Personal safety protection equipment for limited space operation

Abstract

The invention relates to the technical field of safety protection equipment, and discloses limited space operation personal safety protection equipment which comprises a protective garment, an air storage bag is arranged in the protective garment, an air injection hose fixedly penetrates through the top of the air storage bag, and the hose fixedly penetrates through the top of the protective garment. An air delivery hose is fixedly arranged on the right side of the air storage bag in a penetrating mode, and an oxygen inhalation mask is fixedly installed at the air outlet end of the air delivery hose in a penetrating mode. According to the personal safety protection equipment for limited space operation, gas can be quantitatively and uniformly conveyed to workers, waste caused by independent suction of the workers is avoided, the working time of the workers in the limited space is guaranteed, power generation can be conducted while gas conveying is conducted, independent power supply is achieved, frequent charging is avoided, the use functionality is higher, and the practicability is high. And meanwhile, the whistle can be automatically blown to send out a distress signal when an accident occurs, so that the personal safety protection effect of limited space operation is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection equipment, in particular to a personal safety protection equipment for working in a confined space. Background Art

[0002] Confined space refers to a space that is closed or partially closed, with narrow and limited entrances and exits, is not designed as a fixed workplace, has poor natural ventilation, and is prone to accumulation of toxic, harmful, flammable and explosive substances or insufficient oxygen content. Confined space operations pose safety risks, so workers need to wear personal safety protection equipment when entering confined space operations. However, the existing personal safety protection equipment for confined space operations still has certain defects, such as:

[0003] The "personal safety protection equipment for confined space operations" with application number 202320407754.3 cannot quantitatively and evenly deliver the gas supply to the workers during use. It relies on the workers to inhale the gas independently, making it difficult to keep the gas volume inhaled each time consistent, which easily causes the gas volume to exceed the normal demand, resulting in waste, shortening the working time of the workers in confined spaces, and affecting the personal safety protection effect; and it cannot be powered independently during use, and needs to be charged frequently to meet the use needs, which is inconvenient to use and has poor functionality; at the same time, when encountering unexpected situations, it is inconvenient to send signals, the personal safety protection effect is not ideal, and there are limitations in use;

[0004] In view of this, we conducted in-depth research on the above issues and proposed this case to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a personal safety protection device for working in a confined space, so as to solve the problem in the above background technology that the existing personal safety protection device for working in a confined space cannot quantitatively and evenly supply gas to the workers and has poor reciprocating autonomous power supply function, and at the same time has unsatisfactory personal safety protection effect.

[0006] To achieve the above object, the present invention provides the following technical solution: a personal safety protection device for working in a confined space, comprising protective clothing,

[0007] An air storage bag is provided inside the protective clothing, and an air injection hose is fixedly provided through the top of the air storage bag, and the air injection hose is fixedly provided through the top of the protective clothing, and an air delivery hose is fixedly provided through the right side of the air storage bag, and an oxygen mask is fixedly provided through the air outlet end of the air delivery hose;

[0008] A controller and a battery are disposed on the front side of the protective clothing, and the controller is electrically connected to the battery, and a charging port is disposed on the bottom of the battery;

[0009] A chassis is fixedly installed on the right side of the protective clothing, and the gas delivery hose is fixedly installed through the upper end of the left side wall and the top of the chassis in sequence, a reciprocating mechanism is arranged on the left side of the chassis, and a gas delivery mechanism is arranged on the inner top surface of the chassis, and the gas delivery mechanism is connected to the reciprocating mechanism through a transmission mechanism;

[0010] A power generation device is arranged below the reciprocating mechanism, and a one-way rotating mechanism is installed at the bottom of the power generation device. The one-way rotating mechanism is connected to a blowing mechanism arranged on the right inner wall of the chassis. A whistle is connected to the bottom of the blowing mechanism, and the whistle is fixedly arranged through the bottom of the chassis.

[0011] The adoption of the above technical solution facilitates improving the personal safety protection effect.

