Safe well lid prying device

Abstract

The utility model relates to a safe well lid prying device which comprises a crowbar body, an opening hook perpendicular to the crowbar body is arranged at the front end of the crowbar body, a protruding tip is arranged on the front end face of the crowbar body, and the end of the opening hook is bent to form an anti-falling hook. Gravel can be cleaned through the tip end of the crowbar body, the difficulty of prying up a well lid is reduced, levers are formed at the two positions of the well lid respectively, the well lid is loosened and then pried up, physical strength consumed for opening the well lid can be saved, and the operation efficiency of opening the inspection well lid is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of manhole cover opening devices, and in particular to a manhole cover safety prying device. Background Art

[0002] In urban construction, underground pipelines are set up. The section from the pipeline to the ground is called a manhole. A variety of manhole covers, including heavy-duty ductile iron manhole covers, are set at the manhole opening. When it is necessary to open the manhole cover, the front end of a crowbar is inserted into the grid hole of the manhole cover, and with the hole wall and the edge of the grid hole as the fulcrum, a simple lever structure is formed to pry up and open the manhole cover. However, in actual operation, due to sundries such as sand and gravel being stuffed into the edge of the manhole cover and the grid hole, the opening difficulty increases, and the crowbar lacks fixation when inserted into the manhole cover hole. The crowbar is prone to slide along the hole wall after being stressed, and then fall off from the manhole cover, resulting in the manhole cover falling and hurting the feet of construction workers. Therefore, designing a manhole cover safety prying device that can reduce the opening difficulty and protect the safety of workers has become an urgent technical problem to be solved. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a manhole cover safety prying device.

[0004] The technical solution of the present utility model, a manhole cover safety prying device, includes a crowbar main body. A perpendicular opening hook is provided at the front end of the crowbar main body. A protruding tip is provided on the front end face of the crowbar main body. The end of the opening hook is bent to form an anti-detachment hook.

[0005] After adopting the above structure, by setting a protruding tip on the front end face of the crowbar main body, it can be more easily inserted into the grid hole on the heavy-duty ductile iron manhole cover and the prying hole at the edge of the base, dredge the blocked rainwater grid hole, and scrape the sand and gravel at the gap between the manhole cover and the base; after removing the sand and gravel, insert the tip from the prying hole into the gap between the manhole cover and the base, and the front end of the crowbar main body abuts against the edge of the prying hole to form the first lever, slightly prying up and loosening the manhole cover, which helps to open the manhole cover subsequently; with the tip against the manhole cover as the fulcrum, the opening hook extends into the grid hole to connect with the manhole cover, and push the tail end of the crowbar main body upward to form the second lever, completely prying up and opening the manhole cover. The anti-detachment hook extends into the grid hole together with the opening hook and can hook on the lower edge of the grid hole to prevent the opening hook from falling out of the grid hole when the manhole cover is pried up, protecting the safety of the manhole cover and construction workers; it realizes that the tip of the crowbar main body clears the sand and gravel, reduces the difficulty of prying up the manhole cover, forms levers at two positions of the manhole cover respectively, loosens the manhole cover and then pries it up, can save the physical strength consumed in opening the manhole cover, and improves the operation efficiency of opening the manhole cover.

[0006] As a further improvement of the present utility model, a handle is provided at the tail end of the crowbar main body, and the handle is connected to the crowbar main body to form a T-shaped structure.

[0007] After adopting the above structure, by grasping the handle and exerting force to pry up the manhole cover, the device is more convenient to use and saves more physical strength.

[0008] As a further improvement of the present utility model, the anti-detachment hook faces the tail end of the crowbar body.

[0009] After adopting the above structure, with the anti-detachment hook facing the tail end of the crowbar body, the anti-detachment hook keeps hooking upward on the grid hole when prying up the manhole cover. When the manhole cover shakes to both sides, the opening hook is not likely to become loose from the grid hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The structure schematic diagram of the present utility model is shown.

[0011] 1 - crowbar body, 2 - opening hook, 3 - tip, 4 - anti-detachment hook, 5 - handle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] As Figure 1 shown, a manhole cover safety prying device includes a crowbar body 1. A perpendicular opening hook 2 is provided at the front end of the crowbar body 1. A convex tip 3 is provided on the front end face of the crowbar body 1. The end of the opening hook 2 is bent to form an anti-detachment hook 4.

[0013] By providing a convex tip 3 on the front end face of the crowbar body 1, it can be more easily inserted into the grid hole on the heavy-duty ductile iron manhole cover and the prying hole at the edge of the base, dredge the blocked rainwater grid hole, and scrape the sand and gravel at the gap between the manhole cover and the base; after removing the sand and gravel, insert the tip 3 from the prying hole into the gap between the manhole cover and the base, and the front end of the crowbar body 1 abuts against the edge of the prying hole to form the first lever, slightly prying up and loosening the manhole cover, which helps to subsequently open the manhole cover; with the tip 3 against the manhole cover as the fulcrum, the opening hook 2 extends into the grid hole to connect the manhole cover, and push the tail end of the crowbar body 1 upward to form the second lever, completely prying up and opening the manhole cover. The anti-detachment hook 4 extends into the grid hole together with the opening hook 2 and can hook on the lower edge of the grid hole to prevent the opening hook 2 from falling off the grid hole when prying up the manhole cover, protecting the safety of the manhole cover and the construction workers; it realizes that the tip 3 of the crowbar body 1 clears the sand and gravel, reduces the difficulty of prying up the manhole cover, forms levers at two positions of the manhole cover respectively, loosens the manhole cover and then pries it up, can save the physical strength consumed in opening the manhole cover, and improve the operation efficiency of opening the manhole cover.

[0014] A handle 5 is provided at the tail end of the crowbar body 1, and the handle 5 is connected to the crowbar body 1 to form a T-shaped structure.

[0015] By grasping the handle 5 and exerting force to pry up the manhole cover, the device is more convenient to use, saves more physical strength, and improves the comfort when pushing the crowbar body 1.

[0016] The anti-detachment hook 4 faces the tail end of the crowbar body 1.

[0017] By orienting the anti-detachment hook 4 towards the tail end of the crowbar body 1, the anti-detachment hook 4 is kept hooking upwards on the grating hole when prying up the manhole cover. When the manhole cover sways to both sides, the opening hook 2 is not likely to become loose from the grating hole.

Claims

1. A manhole cover safety prying device, comprising a crowbar main body (1), and an opening hook (2) perpendicular to the front end of the crowbar main body (1), characterized in that: The front end face of the crowbar main body (1) is provided with a protruding tip (3), and the end of the opening hook (2) is bent to form an anti-detachment hook (4); the tail end of the crowbar main body (1) is provided with a handle (5), and the handle (5) is connected to the crowbar main body (1) to form a T-shaped structure.

2. The manhole cover safety prying device according to claim 1, characterized in that: The anti-detachment hook (4) faces the tail end of the crowbar main body (1).

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