CN215521944U

CN215521944U - Pull formula manhole device

Info

Publication number: CN215521944U
Application number: CN202121785781.1U
Authority: CN
Inventors: 杨丽娜
Original assignee: PowerChina Kunming Engineering Corp Ltd
Current assignee: PowerChina Kunming Engineering Corp Ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-14
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to a drawing type manhole device, which comprises a drawing device; the drawing device is arranged on the side parts of the flange and the flange cover and is fixedly connected with the wall of the pressure container; the drawing device comprises a bracket, a linear guide rail and a sliding plate; the bracket is fixedly connected with the flange; the linear guide rail is at least one and is fixedly arranged on the bracket; the linear guide rail is provided with a plurality of sliding blocks which are connected with the linear guide rail in a sliding way; the sliding plate is fixedly connected to the linear guide rail through a sliding block; the slide plate is connected with the flange cover through a connecting mechanism. The utility model has unique opening mode and labor-saving and convenient operation; when the container is closed, the sealing is complete, and the pressure inside the container can resist larger pressure; the utility model can set a complete flow guide plug by innovating the opening mode of the manhole, and optimize the water flow condition of the manhole position; the utility model is used on the periphery of the pressure container, and can meet the use requirements of industrial pressure containers in various aspects.

Description

Pull formula manhole device

Technical Field

The utility model relates to the technical field of manhole device structures, in particular to the technical field of a drawing type manhole device structure.

Background

In order to facilitate the installation, overhaul and safety inspection of the interior of the pressure vessel, the pressure vessel is provided with a manhole according to the requirements of relevant regulatory standards. The manhole mainly comprises a neck pipe, a flange and a flange cover. The manhole forms are commonly used as a rotary cover, a horizontal hanging cover and a vertical hanging cover. The cover plate of the revolving cover manhole is turned over by a rotary bearing, and the horizontal hanging cover and the vertical hanging cover manhole are turned over by a hanging arm. In order to reduce head loss and optimize water flow conditions at the manhole position, a diversion plug is required to be arranged at the lower part of the flange cover, a steel plate with a contour similar to that of the cut pipe shell part is arranged at the lower part of the plug, and the internal and external water pressures of the diversion plug are balanced. The guide plug and the flange cover are welded into a whole, a conventional rotary cover, a horizontal hanging cover and a vertical hanging cover manhole are adopted, and the guide plug and the neck pipe are difficult to avoid collision when the manhole is opened. Therefore, the drawing type manhole is designed, the flow guide plug is convenient to arrange, and labor and convenience are saved in operation.

Disclosure of Invention

The utility model aims to solve the problem that the opening mode of the conventional manhole is determined to be difficult to arrange a complete flow guide plug, and innovates the opening mode of the manhole, so that the operation of the manhole is more labor-saving and convenient.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a drawing type manhole device comprises a neck pipe 1, a flange 3 and a flange cover 5; a neck pipe 1 in the manhole device is fixedly arranged on the periphery of the pressure container, namely one end of the neck pipe 1 is fixedly connected with the wall of the pressure container, and the other end of the neck pipe is fixedly connected with a flange 3; a flange cover 5 is arranged on the outer side of the flange 3, and the flange 3 and the flange cover 5 are fixedly connected through the combination of a plurality of bolts 7 and nuts 8; a handle 6 is fixedly arranged on the flange cover 5; the manhole device also comprises a drawing device; the drawing device is arranged on the side parts of the flange 3 and the flange cover 5 and is fixedly connected with the wall of the pressure vessel; the drawing device comprises a bracket 19, a linear guide rail 13 and a sliding plate 12; the bracket 19 is fixedly connected with the flange 3; the number of the linear guide rails 13 is at least one, and the linear guide rails are fixedly arranged on the bracket 19; the linear guide rail 13 is provided with a plurality of sliding blocks 20, and the sliding blocks 20 are connected with the linear guide rail 13 in a sliding manner; the sliding plate 12 is fixedly connected to the linear guide rail 13 through a sliding block 20; the slide plate 12 is connected to the flange cover 5 by a connecting mechanism.

