Double-air-source long-pipe respirator applied to narrow space

Abstract

According to the double-air-source long-pipe respirator applied to the narrow and small space, moving assemblies used for driving a fixing assembly to clamp and fix an oxygen supply assembly I are arranged above a base, and an adjusting assembly used for driving the two moving assemblies to move in the opposite directions is arranged above the base; a driving assembly used for driving the adjusting assembly to rotate is arranged above the adjusting assembly. And a support used for supporting the second oxygen supply assembly is arranged on the front side of the second oxygen supply assembly. The adjusting assembly can be driven through the hand wheel to drive the moving assembly to clamp and fix the first oxygen bottle through the fixing assembly, so that the first oxygen bottle is prevented from shaking; when the first connecting pipe is damaged, an alarm lamp flickers to remind an operator that the external oxygen supply device leaks, then the first connecting pipe is closed through a switch above the three-way valve, and meanwhile, the second connecting pipe can be communicated with the third connecting pipe, so that oxygen can be conveniently conveyed to the mask, and the operator can rapidly leave the interior of the oil tank.

Description

Technical Field

[0001] This invention relates to the field of long-tube respirator technology, and in particular to a dual-air-source long-tube respirator for use in confined spaces. Background Technology

[0002] During oil tank construction operations, the situation in confined spaces is complex. In narrow or complex working environments, dual-air-source long-tube respirators are used to meet the needs of workers working in confined spaces. However, when using existing dual-air-source long-tube respirators, there have been incidents of workers dying due to the oxygen supply lines of the long-tube respirators becoming entangled and unable to supply oxygen. Using long-tube respirators to enter confined spaces poses a significant risk. For example, a mobile long-tube respirator with Chinese publication number CN201911361833.X includes a sliding long-tube mechanism slidably installed within an annular sliding track between the outer and inner annular bodies. The sliding long-tube mechanism includes a sliding plate, a winding column, a ventilation long tube, a telescopic protrusion, and an elastic compression member. A sliding plate is installed at each end of the winding column. The ventilation long tube is wound around the four sides of the winding column. The sliding plate has an arc-shaped structure. A spring-loaded groove is provided on the outer side of each sliding plate. An elastic compression member and a telescopic protrusion are installed in each spring-loaded groove. The inner end of the elastic compression member is fixed within the spring-loaded groove, and the outer end of the elastic compression member is connected to the inner end of the telescopic protrusion. The outer end of the telescopic protrusion extends to the outside of the spring-loaded groove. The sliding plates at both ends of the winding column are slidably engaged with the engagement grooves of the outer and inner annular bodies via the telescopic protrusions. One end of the ventilation long tube is movably connected to an oxygen cylinder on the base frame.

[0003] However, when using a sliding long tube mechanism to keep workers in confined spaces, the pipes of the dual-gas-source long tube may be squeezed or cut due to the complex conditions in the confined space, resulting in no gas supply or gas leakage, which restricts the user's range of activities and mobility. In addition, the lack of a device to fix the oxygen cylinder makes it easy for the oxygen cylinder to tip over when moving. Summary of the Invention

[0004] To address the issues raised in the background art, such as the possibility of compression or cutting of the dual-gas-source long pipes in confined spaces during work, leading to gas supply disruptions or leaks and restricting the user's range of motion and mobility, and the lack of a device to secure the oxygen cylinders, which easily causes them to tip over during movement, this invention provides the following technical solution:

[0005] A dual-source long-tube respirator for use in confined spaces includes a base, an external oxygen supply device for providing oxygen is provided at the top of the base, a fixing device for clamping and fixing the external oxygen supply device is fixedly installed at the top of the base, and an auxiliary oxygen supply device for delivering oxygen into the mask is provided on the left side of the base.

[0006] The external oxygen supply device includes an oxygen supply component 1 located at the top of the base, and there are several oxygen supply components 1. The top of the oxygen supply component 1 is provided with a connecting component for supplying oxygen into the mask.

[0007] The fixing device includes a fixing component disposed above the base for clamping and fixing the oxygen supply component 1. Above the base is a moving component for driving the fixing component to clamp and fix the oxygen supply component 1. There are two moving components, and the two moving components move in opposite directions. Above the base is an adjusting component for driving the two moving components to move in opposite directions. Above the adjusting component is a driving component for driving the adjusting component to rotate.

