CN108253440A - A kind of flue manhole door - Google Patents

Abstract

A kind of flue manhole door, including pedestal, capping, door-plate and spiral handle；Door-plate forward direction covers pedestal, and passes through capping and compress, and capping center is equipped with threaded hole；Spiral handle includes bar portion, and one end of the rod is silk end, and the other end is fixed with holding rod, and silk end connect with threaded hole and against door-plate；The pedestal side is equipped with articulated section, and opposite side is equipped with fixed part；Capping one end is hinged with articulated section, and the other end is detachable connection with fixed part；The door-plate is equipped with sealing material with being equipped with seal groove at base into contact in seal groove.Flue manhole door provided by the invention, it is easy to operate by fixed part and the detachable connection of capping instead of the fixed mode of multiple bolts；By the sealing material being equipped in seal groove, the sealing effect of flue manhole door is improved.

Description

a chimney manhole

technical field

The invention relates to the technical field of horizontal flue pipes, in particular to a flue manhole door structure.

Background technique

On a large flue, in order to facilitate the operator to work in and out of the flue, it is necessary to set a manhole door on the flue. Existing manhole door mainly is made up of two parts of door panel and base, and door panel and base are connected by the hinge that is arranged on all around and bolt.

With this structure, multiple bolts need to be loosened sequentially every time the manhole door is opened, which is cumbersome to operate and inconvenient to switch on and off; moreover, there is a gap between the door panel and the base, and the sealing performance is poor, and the smoke is easy to leak when passing through the manhole door.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a flue manhole door which is convenient to open and close and has good sealing effect.

The technical solution adopted by the present invention to solve the technical problems is: to provide a flue manhole door, including a base, a cover, a door panel and a screw handle; There is a threaded hole in the center; the spiral handle includes a rod, one end of the rod is a wire end, the other end is fixed with a handle, the wire end is connected with the threaded hole and leans against the door panel; one side of the base is provided with a hinge, the other There is a fixed part on the side; one end of the cover is hinged to the hinge part, and the other end is detachably connected to the fixed part; the contact between the door panel and the base is provided with a sealing groove, and a sealing material is arranged in the sealing groove.

The fixing part is a door lug, and the end of the cover away from the hinge part is provided with a through hole coincident with the door lug, and the cover and the door lug are fixed by a bolt passing through the through hole.

Further, reinforcing ribs are provided under the door panel.

Further, further, the sealing material is fixed in the sealing groove.

Further, the grip rod of the spiral handle is perpendicular to the rod.

Further, both the base and the door panel are circular, the rod is covered with a collar, and the collar is pierced with a plurality of pressure rods, and the end of the pressure rod away from the collar is against the upper side of the sealing groove.

Beneficial effects of the present invention:

The flue manhole door provided by the present invention replaces the fixing method of multiple bolts through the detachable connection between the fixing part and the cover, and is easy to operate; the sealing effect of the flue manhole door is improved through the sealing material provided in the sealing groove .

Description of drawings

The partial perspective schematic diagram of the flue manhole door that Fig. 1—embodiment 1 provides;

Fig. 2—the schematic diagram of A-A section among Fig. 1;

Fig. 3—the enlarged schematic diagram of B place in Fig. 2;

The schematic diagram of the flue manhole door that Fig. 4—embodiment 3 provides;

Figure 5—Schematic diagram of the C-C section in Figure 4.

Explanation of reference signs

1 base, 2 cover, 3 door panel, 4 screw handle, 4.1 rod, 4.2 wire end, 4.3 grip rod, 5 threaded hole, 6 hinge, 7 reinforcing rib, 8 door ear, 9 latch, 10 sealing groove , 11 rubber layers, 12 collars, 13 pressure bars.

Detailed ways

Example 1

Referring to Figures 1 to 3, a flue manhole door provided by Embodiment 1 includes a base 1, a cover 2, a door panel 3 and a screw handle 4; Tight, there is a threaded hole 5 in the center of the cover 2; the screw handle 4 includes a rod part 4.1, one end of the rod part 4.1 is a wire end 4.2, and the other end is fixed with a grip rod 4.3, the wire end 4.2 is connected with the threaded hole 5 and leans against the door panel 3 One side of the base 1 is provided with a hinged part 6, and the other side is provided with a fixed part; one end of the cover 2 is hinged with the hinged part 6, and the other end is detachably connected with the fixed part; the door panel 3 is connected with the base 1 A sealing groove 10 is arranged at the contact point, and a sealing material is arranged in the sealing groove 10.