Further, the travel limiting blocks 14 are arranged at the two ends of the linear guide rail 13 in a matched manner; the slide plate 12 moves between the limit distances of the travel limit blocks 14.

Further, the bracket 19 of the present invention includes a bracket base 19.1 and a bracket support rod 19.2; one side of the bracket base 19.1 is arranged on the flange 3 and is fixedly connected with the flange 3; the number of the support rods 19.2 is two, and the two support rods are respectively arranged on the other side of the support base 19.1.

Further, the sliding plate 12 is arranged in an L shape or a groove shape, and the sliding plate 12 and the sliding block 20 are respectively provided with screw holes 24 which are matched with each other; the slide plate 12 and the slider 20 are fixed by screws 25 provided in the screw holes 24.

Furthermore, a first shaft seat 21 is arranged on one side of the flange cover 5 close to the bracket 19; a second rotating shaft seat 22 is arranged on one side of the sliding plate 12; the flange cover 5 and the slide plate 12 are coupled by the rotary shaft 15 provided in the first and second

rotary shaft housings

21 and 22.

Further, a flow guide plug pipe 23 is fixedly arranged on the inner side of the flange cover 5; a guide plate 10 is fixedly arranged at the tail end of the guide plug pipe 23).

Further, a washer 9 is arranged in the combination of the bolt 7 and the nut 8; a water seal 4 is arranged between the flange 3 and the flange cover 5.

Furthermore, a reinforcing plate 2 is fixedly arranged at the joint of the wall of the pressure vessel and the neck pipe 1.

Furthermore, the first shaft seat 21 is fixedly provided with a rotation angle limiting block 18 to prevent the flange cover 5 from being opened by too large angle.

Furthermore, the pipe wall of the diversion plug pipe 23 is provided with a plurality of bypass holes 16.

According to the utility model, under the action of the drawing device, when the manhole is opened, the flange cover horizontally slides by using the linear guide rail and moves to the outside of the neck pipe, and the flange cover turns over by the rotating shaft to open the manhole. The procedure is reversed when the manhole is closed. Manhole neck pipe level sets up, welds in pressure vessel surface, for avoiding trompil to take over the influence of back to the container in the aspect of stress distribution and intensity, combines the equal area reinforcement method principle to set up the stiffening plate and pass through fillet weld and plug welding welded fastening in pressure vessel surface. The flange is fixed on the neck pipe, a water seal is arranged between the flange and the flange cover, namely the flange and the flange cover are connected through bolts and gaskets to realize the sealing effect. A support 19 is arranged beside the flange for installing a sliding rail, one end of the support 19 is welded on the pressure container, and the other end of the support stretches out of the surface of the flange so as to install the sliding rail. And a flow guide plug is arranged at the lower part of the flange cover. The lower part of the plug is provided with a steel plate with the outline similar to that of the cut pipe shell part, the steel plate is welded on the flange cover through the pipe wall of the diversion plug, the pipe wall of the diversion plug is cylindrical, and a by-pass hole is arranged for balancing the water pressure inside and outside the diversion plug. The water flow condition of the manhole position can be optimized through the arrangement of the flow guide plug, the streaming of water flow at the manhole position is reduced, and the head loss is reduced. The blind flange links to each other with the slide through the pivot, and the slide slides and cup joints on linear guide, moves the blind flange along the guide rail, and the friction is less, sets up the stroke stopper simultaneously for the gliding scope of restriction. The manhole cover can slide along the guide rail through the drawing device, and can rotate along the rotating shaft when the flange cover completely slides out. By using the drawing device, a complete flow guide plug can be arranged, and the manhole operation is more convenient and labor-saving.

