Constricted space in-out ventilation pipe and cable isolation protection device

Abstract

The utility model provides a restricted space access breather pipe and cable isolation protection device, which comprises a fixed protection mechanism and a movable protection mechanism, the fixed protection mechanism comprises a group of fixed side protection plates and upper and lower fixed frames between the fixed side protection plates, the end face of each fixed side protection plate is provided with a plurality of fixed side semicircular holes, the lower fixed frame is provided with a locking bolt, and the fixed side semicircular holes are communicated with the locking bolt. A fixed jackscrew is arranged on the fixed side protection plate; the movable protection mechanism comprises a set of movable side protection plates hinged to the upper fixing frame, a plurality of movable side semicircular holes are formed in the end faces of the movable side protection plates, a protection plate is connected between the two movable side protection plates, an insertion groove is formed in the protection plate, and the locking plug pin can be assembled in the insertion groove. The device prevents operators from electric shock accidents during access and operation in a limited space through isolation, is convenient to mount and dismount, improves the construction efficiency, has the advantages of reasonable structural design, reusability, low cost and the like, and can protect the cables from being worn due to the fact that insulating materials are arranged at the cable holes.

Description

Technical Field

[0001] The utility model relates to the technical field of maintenance protection, in particular to an isolation and protection device for ventilation pipes and cables entering and exiting a confined space. Background Art

[0002] Confined space operations are frequent in hazardous chemical companies, often characterized by poor ventilation, complex internal structures, and insufficient lighting. Temporary power supplies are frequently used during operations within confined spaces. Furthermore, for worker safety, confined space operations must ensure that entrances and exits remain unobstructed. Wires, cables, and vent pipes entering the confined space must be protected or insulated at the entrance to avoid using the same entrance and exit as personnel.

[0003] However, in reality, the original structure of the confined space entrances and exits and the limitations of on-site working conditions mean that cables, ventilation pipes and staff can only use the same entrance and exit. Moreover, if the ventilation pipe (long-tube blower pipe) and personnel use different entrances and exits, emergency personnel need to remove the long-tube air supply mask to escape, which poses a risk of poisoning.

[0004] Therefore, there is an urgent need for a confined space cable and ventilation pipe entry and exit isolation protection device to isolate and prevent workers from entering and exiting and working in the confined space to solve the above problems. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a confined space entry and exit ventilation pipe and cable isolation protection device, which prevents electric shock accidents of workers when entering and exiting the confined space and working through isolation, facilitates emergency escape of workers, protects the health and safety of workers, and is easy to install and disassemble, thereby improving construction efficiency.

[0006] The utility model provides a confined space inlet and outlet ventilation pipe and cable isolation protection device, including a fixed protection mechanism and a movable protection mechanism, wherein:

[0007] The fixed protection mechanism includes a set of fixed side guard plates, the end faces of which are provided with a plurality of fixed side semicircular holes, the upper ends of the two fixed side guard plates are fixedly connected to an upper fixing frame, the lower ends of the two fixed side guard plates are fixedly connected to a lower fixing frame, the lower fixing frame is provided with a locking pin, and at least one fixed side guard plate is provided with a fixed top screw;

[0008] The movable protective mechanism includes a group of movable side guard plates, and the end faces of the movable side guard plates are provided with several movable side semicircular holes. The end faces of the movable side guard plates are arranged opposite to the end faces of the fixed side guard plates, and the movable side semicircular holes correspond one-to-one with the circular holes of the fixed side plates to form several through holes. The movable side guard plates are hinged to the two ends of the upper fixed frame, and the protective plates are connected between the two movable side guard plates. The protective plates are provided with slots, and the locking pins can be fitted in the slots.

[0009] Preferably, both the end surface of the movable side guard plate and the end surface of the fixed side guard plate are provided with rubber sheaths.

[0010] Preferably, the through holes include ventilation holes and cable holes.

[0011] Preferably, the centers of the through hole including the vent hole and the cable hole are located on the same straight line.

[0012] Preferably, there is one vent hole and four cable holes.