[0012] As a preferred technical solution of the present invention, the reciprocating mechanism includes an electric motor, which is electrically connected to the controller, and the motor is fixedly mounted on the left inner wall of the chassis, and the shaft end of the motor is coaxially fixedly connected with a reciprocating screw, the right end of the reciprocating screw is connected to a bearing on the right inner wall of the chassis, and a moving plate is sleeved on the outer side of the reciprocating screw, and the reciprocating screw is threadedly connected to the moving plate, an upper support plate is provided on the bottom surface of the moving plate, and the bottom surface of the moving plate is fixedly connected to the top surface of the upper support plate, and the left and right end surfaces of the upper support plate are respectively fixedly connected to the left and right inner walls of the chassis, and a rack is fixedly mounted on the left side of the moving plate.

[0013] By adopting the above technical solution, it is convenient to start the rotation of the reciprocating screw by the motor, so that the moving plate drives the rack to reciprocate.

[0014] As a preferred technical solution of the present invention, the gas delivery mechanism includes a shell, which is fixedly installed on the inner top surface of the chassis, and the gas delivery hose is fixedly passed through the left and right side walls of the shell in sequence, a rotating shaft is passed through the bottom center longitudinal bearing of the shell, and a turntable is coaxially fixedly installed on the top of the rotating shaft, an extrusion wheel is installed on the top surface bearing of the turntable, and the part of the gas delivery hose located in the shell is between the extrusion wheel and the inner wall surface of the shell.

[0015] By adopting the above technical solution, the rotating shaft can drive the rotating disk and the extrusion wheel to rotate to extrude the gas delivery hose, thereby realizing quantitative gas delivery.

[0016] As a preferred technical solution of the present invention, three extrusion wheels are arranged on the top surface of the turntable for extrusion at equal angles, and the shortest distance from the extrusion wheel to the inner wall of the shell is smaller than the radius of the gas hose.

[0017] The adoption of the above technical solution facilitates ensuring effective squeezing of the gas transmission hose.

[0018] As a preferred technical solution of the present invention, the transmission mechanism includes a first sleeve, the top of the first sleeve is connected to the bottom bearing of the shell, and the first sleeve is sleeved on the outer end of the rotating shaft, a mounting shaft is fixedly installed at the bottom center of the first sleeve, and a connecting gear is coaxially fixedly installed at the bottom end of the mounting shaft, and the connecting gear is meshingly connected to the rack, a first pawl is rotatably connected to the inner wall surface of the first sleeve, and one side of the first pawl is connected to the inner wall surface of the first sleeve through a spring, and the first pawl is meshed with a first ratchet coaxially fixedly installed at the bottom end of the rotating shaft.

[0019] By adopting the above technical solution, when the rack moves back and forth, the mounting shaft and the first sleeve are driven to rotate back and forth through the connecting gear, and the first pawl and the first ratchet wheel are arranged to ensure that the rotating shaft rotates in one direction.

[0020] As a preferred technical solution of the present invention, the power generation device includes a transmission rod, the longitudinal bearing of the transmission rod is arranged through the upper support plate, and a bevel gear set is fixedly installed on the top of the transmission rod, and the bevel gear set is fixedly installed on the surface of the reciprocating screw rod, a driving gear is fixedly installed on the surface of the transmission rod, and the driving gear is meshed and connected with a driven gear, the driven gear is coaxially fixedly installed on the shaft end of the generator, and the generator is fixedly installed on the bottom surface of the upper support plate, and the generator is electrically connected to the battery.

[0021] By adopting the above technical solution, when the reciprocating screw rotates, the transmission rod is driven to rotate through the bevel gear set, and the shaft of the generator is driven to rotate through the driving gear and the driven gear, thereby realizing power generation.

