CN103112810A - Inspection shaft cover opening device - Google Patents

Abstract

The invention provides a device for opening a manhole cover, which includes a chain and a crowbar. Both ends of the chain are provided with a hook body I for cooperating with the manhole cover to hook the manhole cover. The front end of the crowbar is provided with a hook The hook body II for hanging the chain is provided with a universal wheel assembly on the crowbar, and the crowbar uses the universal wheel assembly as a support to stir up the chain. The invention is not easy to cause damage when opening the well cover, saves time and labor when opening the well cover, and is convenient to lift and move the well cover.

Description

A manhole cover opening device

technical field

The invention relates to a device for opening a manhole cover.

Background technique

In our daily work, we often have to deal with all kinds of manhole covers, and the opening of manhole covers has become a headache in our work. Generally, the manhole cover is opened with a crowbar or a rope. It is not easy to open with a rope. If you open the manhole cover with a crowbar, etc., it will cause a certain degree of damage to the manhole cover. Over time, it will affect the strength and appearance of the manhole cover.

Contents of the invention

The technical problem to be solved by the present invention is to provide a device for opening the manhole cover, which is not easy to cause damage when the manhole cover is opened, saves time and labor when opening the manhole cover, and is convenient to lift and move the manhole cover.

In order to solve the above-mentioned existing technical problems, the present invention adopts the following scheme: a device for opening a manhole cover, including a chain and a crowbar, and both ends of the chain are provided with a hook body I for cooperating with the manhole cover to hook the manhole cover , the front end of the crowbar is provided with a hook body II for hooking the chain, the crowbar is provided with a universal wheel assembly, and the crowbar uses the universal wheel assembly as a support to stir up the chain.

Preferably, the hook body I is a T-shaped hook.

Preferably, the T-shaped hook includes a rod body I, a rod body II and a sleeve rod, one end of the rod body I is connected to the end of the chain, and the other end is connected to the middle of the rod body II, and the sleeve rod is sleeved on the rod body I and connected with Rod body I is threaded.

As a preference, the crowbar is provided with a connecting rod facing downwards, the universal wheel assembly includes a universal wheel and a universal wheel frame matched with the universal wheel, and the top of the universal wheel frame is provided with a connecting rod Sleeve for rod socket.

Preferably, the sleeve is provided with bolts, and the bolts are threaded into the sleeve from the outside of the sleeve and screwed into the sleeve and abutted on the connecting rod.

Preferably, two universal wheels are provided on the universal wheel frame.

Preferably, the front end of the crowbar is provided with a vertical bar facing upwards, and the hook body II is formed by the intersection of the crowbar and the vertical bar.

Beneficial effect:

The invention adopts the inspection well cover opening device provided by the above technical scheme, which is not easy to cause damage when the well cover is opened, saves time and labor when opening the well cover, and is convenient to lift and move the well cover.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the front view of hook body I of the present invention;

Fig. 3 is a sectional view of the hook body I of the present invention;

Fig. 4 is a schematic structural view of the universal wheel assembly of the present invention.

Detailed ways

As shown in Figures 1 to 4, an inspection well cover opening device includes a chain 2 and a crowbar 1. Both ends of the chain 2 are provided with a hook body I3 for cooperating with the well cover to hook the well cover. The front end of the stick 1 is provided with a hook body II for hooking the chain 2 , and the crowbar 1 is provided with a universal wheel assembly 5 , and the crowbar 1 is supported by the universal wheel assembly 5 to lift the chain 2 . The hook body I3 is a T-shaped hook. The T-shaped hook includes a rod body I31, a rod body II32 and a sleeve rod 33. One end of the rod body I31 is connected to the end of the chain 2, and the other end is connected to the middle part of the rod body II32. The sleeve rod 33 is sleeved on the rod body I31 and is connected with the Rod body I31 thread fit. The crowbar 1 is provided with a connecting rod 11 facing downwards, and the universal wheel assembly 5 includes a universal wheel 51 and a universal wheel frame 52 matched with the universal wheel 51, and the universal wheel frame 52 top is A sleeve 53 socketed with the connecting rod 11 is provided. Bolts 54 are provided on the sleeve 53 , and the bolts 54 are screwed into the sleeve 53 from the outside of the sleeve 53 and screwed into the sleeve 53 to push against the connecting rod 11 . Two universal wheels 51 are arranged on the universal wheel frame 52 . The front end of the crowbar 1 is provided with a vertical bar 4 facing upwards, and the hook body II is formed by the intersection of the crowbar 1 and the vertical bar 4 .

Connect the connecting rod 11 on the crowbar 1 to the casing 53 on the universal wheel frame 52, hook the T-shaped hooks at both ends of the chain 2 into the two openings of the manhole cover, and then put the crowbar 1 The front end passes through the chain 2 so that the chain 2 is hung on the corner of the crowbar 1 and the vertical bar 4. At this time, the manhole cover can be lifted up with the support of the universal wheel assembly 5, and then the pried manhole cover can be moved by the universal wheel assembly 5. Adjusting the bolt 54 can make the bolt 54 tighten or leave the connecting rod 11, so that the length of the socket between the connecting rod 11 and the sleeve 53 can be adjusted and then the supporting height of the crowbar 1 can be adjusted. The specific operation of hooking the T-shaped hook into the opening of the well cover plate is as follows: first unscrew the sleeve rod 33, rotate the rod body II32 so that the rod body I31 and the rod body II32 are parallel and extend into the opening of the well cover plate, and then unscrew the sleeve rod 33 make cover rod 33 push against rod body II 32, now rod body I 31 and rod body II 32 are vertically hooked in the perforation of well cover plate, not easy to come off.

Claims (7)

1. An inspection well cover opening device, characterized in that it includes a chain (2) and a crowbar (1), and both ends of the chain (2) are provided with a hook body I for cooperating with the well cover to hook the well cover (3), the front end of the crowbar (1) is provided with the hook body II for hooking the chain (2), the universal wheel assembly (5) is provided on the crowbar (1), and the crowbar ( 1) Lift up the chain (2) with the universal wheel assembly (5) as the support. 2. The inspection shaft cover opening device according to claim 1, characterized in that: the hook body I (3) is a T-shaped hook. 3. A manhole cover opening device according to claim 2, characterized in that: the T-shaped hook includes rod body I (31), rod body II (32) and sleeve rod (33), and the rod body I (31 ) one end is connected to the end of the chain (2), and the other end is transferred to the middle of the rod body II (32). 4. The manhole cover opening device according to claim 1, 2 or 3, characterized in that: the crowbar (1) is provided with a connecting rod (11) facing downwards, and the universal wheel assembly (5) It includes the universal wheel (51) and the universal wheel frame (52) matched with the universal wheel (51). The top of the universal wheel frame (52) is provided with a sleeve that is socketed with the connecting rod (11). Tube (53). 5. A manhole cover opening device according to claim 4, characterized in that: the casing (53) is provided with a bolt (54), and the bolt (54) connects with the casing (53) Pipe (53) screw thread fits in the sleeve pipe (53) and withstands on the connecting rod (11). 6. The inspection shaft cover opening device according to claim 5, characterized in that: the universal wheel frame (52) is provided with two universal wheels (51). 7. A manhole cover opening device according to claim 1 or 2 or 3 or 5 or 6, characterized in that: the front end of the crowbar (1) is provided with a vertical bar (4) facing upwards, the The hook body II is formed by the intersection angle of the crowbar (1) and the vertical bar (4).

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