CN2294999Y - quick opening manhole cover - Google Patents

Abstract

The quick-opening manhole cover relates to a sealing device for a container, which is composed of a cover body, a cylinder section and a fastening mechanism. There is a backing plate between the cover plates, the backing plate is welded with the lower end of the sleeve, and welded with the reverse arched cover plate, the sleeve is placed in the center hole of the circular flat cover plate, and welded with the reinforcement plate, the upper part of the hinge shaft has an external thread and a rotary block Internal thread connection, more than 3 chute blocks are evenly distributed around the swivel block, one end of the pin shaft is placed in the chute on the chute block, the other end is fixedly connected with one end of the transmission rod, and the transmission rod is connected to the upper end of the support lug plate. The lower end of the support ear plate is fixedly connected with the cover body, the lower end of the joint bolt is movably connected with the support ear seat, and the support ear seat is fixedly connected with the cylinder joint.

Description

quick opening manhole cover

The utility model relates to a sealing device for a container.

The manhole cover of the existing container is generally tightened with six swing bolts and six nuts respectively to seal the opening of the container. ,Very inconvenient. The operation is time-consuming and laborious.

The purpose of the utility model is to provide a technical solution for quick opening of the manhole cover. The manhole cover is convenient to close and open, saves time and effort in operation, and the force on the sealing ring is even and the sealing effect is good.

The technical scheme of the utility model is: the quick-opening manhole cover is composed of a cover body, a cylinder section and a fastening mechanism, the lower section of the hinge shaft of the fastening mechanism is placed in the sleeve, the lower end of the hinge shaft has a pan head, and the pan head and the anti-arch There is a backing plate between the cover plates, the backing plate is welded with the lower end of the sleeve, and welded with the reverse arched cover plate, the hinge shaft can rotate in the sleeve, the sleeve is placed in the center hole of the circular flat cover plate, and welded with the reinforcement plate , the upper part of the hinge shaft is connected with the external thread and the internal thread of the rotary block, and there are more than 3 sliders evenly distributed around the rotary block. One end of the pin shaft is placed in the chute on the slider, and the other end is fixed to the end of the transmission rod. Connection, the transmission rod is movably connected with the upper end of the support ear plate, the lower end of the support ear plate is fixedly connected with the cover body, the lower end of the swing bolt is movably connected with the support ear seat, and the support ear seat is fixedly connected with the cylinder joint.

The cover body is welded by a flat cover plate, an anti-arch cover plate and a reinforcing plate. There is a flange around the cover body, and a sealing ring is provided on the contact surface between the flange and the upper end surface of the barrel joint. The reinforcing plates are arranged radially between the flat cover plate and the anti-arch cover plate, and are welded with the anti-arch cover plate.

The main advantages of the utility model are: it is more convenient to open or close the manhole cover, the operation is time-saving and labor-saving, the transmission rod and the sealing ring are evenly stressed, the cover body adopts the reverse arch form, and the cover plate can be reduced under the rated pressure state of the tank. Thickness, weight reduction, lowering the overall height of the manhole cover, the structure is more compact.

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Figure 1: Front view of quick opening manhole cover.

Figure 2: Top view of Figure 1.

In the figure: 1. Hinge shaft 2. Handle 3. Support lug seat 4. Swivel bolt 5. Hex nut 6. Transmission rod 7. Slide block 8. Flat cover plate 9. Pin shaft 9A. Support lug plate 10. Flat Washer 11, cotter pin 12, pin sleeve 13, connection block 14, support ear plate 15, swivel block 16, pin shaft 17, flat washer 18, cotter pin 19, pin shaft 20, flat washer 21, cotter pin 22, pin Shaft 23, flat washer 24, cotter pin 25, sleeve 26, backing plate 27, seal ring 28, reinforcement plate 29, anti-arch cover plate 30, barrel joint 31, sealing ring 32, flange 33, chute 34, plate head

Example:

The quick-opening manhole cover (see Figure 1 and 2) is mainly composed of three parts: the manhole cover body, the barrel joint and the fastening transmission mechanism. The flat cover plate 8 of the manhole cover, the anti-arch cover plate 29, the reinforcement plate 28 and the flange 32 are welded together. There is a sealing ring 31 on the flange 32, and the handle 2 and the supporting ear plate are connected to the manhole cover. 9A, the supporting ear plate 9A is flexibly connected with the connecting block 13 with the pin shaft 9, the flat washer 10, the cotter pin 11, the pin shaft sleeve 12, and the connecting block 13 is fixedly connected with the barrel joint 30; the fastening transmission mechanism mainly includes the hinge shaft 1, The rotary block 15, the transmission rod 6, and the joint bolt 4 are composed. The lower part of the hinge shaft 1 is placed in the sleeve 25 and can rotate in the sleeve. There is a pan head 34 at the lower end of the hinge shaft. Backing plate 26 is arranged, and backing plate 26 is welded with anti-arch cover plate 29 and sleeve 25 lower ends respectively, and sleeve 25 is placed in the central hole of circular flat cover 8, and is welded with reinforcing plate 28, and the internal thread of screw block 15 is connected with The external thread on the hinge shaft 1 top is connected, and the outer circumference of the rotary block is evenly distributed with 6 chute blocks 7, each chute block 7 has a chute 33, and one end of the bearing pin 16 is placed in the chute 33, and this end is equipped with The other end of flat washer 17, cotter pin 18, pin shaft 16 is fixedly connected with one end of transmission rod 6, and the upper end of transmission rod 6 and support lug plate 14 is flexibly connected with pin shaft 19, flat washer 20, cotter pin 21, and support lug plate 14 It is fixedly connected with the manhole cover body; the lower end of the swing bolt 4 is flexibly connected with the support ear seat 3 with the pin shaft 22, the flat washer 23, the cotter pin 24, and the support ear seat is fixedly connected with the barrel joint 30.

Working principle: When the hinge shaft 1 is rotated, since the hinge shaft cannot move up and down, it can only rotate in the sleeve 25. The rotary block 15 moves up and down with the rotation of the hinge shaft. When the rotary block moves upward, the 6 connected with it A chute block 7 simultaneously drives 6 transmission rods 6 one ends to lift upwards through the pin shaft 16, and the other ends of the 6 transmission rods 6 with the pin shaft 19 as the fulcrum move down simultaneously, and are loosened with the 6 swing bolts, allowing the 6 swing bolts to move downward. When the joint bolt falls down, the manhole cover can be opened. When the rotary block moves downward, one end of the transmission rod is driven to move downward, and the other end of the transmission rod is lifted up, and is tightly fastened with the joint bolt, and the manhole cover is pressed tightly to cover it. .

Claims (3)

1. The quick-opening manhole cover is composed of a cover body, a cylinder section and a fastening mechanism. Its characteristics are: the lower part of the hinge shaft of the fastening mechanism is placed in the sleeve, and the lower end of the hinge shaft has a pan head, and the pan head and the anti-arch cover There is a backing plate between the plates, the backing plate is welded with the lower end of the sleeve, and welded with the anti-arch cover plate, the sleeve is placed in the center hole of the circular flat cover plate, and welded with the reinforcement plate, the upper part of the hinge shaft has an external thread and a rotary block The internal thread connection of the rotary block is evenly distributed with more than 3 chute blocks, one end of the pin shaft is placed in the chute on the chute block, the other end is fixedly connected with one end of the transmission rod, and the transmission rod and the supporting ear plate The upper end is movably connected, the lower end of the support ear plate is fixedly connected with the cover body, the lower end of the swing bolt is movably connected with the support ear seat, and the support ear seat is fixedly connected with the cylinder joint. 2. The quick-opening manhole cover according to claim 1, characterized in that: the cover body is welded by a flat cover plate, an anti-arch cover plate and a reinforcement plate, there is a flange around the cover body, and the flange and the cylinder joint There is a sealing ring on the contacting surface of the upper end surface. 3. The quick-opening manhole cover according to claim 2, characterized in that: the reinforcing plate is arranged radially between the flat cover plate and the reverse arch cover plate, and welded with the reverse arch cover plate.

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