[0022] As a preferred technical solution of the present invention, the one-way rotation mechanism includes a second sleeve, which is coaxially fixedly installed on the bottom end of the transmission rod, and the inner wall surface of the second sleeve is rotatably connected with a second pawl, and one side of the second pawl is connected to the inner wall surface of the second sleeve through a spring, a second ratchet is arranged inside the second sleeve, and the second pawl is meshed with the second ratchet, a rotating rod is coaxially fixedly installed on the bottom surface of the second ratchet, and the longitudinal bearing of the rotating rod passes through the lower support plate, and the left and right end surfaces of the lower support plate are respectively fixedly connected to the left and right inner wall surfaces of the chassis, a circular plate is fixedly installed on the bottom end of the rotating rod, and a cylindrical pin is fixedly installed on the bottom surface of the circular plate.

[0023] The above technical solution makes it easy to drive the second sleeve to rotate synchronously when the transmission rod rotates, and when the transmission rod drives the second sleeve to rotate in the opposite direction, the second pawl and the second pawl are set to make the rotating rod rotate unidirectionally, so that the circular plate drives the cylindrical pin to rotate synchronously in one direction.

[0024] As a preferred technical solution of the present invention, the longitudinal centerline of the circular plate is collinear with the longitudinal centerline of the rotating rod, and the cylindrical pin is located at an eccentric position on the bottom surface of the circular plate.

[0025] The adoption of the technical solution facilitates the guarantee of circular rotation of the cylindrical pin.

[0026] As a preferred technical solution of the present invention, the blowing mechanism includes a cylinder, which is fixedly installed on the right inner wall surface of the chassis, and a sliding rod is provided in the center of the left side wall of the cylinder for horizontal sliding, a connecting plate is fixedly installed on the left end of the sliding rod, and a strip groove which matches the cylindrical pin is longitudinally opened on the connecting plate, and the cylindrical pin is provided through the strip groove, a piston is fixedly installed on the right end of the sliding rod, and the diameter of the piston matches the inner diameter of the cylinder, an air inlet pipe is fixedly provided on the upper end of the right side wall of the cylinder, and the air inlet pipe is fixedly provided through the right side wall of the chassis, and a one-way air inlet valve is provided on the air inlet pipe, an air outlet pipe is fixedly provided on the bottom right end of the cylinder, and the air outlet end of the air outlet pipe is fixedly connected with the air inlet end of the whistle, and a one-way air outlet valve is provided on the air outlet pipe.

[0027] By adopting the above technical solution, the slide rod can drive the piston to move back and forth through the cooperation of the cylindrical pin and the strip groove, so that the external gas is sucked in and discharged to the whistle through the outlet pipe, thereby realizing whistling.

[0028] As a preferred technical solution of the present invention, a plurality of through holes are evenly opened at equal angles on the left side wall of the cylinder.

[0029] The above technical solution is adopted to ensure the effective reciprocating movement of the piston and avoid resistance on the left side of the piston.

[0030] Compared with the prior art, the invention has the following beneficial effects: the personal safety protection equipment for confined space operation can ensure that gas is uniformly supplied to the workers in a quantitative manner, avoiding waste caused by workers' self-absorption, thereby ensuring the working time of workers in confined spaces, and can generate electricity while supplying gas, realizing self-power supply, avoiding frequent charging, and having stronger functionality. At the same time, the equipment can automatically blow a whistle to send a distress signal in the event of an unexpected situation, thereby improving the personal safety protection effect of confined space operation;

[0031] 1. Inject oxygen into the air storage bag through the injection hose, then put on the protective clothing and the oxygen mask on the face, and then the staff can enter the confined space to work;

[0032] 2. The controller is used to start the motor to drive the reciprocating screw to rotate, so that the moving plate drives the rack to reciprocate, and the mounting shaft drives the first sleeve to reciprocate through the action of the connecting gear. In the process of the rack moving to the right to drive the first sleeve to rotate, the first pawl and the first ratchet wheel drive the rotating shaft, the rotating disk and the extrusion wheel to rotate, so that the extrusion wheel continuously squeezes the gas delivery hose, thereby quantitatively and evenly delivering the gas in the air storage bag to the oxygen mask for supplying to the staff;

