be stolen, and it is beneficial to popular use.

Active Publication Date: 2020-07-17
HEFEI WISDOM DRAGON MACHINERY DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Manhole covers for municipal roads are generally metal circular plates, which are used to cover and protect various municipal wellheads to ensure the safety of passing pedestrians or vehicles. Damage to the personal and property safety of others
[0003] At present, in order to prevent the manhole cover from being easily stolen by criminals, certain anti-theft measures are usually added to the manhole cover. Locking is the most common means, but from an economic point of view, only some locks with a relatively simple structure can be added, which also causes The manhole cover is still easy to be pried off, which only serves as a symbolic meaning without practical disadvantages

Method used

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  • A self-locking municipal anti-theft manhole cover
  • A self-locking municipal anti-theft manhole cover
  • A self-locking municipal anti-theft manhole cover

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Experimental program
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specific Embodiment approach 1

[0013] Specific implementation mode one: as Figure 1~Figure 4 As shown, the present invention discloses a self-locking municipal anti-theft well cover, comprising a well cover support 1, a well cover plate 6, a combined circular plate 3, a screw rod 7, two guide poles 2 and two insertion poles 4, the well cover The shape of the support 1 is cylindrical, and two planar installation parts 1-2 are integrally formed on both sides of the bottom end of the inner wall, and an annular limit part 1-3 is integrally formed on the inner wall adjacent to the top position, and the two guide rods 2 is symmetrically fixed on the upper surfaces of the two plane mounting parts 1-2, and the center of the combined circular plate 3 is provided with a threaded through hole 3-1, and the combined circular plate 3 is symmetrically divided into two parts by a radial cutting line. The two parts of the circular plate 3 are respectively provided with guide holes 3-2, and the combined circular plate 3 is ...

specific Embodiment approach 2

[0014] Specific implementation mode two: as figure 1 , 2 As shown, this embodiment is a further description of Embodiment 1. The middle position of the outer wall of the manhole cover support 1 is integrally formed with an annular pre-embedded wing 1-1.

specific Embodiment approach 3

[0015] Specific implementation mode three: as Figure 4 As shown, this embodiment is a further description of Embodiment 1 or Embodiment 2. The corresponding positions of the guide holes 3-2 on the lower surface of the two parts of the combined circular plate 3 are respectively recessed with installation grooves 3-4, The blocking plate 8 is fixed in the installation groove 3-4 by the spring 9, so that the blocking plate 8 is flush with the lower surface of the combined circular plate 3.

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Abstract

The invention relates to a municipal manhole cover, in particular to a self-locking municipal anti-theft manhole cover. A manhole cover support is cylindrical, two planar installation parts are integrally arranged on the two sides of the bottom of the inner wall of the manhole cover support, an annular limiting part is integrally arranged at the position, near the top, of the inner wall of the manhole cover support, two vertical guide rods are symmetrically fixed to the upper surfaces of the two planar installation parts, a threaded through hole is formed in the center of a circular combined plate which is symmetrically divided into two parts by a radial cutting line, the two parts are provided with guide holes in one-to-one sliding fit with the two vertical guide rods respectively, blocking plates are arranged on the lower surfaces of the two parts through springs respectively, two vertical insertion rods are fixed to the upper surfaces of the two parts respectively, the two parts areconnected and fixed into a whole through two fixing plates, a manhole cover plate covers the upper side of the annular limiting part, a threaded rod is fixed to the lower surface of the manhole coverplate and is in threaded fit with the threaded through hole, and the lower surface of the manhole cover plate is provided with two positioning blind holes in one-to-one correspondence with the tops of the two vertical insertion rods. The self-locking municipal anti-theft manhole cover is not stolen easily due to the self-locking function and is simple in structure and easy to manufacture.

Description

technical field [0001] The invention relates to a municipal manhole cover, in particular to a self-locking municipal anti-theft manhole cover. Background technique [0002] Manhole covers for municipal roads are generally metal circular plates, which are used to cover and protect various municipal wellheads to ensure the safety of passing pedestrians or vehicles. Infringement of the personal and property safety of others. [0003] At present, in order to prevent the manhole cover from being easily stolen by criminals, certain anti-theft measures are usually added to the manhole cover. Locking is the most common means, but from an economic point of view, only some locks with a relatively simple structure can be added, which also causes The manhole cover is still easy to be pried off, which only plays a symbolic role and has no practical disadvantages. [0004] In fact, in addition to some municipal wellheads such as pipeline wellheads that need frequent maintenance, there i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D29/14
CPCE02D29/14E02D29/1427E02D29/1481
Inventor 李钧沈义李丽
Owner HEFEI WISDOM DRAGON MACHINERY DESIGN CO LTD