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CN-121999564-A - Safety protection device for limited space operation

CN121999564ACN 121999564 ACN121999564 ACN 121999564ACN-121999564-A

Abstract

The invention discloses a safety protection device for limited space operation, which belongs to the technical field of safety protection and comprises a structural pipe, a detection mechanism and a warning mechanism, wherein the structural pipe, the detection mechanism and the warning mechanism are arranged on a structural wall, the structural pipe is fixedly arranged on the structural wall, the middle part of the structural pipe forms a manhole position for entering the interior of the structural wall, an installation seat is fixedly arranged on the structural pipe, a sinking circular groove for being clamped with a bin door is formed in the installation seat, a sound box electrically connected with a remote control system is further arranged on the installation seat, a detection mechanism for detecting whether personnel enter when the bin door is opened is arranged in the installation seat, the warning mechanism for warning the outside after the personnel enter is arranged on the installation seat, and the detection mechanism comprises a transverse grating detection assembly, a longitudinal grating detection assembly, a self-detection assembly and a self-detection zero detection assembly. Through the mode, personnel are prevented from entering by mistake, outside personnel are prevented from closing the bin gate by mistake under the condition that the personnel exist, and the safety of the operation in a limited space is ensured.

Inventors

  • MA JIFEI
  • WANG HONGJUN
  • GAO XINDE
  • FU WENCHENG
  • LI LINLIN
  • ZHANG XIAOYU
  • CAO SHAODONG

Assignees

  • 陕西秦风气体股份有限公司
  • 章丘秦风气体有限公司

Dates

Publication Date
20260508
Application Date
20251231

Claims (8)

  1. 1. The utility model provides a restricted space operation safety arrangement, includes structure pipe (2), detection mechanism (3) and warning mechanism (4) of installing on structure wall (1), its characterized in that: The structure pipe (2) is fixedly arranged on the structure wall (1), the middle part of the structure pipe (2) forms a manhole position for entering the inside of the structure wall (1), the structure pipe (2) is fixedly provided with a mounting seat (21), the mounting seat (21) is provided with a sinking circular groove (22) for being clamped with a bin door, and the mounting seat (21) is also provided with a sound box electrically connected with a remote control system; A detection mechanism (3) for detecting whether personnel enter when the bin gate is opened is arranged in the mounting seat (21), and a warning mechanism (4) for warning the outside after the personnel enter is arranged on the mounting seat (21); the detection mechanism (3) comprises a transverse grating detection assembly (31), a longitudinal grating detection assembly (32), a self-checking assembly (33) and a self-checking zero detection assembly (34), wherein a plurality of groups of transverse grating detection assemblies (31) are uniformly arranged on the inner side of the installation seat (21) at equal intervals, a plurality of groups of longitudinal grating detection assemblies (32) are uniformly arranged on the inner side of the installation seat (21) at equal intervals, the transverse grating detection assembly (31) and the longitudinal grating detection assembly (32) are mutually perpendicular, a self-checking assembly (33) for detecting whether the transverse grating detection assembly (31) and the longitudinal grating detection assembly (32) normally operate is arranged in the installation seat (21), and the self-checking zero detection assembly (34) for assisting in calibrating the self-checking assembly (33) is arranged on the self-checking assembly (33).
  2. 2. The limited space operation safety protection device according to claim 1, wherein the warning mechanism (4) comprises a warning component (41) and a locking component (42), the warning component (41) is installed on the installation seat (21), and the locking component (42) for temporarily locking the warning component (41) is installed on the warning component (41).
  3. 3. The confined space work safety protection device according to claim 2, wherein the warning mechanism (4) further comprises a verification assembly (43), and the verification assembly (43) capable of identifying the position of the worker is mounted on the clothes of the worker entering the confined space.
  4. 4. A limited space operation safety arrangement according to claim 3, characterized in that the transverse grating detection assembly (31) comprises a laser generator (312) and a laser receiver (313), the mounting seat (21) is symmetrically provided with mounting through grooves (311), the laser generator (312) is fixedly arranged in one mounting through groove (311), and the laser receiver (313) for receiving laser emitted by the laser generator (312) is fixedly arranged in the other mounting through groove (311).
  5. 5. The limited space operation safety protection device according to claim 4, wherein the self-checking assembly (33) comprises a gear ring (334), a baffle plate (336) and a driving structure, an annular self-checking groove (332) is formed in the mounting seat (21), an annular rotating groove (333) is formed in the mounting seat (21), the annular self-checking groove (332) is communicated with the rotating groove (333), the gear ring (334) is rotatably mounted in the rotating groove (333), the baffle plate (336) for blocking the inner end of the mounting through groove (311) is fixedly mounted on the gear ring (334), and the driving structure for driving the gear ring (334) to rotate is mounted on the mounting seat (21).
  6. 6. The safety protection device for limited space operation according to claim 5, wherein the driving structure comprises a mounting box (331), a gear (335) and a servo motor (337), the mounting box (331) is fixedly arranged on the side edge of the mounting seat (21), the servo motor (337) is fixedly arranged in the mounting box (331), the gear (335) is fixedly arranged at the output end of the servo motor (337), and the gear (335) is in meshed connection with the gear ring (334).
  7. 7. The limited space operation safety protection device according to claim 6, wherein the self-checking zero detection assembly (34) comprises a detection box (341), contact reeds (342) and copper sheets (343), the detection box (341) is fixedly arranged on the side edge of the annular self-checking groove (332), a circuit breaking signal generating device is arranged in the detection box (341), one contact reed (342) is fixedly arranged at the end part of the circuit breaking signal generating device, one copper sheet (343) is fixedly arranged on the side edge of the baffle (336), and the contact reeds (342) are in fit sliding connection with the copper sheets (343).
  8. 8. The safety protection device for limited space operation according to claim 7, wherein the warning component (41) comprises a mounting ring (411), a warning clamping plate (412) and a plug-in rod (413), the warning clamping plate (412) is fixedly installed on the mounting ring (411), the plug-in rod (413) is symmetrically and fixedly installed on the lower side of the mounting ring (411), the plug-in rod (414) is symmetrically arranged on the mounting seat (21), and the plug-in rod (413) is plugged into the plug-in rod (414).