[0033] 3. When the reciprocating screw rotates, the transmission rod is driven to rotate through the bevel gear set, and the shaft of the generator is rotated through the action of the driving gear and the driven gear, so that the generator generates electricity and stores it in the battery, realizing independent power supply. At the same time, the battery can be charged through the charging port, ensuring a variety of charging effects and more flexible use;

[0034] 4. The controller drives the motor to drive the reciprocating screw rod to rotate in the opposite direction, so that the transmission rod rotates in the opposite direction. At this time, the second sleeve drives the rotating rod to rotate through the action of the second ratchet and the second pawl. When the rotating rod rotates, the cylindrical pin is driven to rotate in a circle through the circular plate, and the connecting plate drives the sliding rod and the piston to reciprocate through the cooperation with the strip groove, so as to ensure that the external gas is sucked into the cylinder through the air inlet pipe, and then discharged through the air outlet pipe to blow to the whistle, so that the whistle can be used to call for help, thereby improving the safety protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0037] Figure 3 It is a schematic diagram of the front cross-sectional connection structure of the protective clothing and the air storage bag of the present invention;

[0038] Figure 4 This is a schematic diagram of the main cross-sectional structure of the box body of the present invention;

[0039] Figure 5 It is a schematic diagram of the top cross-sectional connection structure of the first ratchet wheel and the first pawl of the present invention;

[0040] Figure 6 It is a schematic diagram of the three-dimensional connection structure of the rack, the movable plate and the connecting gear of the present invention;

[0041] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the shell of the present invention;

[0042] Figure 8 It is a schematic diagram of the top cross-sectional connection structure of the second ratchet wheel and the second pawl of the present invention;

[0043] Fig. 9For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0044] Fig.10 It is a schematic diagram of an enlarged structure of a three-dimensional connection between a cylindrical pin and a strip groove of the present invention;

[0045] Fig.11 It is a schematic diagram of the three-dimensional cross-sectional structure of the cylinder of the present invention.

[0046] In the figure: 1, protective clothing; 2, air storage bag; 3, air injection hose; 4, air delivery hose; 5, oxygen mask; 6, controller; 7, battery; 8, chassis; 9, motor; 10, reciprocating screw; 11, moving plate; 12, rack; 13, housing; 14, rotating shaft; 15, rotating disk; 16, extrusion wheel; 17, first sleeve; 18, mounting shaft; 19, connecting gear; 20, first pawl; 21, first ratchet; 22, upper support Plate; 23, transmission rod; 24, bevel gear set; 25, driving gear; 26, driven gear; 27, generator; 28, second sleeve; 29, second pawl; 30, second ratchet; 31, rotating rod; 32, lower support plate; 33, round plate; 34, cylindrical pin; 35, cylinder; 36, sliding rod; 37, connecting plate; 38, strip groove; 39, piston; 40, air inlet pipe; 41, air outlet pipe; 42, whistle; 43, through hole. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] See also Figure 1 - Fig.11 , the technical solution of the present invention: a personal safety protection equipment for limited space operation, comprising a protective suit 1, an air storage bag 2 is arranged inside the protective suit 1, and a gas injection hose 3 is fixedly provided through the top of the air storage bag 2, and the gas injection hose 3 is fixedly provided through the top of the protective suit 1, a gas delivery hose 4 is fixedly provided through the right side of the air storage bag 2, and an oxygen absorption mask 5 is fixedly installed through the gas outlet end of the gas delivery hose 4;

[0049] A controller 6 and a battery 7 are provided on the front side of the protective clothing 1, and the controller 6 is electrically connected to the battery 7, and a charging port is provided at the bottom of the battery 7;

[0050] The right side of the protective clothing 1 is fixedly mounted with a chassis 8, and the gas delivery hose 4 is fixedly passed through the upper end of the left side wall and the top of the chassis 8 in sequence, the left side of the chassis 8 is provided with a reciprocating mechanism, and the inner top surface of the chassis 8 is provided with a gas delivery mechanism, and the gas delivery mechanism is connected to the reciprocating mechanism through a transmission mechanism;

[0051] A power generation device is arranged below the reciprocating mechanism, and a one-way rotating mechanism is installed at the bottom of the power generation device. The one-way rotating mechanism is connected to a blowing mechanism arranged on the right inner wall of the chassis 8. The bottom of the blowing mechanism is connected to a whistle 42, and the whistle 42 is fixedly arranged through the bottom of the chassis 8.