[0008] The auxiliary oxygen supply device includes an oxygen supply component two for supplying oxygen into the mask, and a support component for supporting the oxygen supply component two is provided on the front side of the oxygen supply component two.

[0009] Furthermore, a support column for placing the fixing device is fixedly installed at the top of the base.

[0010] Furthermore, the oxygen supply assembly includes oxygen cylinders disposed on the left and right sides of the support column. The top of each oxygen cylinder is provided with a control switch for controlling the oxygen discharge from the cylinder. The top of each oxygen cylinder is also provided with a diversion pipe for centrally discharging the oxygen from the four oxygen cylinders.

[0011] Furthermore, the connecting assembly includes a connecting pipe 1 disposed at the top of the diversion pipe, and a storage tray for storing the connecting pipe 1 is disposed at the top of the base, and support frames for supporting the storage tray are fixedly installed at the left and right ends of the storage tray.

[0012] Furthermore, the drive assembly includes a rotating shaft disposed within the support column for rotation, a handwheel for driving the rotating shaft to rotate is fixedly mounted at the top end of the rotating shaft, and a bevel gear for driving the adjustment assembly to rotate is fixedly mounted at the bottom end of the rotating shaft.

[0013] Furthermore, the adjusting assembly includes a fixed column fixedly installed inside the support column, and a threaded rod is provided inside the fixed column for driving two moving components to move in opposite directions. A second bevel gear is provided in the middle of the shaft of the threaded rod for meshing with a first bevel gear.

[0014] Furthermore, the movable component includes a movable plate disposed within the fixed column for threaded connection with the threaded rod. A connecting rod for driving the fixed component to clamp and fix the oxygen supply component is fixedly installed at one end of the movable plate away from the second bevel gear, and there are several connecting rods.

[0015] Furthermore, the fixing component includes clamping blocks fixedly installed at both ends of the support column, and a fixing block for cooperating with the clamping blocks to fix the oxygen supply component is fixedly installed at the end of the connecting rod away from the moving plate.

[0016] Furthermore, the support assembly includes a support plate for supporting the second oxygen supply assembly. The front end of the support plate is provided with a strap for securing the support plate to the arm. An alarm light for alarm purposes is fixedly installed at the top end of the support plate. The rear end of the support plate is provided with a retractable strap for securing the second oxygen supply assembly.

[0017] Furthermore, the oxygen supply component two includes an oxygen cylinder two mounted on a support plate, a connecting pipe two fixedly mounted on the top of the oxygen cylinder two, a three-way valve for connecting to the connecting pipe one at the end of the connecting pipe two away from the oxygen cylinder two, and a connecting pipe three for connecting to the mask at the front side of the three-way valve.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] By setting up an external oxygen supply device, a fixing device, and an auxiliary oxygen supply device, when it is necessary to clamp and fix oxygen cylinder one, the handwheel can be used to drive the rotating shaft to rotate. Under the meshing connection between bevel gear one and bevel gear two, the adjusting component can be driven to move the moving component to clamp and fix the fixing component to the oxygen cylinder one, so as to prevent the oxygen cylinder one from shaking. When the connecting pipe one is damaged, the alarm light flashes to remind the operator that the external oxygen supply device is leaking. Then, the switch above the three-way valve can be used to close the connecting pipe one. At the same time, the connecting pipe two and the connecting pipe three can be connected to facilitate the delivery of oxygen from oxygen cylinder two to the connecting pipe three and to the mask, so that the operator can quickly leave the inside of the tank. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the support column of the present invention;

[0022] Figure 3 This is a schematic diagram of the external oxygen supply device of the present invention;

[0023] Figure 4 This is a schematic diagram of the fixing device structure of the present invention;

[0024] Figure 5 This is a front sectional view of the support column of the present invention;

[0025] Figure 6 This is a schematic diagram of the auxiliary oxygen supply device of the present invention.

