CN215765024U

CN215765024U - Novel manhole structure

Info

Publication number: CN215765024U
Application number: CN202121949786.3U
Authority: CN
Inventors: 杜昕; 王娜; 王亚
Original assignee: Xuzhou Industrial Boiler Co ltd
Current assignee: Xuzhou Industrial Boiler Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-02-08
Anticipated expiration: 2031-08-19

Abstract

The utility model discloses a novel manhole structure which comprises a manhole ring, a manhole cover, a hinge seat, an adjustable bolt, a pressing plate and a nut, wherein the hinge seat is fixedly connected to the manhole cover, the adjustable bolt is rotatably connected to the hinge seat, the pressing plate is arranged at the upper end of the manhole ring, a first through hole matched with the adjustable bolt is formed in the pressing plate, the adjustable bolt penetrates through the first through hole, the nut is in threaded connection with the adjustable bolt, the pressing plate is located between the nut and the manhole ring, a reinforcing rib is fixedly connected between the hinge seat and the manhole cover, one end of the adjustable bolt is provided with a rotating end, and a second through hole is formed in the rotating end. According to the manhole cover, the fixed bolt is changed into an adjustable bolt, so that the angle and the direction of the bolt can be adjusted when the manhole cover is installed and disassembled, the bolt is not easy to collide with a manhole ring, the installation and the disassembly are convenient, the structure is simple, and the practicability is high.

Description

Novel manhole structure

Technical Field

The utility model belongs to the technical field of boiler manholes, and particularly relates to a novel manhole structure.

Background

A manhole refers to an open structure for personnel to enter and exit equipment for installation, maintenance, and safety inspection. The manhole structure used on the boiler in the prior art generally comprises a manhole ring and a manhole cover, and sometimes, when the diameter of the boiler or the cylinder with high pressure is increased, the height of the manhole ring needs to be increased.

Wherein the manhole cover is fixedly connected with two fixed bolts, when the manhole cover is installed and disassembled, the two fixed bolts always easily rub and collide with the manhole ring, and especially under the conditions of height increase and higher height of the manhole ring, the manhole cover is not easy to install or disassemble.

Therefore, in view of the above technical problems, there is a need to provide a new manhole structure.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a new manhole structure to solve the above problems.

In order to achieve the above object, an embodiment of the present invention provides the following technical solutions:

the utility model provides a novel manhole structure, includes manhole circle, manhole cover, hinge seat, adjustable bolt, clamp plate and nut, hinge seat fixed connection be in on the manhole cover, adjustable bolt rotates to be connected on the hinge seat, the clamp plate sets up the upper end of manhole circle, set up on the clamp plate with the first through-hole of adjustable bolt assorted, adjustable bolt runs through first through-hole, nut threaded connection is in on the adjustable bolt, the clamp plate is located between nut and the manhole circle.

As a further improvement of the utility model, a reinforcing rib is fixedly connected between the hinge seat and the manhole cover.

As a further improvement of the present invention, one end of the adjustable bolt is provided with a rotation end, the rotation end is provided with a second through hole, the hinge base is provided with a pair of third through holes matched with the second through holes, and a pin shaft is inserted between the second through hole and the third through holes.

As a further improvement of the utility model, one end of the pin shaft is provided with a pin socket, and a cotter pin is inserted into the pin socket.

As a further improvement of the utility model, a washer is arranged between the nut and the pressure plate.

As a further improvement of the utility model, the upper end of the manhole cover is fixedly connected with a hoop matched with the inner wall of the manhole ring.

As a further improvement of the utility model, a gasket is arranged between the manhole ring and the manhole cover.

Compared with the prior art, the utility model has the following advantages:

according to the manhole cover, the fixed bolt is changed into an adjustable bolt, so that the angle and the direction of the bolt can be adjusted when the manhole cover is installed and disassembled, the bolt is not easy to collide with a manhole ring, the installation and the disassembly are convenient, the structure is simple, and the practicability is high.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Figure 1 is a front sectional view of a novel manhole structure in an embodiment of the present invention;

figure 2 is a side sectional view of a novel manhole structure in an embodiment of the present invention;

figure 3 is a top view of a novel manhole structure in an embodiment of the present invention.

In the figure: 1. the hinge comprises a nut, 2 parts of a gasket, 3 parts of an adjustable bolt, 301 parts of a rotating end, 4 parts of a pressing plate, 5 parts of a manhole ring, 6 parts of a pin shaft, 7 parts of a hoop, 8 parts of a gasket, 9 parts of a manhole cover, 10 parts of a hinge seat, 11 parts of a split pin and 12 parts of a reinforcing rib.

Detailed Description

The present invention will be described in detail below with reference to embodiments shown in the drawings. The embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to the embodiments are included in the scope of the present invention.