[0052] The reciprocating mechanism includes an electric motor 9, which is electrically connected to the controller 6. The electric motor 9 is fixedly mounted on the left inner wall of the chassis 8, and the shaft end of the electric motor 9 is coaxially fixedly connected with a reciprocating screw 10, the right end of the reciprocating screw 10 is connected to a bearing on the right inner wall of the chassis 8, and a moving plate 11 is sleeved on the outer side of the reciprocating screw 10, and the reciprocating screw 10 is threadedly connected to the moving plate 11, an upper support plate 22 is provided on the bottom surface of the moving plate 11, and the bottom surface of the moving plate 11 is fixedly connected to the top surface of the upper support plate 22, and the left and right end surfaces of the upper support plate 22 are respectively fixedly connected to the left and right inner walls of the chassis 8, and a rack 12 is fixedly mounted on the left side of the moving plate 11.

[0053] The gas delivery mechanism includes a shell 13, which is fixedly mounted on the inner top surface of the chassis 8, and the gas delivery hose 4 is fixedly passed through the left and right side walls of the shell 13 in sequence. A rotating shaft 14 is provided through the bottom center longitudinal bearing of the shell 13, and a turntable 15 is coaxially fixedly mounted on the top of the rotating shaft 14. An extrusion wheel 16 is mounted on the top surface bearing of the turntable 15, and the portion of the gas delivery hose 4 located in the shell 13 is between the extrusion wheel 16 and the inner wall surface of the shell 13. Three extrusion wheels 16 are provided on the top surface of the turntable 15 for extrusion at equal angles, and the shortest distance from the extrusion wheel 16 to the inner wall surface of the shell 13 is less than the radius of the gas delivery hose 4.

[0054] The transmission mechanism includes a first sleeve 17, the top of the first sleeve 17 is connected to the bottom bearing of the shell 13, and the first sleeve 17 is sleeved on the outer end of the rotating shaft 14, a mounting shaft 18 is fixedly installed at the bottom center of the first sleeve 17, and a connecting gear 19 is coaxially fixedly installed at the bottom end of the mounting shaft 18, and the connecting gear 19 is meshed with the rack 12, a first pawl 20 is rotatably connected to the inner wall surface of the first sleeve 17, and one side of the first pawl 20 is connected to the inner wall surface of the first sleeve 17 through a spring, and the first pawl 20 is meshed with a first ratchet 21 coaxially fixedly installed at the bottom end of the rotating shaft 14.

[0055] The power generation device includes a transmission rod 23, a longitudinal bearing of the transmission rod 23 is set through the upper support plate 22, and a bevel gear set 24 is fixedly installed on the top of the transmission rod 23, and the bevel gear set 24 is fixedly installed on the surface of the reciprocating screw 10, a driving gear 25 is fixedly installed on the surface of the transmission rod 23, and the driving gear 25 is meshed and connected to the driven gear 26, the driven gear 26 is coaxially fixedly installed on the shaft end of the generator 27, and the generator 27 is fixedly installed on the bottom surface of the upper support plate 22, and the generator 27 is electrically connected to the battery 7.

[0056] The one-way rotation mechanism includes a second sleeve 28, which is coaxially fixedly installed on the bottom end of the transmission rod 23, and the inner wall surface of the second sleeve 28 is rotatably connected with a second pawl 29, and one side of the second pawl 29 is connected to the inner wall surface of the second sleeve 28 through a spring, a second ratchet 30 is arranged inside the second sleeve 28, and the second pawl 29 is meshed with the second ratchet 30, a rotating rod 31 is coaxially fixedly installed on the bottom surface of the second ratchet 30, and the longitudinal bearing of the rotating rod 31 passes through the lower support plate 32, and the left and right end surfaces of the lower support plate 32 are respectively fixedly connected to the left and right inner wall surfaces of the chassis 8, a circular plate 33 is fixedly installed on the bottom end of the rotating rod 31, and a cylindrical pin 34 is fixedly installed on the bottom surface of the circular plate 33, the longitudinal axis centerline of the circular plate 33 is colinear with the longitudinal axis centerline of the rotating rod 31, and the cylindrical pin 34 is located at an eccentric position on the bottom surface of the circular plate 33.