Compare with current manhole opening mode, the beneficial effect of pull formula manhole:

1. the manhole device has unique opening mode and labor-saving and convenient operation; when the container is closed, the sealing is complete, and the pressure inside the container can resist larger pressure;

2. the utility model can set a complete flow guide plug by innovating the opening mode of the manhole, and optimize the water flow condition of the manhole position;

3. the utility model is used on the periphery of the pressure container, and can meet the use requirements of industrial pressure containers in various aspects.

The utility model is further explained below with reference to the drawings and the detailed description.

Drawings

FIG. 1 is a schematic view of the drawout manhole position of the present invention;

FIG. 2 is a perspective view of the drawing manhole of the present invention;

FIG. 3 is a perspective view of the drawing manhole of the present invention;

FIG. 4 is a top view of the pull-out manhole of the present invention;

FIG. 5 is a sectional view taken along line I-I in FIG. 4;

fig. 6 is a schematic perspective view of a drawing type manhole flange according to the present invention;

fig. 7 is a schematic perspective view of a drawing type manhole flange cover according to the present invention.

In the figure: 1-neck tube; 2-a stiffening plate; 3-a flange; 4-water sealing; 5-a flange cover; 6-a handle; 7-bolt; 8-a nut; 9-a gasket; 10-a baffle; 11-the wall of the diversion plug; 12-a slide plate; 13-a linear guide rail; 14-a stroke stop block; 15-a rotating shaft; 16-a bypass orifice; 17-pressure vessel wall; 18-a rotational angle stop; 19-a scaffold; 19.1-a holder base; 19.2-support bar; 20-a slide block; 21-a first shaft seat; 22-a second spindle base; 23-a flow guide plug pipe; 24-screw holes; 25-screw.

Detailed Description

The drawing manhole is further described in detail with reference to the accompanying drawings and the detailed description. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.

rotary shaft housings

21 and 22.

As shown in fig. 1, the drawing type manhole is horizontally provided on the pressure vessel.

As shown in fig. 2 to 7, one end of a neck 1 is welded to a vessel surface 17 to form a manhole, and a reinforcing plate 2 is fixed to the pressure vessel surface 17 by fillet welding and plug welding. The flange 3 is welded at the other end of the neck pipe 1, a support 19 is arranged beside the flange for installing the linear guide rail 13, one end of the support 19 is welded on the flange 3 (the pipe wall 17 of the pressure container can also be arranged), and the other end of the support extends out to facilitate the installation of the linear guide rail 13. A water seal 4 is arranged between the flange 3 and the flange cover 5, namely the flange 3 and the flange cover 5 are connected through a bolt 7, a nut 8 and a gasket 9 to realize the sealing effect. The lower part of the flange cover 5 is provided with a flow guide plug which comprises a flow guide plate 10 and a flow guide plug pipe wall 11. The lower part of the plug is provided with a steel plate with the outline similar to that of the cut pipe shell part as a guide plate 10, the guide plate is welded on the flange cover 5 through a guide plug pipe wall 11, the guide plug pipe wall 11 is cylindrical, and a bypass hole 16 is arranged for balancing the internal and external water pressure of the guide plug. The flange cover 5 is provided with a handle 6. The manhole drawing device comprises a sliding plate 12, a linear guide rail 13, a stroke limiting block 14 and a rotating shaft 15. The linear guide 13 is arranged on the surface perpendicular to the pipe wall 17 of the pressure vessel by being arranged on the flange 3. The flange cover 5 is connected with the sliding plate 12 through the rotating shaft 15, the sliding plate 12 is sleeved on the linear guide rail 13 in a sliding mode, the flange cover 5 is moved along the linear guide rail 13, friction is small, and the flange cover is light and labor-saving. And a stroke stopper 14 is provided in order to limit the range of the sliding of the slide plate 12 on the linear guide 13.