[0026] The following is a list of component names represented by the reference numerals in the attached figures:

[0027] 100 - Base, 101 - Support column;

[0028] 200-External oxygen supply device, 210-Oxygen supply component one, 211-Oxygen cylinder one, 212-Control switch, 213-Diverter pipe, 220-Connecting component, 221-Connecting pipe one, 222-Storage tray, 223-Support frame;

[0029] 300-Fixing device, 310-Drive assembly, 311-Handwheel, 312-Rotating shaft, 313-Bevel gear one, 320-Adjusting assembly, 321-Fixing column, 322-Threaded rod, 323-Bevel gear two, 330-Fixing assembly, 331-Fixing block, 332-Clamping block, 340-Moving assembly, 341-Moving plate, 342-Connecting rod;

[0030] 400-Auxiliary oxygen supply device, 410-Support assembly, 411-Support plate, 412-Alarm light, 413-Telescopic strap one, 414-Telescopic strap two, 420-Oxygen supply assembly two, 421-Oxygen cylinder two, 422-Connecting pipe two, 423-Three-way valve, 424-Connecting pipe three. Detailed Implementation

[0031] The preferred embodiments of the present invention are described in detail below, and a clear and complete description is provided in conjunction with the accompanying drawings.

[0032] Please see Figures 1-6 The present invention provides a dual-air-source long-tube respirator for use in confined spaces.

[0033] The device includes a base 100, an external oxygen supply device 200 for providing oxygen is provided at the top of the base 100, a fixing device 300 for clamping and fixing the external oxygen supply device 200 is fixedly installed at the top of the base 100, and an auxiliary oxygen supply device 400 for delivering oxygen into the mask is provided on the left side of the base 100.

[0034] A support column 101 for placing the fixing device 300 is fixedly installed at the top of the base 100.

[0035] The external oxygen supply device 200 includes an oxygen supply component 210 disposed at the top of the base 100, and there are several oxygen supply components 210. The top of the oxygen supply component 210 is provided with a connecting component 220 for supplying oxygen into the mask.

[0036] The oxygen supply assembly 210 includes oxygen cylinders 211 disposed on the left and right sides of the support column 101. The top of each oxygen cylinder 211 is equipped with a control switch 212 for controlling the oxygen discharge from the cylinder. The top of each oxygen cylinder 211 is also equipped with a diversion pipe 213 for centrally discharging the oxygen from the four oxygen cylinders 211. This facilitates the delivery of oxygen from the cylinders 211 to the connecting assembly 220 via the control switch 212, thereby enhancing the operator's ability to work inside the oil tank.

[0037] The connecting assembly 220 includes a connecting pipe 221 disposed at the top of the diversion pipe 213. The top of the base 100 is provided with a storage tray 222 for storing the connecting pipe 221. Support frames 223 are provided at the left and right ends of the storage tray 222 for supporting the storage tray 222. The connection between the support frame 223 and the storage tray 222 is a movable connection, so that the connecting pipe 221 can be stored through the storage tray 222.

[0038] The fixing device 300 includes a fixing component 330 disposed above the base 100 for clamping and fixing the oxygen supply component 210. Above the base 100, there is a moving component 340 for driving the fixing component 330 to clamp and fix the oxygen supply component 210. There are two moving components 340, and the two moving components 340 move in opposite directions. Above the base 100, there is an adjusting component 320 for driving the two moving components 340 to move in opposite directions. Above the adjusting component 320, there is a driving component 310 for driving the adjusting component 320 to rotate.

[0039] The drive assembly 310 includes a rotating shaft 312 disposed within the support column 101 for rotation, and the rotating shaft 312 is connected to the column body of the support column 101 via a bearing to facilitate the rotation of the rotating shaft 312; a handwheel 311 for driving the rotating shaft 312 to rotate is fixedly installed at the top end of the rotating shaft 312, and a bevel gear 313 for driving the adjustment assembly 320 to rotate is fixedly installed at the bottom end of the rotating shaft 312; thus, when it is necessary to clamp and fix the oxygen cylinder 211, the rotating shaft 312 can be driven to rotate by the handwheel 311, and under the meshing connection between the bevel gear 313 and the bevel gear 323, the adjustment assembly 320 can be driven to drive the moving assembly 340 to clamp and fix the fixing assembly 330 on the oxygen cylinder 211 to prevent the oxygen cylinder 211 from shaking.

