Sanitary portable manhole

Abstract

A sanitary portable manhole relates to the technical field of container accessories and comprises a door body plate, the periphery of the door body plate is folded downwards, flat steel is welded on the inner side of the door body plate, a sealing ring is clamped between the folded edge of the door body plate and the flat steel, fixing plates are fixedly connected to two sides of one end of the door body plate, and the portions, longer than the door body plate, of the fixing plates are suspended. The middle of the fixing plate is hinged to the container, a long hole is formed in the longer portion of the fixing plate, a balance weight bolt capable of sliding in the long hole is arranged in the long hole, and the balance weight bolt is fastened on the long hole through a nut. The manhole solves the problems that an existing manhole is heavy, inconvenient to open and prone to pinching and hurting people, has the advantages of being simple in structure, convenient to open, low in cost and good in sealing performance, and is suitable for being used in large containers with many requirements for feeding or stirring or coil pipe maintenance and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of container fittings, and particularly relates to a hygienic and portable manhole. Background Art

[0002] The current specifications of the manholes on the tank bodies are considered from two aspects: convenient observation and easy access for people to enter the container for maintenance. However, some containers have requirements for feeding, stirring, coil pipe maintenance, etc., and need to enlarge the manhole. There is no corresponding manhole product on the market. At the same time, the large-sized manhole also brings safety hazards such as heavy and inconvenient opening and easy pinching. Content of the Utility Model

[0003] In order to overcome the deficiencies in the prior art, a portable manhole device with a simple structure, convenient opening, low cost and good sealing performance is provided.

[0004] The technical solution provided by the utility model is: a hygienic and portable manhole, including a door body plate. The four sides of the door body plate are folded downwards. A flat steel is welded on the inner side of the door body plate. A sealing ring is clamped between the folded edge of the door body plate and the flat steel. After the door body plate is closed, the opening of the container abuts against the sealing ring. On both sides of one end of the door body plate, fixing plates are fixedly connected. The part of the fixing plate that extends out of the door body plate is suspended. The middle part of the fixing plate is hinged to the container, so that the door body plate can rotate relative to the container. A long hole is opened in the extended part of the fixing plate. A counterweight bolt that can slide in the long hole is arranged in the long hole. The counterweight bolt is fastened in the long hole through a nut. By adjusting the fastening position of the counterweight bolt, the opening weight of the door body plate is balanced, so that the door body plate is more convenient to open.

[0005] A further technical solution is: a switch support plate is fixedly connected to the container. A limit pin is inserted on the switch support plate. A limit hole is processed on the fixing plate. After the limit pin is inserted into the limit hole, the rotation of the fixing plate is restricted, thereby limiting the position of the door body plate in the open and closed states.

[0006] A further technical solution is: a locking device for locking the door body plate in the closed state is arranged on the door body plate.

[0007] A further technical solution is: a round steel handle is fixedly connected to one end of the door body plate away from the fixing plate.

[0008] A further technical solution is: a counterweight body is detachably installed in the center of the counterweight bolt.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: The present utility model is applicable to large containers with feeding requirements or multiple requirements such as stirring and coil maintenance. The opening force of the present utility model can be adjusted, and it is convenient to open; it has good sealing performance and is applicable to container products with high hygiene requirements such as food and medicine. After the present utility model is opened, it can be limited and supported by a limit pin to avoid the situation that the door body panel accidentally closes and injures people. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 is a side view of the overall structure of the present utility model.

[0011] Figure 2 is a top view of the overall structure of the present utility model.