The fixed part is the ear 8, and the end of the cover 2 away from the hinge 6 is provided with a through hole overlapping with the ear 8, and the cover 2 and the ear 8 are fixed by a bolt 9 passing through the through hole.

A reinforcing rib 7 is provided under the cover 2 .

The sealing material is a rubber layer 11 .

The rubber pad 11 is fixed in the sealing groove 10 .

The grip rod 4.3 of the spiral handle 4 is perpendicular to the rod part 4.1.

The working principle of this embodiment:

Overlap the end of the cover 2 away from the hinge 6 with the through hole of the door ear 8, and fix the pin 9 through the through hole, then screw the thread end 4.2 of the screw handle 4 into the threaded hole 5, and the thread end 4.2 and the threaded hole 5 fixed, and in the process of screwing in, the wire end 4.2 moves toward the door panel 3 and presses against the door panel 3 to apply pressure to the door panel 3, and the door panel 3 is pressed against the base 1 to realize the closing of the manhole door; the above-mentioned process reverse operation is The manhole door can be opened.

The bottom of the door panel 3 is provided with reinforcing ribs 7, which can increase the strength of the door panel 3.

The door panel 3 is in contact with the base 1 through the sealing groove 10. The sealing groove 10 has a guiding function when the door panel 3 is closed. At the same time, a sealing material is provided in the sealing groove 10 to improve the sealing effect of the manhole door. Preferably, the rubber layer 11 is selected as the sealing material, which not only has a good sealing effect, but also has a buffering effect on the sealing groove 10 and the base 1 due to the elasticity of the rubber layer, preventing the sealing groove 10 and the base 1 from being deformed under pressure.

The rubber pad 11 is fixed (such as by conventional methods such as adhesion) in the sealing groove 10. When the door panel 3 is opened, the rubber layer 11 will not fall off and can be used repeatedly without replacement or reinstallation, reducing the number of steps.

The grip bar 4.3 of the screw handle 4 is perpendicular to the bar part 4.1, and the wire end 4.2 is screwed into or out of the threaded hole 5, which can be realized by rotating the vertical bar part 4.1, which is labor-saving and easy to operate.

Example 2

Referring to Figures 4 and 5, Embodiment 2 further includes the following features on the basis of Embodiment 1:

Both the base 1 and the door panel 3 are circular; the rod 4.1 is covered with a collar 12, and the collar 12 is pierced with a number of pressure rods 13, and the end of the pressure rod 13 away from the collar 12 is against the sealing groove 10 on the upper side.

The working principle of this embodiment:

In the process of screwing the wire end 4.2 of the screw handle 4 into the threaded hole 5, the lower side of the grip rod 4.3 touches the collar 12 and exerts pressure on the collar 12, and the pressure acts on the upper side of the sealing groove 10 through the pressure rod 13, The sealing groove 10 and the base 1 are further compressed, and the sealing effect is further improved on the basis of Example 1.

Claims (8)

1. A flue manhole door, comprising a base, a cover, a door panel and a screw handle; the door panel covers the base forwardly and is pressed tightly by the cover, and the center of the cover is provided with a threaded hole; the screw handle includes a rod, One end of the rod is a wire end, and the other end is fixed with a grip rod, and the wire end is connected to the threaded hole and leans against the door panel; it is characterized in that a hinge portion is provided on one side of the base, and a fixed portion is provided on the other side; the cover One end is hinged with the hinged part, and the other end is detachably connected with the fixed part; the contact between the door panel and the base is provided with a sealing groove, and a sealing material is arranged in the sealing groove. 2. The flue manhole door according to claim 1, wherein the sealing material is fixed in the sealing groove. 3. The flue manhole door according to claim 2, wherein the sealing material is a rubber layer. 4. The flue manhole door according to claim 2, wherein the sealing material is adhered in the sealing groove. 5. The flue manhole door according to any one of claims 1-4, characterized in that, a reinforcing rib is provided under the door panel. 6. The flue manhole door according to claim 5, wherein the fixing part is a door lug, and the end of the cover away from the hinge part is provided with a coincident through hole with the door lug, and the cover and the door lug pass through Through-hole pins are secured. 7. The flue manhole door according to any one of claims 6, characterized in that, the holding rod of the spiral handle is perpendicular to the rod. 8. The flue manhole door as claimed in claim 7, wherein the base and the door panel are both circular, the rod is covered with a collar, and the collar is pierced with a number of pressure rods, the pressure rods are far away from the One end of the collar abuts against the upper side of the sealing groove.