[0057] The blowing mechanism includes a cylinder 35, a plurality of through holes 43 are evenly opened at equal angles on the left side wall of the cylinder 35, the cylinder 35 is fixedly installed on the right inner wall of the chassis 8, and a slide bar 36 is set to slide horizontally through the center of the left side wall of the cylinder 35, and a connecting plate 37 is fixedly installed on the left end of the slide bar 36, and a strip groove 38 that matches the cylindrical pin 34 is opened longitudinally on the connecting plate 37, and the cylindrical pin 34 is set to penetrate the strip groove 38, and the right end of the slide bar 36 A piston 39 is fixedly installed, and the diameter of the piston 39 is consistent with the inner diameter of the cylinder 35. An air inlet pipe 40 is fixedly provided on the upper end of the right side wall of the cylinder 35, and the air inlet pipe 40 is fixedly passed through the right side wall of the chassis 8, and a one-way air inlet valve is provided on the air inlet pipe 40. An air outlet pipe 41 is fixedly provided on the right end of the bottom of the cylinder 35, and the air outlet end of the air outlet pipe 41 is fixedly connected with the air inlet end of the whistle 42, and a one-way air outlet valve is provided on the air outlet pipe 41.

[0058] Working principle: When in use, oxygen is injected into the air storage bag 2 through the air injection hose 3, and then the protective clothing 1 is put on the body and the oxygen mask 5 is put on the face, and then the staff can enter the limited space to work;

[0059] When the oxygen content in the limited space is insufficient, the controller 6 can drive the motor 9 to drive the reciprocating screw 10 to rotate, so that the moving plate 11 drives the rack 12 to reciprocate, so that the connecting gear 19 meshing with the rack 12 drives the mounting shaft 18 and the first sleeve 17 to reciprocate, and in the process of the rack 12 moving to the right, the first ratchet 20 and the first ratchet 21 drive the rotating shaft 14 to rotate, and in the process of the reciprocating rotation of the first sleeve 17, the rotating shaft 14 is intermittently rotated in one direction, and the rotation of the rotating shaft 14 drives the rotating disk 15 and the extrusion wheel 16 to rotate synchronously and intermittently in one direction, so that the extrusion wheel 16 squeezes the gas delivery hose 4, and then absorbs the oxygen in the air storage bag 2 and delivers it to the oxygen mask 5 for the staff to inhale;

[0060] When the reciprocating screw 10 rotates, the transmission rod 23 is driven to rotate through the action of the bevel gear set 24, and the rotation of the transmission rod 23 drives the driving gear 25 to rotate synchronously, so that the driven gear 26 meshing with the driving gear 25 drives the shaft of the generator 27 to rotate, so that the generator 27 generates electricity and stores it in the battery 7, realizing autonomous power supply;

[0061] When an emergency occurs, the controller 6 drives the motor 9 to drive the reciprocating screw 10 to rotate in the opposite direction, and the bevel gear set 24 makes the transmission rod 23 rotate in the opposite direction, so that the transmission rod 23 drives the second sleeve 28 to rotate in the opposite direction. At this time, the second pawl 29 and the second ratchet 30 drive the rotating rod 31 to rotate, and the rotation of the rotating rod 31 drives the cylindrical pin 34 to produce a circular rotation through the circular plate 33. Under the cooperation of the cylindrical pin 34 and the strip groove 38, the connecting plate 37 drives the sliding rod 36 and the piston 39 to reciprocate. When the piston 39 moves to the left, the external air is sucked into the cylinder 35 through the air inlet pipe 40, and when the piston 39 moves to the right, the gas in the cylinder 35 is discharged through the air outlet pipe 41 to the whistle 42, so that the whistle 42 sounds, releasing a rescue signal, thereby improving the personal safety protection effect of confined space operations. The content not described in detail in this manual belongs to the existing technology known to professional and technical personnel in this field.