[0013] Preferably, there are at least two fixed top screws, which are respectively arranged at the upper and lower ends of the fixed side guard plate.

[0014] Working Principle of the Utility Model: When using the confined space entry and exit vent pipe and cable isolation and protection device, first place the device on one side of the manhole and secure it in the manhole with the top screw. Then, place the cable and vent pipe in the cable hole and vent pipe hole with rubber sheath respectively. Close the movable protection mechanism and insert the locking pin into the slot to lock it before operation can be carried out. After the operation is completed, open the movable protection mechanism, remove the cable and vent pipe, and loosen the top screw to remove the device.

[0015] Beneficial Effects of the Utility Model: The confined space entry and exit ventilation duct and cable isolation and protection device of the utility model has the following advantages: 1. Safe Isolation: Isolation prevents electric shock accidents to workers while entering or exiting a confined space or working, facilitating emergency escape and protecting their health and safety. 2. Convenient Installation: Easy installation and removal improves construction efficiency. 3. Reusability: The rational structural design allows for reusability, reducing construction costs. 4. Cable Protection: Insulation material is provided at the cable hole to protect the cable from wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a diagram of the utility model of the confined space inlet and outlet ventilation pipe and cable isolation protection device in the open state;

[0017] Figure 2 This is a diagram of the closed state of the confined space inlet and outlet ventilation pipe and cable isolation and protection device of the present invention;

[0018] Figure 3 This is a left side view of the utility model of the confined space inlet and outlet ventilation pipe and cable isolation and protection device;

[0019] Figure 4 This is a diagram of the usage status of the confined space inlet and outlet ventilation pipe and cable isolation and protection device of the utility model.

[0020] In the figure: fixed protective mechanism 1, fixed side guard plate 11, fixed side semicircular hole 12, upper fixing frame 13, lower fixing frame 14, locking latch 15, fixed top screw 16; movable protective mechanism 2, movable side guard plate 21, movable side semicircular hole 22, protective plate 23, slot 24; rubber sheath 3; ventilation pipe hole 4; cable hole 5; manhole 6. DETAILED DESCRIPTION

[0021] In order to make the technical solution of the present invention easier to understand, the technical solution of the present invention is now clearly and completely described in conjunction with the accompanying drawings using specific embodiments.

[0022] Example 1:

[0023] like Figures 1 to 4 As shown, the confined space inlet and outlet ventilation pipe and cable isolation protection device of this embodiment includes a fixed protection mechanism 1 and a movable protection mechanism 2, wherein:

[0024] The fixed protection mechanism 1 includes a set of fixed side guard plates 11, each of which has a plurality of fixed side semicircular holes 12 on its end surface. An upper fixing frame 13 is fixedly connected between the upper ends of the two fixed side guard plates 11, and a lower fixing frame 14 is fixedly connected between the lower ends of the two fixed side guard plates 11. The lower fixing frame 14 is provided with a locking pin 15, and at least one fixed side guard plate 11 is provided with a fixed top screw 16.

[0025] The movable protective mechanism 2 includes a group of movable side guard plates 21, and the end faces of the movable side guard plates 21 are provided with several movable side semicircular holes 22. The end faces of the movable side guard plates 21 are arranged opposite to the end faces of the fixed side guard plates 11, and the movable side semicircular holes 22 correspond to the circular holes of the fixed side plates one by one to form several through holes. The movable side guard plates 21 are hinged to the two ends of the upper fixed frame 13, and a protective plate 23 is connected between the two movable side guard plates 21. A slot 24 is provided on the protective plate 23, and the locking pin 15 can be fitted in the slot 24.

[0026] Example 2:

[0027] like Figures 1 to 4 As shown, the confined space inlet and outlet ventilation pipe and cable isolation protection device of this embodiment includes a fixed protection mechanism 1 and a movable protection mechanism 2, wherein:

[0028] The fixed protection mechanism 1 includes a group of fixed side guard plates 11, and the end faces of the fixed side guard plates 11 are provided with several fixed side semicircular holes 12. The upper ends of the two fixed side guard plates 11 are fixedly connected to an upper fixing frame 13, and the lower ends of the two fixed side guard plates 11 are fixedly connected to a lower fixing frame 14. The lower fixing frame 14 is provided with a locking pin 15, and at least one fixed side guard plate 11 is provided with a fixed top screw 16; there are at least two fixed top screws 16, and the fixed top screws 16 are respectively provided at the upper and lower ends of the fixed side guard plate 11.