The novel manhole structure disclosed in an embodiment of the utility model is shown in fig. 1 to 2, and comprises a manhole ring 5, a manhole cover 9, a hinge base 10, an adjustable bolt 3, a pressure plate 4 and a nut 1, wherein the hinge base 10 is fixedly connected to the manhole cover 9, and a reinforcing rib 12 is fixedly connected between the hinge base 10 and the manhole cover 9 in order to improve the stability of the hinge base 10 relative to the manhole cover 9.

Referring to fig. 1 to 2, the adjustable bolt 3 is rotatably connected to the hinge base 10, and the specific rotational connection manner may be multiple, and this embodiment adopts a connection manner with higher stability and lower cost, which is specifically as follows:

one end of the adjustable bolt 3 is provided with a rotating end 301, the rotating end 301 is provided with a second through hole, the hinge seat 10 is provided with a pair of third through holes matched with the second through hole, and a pin shaft 6 is inserted between the second through hole and the third through hole, so that the adjustable bolt 3 can rotate by taking the pin shaft 6 as an axis.

Referring to fig. 2, a pin socket is formed at one end of the pin shaft 6, an opening pin 11 is inserted into the pin socket, the opening pin 11 is used for preventing the pin shaft 6 from falling off, the stability is high, the integral rotation structure is simple, and the cost is low.

Referring to fig. 1 to 3, a pressing plate 4 is arranged at the upper end of a manhole ring 5, a first through hole matched with an adjustable bolt 3 is formed in the pressing plate 4, the adjustable bolt 3 penetrates through the first through hole, an external thread is separately arranged at the upper section of the adjustable bolt 3, a nut 1 is in threaded connection with the adjustable bolt 3, and the pressing plate 4 is located between the nut 1 and the manhole ring 5.

In other words, the pressing plate 4 can be fixed by the nut 1, and the pressing plate 4 is fixed between the nut 1 and the manhole ring 5, thereby indirectly fixing the manhole cover 9.

In order to achieve stability of contact between the nut 1 and the pressure plate 4, as shown in fig. 1 to 2, a washer 2 is provided between the nut 1 and the pressure plate 4.

In order to improve the matching stability of the manhole cover 9 and the manhole ring 5, the upper end of the manhole cover 9 is fixedly connected with a hoop 7 matched with the inner wall of the manhole ring 5, and the accurate and stable matching of the manhole cover 9 and the manhole ring 5 can be realized through the matching of the hoop 7 and the inner wall of the manhole ring 5.

As shown in fig. 2, a gasket 8 is provided between the manhole ring 5 and the manhole cover 9, so that the sealing performance can be greatly enhanced.

In this embodiment, the number of the adjustable bolts 3, the pressure plate 4, the nuts 1, the washers 2, the hinge seats 10 and other structures is a pair, and the adjustable bolts, the pressure plate, the nuts 1, the washers 2, the hinge seats 10 and other structures are all of the same specification and are also commonly used in the prior art.

During the use, as shown in fig. 1-3, for the schematic diagram of the structure after fixing, when needing to dismantle, can dismantle nut 1, then take off clamp plate 4, can stir adjustable bolt 3, adjust adjustable bolt 3's direction, can all move adjustable bolt 3 to the direction that is close to manhole cover 9 axis, when dismantling the removal, be difficult for promptly colliding with manhole ring 5, the process of installation is the same, move adjustable bolt 3 all to the direction that is close to manhole cover 9 axis, also be difficult for colliding with manhole ring 5 at the in-process of installation.

According to the technical scheme, the utility model has the following beneficial effects:

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel manhole structure, includes manhole circle and manhole cover, its characterized in that still includes:

the hinge base is fixedly connected to the manhole cover;

the adjustable bolt is rotatably connected to the hinge seat;

the pressing plate is arranged at the upper end of the manhole ring, a first through hole matched with the adjustable bolt is formed in the pressing plate, and the adjustable bolt penetrates through the first through hole;

the nut is in threaded connection with the adjustable bolt, and the pressing plate is located between the nut and the manhole ring.

2. A novel manhole structure as claimed in claim 1, wherein a reinforcing rib is fixedly connected between the hinge base and the manhole cover.

3. The novel manhole structure as claimed in claim 1, wherein a rotating end is provided at one end of the adjustable bolt, a second through hole is provided on the rotating end, a pair of third through holes matching with the second through hole are provided on the hinge base, and a pin shaft is inserted between the second through hole and the third through hole.

4. A novel manhole structure as claimed in claim 3, wherein one end of the pin shaft is provided with a pin socket, and the pin socket is provided with a split pin.

5. A novel manhole structure as claimed in claim 1, wherein a washer is provided between the nut and the pressure plate.

6. A novel manhole structure as claimed in claim 1, wherein the upper end of the manhole cover is fixedly connected with a hoop matching with the inner wall of the manhole ring.

7. A novel manhole structure according to any one of claims 1 to 6, wherein a gasket is provided between the manhole ring and the manhole cover.