[0062] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A personal safety protection device for working in a confined space, comprising a protective garment (1), characterized in that: An air storage bag (2) is arranged inside the protective clothing (1), and an air injection hose (3) is fixedly provided through the top of the air storage bag (2), and the air injection hose (3) is fixedly provided through the top of the protective clothing (1), and an air delivery hose (4) is fixedly provided through the right side of the air storage bag (2), and an oxygen inhalation mask (5) is fixedly provided through the air outlet end of the air delivery hose (4); A controller (6) and a battery (7) are arranged on the front side of the protective clothing (1), and the controller (6) is electrically connected to the battery (7), and a charging port is arranged at the bottom of the battery (7); A chassis (8) is fixedly mounted on the right side of the protective clothing (1), and the gas delivery hose (4) is fixedly passed through the upper end of the left side wall and the top of the chassis (8) in sequence, a reciprocating mechanism is arranged on the left side of the chassis (8), and a gas delivery mechanism is arranged on the inner top surface of the chassis (8), and the gas delivery mechanism is connected to the reciprocating mechanism via a transmission mechanism; A power generation device is arranged below the reciprocating mechanism, and a one-way rotating mechanism is installed at the bottom of the power generation device. The one-way rotating mechanism is connected to a blowing mechanism arranged on the right inner wall of the chassis (8). The bottom of the blowing mechanism is connected to a whistle (42), and the whistle (42) is fixedly arranged to penetrate the bottom of the chassis (8).

2. The personal safety protection equipment for confined space operations according to claim 1, characterized in that: The reciprocating mechanism comprises an electric motor (9), the electric motor (9) being electrically connected to the controller (6), the electric motor (9) being fixedly mounted on the left inner wall surface of the chassis (8), and the shaft end of the electric motor (9) being coaxially fixedly connected with a reciprocating screw rod (10), the right end of the reciprocating screw rod (10) being bearing-connected to the right inner wall surface of the chassis (8), and a moving plate (11) being sleeved on the outer side of the reciprocating screw rod (10), and the reciprocating screw rod (10) being threadedly connected to the moving plate (11), an upper support plate (22) being arranged on the bottom surface of the moving plate (11), and the bottom surface of the moving plate (11) being fixedly connected to the top surface of the upper support plate (22), and the left and right end surfaces of the upper support plate (22) being fixedly connected to the left and right inner wall surfaces of the chassis (8), respectively, and a rack (12) being fixedly mounted on the left side surface of the moving plate (11).

3. The personal safety protection equipment for confined space operations according to claim 2, characterized in that: The gas delivery mechanism comprises a shell (13), the shell (13) is fixedly mounted on the inner top surface of the chassis (8), and the gas delivery hose (4) is fixedly passed through the left and right side walls of the shell (13) in sequence, a rotating shaft (14) is passed through the bottom center longitudinal bearing of the shell (13), and a rotating disk (15) is coaxially fixedly mounted on the top of the rotating disk (14), an extrusion wheel (16) is mounted on the top surface bearing of the rotating disk (15), and the part of the gas delivery hose (4) located in the shell (13) is between the extrusion wheel (16) and the inner wall surface of the shell (13).

4. The personal safety protection equipment for confined space operations according to claim 3 is characterized in that: Three extrusion wheels (16) are arranged on the top surface of the rotating disk (15) for extrusion at equal angles, and the shortest distance from the extrusion wheel (16) to the inner wall of the shell (13) is smaller than the radius of the gas delivery hose (4).