[0029] The movable protective mechanism 2 includes a group of movable side guard plates 21, and the end faces of the movable side guard plates 21 are provided with several movable side semicircular holes 22. The end faces of the movable side guard plates 21 are arranged opposite to the end faces of the fixed side guard plates 11, and the movable side semicircular holes 22 correspond to the circular holes of the fixed side plates one by one to form several through holes. The movable side guard plates 21 are hinged to the two ends of the upper fixed frame 13, and a protective plate 23 is connected between the two movable side guard plates 21. A slot 24 is provided on the protective plate 23, and the locking pin 15 can be fitted in the slot 24.

[0030] The end faces of the movable side guard plate 21 and the fixed side guard plate 11 are both provided with rubber sheaths 3; the through holes include a vent hole 4 and a cable hole 5; the centers of the vent hole 4 and the cable hole 5 are located on the same straight line; there is one vent hole 4 and four cable holes 5.

[0031] It should be noted that the embodiments described herein are only some embodiments of the present invention, not all implementations of the present invention. The embodiments are merely illustrative and serve only to provide a more intuitive and clear way to understand the content of the present invention, rather than to limit the technical solutions described in the present invention. Without departing from the concept of the present invention, all other implementation methods that can be thought of by ordinary technicians in this field without creative work, as well as other simple replacements and various variations of the technical solutions of the present invention, are within the scope of protection of the present invention.

Claims

1. A confined space inlet and outlet ventilation pipe and cable isolation and protection device, characterized in that: It comprises a fixed protection mechanism (1) and a movable protection mechanism (2), wherein: The fixed protection mechanism (1) comprises a set of fixed side guard plates (11), the end surfaces of the fixed side guard plates (11) are provided with a plurality of fixed side semicircular holes (12), the upper ends of the two fixed side guard plates (11) are fixedly connected to an upper fixing frame (13), the lower ends of the two fixed side guard plates (11) are fixedly connected to a lower fixing frame (14), a locking latch (15) is provided on the lower fixing frame (14), and at least one fixed side guard plate (11) is provided with a fixed top screw (16); The movable protection mechanism (2) includes a group of movable side guard plates (21), the end faces of the movable side guard plates (21) are provided with a plurality of movable side semicircular holes (22), the end faces of the movable side guard plates (21) are arranged opposite to the end faces of the fixed side guard plates (11), and the movable side semicircular holes (22) correspond to the fixed side plate circular holes in a one-to-one manner to form a plurality of through holes, the movable side guard plates (21) are hinged to the two ends of the upper fixed frame (13), a protection plate (23) is connected between the two movable side guard plates (21), a slot (24) is provided on the protection plate (23), and a locking pin (15) can be fitted in the slot (24).

2. The confined space inlet and outlet ventilation pipe and cable isolation and protection device according to claim 1, characterized in that: The end surface of the movable side guard plate (21) and the end surface of the fixed side guard plate (11) are both provided with a rubber sheath (3).

3. The confined space inlet and outlet ventilation pipe and cable isolation and protection device according to claim 1, characterized in that: The through hole comprises a vent hole (4) and a cable hole (5).

4. The confined space inlet and outlet ventilation pipe and cable isolation and protection device according to claim 3, characterized in that: The through hole includes a vent hole (4) and a cable hole (5), the centers of which are located on the same straight line.

5. The confined space inlet and outlet ventilation pipe and cable isolation and protection device according to claim 3, characterized in that: There is one vent hole (4) and four cable holes (5).

6. The confined space inlet and outlet ventilation pipe and cable isolation and protection device according to claim 1, characterized in that: There are at least two fixed top screws (16), which are respectively arranged at the upper and lower ends of the fixed side guard plate (11).

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