[0040] The adjusting assembly 320 includes a fixed column 321 fixedly installed in the support column 101. The fixed column 321 is provided with a threaded rod 322 for driving two moving assemblies 340 to move in opposite directions. The left and right ends of the threaded rod 322 are connected to the column body of the fixed column 321 through bearings to facilitate the rotation of the threaded rod 322. At the same time, the rod body of the threaded rod 322 is provided with two symmetrical threads, and the threads of the two threads are turned in opposite directions. Thus, when the threaded rod 322 rotates, the two moving assemblies 340 can move in opposite directions along the two threads on the threaded rod 322, which can drive the two fixed assemblies 330 to clamp and fix the oxygen cylinder 211. The middle part of the shaft of the threaded rod 322 is provided with a bevel gear 323 for meshing with the bevel gear 313.

[0041] The movable component 340 includes a movable plate 341 disposed within the fixed column 321 for threaded connection with the threaded rod 322, and the shape and size of the movable plate 341 are the same as the shape and size of the column cavity of the fixed column 321; a connecting rod 342 for driving the fixed component 330 to clamp and fix the oxygen supply component 210 is fixedly installed at one end of the movable plate 341 away from the bevel gear 323, and there are four connecting rods 342, which are arranged in a circumferential array on the movable plate 341.

[0042] The fixing component 330 includes clamping blocks 332 fixedly installed at the left and right ends of the support column 101, and a fixing block 331 for cooperating with the clamping blocks 332 to fix the oxygen supply component 210 at the end of the connecting rod 342 away from the moving plate 341.

[0043] The auxiliary oxygen supply device 400 includes an oxygen supply component 2 420 for supplying oxygen into the mask, and a support component 410 for supporting the oxygen supply component 2 420 is provided on the front side of the oxygen supply component 2 420.

[0044] The support assembly 410 includes a support plate 411 for supporting the second oxygen supply assembly 420. The front end of the support plate 411 is provided with a retractable strap 413 for securing the support plate 411 to the operator's arm. There are two retractable straps 413, symmetrically distributed at the front end of the support plate 411, ensuring that the auxiliary oxygen supply device 400 does not interfere with the operator's work inside the oil tank and allowing the operator to move freely within the tank. An alarm light 412 is fixedly installed at the top of the support plate 411 and is connected to the second oxygen supply assembly 420. The flashing of the alarm light 412 alerts the operator that a leak has occurred in the external oxygen supply device 200, allowing the second oxygen supply assembly 420 to immediately continue supplying oxygen to the mask, enabling the operator to quickly leave the oil tank and prevent harm to their safety and health. The rear end of the support plate 411 is provided with a retractable strap 414 for securing the second oxygen supply assembly 420.

[0045] The oxygen supply assembly 420 includes two oxygen cylinders 421 mounted on a support plate 411, which are secured together by a telescopic strap 414. A connecting pipe 422 is fixedly mounted on the top of each oxygen cylinder 421. A three-way valve 423 for connecting to a connecting pipe 221 is located at the end of the connecting pipe 422 furthest from the oxygen cylinder 421. A connecting pipe 424 for connecting to a face mask is located on the front side of the three-way valve 423. When pipe 221 is damaged, the alarm light 412 flashes to alert the operator that the external oxygen supply device 200 is leaking. Then, the switch above the three-way valve 423 is used to close pipe 221. At the same time, pipes 422 and 424 can be connected to allow oxygen from cylinder 2 421 to be transported along pipes 422 to 424 and to the face mask, so that the operator can quickly leave the tank and prevent damage to the operator's safety and health.

[0046] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this invention. Furthermore, any non-creative modifications made to this invention by those skilled in the art without inventive effort are still within the scope of protection of this invention.

Claims

1. A dual-air-source long-tube respirator for use in confined spaces, comprising a base (100), characterized in that: The top of the base (100) is provided with an external oxygen supply device (200) for providing oxygen, and the top of the base (100) is fixedly installed with a fixing device (300) for clamping and fixing the external oxygen supply device (200). The left side of the base (100) is provided with an auxiliary oxygen supply device (400) for delivering oxygen into the mask. The external oxygen supply device (200) includes an oxygen supply component (210) disposed at the top of the base (100), and there are several oxygen supply components (210). The top of the oxygen supply component (210) is provided with a connecting component (220) for supplying oxygen into the mask. The fixing device (300) includes a fixing component (330) disposed above the base (100) for clamping and fixing the oxygen supply component (210). Above the base (100) is a moving component (340) for driving the fixing component (330) to clamp and fix the oxygen supply component (210). There are two moving components (340), and the two moving components (340) move in opposite directions. Above the base (100) is an adjusting component (320) for driving the two moving components (340) to move in opposite directions. Above the adjusting component (320) is a driving component (310) for driving the adjusting component (320) to rotate. The auxiliary oxygen supply device (400) includes an oxygen supply component two (420) for supplying oxygen into the mask, and a support component (410) for supporting the oxygen supply component two (420) is provided on the front side of the oxygen supply component two (420).