5. The personal safety protection equipment for confined space operations according to claim 3 is characterized in that: The transmission mechanism comprises a first sleeve (17), the top of which is connected to a bearing on the bottom surface of the housing (13), and the first sleeve (17) is sleeved on the outer end of the rotating shaft (14), a mounting shaft (18) is fixedly mounted at the center of the bottom surface of the first sleeve (17), and a connecting gear (19) is coaxially fixedly mounted at the bottom end of the mounting shaft (18), and the connecting gear (19) is meshingly connected to the rack (12), a first pawl (20) is rotatably connected to the inner wall surface of the first sleeve (17), and one side of the first pawl (20) is connected to the inner wall surface of the first sleeve (17) through a spring, and the first pawl (20) is meshing with a first ratchet (21) coaxially fixedly mounted on the bottom end of the rotating shaft (14).

6. The personal safety protection equipment for confined space operations according to claim 2, characterized in that: The power generation device comprises a transmission rod (23), a longitudinal bearing of the transmission rod (23) is arranged to penetrate the upper support plate (22), a bevel gear set (24) is fixedly mounted on the top end of the transmission rod (23), and the bevel gear set (24) is fixedly mounted on the surface of the reciprocating screw rod (10), a driving gear (25) is fixedly mounted on the surface of the transmission rod (23), and the driving gear (25) is meshedly connected with a driven gear (26), and the driven gear (26) is coaxially fixedly mounted on the shaft end of a generator (27), and the generator (27) is fixedly mounted on the bottom surface of the upper support plate (22), and the generator (27) is electrically connected to the storage battery (7).

7. The personal safety protection equipment for confined space operations according to claim 6, characterized in that: The one-way rotation mechanism comprises a second sleeve (28), the second sleeve (28) is coaxially fixedly mounted on the bottom end of the transmission rod (23), and the inner wall surface of the second sleeve (28) is rotatably connected with a second pawl (29), and one side of the second pawl (29) is connected to the inner wall surface of the second sleeve (28) through a spring, a second ratchet (30) is arranged inside the second sleeve (28), and the second pawl (29) is meshed with the second ratchet (30), a rotating rod (31) is coaxially fixedly mounted on the bottom surface of the second ratchet (30), and the longitudinal bearing of the rotating rod (31) passes through the lower support plate (32), and the left and right end surfaces of the lower support plate (32) are respectively fixedly connected to the left and right inner wall surfaces of the chassis (8), a circular plate (33) is fixedly mounted on the bottom end of the rotating rod (31), and a cylindrical pin (34) is fixedly mounted on the bottom surface of the circular plate (33).

8. The personal safety protection equipment for confined space operations according to claim 7, characterized in that: The longitudinal centerline of the circular plate (33) is colinear with the longitudinal centerline of the rotating rod (31), and the cylindrical pin (34) is located at an eccentric position on the bottom surface of the circular plate (33).

9. The personal safety protection equipment for confined space operations according to claim 7, characterized in that: The blowing mechanism comprises a cylinder (35), the cylinder (35) is fixedly mounted on the right inner wall of the case (8), and a slide rod (36) is provided in the center of the left wall of the cylinder (35) for horizontal sliding penetration, a connecting plate (37) is fixedly mounted on the left end of the slide rod (36), and a strip groove (38) which is consistent with the cylindrical pin (34) is longitudinally penetrated on the connecting plate (37), and the cylindrical pin (34) is arranged to penetrate the strip groove (38), and a piston (39) is fixedly mounted on the right end of the slide rod (36). The diameter of the piston (39) matches the inner diameter of the cylinder (35); an air inlet pipe (40) is fixedly provided at the upper end of the right side wall of the cylinder (35); the air inlet pipe (40) is fixedly provided through the right side wall of the chassis (8); a one-way air inlet valve is provided on the air inlet pipe (40); an air outlet pipe (41) is fixedly provided at the right end of the bottom of the cylinder (35); the air outlet end of the air outlet pipe (41) is fixedly connected to the air inlet end of the whistle (42); and a one-way air outlet valve is provided on the air outlet pipe (41).

10. The personal safety protection equipment for confined space operations according to claim 9, characterized in that: A plurality of through holes (43) are evenly formed at equal angles on the left side wall of the cylinder (35).

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