Description

Safety protection device for limited space operation Technical Field The invention relates to the technical field of safety protection, in particular to a safety protection device for limited space operation. Background At present, many inflammable and explosive chemical materials are used in the production process of industries such as chemical industry, industry trade and the like, and meanwhile, maintenance operation is necessary in the operation of a production device, and most of the maintenance operation relates to the operation of entering a limited space. Because of various flammable and explosive materials used in production, the situations of toxic and harmful gas, oxygen deficiency and the like exist in limited space places such as equipment, pipelines, ditches and the like, in recent years, serious safety accidents such as operation accidents of entering limited space, blind rescue casualties and the like occur continuously and repeatedly. The method comprises the steps that a safety management technician identifies the existing area, facility or place, identifies the limited space position, installs a manhole alarm at an entrance and exit of each position, and if the limited space is normally cleaned and replaced to be qualified, after a special operation ticket is processed, a special operation guardian or a full-time safety manager opens an electronic lock on site, if normal operation is not processed according to a normal flow, someone enters the limited space area privately or mistakenly, an indoor alarm device is controlled to send out an alarm sound, and the full-time safety manager corrects and processes in time after receiving information to prevent safety accidents entering the limited space. For example, chinese patent CN118736764B discloses a limited space access monitoring and alarming device, which is skillfully matched with a setting component and a triggering component, so that a pedal can be effectively lowered when a person steps on the device, thereby driving the triggering component to work, and accurately monitoring tension changes through a tension sensor to judge the access condition of the person. However, the equipment can only detect whether personnel or equipment passes, can not detect whether personnel, equipment and sundries pass, can not detect the identity of the entering personnel, and can not judge whether the entering personnel is permitted to enter the personnel for the current operation. Based on the above, the present invention designs a safety protection device for limited space operation to solve the above problems. Disclosure of Invention In view of the above-mentioned shortcomings of the prior art, the present invention provides a safety protection device for limited space operation. In order to achieve the above purpose, the invention is realized by the following technical scheme: a safety protection device for limited space operation comprises a structural pipe, a detection mechanism and a warning mechanism, wherein the structural pipe, the detection mechanism and the warning mechanism are arranged on a structural wall; The structure pipe is fixedly arranged on the structure wall, and the middle part of the structure pipe forms a manhole position for entering the inside of the structure wall; the structure pipe is fixedly provided with a mounting seat, and the mounting seat is provided with a sinking round groove for being clamped with the bin gate; The mounting seat is internally provided with a detection mechanism for detecting whether personnel enter when the bin door is opened or not; The detection mechanism comprises a transverse grating detection assembly, a longitudinal grating detection assembly, a self-detection assembly and a self-detection zero detection assembly, wherein a plurality of groups of transverse grating detection assemblies are uniformly arranged on the inner side of a mounting seat at equal intervals, a plurality of groups of longitudinal grating detection assemblies are uniformly arranged on the inner side of the mounting seat at equal intervals, the transverse grating detection assembly and the longitudinal grating detection assembly are mutually perpendicular, the self-detection assembly for detecting whether the transverse grating detection assembly and the longitudinal grating detection assembly normally run or not is arranged in the mounting seat, and the self-detection zero detection assembly for assisting in calibrating the self-detection assembly is arranged on the self-detection assembly. Still further, warning mechanism includes warning subassembly and locking subassembly, and warning subassembly installs on the mount pad, installs the locking subassembly that is used for temporarily locking warning subassembly on the warning subassembly. Furthermore, the warning mechanism further comprises a verification component, and the verification component capable of identifying the position of the worker is arranged on the clot