2. The dual-air-source long-tube respirator for use in confined spaces according to claim 1, characterized in that: The top of the base (100) is fixedly equipped with a support column (101) for placing the fixing device (300).

3. A dual-air-source long-tube respirator for use in confined spaces according to claim 2, characterized in that: The oxygen supply assembly (210) includes oxygen cylinders (211) arranged on the left and right sides of the support column (101). The top of the oxygen cylinder (211) is provided with a control switch (212) for controlling the oxygen discharge in the oxygen cylinder (211). The top of the oxygen cylinder (211) is provided with a diversion pipe (213) for centrally discharging the oxygen in the four oxygen cylinders (211).

4. A dual-air-source long-tube respirator for use in confined spaces according to claim 3, characterized in that: The connecting assembly (220) includes a connecting pipe (221) disposed at the top of the diversion pipe (213), and a storage tray (222) for storing the connecting pipe (221) is disposed at the top of the base (100). Support frames (223) for supporting the storage tray (222) are fixedly installed at the left and right ends of the storage tray (222).

5. A dual-air-source long-tube respirator for use in confined spaces according to claim 2, characterized in that: The drive assembly (310) includes a rotating shaft (312) disposed in the support column (101) for rotation. A handwheel (311) for driving the rotating shaft (312) to rotate is fixedly installed at the top end of the rotating shaft (312), and a bevel gear (313) for driving the adjustment assembly (320) to rotate is fixedly installed at the bottom end of the rotating shaft (312).

6. A dual-air-source long-tube respirator for use in confined spaces according to claim 5, characterized in that: The adjustment assembly (320) includes a fixed column (321) fixedly installed in the support column (101). The fixed column (321) is provided with a threaded rod (322) for driving two moving assemblies (340) to move in opposite directions. The middle part of the shaft of the threaded rod (322) is provided with a bevel gear (323) for meshing with bevel gear one (313).

7. A dual-air-source long-tube respirator for use in confined spaces according to claim 6, characterized in that: The movable component (340) includes a movable plate (341) disposed in the fixed column (321) for threaded connection with the threaded rod (322). A connecting rod (342) for driving the fixed component (330) to clamp and fix the oxygen supply component (210) is fixedly installed at one end of the movable plate (341) away from the bevel gear (323). There are several connecting rods (342).

8. A dual-air-source long-tube respirator for use in confined spaces according to claim 7, characterized in that: The fixing component (330) includes clamping blocks (332) fixedly installed at the left and right ends of the support column (101), and a fixing block (331) for cooperating with the clamping block (332) to fix the oxygen supply component (210) at the end of the connecting rod (342) away from the moving plate (341).

9. A dual-air-source long-tube respirator for use in confined spaces according to claim 3, characterized in that: The support assembly (410) includes a support plate (411) for supporting the oxygen supply assembly (420). The front end of the support plate (411) is provided with a retractable strap (413) for binding the support plate (411) to the arm. An alarm light (412) for alarm is fixedly installed at the top end of the support plate (411). The rear end of the support plate (411) is provided with a retractable strap (414) for tightening the oxygen supply assembly (420).

10. A dual-air-source long-tube respirator for use in confined spaces according to claim 9, characterized in that: The oxygen supply component 2 (420) includes an oxygen cylinder 2 (421) mounted on a support plate (411). A connecting pipe 2 (422) is fixedly installed at the top of the oxygen cylinder 2 (421). A three-way valve (423) for connecting to the connecting pipe 1 (221) is provided at the end of the connecting pipe 2 (422) away from the oxygen cylinder 2 (421). A connecting pipe 3 (424) for connecting to the mask is provided on the front side of the three-way valve (423).

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