[0012] In the figure: 1, round steel handle; 2, sealing ring; 3, flat steel; 4, door body panel; 5, counterweight bolt; 6, nut; 7, fixed plate; 8, long hole; 9, hinge mounting plate; 10, switch support plate; 11, limit pin; 12, limit hole; 13, container; 14, locking device; 15, counterweight body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0014] Refer to the attached Figure 1-2 , a hygienic and lightweight manhole disclosed by the present utility model, the structure of which includes a door body panel 4. The door body panel 4 is square, the four sides of the door body panel 4 are folded downwards, a flat steel 3 is welded inside the door body panel 4, and a sealing ring 2 is clamped between the folded edge of the door body panel 4 and the flat steel 3. After the door body panel 4 is closed, the opening of the container 13 abuts against the sealing ring 2. A locking device 14 for locking the closed state of the door body panel 4 is arranged on the door body panel 4. The locking device 14 includes a locking bolt and a locking nut. The tightening of the locking bolt in the locking nut realizes the locking of the door body panel 4 on the container 13. It should be noted that as long as the locking of the door body panel 4 on the container 13 can be realized, it belongs to the locking device 14 described in this embodiment. The sealing performance of this embodiment is good and it is applicable to container 13 products with high hygiene requirements such as food and medicine.

[0015] On both sides of one end of the door body plate 4, fixing plates 7 are fixedly connected. The parts of the fixing plates 7 that extend beyond the door body plate 4 are in a suspended state. A hinge mounting plate 9 is welded on the container 13. The middle parts of the fixing plates 7 are hinged on the hinge mounting plate 9, so that the door body plate 4 can be opened at a certain angle relative to the container 13. Long holes 8 are provided in the extending parts of the fixing plates 7. Counterweight bolts 5 that can slide in the long holes 8 are arranged in the long holes 8. Nuts 6 are screwed at both ends of the counterweight bolts 5. The counterweight bolts 5 are fastened to the long holes 8 through the nuts 6. By adjusting the fastening positions of the counterweight bolts 5 on the long holes 8, the opening weight of the door body plate 4 is balanced, and it is more convenient to open the door body plate 4 in this embodiment.

[0016] A switch support plate 10 is fixedly connected to the container 13. A limit pin 11 is inserted and arranged on the switch support plate 10. A limit hole 12 is processed on the fixing plate 7. After the limit pin 11 is inserted into the limit hole 12, the rotation of the fixing plate 7 is restricted, thereby limiting the position of the door body plate 4 in the open and closed states and avoiding the situation that the door body plate 4 accidentally closes and pinches people.

[0017] A round steel handle 1 is fixedly connected to one end of the door body plate 4 far from the fixing plate 7.

[0018] In order to flexibly set the counterweight, a counterweight body 15 is detachably installed in the center of the counterweight bolt 5. The opening and closing force of the door body plate 4 is adjusted by increasing or decreasing the weight of the counterweight body 15.

Claims

1. A sanitary lightweight manhole, characterized in that: The invention comprises a door body panel (4), wherein the door body panel (4) is folded downward on all sides, a flat steel (3) is welded on the inner side of the door body panel (4), a sealing ring (2) is clamped between the folded edge of the door body panel (4) and the flat steel (3), a fixing plate (7) is fixedly connected to both sides of one end of the door body panel (4), a portion of the fixing plate (7) extending out of the door body panel (4) is suspended in the air, a middle portion of the fixing plate (7) is hinged to a container (13), a long hole (8) is provided in the extending portion of the fixing plate (7), a counterweight bolt (5) which can slide in the long hole (8) is arranged in the long hole (8), and the counterweight bolt (5) is fastened to the long hole (8) by a nut (6).

2. A sanitary portable manhole according to claim 1, characterized in that: A switch support plate (10) is fixedly connected to the container (13), a limit pin (11) is inserted into the switch support plate (10), a limit hole (12) is processed on the fixed plate (7), and the limit pin (11) and the limit hole (12) are inserted into each other to limit the rotation of the fixed plate (7), thereby limiting the position of the door plate (4).

3. A sanitary portable manhole according to claim 1, characterized in that: The door panel (4) is provided with a locking device (14) for locking the door panel (4) in a closed state.

4. A sanitary portable manhole according to claim 1, characterized in that: A round steel handle (1) is fixedly connected to one end of the door plate (4) away from the fixed plate (7).

5. The sanitary portable manhole according to claim 1, characterized in that: A counterweight body (15) is detachably mounted in the center of the counterweight bolt (5).

Images