When the drawing manhole needs to be opened, all the connecting nuts 8 on the flange cover 5 only need to be unscrewed, the handle 6 is held by a hand to enable the flange cover 5 to slide along the linear guide rail 13, when the flange cover 5 completely slides out, the guide plate 10 of the flow guide plug cannot collide the neck pipe 1, and the manhole can be opened by rotating the flange cover 5 along the rotating shaft 15 by pulling the handle 6. When the drawing manhole is closed, the flange cover 5 is rotated along the rotating shaft 15 by the aid of the handle 6, when the flange cover 5 rotates to the limit of the rotation angle limiting block 18, the flange cover 5 slides to the flange 3 along the linear sliding rail 13, the flange cover 5 and the flange 3 are connected together through the connecting bolt 7, and the connecting bolt is screwed down.

The standard parts used by the utility model can be purchased from the market, the special-shaped parts can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, welding and the like in the prior art, and the machines and the parts adopt the conventional models and the conventional connection modes in the prior art, and the details are not repeated.

The above description is only a specific embodiment of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A drawing type manhole device comprises a neck pipe (1), a flange (3) and a flange cover (5); a neck pipe (1) in the manhole device is fixedly arranged on the periphery of the pressure container, namely one end of the neck pipe (1) is fixedly connected with the wall of the pressure container, and the other end of the neck pipe is fixedly connected with a flange (3); a flange cover (5) is arranged on the outer side of the flange (3), and the flange (3) and the flange cover (5) are fixedly connected through the combination of a plurality of bolts (7) and nuts (8); a handle (6) is fixedly arranged on the flange cover (5); characterized in that the manhole device also comprises a drawing device; the drawing device is arranged on the side parts of the flange (3) and the flange cover (5) and is fixedly connected with the wall of the pressure container; the drawing device comprises a bracket (19), a linear guide rail (13) and a sliding plate (12); the bracket (19) is fixedly connected with the flange (3); the linear guide rail (13) is at least one and is fixedly arranged on the bracket (19); the linear guide rail (13) is provided with a plurality of sliding blocks (20), and the sliding blocks (20) are connected with the linear guide rail (13) in a sliding manner; the sliding plate (12) is fixedly connected to the linear guide rail (13) through a sliding block (20); the sliding plate (12) is connected with the flange cover (5) through a connecting mechanism.

2. The drawing type manhole device according to claim 1, wherein a stroke limiting block (14) is fittingly provided at both ends of the linear guide (13); the sliding plate (12) moves between the limit distances of the stroke limit block (14).

3. A pull type manhole device according to claim 1, wherein the support (19) comprises a support base (19.1) and a support rod (19.2); one side of the bracket base (19.1) is arranged on the flange (3) and is fixedly connected with the flange (3); the two support supporting rods (19.2) are respectively arranged at the other side of the support base (19.1).

4. The drawing type manhole device according to claim 1, wherein the sliding plate (12) is provided with an L-shaped or a groove-shaped structure, and the sliding plate (12) and the sliding block (20) are respectively provided with screw holes (24) which are matched with each other; the sliding plate (12) and the sliding block (20) are fixed through screws (25) arranged in screw holes (24).

5. The drawing type manhole device according to claim 1, wherein a first shaft seat (21) is provided at one side of the flange cover (5) near the bracket (19); a second rotating shaft seat (22) is arranged on one side of the sliding plate (12); the flange cover (5) and the sliding plate (12) are connected through a rotating shaft (15) arranged in a first rotating shaft seat (21) and a second rotating shaft seat (22).

6. A pull-out manhole device according to claim 1, wherein a choke plug pipe (23) is fixedly arranged inside the flange cover (5); a guide plate (10) is fixedly arranged at the tail end of the guide plug pipe (23).

7. A pull-out manhole device according to claim 1, wherein a washer (9) is provided in the combination of the bolt (7) and the nut (8); a water seal (4) is arranged between the flange (3) and the flange cover (5).

8. A pull-out manhole device according to claim 1, wherein a reinforcing plate (2) is fixedly arranged at the joint of the pressure vessel wall and the neck pipe (1).

9. A drawing manhole device according to claim 5, wherein a rotation angle stopper (18) is fixedly provided on the first shaft seat (21).

10. A pull-out manhole device according to claim 6, wherein bypass holes (16) are provided in the wall of the choke tube (23).